JP6325591B2 - Enclosure, enclosure for electrical equipment, enclosure for power supply and enclosure for traffic terminal - Google Patents

Description

  The present invention relates to a housing, a housing for electrical equipment, a housing for a power supply device, and a housing for a traffic terminal device.

  Generally, a traffic signal controller has a drip-proof structure so that rain does not enter inside even in stormy weather. As such a technology, for example, in a traffic signal controller housing having a door that opens and closes the opening of the housing, a plurality of gaps and groove spaces composed of a plurality of mutually opposed ribs are externally provided. There is a technique for improving waterproofness by reducing the intrusion pressure such as wind and rain from the air and preventing intrusion of rainwater or the like into the housing (for example, see Patent Document 1).

Japanese Utility Model Publication No. 3-71688

  By the way, in recent years, the frequency of large-scale disasters such as floods and tsunamis has increased, and the scale of disasters tends to increase. Transportation infrastructure plays the most important role in disaster recovery activities, and it does not stop functioning even if those disasters occur, or it is required to recover quickly even if it stops. As mentioned above, traffic signal controllers often adopt a drip-proof structure in consideration of stormy weather, etc., but they are not expected to be submerged by a large-scale flood or tsunami, and countermeasure technology is required. It was.

  This invention is made | formed in view of the above situations, Comprising: It is providing the technique which solves the said subject.

The present invention is a traffic signal controller housing comprising a housing body having a rectangular parallelepiped outer shape and a bottom surface communicating for wiring, provided on a predetermined surface other than the bottom surface of the housing body. A door that can be opened and closed freely, a frame-shaped packing provided near the outer periphery of the inner surface of the door, and an opening frame formed in a rib shape so as to surround the opening on the front side of the housing body And a determination that the water level reached when water enters the interior of the housing main body is determined at a position lower than the position where the electric circuit device provided in the housing main body is disposed. And the opening frame is pressed against the packing in a state where the door is closed, and a sealed state is secured except for the communication structure of the bottom surface, and a plurality of determination means are provided at different heights. is, the determination means a detection sensor for detecting that the wet water For example, when submerged, the determining means provided in lower flooded height position is changed, the determination means provided at a higher position than the submerged height does not change.

  According to the present invention, even in a situation where a casing in which devices such as a power supply device and a control device are disposed inside the casing is submerged, it is possible to reduce damage to the functions of these devices.

It is a perspective view of the housing | casing of the signal controller based on this embodiment. It is a 6th page figure of the case of a signal controller concerning this embodiment. It is a perspective view of a case body concerning this embodiment. It is the rear view and back perspective view of a main door based on this embodiment. It is the figure which showed the state which opened the small window door provided in the main door based on this embodiment. It is a functional block diagram of the housing | casing based on this embodiment.

  Next, modes for carrying out the present invention (hereinafter, simply referred to as “embodiments”) will be specifically described with reference to the drawings.

  FIG. 1 is a perspective view showing a housing 10 of the signal controller 1 according to the present embodiment. 2 shows a six-sided view of the housing 10 of the signal controller 1. FIG. 2 (a) is a front view, FIG. 2 (b) is a left side view, and FIG. 2 (c) is a right side view. 2D is a plan view, FIG. 2E is a bottom view, and FIG. 2F is a rear view. FIG. 3 is a perspective view of the housing body 20 with the main door 40 removed from the housing 10 (the state shown in FIG. 1). FIG. 4 shows the main door 40, and in particular, FIG. 4 (a) is a rear view, and FIG. 4 (b) is a rear perspective view.

  As shown in the figure, the housing 10 includes a housing body 20 and a main door 40 that are substantially box-shaped (vertical rectangular parallelepiped) made of highly corrosion-resistant stainless steel. The front surface of the housing body 20 has a substantially entire opening (front opening 21), and is opened and closed by the main door 40.

  The main door 40 is attached to the front side of the housing body 20 by a hinge 62 provided on the right side so as to be freely opened and closed. Here, two hinges 62 are provided on the upper and lower sides. The main door 40 is fixed to the housing body 20 by a main door lock 60 provided on the left side surface. Here, three locks 60 for main doors are provided on the upper, middle and lower sides. In the state where the main door 40 is closed and fixed with the lock 60 for the main door, the hermetic structure described later secures a tightly sealed state at the main door 40 portion, and can prevent water from entering the inside even when submerged. It has become.

  A front frame 23 having a predetermined width is provided at the outer edge portion of the front-side opening (front opening 21) of the housing body 20. An outer peripheral rib 24 protruding forward by a predetermined length is formed around the front opening 21 at the inner edge of the front opening 21, that is, the inner edge of the front frame 23.

