JPH0626112U - LED signal light - Google Patents

Abstract

(57) [Summary] [Object] To provide an LED signal lamp suitable for railways, which can be easily maintained and whose running cost is reduced. [Structure] A plurality of first openings 2a for lighting display provided on the front surface, and a plurality of second openings 2b for lighting confirmation provided on the back surface corresponding to the first openings. A first LED display including a case 2 provided therein and a plurality of LEDs that are arranged in front of the case so as to face the first openings and are connected in parallel in groups. Part 11a
And a second small LED display portion 11b, which is formed of a plurality of LEDs and is arranged rearward in the case so as to face the second opening portion, and corresponds to each other.
The ED display section and the second LED display section are connected to a common drive power source and are configured to be driven to emit light at the same time.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a railway signal light, for example, an LED signal light that can be used as a replacement signal light.

[0002]

[Prior art]

 Conventionally, a replacement signal light, which is one of the railway signal lights, is configured as shown in FIG. 5, for example. That is, (A), (B) and (C) of FIG. 5 are a front view, a rear view and a side view of the railway signal light 1, respectively. The three incandescent lamps 3a, 3b, 3c respectively installed in the three spaces partitioned by and the incandescent lamps 3a, 3b, 3c provided on the front surface of the case 2 respectively, It has a large opening 2a and a relatively small opening 2b provided on the back surface of the case 2 so as to correspond to the incandescent lamps 3a, 3b, 3c.

Here, when the incandescent lamps 3a, 3b, 3c are turned on, the light from each incandescent lamp is emitted forward through the corresponding opening 2a on the front side. On the rear side, similarly, the light is emitted rearward through the corresponding opening 2b.

According to the railway signal light 1 having such a configuration, among the incandescent lamps, for example, the incandescent lamps 3a and 3b or 3a and 3c are turned on, so that the incandescent lamps 3a, 3b or 3a, The light from 3c is emitted toward the front and the rear through the corresponding openings 2a and 2b. As a result, on the front side, the corresponding two openings 2a among the three large openings 2a are selectively illuminated to notify the train driver of the progress or stop of the train. On the rear side, a corresponding small opening 2b is made to emit light. Therefore, if the incandescent lamps 3a, 3b, 3c are turned on during the operation check of the signal lamp 1, the light is emitted to the outside through the opening 2b. Therefore, the incandescent lamps 3a, 3b can be emitted from the rear side. , 3c can be easily confirmed to be turned on.

[0005]

[Problems to be solved by the device]

 However, since the incandescent lamps 3a, 3b, and 3c are used as the light-emitting bodies for the lighting indication in the railway signal light 1 configured as described above, the service life is relatively short, and therefore the interval is relatively short. Since it is necessary to replace the incandescent lamps 3a, 3b, 3c, maintenance is troublesome and the power consumption is relatively large, which causes a problem of high running cost.

In view of the above points, the present invention has an object to provide a signal light suitable for railways, which can be easily maintained and whose running cost can be reduced.

[0007]

[Means for Solving the Problems]

 According to the present invention, the above-described object is to provide a plurality of first openings for lighting display provided on the front surface and a lighting confirmation provided on the back surface corresponding to the first openings. And a case having a plurality of second openings for facing each other, and arranged in the case so as to face each first opening toward the front and are connected in parallel to each other in a plurality of groups. A first LED display section composed of a plurality of LEDs, and a second small size composed of a plurality of LEDs arranged rearward facing the second opening in the case as well. An LED display unit, and the first LED display unit and the second LED display unit corresponding to each other are connected to a common drive power source and are configured to be driven to emit light at the same time. This is achieved by the characteristic LED signal light.

In the LED signal lamp according to the present invention, preferably, a part of the LEDs forming the second LED display section is connected to a wiring line that supplies a driving voltage to the LEDs forming the first LED display section. Has been done.

[0009]

[Action]

 According to the above configuration, when the first LED display section is driven to emit light, each LED of the first LED display section is caused to emit light, and the light from these LEDs is forwarded through the first opening. The second LED display section corresponding to the first LED display section is driven to emit light, and at the same time, the second LED display is displayed. Each LED in the section is caused to emit light, and the light from these LEDs is caused to be emitted rearward through the second opening, so that it is possible to confirm the lighting of the signal. Also, since the LED display unit consisting of a plurality of LEDs is used as a light emitting body for display, the life is greatly extended compared to the case where a conventional incandescent lamp is used, and It is extremely unlikely that the lamp will not light up during use, and since maintenance work is unnecessary over a long period of time, maintenance is simple. Furthermore, since the LEDs that make up the first LED display section are each divided into a plurality of groups and connected in parallel, even if some of the LEDs do not light up, the LEDs of the groups other than the group to which the LEDs belong do not light up. Since the LED emits light normally, it has almost no effect on the overall light emission display, and the LED is lit and displayed substantially without any abnormality. Further, since the power consumption of the LED itself is small, the power consumption is remarkably reduced and the running cost is reduced.

Further, when a part of the LEDs forming the second LED display section is connected to a wiring that supplies a driving voltage to the LEDs forming the first LED display section, If the wiring for lighting the one LED display section is broken, the entire first LED display section will be in a non-lighting state, but at the same time, a part of the LED of the second LED display section will be displayed. Since the supply of the drive voltage to the second LED display unit will also be interrupted, when confirming the light emission of the second LED display unit from the second opening on the back of the case, a part of the second LED display unit The non-lighting of the wiring will be confirmed, and thereby the abnormality such as the disconnection of the wiring will be confirmed.

