WO2023187887A1 - Electric outboard motor and vessel - Google Patents

Electric outboard motor and vessel Download PDF

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Publication number
WO2023187887A1
WO2023187887A1 PCT/JP2022/014958 JP2022014958W WO2023187887A1 WO 2023187887 A1 WO2023187887 A1 WO 2023187887A1 JP 2022014958 W JP2022014958 W JP 2022014958W WO 2023187887 A1 WO2023187887 A1 WO 2023187887A1
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WO
WIPO (PCT)
Prior art keywords
motor
outboard motor
main body
hull
control unit
Prior art date
Application number
PCT/JP2022/014958
Other languages
French (fr)
Japanese (ja)
Inventor
弘順 小西
則和 河合
真一 平井
Original Assignee
本田技研工業株式会社
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Filing date
Publication date
Application filed by 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to PCT/JP2022/014958 priority Critical patent/WO2023187887A1/en
Publication of WO2023187887A1 publication Critical patent/WO2023187887A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels

Definitions

  • the present invention relates to an outboard motor that is attached to the rear of a boat.
  • Outboard motors are generally equipped with engines that use gasoline or the like as fuel.
  • the present invention has been made in view of the above circumstances, and aims to improve the design and visibility of ships.
  • the present inventors have found that by locating the upper end of the motor and the upper end of the control unit below the upper end of the rear surface of the part of the hull where the electric outboard motor is attached, the design and visibility of the ship can be improved. We have discovered what we can do and have come up with the present invention.
  • the present invention is an electric outboard motor having the following configurations (1) to (14), and a marine vessel having the configuration (15).
  • an outboard motor body including a propeller, an electric motor that drives the propeller, and a control section that controls the motor; a mounting portion for mounting the outboard motor main body to the rear of the hull; An electric outboard motor, wherein an upper end of the motor and an upper end of the control unit are located below an upper end of a rear surface of a portion of the hull to which the attachment portion is attached.
  • the upper end of the motor and the upper end of the control unit can be lowered.
  • the design of the ship can be improved.
  • the outboard motor itself is difficult to see from the hull side, visibility to the rear is widened.
  • the design and visibility of the ship can be improved.
  • the motor and the control section are easier to downsize than the engine, the upper end of the motor and the upper end of the control section can be easily placed at a lower position.
  • control unit and the motor are not aligned in the vertical direction. Therefore, it becomes easier to reduce the vertical dimension of the outboard motor main body, and in this respect, it becomes easier to lower the upper end of the outboard motor main body.
  • the outboard motor main body includes a cover that houses the motor and the control section;
  • the control unit is located behind the motor, There is a space between the ceiling surface of the cover and the top surface of the motor, A battery is mounted on the hull, A DC cable is installed that extends from the battery through the space to the control unit.
  • the electric outboard motor according to any one of (1) to (3) above.
  • the DC cable can be efficiently extended from the battery to the motor in the shortest possible distance. Furthermore, by passing the DC cable through the space, it becomes easier to straighten the DC cable without bending it as much as possible. Therefore, even when the DC cable is hard and difficult to bend, it becomes easier to wire the DC cable.
  • the outboard motor main body includes a cover that houses the motor and the control section;
  • the control unit is located behind the motor, There is a space between the inner surface of the cover and the side surface of the motor, A battery is mounted on the hull, A DC cable is installed extending from the battery to the control unit through the space.
  • the electric outboard motor according to any one of (1) to (3) above.
  • the upper end surface of the motor can be arranged at a higher position than the upper end surface of the control section, and the degree of freedom in the arrangement of the motor in the vertical direction is increased.
  • the outboard motor main body includes a cover that houses the motor and the control section, The top of the cover has a bulge that projects upward; There is a space inside the bulge, A battery is mounted on the hull, A DC cable is installed that extends from the battery through the space to the control unit.
  • the electric outboard motor according to any one of (1) to (6) above.
  • the DC cable can be efficiently extended from the battery to the control unit in the shortest possible distance. Furthermore, by passing the DC cable through the space, it becomes easier to straighten the DC cable without bending it as much as possible. Therefore, even when the DC cable is hard and difficult to bend, it becomes easier to wire the DC cable.
  • the mounting portion supports a portion of the outboard motor body above the center of gravity of the motor and a portion of the outboard motor body below the center of gravity of the motor. ) to (7).
  • the outboard motor main body can be stably supported.
