JP3602900B2 - Supporting device for auxiliary battery device - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides an auxiliary battery that supplies an AC current by mounting a battery separate from an onboard battery mounted on the vehicle as an auxiliary battery in the vehicle and connecting the auxiliary battery and an inverter that converts DC to AC. The present invention relates to a device supporting device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a DC / AC inverter circuit (hereinafter referred to as an inverter) for converting DC to AC is built in, and is connected to a DC 12 volt power source such as a battery via a harness to convert DC 12 volts to AC 100 volts. 2. Description of the Related Art Inverters that enable the use of various electric devices such as a television in a vehicle interior or the like are used. Examples of such an inverter device include a device connected to a vehicle-mounted battery mounted on a vehicle, and a device mounted with an auxiliary battery for an auxiliary power supply separate from the vehicle-mounted battery and connected to this.
[0003]
In the case of an inverter device connected to the vehicle-mounted battery mounted on the vehicle, the engine may not be able to be re-driven due to the voltage drop of the vehicle-mounted battery. Need to be maintained. For this reason, there is a problem that fuel efficiency is deteriorated and the like, which is not suitable for long-time use.
[0004]
Therefore, in order to prevent the engine from being re-driven due to the voltage drop of the vehicle-mounted battery even when the engine is stopped, Japanese Utility Model Application Laid-Open No. 53-116941 discloses a capacity and an electric capacity per vehicle-mounted battery. Are two small batteries that are smaller than the conventional in-vehicle battery, one is a battery for driving the cell motor, the other is a battery for operating electric components such as a wiper and a radio of the vehicle, and the alternator is used when the engine is driven. A battery that can be charged by a battery is disclosed.
[0005]
[Problems to be solved by the invention]
However, when two small batteries are used as the in-vehicle batteries, the electric capacity per one battery is reduced, so that the battery voltage is apt to decrease, and the usage time and supply time of the inverter device with the engine stopped are reduced. The possible electrical capacity is limited. Furthermore, since the inverter device is used by connecting it to a vehicle-mounted battery, there is a problem that the use place of the inverter device is limited to the inside of the vehicle or near the vehicle.
[0006]
If the inverter device is connected to an auxiliary battery, the auxiliary battery must be mounted in the cabin, etc. For small recreational vehicles, the auxiliary battery device is mounted anywhere in the limited vehicle space. Is an issue.
[0007]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a supporting device for an auxiliary battery device , wherein a battery separate from a vehicle-mounted battery mounted on the vehicle is mounted on the vehicle as an auxiliary battery, and the auxiliary battery and the DC In a supporting device for an auxiliary battery device that supplies an alternating current by connecting an inverter that converts the current to an alternating current, a spare mounted on a spare tire carrier device provided at the rear of the vehicle with the back side of the wheel facing outward. A fixed portion attached to the spare tire carrier device together with the spare tire and a mounting portion extending from the fixed portion to the rear of the vehicle and detachably mounting the auxiliary battery device are provided inside the wheel of the tire. Features.
[0008]
According to the first aspect of the present invention, the auxiliary battery device is mounted on a spare tire carrier device provided at the rear portion of the vehicle, inside the wheel of the spare tire mounted with the back side of the wheel facing outward, together with the spare tire. The auxiliary battery device can be mounted outside the vehicle compartment by supporting the fixing device attached to the tire carrier device and the supporting device having a mounting portion for detachably mounting the auxiliary battery device. It is possible to effectively use the inside of the vehicle space. When the auxiliary battery device is detached from the support device, the auxiliary battery device can be used not only in the vehicle compartment but also outside the vehicle compartment.
[0009]
According to a second aspect of the present invention, in the supporting device of the auxiliary battery device according to the first aspect, the auxiliary battery device includes the inverter, and an electric element connected to the auxiliary battery and the inverter to control a current to the inverter. The circuit is housed in a waterproof case.
