JP2006113144A - Display apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display apparatus for outdoor use which is superior in maintainability and waterproof property and which is high in reliability. <P>SOLUTION: The display apparatus is provided with an openable and closable front frame 22 on whose front face display units are arranged. Most of the rainwater F2, F3, flowing through the gap 41 between the front frame 22 and the body 22, is caught by a body rain gutter 24 and discharged outside. The rainwater F8 overflowing the body rain gutter 24 is prevented from entering inside by a packing 252 abutting against the body rain gutter 24 in the state of the front frame 22 being closed. Rainwater, leaking from the packing 252 flows into a front frame rain gutter 251 and is discharged to the outside. Further, even if the rainwater overflows the front frame rain gutter 251, overflowing rainwater F9 runs down on a side deeper than electronic parts and the electronic parts will not become wet. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a display device suitable for outdoor use, and more particularly to an outdoor display device having a waterproof function.

  Display boards that display letters, symbols, and numbers in various situations are used. When the display panel is used outdoors, there are cases where it is used in rainy weather. In the case of an electric / electronic display device, a display control substrate and wiring are accommodated in the housing, and these must be maintained without getting wet. Therefore, waterproof performance is required.

From such a viewpoint, Patent Document 1 discloses an outdoor display device having a waterproof function.
JP 2002-40966 A

The display device disclosed in Patent Document 1 is configured with a display unit fixed to the front surface of the device housing, and the inside of the housing cannot be opened and closed, making it difficult to maintain the device.
Here, in order to improve maintainability, it is conceivable to provide an opening / closing door on the front or back of the chassis. Equipment and circuits that are present will get wet, reducing the reliability of the equipment.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a display device that is excellent in maintainability and prevents intrusion of rainwater and has excellent reliability.

  To achieve the above object, the display device of the present invention is a display device having a display unit on the front surface of the device housing, and the device housing houses a display control circuit unit for driving and controlling the display unit. And a front frame that is attached to the front portion of the main body so as to be openable and closable and on which the display unit is mounted, and the front frame is closed on one of the main body and the front frame. A first rain gutter is provided at the upper end of the joint between the main body and the front frame to receive rainwater flowing in from the joint between the main body and the front frame. The other side of the frame receives rainwater flowing through the first rain gutter from the joint between the main body and the front frame, which is located below the first gutter while the front frame is closed. That there are two rain gutters And butterflies.

  According to this configuration, the rain gutter has a double structure in which the main body and the front frame are respectively disposed, and rain water can be more effectively prevented from entering the main body.

  For example, an electrical component that is connected to the display unit and connected to the display control circuit unit is disposed on the back surface of the front frame. In this case, the second rain gutter is disposed on the back surface of the front frame and above the electrical component, and extends deeper than the electrical component in the state where the front frame is closed. According to such a configuration, since the second rain gutter extends deeper in the main body than the electrical component in the state where the front frame is closed, even if rain water overflows from the second gutter, There is no rain on electrical components.

  It is preferable that a sealant interposed between the first rain gutter and the back surface of the front frame in a state where the front frame is closed is disposed on either the main body or the front frame. This sealing material can more reliably prevent rainwater from entering the inside of the main body.

  For example, the first rain gutter is provided at a position and shape that directly receives rain water flowing in from a joint portion between the main body and the front frame, and the second gutter is more than the first gutter. It has a large size and is provided in a position and shape for receiving rainwater overflowing the first rain gutter. According to such a configuration, it is possible to more effectively prevent rainwater from entering by effectively using two rain gutters.

  For example, the main body includes a rectangular housing whose front surface is opened, and a front upper end portion of the housing houses a support portion that supports the front frame so that the front frame can be opened and closed by bending a top plate. A housing part and the first rain gutter are configured, and an upper end portion of the front frame includes a cover part that covers the housing part and the first rain gutter. According to this configuration, since the first rain gutter is formed by bending the top plate of the main body, the main gutter and the first rain gutter are compared with the case where the rain gutter is configured with separate parts. Rainwater does not enter from between, and rainwater can be effectively prevented from entering. Further, by providing the cover portion, it is possible to more effectively prevent rainwater from entering the apparatus.

  For example, the display unit includes a plurality of light emitting element units equipped with light emitting elements. In this case, each light emitting element unit is preferably provided with a ridge that projects forward and downward at the top thereof, shields the light emitting element from sunlight, and discharges rainwater forward. According to such a configuration, even when the display device is exposed to direct sunlight, the display is easy to see, and rainwater can be prevented from entering the device body.

  According to the present invention, the front frame can be opened and closed, and is excellent in maintainability. In addition, since rain gutters are provided on the main body and the front frame, it is possible to reliably prevent rain water from entering the interior.

