JP2016001243A - Information display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information display device installed on a side of a road, the information display device suppressing an increase in size and weight of the device and enabling efficient heat radiation from the device.SOLUTION: An information display device 1 is installed on a side of a road R, and includes a light emitting display board 2 that is arranged substantially vertical to the road R, a housing 3 that has the light emitting display board 2 provided on its principal surface, and a heat sink 4 that is attached to the housing 3 and is cooled with the use of a travel wind A generated in the direction substantially vertical to the principal surface.

Description

  The present invention relates to an information display device installed on a roadway.

  Patent Document 1 discloses an LED unit having an LED lamp array in which a plurality of LED lamps are mounted on a printed wiring board, and a unit body that holds the LED lamp array. According to this, a heat dissipation cavity is provided in the unit main body, and the amount of heat flowing from the LED lamp into the information board casing is reduced by releasing heat from the LED lamp toward the casing of the display panel to the outside air. The

  Patent Document 2 discloses an information display device that emits and displays road information and the like. In this information display device, a light emitting display plate for emitting and displaying information is disposed in parallel behind the transparent front plate, and a fan is provided between the front plate and the light emitting display plate. It is configured so that heat of the light emitting display plate is not transmitted to the front plate by the airflow generated by the fan. Further, it is disclosed that a gas or liquid serving as a heat medium may be passed between the light emitting display panel and the front panel, and the heat of the heat medium may be released to the outside of the apparatus by a cooling radiator.

JP 2002-368284 A JP 2006-155443 A

  However, according to the configuration of Patent Document 1, if the cavity of the unit body is not properly ventilated, the air in the cavity becomes a heat insulating material, and heat may stay in the LED unit. Further, in order to realize heat diffusion and heat dissipation in the device, as in Patent Document 2, when large parts such as a fan, a heat medium, a cooling heat radiator, etc. are added to the light emitting display unit, the case, etc., The information display device becomes larger and heavier. Increasing the size of the device creates restrictions on the installation location, and increasing the weight requires an increase in the strength of the poles, fixtures, etc. that support it, which is not preferable.

  Therefore, an object of the present invention is to provide a configuration that enables efficient heat dissipation of an apparatus while suppressing an increase in size and weight of the apparatus in an information display apparatus installed on a road.

  An information display device installed on a roadway according to the present invention includes a light emitting display plate disposed substantially perpendicular to the traveling direction of the roadway, a housing provided with a light emitting display plate on a main surface, and a housing And a heat sink that is cooled using traveling wind generated in a direction substantially perpendicular to the main surface.

  According to the information display device, the heat sink attached to the housing is cooled by the traveling wind generated by the vehicle passing through the roadway. Therefore, by simply adding a heat sink to the light-emitting display panel and the housing, it is possible to efficiently dissipate the device while suppressing an increase in size and weight of the information display device.

  As a first form, when the information display device is installed on the side of the roadway, the heat sink is attached to the side surface of the case on the roadway side, which is the case surface adjacent to the main surface. Thereby, in the information display device installed on the side of the roadway, the casing can be radiated by efficiently using the traveling wind near the side of the roadway.

  As a second form, when the information display device is installed above the roadway, the heat sink is attached to the bottom surface of the casing adjacent to the main surface. Thereby, in the information display device installed on the upper side of the roadway, the casing can be radiated by efficiently using the traveling wind near the upper side of the roadway.

  As a third aspect, the information display device further includes a separation fixing member for fixing the rear surface of the housing facing the main surface in a state of facing and separating from a predetermined wall surface. It is attached to the rear surface of the housing so as to be included in the space defined by the fixing member and the wall surface. As described above, since the heat sink is included in the space with the wall surface having a relatively large heat capacity, the heat dissipation is ensured, and the heat dissipation is improved by guiding the traveling wind in this space. Therefore, by simply adding the heat sink and the separation fixing member to the light emitting display plate and the housing, the information display device can be efficiently dissipated without being greatly increased in size and weight.

  For example, the separation fixing member is a plate-like member that is erected on the back surface of the housing with a heat sink interposed therebetween and that has an opening end in two opposite directions. The plate-like member is a wall side substantially parallel to the back surface of the housing. It has a fixed surface, and it is comprised so that a separation fixing member may be fixed to a predetermined wall surface by the wall side fixed surface. Thus, the ease of introduction of the information display device is enhanced by the configuration in which the wall-side fixing surface is easily fixed to the wall surface.

  Moreover, it is preferable that a wall side fixed surface is arrange | positioned in the space defined by the housing | casing back surface. Thereby, the installation area of the information display device does not increase, and the ease of introduction of the information display device further increases.

  As a fourth mode, a duct is further provided in the third mode. The duct extends from the housing surface adjacent to the housing rear surface and the main surface to one opening end of the separation fixing member, one opening portion opens on the main surface side, and the other opening portion is substantially on the housing rear surface. Open in parallel. As a result, traveling air that is substantially perpendicular to the main surface is efficiently guided to the heat sink on the back surface of the housing, and cooling of the housing is further promoted. Therefore, by simply adding a heat sink, a separation fixing member, and a duct to the light emitting display panel and the casing, an efficient heat dissipation configuration can be realized without significantly increasing the size and weight of the information display device. The

  For example, one opening is arranged below the main surface, and the other opening is configured to open above the main surface. Thereby, since one opening part of a duct is arrange | positioned under the light emission display board, driving | running | working wind can be induced | guided | derived to a housing | casing back surface, without impairing the visibility of a light emission display board.

  As a fifth mode, the information display device includes a duct, and the heat sink is attached to a part of the rear surface of the housing facing the main surface. The duct extends from a predetermined casing surface adjacent to the rear surface and the main surface of the casing to the rear surface of the casing, one opening is opened substantially parallel to the predetermined casing surface, and the other opening is connected to the heat sink. Open. Therefore, by simply adding the heat sink and the duct to the light emitting display plate and the casing, an efficient heat dissipation configuration can be realized without causing a significant increase in size and weight of the information display device.

