JP3208378U - Auto power switch - Google Patents

Abstract

A vehicle capable of comfortably using an in-vehicle device inside a vehicle without the need to consume gasoline and the like unnecessarily by operating the engine of the vehicle and without using it in a limited time. Provide a power switch for the machine. An in-vehicle power supply switch 1 is provided in the middle of a power supply wiring 4 for supplying electric power from an in-vehicle battery 2 to an in-vehicle device 3, and the in-vehicle battery input to which electric power from the in-vehicle battery 2 is input. Unit 6, portable power input unit 7 to which power from portable power source 5 is input, power output unit 8 that outputs power to in-vehicle device 3, and either one of in-vehicle battery input unit 6 or portable power input unit 7 The power switching unit 9 outputs power input from the power output unit 8 to the in-vehicle device 3. [Selection] Figure 1

Description

  The present invention relates to an automotive power supply switching device that is interposed in the middle of a power supply wiring that supplies power from a vehicle-mounted battery to a vehicle-mounted device.

  In recent years, automobiles are not only used for moving, but are also used for trips involving overnight stays in vehicles, and are also used as evacuation places and standby places during disasters. Along with this, the time spent inside the automobile other than when the automobile is running has become longer, and the frequency with which various electric devices brought into the automobile are used is increasing. In order to drive various electric devices, portable power sources that are easy to carry are used.

  On the other hand, a vehicle-mounted device that requires electric power, such as navigation mounted on a vehicle, a television, or a music player, is connected to a vehicle-mounted battery used for driving the vehicle (see, for example, Patent Document 1).

JP-A-8-216800

  Conventionally, an in-vehicle device mounted on an automobile is used as an in-vehicle battery, and an electric device brought into the automobile is used as a portable power source.

  Since the in-vehicle battery is a power source used for driving a car, if the car engine is stopped and not charged for a long time, the car engine cannot be started due to power shortage.

  Therefore, when using an in-vehicle device mounted on an automobile, it is necessary to operate the automobile engine to consume wasteful gasoline, etc., or to use it only in a very short time. It was very inconvenient.

  Therefore, in the present invention according to claim 1, an in-vehicle battery input to which electric power from the in-vehicle battery is input in an automobile power supply switching device provided in the middle of a power supply wiring for supplying the in-vehicle battery power to the in-vehicle apparatus. Power input from a power source, a power input unit to which power from a mobile power source is input, a power output unit to output power to the in-vehicle device, and a power input from either the in-vehicle battery input unit or the mobile power input unit The power switching unit that outputs the output unit to the in-vehicle device is included.

  Further, in the present invention according to claim 2, in the present invention according to claim 1, the power switching unit is input from the portable power input unit when power is input from the portable power source to the portable power input unit. The power to be output is configured to be output from the power output unit to the in-vehicle device.

  Further, in the present invention according to claim 3, in the present invention according to claim 1, the in-vehicle battery input unit supplies power for accessories using the power of the in-vehicle battery according to the state of the key of the automobile. When the power is input from the portable power source to the portable power input unit, when the power is input from the ACC power source to the in-vehicle battery input unit, the power switching unit is connected to the ACC power source. The power input from the power output unit is output from the power output unit to the in-vehicle device. When no power is input from the ACC power source to the in-vehicle battery input unit, the power input from the portable power input unit is output from the power output unit to the in-vehicle device. It was decided to be configured to output to.

  And in this invention, there exists an effect described below.

  That is, according to the present invention, in an automotive power supply switching device that is interposed in the middle of a power supply wiring that supplies power from an in-vehicle battery to an in-vehicle device, an in-vehicle battery input unit that receives power from the in-vehicle battery, and a portable power source The power input unit to which power from the power is input, the power output unit that outputs power to the in-vehicle device, and the power input from either the in-vehicle battery input unit or the portable power input unit from the power output unit to the in-vehicle device Since it has a power switching unit that outputs to the vehicle, there is no need to operate the engine of the automobile to consume wasteful gasoline, etc., and it is not necessary to use the vehicle in a limited time. Can be used comfortably.

  In particular, when power is input from the mobile power source to the mobile power input unit, the power of the mobile power input unit is output from the power output unit to the in-vehicle device, thereby stopping the engine of the car. This makes it possible to comfortably use the in-vehicle device even when it is in operation.

