JPS6235342B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a voltage regulating device for a magnetic alternator, and in particular to a device in which a set voltage for control is changed depending on the load.

Magnetic alternators, which are mainly installed in small vehicles and boats, have a characteristic that the output voltage increases as the rotation speed increases, so it is common to connect the load via a voltage regulator. It is.

In the above-mentioned small vehicles, small boats, etc., the typical loads are batteries and lamps for illumination and display purposes, and the output windings of the generators that supply these loads are divided into two systems. There is.
That is, they are a battery charging winding and a current-carrying winding to the lamp body. Therefore, for example, if a voltage regulator is attached to this output winding to match the battery's appropriate charging voltage, when the power switch to the night lamp is turned on, an overload will occur and the voltage supplied to the lamp will drop. Resulting in.

Furthermore, if this current-carrying winding is added so that an appropriate voltage is supplied to the lamp body, an overvoltage will be applied to the battery when the energization switch to the lamp body is opened during the daytime.

As described above, the conventional voltage regulator for a magnetic alternator cannot supply an appropriate voltage to both loads.

Therefore, the object of the present invention is to provide a voltage regulator for a magnetic alternator that can supply an appropriate voltage even when both the battery and the lamp body are connected or the lamp body is disconnected. It is about providing.

In order to achieve this object, the present invention is configured such that the control voltage changes in conjunction with the switching operation when the lamp load is connected and when it is disconnected.

The apparatus of the present invention will be described below with reference to the illustrated embodiments.

FIGS. 1 and 2 show an example in which the connection position of the device of this invention is changed. In the example shown in FIG. 1, a voltage regulator 1 is connected to the charging winding 2a side of the magnetic alternator 2 to regulate the battery charging voltage. In the example shown in FIG. 2, the voltage regulator 1 is connected to the lamp body energizing winding 2b side of the magnetic alternator to adjust the voltage supplied to the lamp body.

In addition, 3 is a battery as a load, 4 is a lamp body as a load, 5 is a rectifier, and 6 is an interlocking switch. The interlocking switch 6 has a first contact 6a that opens and closes the power supply to the lamp body 4, and a second contact 6b that switches the control voltage of the voltage regulator 1.

Figures 3 and 4 show each embodiment of the voltage regulator 1, and by connecting terminals A and B as shown in Figures 1 and 2, the desired effect can be obtained. It is something.

That is, in the example shown in FIG. 3, the half-wave voltage of the magnetic alternator 2 is detected and controlled, and the main control element 1a is connected to the main control element 1a, and an operating signal is supplied to the main control element 1a to control the control voltage. The control section 1b is configured to set the voltage, and the adjustment section 1c is connected to the control section 1b and adjusts the set voltage of the control voltage. The control unit 1b includes a zener diode that turns on when the voltage applied to terminal A exceeds a set value, and a resistor connected in series with the zener diode.
It is composed of a transistor Tr and the like connected so as to turn on when _R1 and the zener diode ZD turn on and supply a trigger current for the control element 1a. In this embodiment, the adjustment section 1c is a resistor.
When the second contact 6b of the interlocking switch 6 is closed, the resistor _R2 and _R3 are connected in parallel, and when the second contact 6b of the interlocking switch 6 is opened, only the resistor _R2 acts. Note that 1d is a rectifying diode.

Therefore, the operating point of the control unit 1b changes depending on whether the lamp body 4, which is a load such as lighting, is turned on or off. This is the first
To explain the connection examples shown in Figures 1 and 2, the example shown in Figure 1 controls the charging voltage of the battery 3, and the first contact of the interlock switch 6 is open and the second contact is closed. It is designed so that the appropriate voltage can be obtained. That is, the resistance of the adjustment section 1c
R ₂ and R ₃ are interposed in parallel. Next, at night, etc., when the interlocking switch 6 is operated to energize the lamp body 4, the first contact 6a is closed and the second contact 6b is opened, so that only the resistance _R2 acts on the adjustment part 1c. Since it is interposed in series with the zener diode ZD of the control section 1b, the operating voltage of the control section 1b becomes higher than that described above, and as a result, the output voltage becomes higher. That is, a value suitable for the voltage supplied to the lamp body 4 is controlled. On the other hand, the charging voltage for the battery 3 also acts as high as possible, but since the lamp body 4 intervenes as a load,
This suppresses the output voltage of the charging winding 2a, thereby preventing overcharging.