[0010]
According to the second aspect of the present invention, a circuit including an inverter, an auxiliary battery, and an electric element connected to the inverter and controlling an electric current to the inverter is housed in a waterproofed case, thereby reducing rain. The auxiliary battery device can be used outside the vehicle cabin even on the day.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a rear perspective view of a vehicle equipped with an auxiliary battery device according to the present invention, FIG. 2 is a view along arrow A in FIG. 1 with a spare tire removed, and FIG. 3 is a view along line BB in FIG. FIG. As shown in the drawing, a rear gate 2 is provided at the rear of the vehicle 1 and has one side end pivotally supported and capable of opening and closing in the vehicle width direction. Below the rear gate 2, a rear bumper 3 extending rearward is provided. Is provided. The spare tire 4 is mounted and supported on a spare tire carrier device 5 erected on the rear bumper 3 with the rear surface of the wheel 4A of the spare tire 4 facing outward.
[0012]
The spare tire carrier device 5 includes a pillar 5A that is rotatably mounted on the rear bumper 3 so as to be rotatable in the vehicle width direction, and a bumper projection 3A that is supported at one end by the pillar 5A and protrudes from the rear bumper 3 at the other end. A base part 5C provided with an engageable lock part 5B, two pipe parts 5D, 5D standing upright from both ends of the base part 5C along the inclination of the rear gate 2, and two pipe parts 5D, 5D And a spare tire mounting portion 5G having mounting holes 5E and 5F corresponding to bolt holes and hub holes (not shown) of the wheel 4A of the spare tire 4.
[0013]
Inside the wheel 4A of the spare tire 4, a fixing portion 6A provided at one end of a support device 6 described later is jointly fastened to the spare tire mounting portion 5G together with the spare tire 4 by bolts and nuts, and from the other end of the fixing portion 6A. An auxiliary battery device 7, which will be described later, is fixedly supported by a holder 8, which will be described later, on a mounting portion 6B which extends horizontally behind the vehicle 1. The auxiliary battery device 7 is provided with a harness 9 that extends in an exposed state and has a waterproof connector 10 at one end, and has one end connected to an electric system such as an alternator mounted in an engine room of the vehicle 1. The other end is connected to the waterproof connector 11 at the end of the harness 9A attached to the pipe 5D.
[0014]
As shown in FIGS. 4 (A) and 4 (B), the auxiliary battery device 7 is composed of a resin case 7A which is integrally molded and subjected to a waterproof process, and is provided inside a lower portion 7B below the case 7A. A circuit A which houses the auxiliary battery 12 and includes an inverter 13 for converting DC into AC inside the upper portion 7C at the upper portion of the case 7A, and an electric element connected to the auxiliary battery 12 and the inverter 13 and controlling an electric current to the inverter 13 (Not shown). Further, the upper part 7C is provided with a window 7D that can be opened and closed. Inside the window 7D, an auxiliary battery side outlet 14 that can take out 100 volts AC, and a current from the auxiliary battery 12 to the inverter 13 are controlled. And an inverter switch 15 that constitutes the circuit A. Further, a grip 7E is provided at the upper end of the upper portion 7C, so that the auxiliary battery device 7 can be easily carried by grasping the grip 7E.
[0015]
As shown in FIG. 5, the circuit A is connected to an auxiliary battery 12, an inverter 13, and controls an electric current from the auxiliary battery 12, and an inverter switch 15 via the inverter switch 15. The relay coil 16 connected to the connector 10 is connected to the waterproof connector 10 and the auxiliary battery 12, and is closed by energizing the relay coil 16. It is connectable to an electric system (vehicle-side circuit B) such as an alternator of the vehicle 1 via the waterproof connectors 10 and 11. Further, the inverter 13 is connected to the auxiliary battery-side outlet 14 so that it can take out 100 VAC.