  • the mounting portion includes a bracket that is L-shaped in side view and has a vertical portion extending in the vertical direction and a horizontal portion extending rearward from the lower end of the vertical portion, and the bracket
  • the electric outboard motor according to any one of (1) to (7) above, which supports an outboard motor main body.
  • the entire electric outboard motor becomes larger in the longitudinal direction due to the support part.
  • the entire electric outboard motor can be downsized in the longitudinal direction.
  • the outboard motor main body includes a cover that houses the motor and the control section, The electric outboard motor according to any one of (1) to (9), wherein an upper end of the cover is located above an upper end of a rear surface of a portion of the hull to which the attachment portion is attached.
  • the upper end of the cover is located above the upper end of the rear surface of the portion of the hull to which the attachment portion is attached, so that the outboard motor body does not fall too far down. Therefore, this disadvantage can be avoided.
  • the height of the upper end of the upper end surface can be suppressed than when the upper end surface is installed so as to be oblique.
  • the control unit includes a control circuit that controls the motor, a control unit case that stores the control circuit, and a control unit connector provided in the control unit case,
  • the motor includes a rotor, a stator that rotates the rotor, a motor case that stores the rotor and the stator, and a motor connector provided in the motor case,
  • the control unit and the motor are electrically connected to each other by engagement of the control unit connector and the motor connector;
  • the electric outboard motor according to any one of (1) to (11) above.
  • control unit case and the motor case can be electrically coupled by the connector, so the control unit and the motor can be placed close to each other.
  • the outboard motor main body can be made smaller.
  • (13) comprising a heat exchanger extending below the water surface on which the hull floats;
  • the heat exchanger cools the object to be cooled by discharging heat generated in the object to be cooled, including at least one of the motor and the control unit, to water below the water surface.
  • the electric outboard motor according to any one of (1) to (12) above.
  • the heat exchanger it is necessary to extend the heat exchanger from the vicinity of the object to be cooled, that is, the vicinity of the motor and the control unit, to below the water surface.
  • the upper end of the motor and the upper end of the control unit are arranged at a low position, so that the distance from the object to be cooled to the water surface can be suppressed.
  • the heat exchanger can be downsized in the vertical direction.
  • the outboard motor main body includes an upper main body unit having the control section and the motor, and a lower main body unit having the propeller, When turning to change the traveling direction of the hull, the lower main body unit rotates around the axis of the drive shaft with respect to the upper main unit.
  • the electric outboard motor according to any one of (1) to (13) above.
  • the lower main unit rotates with respect to the upper main unit. Therefore, the control unit and motor do not rotate, and the cable that supplies power to them also does not rotate. Therefore, damage to the cable can be suppressed. Furthermore, since there is no need for a space for bending the cable during turning or an extra length of the cable for bending, the outboard motor itself can be made smaller.
  • the electric outboard motor according to any one of (1) to (14) above;
  • the space directly above the outboard motor can be used as an outboard motor deck, improving the usability of the space.
  • FIG. 2 is a side view showing an electric outboard motor.
  • FIG. 3 is a side view showing a state in which the outboard motor deck is flipped up.
  • FIG. 3 is a side view showing the outboard motor body in a tilted up state.
  • FIG. 3 is a side sectional view showing the tilt device of the attachment part.
  • FIG. 3 is a side view showing a connecting portion between the mounting portion and the outboard motor main body. It is a top view showing the same connection part. It is a side sectional view showing the damper of the same connection part.
  • FIG. 2 is a plan view showing an electric outboard motor.
  • FIG. 11 is a plan view showing a modification of FIG. 10.
  • FIG. FIG. 3 is an exploded plan view showing a motor and a control section.
  • FIG. 7 is a side view showing an electric outboard motor according to a second embodiment.
  • FIG. 7 is a plan view showing an electric outboard motor according to a third embodiment.
  • FIG. 7 is a side view showing an electric outboard motor according to a fourth embodiment.
  • FIG. 1 is a top plan view of a ship 100 according to the first embodiment.
  • the front side of the vessel 100 is referred to as “front Fr”
  • the rear side of the vessel 100 is referred to as “rear Rr”
  • the left side when facing the front Fr is referred to as “left L”
  • the left side when facing the front Fr is referred to as “left L”.
  • the right side is called “right R.”
  • “left” and “right” hereinafter may be read as lateral
  • “left-right direction” may be read as "width direction”.
