JP3016154B2 - Electric motorcycle with sidecar - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric motorcycle such as an electric scooter or a motorcycle that rotates and drives driving wheels with a motor using a mounted storage battery as a power source. The present invention relates to an electric motorcycle with a sidecar having a configuration in which a sidecar equipped with a spare battery is detachably attached.

2. Description of the Related Art Research and development of electric motorcycles has already been widely carried out, and the results have been published in many patent gazettes and magazines and belong to the public.

Speaking of four-wheel electric vehicles, generally 400-500Kg
The power capacity is 12.8Kw
h ~ 16Kwh. The energy density of a general lead battery is about 32 Wh / Kg.

Problems to be Solved by the Present Invention The problem with electric motorcycles such as electric scooters is that the energy capacity of the battery is limited as in a general electric vehicle.
The driving distance per vehicle (cruising distance) is short.
30km for electric sukuo with 47.6kg storage battery
It has been found that a cruising range of only about 50km can be obtained at a constant speed of / h. In addition, compared to a case where an electric vehicle travels at a constant speed, in an urban area where the vehicle stops and stops at traffic lights and intersections, the cruising range per charge is 50-60.
It is also known to be reduced to%. Therefore, the practical range of the electric scooter is about 25km to 30km.

In addition, it is known that the life of a storage battery is shortened when the depth of discharge (depletion degree) of the storage battery is deeply used, which can be said of electric vehicles in general. It is desirable to charge the battery every time it discharges about 50% of the capacity of the storage battery in order to extend the battery life. In this regard, the daily mileage of an electric scooter used for commuting, etc. is several kilometers to ten and several kilometers in one way, so it is 10 to 20 kilometers for a round trip. If the vehicle travels over 20 kilometers on a single charge, battery life is a major issue.

Means for Solving the Problems As means for solving the problems of the prior art, an electric motorcycle with a sidecar according to claim 1 is characterized in that a sidecar equipped with a spare battery for traveling is attached to a frame side of the electric motorcycle. That the sidecar is detachably attached to the bracket on the side of the frame of the electric motorcycle with two stop pins in directions substantially parallel to the front and rear directions and one stop pin in the vertical direction. The traveling battery mounted on the frame of the motorcycle and the traveling motor are connected via a changeover switch and a driving power circuit. The two stop pins for attaching the sidecar to the side frame of the electric motorcycle; The brackets corresponding to the two fixing pins are each configured as a connector for electrical connection, and the spare battery for traveling mounted on the sidecar is It is characterized by being connected to the changeover switch via the connector.

Operation By using the traveling spare battery 1 of the sidecar 2 together with the traveling battery 7 mounted on the electric motorcycle 6, the traveling distance (the cruising distance) of the electric motorcycle 6 can be greatly extended. Further, it is possible to use the traveling battery 7 mounted on the electric motorcycle 6 so that the depth of discharge (consumption degree) of the battery 7 does not become too deep. Switching between the two batteries 7 and 1 can be easily performed by a switching operation of the switch 9.

The sidecar 2 can be easily attached to and detached from the electric motorcycle 6 by a total of three locking pins 3, 4 and 5. At the same time, electrical connection or disconnection between the spare battery for traveling 1 mounted on the sidecar 2 and the driving power circuit on the side of the electric motorcycle 6 is inevitably performed by attaching and detaching the stop pins 3 and 4 also serving as connectors. .

By replacing the sidecar 2, the spare battery 1 for traveling is
Will be exchanged. Then, the sidecar 2 separated from the electric motorcycle 6 can use the mounted traveling spare battery 1 for charging.

With the attachment of the sidecar 2, the installation area of the solar cell (solar cell) 10 is increased, and the electric power generated by the solar cell power generation can be used for charging the spare battery 1 for traveling and the like.

Documents and other articles can be freely loaded in the storage 11 of the sidecar 2.

Embodiment Next, an embodiment of the present invention shown in FIGS. 1 to 3 will be described.

In the figure, reference numeral 2 denotes a sidecar, and 6 denotes an electric motorcycle (electric scooter). A spare battery for traveling 1 is mounted on a sidecar 2. The electric motorcycle 6 has a running battery 7 mounted on its frame, and the rear wheel 12 is driven to rotate by a belt motor by a running motor 8 driven by the electric power to run. A driving power circuit that connects the running battery 7 and the running motor 8 includes a motor control circuit 13 and a changeover switch 9.

The sidecar 2 is a unicycle, and two relatively low positions before and after the sidecar 2 can be detachably attached to the brackets 14 protruding from the frame on the side of the electric motorcycle 6 with the stop pins 3.4 substantially parallel to the running direction. It is inserted and attached detachably. A relatively upper position between the two stop pins 3.4 is a position where the stop pin 5 in the vertical direction (in the direction orthogonal to the stop pin 3.4) is connected to the bracket 15 which also protrudes from the frame on the electric motorcycle 6 side. Removably inserted. Thus, the sidecar 2 is mounted so as to be able to run unitarily to the frame side of the electric motorcycle 6 and to be detachable. That is, the two stop pins 3.4 restrain horizontal turning motion while allowing the vertical rolling of the sidecar 2. The remaining vertical stop pins 5 restrain the sidecar 2 from falling in the vertical direction.