  For example, the predetermined housing surface is the housing bottom surface, and the duct is configured to extend from the housing bottom surface to the lower portion of the heat sink. As a result, since the opening of the duct is positioned below the light emitting display panel, it is possible to guide the traveling wind to the rear surface of the casing without impairing the visibility of the light emitting display panel, Even when the installation space of the member is limited, a configuration for efficiently radiating the information display device is realized.

  Hereinafter, in other words, the information display device according to the first and second embodiments is installed on the roadway, and includes a light-emitting display plate, a housing provided with a light-emitting display plate on the main surface, and a housing adjacent to the main surface. And a heat sink attached to the side surface of the body or the bottom surface of the housing. With this heat sink configuration, efficient cooling of the casing using traveling wind is realized. More specifically, the heat sink is attached to a surface adjacent to the main surface in the longitudinal direction of the housing side surface or the housing bottom surface. Moreover, it is preferable that a heat sink has the base part attached to the housing | casing side surface or the housing | casing bottom face, and the convex part extended in the direction perpendicular | vertical to a main surface while standing on the base part.

  An information display device according to a third aspect is installed on a roadway, and includes a light emitting display plate, a housing provided with a light emitting display plate on a main surface, and a heat sink attached to a rear surface of the housing facing the main surface. The heat sink is fixed in a state of being opposed to and spaced apart from a predetermined wall surface, and is provided with a separation fixing member that forms an open end in two opposite directions. With the configuration of the heat sink and the separation fixing member, efficient cooling of the casing using the traveling wind is realized. More specifically, the separation fixing member is formed of a plate-like member standing on the back surface of the housing with a heat sink interposed therebetween, and the plate-like member has a wall-side fixing surface substantially parallel to the back surface of the housing, and the wall The separation fixing member is fixed to a predetermined wall surface by the side fixing surface, and the heat sink is erected on the base portion attached to the rear surface of the housing and in the opening direction of the two opening ends. It has a protruding part that extends. And it is preferable that a wall side fixed surface is arrange | positioned in the space defined by the housing | casing back surface.

  The information display device of the fourth form further includes a duct in the third form, and the duct extends from the housing surface adjacent to the rear surface and the main surface of the housing from the opening end of the separation fixing member, and one opening portion is provided. An opening is made on the main surface side, and the other opening is opened substantially parallel to the rear surface of the housing. This duct configuration realizes more efficient cooling of the housing. More specifically, it is preferable that one opening is arranged below the main surface and the other opening is opened above the main surface.

  An information display device according to a fifth aspect is installed on a roadway, and includes a light emitting display plate, a housing provided with a light emitting display plate on a main surface, and a heat sink attached to a rear surface of the housing facing the main surface. , Extending from a predetermined casing surface adjacent to the rear surface of the casing and the main surface to the rear surface of the casing, one opening opening substantially parallel to the predetermined casing surface, and the other opening opening to the heat sink A duct. By the configuration of the heat sink and the duct, efficient cooling of the housing using the traveling wind is realized. More specifically, the predetermined housing surface is the housing bottom surface, the duct extends from the housing bottom surface to the lower part of the heat sink, and the heat sink is erected on the base portion attached to the housing rear surface and the base portion. In addition, it is preferable to have a convex portion extending in the opening direction of the other opening of the duct.

It is a bird's-eye view which shows the information display apparatus by the 1st Embodiment of this invention. It is a figure which shows the information display apparatus by 1st Embodiment. It is a figure which shows the modification of the information display apparatus by 1st Embodiment. It is a bird's-eye view which shows the information display apparatus by the 2nd Embodiment of this invention. It is a figure which shows the information display apparatus by 2nd Embodiment. It is a bird's-eye view which shows the information display apparatus by the 3rd Embodiment of this invention. It is a figure which shows the information display apparatus by 3rd Embodiment. It is a figure which shows the modification of the information display apparatus of 3rd Embodiment. It is a figure which shows the modification of the information display apparatus of 3rd Embodiment. It is a figure which shows the information display apparatus by the 4th Embodiment of this invention. It is a figure which shows the modification of the information display apparatus of 4th Embodiment. It is a figure which shows the information display apparatus by the 5th Embodiment of this invention. It is a figure which shows the information display apparatus by the modification of this invention.

<First Embodiment>
FIG. 1 shows a bird's-eye view of an information display device 1 according to the first embodiment of the present invention. The information display device 1 includes a light emitting display plate 2, a housing 3, and a heat sink 4, and is attached to a wall surface W <b> 2 on the left side of the roadway R. In FIG. 1, it is assumed that the traveling direction of a vehicle (not shown) on the roadway R is the direction from the near side to the far side (arrow V). The wall surface provided on the ground G on the left side of the roadway R includes wall surfaces W1 and W3 parallel to the roadway R and a wall surface W2 substantially perpendicular to the roadway R. That is, the information display device 1 is arranged so that the back surface thereof is fixed to the wall surface W2 and information is transmitted to the driver of the vehicle traveling on the road R from the left side. Note that in the drawings of the present application, the drawings are not exactly as shown in the drawings, and some symbols may be omitted for clarity of the drawings.

  In FIG. 2, the front view (a) of the information display apparatus 1 by this embodiment, the side view (b) seen from the roadway R side, and the bottom view (c) are shown. The light-emitting display board 2 includes an LED module, the LED is driven by a power supply unit (not shown), and the display content is controlled by a control unit (not shown). The power supply unit includes an LED lighting circuit board, a battery, and the like. The light-emitting display board 2 can display traffic information such as “occurrence of accident” in a light-emitting manner, and displays characters, figures, still images, moving images, or combinations thereof according to specifications.