A display device according to an embodiment of the present invention will be described below with reference to the drawings.
First, an external configuration of a display device according to the embodiment will be described with reference to FIG.

  A plurality of display devices are provided on the front surface (front surface) of the housing 12 as shown in FIG. 1 (a) in front (front), (b) in plane (upper surface), (c) in lower surface, and (d) in side view. A light emitting element unit 13 equipped with a light emitting element 13b (shown in FIG. 2) such as a light emitting diode is provided with a display unit arranged in a matrix. Displays symbols and numbers.

  Each light emitting element unit 13 includes a flange portion (projecting portion) 13a inclined forward and downward as shown in an enlarged view in FIG. The eaves part 13a shields the light emitting element 13b from sunlight, and discharges rainwater forward when it rains. Each light emitting element unit 13 is fixed by screws 221 from the back of the front frame 22 constituting the housing 12. Further, the wiring 13c of the light emitting element 13b is guided into the housing 12 through a minute through hole 222 formed in the front frame 22, and is connected to a relay substrate 224 described later disposed on the back surface (inner surface) of the front frame 22. Is done. The through hole 222 is filled with a member 223 that prevents inflow of rainwater such as elastic resin or silicone grease.

Next, the structure of the housing | casing 12 is demonstrated with reference to Fig.3 (a) and (b).
3 (a) and 3 (b) correspond to a cross-sectional view taken along line 3-3 in FIG. 1 (b), FIG. 3 (a) shows a state in which the front frame 22 is closed, and FIG. 3 (b) shows a front view. It is a figure in the state where frame 22 was opened. FIG. 4 is an enlarged view of the opening / closing mechanism.

As shown in FIG. 3, the housing 12 includes a main body 21 and a front frame 22.
The main body 21 has a substantially rectangular (or cuboid) shape with an opening formed on the front surface, and a display control circuit for displaying an arbitrary character or the like by driving the light emitting element unit 13 to blink is formed therein. A control board 211 is arranged. The display control board 211 is disposed at a relatively high position in the main body 21.

The front frame 22 is attached to the front upper end portion of the main body 21 so as to be openable and closable with respect to the main body 21 via a hinge mechanism (hinge) 31 shown enlarged in FIG. 4, and is in the closed state shown in FIG. Then, the opening of the main body 21 is closed, and in the open state shown in FIG. 3B, the opening of the main body 21 is opened.
A relay substrate 224 is disposed on the inner surface (back surface) of the front frame 22. The relay substrate 224 is connected to the lead wire 13c of each light emitting element 13b, and is connected to the display control substrate 211 in the main body 21 via the lead wire (signal line, power supply line) 212. Note that wireless communication or the like may be used as means for connecting the relay board 224 and the display control board 211.

  Next, referring to FIG. 4, a hinge mechanism 31 that supports the front frame 22 on the main body 21 so as to be opened and closed and a waterproof mechanism that prevents rainwater from entering the inside of the apparatus will be described.

  FIG. 4 is a configuration diagram of the hinge mechanism 31, where the solid line is a closed state of the front frame 22 and the two-dot chain line is an open state.

  As shown in FIG. 4, the front end of the top plate of the main body 21 forms a rain gutter 24 as a first gutter that opens upward (hereinafter referred to as a main gutter for distinction). Or bent into a U-shape. On the other hand, the front frame 22 is composed of a flat plate having a size that closes the opening of the main body 21.

  The main body gutter 24 is provided over the entire width direction of the main body 21 (the left-right direction in FIG. 1A), and from the both end portions in the width direction of the main body 21 toward the lower side thereof. The main body 21 is also provided continuously across the entire width direction of the main body 21 (the left-right direction in FIG. 1A). That is, the main body gutter 24 is continuously provided in the main body 21 over the perimeter (refer Fig.1 (a)). More specifically, the front end portions of the side plates and the bottom plate of the main body 21 are bent into a J-shape or U-shape in the same manner as the front end portion of the top plate of the main body 21 so that the main body rain gutter 24 has both end portions in the width direction of the main body 21 1 (a left and right end portions in FIG. 1 (a)) and continuously downward over the entire area in the vertical direction, and also in the lower portion of the main body 21 in the width direction of the main body 21 (left and right in FIG. 1 (a)). Direction) continuously provided over the entire area. Note that the main body gutter 24 opens to the side of the main body 21 at a portion extending in the vertical direction from both ends in the width direction of the main body 21, and extends in the width direction of the main body 21 at the lower portion of the main body 21. The existing part opens below the main body 21.