3.4 Stop pins oriented substantially parallel to the two running directions
(Or a combination including a vertical stop pin 5)
It is configured as a connector for electrical connection. The stop pins 3 and 4 are connected to the anode and cathode of the spare battery 1 for traveling mounted on the sidecar 2 by lead wires 16.17. On the other hand, brackets 14, 14 corresponding to the stop pins 3, 4 on the electric motorcycle 6 side are also configured as connectors for electrical connection, and each is connected to the changeover switch 9 in the drive power circuit for the electric motorcycle 6 by the lead wire 18. Have been.

That is, the attachment and detachment of the sidecar 2 to and from the electric motorcycle 6 by the fixing pins 3 and 4 means that the spare battery for traveling 1 mounted on the sidecar 2 is simultaneously electrically connected to or separated from the driving power circuit. I do. Therefore, the electric motorcycle 6 can easily switch and use the two types of batteries 1 and 7 at any time only by switching the changeover switch 9. By the way, when the traveling battery 7 mounted on the electric motorcycle or the like and the spare traveling battery 1 mounted on the sidecar 2 are connected in parallel, the discharge state is small (a lot of electricity remains).
It is known that a current flows from one battery to the other, resulting in a negative effect on battery life. Connecting the spare battery 1 for traveling on the sidecar 2 and the battery 7 for traveling on the electric motorcycle 6 in series is performed when the vehicle runs on the battery 7 on the electric motorcycle 6 and when traveling on the battery 1 on the sidecar 2. Sometimes, the voltage changes, which is inconvenient. In this regard, if the changeover switch 9 is provided as in the above configuration, for example, the traveling spare battery 1 on the sidecar 2 side is used first, and when it is used up, the vehicle is switched to the traveling battery 7 on the electric motorcycle 6 side to travel. In this way, the above-described obstacle of the parallel connection can be avoided.

Next, a storage 11 for documents and the like is provided in a concave shape on the upper part of the sidecar 2. Therefore, the electric scooter and the like originally have difficulty in securing a luggage loading space, and the inconvenience of not loading large luggage due to poor stability is solved. A solar cell (solar cell) 10 is attached to the surface of a member (or other portion) also serving as a lid of the storage 11. Therefore, the cruising distance of the electric motorcycle 6 can be extended as much as possible by using the electromotive force by the solar cell 10 (for example, charging the spare battery 1 for traveling).
The solar cell 10 can be embodied not only in the sidecar 2 but also in a configuration attached to the surface of the electric motorcycle 6.

Advantageous Effects of the Present Invention The electric motorcycle with a sidecar according to the present invention has a mileage (cruising distance) by switching between a spare battery for traveling 1 mounted on the sidecar 2 and a battery for traveling 7 mounted on the electric motorcycle 6. Can be greatly extended, which contributes to improving the practicality and convenience of the electric motorcycle 6. At the same time, the use of the battery for traveling 7 on the electric motorcycle 6 side with a deep discharge depth can be avoided, which contributes to the maintenance and maintenance of the battery life.

In addition, the spare battery 1 for traveling can be connected and replaced at the same time by attaching and detaching the sidecar 2, so that the electric motorcycle 6 can travel again in a short time, which is convenient. On the other hand, since the separated sidecar 2 can be immediately transferred to the charging process, it is practically very convenient and easy to use.

In addition, since the sidecar 2 can use the electromotive force of the solar cell 10, the traveling distance (cruising distance) of the electric motorcycle 6 can be greatly extended by using the generated electric power, and the utility of the electric motorcycle 6 is improved. Let me know.

Furthermore, the storage 11 provided in the sidecar 2 allows loading and carrying of documents and other large and small luggage,
This contributes to enhancing the practicality and convenience of the electric motorcycle 6.

[Brief description of the drawings]

1 to 3 are a simplified plan view, a side view and a front view of an electric motorcycle with a sidecar according to the present invention. DESCRIPTION OF SYMBOLS 1 ... Spare battery for traveling 2 ... Sidecar 3, 4, 5 ... Stopping pin 6 ... Electric motorcycle 9 ... Changeover switch 10 ... Solar cell 11 ... Storage

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B62K 11/00 B62K 27/00

Claims (1)

(57) [Claims] 1. A sidecar equipped with a spare battery for traveling is attached to a frame side portion of the electric motorcycle. The sidecar has two front and rear stop pins that are oriented substantially parallel to the traveling direction, and one vertical car. A removable pin is attached to the bracket on the side of the frame of the electric motorcycle with a stop pin in the direction. The traveling battery and the traveling motor mounted on the frame of the electric motorcycle are connected via a changeover switch and a driving power circuit. The two stop pins for attaching the side car to the side frame of the electric motorcycle, and the brackets corresponding to the two stop pins are respectively configured as connectors for electrical connection, and a spare for traveling mounted on the side car is provided. An electric motorcycle with a sidecar, wherein a battery is connected to the changeover switch via the connector.