JP2015109207A - Power supply system for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power supply system for vehicle, capable of preventing a waste of a standby current by abolishing troublesome operations.SOLUTION: When a plug is removed from an insertion port 22, a closing member 12 is energized by an energizing member 24, and the closing member 12 rotates to close the insertion port 22. At the same time, a switch opens interlocking with the rotation of the closing member 12, and an inverter circuit turns off to stop supply of commercial AC power to a plug socket.

Description

  The present invention relates to a vehicle power supply system.

  In Patent Document 1, “at least one standby power cut-off unit that is provided corresponding to at least one outlet plug-in unit and supplies or cuts off external power to an electronic product connected to at least one outlet plug-in unit; An outlet power supply unit that converts the external power input from at least one standby power cut-off unit to supply power to the inside of the outlet device, and a selection mode for operating the outlet device in an independent mode or a linked mode are input. The standby current of the electronic product connected to the mode selection unit and at least one outlet insertion unit is individually set, and the power status of the electronic product connected to at least one outlet insertion unit is set using the set standby current. And a control unit that controls at least one standby power cut-off unit according to the determined power state. It is.

Special table 2013-504992 gazette

There is a case where power supply for use in various electric products is received from an in-vehicle battery due to an earthquake disaster or a power outage. In vehicles called recreational vehicles, some vehicles have a plug socket (so-called outlet) for that purpose.
In a vehicle equipped with such a plug socket, a switch for turning on / off the power supply to the plug socket is provided in order to prevent the standby current (dark current) from constantly flowing through the plug socket and wasting power. Sometimes.

However, in order to receive power supply from the plug socket, it is troublesome to manually operate the changeover switch.
On the other hand, Patent Document 1 only discloses a technique for cutting off the supply of external power to an electronic product, and does not disclose any technique for preventing power consumption due to standby current.
Therefore, an object of the present invention is to provide a vehicular power supply system that can eliminate a waste of standby current by eliminating a complicated operation.

One aspect of the present invention is an inverter circuit that generates commercial AC power from a DC power source, an output terminal that supplies the commercial AC power to the electrical device when a plug of the electrical device is inserted, and a plug of the output terminal. A closing member that closes or opens the insertion port, and the commercial alternating current from the inverter circuit to the plug socket when opening and closing in conjunction with the closing member and closing the insertion port with the closing member A vehicle power supply system comprising: a switch for supplying commercial AC power when power supply is stopped and opened.
According to the present invention, when the insertion port is opened by operating the closing member, the electric device can be used by inserting the plug into the output terminal. On the other hand, since the switch can be opened simply by closing the insertion port by operating the closing member and power consumption due to standby power can be prevented, a vehicle that can avoid waste of standby current by eliminating complicated operation A power supply system can be provided.

In this case, the switch may turn the inverter circuit on and off by opening and closing the switch.
According to the present invention, it is possible to turn off the inverter circuit simply by closing the insertion port, and to prevent waste of power due to standby power.

In the above case, the closing member is a rotating body provided on the insertion port and formed with a hole, and the insertion port depends on whether or not the hole matches the insertion port by rotating. May be closed or opened.
According to the present invention, it is possible to use the electrical device by inserting the plug into the output terminal by rotating the closing member so that the hole matches the insertion port. On the other hand, by rotating the closing member so that the hole does not match the insertion port, the switch is opened and power consumption due to standby power can be prevented. Therefore, forgetting to turn off the switch can be prevented.

In this case, the closing member is a lid that covers the insertion port, and opens or closes the opening to open or close the insertion port, and presses or presses the opening / closing member that opens or closes the switch. May be canceled.
According to the present invention, an electric device can be used by inserting a plug into an output terminal by opening a closing member (lid) so as to open an insertion port. On the other hand, by closing the closing member so as to close the insertion port, it is possible to prevent the waste of power due to standby power by opening the switch. Therefore, forgetting to turn off the switch can be prevented.