  A hinge mechanism 31 is fixed to the bottom wall of the main body gutter 24 (the bottom wall of the upper portion of the main body 21 extending in the width direction of the main body 21) by welding or the like. The frame 22 is attached so as to be openable and closable (turnable) within a certain angle range with the hinge pin 27 of the hinge mechanism 31 as the center of rotation. A plurality of hinge mechanisms 31 are provided in the width direction of the main body 21 (left and right direction in FIG. 1A), and the front frame 22 is stably attached to the main body 21 via these hinge mechanisms 31. It has been.

  On the other hand, a packing 252 that is in contact with the front surface of the main body rain gutter 24 is fixed at a position facing the front end of the main body rain gutter 24 on the inner surface of the front frame 22 in a state where the front frame 22 is closed. The packing 252 is provided continuously over the entire circumference of the front frame 22 corresponding to the main body gutter 24. The packing 252 is made of an elastic body or foamed resin, and seals between the front frame 22 and the main body gutter 24.

  A front frame gutter 251 is formed on the inner surface of the front frame 22 as a second gutter that extends to the back of the main body when the front frame 22 is closed. The front frame gutter 251 is erected on the inner surface of the front frame 22, and is located below the main gutter 24 located at the top of the main body and from the main gutter 24 when the front frame 22 is closed. Also extends to the back side of the main body, extends further to the back than the electronic components (relay substrate 224, etc.) fixed to the inner surface of the front frame 22, and further bends upward to extend upward. An open gutter is formed. The front frame gutter 251 is provided across the entire width direction of the front frame 22 (left and right direction in FIG. 1A) corresponding to the main body gutter 24, and from both ends in the width direction of the front frame 22. It is continuously provided over the entire vertical direction toward the lower side (see FIG. 1A). That is, the front frame gutter 251 is provided in a U shape along the outer periphery of the inner surface of the front frame 22. The front frame gutter 251 opens to the side of the front frame 22 at a portion extending vertically from both ends of the front frame 22 in the width direction. Further, the front frame gutter 251 has a tip length (FIG. 4) so as not to hinder the opening and closing operation of the front frame 22 in a portion extending vertically from both ends of the front frame 22 in the width direction. The length of the portion corresponding to the portion that is bent upward and extends is set short.

  In addition, a cover portion 254 that covers the hinge mechanism 31 is provided at the upper end portion of the front frame 22. The cover part 254 reaches the immediate vicinity of the front end bent part of the top plate of the main body 21, and reduces the inflow of rainwater into the main body rain gutter 24. The cover portion 254 is provided over the entire width direction of the front frame 22 (left and right direction in FIG. 1A) corresponding to the main body gutter 24, and from the both ends of the front frame 22 in the width direction. It is continuously provided over the entire vertical direction toward the lower side.

  At the lower end of the housing 12, a packing 32 for sealing the front frame 22 in a closed state and a fixing member 33 such as a screw for fixing are arranged.

Next, the operation of the display device having the above configuration will be described.
First, at the normal time, the front frame 22 is closed. Each light emitting element unit 13 is turned on or off by a signal supplied from the display control board 211 to each light emitting element unit 13 via the relay board 224, and an arbitrary character is displayed as the entire display unit. At this time, the display of each light emitting element unit 13 is shielded from sunlight by the eaves part 13a and is easy to see.

  On the other hand, at the time of maintenance or installation of the display device, the fixing member 33 is released as necessary, and the front frame 22 is rotated around the support shaft 27 and released. Therefore, the work is easy.

Next, the waterproof function in rainy weather will be described with reference to FIG.
Most of the rainwater that falls on the display device flows and flows down on the surface like the flow F1, but some of the rainwater F2 and F3 flows into the display device from the gap 41 between the joint portion of the main body 21 and the front frame 22. Infiltrate. Most of the rainwater that has entered is captured by the main body rain gutter 24, flows through the main body rain gutter 24 from the upper end of the main body 21 through the both ends in the width direction thereof, and is discharged to the outside.

  On the other hand, rainwater F8 overflowing from the main body gutter 24 is prevented from entering the interior by the packing 252 that abuts the main body gutter 24 with the front frame 22 closed. Further, rainwater leaking from the packing 252 flows into the front frame gutter 251, flows through the front frame gutter 251, from the upper end portion of the front frame 22, through both ends in the width direction thereof, to the lower side thereof and is discharged to the outside.

  Furthermore, even if rainwater overflows from the front frame gutter 251, the front frame gutter 251 extends deeper than the relay board 224, so the overflowing rainwater F9 flows down from the electronic components, Electronic components never get wet.