  The light emitting display panel 2 is provided on the main surface 30 of the housing 3, and the power supply unit and the control unit are included in the housing 3. Inside the housing 3, heat from the LED module, the power supply unit and the control unit, particularly heat from the power supply unit tends to stay, and the housing 3 needs to be radiated appropriately. The light emitting display plate 2 and the main surface 30 on the frame may be formed flush with each other, the light emitting display plate 2 may be disposed on the outside of the housing with respect to the main surface 30, You may arrange | position to the housing | casing internal side rather than the surface 30. FIG.

  In the present embodiment, the housing 3 forms a hexahedron together with the main surface 30. The housing 3 is a housing surface adjacent to the main surface 30, a housing side surface 31 on the roadway R side, a housing bottom surface 32 adjacent to the main surface 30, a housing back surface 33 facing the main surface 30, and a housing side surface. A housing side surface 34 that faces the housing 31 and a housing upper surface 35 are provided. In the present embodiment, the heat sink 4 is attached to the housing side surface 31.

  The heat sink 4 includes a plate-like base portion 40 attached to the side surface 31 of the housing in a surface contact state, and a large number of convex portions 41 (fins) that are erected on the base portion 40 and arranged in parallel. Each of the convex portions 41 extends in a direction substantially perpendicular to the main surface 30, that is, extends in a direction from the main surface 30 toward the housing back surface 33.

  Note that a material having high thermal conductivity (for example, a metal such as aluminum, aluminum alloy, or copper) is used for the sheet metal forming the casing side surface 31 (particularly, the portion to which the base portion 40 of the heat sink 4 is fixed). It is preferable. The heat sink 4 is also formed of a metal such as aluminum, an aluminum alloy, or copper. In particular, from the viewpoint of reducing the weight of the information display device 1, it is preferable to use aluminum or an aluminum alloy as the material.

  Here, when the vehicle passes on the roadway R in the traveling direction V, a traveling wind A is generated substantially parallel to the traveling direction V in the vicinity of the roadway R as shown in FIGS. That is, the running air A that is an air flow substantially perpendicular to the main surface 30 is used to cool the heat sink 4 attached to the side surface 31 of the casing, thereby radiating the casing 3. As described above, in the information display device 1 according to the present embodiment, since the only additional component for the light emitting display plate 2 and the housing 3 is the heat sink 4, the information display device 1 suppresses the increase in size and weight. An efficient heat dissipation configuration is realized.

  Further, in the information display device 1 installed on the side of the roadway R, the heat sink 4 is attached to the case side surface 31 on the roadway R side. Can do. In particular, in the present embodiment, the longitudinal direction of the main surface 30 is the vertical direction (vertical direction), and the heat sink 4 is attached to the housing side surface 31 along the longitudinal direction. Therefore, the surface area of the heat sink 4 exposed to the traveling wind A can be increased, and an efficient heat dissipation configuration is realized. Furthermore, by setting the extending direction of the convex portion 41 along the traveling wind A (roadway R), the area where the heat sink 4 is exposed to the traveling wind A increases and the passage of the traveling wind A is not hindered. The heat dissipation in the heat sink 4 is enhanced.

In the present embodiment, various modifications can be made.
For example, in the above-described embodiment, the front end of the heat sink 4 on the roadway side is within the space defined by the wall surface W2 (that is, the front end of the convex part 41 on the roadway side does not protrude further toward the roadway R side than the wall surface W3. ) The arrangement to be arranged is shown. However, if the installation condition permits, as shown in FIG. 3 (bottom view), the roadway side tip of the convex portion 41 may protrude from the wall surface W3 to the roadway R side. Thereby, passage of traveling wind A between convex parts 41 can be promoted more.

  In the above embodiment, the configuration in which the information display device 1 is arranged on the left side of the roadway R is shown. However, the information display device 1 may be arranged on the right side of the roadway R. In this case, the side surface of the housing to which the heat sink 4 is attached is the left side surface (the housing side surface 34) with respect to the main surface 30.

  In the above embodiment, the information display device 1 is fixed to the wall surface W2. However, the information display device 1 may be configured to stand on the ground by a pole or the like. Note that, regardless of whether the information display device 1 is a fixed wall surface type or a self-supporting type, the angle formed by the traveling direction of the roadway R and the direction perpendicular to the main surface 30 does not necessarily have to be a predetermined angle. May be formed. The predetermined angle is an angle such that an angle formed between the direction perpendicular to the main surface 30 and the roadway R is 45 degrees or less, preferably 30 degrees or less. In this specification, even in such a case, it is assumed that the light emitting display plate 2 is disposed substantially perpendicular to the roadway R, and the traveling wind A is generated in a direction substantially perpendicular to the main surface 30. Shall. Furthermore, when the information display device 1 is self-supporting in the central separation band, the heat sink 4 may be attached to both the side surfaces 31 and 34 of both cases.

<Second Embodiment>
In the said 1st Embodiment, although the information display apparatus 1 showed the structure installed in the side of the roadway R, in this embodiment, the structure by which the information display apparatus 1 is installed above the roadway R is shown. FIG. 4 shows a bird's eye view of the information display apparatus 1 according to the present embodiment. The information display device 1 includes a light emitting display plate 2, a housing 3, and a heat sink 4. The information display device 1 is installed via a pole 8 with respect to the ground G so that the light emitting display plate 2 is positioned above the roadway R. 4, as in FIG. 1, the traveling direction of the vehicle (not shown) on the roadway R is assumed to be the direction from the near side to the far side (arrow V). That is, the information display device 1 is arranged so as to transmit information to the driver of the vehicle traveling on the roadway R from above.

