JPH0245996Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lighting device for a fishing light. In the fishing industry, various methods have been developed to utilize the light trends of fish to attract and catch fish using lights. It is well known that squid fishing and saury stick fishing are fishing methods that use a large amount of light. Traditionally, incandescent light bulbs have been used for most of these lights, and for squid fishing and saury fishing, each boat consumes a huge amount of electricity, at around 200KW/H to 400KW/H. There are many. The cost of lighting these lights is increasing year by year as the price of crude oil rises, and the economic burden is also increasing.

Therefore, in recent years, consideration has been given to using high-efficiency high-pressure discharge lamps instead of incandescent light bulbs.
Incandescent light bulbs have an efficiency of about 20 m/w, but high-pressure discharge lamps, such as metal halide lamps, have an efficiency of 80 to 120 m/w. Significant power savings can be achieved with ~1/6th the power consumption. It also has the advantage of extending the life of the light source by several to ten times.

However, unlike incandescent light bulbs, high-pressure discharge lamps cannot be relit instantaneously, which prevents them from being used as light sources for fishing lights.

In recent years, methods of eliminating the above-mentioned drawbacks have been studied in order to enable high-pressure discharge lamps to be used as light sources for fish-collecting lamps. One method is to superimpose a high voltage pulse voltage on the ballast's secondary voltage to enable instantaneous relighting. However, the high-voltage pulse voltage required to instantaneously relight a high-pressure discharge lamp is
It is 10KV to 20KV, and in the case of lighting for fishing lights, it is not a preferable method from safety considerations since it is used at sea.

Also, a method of using a high-pressure discharge lamp by installing it inside a lamp with a shutter mechanism is being considered.
Also, because it is used at sea, the reliability of the movable parts against rust etc. is poor, and even one appliance has many accessories such as the light body, shutter part, shutter movable equipment part (motor, etc.), control mechanism part, etc. This is not the preferred method considering the weight balance of the ship, as it requires parts, is quite heavy, and requires a large number of installed lights.

The present invention was devised in view of the above-mentioned circumstances, and its purpose is to be the runner-up to high-pressure discharge lamps. An object of the present invention is to provide a lighting device for a fish-collecting lamp, which makes it possible to use a high-pressure discharge lamp as a light source for the fish-collecting lamp by eliminating the problem of instantaneous relighting. In other words, the present invention has a circuit to which a plurality of high-pressure discharge lamps can be connected to the ballast, and the circuit that can turn on the high-pressure discharge lamps is switched in sequence when the power is turned on and off, thereby achieving instantaneous re-lighting. It is characterized by eliminating the problem.

One embodiment will be described below based on the drawings.
In the figure, 1 is a ballast for lighting a high-pressure discharge lamp, and 2a, 2b, and 2c are high-pressure discharge lamps. These high pressure discharge lamps 2a, 2b, 2c are connected in parallel to the secondary side of the ballast via relay contacts 3a, 4a, 5a as changeover switches, and when the relays 3, 4, 5 are activated, the and one of the high-pressure discharge lamps 2a, 2b, and 2c can be connected. The relays 3, 4, and 5 are operated by a circuit switching stepping relay 6 connected to the secondary side of the power switch 5. The stepping relay 6 has a function in which the contacts 6a of the stepping relay 6 are sequentially switched by turning the power switch 4 ON and OFF as one cycle.

With the above configuration, the power switch 7 can be turned on and off.
Accordingly, the high pressure discharge lamps 2a, 2b, and 2c can be made to blink in sequence.

To further explain the operation of the present invention, when the power switch 7 is turned on, the stepping relay 6 is activated. When the stepping relay 6 is activated, the contact 6a of the stepping relay 6 activates the relay 3, and the contact 3a of the relay 3 is maintained in a conductive state.
The high pressure discharge lamp 2a and the ballast 1 are connected, and the high pressure discharge lamp 2a is turned on. Next, turn off the power switch 7.
Then, the high pressure discharge lamp 2a is turned off. If you immediately turn on the power switch 7, the contact 6a of the stepping relay 6 will switch and activate the relay 4.
The contact 4a of the high-pressure discharge lamp 2 is maintained in a conductive state, and the high-pressure discharge lamp 2
b lights up. That is, if the above operation is followed, the high-pressure discharge lamp 2b will be turned on immediately after the high-pressure discharge lamp 2a is turned off by turning the power switch 7 ON-OFF-ON, and the same effect as instantaneous re-lighting will be obtained. . Thereafter, the high-pressure discharge lamps 2c, 2a, and 2b are sequentially lit by turning the power switch 7 OFF-ON in the same manner.

