Boat propulsion device
A boat propulsion device includes an engine unit, an attachment portion, an electrical component, wiring, a holder, and an engine cover. The engine unit includes an engine, an exhaust pipe, and a coolant passage. The engine includes a crankshaft which extends vertically. The exhaust pipe is connected to the engine. The coolant passage is configured to cool the engine or the exhaust pipe. The attachment portion is provided integrally with the engine unit on the outside of the coolant passage. The electrical component is attached to the attachment portion. The wiring is connected to the electrical component. The holder is connected to the engine unit on the outside of the coolant passage and holds the wiring. The engine cover houses the engine unit, the attachment portion, the electrical component, the wiring, and the holder.
1. A boat propulsion device comprising:
an engine unit including:
an engine including a crankshaft extending vertically;
an exhaust pipe connected to the engine; and
a coolant passage configured to cool the engine or the exhaust pipe;
an attachment portion integral with the engine unit outside the coolant passage;
an electrical component attached to the attachment portion;
a wiring connected to the electrical component;
a holder connected to the engine unit outside the coolant passage, the holder being configured to hold the wiring;
a connector that connects the wiring to the electrical component; and
an engine cover housing the engine unit, the attachment portion, the electrical component, the wiring, and the holder; wherein
the holder is spaced away from the connector.
2. The boat propulsion device according to claim 1 , wherein the electrical component and the holder are arranged on a same side of the engine unit.
3. The boat propulsion device according to claim 1 , wherein at least a portion of the holder is located between an inner surface of the engine cover and the wiring.
4. The boat propulsion device according to claim 1 , wherein the holder is provided at a position nearest to an inner surface of the engine cover in the engine unit.
5. A boat propulsion device comprising:
an engine unit including:
an engine including a crankshaft extending vertically;
an exhaust pipe connected to the engine; and
a coolant passage configured to cool the engine or the exhaust pipe;
an attachment portion integral with the engine unit outside the coolant passage;
an electrical component attached to the attachment portion;
a wiring connected to the electrical component;
a holder connected to the engine unit outside the coolant passage, the holder being configured to hold the wiring; and
an engine cover housing the engine unit, the attachment portion, the electrical component, the wiring, and the holder; wherein
the holder includes:
a connection portion connected to the engine unit, the connection portion projecting horizontally;
an upper extended portion extending upward from the connection portion; and
a lower extended portion extending downward from the connection portion.
6. The boat propulsion device according to claim 1 , wherein the engine cover tapers toward an upper portion of the engine cover, and the holder is located below a center of the engine in the vertical direction.
7. A boat propulsion device comprising:
an engine unit including:
an engine including a crankshaft extending vertically;
an exhaust pipe connected to the engine; and
a coolant passage configured to cool the engine or the exhaust pipe;
an attachment portion integral with the engine unit outside the coolant passage;
an electrical component attached to the attachment portion;
a wiring connected to the electrical component;
a holder connected to the engine unit outside the coolant passage, the holder being configured to hold the wiring; and
an engine cover housing the engine unit, the attachment portion, the electrical component, the wiring, and the holder; wherein
the exhaust pipe includes a catalyst and a catalyst storage tube configured to store the catalyst;
the electrical component is arranged alongside the catalyst storage tube in a prescribed direction parallel or substantially parallel to a horizontal direction; and
the electrical component overlaps with the catalyst storage tube when viewed from the prescribed direction.
8. The boat propulsion device according to claim 7 , wherein
the exhaust pipe further includes a connecting tube connected to the catalyst storage tube; and
an outer diameter of the catalyst storage tube is larger than an outer diameter of the connecting tube.
9. The boat propulsion device according to claim 8 , wherein the holder is connected to the catalyst storage tube, and the holder is located between an inner surface of the engine cover and the catalyst storage tube.
10. A boat propulsion device comprising:
an engine unit including:
an engine including a crankshaft extending vertically;
an exhaust pipe connected to the engine; and
a coolant passage configured to cool the engine or the exhaust pipe;
an attachment portion integral with the engine unit outside the coolant passage;
an electrical component attached to the attachment portion;
a wiring connected to the electrical component;
a holder connected to the engine unit outside the coolant passage, the holder being configured to hold the wiring; and
an engine cover housing the engine unit, the attachment portion, the electrical component, the wiring, and the holder; wherein
the exhaust pipe further includes:
an exhaust manifold connected to the engine;
a catalyst storage tube arranged adjacent to the exhaust manifold in a horizontal direction; and
a catalyst stored in the catalyst storage tube; wherein
the attachment portion is provided on the exhaust manifold; and
the holder is provided on the catalyst storage tube.