JPH0244429Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a time switch for late-night power use, etc., which is equipped with a battery as a power outage compensation power source.

A late-night power time switch equipped with a storage battery as a power outage compensation power source uses an AC power source to drive an electronic clock circuit during normal operation, and uses a storage battery to drive the electronic clock circuit during a power outage. In such a time switch, when it is being transported, when it is in stock before installation work is done, or when it is in stock after being removed, a power outage occurs and the storage battery is discharged, so it is necessary to install a battery switch to prevent discharge. be. The battery switch must be turned on when using the time switch and turned off at other times. Conventionally, such a battery switch has been manually operated, so if the user forgets to operate it, problems such as the power outage compensation function becoming useless or the storage battery being discharged may occur.

The purpose of the present invention is to solve the above-mentioned problems and provide a time switch that can automatically turn on and off the battery switch depending on whether it is in use or not.

To achieve this objective, the present invention inserts a battery switch in series with a battery as a power supply for power failure compensation, and connects the battery switch to an external mounting member with or without the use of mounting screws. It is characterized by comprising a switch that can be turned on and off, so that the battery switch is turned on when the mounting screw is always in the tightened position during use.

Hereinafter, the present invention will be explained in detail based on illustrated embodiments.

An embodiment of the present invention is shown in FIGS. 1 to 5. FIG. 1 is its electrical circuit diagram. During steady state, the AC voltage of the AC power supply 1 is stepped down by the transformer 2 to a voltage suitable for the electronic circuit, and then rectified to a DC voltage by the rectifier circuit 3. This DC voltage is smoothed by a capacitor 4 and converted to a voltage at a constant level by a constant voltage circuit 5. The output voltage of the constant voltage circuit 5 is connected to a diode 7 in an electronic clock circuit 6 equipped with a crystal oscillator.
Supplied via. As a result, the electronic timepiece circuit 6 is driven.

A series circuit of a storage battery 8, a battery switch 9, and a diode 10 as a power failure compensation power source is connected to the input side of the electronic timepiece circuit 6. When the time switch is used, the battery switch 9 is turned on. When a power outage occurs, power is supplied from the storage battery 8 to the electronic clock circuit 6 to compensate for the power outage.

Figures 2 and 3 show the state before the mounting screw 12 (Figures 4 and 5) for attaching the time switch to an external mounting member 11 such as a wooden board is tightened; Indicates the condition. The battery switch 9 includes a reed switch 13, a permanent magnet 14, and a movable metal fitting 1 shown in FIGS.
5 and a spring 16. Reed switch 13 is located inside terminal block 17. A movable metal fitting 15 is movably arranged in parallel with the reed switch 13. Movable metal fitting 15 is spring 1
6, and the horizontally bent upper end locking portion 15a hits a stopper 18 provided within the terminal block 17, thereby stopping at the lower position. The lower end portion of the movable metal fitting 15 is bent at about 45 degrees to form an inclined surface portion 15b, and this inclined surface portion 15b is arranged in the mounting hole 19 into which the mounting screw 12 is inserted. The movable metal fitting 15 is integrally provided with a magnet support portion 15c extending in the transverse direction, and a permanent magnet 14 is fixed to the tip of the magnet support portion 15c facing the reed switch 13. In addition, 20
2 is a terminal portion consisting of a terminal block 17 and a terminal fitting 21, 22 is a terminal screw, 23 is a base, 24 is a screw hole in the head, and a through hole 2 for the mounting screw 12 is in the lower part.
4a, and 25 is a fixing screw that fixes the terminal block 17 to the base 23 by screwing into a screw hole in the head of the mounting bracket 24.

When installing a time switch on site,
A predetermined portion of the base 23 is fixed to a mounting member 11 such as a wooden board, and the terminal portion 20 is fixed with a mounting screw 12. 2 and 3 show a state in which only a predetermined portion of the base 23 is fixed. In this state,
Since the mounting screw 12 has not yet been inserted into the mounting hole 19, the movable metal fitting 15 is in a lower position pushed down by the spring 16. Therefore, the permanent magnet 14 is located away from the contact point of the reed switch 13, and the reed switch 13 is turned off. Since this state is the same during transportation and storage, it is possible to prevent the storage battery 8 from discharging when not in use.

As shown in FIGS. 4 and 5, when the mounting screw 12 is inserted into the mounting hole 19 and screwed into the mounting member 11, the mounting screw 12 pushes up the inclined surface portion 15b of the movable metal fitting 15, and moves the movable metal fitting 15 to the upper position. move it to This causes the permanent magnet 14 to approach the contacts of the reed switch 13 and turn it on. Therefore, the power failure compensation function can be guaranteed during use.

The power outage compensation power source is not limited to the storage battery 8, but may also be a dry battery. The battery switch 9 is not limited to one using the reed switch 13, but may be one using a micro switch, a mercury reed relay, a small toggle switch, or the like.

As explained above, according to the present invention, a battery switch is inserted in series with a battery as a power outage compensation power source, and the battery switch is connected depending on whether or not a mounting screw is used to attach the time switch to an external mounting member. It consists of a switch that can be turned on and off, and the battery switch is turned on by making sure that the mounting screw is in the tightened position when in use. The switch can be turned on and off automatically. Therefore, the power failure compensation function can be ensured when the battery is in use, and discharge of the battery can be prevented when the battery is not in use.

[Brief explanation of the drawing]

Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a partially cutaway front view showing the battery switch in the OFF state in an embodiment of the present invention, FIG. 3 is a sectional view of the same, and FIG. The broken front view and FIG. 5 are also sectional views. 6...Electronic clock circuit, 8...Storage battery, 9...Battery switch, 11...Mounting member, 12...Mounting screw, 13...Reed switch, 14...Permanent magnet, 15...Movable metal fitting, 16... spring, 17
...Terminal block, 19...Mounting hole, 20...Terminal section.

Claims (1)

[Scope of utility model registration request] In a time switch equipped with a battery as a power outage compensation power source and a mounting screw for attaching the time switch to an external mounting member, a battery switch is inserted in series with the battery, and the battery switch is connected to the battery to determine whether or not the mounting screw is used. A time switch comprising a switch that can be turned on or off depending on the time.