  FIG. 5 shows a front view (a), a side view (b), and a bottom view (c) of the information display device 1 according to the present embodiment. The light emitting display panel 2 and the light emitting display panel 2 shown in the first embodiment have different dimensions, but the basic configuration is the same. That is, the light emitting display panel 2 includes an LED module and is connected to a power supply unit and a control unit (not shown).

  As in the first embodiment, the light emitting display panel 2 is provided on the main surface 30 of the housing 3, and the power supply unit and the control unit are included inside the housing 3. Inside the housing 3, heat from the LED module, the power supply unit and the control unit, particularly heat from the power supply unit tends to stay, and the housing 3 needs to be radiated appropriately. The housing 3 forms a hexahedron together with the main surface 30, and has a housing side surface 31, a housing bottom surface 32, a housing back surface 33, a housing side surface 34, and a housing top surface 35. In the present embodiment, the heat sink 4 is attached to the housing bottom surface 32.

  The heat sink 4 includes a plate-like base portion 40 attached to the bottom surface 32 of the housing in a surface contact state, and a large number of convex portions 41 (fins) which are erected on the base portion 40 and arranged in parallel. Each of the convex portions 41 extends in a direction substantially perpendicular to the main surface 30, that is, extends in a direction from the main surface 30 toward the housing back surface 33. Note that the materials of the housing 3 and the heat sink 4 may be the same as those shown in the first embodiment.

  Here, when the vehicle passes on the roadway R in the traveling direction V, the traveling wind A is generated substantially parallel to the traveling direction V above the roadway R as shown in FIGS. That is, the traveling air A that is an air flow substantially perpendicular to the main surface 30 is used to cool the heat sink 4 attached to the bottom surface 32 of the casing, and thereby the casing 3 is dissipated. Thus, also in the information display device 1 of the present embodiment, since the only additional component for the light emitting display plate 2 and the housing 3 is the heat sink 4, the increase in size and weight of the information display device 1 is suppressed. An efficient heat dissipation configuration can be realized.

  In addition, the information display device 1 installed above the roadway R has the heat sink 4 attached to the bottom surface 32 of the casing located just above the vehicle. It can dissipate heat. In particular, in the present embodiment, the longitudinal direction of the main surface 30 is the lateral direction (left-right direction), and the heat sink 4 is attached to the housing bottom surface 32 along the longitudinal direction. Therefore, the surface area of the heat sink 4 exposed to the traveling wind A can be increased, and an efficient heat dissipation configuration is realized. Furthermore, by setting the extending direction of the convex portion 41 along the traveling wind A (roadway R), the area where the heat sink 4 is exposed to the traveling wind A increases and the passage of the traveling wind A is not hindered. The heat dissipation in the heat sink 4 is enhanced.

  In the present embodiment, various modifications can be made. For example, in the above-described embodiment, the information display device 1 is shown as a self-supporting configuration in which the information display device 1 is installed on the ground G by the pole 8. Other fixed roadways, tunnel wellheads, etc.) may be used. Even if the information display device 1 is a self-standing type or a structure-fixed type, the angle formed between the direction perpendicular to the main surface 30 and the roadway R (traveling direction V) is not necessarily parallel. A predetermined angle may be formed (for example, it may be inclined downward at an angle of 45 degrees or less, preferably 30 degrees or less). In this specification, even in such a case, it is assumed that the light emitting display plate 2 is disposed substantially perpendicular to the roadway R, and the traveling wind A is generated in a direction substantially perpendicular to the main surface 30. Shall.

<Third Embodiment>
In the first and second embodiments, the configuration in which the heat sink 4 is attached to the side surface or the bottom surface side of the information display device 1 has been described. However, in this embodiment, the heat sink 4 is attached to the back surface side of the information display device 1. Shows the configuration. FIG. 6 shows a bird's eye view of the information display apparatus 1 according to the present embodiment. The information display device 1 includes a light emitting display plate 2, a housing 3, a heat sink 4 (not shown in FIG. 6), and a separation fixing member 5, and is attached to a wall surface W 2 on the left side of the roadway R. Also in FIG. 6, as in the first embodiment, the traveling direction of the vehicle (not shown) on the roadway R is the direction from the near side to the back side (arrow V), and on the ground G on the left side of the roadway R. The wall surface provided in is composed of wall surfaces W1 and W3 parallel to the roadway R and a wall surface W2 substantially perpendicular to the roadway R. That is, the information display device 1 is arranged so that the back surface thereof is fixed to the wall surface W2 and information is transmitted to the driver of the vehicle traveling on the road R from the left side.

  FIG. 7 shows a rear view (a) of the information display device 1 according to the present embodiment when viewed through the wall surface W2, a side view (b) viewed from the roadway R side, and a bottom view (c). . As described above, the information display device 1 includes the light emitting display plate 2, the housing 3, the heat sink 4, and the separation fixing member 5. The configurations of the light emitting display panel 2 and the housing 3 are the same as those shown in the first embodiment, but the heat sink 4 is attached to the housing rear surface 33. Note that the materials of the housing 3 and the heat sink 4 may be the same as those shown in the first embodiment.

  The heat sink 4 includes a plate-like base portion 40 that is attached to the housing back surface 33 in a surface contact state, and a large number of convex portions 41 (fins) that are erected on the base portion 40 and arranged in parallel. Each of the convex portions 41 extends in parallel (vertically) with respect to the housing side surfaces 31 and 34.