A problem arises when the second and subsequent flashing cycles occur at intervals shorter than the restart time of the high pressure discharge lamp. That is, considering the case described above, this is a case where the high-pressure discharge lamp 2a has not been sufficiently cooled down, that is, when the high-pressure discharge lamp 2a is cycled again in a period shorter than the restart time of the high-pressure discharge lamp 2a,
At this time, it seems that there is an inconvenience in that the high pressure discharge lamp 2a does not light up. However, when considered as a lighting for fishing lights, except for some special fishing methods,
It takes at least 20 minutes to turn on the lamp once, which is longer than the 5 to 15 minutes it takes to restart a normal high-pressure discharge lamp, so it does not pose a problem.

In order to cope with even shorter lighting times, it is also possible to solve the problem by increasing the number of high pressure discharge lamps in parallel. For example, assuming that the restart time of a high-pressure discharge lamp is 10 minutes, the number of high-pressure discharge lamps in parallel is 2, 3, or 4.
When used as a light, the flashing cycle that can be turned on instantly is 10 minutes, 5 minutes, 3 minutes, and 2.5 minutes. In addition, if the lighting time per time is shorter than 5 minutes, the temperature inside the outer bulb of the high pressure discharge lamp has not reached a thermal equilibrium state, so the restart time of the high pressure discharge lamp will be greatly shortened, and the above time will also be reduced. It is further shortened and poses no practical problems.

Next, increasing the number of high-pressure discharge lamps in parallel is
There are concerns that problems may arise with the number of sockets and installation, but since the lamps use high-pressure discharge lamps, which are more efficient than the incandescent lamps currently in use, the number of lamps required to light them is 1/4 to 1/6. This is not a problem since it only requires one piece. Conversely, increasing the number of high-pressure discharge lamps in parallel has the advantage that the lighting time per lamp is shortened to 1/(the number of parallel lamps), so that the lamp replacement period becomes twice as long as the number of parallel lamps.

In order to further enhance the practicality of the present invention, it is preferable to use it in combination with a method for shortening the starting time of a high pressure discharge lamp.

Various methods have been proposed to shorten the starting time of high-pressure discharge lamps, but one example is to increase the secondary short-circuit current of the ballast over the normal secondary short-circuit current for at least a certain period of time immediately after lighting the high-pressure discharge lamp. There is a way. The secondary short-circuit current value should be at least 2.5 times the current of the ballast of the high-pressure discharge lamp. The period of increase in the secondary short-circuit current is preferably a period in which the high-pressure discharge lamp is not excessively overloaded, and this period can be controlled by time using a timer. It was also possible to detect and control the voltage of the high pressure discharge lamp.

For example, if a 1000W metal halide lamp is used as a high-pressure discharge lamp, and the secondary short-circuit current is 3.3 times the stable lamp current, and the period is 45 seconds, 90% of the stable light output can be obtained in about 1 minute. It was done. It has also been found that the starting time is affected by the starting gas of the high-pressure discharge lamp.In the case of a 1000W metal halide lamp, it is preferable to fill it with Ne-Ar mixed gas, and it is more effective if the filling pressure is 50 torr or more. I also found out something.

As described above, according to the present invention, the problem of instantaneous re-lighting in high-pressure discharge lamps has been eliminated, and high-pressure discharge lamps can now be used in the field of lighting for fishing lights, which could not be used in the past, resulting in significant power savings and a long light source life. This makes it possible to have a very large economic effect.

[Brief explanation of drawings]

The figure is a circuit diagram showing an embodiment of a lighting device for a fishing light according to the present invention. 1... Ballast for high pressure discharge lamp, 2a, 2b, 2c
...High pressure discharge lamp, 3,4,5...Relay, 3a,
4a, 5a...Relay contact, 6...Stepping relay, 6a...Stepping relay contact, 7...
...Power switch.

Claims (1)

[Scope of utility model registration request] A plurality of high-pressure discharge lamps are connected to the ballast via a changeover switch, and the changeover switch is switched by turning the power ON and OFF to sequentially light up the plurality of high-pressure discharge lamps. Lighting device for fishing lights.