  In addition, the in-vehicle battery input unit is connected to an ACC power source for supplying power for accessories using the in-vehicle battery power according to the state of the car key, and power is input from the portable power source to the portable power input unit. When power is input from the ACC power supply to the in-vehicle battery input unit, the power input from the in-vehicle battery input unit is output from the power output unit to the in-vehicle device, and the power is input from the ACC power source to the in-vehicle battery input unit. When it is not input, the power supply source is changed according to the state of the key of the vehicle by configuring the power input from the portable power input unit to be output from the power output unit to the on-vehicle device. Can be used comfortably.

Explanatory drawing which shows the motor vehicle power supply switching device which concerns on this invention.

  Hereinafter, a specific configuration of the automotive power switch according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the vehicle power supply switching device 1 is interposed in the middle of a power supply wiring 4 for supplying the power of the vehicle-mounted battery 2 to the vehicle-mounted device 3, and is a portable power supply 5 that is portable other than the vehicle-mounted battery 2. Are connected and used.

  The automotive power switch 1 outputs power to the in-vehicle battery input unit 6 that receives power from the in-vehicle battery 2, the portable power input unit 7 that receives power from the portable power source 5, and the in-vehicle device 3. A power output unit 8; and a power switching unit 9 that outputs power input from either the in-vehicle battery input unit 6 or the portable power input unit 7 from the power output unit 8 to the in-vehicle device 3.

  Normally, the power supply wiring 4 is used for accessories using the + B wiring 4a for directly connecting the output (+ B) of the in-vehicle battery 2 to the in-vehicle device 3 and the power of the in-vehicle battery 2 according to the state of the car key. It is divided into an ACC wiring 4b for connecting the in-vehicle battery 2 to the in-vehicle device 3 through an ACC power source 10 for supplying electric power (ACC). In the initial state of the automobile, the in-vehicle battery 2 and the in-vehicle device 3 are directly connected by the + B wiring 4a, and the ACC power source 10 and the in-vehicle device 3 are directly connected by the ACC wiring 4b.

  The automotive power switch 1 disconnects the + B wiring 4a and the ACC wiring 4b in the middle, and connects the + B wiring 4a to the vehicle battery 2 side and the ACC power supply 10 side of the ACC wiring 4b to the vehicle battery input unit 6, The in-vehicle device 3 side of the + B wiring 4 a and the in-vehicle device 3 side of the ACC wiring 4 b are connected to the power output unit 8. Therefore, the in-vehicle battery input unit 6 includes a + B input unit 11 to which power is directly input from the in-vehicle battery 2 through the + B wiring 4a, and an ACC wiring 4b through the ACC power source 10 from the in-vehicle battery 2. It is divided into an ACC input unit 12 to which power is indirectly input. Similarly, the power output unit 8 is divided into a + B output unit 13 and an ACC output unit 14. Note that the GND of the power switch 1 for the automobile, the in-vehicle battery 2 and the in-vehicle apparatus 3 is grounded to the earth of the automobile.

  The in-vehicle battery input unit 6, the portable power input unit 7, and the power output unit 8 may be directly connected to the power switching unit 9 or may be detachably connected via a connector.

  The power switching unit 9 is a vehicle-mounted battery that electrically connects (conducts) the + B input unit 11 and the ACC input unit 12 of the vehicle-mounted battery input unit 6 to the + B output unit 13 and the ACC output unit 14 of the power output unit 8, respectively. A wiring, a portable power supply wiring in which the portable power supply input unit 7 is divided into a + B output unit 13 and an ACC output unit 14 of the power output unit 8 to be electrically connected (conducted); Is configured with a switcher that switches according to the voltage of the in-vehicle battery input unit 6 or the portable power input unit 7. The power switching unit 9 can be formed by a switching circuit such as a circuit using a relay, a circuit using a switching element such as a transistor, or a control circuit using a CPU or the like. Therefore, the vehicle-mounted battery wiring and the portable power supply wiring that are switched by the switch by the switching circuit can be appropriately changed.

  For example, the power switching unit 9 detects the voltage of the portable power input unit 7 (current flowing from the portable power input unit 7), and forcibly inputs the portable power when the voltage is equal to or higher than a predetermined voltage value (current value). When the unit 7 is divided into the + B output unit 13 and the ACC output unit 14 of the power output unit 8 and is electrically connected (conducted) (switched to the portable power supply wiring) and is less than a predetermined voltage value (current value) The switching circuit may be configured not to output power from the power output unit 8.