  The separation fixing member 5 includes a pair of plate-like members 51 and 52, and separates the heat sink 4 from the wall surface W2. In other words, the heat sink 4 is attached to the housing back surface 33 so as to be included in the space S defined by the housing back surface 33, the separation fixing member 5, and the wall surface W2. The plate member 51 includes a housing side fixing surface 511, a separation side surface 512, and a wall side fixing surface 513, and the plate member 52 includes a housing side fixing surface 521, a separation side surface 522, and a wall side fixing surface 523. Hereinafter, since the plate-like members 51 and 52 have a symmetrical shape, the plate-like member 51 will be described in detail, and the same contents shall be applied to the plate-like member 52.

  The housing side fixing surface 511, the separation side surface 512, and the wall side fixing surface 513 may be formed by bending a series of sheet metals, for example. The housing side fixing surface 511 is fixed to the housing back surface 33 by an insertion fixture or the like. The separation side surface 512 is formed so as to be substantially perpendicular to the housing side surface 31 and the housing side fixing surface 511, and the height thereof is larger than the height of the heat sink 4 in the direction perpendicular to the housing back surface 33. That is, the heat sink 4 is disposed between the housing back surface 33 and the wall-side fixing surface 513 (wall surface W2). The wall-side fixing surface 513 is formed so as to be substantially parallel to the housing side surface 31 and the housing-side fixing surface 511, and is fixed to the wall surface W2 by a predetermined fixing tool. The predetermined fixture may be the same as the fixture used when a general information display device is fixed to the wall surface. For example, one or more holes 513a may be provided in a part of the wall-side fixing surface 513, and a protrusion attached to the wall surface W2 may be inserted into the hole 513a.

  By the plate-like members 51 and 52 and the housing back surface 33, open ends 53 and 54 are formed in two opposite directions, that is, in the lower part and the upper part of the separation fixing member 5, respectively. Therefore, the space S defined by the housing back surface 33, the separation fixing member 5 and the wall surface W2 has a tunnel shape.

  Here, when the vehicle passes on the roadway R in the traveling direction V, the traveling wind A generated substantially parallel to the traveling direction V in the vicinity of the roadway R passes between the housing bottom surface 32 and the ground G and reaches the wall surface W2. In this case, it enters the space S from the opening end 53, passes between the convex portions 41 of the heat sink 4, and comes out of the opening end 54 (see FIG. 7B). Therefore, also in the present embodiment, the traveling wind A generated substantially perpendicular to the main surface 30 is used to cool the heat sink 4 attached to the housing back surface 33, and thereby the housing 3 is dissipated. .

  As described above, in the information display device 1 of the present embodiment, the only additional components for the light emitting display plate 2 and the housing 3 are the heat sink 4 and the separation fixing member 5, so that the information display device 1 is significantly increased in size and weight. Therefore, the efficient heat dissipation configuration is realized. Further, since the heat sink 4 is included in the space S with the wall surface W2 having a relatively large heat capacity, the heat dissipation is ensured and the heat dissipation is improved by the traveling wind A being induced in the space S.

  Moreover, the ease of introduction of the information display device 1 is enhanced by the configuration in which the wall-side fixing surfaces 513 and 523 are easily fixed to the wall surface W2. Further, since the wall-side fixing surfaces 513 and 523 of the plate-like members 51 and 52 are arranged in the space defined by the housing back surface 33, the installation area of the information display device 1 does not increase, and Further ease of introduction is ensured. Furthermore, since the extending direction of the convex portion 41 is set along the direction in which the traveling wind A is guided, the area where the heat sink 4 is exposed to the traveling wind A increases and the passage of the traveling wind A is not hindered. The heat dissipation in 4 increases.

In the present embodiment, various modifications can be made.
For example, in the said embodiment, although the separation fixing member 5 showed the structure which consists of the two independent plate-shaped members 51 and 52, these may be integrated. That is, the housing side fixing surfaces 511 and 512 may be continuous, or the wall side fixing surfaces 513 and 523 may be continuous. When the case-side fixing surfaces 511 and 512 are continuous, the heat sink 4 is fixed to the case back surface 33 via the continuous surfaces (511 and 512). ) Is preferably formed of a material with high thermal conductivity (aluminum, aluminum alloy, etc.).

  Moreover, in the said embodiment, although the wall side fixing surfaces 513 and 523 showed the structure arrange | positioned in the space demarcated by the housing | casing back surface 33, as shown in FIG. 523 may be disposed outside the space defined by the housing back surface 33. That is, the wall-side fixing surfaces 513 and 523 may be formed so as to open outward from the separation side surfaces 512 and 522. Thereby, on the premise that the wall surface W2 is wide to some extent, the ease of installation is enhanced. In addition, it is good also as a structure by which one of the wall side fixed surfaces 513 and 523 is arrange | positioned outside the said space, and the other is arrange | positioned in the said space.

  Moreover, in the said embodiment, although the structure which the housing | casing side fixing surfaces 511 and 521 and the housing | casing back surface 33 were fixed was shown, the aspect of fixation is not restricted to this. For example, the plate-like members 51 and 52 do not have the housing-side fixing surfaces 511 and 521 but have separation side surfaces 512 and 522 that are relatively long in the direction perpendicular to the housing back surface 33, and the separation side surfaces 512 and 522 It is good also as a structure fixed to the housing | casing side surfaces 31 and 34, respectively. Alternatively, the separation fixing member 5 may be integrated with the housing back surface 33 or the housing side surfaces 31 and 34, in other words, the separation fixing member 5 is one of the housing back surface 33 or the housing side surfaces 31 and 34. Part.

  In addition, the plate-like members 51 and 52 are preferably symmetrical but may be asymmetric. For example, the information display device 1 is installed such that an angle formed between a direction perpendicular to the main surface 30 and the roadway R (traveling direction V) is a predetermined angle (an angle of 45 degrees or less, preferably 30 degrees or less). In this case, the plate member 51 and the plate member 52 are asymmetric. In this specification, even in such a case, it is assumed that the light emitting display plate 2 is disposed substantially perpendicular to the roadway R, and the traveling wind A is generated in a direction substantially perpendicular to the main surface 30. Shall.