  • the ship 100 includes a hull 10, two electric outboard motors 70, a hull deck 21, and two outboard motor decks 27.
  • the hull 10 includes a wheelhouse 12 .
  • a battery 15 is mounted on the hull 10.
  • a DC cable 16 is wired between the battery 15 and the electric outboard motor 70 for supplying power from the battery 15 to the electric outboard motor 70.
  • the electric outboard motors 70 are provided one at each end of the left and right sides L and R at the rear of the boat 100.
  • the electric outboard motor 70 includes an outboard motor main body 60 and a mounting portion 50.
  • the attachment portion 50 attaches the outboard motor main body 60 to the rear of the hull 10.
  • the hull deck 21 extends horizontally directly above the rear of the hull 10. In this embodiment, the hull deck 21 overlaps the entire rear part of the hull 10 when viewed from above, but there may be a portion that does not overlap. That is, the hull deck 21 only needs to overlap at least a portion of the rear part of the hull 10 when viewed from above. Although the hull deck 21 is separate from the hull 10 in this embodiment, it may be integrated with the hull 10.
  • the outboard motor deck 27 is provided for each electric outboard motor 70.
  • Each outboard motor deck 27 extends horizontally directly above the corresponding outboard motor main body 60.
  • each outboard motor deck 27 overlaps the entirety of its corresponding outboard motor main body 60, but there may be portions that do not overlap. In other words, the outboard motor deck 27 only needs to overlap at least a portion of the outboard motor main body 60 when viewed from above.
  • the front side 27x of the outboard motor deck 27 is attached to the hull deck 21 by a hinge or the like.
  • the outboard motor deck 27 is configured to be able to rotate around its own front side 27x, that is, to be able to flip up around its own front side 27x.
  • the hull deck 21 extends inward from the left and right sides of the outboard motor deck 27 to the rear of the front side 27x of the outboard motor deck 27.
  • FIG. 2 is a side view of the ship 100 viewed from the left L.
  • Both the hull deck 21 and the outboard engine deck 27 can be constructed without intervening obstacles such as seats provided on the hull 10, that is, without any obstructions that protrude above the upper surface of the hull deck 21 between the two decks. Continuously adjacent to each other without any objects in between.
  • the upper surface of the hull deck 21 and the upper surface of the outboard motor deck 27 are flush with each other.
  • the outboard motor deck 27 includes side wall portions 27a at the left and right outer ends, and a rear wall portion 27b at the rear end.
  • the side wall portion 27a protrudes from above the side of the outboard motor main body 60 to the side of the outboard motor main body 60, and covers at least a portion of the upper part of the outboard motor main body 60 from the side. Therefore, the side wall portion 27a overlaps at least a portion of the upper portion of the outboard motor main body 60 when viewed from the side in the left-right direction.
  • the rear wall portion 27b protrudes from above the rear of the outboard motor main body 60 to the rear of the outboard motor main body 60, and covers at least a portion of the upper part of the outboard motor main body 60 from the rear Rr side. Therefore, the side wall portion 27a overlaps at least a portion of the upper portion of the outboard motor main body 60 when viewed from the rear.
  • FIG. 3 is an enlarged view of the electric outboard motor 70 of FIG. 2.
  • the attachment section 50 includes a fixed section 51, a swivel section 57, and a tilt device 54.
  • the fixing part 51 is a clamp mechanism or the like, and is fixed to the transom 19 at the rear of the hull 10.
  • the upper end portion of the swivel portion 57 is pivotally attached to the upper end portion of the fixed portion 51 via a tilt shaft 56 extending in the left and right directions L and R.
  • the swivel portion 57 supports the front end portion of the outboard motor main body 60.
  • the tilt device 54 tilts the outboard motor main body 60 by rotating the swivel portion 57 about the tilt shaft 56 with respect to the fixed portion 51 . Details of the tilt device 54 will be described later.
  • the outboard motor main body 60 includes a control section 61, a motor 62, a reduction gear 63, a drive shaft 64, a bevel gear 65, a propeller 66, a housing 67, a cover 68, and a heat exchanger 69.
  • the housing 67 houses a control section 61, a motor 62, and a reduction gear 63.
  • the cover 68 is divided into an upper cover and a lower cover (not shown), and by covering the housing 67 from the outside, the control unit 61, motor 62, and reduction gear 63 are housed inside together with the housing 67. There is.
  • the cover 68 is configured such that the upper cover can be removed from the lower cover so that the interior can be maintained.