The same applies to the case where the output voltage of the lamp body energizing winding 2b in FIG. 2 is adjusted. In this case, during the daytime when the lamp body 4 is not energized, the voltage regulator 1 serves as a kind of load for the output of the lamp body energizing winding 2b. Then, at night, when the interlocking switch 6 is operated to energize the lamp 4, the first contact 6a
is turned on and the second contact 6b is opened, so only the resistor _R2 acts on the adjustment part 1c, and as in the previous example, there is a difference between when the lamp body 4 is connected and when it is not connected. The operating point of the control section 1b will change, and appropriate voltages will be supplied to each section.

FIG. 4 shows that the detected voltage of the control unit 1b is detected from the full-wave rectified output of the magnetic AC generator 2, and the connection method of the resistors R ₂ and R ₃ of the adjustment unit 1c is different from the previous embodiment. is different.

The full-wave rectifier 1e consists of two diodes D ₁ and D ₂
and resistors R ₄ and R _5. When the full-wave rectified output exceeds the set value, the control section 1b operates, supplies the trigger current of the control element 1a, and supplies the trigger current of the magnetic alternator 2. The output voltage is controlled. The adjustment section 1c is connected in series to the negative terminal of the full-wave rectifier 1e and one end of the second contact 6b, and a zener diode is connected to the connection point of the resistors R ₂ and R ₃ of the control section 1b.
The configuration is such that the negative terminal of ZD is connected.

Therefore, during the daytime when the lamp body 4 is not energized, the resistor R ₃ is equal to the resistor R ₂ and the resistor R ₅ of the full-wave rectifier 1e.
When the interlock switch 6 is turned on so that the lamp body 4 is energized, the first contact 6a is turned on and the second contact 6b is opened. Adjustment section 1
The series circuit of resistor R ₂ of c and resistor R ₅ of full-wave rectifier 1e acts as a control voltage regulator, eliminating fluctuations in the output voltage caused by switching of interlock switch 6 and ensuring that appropriate voltage is applied to each part. It will act as if it were supplied.

Note that even if this embodiment is connected to the circuits shown in Figures 1 and 2, the same effect as the previous example can be obtained, and in both embodiments, the voltage is adjusted during the negative half cycle of the alternator. Since the battery charge current is carried out, the waveform of the positive half cycle is less damaged and the battery charging current is secured.

As is clear from the above explanation, this invention changes the control voltage according to the load so that an appropriate voltage is supplied to each load, so it is possible to avoid overcharging or lamp load that existed in conventional devices. Inconveniences such as voltage shortages are resolved, and an appropriate voltage is always supplied to the load.Moreover, this appropriate voltage is adjusted on the negative half cycle side, so it has approximately the same waveform as before. Unlike conventional products in which the positive half cycle is controlled by short-circuiting with a control element, the voltage becomes appropriate but there is no inconvenience such as insufficient current value, and effects not found in conventional products can be obtained.

In addition, the above effect is achieved by changing the control voltage of the voltage regulator using a contact linked to the interlocking switch when energizing the lamp body as a load, so when the lamp body is energized, the control voltage is automatically changed. , and there is an effect that no special operation is required for this purpose.

[Brief explanation of the drawing]

Figures 1 and 2 are circuit diagrams in which a voltage regulator according to the present invention is connected to the output circuit of a magnetic alternator, Figure 3 is a circuit diagram of a voltage regulator according to the present invention, and Figure 4 is a circuit diagram of another embodiment. This is an example. DESCRIPTION OF SYMBOLS 1... Voltage regulator, 1b... Control part, 1c... Adjustment part, 2... Magnetic alternator, 3... Battery, 4
... Lamp body, 6... Interlocking switch, 6a... First contact, 6
b...Second contact.

Claims (1)

[Claims] 1. In a voltage regulator in which the output voltage of a magnetic alternator is adjusted by a voltage regulator and supplied for battery charging and lamp load energization, the regulated voltage of the voltage regulator is adjusted to A magnet characterized in that a control section that sets the voltage by controlling an alternating current waveform on the negative side of the voltage is added with an adjustment section that changes the set voltage set by the control section depending on the presence or absence of the lamp load. Output voltage adjustment device for type AC generator.