  Moreover, in the said embodiment, although the extension direction of the convex part 41 of the heat sink 4 was a vertical direction, and the opening ends 53 and 54 were provided in the vertical direction, the structure of the housing | casing side surface 34 and wall surface W1 was shown. The vertical and horizontal directions may be reversed on the condition that the space between them is somewhat wide. That is, as shown in FIG. 9, the extending direction of the convex portion 41 of the heat sink 4 is the horizontal direction, the plate-like member 51 is provided near the lower end of the housing back surface 33, and the plate-like member 52 is the housing back surface 33. The opening ends 53 and 54 may be provided in the lateral direction on the side surfaces 31 and 34 of the housing, respectively. In this case, when the vehicle passes on the roadway R, the traveling wind A generated substantially parallel to the roadway traveling direction V in the vicinity of the roadway R passes near the side surface 31 of the casing, hits the wall surface W2, and is spaced from the opening end 53. S enters, passes between the convex portions 41 of the heat sink 4, and comes out from the opening end 54 toward the housing side surface 34 (see FIG. 9C). Alternatively, the traveling wind A passes between the housing side surface 34 and the wall surface W1, hits the wall surface W2, enters the space S from the opening end 54, passes between the convex portions 41 of the heat sink 4, and passes through the opening end 53. There is also a case where it comes off to the case side surface 31 side.

<Fourth Embodiment>
In the said 3rd Embodiment, although the structure which the driving | running | working wind reflected on the wall surface of the back side of the information display apparatus 1 was utilized was shown in this embodiment, the driving | running | working wind is guided to the back side by a duct. Show. The information display device 1 of the present embodiment is provided with a duct 6 with respect to the third information display device 1. The positional relationship among the information display device 1, the roadway R, the ground G, and the wall surfaces W1 to W3 is the same as that of the third embodiment shown in FIG. 6, and the back surface of the information display device 1 is fixed to the wall surface W2. It is arranged to transmit information to the driver of the vehicle traveling on the road R from the left side.

  FIG. 10 shows a front view (a) of the information display device 1 according to the present embodiment as seen through the wall surface W2, a side view (b) seen from the roadway R side, and a bottom view (c). . The information display device 1 includes a light emitting display plate 2, a housing 3, a heat sink 4, a separation fixing member 5, and a duct 6. The configurations of the light emitting display panel 2, the housing 3, the heat sink 4, and the separation fixing member 5 are the same as those shown in the third embodiment.

  The duct 6 extends from the housing bottom surface 32 to the vicinity of the opening end 53 of the housing back surface 33, and has an opening 61 that is substantially an intake port and an opening 62 that is substantially an exhaust port. The opening 61 opens to the main surface 30 side, and the opening 62 opens upward near the opening end 53 of the separation fixing member 5. The bent portion 63 of the duct 6 may be a rectangular joint that is easy to manufacture as shown in the figure, or may have a curved surface so that the air flow is smooth.

  Here, when the vehicle passes on the roadway R in the traveling direction V, the traveling wind A generated in the vicinity of the roadway R substantially parallel to the traveling direction V enters the opening 61 of the duct 6, and the opening 62, the opening end It is guided to the space S through 53. Then, the guided traveling wind A passes between the convex portions 41 of the heat sink 4 and escapes from the opening end 54 (see FIG. 10B).

  Thus, also in the present embodiment, the traveling wind is used to cool the heat sink 4 attached to the housing back surface 33, thereby radiating the housing 3. Therefore, in the information display device 1 of the present embodiment, the heat radiation of the housing 3 can be promoted more effectively using the traveling wind in the configuration of the third embodiment. Moreover, since the opening part 61 of the duct 6 is arrange | positioned under the light emission display board 2, the visibility of the light emission display board 2 is not impaired.

  In the present embodiment, various modifications can be made. For example, although the extending direction of the convex portion 41 of the heat sink 4 is the vertical direction and the opening ends 53 and 54 are provided in the vertical direction, the space between the housing side surface 34 and the wall surface W1 is somewhat wide. On the condition, the vertical and horizontal directions may be reversed. That is, as shown in FIG. 11, the extending direction of the convex portion 41 of the heat sink 4 is the horizontal direction, the plate-like member 51 is provided near the lower end of the housing back surface 33, and the plate-like member 52 is the housing back surface 33. The opening ends 53 and 54 may be provided in the lateral direction on the side surfaces 31 and 34 of the housing, respectively. In this case, when the vehicle passes on the roadway R, the traveling wind A generated substantially parallel to the traveling direction V in the vicinity of the roadway R enters the opening 61 of the duct 6 and passes through the opening 62 and the opening end 53. Guided to space S. And the driving | running | working wind A induced | guided | derived passes between between the convex parts 41 of the heat sink 4, and escapes from the opening end 54 to the housing | casing side surface 34 side (refer FIG.11 (c)).

<Fifth Embodiment>
In the third and fourth embodiments, the configuration in which the heat sink 4 is disposed in the tunnel-like space formed on the back side of the information display device 1 is shown. However, in the present embodiment, the information display device 1 A useful configuration is shown when such a tunnel-like space cannot be formed on the back side. The information display device 1 of the present embodiment can be installed at an arbitrary installation location with respect to the roadway R. However, a heat sink and a duct are formed around the information display device 1 on the back side of the casing and the bottom side of the casing, respectively. It is assumed that there is a space to be used.

  FIG. 12 shows a rear view (a), a side view (b), and a front view (c) of the information display device 1 according to the present embodiment. The information display device 1 includes a light emitting display plate 2, a housing 3, a heat sink 4 and a duct 6. The light emitting display panel 2 and the light emitting display panel 2 shown in the first embodiment have different dimensions, but the basic configuration is the same. That is, the light emitting display panel 2 includes an LED module and is connected to a power supply unit and a control unit (not shown).

