JPH0356041A - Electric switch - Google Patents

Abstract

PURPOSE:To stabilize the operation of a load by connecting output leading terminals of a voltage limiter in series with a power line of a power of parallel connection of a storage battery and a charger, connecting it in parallel with a load, and intermittently connecting the power source of the load with a total voltage disconnecting unit of the terminals of the limiter. CONSTITUTION:A power source of a storage battery 2 and a charger 1, an output interrupter 3 for suitably operating a load 5, and a power source limiter 4 are provided. The normal voltage of the charged battery 2 is set as a reference voltage, and the limiter 4 for disconnecting a voltage rise at the time of starting of the battery 2 intermittently operates the load 5 by the interrupter 3 for intermittently connecting the total output voltage. Thus, the operation of the load is stabilized.

Description

[Detailed Description of the Invention] The present invention is a power source that is suitable for intermittent loading of a power source that has a generator and a storage battery connected in parallel, such as a power source that is often used in automobiles (hereinafter abbreviated as "synthetic source"). It's an electric switch.

With a synthetic power source, there is a difference in voltage between when the generator is charging the storage battery and when the generator is stopped, that is, during charging, the power supply voltage rises above the standard voltage of the storage battery. As a result, the load or electrical equipment used in the combined power supply requires an electrical equipment designed to withstand large voltage fluctuations, resulting in an expensive 5A electrical equipment. In addition, incandescent t-lights, which are often used in automatic smokers, etc., have traditionally had a very short lifespan because it was difficult to determine the voltage and the lamp life. Ta.

The present invention can easily eliminate the various problems mentioned above by replacing the conventionally used t-air switch with the electric switch of the present invention. In addition, the transistor-type electric switch shown in FIG. 2 as an embodiment of the present invention has good durability and is extremely inexpensive to manufacture because one output transistor is used both for voltage limiting and for interrupting the electric circuit. This contributed to lowering the original price of the composition of this invention.

Hereinafter, for the purpose of explaining the present invention, a part of the structure will be shown in FIGS. 1 and 2, and 2 and 12 will be described as an embodiment in which the invention is utilized as an electrical switch for flashing a general automatic brake light.

As shown in Figure 1, this invention uses a storage battery (2) and a storage battery (2).
A power source consisting of a device (1) that charges
) is intimidating. The load (5) is activated by a conventionally known switch. If the battery is charged, the voltage applied to the load (5) will become extremely high while charging the storage battery. The present invention sets the normal voltage of the charged storage battery (2) for the power supply as the standard voltage, that is, the voltage close to the voltage of the storage battery when the charging device stops charging, and allows voltages below the standard voltage to pass through. The voltage limiting device 1 is equipped with a voltage limiting device (4) (hereinafter referred to as "voltage limiting device"), which is characterized by cutting off the voltage that increases when charging of the storage battery starts.
The entire output voltage of t(4) is disconnected from IP. Attire to make. ii(3)
(hereinafter abbreviated as "output intermittent device") is used to intermittent the entire output voltage of the voltage limiting device (4). ! It is to do so.

As a specific example of the application of the present invention, an automatic brake light flashing device is shown in FIG. 2 and its operation will be explained. FIG. ．． The machine is charging Fugeki's storage battery (2). (4) is the voltage limiting device explained earlier; in this case, the above-mentioned storage battery (2) is installed when the II1 engine stops, that is, when the generator (1) stops generating electricity.
It is a device that passes the standard voltage below and cuts off the voltage above it, and operates at a voltage close to the normal voltage of the output transistor (6), signal amplification transistor (7), and storage battery (2) in the stopped state of the generator (1). The constant voltage diode (8) and resistor (9) should be avoided. Then, the switch (3) interlocked with the brake is set to the connected state when the brake is activated, and the brake light (5) is turned on at approximately the voltage of the constant voltage diode. That is, the brake lighting voltage is approximately the standard voltage of the storage battery when the generator (1) is stopped. Also, even when the engine is operating, the brake light will turn on at the standard voltage of the storage battery.

Note that the load (5) of the electric switch of the present invention is not limited to incandescent lights, but can be used to switch on and off the load of various types of electric devices other than electromagnetic coils. Furthermore, the switching speed of the electric switch is also free.

As is clear from the above explanation, the electric switch of the present invention eliminates the need for various electrical equipment for conventional power sources, making the electrical equipment extremely inexpensive. Also, the operation is stable.

Note that the standard voltage of the voltage limiting device (4) may be slightly changed, and if the current consumption of the load (5) is large, other methods may be considered. The devices in (3) and (4) can be stored in the same box or separated (the device in 3) should be the best one depending on the situation!
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[Brief explanation of drawings]

FIG. 1 is an electrical connection diagram for explaining the structure of the present invention. FIG. 2 is an electrical connection diagram of a brake light lighting device of a personal I7L desk according to an embodiment of the present invention.

Claims (1)

[Claims] Connect in series between the output terminals of the voltage limiting device, which is conductive when it is below the standard voltage of the storage battery and disconnected when it is above the standard voltage, to a power line that connects the storage battery and the storage battery charging device in parallel and uses it as a power source. , an electric switch that is connected in parallel with a load operated by the power source, and is a full voltage disconnection device between the output terminals of the voltage limiting device, and cuts off the power source of the load.