JPH06141600A - Electric motive-power supply device for car - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention relates to an electric power supply device for an automobile, which can be installed in an automobile, and an AC generator arranged to receive a rotary drive input from an automobile engine is connected to a battery. Provided is an electrical power generator that is automatically switched from "generator mode" to "generator mode" operation when cut off. [Arrangement] To the AC generator 10, a regulator control circuit 20 arranged in a connection box 19 for automatically switching, a rectifier bridge circuit 22, and a charging indicator light driver circuit 24 are connected together. The rectifier bridge circuit 22 is provided with output terminals E and F. Further, the AC generator 10 is provided with positive and negative socket terminals A and C that can be connected to the automobile battery 38. The charging indicator light driver circuit 24 includes a lamp 40 and an automobile ignition switch 48.
Is connected to the automobile battery 38 via the circuit. The regulator control circuit 20 is also connected to the automobile battery 38 via the relay 47.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a DC power supply device, and more particularly to an electric power supply device for an automobile which can be mounted on an automobile as an alternative to the conventional AC generator for automobiles.

[0002]

2. Description of the Related Art Conventionally, a power supply device for mounting DC power (direct current electric power) on an automobile has been proposed in various structures, for example, US Pat. No. 4,853,55.
7 gazette, 4,599,687 gazette, 3,316,416 gazette, 4,33
0,715 publication, 4,705,934 publication, 3,899,652 publication,
3,894,242, 4,100,474 and 3,770,976
It is proposed by the gazette.

These power supplies are described in US Pat. No. 3,770,
As described in Japanese Patent Publication No. 976, driving power is applied to the engine from a normal automobile battery to enable traveling,
It is configured to transmit the rotational driving force during traveling to an AC generator to charge a battery and supply electric power for operating various electric devices mounted on a vehicle. In addition, the electricity generated by this AC generator can be taken out as DC power through a rectifier or the like and used as a power source for outdoor welding work.

[0004]

However, in this power generation device, the normal operation in the current generation mode is the power generation mode for charging the battery and the power generation mode for the welding device. Since the changeover is operated by a switch and the switch is manually changed, the switch operation for disconnecting the battery connection and the switch operation for supplying electric power to the welding device etc. must be performed individually. The operation was troublesome. The present invention seeks to provide an improved version of such a conventional motor vehicle electrical power supply.

[0005]

To achieve the above object, the present invention provides an alternator arranged to receive a rotary drive input from an automobile engine, and an alternator in alternator mode. Control / switching means for switching from operation to generator mode operation, and
A vehicle characterized in that the switching means operates so as to automatically switch the AC generator from the generator mode to the generator mode when the connection between the AC generator and the vehicle battery is broken. It is an electric power supply device.

According to a second aspect of the present invention, the alternating-current electricity generating means and the control / switching means have independent voltage supply means for providing a line-to-line voltage. It is configured so that the voltage force can be set. Further, in the invention of claim 3, an independent voltage supply means for providing the line voltage by the AC electricity generating means and the control / switching means, and a low voltage, high ampere for the welding or battery charging by the independent means. It is characterized in that it comprises means for providing an output. Also, claim 4
The invention of (1) is characterized by comprising a circuit for lighting a driver's indicator light which gives an instruction to a vehicle driver when the battery for the AC electric vehicle is disconnected.

[0007]

Therefore, according to the electric power supply system for an automobile of the present invention, the control / switching means causes the alternator to change from the generator mode when the alternator and the automobile battery are disconnected. Since the generator mode is automatically switched, power supply to the welding equipment can be switched smoothly outdoors.

Further, according to claim 2, the control / switching means has an independent voltage supply means for providing the line voltage, and the independent means can perform welding and setting of the line voltage force. Since it is configured, the voltage supplied by switching can be appropriately selected and used. Further, according to claim 3, since the independent voltage supply means is provided with means for providing a low voltage and high amperage output for welding or battery charging, a low voltage and high amperage output optimal for welding is provided. Can supply power. In addition, according to claim 4, when the connection with the battery for the AC electric vehicle is cut off, the driver is provided with a circuit for lighting a driver's indicator lamp for giving an instruction to the driver of the vehicle. It becomes easy to visually recognize that is still in the generation mode.

