JPS5833679Y2 - Bulb breakage detection device for aviation lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for detecting burnout of a lighting light in an aviation lighting installation.

Aviation lighting equipment is used to clearly indicate to aircraft the location of a runway, the location of an approach road, the direction, etc., and its circuit is as shown in FIG.

That is, in the same figure, the secondary winding 1b of the power transformer 1
There are n lighting transformers 2-1, 2-2,...
・2n primary winding 2a-1, 2a-2...
・Connected in series with 2a-n.

1a is a winding on the primary side of a power transformer, and 4 is a switch.

Secondary windings 2b-1, 2b-2... of the lighting transformer
...2b-n are lighting lights 3-1 and 3-2, respectively
,...3-n is connected.

Then, if switches 4 and 4 are closed, the light 31
．． 3-2...3-n are lit all at once.

Due to the nature of this aviation lighting equipment, the lighting lie I is installed on a loop with a total length of several kilometers.

Conventionally, in order to check whether or not a bulb has broken out in this lighting light, it has been necessary to walk several kilometers around the area, which requires time and manpower.

The purpose of the present invention is to eliminate the above-mentioned drawbacks of conventional aviation lighting equipment, and to provide a light bulb breakage detection device that can detect a light bulb burnout and its position without having to walk around looking around. .

The present invention focuses on the electromagnetic change that occurs in the lighting transformer when a lighting bulb burns out, and detects this and activates an oscillator that oscillates an electromagnetic wave specific to each lighting light. The purpose is distantly related.

Embodiments of the present invention will be described below based on the drawings.

FIG. 2 is a diagram showing an embodiment of the bulb breakage detection device for aviation lighting equipment according to the present invention.

In the same figure, the secondary winding 22b- of any lighting transformer 2-m has a detector 5- connected in series with the lighting line 3-m.
m is provided.

If a bulb breakage occurs at 3-m (for lighting), the secondary circuit 22
Since the current b- is almost O, it is detected and a command is issued to the oscillator 6-m to oscillate an electromagnetic wave having a unique frequency fm.

These detectors 5 and oscillators 6 are attached to all n illumination light parts, each with its own frequency f1, f2...
... fn is emitted, and if the electromagnetic waves are detected by a receiver at a monitoring station, it is possible to know which lighting light has a burnout.

FIG. 3 shows another embodiment of the present invention.

In this example, an arbitrary lighting transformer 2-m is provided with a circuit 2cmm including a winding different from the secondary winding 22b- including the lighting light, and the circuit 2C-m includes a detection A container 7-m is provided.

When a bulb breaks in the lighting light, the magnetic flux in the lighting transformer 2-m naturally changes, which results in a change in the current in the circuit 2C-m.
This is detected by the oscillator 5-m, and a command is issued to the oscillator 5-m to oscillate an electromagnetic wave having a unique frequency fm.

The detector 7 and the oscillator 6 are attached to all n illumination light sections, and the point that detection is performed by a receiver at the monitoring station is the same as in the previous embodiment.

The present invention has the effect of making it possible to immediately know at a monitoring station whether a bulb is out of the aviation lighting equipment, and making the maintenance work for the aviation lighting equipment reliable and inexpensive.

[Brief explanation of drawings]

Figure 1 shows the circuit of the aviation lighting equipment, Figure 2, Figure 3.
The figure shows the first bulb breakage detection device for aviation lighting equipment according to the present invention.
FIG. 3 is a diagram showing a second example. 1...Power transformer, 2-1, 2-2,...
...2-n...Lighting transformer, 2 a-
1, 2a-2...2 a-n...Primary winding of lighting transformer, 2 b-1, 2b-2,...
...2b-n...Secondary winding of lighting transformer, 3-1.3-2...3-n...
・Illumination light, 4... Switch, 5-1, 5-
2.6...5-n...Detector, 6-1
, 62...6-n...oscillator, 7-1
, 7-2...7-n...Detector.

Claims (3)

[Scope of utility model registration request] (1) A primary side circuit in which a plurality of lighting transformers are connected in series to a power transformer, a secondary side circuit in which a lighting light is connected to the secondary side of the lighting transformer, and a broken bulb of the lighting light. An aviation lighting system consisting of a detector that detects electromagnetic changes that occur in a lighting transformer when a Ball breakage detection device. (2) The bulb breakage detection device for aviation lighting equipment according to claim 1, wherein the detector detects a change in current in a secondary circuit of a lighting transformer. (3) The bulb breakage detection device for aviation lighting equipment according to claim 1, wherein the detector detects changes in magnetic flux of a lighting transformer.