  As in the above embodiments, the light emitting display panel 2 is provided on the main surface 30 of the housing 3, and the power supply unit and the control unit are included in the housing 3. The housing 3 forms a hexahedron together with the main surface 30, and has housing side surfaces 31 and 34, a housing bottom surface 32, a housing back surface 33, and a housing top surface 35. In the present embodiment, the housing 3 has double door work doors 36 and 37 on the housing rear surface 33. In the present embodiment, the heat sink 4 is attached below the doors 36 and 37 on the housing rear surface 33.

  The heat sink 4 includes a plate-like base portion 40 that is attached to the housing back surface 33 in a surface contact state, and a large number of convex portions 41 (fins) that are erected on the base portion 40 and arranged in parallel. The base portion 40 is disposed in parallel to the housing bottom surface 32, and the extending direction of each protrusion 41 is a vertical direction (that is, a direction perpendicular to the housing bottom surface 32 and parallel to the housing side surfaces 31 and 34). . The material of the heat sink 4 may be the same as that shown in the first embodiment.

  The duct 6 extends from the housing bottom surface 32 to the vicinity of the lower end of the heat sink 4 on the housing back surface 33, and has an opening 61 that is substantially an intake port and an opening 62 that is substantially an exhaust port. The opening 61 opens to the main surface 30 side, and the opening 62 opens upward in the vicinity of the heat sink 4. The bent portion 63 of the duct 6 may be a rectangular joint that is easy to manufacture as shown in the figure, or may have a curved surface so that the air flow is smooth.

  Here, when a traveling wind A entering the opening 61 is generated when the vehicle passes on the roadway R in the traveling direction V, the traveling wind A passes between the opening 62 and the convex portion 41 and passes through the heat sink 4. (See FIG. 12B). Therefore, also in the present embodiment, the traveling wind is used to cool the heat sink 4 attached to the housing rear surface 33, thereby radiating the housing 3.

  Thus, in the information display device 1 of the present embodiment, the only additional components for the light emitting display plate 2 and the housing 3 are the heat sink 4 and the duct 6, so that the device is not significantly increased in size and weight. The efficient heat dissipation structure is realized. In other words, even when the installation space of each member is restricted as in the case where there is a structure such as a door on the back of the housing, an efficient heat dissipation configuration of the device is realized. Moreover, since the opening part 61 of the duct 6 is arrange | positioned under the light emission display board 2, the visibility of the light emission display board 2 is not impaired. Furthermore, by setting the extending direction of the convex portion 41 to the direction in which the traveling wind A is guided, the area where the heat sink 4 is exposed to the traveling wind A increases and the passage of the traveling wind A is not hindered. Increases heat dissipation.

  In the present embodiment, various modifications can be made. For example, the heat sink 4 may be arranged in the vicinity of the casing side surface 31 on the casing rear surface 33 with the longitudinal direction thereof being the vertical direction. In this case, the extending direction of the convex portion 41 is a lateral direction (that is, a direction perpendicular to the housing side surface 31 and parallel to the housing bottom surface 32). In this case as well, when a traveling wind A entering the opening 61 is generated by passing the vehicle on the roadway R, the traveling wind A passes between the opening 62 and the convex portion 41 to the side of the heat sink 4. Pull out to the side of the housing side surface 34.

<Modification>
Although preferred embodiments of the present invention have been described above, the present invention can be modified into various modes as shown below, for example.

(1) Deformation of heat sink In each of the above-described embodiments and modifications thereof, the heat sink 4 has the convex portion 41 extending in parallel, but each of the convex portions 41 is not continuous. There may be. Further, a heat sink having a dot-like protrusion (sword mountain type) may be employed. In this case, even if the direction of the traveling wind is not constant, the airflow of the traveling wind passes through the projections without being obstructed, so that the heat dissipation of the housing 3 is ensured.

(2) Deformation of duct and heat sink Further, in the fifth embodiment and the modification thereof, the duct is formed from one housing surface of the housing 3 to the housing rear surface 33. It may be formed from two housing surfaces adjacent to the housing back surface 33 and the main surface 30 to the housing back surface 33. For example, as shown in a rear view (a) of FIG. 13, a side view (b) and a bottom view (c) viewed from the roadway R side, air flows from the housing side surface 31 and the housing bottom surface 32 to the housing back surface 33. It is good also as a structure in which a duct is provided. In this case, since the direction of the traveling wind to be guided is two directions, it is preferable to employ the heat sink having the above-described dot-shaped protrusions. Specifically, the heat sink 4 having a large number of dot-like protrusions 42 erected on the plate-like base portion 40 is disposed on the housing back surface 33 and communicates from the housing bottom surface 32 to the housing back surface 33. A duct 7 that communicates from the duct 6 and the casing side surface 31 to the casing back surface 33 is provided. The duct 6 is substantially the same as the duct 6 of the fifth embodiment, has openings 61 and 62, the opening 61 opens on the main surface 30 side, and the opening 62 is with respect to the heat sink 4. Open upward. The duct 7 has an opening 71 that is substantially an intake port and an opening 72 that is substantially an exhaust port. The opening 71 opens to the main surface 30 side, and the opening 72 is located with respect to the heat sink 4. Open in the direction of the housing side surface 34. Thereby, even if the traveling wind in the vicinity of the information display device 1 does not form a certain range of airflow, the traveling wind is guided to the heat sink 4 and heat dissipation of the housing 3 is ensured.