[0011]

EXAMPLES The present invention will be described in detail below based on the examples shown in the drawings. FIG. 1 shows an embodiment of an LED signal lamp according to the present invention, in which (A) and (B) are a front view and a rear view, respectively. 2 is a side view of this embodiment. The LED signal lamp 10 is composed of three LED display lamps 11 mounted in the case 2 of FIG. 5, but only one is shown here for the sake of simplicity.

The LED display lamp 11 has a relatively large first LED display portion 11a composed of a plurality of LEDs arranged in the front of the case 2 so as to face the front opening 2a. Similarly, in each case 2, a relatively small second LED display section 11b composed of a plurality of LEDs arranged rearward so as to face the rear opening 2b is included.

In the illustrated case, the first LED display section 11a is composed of 114 LEDs, and the second LED display section 11b is composed of 15 LEDs.

Here, the LEDs of the LED display lamps 11 are connected as shown in FIG. That is, the first LED display unit 11a has groups of 38 LEDs, each of which is connected in series with each other, and each group of 38 LEDs is connected in parallel with each other. A group of 5 LEDs connected in series with each other are connected in parallel with each other. Further, the first LED display portion 11a and the second LED display portion 11b are connected in parallel with each other and can be connected to a common drive power source 12.

The first LED display portion 11 a is closely fitted to the first opening 2 a of the case 2, and the second LED display portion 11 b is the second opening of the case 2. Since it is closely fitted to the portion 2b, the light from the LED display portions 11a and 11b does not leak into the case 2, and therefore, when the conventional incandescent lamp 3 is used. As described above, it is not necessary to provide a partition plate for shielding light in the case 2.

The LED signal lamp 10 according to the present invention is configured as described above, and by driving each LED display lamp 11, the first LED display portion 11a and the second LED display portion 11a of each LED display lamp 11 are driven. Each LED which comprises the LED display part 11b will be made to emit light. As a result, the light from the first LED display portion 11a is emitted forward through the corresponding opening portion 2a of the case 2, and the light from the second LED display portion 11b is similarly emitted. The light is emitted rearward through the corresponding opening 2b of the case 2.

Thus, by selectively turning on each of the LED display lamps 11 as appropriate, the first LED display unit 11a notifies, for example, the train driver of the progress or stop of the train, and The lighting of the lamp can be easily confirmed by the second LED display portion 11b. Since the LED display unit 11a composed of a plurality of LEDs is used as a light emitting body for display, the life is significantly longer than that when a conventional incandescent lamp is used. Therefore, it is extremely unlikely that the lamp will not light up during use, and since replacement work is unnecessary for a long period of time, maintenance is simplified.

Here, when a part of the LEDs constituting the first LED display section 11a that performs the lighting display is unlit due to a failure or the like, only the group to which the part of the LEDs belongs is unlit. Since the LEDs of the other groups continue to emit light, the lighting display as a whole is substantially unchanged and continues to be displayed, and the life is further extended. Moreover, since the power consumption of the LED itself is small, the power consumption is significantly reduced, and the running cost is reduced.

FIG. 4 shows a modified example of the LED signal light shown in FIGS. 1 and 2, in which only two groups of LEDs among the LEDs constituting the second LED display section 11b are the first and second. It has the same structure as that shown in FIGS. 1 and 2, except that it is connected to a common wiring with the LED of one LED display section 11a.

In this case, when a disconnection that affects the light emission drive of the entire first LED display unit 11a occurs, the LED of the first LED display unit 11a and a part of the second LED display unit 11b are included. The LED of is also turned off at the same time. Therefore, when observing the lighting state of the LED of the second LED display section 11b through the second opening 2b of the case 2 during the operation inspection, a part of it, that is, in the case of this example, It is possible to easily confirm that the six LEDs forming the two groups are not lit, and as a result, an abnormality has occurred in the drive circuit of the first LED display section 11a. Become.

[0021]

[Effect of device]

 As described above, according to the present invention, it is possible to provide an LED signal light suitable for railways, which can be easily maintained and whose running cost can be reduced.

[Brief description of drawings]

1 shows an embodiment of an LED signal lamp according to the present invention, (A) is a front view and (B) is a rear view.

2 is a side view of the LED signal lamp of FIG. 1. FIG.

FIG. 3 is a wiring diagram showing an electrical configuration of the LED signal lamp of FIG.

4 is a wiring diagram showing another electrical configuration of the LED signal lamp of FIG. 1. FIG.

FIG. 5 shows an example of a conventional railroad signal light, (A) is a front view, (B) is a rear view, and (C) is a side view.

[Explanation of symbols]

 2 case 10 LED signal light 11 LED display lamp 11a 1st LED display part 11b 2nd LED display part

Claims (2)

[Scope of utility model registration request] 1. A plurality of lighting display first openings provided on the front surface, and a plurality of lighting confirmation second openings provided on the back surface respectively corresponding to the first openings. A first case comprising a case having an opening, and a plurality of LEDs arranged in the case so as to face the respective first openings and face forward and are connected in parallel to each other in a plurality of groups; LED
The display unit includes a display unit and a second small-sized LED display unit, which includes a plurality of LEDs arranged rearward in the case so as to face the second opening, and correspond to each other. The first LED display section and the second LED display section
An LED signal lamp, which is connected to a common drive power source and is configured to be driven to emit light at the same time. 2. A part of the LEDs constituting the second LED display section is connected to a wiring for supplying a drive voltage to the LEDs constituting the first LED display section, The LED signal light according to claim 1.