[0016]
The vehicle-side circuit B includes an alternator 17 that generates electric power in accordance with rotation of the engine, a one-input two-output isolator 18 that has diodes 18A and 18B in parallel with the output of the alternator 17 as input, and allows current to flow only in one direction. An inverter remote control switch 20 for connecting a vehicle-mounted battery 19 of the vehicle 1 to the diode 18A of the isolator 18 and a positive terminal of the vehicle-mounted battery 19 via the waterproof connectors 11 and 10 to control a current to the relay coil 16; A diode 20A provided between the remote control switch 20 and the waterproof connector 11 for preventing current from flowing from the auxiliary battery 12, and an AC 100 volt connected to the inverter 13 via the waterproof connectors 11 and 10; Such as a vehicle-side outlet 14A that can take out It is configured.
[0017]
When the engine is driven, the output of the alternator 17 flows to the vehicle-mounted battery 19 or the inverter remote control switch 20 via one diode 18A of the isolator 18. When the inverter remote control switch 20 is closed, a current from the alternator 17 or the vehicle-mounted battery 19 flows to the relay coil 16 via the connectors 11 and 10, and the relay coil 16 is excited to close the relay contact 16A. When the relay contact 16A is closed, the current from the alternator 17 flows to the inverter 13 via the other diode 18B of the isolator 18, the connectors 11 and 10, and the relay contact 16A, and is converted from DC to AC in the inverter 13, so that the auxiliary battery side It is possible to take out AC 100 volts from the outlet 14 and the vehicle side outlet 14A.
[0018]
When the inverter switch 15 is closed while the inverter remote control switch 20 is open, the current of the auxiliary battery 12 flows to the relay coil 16 via the inverter switch 15, and the relay contact 16A is closed. The current from the auxiliary battery 12 flows to the inverter 13 via the relay contact 16A, and is converted from DC to AC, so that 100 V AC can be taken out from the auxiliary battery side outlet 14 and the vehicle side outlet 14A. When the inverter remote control switch 20 is closed while the engine is stopped, the current from the vehicle-mounted battery 19 flows to the relay coil 16, the relay contact 16 A closes, and the current from the auxiliary battery 12 flows to the inverter 13. It has become.
[0019]
Since the isolator 18 allows current to flow only in one direction, the current from the vehicle-mounted battery 19 does not flow to the inverter 13, and a small amount of current flows to the relay coil 16 when the inverter remote control switch 20 is closed with the engine stopped. , It is not necessary to consider the voltage drop of the vehicle-mounted battery 19 due to the use of the auxiliary battery device 7. Further, the auxiliary battery 12 and the vehicle battery 19 are electrically separated by the isolator 18 and the diode 20A, that is, the current from the auxiliary battery 12 does not flow to the vehicle battery 19, and the current from the vehicle battery 19 is auxiliary. It is connected so as not to flow to the battery 12, and charging between the two batteries is not performed. With the voltage drop of one battery, the charging of one battery by the other battery is prevented, and the voltage drop of the other battery by the charging is prevented. This prevents both batteries from lowering in voltage at the same time.
[0020]
Next, the support device 6 and the holder 8 will be described with reference to FIGS.
The support device 6 includes a fixing portion 6A and a mounting portion 6B. The fixing portion 6A has through holes 6C and 6C ′ opened at positions corresponding to the mounting holes 5E and 5F of the spare tire mounting portion 5G. A pair of extending portions 6D, 6D extending rearward of the vehicle 1 from the fixed portion 6A, and a pair of extending portions 6D, 6D supported on the case 7A in a state where both ends thereof are supported and the auxiliary battery device 7 is placed. An abutting portion 6E is provided, and engagement holes 6F, 6F for engaging one end of a holder 8 for holding the auxiliary battery 7 to the abutting portion 6E are opened near the both ends of the abutting portion 6E. are doing. Protrusions 6G, 6G are provided on the upper surface of the mounting portion 6B so as to protrude upward and restrict movement of the auxiliary battery device 7 in the vehicle front-rear direction at both front and rear ends, and on the lower surface of the mounting portion 6B, A protruding portion 6 </ b> H that protrudes downward and abuts the inner surface of the wheel 4 </ b> A of the spare tire 4 to prevent the support device 6 from unexpectedly dropping is provided.