[0009]

Embodiments of the present invention will now be described with reference to the drawings.
FIG. 1, FIG. 2 and FIG. 3 show a power supply device showing an embodiment of the present invention. That is, FIG. 1 shows the entire circuit of the electric power supply system for an automobile of the present invention. The AC generator 10 has a regulator control circuit arranged in a connection box 19.
A rectifier bridge circuit 22, a rectifier bridge circuit 22, and a charge indicator light driver circuit 24 are connected in cooperation with each other, and the rectifier bridge circuit 22 is provided with output terminals E and F. Also,
The AC generator 10 is provided with positive and negative socket terminals A and C that can be connected to the automobile battery 38. The charging indicator light driver circuit 24 is connected to the vehicle battery 38 via the circuit of the lamp 40 and the vehicle ignition switch 48. The regulator control circuit 20 is also connected to the automobile battery 38 via the relay 47.

Next, details of the electric power supply system for an automobile will be described with reference to FIGS. 2 and 3. The alternator 10 generally comprises a single turn rotor 12 and a regulator 14 cooperating with the rotor 12 of a 90 amp alternator such as that sold by Bosch, Germany. It is composed of the AC generator 10 it has. As shown in FIGS. 2 and 3, this power supply device includes a pair of starter coils 16 in which a single wire coil of a conventional AC generator starter is wound around a core,
Instead of 18, the pair of starter coils are both configured to be inductively driven by the rotor 12. Also, the two starter coils 16, 18 are such that the output of one starter coil 18 "floats" independently of the output of the car battery pedestal, or other fixed voltage source. , Are separated from each other and are insulative to each other inductively. Arranged together with the regulator 14 in the junction box 19 and cooperating with the alternator 10 are a regulator control circuit 20, a rectifier bridge circuit 22 and a charge indicator light driver circuit 24. .

According to the present embodiment, each of the three windings 30, 32, 34 of the starter coil 16 is connected to a diode 36 of a couple of pairs, the pair of diodes 36 comprising a positive and negative socket terminal. They are connected to each other so that there are positive and negative DC outputs at A and C, respectively. This socket terminal A,
C is used as a welding terminal and a battery charging terminal during welding work and charging operation. Normal,
Automotive battery 38 is from Alexander of Germany
Binzel Catalog No. BN511.01.003 · BN51
It is connected to the terminal A using a quick-connecting connector B such as the connector element described in 1.0006. According to the present invention, when the connection of the automobile battery 38 to the terminal A is cut off, the charging indicator light driver circuit 24 is activated and the lamp
40 lights up to indicate that the battery 38 is not charging. When connected to the positive terminal A of the battery 38, the lamp 40 is turned off.

The circuit 24 comprises a relay 42, which
42 is the starter 16 when the battery 38 is connected to terminal A.
It is arranged to receive the AC output generated from the coil 30 of FIG. This circuit 24 is connected to the relay 42 as shown in FIG. 2 when there is no AC input, that is, when it is not connected to the battery 38 terminal A and the automobile engine operates to drive the alternator. Positions switch 46 such that one side of lamp 40 is grounded. In this case, when the automotive ignition switch 48 is closed, the relay 47 closes the switch 49, allowing the battery voltage to be brought to the other side of the lamp 40, which lights up and the driver is not connected to the battery. Warn.

The regulator control circuit 20 comprises a relay 50,
Even if the relay 50 disconnects the battery 38 from the terminal A, even if the output of the starter coil 18 is generated by opening the switch 52 as shown in FIG.
The position of switch 52 is controlled by accepting the input from coil 30 of starter 16 via diode 51 so that the voltage of battery 38 can be sent to regulator 14 via diode 54 so that 38 cannot be charged. Work as you would.
Therefore, when the battery 38 is disconnected from the terminal A, the output of the starter coil 18 is such that the position of the switch 52 is automatically controlled and the output path is changed.

Referring now to FIG. 3, each rotor coil 18 is disconnected from the primary side 60 of the transformer 62 and forms part of the regulator control circuit 20. The secondary side 64 corresponding to this configuration is connected to the regulator 14 via the diode bridge 66 so that the feedback input is made to the regulator 14 when the automobile battery 38 is disconnected from the terminal A. It is connected. This operating mode is named the "generator" mode.
While in "generator" mode, transformer 62 is a diode bridge.
Working in cooperation with 66, the maintenance current flows to the rotor 12, so that the exhaust current generated in the automotive battery 38 can be eliminated. Normally, the engine speed needs to be increased when the power supply is operating in the "generation" mode. This need is met with suitable mechanical or electrical equipment.