  Further, the power switching unit 9 detects the voltage of the ACC input unit 12 of the in-vehicle battery input unit 6 (current flowing from the ACC input unit 12), and if it is equal to or higher than a predetermined voltage value (current value), it is compulsory. The + B input unit 11 and the ACC input unit 12 of the in-vehicle battery input unit 6 are electrically connected (conducted) to the + B output unit 13 and the ACC output unit 14 of the power output unit 8 respectively (switch to in-vehicle battery wiring). The switching circuit may be configured as described above. In this case, when the voltage of the ACC input unit 12 of the in-vehicle battery input unit 6 (current flowing from the ACC input unit 12) is less than a predetermined voltage value (current value), the voltage of the portable power input unit 7 (Current flowing in from the portable power input unit 7) is detected, and if it is equal to or higher than a predetermined voltage value (current value), the portable power input unit 7 is forcibly connected to the + B output unit 13 of the power output unit 8 and the ACC output. The switching circuit is connected to the unit 14 and electrically connected (conducted) (switched to the portable power supply wiring). When the voltage is less than a predetermined voltage value (current value), the switching circuit is configured so as not to output power from the power output unit 8. It may be configured.

  As described above, the present invention is an automotive power switch 1 interposed in the middle of the power supply wiring 4 that supplies the power of the vehicle-mounted battery 2 to the vehicle-mounted device 3. Is input to the in-vehicle battery input unit 6, the in-vehicle power source input unit 7 to which the power from the mobile power source 5 is input, the power output unit 8 that outputs power to the in-vehicle device 3, and the in-vehicle battery input unit 6 or the mobile power source. The power switching unit 9 outputs power input from any one of the input units 7 from the power output unit 8 to the in-vehicle device 3.

  For this reason, in the automobile power supply switching device 1 having the above-described configuration, it is not necessary to use an automobile engine to consume gasoline or the like unnecessarily, and it is not necessary to use the engine in a limited short time. The apparatus 3 can be used comfortably.

  In addition, when power is input from the portable power supply 5 to the portable power supply input unit 7, the automotive power supply switching device 1 transmits the power input from the portable power supply input unit 7 to the in-vehicle device 3 from the power output unit 8. It is configured to output.

  Therefore, in the automobile power switch 1 having the above-described configuration, the in-vehicle device 3 can be comfortably used inside the automobile even when the automobile engine is stopped.

  The vehicle power supply switching unit 1 is connected to an ACC power source 10 for supplying power for accessories using the power of the vehicle battery 3 according to the state of the vehicle key. When power is input from the power source 5 to the portable power source input unit 7 and power is input from the ACC power source 10 to the in-vehicle battery input unit 6, the power input from the in-vehicle battery input unit 6 is used as the power output unit. 8 is output to the in-vehicle device 3, and when no power is input from the ACC power source 10 to the in-vehicle battery input unit 6, the power input from the portable power input unit 7 is output from the power output unit 8 to the in-vehicle device 3. It can also be configured as follows.

  Therefore, in the automobile power source switch 1 having the above-described configuration, the in-vehicle device 3 can be comfortably used inside the automobile by changing the power supply source according to the state of the automobile key.

DESCRIPTION OF SYMBOLS 1 Automotive power supply switch 2 In-vehicle battery 3 In-vehicle device 4 Power supply wiring
4a + B wiring 4b ACC wiring 5 Mobile power supply 6 Car battery input part 7 Mobile power input part 8 Power output part 9 Power switching part 10 ACC power supply
11 + B input section 12 ACC input section
13 + B output section 14 ACC output section

Claims (3)

An automotive power supply switching device that is interposed in the middle of a power supply wiring that supplies power from a vehicle-mounted battery to a vehicle-mounted device,
An in-vehicle battery input unit to which electric power from the in-vehicle battery is input;
A portable power input unit to which power from the portable power is input;
A power output unit that outputs power to the in-vehicle device;
A power switching unit that outputs power input from either the in-vehicle battery input unit or the portable power input unit to the in-vehicle device from the power output unit;
A power switch for automobiles, comprising:   The power switching unit is configured to output the power input from the portable power input unit to the in-vehicle device when the power is input from the portable power source to the portable power input unit. The automotive power switch according to claim 1. The in-vehicle battery input unit is connected to an ACC power source for supplying power for accessories using the power of the in-vehicle battery according to the state of the key of the automobile,
When the power is input from the mobile power source to the mobile power input unit and the power is input from the ACC power source to the in-vehicle battery input unit, the power switching unit uses the power input from the in-vehicle battery input unit as the power. Output from the output unit to the in-vehicle device, and when no power is input from the ACC power source to the in-vehicle battery input unit, the power input from the portable power input unit is output from the power output unit to the in-vehicle device The power switch for automobiles according to claim 1 characterized by these.

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