In the above case, a biasing member that biases the closing member so as to close the insertion port may be provided.
According to the present invention, since the switch opens without manually operating the closing member, it is possible to prevent power consumption due to standby power caused by forgetting to turn off the switch.

  ADVANTAGE OF THE INVENTION According to this invention, the power supply system for vehicles which can eliminate the waste of standby current without requiring a complicated operation can be provided.

FIG. 1 is an explanatory diagram showing a structure of a plug socket of a vehicle power supply system according to a first embodiment of the present invention. FIGS. 1A and 1B are front views of the plug socket, and FIG. 1C is a cross-sectional view taken along line AA in FIG. FIG. 2 is an explanatory diagram of a switch provided in the plug socket of the vehicle power supply system according to the first embodiment of the present invention. 2A shows a state where the switch is closed, and FIG. 2B shows a state where the switch is opened. FIG. 3 is a circuit diagram illustrating a circuit configuration of the vehicle power supply system according to the first embodiment of the present invention. FIG. 1 is an explanatory diagram showing the structure of a plug socket of a vehicle power supply system according to a second embodiment of the present invention. Fig.1 (a) is a front view of a plug socket, FIG.1 (b) (c) is BB sectional drawing of (b).

Hereinafter, a plurality of examples of embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
FIG. 1 is an explanatory diagram showing the structure of the plug socket 10 of the vehicle power supply system 1 according to the first embodiment of the present invention. FIGS. 1A and 1B are front views of the plug socket 10, and FIG. 1C is a cross-sectional view taken along line AA in FIG.

The vehicle power supply system 1 is mounted on a vehicle. The vehicle power supply system 1 includes a plug socket (so-called outlet) 10 that serves as an “output terminal” of the present invention. One or a plurality of plug sockets 10 are provided at predetermined positions in the vehicle cabin. The plug socket 10 includes a main body case 11, a closing member 12, and a lid body 13. In FIG. 1 (the same applies to other drawings), the “upper side” is the upper side of the vehicle when the plug socket 10 is provided in the vehicle, and the “lower side” is the time when the plug socket 10 is provided in the vehicle. It is the underside of the vehicle. Further, the “vehicle compartment side” is the vehicle compartment side when the plug socket 10 is provided in the vehicle, and the “vehicle body side” is the vehicle body 100 side of the vehicle when the plug socket 10 is provided in the vehicle. .
The front panel 21 of the main body case 11 is provided with an insertion port 22 for inserting a plug of an electric device.

  The closing member 12 is, for example, a disk-shaped member, and is provided so as to overlap the insertion port 22 of the front panel 21. A rotation shaft 31 is provided at the center of the surface of the closing member 12 on the front panel 21 side. The rotating shaft 31 is inserted through a hole 23 formed in the central portion of the front panel 21, and the closing member 12 can be rotated forward and backward in the circumferential direction, and cannot be pulled out by the locking portion 23a. The rotating body is pivotally supported by the hole 23. Further, the closing member 12 is formed with a pair of holes 32 formed so as to penetrate the closing member 12. An electric device plug can be inserted into the hole 32. When the pair of holes 32 are arranged side by side as shown in FIG. 1B, for example, the position of the insertion port 22 is aligned with the position of the pair of holes 32. A plug of an electric device can be inserted into the insertion port 22. On the other hand, when the pair of holes 32 are arranged vertically as shown in FIG. 1A, for example, the position of the insertion port 22 and the position of the pair of holes 32 do not match each other. Thus, the plug of the electric device cannot be inserted into the insertion port 22 from the passenger compartment side.

The closing member 12 is turned to the state shown in FIG. 1B by being rotated 90 ° clockwise from the state shown in FIG. Further, the closing member 12 returns to the state shown in FIG. 1A by rotating the closing member 12 90 degrees counterclockwise from the state shown in FIG. That is, the closing member 12 is a member that closes or opens the plug insertion port of the electrical device.
Further, between the main body case 11 and the closing member 12, the closing member 12 is urged counterclockwise in FIGS. 1 (a) and 1 (b), that is, in a direction to close the insertion port 22. A biasing member (an elastic member such as a spring) 24 is provided.

