JPH0982103A - Standing light - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a standing lamp the installation place of which can easily be found out by a user at a power failure during the night. SOLUTION: Contacts 10 to be brought into contact with the battery terminals are provided on a protrusion on a hold base 1 which makes a battery contained in a portable lamp 2 open between its terminals so as to turn off the same. A control portion 9 operating by electric power fed through the contacts 10 and flashing the portable lamp 2 is contained in the hold base 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stationary lamp which lights a portable electric lamp in case of a power failure and informs the user of the installation location.

[0002]

2. Description of the Related Art A stationary lamp, which is a holding lamp provided on a wall or the like, and a portable electric lamp that is detachably locked to the holding lamp and is detached from the holding lamp when used, is a convex portion provided on the holding lamp. Is inserted into the side opening of the portable electric lamp and the connection between the terminals of the battery built in the electric lamp is released, so that it is always turned off. The conventional stationary lamp thus configured has a problem that it is difficult to easily find the installed position at night or in a place with low illuminance. In order to let the user know exactly where to install the standing light, a contact is provided on the convex part, and power is supplied from the battery built in the lamp through this contact, and it is always provided on the holding table. A permanent light was used to blink the LED.

In Japanese Patent Laid-Open No. 61-99303, a portable electric lamp has a built-in relay for detecting a power failure and a terminal connected to a commercial power source. Is disclosed to improve the acceptability of the.

[0004]

However, in the configuration in which only the light-emitting member on the holding table showing the installation location of the standing light is constantly turned on by the electric power supplied from the battery through the contact provided on the convex portion, It is necessary to secure the voltage between them, that is, the voltage applied to the light emitting member, and to suppress the voltage drop due to the light bulb. Only a low current can be added to the circuit in which the battery, the light bulb, and the light emitting member, which are power sources, are connected in series, and a power saving element such as an LED is used for the light emitting member. Therefore, the brightness of the light emitting member is low. Had challenges. In addition, since this LED is always on, battery consumption is more noticeable than with conventional fixed lights.
Frequent battery replacement was required.

On the other hand, in a configuration in which a relay or the like built in a portable electric lamp is used to short-circuit the released contacts only during a power failure, the portable electric lamp is continuously lit in case of a power failure, and therefore a battery is provided to notify the installation location. There is also a problem that the consumption of the capacity is increased and the battery life is shortened when originally used as a portable electric light. Further, since it is always connected to a commercial power source and has a built-in terminal for detecting a power failure, it has a problem that usability is impaired as compared with a conventional portable electric lamp that is simply composed of a light bulb and a battery. .

[0006]

In order to solve the above-mentioned problems, a standing light of the present invention is a portable electric lamp having a battery, a light bulb and a reflector built therein, and a built-in electric lamp when the portable electric lamp is mounted. It consists of a holder that has a convex part that opens between the terminals of the battery and turns it off.The contact part that contacts the battery terminal is provided on the convex part to detect power failure and the illuminance in the vicinity where the standing light is installed, and blink the portable light The control unit is configured to be built in the holding table. Furthermore, the control unit uses a capacitor that receives power from a contact provided on the convex portion through a diode, an AC input terminal that is connected to a commercial power source, an optical sensor that measures illuminance, and the capacitor as a power source. , And an electronic switch that opens and closes between contacts, and at the same time that power is supplied from a battery that is a power source, the electronic switch is opened for a certain period of time, so that the portable electric lamp mounted on the holding base during nighttime power failure. The blinking operation can be repeated.

[0007]

With the above structure, it is possible to notify by blinking a light bulb at the time of blackout at night, and not only the acceptability in a dark place is greatly improved, but also the battery consumption at the time of power failure can be suppressed low.

[0008]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 (A) is a structural view of a stationary lamp according to the present invention, and FIG. 1 (B) is a sectional view thereof. The portable electric lamp 2 including the battery 7, the light bulb 6 and the reflecting mirror 5 is locked to the convex portion 8 provided on the holding table 1 installed on a wall or the like. The convex portion 8 inserted from the side opening 2a of the portable electric lamp 2 opens the contact between the positive and negative terminals of the two batteries 7 incorporated in the electric lamp. In this state, the light is normally turned off. A control unit 9 that detects a power failure and the illuminance in the vicinity where a standing light is installed and blinks the portable electric light is built in the holding table 1.