  In addition, the bottom portion 22 of the housing body 20 has a bottom portion for routing various wirings (signal cable 72, power supply cable 81, etc.) to a control board 70 and a distribution board 80 disposed inside as will be described later with reference to FIG. An opening 25 (communication structure) is formed.

  The main door 40 includes a door body 41 and a decorative plate 42 attached to the front side of the door body 41. The decorative plate 42 is provided with a badge mounting hole 48a for mounting a badge or the like, and a nameplate mounting hole 48b for mounting a plate.

  As shown in FIG. 4, the door main body 41 has a lid shape, and a frame-shaped packing 44 is attached to the outer peripheral edge on the inner side (back side). Reinforcing ribs 47 are attached along the inner periphery of the packing 44. The reinforcing rib 47 is provided so as to be fitted into the outer peripheral rib 24 of the housing body 20, that is, the front opening 21 when the main door 40 is closed.

  In a state where the main door 40 is closed, the packing 44 of the door body 41 and the outer peripheral rib 24 of the housing body 20 are opposed to each other, and the main door lock 60 is fixed. The packing 44 and the outer peripheral rib 24 are firmly pressed against each other. That is, since the outer peripheral rib 24 is rib-shaped, it is pressed against the packing 44 so as to bite into the packing 44. A very strong pressure welding can be realized as compared with the structure in which contact is made on the surface.

  Further, the packing 44 is not configured to cover the outer edge of the inner surface (rear surface) of the door main body 41, and the outer portion of the packing 44 is located slightly inside from the outer edge. That is, a portion not covered with the packing 44 is provided. In a portion located outside the packing 44, a decorative plate mounting portion 49 having a screw structure is provided, and the decorative plate 42 is attached. Here, the decorative plate 42 is attached by a total of four decorative plate attachment portions 49 of the two upper and lower portions. Since there is a decorative plate mounting portion 49 on the outside of the packing 44, there is no effect on the sealing structure between the packing 44 and the outer peripheral rib 24 when the decorative plate 42 is mounted. Thus, the waterproofing process is not required, and the decorative plate 42 can be easily attached.

  Further, the door main body 41 is provided with a small window door 50 that can be opened and closed and an engaging portion 53 that holds the small window door 50 in a closed state. A small window 46 is formed in the decorative plate 42 so that the small window door 50 can be freely opened and closed. As shown in FIG. 5, the small window door 50 has the same structure as the sealing structure of the packing 44 and the outer peripheral rib 24 described above.

  That is, a small window opening 54 is formed in the door main body 41, and a small window outer peripheral rib 55 having a predetermined height is formed along the edge. On the other hand, the small window door inner surface 51 of the small window door 50 is provided with a frame-shaped small window packing 56. The small window packing 56 is provided at a position corresponding to the small window outer peripheral rib 55, that is, so as to face in a closed state. In a state in which the small window door 50 is closed and the lock 52 is locked and fixed to the locking portion 53, the small window outer peripheral rib 55 having a rib shape comes into pressure contact with the small window packing 56. As a result, a strong sealing structure is realized in the small window door 50 and the small window opening 54. Further, since the lock 52 is provided outside the small window packing 56 and does not affect the sealing structure, it is not necessary to attach the waterproof lock 52.

  Note that the small window door 50 is smaller than the door main body 41 and is not deformed, so that a structure corresponding to the reinforcing rib 47 is not provided. Naturally, a structure corresponding to the reinforcing rib 47 may be provided.

  By adopting the above-described structure, even when the signal controller 1 is submerged, a sufficient sealed structure can be realized except for the bottom portion 22. Therefore, even when water enters the inside of the housing 10 from the bottom 22, since the inside is filled with air, the amount of entry is small, and the control board 70 and the like attached to the inside (FIG. 6). (See below) can be prevented from getting wet. As a result of the simulation, it is possible to ensure a sufficiently sealed state under the conditions that the outer shape of the housing is 800 mm in height / 300 mm in width / 230 mm in depth and the upper surface of the housing 10 has a thickness of 2 mm (stainless steel). Confirmed. Further, when there is a concern about deformation due to water pressure, it can be sufficiently handled by reinforcing the casing 10 (the casing body 20).

  Here, a functional block diagram schematically showing the signal controller 1 is shown in FIG. The control board 70 and the switchboard 80 are attached as an electrical component (electric circuit device) inside the housing 10, and a corresponding predetermined traffic signal is controlled. Here, the switchboard 80 is disposed below the control board 70. Further, a signal cable 72 is connected to the transmission portion 71 of the control board 70 and is connected to an external signal device or a control center via a bottom opening 25 formed in the bottom portion 22. Similarly, a power cable 81 is connected to the switchboard 80 and connected to an external power supply through the bottom opening 25.

