JP-2026075035-A - Traffic signal controller

Abstract

[Problem] To provide a traffic signal controller that is less likely to have its power supply to the entire device interrupted even if water enters the lower part of the housing. [Solution] The traffic signal controller 100 comprises a control board 20 for controlling the signal lamps 6 of the traffic signal, a power supply device 50 for supplying power to the control board 20, a power receiving device 170 for connecting either a commercial power supply S1 or an external power supply S2 to the power supply device 50, and a housing 11 that houses the control board 20, the power supply device 50, and the power receiving device 170. The power receiving device 170 is located in a region above the central height CT in the height direction of the housing 11, and is positioned at a height equal to or greater than that of the control board 20 or the power supply device 50. [Selection Diagram] Figure 2

Inventors

• 石山 一誠

Assignees

• 日本信号株式会社

Dates

Publication Date

20260507

Application Date

20250428

Claims (2)

1. A control board that controls the signal lights of a traffic signal, A power supply device that supplies power to the control board, A power receiving device having an inlet for an external power supply, which connects either the commercial power supply or the external power supply to the power supply device, A power switch is provided between the power receiving device and the input section of the commercial power supply, A lamp switch that operates under the control of the control board and drives the signal lamp to a state of being turned on or off, An external terminal board is provided between the external device and the control board, A housing that houses the control board, the power supply unit, the power receiving unit, the power switch, the light switch, and the external line terminal board, Equipped with, The power receiving device is positioned at a height equal to or greater than that of the control board or the power supply unit, in a region above the center in the height direction of the housing, with respect to the lower end. The power switch is positioned lower than the control board, the power supply unit, and the power receiving device, with respect to its lower end. The external terminal board is positioned lower than the control board, the power supply unit, the power receiving unit, and the light switch, with respect to its lower end. The external terminal board and the power switch are located in the lower end region of the housing. Traffic signal controller.
2. Wiring is provided in the gap between the upper end of the power receiving device and the upper wall of the housing. The traffic signal controller according to claim 1.

Description

This invention relates to a traffic signal controller for controlling traffic signals, and more particularly to a traffic signal controller that operates by receiving power from either a commercial power source or an external power source. A traffic signal controller is known to be powered by power supplied from either a first power supply path corresponding to commercial power or a second power supply path connected to a terminal for an external power supply, and comprises a control unit that controls the signal lights of a traffic signal, a manual changeover switch that connects either the first or second power supply path to the control unit, and a housing that houses these components. In this controller, the terminal and manual changeover switch are located below the center of the housing in the height direction, and the control unit is located above the terminal and manual changeover switch (Patent Document 1). As with the traffic signal controller described in Patent Document 1, if the terminal section and manual changeover switch are located below the center of the housing in the height direction and below the control unit, if water ingress occurs in the lower part of the signal controller housing due to flooding or other reasons, the circuit section including the terminal section and manual changeover switch may be damaged, potentially cutting off the power supply to the entire signal controller, including the control unit, resulting in significant damage from the outset. Japanese Patent Publication No. 2015-122024 This invention has been made in view of the above-mentioned background art, and aims to provide a traffic signal controller that is less likely to have its power supply to the entire device interrupted even if water enters the lower part of the housing. To achieve the above objective, the traffic signal controller according to the present invention comprises a control board for controlling the signal lamps of a traffic signal, a power supply device for supplying power to the control board, a power receiving device for connecting either a commercial power supply or an external power supply to the power supply device, and a housing for housing the control board, power supply device, and power receiving device. The power receiving device is positioned in a region above the center in the height direction of the housing, at a height equal to or greater than that of the control board or power supply device. In the above-described traffic signal controller, the power receiving unit is located above the center of the housing in the height direction, at a height equal to or greater than that of the control board or power supply unit. Therefore, even if water floods the lower part of the traffic signal controller housing, the power supply to the entire device will not be interrupted, preventing hindering recovery. In other words, the basic operation of the signal lights can be maintained until the power receiving unit, power supply unit, control board, etc., are submerged. This is a front view showing the internal structure of a traffic signal control unit.(A) and (B) are a side cross-sectional view and an internal front view of the traffic signal control unit.This is a block diagram illustrating the circuit configuration of a traffic signal controller.This is a conceptual block diagram illustrating the power wiring around a power distributor.(A) to (D) are left side view, top view, front view, and right side view of the power receiving device. The following describes one embodiment of the traffic signal controller according to the present invention. Figure 1 is a front view showing the specific internal structure of the traffic signal controller with the main door open, Figure 2(A) is a conceptual side cross-sectional view illustrating the traffic signal controller shown in Figure 1, and Figure 2(B) is a conceptual front view illustrating the interior of the traffic signal controller shown in Figure 1. Referring to the drawing, the traffic signal controller 100 comprises a housing 11 and an inner opening/closing plate 12 as support structural members, and a control board 20, a lamp drive unit 30, an external terminal board 40, a power supply unit 50, a power distributor 60, an AC external input unit 70, and a power switch 80 as circuit element members. The control board 20, lamp drive unit 30, external terminal board 40, power supply unit 50, power distributor 60, AC external input unit 70, and power switch 80 are housed in the closed housing 11. Here, the control board 20 is fixed to the inside of the inner opening/closing plate 12. The lamp drive unit 30, external terminal board 40, power supply unit 50, power distributor 60, and AC external input unit 70 are fixed to a sheet metal member 14 provided on the rear side of the housing 11. The sheet metal member 14 is positioned so as to extend parallel to and spaced apart from the rear plate 11f (i.e., the rear surface 11g) of the housing 11, and i