Marine vessel

Patent metadata

Field	Value
Publication number	US-12454337-B2
Application number	US-202217901883-A
Country	US
Kind code	B2
Filing date	Sep 2, 2022
Priority date	Sep 2, 2022
Publication date	Oct 28, 2025
Grant date	Oct 28, 2025

Abstract

A marine vessel ( 10 ) includes: a hull ( 11 ); an electric propulsion portion ( 15 ) that propels the hull ( 11 ); a water tank portion ( 20 ) that is provided on the hull ( 11 ) and is capable of storing water in the water tank portion; a float portion ( 40 ) that is provided within the water tank portion ( 20 ) so as to be movable upward and downward; and a battery case ( 30 ) that is attached to the float portion ( 40 ) and is capable of storing a detachable portable battery ( 35 ) which becomes an electric power source of the electric propulsion portion ( 15 ) in the battery case.

First claim

What is claimed is:

1 . A marine vessel comprising:
a hull; an electric propulsion portion that propels the hull; a water tank portion that is provided on the hull and is capable of storing water in the water tank portion; a float portion that is provided within the water tank portion so as to be movable upward and downward; and a battery case that is attached to the float portion and is capable of storing a detachable portable battery which becomes an electric power source of the electric propulsion portion in the battery case, wherein the battery case is arranged so as to float with respect to the water in the water tank portion.

2 . The marine vessel according to claim 1 , comprising:
a cable that connects the battery case to the electric propulsion portion.

3 . The marine vessel according to claim 1 ,
wherein the battery case is capable of hermetically storing a plurality of detachable portable batteries.

4 . The marine vessel according to claim 1 , comprising:
within the water tank portion, a vertical motion regulation portion that regulates a movement of the float portion in an upward-downward direction.

5 . The marine vessel according to claim 1 ,
wherein the water tank portion comprises a supply discharge portion that takes water in and out between an inside of the water tank portion and an outside of the hull.

6 . The marine vessel according to claim 5 ,
wherein in the water tank portion, a height position of the battery case in the water tank portion is adjusted by adjusting an amount of seawater that is stored by the supply discharge portion.

7 . The marine vessel according to claim 6 , comprising:
a sensor that detects the amount of seawater that is stored in the water tank portion; and a control portion that controls the supply discharge portion based on a detection result from the sensor and adjusts the amount of seawater that is stored in the water tank portion.

8 . The marine vessel according to claim 1 ,
wherein the water tank portion comprises a lid portion that is capable of opening and closing an opening portion which opens at a deck of the hull.

9 . The marine vessel according to claim 1 , comprising:
a water tank portion that includes the battery case in the water tank portion; and a water tank portion that does not include the battery case.

10 . The marine vessel according to claim 1 ,
wherein the battery case is detachable from the water tank portion.

Assignees

• Honda Motor Co Ltd

Inventors

• SUGITATE Kenta

Classifications

• B63J2003/002

  by using electric power · CPC title

• B63B2013/005

  Sea chests · CPC title

• B63B2207/02

  Variable ballast or buoyancy · CPC title

• B63B79/10 Primary

  using sensors, e.g. pressure sensors, strain gauges or accelerometers · CPC title

• B63B32/10

  Motor-propelled water sports boards (power-driven personal watercraft B63B34/10) · CPC title