  • the motor 62 is an electric motor, and more specifically, an AC motor operated by AC power.
  • the control unit 61 is a device for controlling the motor 62, and is installed at the rear Rr of the motor 62.
  • the control unit 61 and the motor 62 are both arranged so that their upper end surfaces are horizontal.
  • the upper end surface of the motor 62 is located at a lower position than the upper end surface of the control section 61. Note that the "upper end surface of the control section 61" here is the upper end surface of the control section case 61a, which will be described later, and the “upper end surface of the motor 62" here is the upper end surface of the motor case 62a, which will be described later.
  • first space S1 between the lower surface of the outboard motor deck 27 and the mounting portion 50.
  • second space S2 At the top of the front part of the cover 68, there is a bulge 68a that protrudes upward, and inside the bulge 68a there is a second space S2.
  • a third space S3 is located between the ceiling surface of the cover 68 and the top surface of the housing 67 and between the ceiling surface of the cover 68 and the top surface of the motor 62.
  • the DC cable 16 extends from the battery 15 to the control unit 61, passing through the first space S1, the second space S2, and the third space S3 in this order.
  • the control unit 61 includes a control unit case 61a, a control circuit 61b, an inverter 61c, and a control unit connector 61d.
  • the control unit case 61a houses a control circuit 61b and an inverter 61c.
  • the control circuit 61b and the inverter 61c are electrically connected to the battery 15 via the DC cable 16, and are supplied with power from the battery 15.
  • Inverter 61c converts DC power supplied from battery 15 into AC power.
  • the control unit connector 61d is an output that outputs the converted AC power, and is provided on the front surface of the control unit case 61a.
  • the control circuit 61b controls the motor 62 by controlling the inverter 61c based on commands from the wheelhouse 12.
  • the motor 62 includes a motor case 62a, a motor connector 62b, a stator 62c, a rotor 62d, and a motor shaft 62e.
  • the motor connector 62b is an input for inputting AC power, and is provided on the rear surface of the motor case 62a.
  • the inverter 61c and the motor 62 are electrically connected to each other by engaging the control unit connector 61d and the motor connector 62b.
  • the motor shaft 62e is a shaft that extends in the vertical direction.
  • the rotor 62d is fixed to the motor shaft 62e and rotates together with the motor shaft 62e.
  • the stator 62c rotates the motor shaft 62e by rotating the rotor 62d using AC power supplied from the inverter 61c.
  • the drive shaft 64 is a shaft that extends in the vertical direction.
  • the upper end of the drive shaft 64 meshes with the lower end of the motor shaft 62e via the reduction gear 63.
  • the propeller 66 includes a propeller shaft 66a extending in the front and rear directions Fr and Rr, and a propeller main body 66b fixed to the propeller shaft 66a and rotating together with the propeller shaft 66a.
  • the front end of the propeller shaft 66a meshes with the lower end of the drive shaft 64 via a bevel gear 65.
  • the bevel gear 65 may simply change the rotational axis direction, or may reduce the rotational speed in addition to the conversion.
  • the upper body unit 60a which is the upper portion of the outboard motor body 60, includes a control section 61, a motor 62, a reduction gear 63, a housing 67, and a cover 68.
  • a lower body unit 60b which is a lower portion of the outboard motor body 60, includes a bevel gear 65 and a propeller 66.
  • the lower main unit 60b is rotatably attached to the upper main unit 60a around the axis of the drive shaft 64.
  • the main body upper unit 60a has a rotation device 60c inside the housing 67.
  • the rotation device 60c changes the direction of propulsion by the propeller 66 by rotating the lower body unit 60b around the axis of the drive shaft 64 relative to the upper body unit 60a based on a command from the wheelhouse 12. , change the traveling direction of the hull 10.
  • the rotating device 60c includes, for example, a motor (not shown) that is separate from the motor 62, and transmits the rotational force of the motor to the lower unit 60b of the main body via, for example, a worm gear set, thereby controlling the drive shaft.
  • the lower main unit 60b is rotated around the axis 64.
  • the upper end of the rear surface of the portion of the transom 19 to which the fixed portion 51 is attached will be referred to as the "attached portion upper end Z.”
  • Both the upper end of the control section 61 and the upper end of the motor 62 are located below the upper end Z of the attached section.
  • the "upper end of the control section 61" here is the upper end of the control section case 61a
  • the "upper end of the motor 62” here is the upper end of the motor case 62a.