[0021]
The holder 8 has a first band 8A having a hook 8C at one end and a tongue plate 8E at the other end, a hook 8C at one end, and a tongue plate 8E at the other end. And a second band 8B provided with a buckle 8F provided with a lock mechanism 8D for holding the inserted state. As shown in FIG. 8, an engagement hole 6F having hook portions 8C, 8C opened to the contact portions 6E, respectively. , 6F, the tongue plate 8E is inserted into the buckle 8F, and the lock mechanism 8D is locked, whereby the auxiliary battery device 7 is detachably attached to the support device 6.
[0022]
A method of mounting and using the auxiliary battery device 7 having the above configuration will be described.
When the spare tire 4 is mounted on the spare tire carrier device 5, the wheel 4A is mounted such that the surface of the wheel 4A faces the spare tire mounting portion 5G, and the support device 6 is disposed inside the wheel 4A. The spare tire 4 and the supporting device 6 are mounted with nuts (see FIG. 3).
[0023]
In the mounted state, the auxiliary battery device 7 is mounted on the mounting portion 6B with the hook portions 8C, 8C of the holder 8 being engaged with the engaging holes 6F, 6F opened in the contact portion 6E of the support device 6. Place. At this time, the movement of the auxiliary battery device 7 is restricted by the projections 6G, 6G, and the tongue plate 8E of the holder 8 is inserted into the buckle 8F, and the lock device 8D is locked to attach the auxiliary battery device 7 State is maintained. Next, the harness 9 is passed through the through hole 6C 'of the support device 6, the hub hole of the wheel 4A, and the hole 5F of the spare tire mounting surface 5G, and is attached to the waterproof connector 10 of the harness 9 and the pipe portion 5D. To the waterproof type connector 11 of FIG. The removal is performed in the reverse order of the attachment.
[0024]
Next, a method of using the auxiliary battery device 7 will be described.
When the auxiliary battery device 7 is attached to the support device 6, by closing the inverter remote control switch 20, the 12 VDC current from the alternator 17 driven by the engine is converted to 100 VAC by the inverter 13, It is possible to extract 100 volts AC from the auxiliary battery side outlet 14 and the vehicle side outlet 14A. When the auxiliary battery device 7 is not used while the engine is driven, the auxiliary battery 12 as well as the vehicle-mounted battery 19 is charged.
[0025]
Further, when the engine is stopped, by closing the inverter remote control switch 20 or the inverter switch 15, the DC 12 volt current of the auxiliary battery 12 is converted to AC 100 volt by the inverter 13, and the auxiliary battery side outlet 14, the vehicle It is possible to take out 100 volts AC from the side outlet 14A.
[0026]
Further, even when the auxiliary battery device 7 is detached from the supporting device 6 and the holder 8 and the waterproof connectors 10 and 11 are detached, the auxiliary battery 12 is used as a power source, and the inverter 13 converts DC into AC. It is possible to take out 100 volts AC from the battery side outlet 14. In the detached state, it is not limited to the interior of the vehicle, but can be easily carried by grasping the grip 7E, and is housed in a waterproofed case. It can also be used outside the vehicle cabin.
[0027]
Also, in an auxiliary battery device that supplies a 100 volt AC by connecting a battery separate from the vehicle-mounted battery mounted on the vehicle as an auxiliary battery to the vehicle and connecting the auxiliary battery and an inverter that converts DC to AC. At least an auxiliary battery, an inverter, and a circuit configured by connecting the auxiliary battery and the inverter and including an electric element for controlling current to the inverter are housed in a waterproof-treated case. 100 volts can be taken out by the electric current of the auxiliary battery device, and the auxiliary battery device can be used alone without considering the voltage drop of the on-board battery mounted on the vehicle. It can also be used outdoors on such days.