  For example, a base end portion 13a of the lid 13 is attached to the upper portion of the front panel 21 so as to be rotatable forward and backward. Thereby, the lid 13 can be opened and closed in the direction of the arrow 92 in FIG. The state in which the lid 13 is opened is as shown in FIGS. Then, with the lid 13 opened, the plug 12 of the electric device is inserted into the insertion port 22 by rotating the closing member 12 to the state shown in FIG. 1B against the elastic force of the urging member 24. Can be plugged in. This can be performed by rotating the plug in a clockwise direction as shown in FIG. 1B with the tip of the plug inserted into the pair of holes 32. When the plug of the electrical device is inserted into the insertion port 22, the plug and the pair of holes 32 of the closing member 12 are engaged with each other to prevent the closing member 12 from returning to the state shown in FIG. To do. However, if the plug is pulled out from the insertion port 22 in this state, the closing member 12 is rotated by the elastic force of the urging member 24 and returns to the state of FIG.

  FIG. 2 is an explanatory diagram of the switch 41 provided in the plug socket 10. The switch 41 is a contact type switch composed of a pair of contacts 42 a and 42 b provided on the surface of the front panel 21 and a contact 43 provided on the surface of the closing member 12 on the front panel 21 side. . The contacts 42a and 42b are arranged, for example, as a pair on the left and right under the closing member 12 (the vehicle body side in FIG. 1). The contact 43 is an arc-shaped member formed near the circular peripheral edge of the closing member 12, for example. By rotating the closing member 12 to the state shown in FIG. 1B, the contact 43 moves on the contacts 42 a and 42 b, and the contact 42 a and the contact 42 b are connected by the contact 43. Thereby, the switch 41 is closed. On the other hand, the contact 42 a and the contact 42 b are not connected by the contact 43 by rotating the closing member 12 to the state shown in FIG. In this case, the switch 41 is opened.

  Next, a circuit configuration of the vehicle power supply system 1 will be described. FIG. 3 is a circuit diagram illustrating a circuit configuration of the vehicle power supply system 1. In this example, the vehicle on which the vehicle power supply system 1 is mounted is a hybrid vehicle or an electric vehicle, and a battery 51 (DC power supply) that supplies high voltage power to a vehicle drive motor (not shown) is provided. I have. The vehicle may be a normal gasoline vehicle or diesel vehicle that does not include the battery 51 that is a secondary battery. The vehicle also includes a battery 52 (DC power supply) that is a secondary battery that supplies electric power having a voltage lower than that of the battery 51 to electrical components of the vehicle.

The inverter circuit 53 is a circuit that generates commercial AC power (AC1, AC2) from DC power supplied by the battery 52 (or the battery 51) and supplies the commercial AC power (AC1 and AC2) to the plug socket 10 (two shown in FIG. 3). That is, when the ignition switch 91 of the vehicle is turned on, direct current power (DC Input) is supplied from the battery 52 to the inverter circuit 53 via the line 54. Since the battery 51 is a higher voltage power supply than the battery 52, the capacity of the inverter circuit 53 increases when the power is supplied from the battery 51, and the standby power of the plug socket 10 increases.
The main switch 55 includes the switch 41 and an activation lamp 56 for the switch 41. The start lamp lighting output signal (IND) generated by the start lamp 56 is supplied to the inverter circuit 53. The switch 41 is interposed in a line 58 that connects the battery 52 and the inverter circuit 53.

  The ECU (Electronic Control Unit) 60 is a control device for controlling the vehicle, and is configured around a microcomputer. The ECU 60 also includes a drive circuit that drives the inverter circuit 53 under the control of the microcomputer. From this drive circuit, to the inverter circuit 53, an ON / OFF signal (NOAC) for turning the inverter circuit 53 ON and OFF, and a DC / AC 100V output power monitor output signal (PM) for controlling the output of the inverter circuit 53, Is supplied.