(3) Use of Housing Top Surface In the above embodiments, the configuration in which the heat sink 4 or the duct 6 is provided on the housing bottom surface 32 in the selection of the housing bottom surface 32 or the housing top surface 35 is shown. On the other hand, when the traveling wind A passes through the housing upper surface 35 more than the housing bottom surface 32, the heat sink 4 or the duct 6 may be attached to the housing upper surface 35. For example, when the information display device 1 is installed near the ground G, the heat sink 4 or the duct 6 may be disposed on the upper surface 35 of the housing.

DESCRIPTION OF SYMBOLS 1 Information display apparatus 2 Light emission display board 3 Case 4 Heat sink 5 Separation fixing member 6, 7 Duct 30 Main surface 31, 34 Case side surface 32 Case bottom surface 33 Case back surface 35 Case upper surface 40 Base part 41 Protrusion part 51, 52 Plate-like members 53, 54 Open ends 61, 62, 71, 72 Opening A Running wind R Roadway W1, W2, W3 Wall surface

Claims (20)

An information display device installed on the roadway,
A light emitting display panel disposed substantially perpendicular to the roadway;
A housing provided with the light emitting display board on the main surface;
An information display device comprising: a heat sink attached to the housing and cooled by using traveling wind generated in a direction substantially perpendicular to the main surface.   2. The information display device according to claim 1, wherein the heat sink is attached to a side surface of the casing on the side of the roadway that is adjacent to the main surface when installed on a side of the roadway. Display device.   The information display device according to claim 1, wherein, when installed above the roadway, the heat sink is attached to a bottom surface of a casing adjacent to the main surface. The information display device according to claim 1,
A separation fixing member for fixing the housing rear surface facing the main surface in a state of being opposed to and spaced apart from a predetermined wall surface;
The information display device, wherein the heat sink is attached to the rear surface of the housing so as to be included in a space defined by the rear surface of the housing, the separation fixing member, and the wall surface.   5. The information display device according to claim 4, wherein the separation fixing member is a plate-like member that is erected on the rear surface of the housing with the heat sink interposed therebetween and that forms an open end in two opposite directions. An information display device, wherein the shaped member has a wall-side fixing surface substantially parallel to the rear surface of the housing, and the separation fixing member is fixed to the predetermined wall surface by the wall-side fixing surface.   The information display device according to claim 5, wherein the wall-side fixing surface is disposed in a space defined by the rear surface of the housing. The information display device according to any one of claims 4 to 6,
Extending from the housing back surface and the housing surface adjacent to the main surface to one opening end of the separation fixing member, one opening portion opens to the main surface side, and the other opening portion is the housing back surface. An information display device further comprising a duct opened substantially in parallel with the duct.   The information display device according to claim 7, wherein the one opening is disposed below the main surface, and the other opening is opened above the main surface. The information display device according to claim 1,
The heat sink is attached to the back of the housing facing the main surface;
Extending from a predetermined casing surface adjacent to the rear surface of the casing and the main surface to the rear surface of the casing, one opening is opened substantially parallel to the predetermined casing surface, and the other opening is the heat sink The information display apparatus further provided with the duct opened with respect to.   The information display device according to claim 9, wherein the predetermined housing surface is a housing bottom surface, and the duct extends from the housing bottom surface to a lower portion of the heat sink. An information display device installed on the roadway,
A light-emitting display board;
A housing provided with the light emitting display board on the main surface;
An information display device comprising: a heat sink attached to a side surface of the housing adjacent to the main surface or a bottom surface of the housing.   The information display device according to claim 11, wherein the heat sink is attached to a surface adjacent to a longitudinal direction of the main surface of the housing side surface or the housing bottom surface.   13. The information display device according to claim 11, wherein the heat sink has a base portion attached to a side surface of the housing or the bottom surface of the housing, and a direction standing on the base portion and perpendicular to the main surface. The information display apparatus which has a convex part extended in. An information display device installed on the roadway,
A light-emitting display board;
A housing provided with the light emitting display board on the main surface;
A heat sink attached to the back of the housing facing the main surface;
An information display device comprising: a fixing member that fixes the heat sink to a predetermined wall surface in a state of being opposed to and spaced apart from each other and that forms an opening end in two opposing directions. The information display device according to claim 14,
The separation fixing member is formed of a plate-like member standing on the rear surface of the housing with the heat sink interposed therebetween, and the plate-like member has a wall-side fixing surface substantially parallel to the rear surface of the housing, and the wall The separation fixing member is fixed to the predetermined wall surface by a side fixing surface,
The information display device, wherein the heat sink has a base portion attached to the rear surface of the housing, and a convex portion that stands on the base portion and extends in the opening direction of the two opening ends.   16. The information display device according to claim 15, wherein the wall-side fixing surface is disposed in a space defined by the rear surface of the housing. The information display device according to any one of claims 14 to 16,
Extending from the housing back surface and the housing surface adjacent to the main surface to the opening end of the separation fixing member, one opening portion opens to the main surface side, and the other opening portion is substantially on the housing back surface. An information display device further comprising a duct opened in parallel.   18. The information display device according to claim 17, wherein the one opening is disposed below the main surface, and the other opening is opened above the main surface. An information display device installed on the roadway,
A light-emitting display board;
A housing provided with the light emitting display board on the main surface;
A heat sink attached to the back of the housing facing the main surface;
Extending from a predetermined casing surface adjacent to the rear surface of the casing and the main surface to the rear surface of the casing, one opening is opened substantially parallel to the predetermined casing surface, and the other opening is the heat sink. An information display device comprising a duct opened to the side. The information display device according to claim 19, wherein the predetermined housing surface is a housing bottom surface, the duct extends from the housing bottom surface to a lower portion of the heat sink, and the heat sink is attached to the back surface of the housing. An information display device comprising: a base portion; and a convex portion standing on the base portion and extending in an opening direction of the other opening portion of the duct.

Images