[0028]
Further, a vehicle-side circuit is constituted by at least an alternator mounted on the vehicle and a one-input, two-output isolator that receives an output of the alternator as an input and allows current to flow in only one direction, and connects the vehicle-side circuit and the circuit via a connector. When the engine is driven, the auxiliary battery can be charged by the output of the alternator and the output of the alternator Thus, the auxiliary battery device can be used. Since the isolator allows current to flow in only one direction, current from the vehicle battery does not flow to the inverter, so that the auxiliary battery device can be used without considering the voltage drop of the vehicle battery and the current from the auxiliary battery is isolated. Since the battery does not flow to the vehicle-mounted battery due to the negative voltage and the diode, charging between the batteries due to the voltage drop of one of the batteries is not performed, and it is possible to prevent the voltage drops of both batteries at the same time.
[0029]
Furthermore, by providing an inverter switch for controlling the current from the auxiliary battery to the inverter in the circuit, and providing a remote control switch for controlling the current from the alternator to the circuit in the vehicle side circuit, the alternator can be used when the engine is driven. When the power is used and the engine is stopped, the power can be switched as appropriate, for example, using an auxiliary battery as the power supply, so that 100 VAC can be taken out without considering the voltage drop of the vehicle-mounted battery.
[0030]
【The invention's effect】
As described above, according to the auxiliary battery device support device of the present invention, the auxiliary battery device is attached to the spare tire carrier device provided at the rear of the vehicle with the back side of the wheel facing outward, and the auxiliary battery device is mounted inside the wheel of the spare tire. The auxiliary battery device is mounted outside the vehicle compartment, because the auxiliary battery device can be detachably mounted via a supporting device formed of a fixing portion attached to the spare tire carrier device together with the spare tire and a mounting portion for mounting the auxiliary battery device. This can bring about a great effect in practical use, such as being able to effectively use the limited vehicle space.
[Brief description of the drawings]
FIG. 1 is a rear perspective view of a vehicle equipped with an auxiliary battery device according to the present invention.
FIG. 2 is a view on arrow A in FIG. 1 with a spare tire removed.
FIG. 3 is a sectional view taken along the line BB of FIG. 1; FIG. 4 (A) is a perspective view showing the appearance of an auxiliary battery device according to the present invention;
FIG. 4B is a cross-sectional view taken along the line CC of FIG. 4A.
FIG. 5 is an explanatory diagram of a circuit of an auxiliary battery device and a vehicle-side circuit according to the present invention.
FIG. 6 is a supporting device of the auxiliary battery device according to the present invention.
FIG. 7 is a holder of the auxiliary battery device according to the present invention.
FIG. 8 is an explanatory view of a state in which the holder according to the present invention is attached to a support device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vehicle 2 Rear gate 3 Rear bumper 4 Spare tire 5 Spare tire carrier device 6 Support device 7 Auxiliary battery device 7A Case 8 Holder 9 Harness 9A Harness 10 Waterproof connector 11 Waterproof connector 12 Auxiliary battery 13 Inverter 14 Auxiliary battery side outlet 14A Vehicle Outlet 15 Inverter switch 16 Relay coil 16A Relay contact 17 Alternator 18 Isolator 19 Vehicle battery 20 Inverter remote control switch

Claims (2)

A supporting device for an auxiliary battery device that supplies an AC current by connecting a battery separate from the vehicle-mounted battery mounted on the vehicle as an auxiliary battery to the vehicle and connecting the auxiliary battery and an inverter that converts DC to AC. At
A fixed portion and a fixed portion attached to the spare tire carrier device together with the spare tire inside the wheel of the spare tire attached to the spare tire carrier device provided at the rear portion of the vehicle with the back of the wheel facing outward. A supporting device for an auxiliary battery device, comprising: a mounting portion that extends rearward of the vehicle and that removably mounts the auxiliary battery device. 2. The circuit according to claim 1, wherein a circuit including the inverter, the auxiliary battery, and an electric element connected to the inverter and controlling an electric current to the inverter is housed in a waterproof case. 3. Supporting device for holding battery device.

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