  As described above, the sealed structure of the casing 10 excluding the bottom opening 25 prevents the air sealed inside the casing 10 from entering the water from the bottom opening 25. Even when submerged in about 2 m, water enters from the bottom opening 25 to a position where the water pressure is balanced, but there is little possibility that the control board 70 and the switchboard 80 get wet with water. However, when the water around the casing 10 moves in a submerged body and submerges for more than 2 m, the water surface entering the casing 10 moves, and the water level rises to the position of the switchboard 80 or the like. There is also a fear.

  Therefore, in order to minimize water intrusion into the inside of the housing 10, a cylinder 90 is attached to the housing body 20 for blowing out air when wet. Here, the cylinder 90 is attached 5 cm below the switchboard 80 which is an electrical component arranged on the lowermost side.

  The cylinder 90 is provided with a cylinder main body 91 and an operation detection sensor 92 for detecting the operation thereof. The cylinder main body 91 has a structure that ejects air when wet. When the jetted air is filled into the housing 10, the water that has entered from the bottom 22 is pushed out. For such a structure, a known technique (for example, a technique disclosed in Japanese Patent Application Laid-Open No. 2011-68297) employed in an emergency boat or a life jacket can be used. In addition, although it does not specifically limit as air to eject, Gas of the property which is hard to melt | dissolve in water, such as oxygen and helium, is preferable.

  The operation detection sensor 92 detects that the cylinder main body 91 has been operated, that is, that air has been ejected, and notifies the transmission unit 71 of the control board 70. The transmission unit 71 notifies the control center or the like via the signal cable 72 or the like. Since the signal controller 1 is controlled by the control center, the control center can detect the operation of the cylinder 90 so as to know which signal controller 1 is under water. Further, if the cylinder 90 is not operating, it can be determined that the control board 70 or the like is not watered since the casing 10 has a sealed structure. As a result, it becomes easy to specify the signal controller 1 to be repaired and to set the priority in the recovery work (restoration work) after the disaster.

  The plurality of cylinders 90 may be attached at different heights. In that case, if it is possible to confirm which height of the cylinder 90 has been operated, the priority order can be set in more detail in the recovery operation. That is, for example, when three cylinders 90 are attached, when the lowest cylinder 90 is operated, it is determined that the amount of water entering is small, the restoration priority is lowered, and the upper cylinder 90 is operated. In this case, it can be determined that the possibility of failure is high and the priority of the replacement target is high. In particular, the signal controller 1 is manufactured according to a so-called custom order because the control contents differ depending on the place where the signal device is installed. Therefore, it takes time to manufacture. Therefore, if the signal controller 1 having a high priority such as repair / replacement can be identified as in this embodiment, the recovery work in the disaster area can be shortened.

  The present invention has been described based on the embodiments. This embodiment is an exemplification, and it will be understood by those skilled in the art that various modifications can be made to the combination of each component and processing process, and such modifications are also within the scope of the present invention. For example, in the above embodiment, the main door 40 is provided on the front side of the housing 10 so as to be freely opened and closed, and the sealed state is firmly secured. However, doors may be provided on other surfaces (side surfaces, back surface, and top surface), and even in that case, the above-described sealing structure is applied to ensure a sealed state.

1 Signal Controller 10 Case 20 Case Body 21 Front Opening 22 Bottom (Bottom)
23 Front frame 24 Outer peripheral rib 25 Bottom opening 40 Main door 41 Door body 42 Decorative plate 44 Packing 46 Small window 47 Reinforcement rib 48a Insignia mounting hole 48b Name plate mounting hole 49 Decorative plate mounting part 50 Small window door 51 Inner surface of small window door 52 Lock 53 Locking portion 54 Small window opening 55 Small window outer rib 56 Small window packing 60 Main door lock 62 Hinge 70 Control board 71 Transmission unit 72 Signal cable 80 Power distribution panel 81 Power cable 90 Cylinder 91 Cylinder main body 92 Motion detection sensor

Claims (1)

A traffic signal controller housing comprising a housing body having a rectangular parallelepiped outer shape and a bottom surface communicating for wiring,
A door that can freely open and close an opening provided on a predetermined surface other than the bottom surface of the housing body;
A frame-shaped packing provided near the outer periphery of the inner surface side of the door;
An opening frame formed in a rib shape so as to surround the opening on the front side of the housing body ;
A discriminating means which is attached at a position lower than a position where an electric circuit device provided in the housing main body is disposed, and is capable of discriminating a water level reached when water enters the inside of the housing main body; ,
Have
In the state where the door is closed, the opening frame is pressed against the packing, and a sealed state is secured except for the communication structure of the bottom surface ,
The discriminating means is provided with a plurality of different heights, and includes a detection sensor for detecting the wetness of water,
The case in which, when submerged, the discrimination means provided at a position lower than the flooded height changes, and the discrimination means provided at a position higher than the flooded height does not change .

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