  In such a circuit configuration, when the ignition switch 91 is turned on, DC power is supplied from the battery 52 to the inverter circuit 53 via the line 54. Further, the ECU 60 supplies an ON / OFF signal (NOAC) that permits the operation of the inverter circuit 53 to the inverter circuit 53. In this state, when the closing member 12 is rotated and the switch 41 is closed, an operation instruction signal (SW) is supplied to the inverter circuit 53. In this way, when the three conditions of supplying DC power from the battery 52 by turning on the ignition, supplying the ON / OFF signal (NOAC), and supplying the operation instruction signal (SW) by closing the switch 41 are met. The inverter circuit 53 is turned on to supply commercial AC power to the plug socket 10.

  Therefore, when the ignition is turned on and the ON / OFF signal (NOAC) is supplied to the inverter circuit 53, the inverter circuit 53 is turned on and off by operating the closing member 12 to open and close the switch 41. can do. Thereby, supply of commercial AC power from the inverter circuit 53 to the plug socket 10 is stopped when the insertion port 22 is closed by the closing member 12, and supply of commercial AC power is performed when the plug 22 is opened. Can do.

As described above, according to the vehicle power supply system 1 of the present embodiment, if the insertion port 22 is opened by the operation of the closing member 12, the plug can be inserted into the plug socket 10 to use the electric device. On the other hand, since the switch 41 can be opened and power consumption due to standby power can be prevented simply by closing the insertion port 22 by operating the closing member 12, it is possible to prevent waste of standby current by eliminating the need for complicated operations. be able to.
Further, in this case, power waste due to standby power can be prevented by turning off the inverter circuit 53 by operating the closing member 12.

Here, when the electric device is not used and the plug is not inserted into the insertion port 22, the closing member 12 is rotated so that the hole 32 does not match the insertion port 22. As described above, the closing member 12 closes the insertion port 22 when the plug is not inserted into the insertion port 22 to prevent foreign matter from being inserted into the insertion port 22 and to maintain the dustproof property. It is a member. Then, by closing the insertion port 22 with the closing member 12, the switch 41 is opened in conjunction with this. Therefore, if the insertion port 22 is closed with the closing member 12, forgetting to turn off the switch 41 when the plug is not inserted into the insertion port 22 can be prevented.
In addition, the elastic force of the biasing member 24 can prevent the switch 41 from being opened and forgetting to turn off the switch 41 without manually operating the closing member 12.

[Second Embodiment]
FIG. 4 is an explanatory diagram showing the structure of the plug socket 10 of the vehicle power supply system 1 according to the second embodiment of the present invention. 4A is a front view of the plug socket 10, and FIGS. 4B and 4C are cross-sectional views taken along line BB in FIG.
In FIG. 4 and the following description, the same reference numerals are used for members that are the same as those in the first embodiment, and a detailed description thereof is omitted.
The vehicle power supply system 1 according to the second embodiment differs from the first embodiment in that it does not include the closing member 12, the rotating shaft 31, the hole 23, the biasing member 24, and the like. It is.

  Instead, the vehicular power supply system 1 of the present embodiment has the following configuration. That is, an insertion hole 61 is formed in the lower portion of the front panel 21 from the vehicle compartment side to the vehicle body side, and the shaft member 62 (open / close) that can slide in the length direction of the insertion hole 61 is formed in the insertion hole 61. Member) is inserted. A contact support portion 63 that protrudes from the shaft member 62 in the radial direction of the shaft member 62 is provided at the end of the shaft member 62 on the vehicle body side. The contact support portion 63 is disposed in a space 64 formed at the back of the insertion hole 61 and moves in the space 64 as the shaft member 62 moves. The movement of the contact support part 63 is regulated by the wall 64 a on the vehicle interior side of the main body case 11 and the wall 64 b on the vehicle body side in the space 64. The contact support portion 63 is urged toward the passenger compartment by an urging member (an elastic member such as a spring) 65 disposed on the vehicle body side.