  As described above, according to the embodiment of the present invention, the inflow of rainwater into the display device itself is suppressed, and the inflowing rainwater is collected and discharged by the first main body gutter 24, and further the main body gutter. The rainwater that could not be collected at 24 is prevented from entering by the packing 252. Furthermore, the rainwater that has passed through the packing 252 is collected and discharged into the front frame gutter 251 that is the second gutter. Furthermore, since the rainwater overflowing the front frame gutter 251 does not directly wet the circuit components, the reliability of the apparatus is highly maintained. Moreover, since the main body gutter 24 is formed by bending the top plate of the main body 21, it is possible to effectively suppress the inflow of rainwater into the display device as compared with the case where separate parts are used. Can be reliable. Further, since the front frame 22 includes the cover portion 254, the inflow of rainwater into the display device can be effectively suppressed.

  In addition, because of the structure of the rainwater flow path, the main body gutter 24, the packing 252 and the front frame gutter 251 are sequentially passed, so that the inflowing rainwater can be collected almost certainly and discharged outside the apparatus. .

  It should be noted that rainwater that has fallen or has flowed down onto the light emitting element unit 13 exposed to the outside is discharged toward the outside of the display device relatively well in accordance with the shape of the flange 13a. Accordingly, rainwater that falls on or flows down the light emitting element unit 13 does not enter the display device.

  As described above, the display device according to the present embodiment can be easily installed and maintained by an opening / closing mechanism, and can suppress the inflow of rainwater into the rainwater main body during rainy weather. High reliability and safety.

  Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment. For example, the configuration of each gutter and the configuration of the packing can be arbitrarily changed. Further, one or more front frame gutters may be added below the front frame gutter 251. In this case, it is necessary to extend as far as the lower gutter so that the lower gutter can receive the overflowing rainwater from the upper gutter.

  Further, for example, a protrusion 51 shown by a broken line in FIG. 5 may be arranged to prevent dripping so that dripping occurs in the last rain gutter and rainwater is not applied to the electronic device.

In addition, the present invention is not limited to a display device, and may be used outdoors (under rainy weather), and can be widely applied to devices that are required to open and close partly because of maintenance or the like.
In addition, the configuration of the hinge mechanism and the configuration of the display unit described in the above embodiment are examples, and any other configuration can be used. For example, the display unit may be an EL panel or a liquid crystal display element with a backlight. The hinge mechanism 31 may be a swing type that does not use a rotation shaft.

1 is an external view of a display device according to an embodiment of the present invention. It is a figure which shows the structural example of the display element which comprises a display part. It is a figure which shows the internal structure of a housing | casing, and is a figure at the time of closing and opening. It is an enlarged view of a hinge mechanism part. It is a figure explaining the flow of rainwater.

Explanation of symbols

12 Housing 13 Light-Emitting Element Unit 21 Main Body 22 Front Frame

Claims (6)

A display device comprising a display unit on the front surface of the device housing,
The device housing has a main body that houses a display control circuit unit that drives and controls the display unit, and a front frame that is attached to the front of the main body so as to be openable and closable and to which the display unit is mounted. And
One of the main body and the front frame has rainwater flowing from the joint portion between the main body and the front frame located at the upper end portion of the joint portion between the main body and the front frame when the front frame is closed. A first gutter is received,
The other of the main body or the front frame flows into the other side of the front gutter through the first gutter from the junction between the main body and the front frame, located below the first gutter. And a second rain gutter receiving the rain water. An electrical component connected to the display control circuit unit and connected to the display unit is disposed on the back surface of the front frame,
The second gutter is disposed on the back surface of the front frame and above the electrical component, and extends deeper in the body than the electrical component in a state where the front frame is closed.
The display device according to claim 1. Either one of the main body and the front frame includes a sealing material interposed between the first rain gutter and the back surface of the front frame in a state where the front frame is closed.
The display device according to claim 1 or 2. The first rain gutter is provided at a position and shape that directly receives rain water flowing from a joint between the main body and the front frame,
The second gutter has a size larger than that of the first gutter, and is provided in a position and a shape for receiving rainwater overflowing the first gutter.
The display device according to claim 1, wherein the display device is a display device. The main body includes a rectangular housing whose front surface is opened, and a front upper end portion of the housing houses a support portion that supports the front frame so that the front frame can be opened and closed by bending a top plate. And the first gutter.
The upper end portion of the front frame includes a cover portion that covers the housing portion and the first rain gutter.
The display device according to claim 1, wherein the display device is a display device. The display unit includes a plurality of light emitting element units equipped with light emitting elements,
6. The light emitting device unit according to claim 1, wherein each light emitting device unit includes a ridge that protrudes forward and downward at an upper portion thereof, shields the light emitting device from sunlight, and discharges rainwater forward. The display device according to item.

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