FIG. 2 is an example of a control circuit which constitutes the control unit 9. In this figure, when commercial power is supplied from the AC input terminal 3 or when the surrounding area of the standing light is bright,
Depending on the output from either the photocoupler 14 or the optical sensor 4, the transistors 18, 22 and 23 are output.
Keeps open and does not conduct. Therefore, the portable electric lamp 2 mounted on the holding table 1 is kept in the off state. In this state, a voltage corresponding to the battery voltage is input to the contact 10 provided on the convex portion 8, and the capacitor 11 is charged via the diode 12.

When a power failure occurs, the commercial power supply to the AC input terminal 3 is stopped. At this time, when the photo sensor 4 determines that the surroundings are dark, a current flows through the base of the transistor 18 through the resistors 7 and 15 and becomes conductive.
In addition, transistors 22 and 23 are also conducting and contact 1
Short-circuited between 0. Due to the short circuit between the contacts, the portable electric lamp 2 starts lighting. At this time, the transistor 18 receives the feedback of the base current by the diode 17. However, when the transistor 23 short-circuits the contacts to stop the power supply to the capacitor 11 through the diode 12, the control unit 9 consumes the capacity of the capacitor 11 that was charged before lighting and short-circuits the contacts. Hold.

When the capacity of the capacitor 11 is discharged, the contact short circuit cannot be maintained, and the extinguished state is restored. At this time, the battery voltage is reapplied between the contacts, but it does not immediately return to the lighting state, but the capacitor 16 maintains the unlit state for a certain period of time.

In this way, the operation of turning on and off is repeated. This blinking operation can suppress the consumption of the battery capacity due to the notification.

FIG. 3 shows another embodiment of the circuit constituting the control unit 9. In this figure, when commercial power is supplied to the AC input terminal 3 or when the surroundings are bright, an L level is input to the gate 24 by the output of the photocoupler 14 and the optical sensor 4, and oscillation stops. There is. At this time, the portable electric lamp 2 mounted on the holding table 1 is maintained in the off state, and the contact 10 provided on the convex portion 8 receives the voltage corresponding to the battery voltage, as in the above embodiment. ing. As a result, the capacitor 11 is charged via the diode 12.

Next, the photocoupler 14 detects a power failure,
And only when the light sensor 4 determines that the surroundings are dark,
The H level is input to the gate 24. At this time, the gates 24 and 25 start oscillating, and first the output FET 29
Becomes conductive and short-circuits between the contacts. The portable electric lamp 2 is turned on by short-circuiting the contacts. In this case, the power consumption can be further reduced by configuring the control circuit with CMOS.

Further, by setting the time constant of oscillation so that the capacitor 11 that has been charged runs out before the short-circuit operation of the control unit 9 is stopped and the short-circuit operation of the control unit 9 is stopped, continuous blinking is repeated.

[0017]

As described above, since the stationary lamp according to the present invention makes use of the light amount originally possessed by the portable electric lamp for the notification of the installation place, the user's acceptability is improved. Furthermore, since the inside of the portable electric lamp is composed of only the minimum necessary parts as an electric lamp, it is possible to adopt a cylindrical main body shape that is convenient for carrying, and it is possible to provide a user-friendly standing lamp. Become.

[Brief description of drawings]

FIG. 1A is a configuration diagram of a standing light of the present invention. FIG. 1B is a cross-sectional view of the standing light.

FIG. 2 is a circuit diagram of a control unit constituting a standing light according to the present invention.

FIG. 3 is another circuit diagram of a control unit that constitutes a standing light according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Holding stand 2 Portable light 2a Opening 3 AC input terminal 4 Optical sensor 5 Reflector 6 Light bulb 7 Battery 8 Convex part 9 Control part 10 Contact point 11 Capacitor 12 Diode

Claims (2)

[Claims] 1. A portable electric lamp which uses a battery as a power source, has a built-in electric bulb and a reflector, and has an opening on a side surface, and a connection between battery terminals inside the portable electric lamp, which is inserted through the opening,
While being turned off, a holder having a convex portion that locks the portable electric light, a contact that contacts the terminal of each battery opened by the convex portion, and power supply from the battery via the diode from the contact Receiving a capacitor, an AC input terminal connected to a commercial power source, an optical sensor input section for detecting the illuminance around the portable electric lamp, and the capacitor as a power source, and between the AC input terminal, the optical sensor input section and the contact point. It has an electronic switch that opens and closes, and is composed of a control unit that opens the electronic switch for a certain time when the power supply from the battery is started, and the light bulb built in the portable electric lamp mounted at the time of night power failure repeats blinking operation. Standing light that is characterized. 2. The control unit includes an AC input terminal, an optical sensor input unit, an electronic switch that opens and closes the contacts, and an oscillation circuit that includes a CMOS device, using the capacitor as a power source. The standing light according to claim 1, characterized in that.