The switch 41 includes a contact 71 and a contact 72. The contact 71 is provided on the wall 64a on the passenger compartment side. The contact 72 is provided on the surface of the contact support portion 63 on the passenger compartment side so as to face the contact 71.
Further, an urging member (an elastic member such as a spring) 81 is provided at the base end portion 13a of the lid 13 (closing member) that closes or opens the insertion port 22 by opening and closing. It is biased to close in the direction of arrow 82.
The differences in configuration of the plug socket 10 from the first embodiment are as described above. The circuit configuration of the vehicular power supply system 1 according to the second embodiment is the same as the circuit configuration of the first embodiment shown in FIG. 3, and a detailed description thereof will be omitted.

  In such a configuration, when the lid 13 serving as a closing member is opened, the contact support portion 63 is urged by the urging member 65, and the contact of the contact 71 and the contact 72 is released by releasing the pressing of the shaft member 62. Since the switch 41 is closed, power is supplied to the plug socket 10. In other words, if the insertion port 22 is opened by operating the lid 13 to open, the plug can be inserted into the plug socket 10 to use the electric device. In this case, when the plug is inserted into the plug socket 10, the lid 13 is not closed due to the plug being blocked, and thus the switch 41 is kept closed.

  On the other hand, in a state in which the plug is not inserted into the plug socket 10, the lid body 13 closes from the biasing member 81 when the user releases the lid body 13 serving as the closing member. In this case, the elastic force of the urging member 81 is relatively strong, and the elastic force of the urging member 65 is relatively weak. Therefore, the back side surface of the lid 13 presses the tip end portion of the shaft member 62 toward the vehicle body, the contact support portion 63 moves backward toward the vehicle body, the contact 71 and the contact 72 are separated, and the switch 41 is opened. As a result, waste of power due to standby power can be prevented, so that troublesome operations are not required and waste of standby current can be prevented.

Further, in this case, power waste due to standby power can be prevented by turning off the inverter circuit 53 by opening / closing the lid 13 serving as a closing member.
Here, the lid body 13 is a member for closing the insertion port 22 to prevent foreign matter from being inserted into the insertion port 22 and to maintain dust resistance. Then, by closing the insertion port 22 with the lid 13, the switch 41 is opened in conjunction with this. Therefore, if the insertion port 22 is closed with the closing member 12, forgetting to turn off the switch 41 when the plug is not inserted into the insertion port 22 can be prevented.
In addition, the elastic force of the urging member 81 can prevent the switch 41 from being opened and forgetting to turn off the switch 41 without manually operating the lid 13.

1 Vehicle power supply system 10 Plug socket (output terminal)
12 Closure member (rotating body)
13 Lid (blocking member)
24 Biasing member 41 Switch 51 Battery (DC power supply)
52 Battery (DC power supply)
53 Inverter circuit 58 Line 62 Shaft member (opening / closing member)
81 Biasing member

Claims (5)

An inverter circuit that generates commercial AC power from a DC power source;
An output terminal for supplying the commercial AC power to the electrical device by being plugged in the electrical device;
A closing member that closes or opens the insertion port of the plug of the output terminal;
When opening and closing in conjunction with the closing member, and closing the insertion port with the closing member, when the supply of commercial AC power from the inverter circuit to the plug socket is stopped and opened A switch for supplying the commercial AC power;
A vehicle power supply system comprising:   The vehicle power supply system according to claim 1, wherein the switch turns the inverter circuit on and off by opening and closing the switch.   The closing member is a rotating body that is provided on the insertion port and has a hole formed therein. The rotation member closes or opens the insertion port depending on whether or not the hole matches the insertion port. The vehicle power supply system according to claim 1 or 2, wherein   The closing member is a lid that covers the insertion port, and opens and closes the insertion port to close or open, and presses or releases the opening / closing member that opens and closes the switch. The electric power supply system for vehicles according to claim 1 or 2 characterized by things.   The vehicular power supply system according to claim 1, further comprising an urging member that urges the closing member so as to close the insertion port.

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