If the vehicle battery 38 is connected to terminal A and is of the usual AC electricity, its operation is subject to the influence of the voltage of the battery 38. This operation is named the "alternator" mote. In the "alternator" mode, no line voltage is generated at terminals E and F. Rotating coil
18 are connected to output terminals E and F, respectively, with a suitable diode 68 interposed therebetween, and the output terminals E and F are arranged to output a line voltage. Rotor coil 18 and primary wire 60
Is selected to suit the desired output voltage at terminals E and F, such as 110 V, 220 V, or 240 V. Therefore, the line voltage at the terminals E and F can be selectively used at a desired output voltage.

[0016]

As described above, according to the present invention, an AC generator arranged to receive a rotary drive input from an automobile engine, and the AC generator from the generator mode operation to the generator mode operation. When the control / switching means disconnects the alternator from the automobile battery, the alternator automatically switches from generator mode to generator mode. Since it is an electric power supply device for an automobile characterized by being configured so as to switch to an electric power source, when the AC generator and the battery for the automobile are disconnected, the AC generator is generated from the generator mode. Since the mode is automatically switched, it is possible to smoothly switch the power supply to the welding device or the like outdoors, and the switching operation is easy.

Further, according to the invention of claim 2, since the welding and the setting of the line voltage force can be performed, the output voltage can be selected, so that not only the electric output for welding work but also other electric devices can be set. It is also possible to easily take out electricity at a voltage required for use. Further, according to the invention of claim 3, since the means for providing a low voltage and high amperage output for welding or battery charging is provided, the welding work outdoors can be efficiently performed. In addition, according to the invention of claim 4, it is possible to prevent troubles such as traveling by erroneous operation by warning the driver that the connection with the automobile battery will be lost.

[Brief description of drawings]

FIG. 1 is a circuit explanatory diagram showing an entire circuit according to an embodiment of an automobile power supply device of the present invention,

2 is a partial circuit explanatory diagram showing details of a starter, an automobile battery, and a charging indicator lamp driver circuit in the circuit explanatory diagram of FIG. 1;

3 is a partial circuit explanatory diagram showing details of an AC generator, a regulator control circuit, and a rectifying bridge type circuit in the circuit explanatory diagram of FIG. 1. FIG.

[Explanation of symbols]

 10 AC Generator 12 Rotating Terminal 14 Regulator 16 Starter Coil 20 Regulator Control Circuit 22 Rectifier Bridge Circuit 24 Charging Indicator Light Driver Circuit 30, 32, 34 Winding 36, 44, 51, 54, 68 Diode 38 Automotive Battery 40 Lamp 42,47 Relay 46,49,52 Switch 48 Automotive ignition switch 62 Transformer 66 Diode bridge A, B, C, D, E, F terminals

 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 592238652 Energator Technology Limited Israel Herzlia Happladustrito Galgarei 14 (72) Inventor Ami Saig Israel Herzlia Happladustri Galgarei 14

Claims (4)

[Claims] 1. An alternating current generator arranged to receive a rotary drive input from an automobile engine, and control / switching means for switching the alternating current generator from generator mode operation to generator mode operation. Has the above control
A vehicle characterized in that the switching means is configured to operate so as to automatically switch the alternator from the generator mode to the generator mode when the connection between the alternator and the automobile battery is broken. Electric power supply for automobiles. 2. The AC electricity generating means and control / switching means have independent voltage supply means for providing a line voltage, and the independent means can perform welding and setting of the line voltage force. The electric power supply device for an automobile according to claim 1, wherein the electric power supply device is for automobile. 3. The AC electricity generating means and control / switching means provide an independent voltage supply means for providing a line voltage, and the independent means provides a low voltage, high ampere output for welding or battery charging. An electric power supply apparatus for an automobile according to claim 1 or 2, further comprising: 4. The circuit according to claim 1, further comprising a circuit for lighting a driver's indicator light for giving an instruction to a vehicle driver when the battery for the AC electric vehicle is disconnected. Alternatively, the electric power supply device for an automobile according to claim 3.