  • the upper end of the cover 68 may be located above the upper end Z of the attached part.
  • the heat exchanger 69 extends below the water surface Ws on which the hull 10 floats.
  • the heat exchanger 69 cools the object to be cooled by discharging heat generated in the object to be cooled, including at least one of the motor 62 and the control unit 61, to water below the water surface Ws.
  • the heat exchanger 69 guides the heat transfer medium that has exchanged heat with the object to be cooled below the water surface Ws, exchanges heat with the water below the water surface, and then returns the medium to the object to be cooled.
  • the object to be cooled is cooled by repeatedly returning it to the vicinity.
  • the aforementioned heat transfer medium may be, for example, water circulating within the heat exchanger 69, air circulating within the heat exchanger 69, or oil circulating within the heat exchanger 69. It may be.
  • a gap G is formed between the lower surface of the outboard motor deck 27 and the cover 68 of the outboard motor main body 60.
  • FIG. 4 is a side view showing a state in which the outboard motor deck 27 is flipped up about the front side portion 27x from the state shown in FIG. As a result, the outboard motor main body 60 is exposed upward.
  • FIG. 5 is a side view showing a state in which the outboard motor main body 60 is tilted up from the state shown in FIG.
  • the outboard motor main body 60 comes into contact with the lower surface of the outboard motor deck 27.
  • the aforementioned gap G becomes zero and the outboard motor main body 60 comes into contact with the lower surface of the outboard motor deck 27.
  • the outboard motor main body 60 presses the outboard motor deck 27, so that the outboard motor deck 27 rotates in conjunction with the tilt up of the outboard motor main body 60.
  • FIG. 6 is a side sectional view showing the tilt device 54.
  • the tilt device 54 includes an actuator 54a.
  • the actuator 54a tilts the outboard motor main body 60 by rotating the swivel portion 57 about the tilt shaft 56 with respect to the fixed portion 51.
  • the actuator 54a may be a cylinder such as a hydraulic cylinder, or may be a motor separate from the motor 62.
  • the tilt device 54 raises the outboard motor main body 60 from the water surface Ws by tilting the outboard motor main body 60 up based on a command from the wheelhouse 12 or the like while the vehicle is at anchor, for example. Further, the tilt device 54 tilts the outboard motor main body 60 for trimming based on a command from the wheelhouse 12 or the like during navigation.
  • the tilt device 54 includes a detection device 54b that detects the load applied to the outboard motor deck 27, and if the detected load is equal to or greater than a threshold value, a warning is given and the tilt-up is stopped. However, instead of this, only one of the warning and the suspension of tilt-up may be performed.
  • the detection device 54b may detect, for example, the load applied to the outboard motor deck 27 based on the magnitude of the output of the actuator 54a, or may detect the load applied to the outboard motor deck 27 from a strain gauge attached to the outboard motor deck 27 or the like.
  • the load applied to the outboard motor deck 27 may be detected based on the information.
  • the warning may be, for example, an auditory warning using a warning sound or the like, or a visual warning using a warning lamp or the like.
  • FIG. 7 is a side view showing a connecting portion between the mounting portion 50 and the outboard motor main body 60.
  • the swivel portion 57 includes an upper arm 57a and a lower arm 57b that protrude rearward.
  • the upper arm 57a supports the front end of the housing 67 above the motor 62 via the damper 58
  • the lower arm 57b supports the front end of the housing 67 below the motor 62 via the damper 58. are doing.
  • the upper arm 57a supports the motor 62 above the center of gravity
  • the lower arm 57b supports the motor 62 below the center of gravity.
  • FIG. 8 is a top plan view of the connecting portion between the mounting portion 50 and the outboard motor main body 60.
  • the upper arm 57a supports two points spaced apart in the left-right direction L, R at the upper part of the front end of the housing 67
  • the lower arm 57b supports two places spaced apart in the left-right direction L, R at the lower part of the front end of the housing 67. Supporting places.
  • FIG. 9 is a side sectional view of the damper 58 of the upper arm 57a viewed from the left L.
  • the damper 58 includes an insertion member 58c, an elastic member 58d, a front regulating portion 58a, and a rear regulating portion 58b.
  • the insertion member 58c is a shaft member extending in the front-rear direction Fr, Rr, and is attached to the rear end of the upper arm 57a, and protrudes from the rear end of the upper arm 57a toward the rear Rr.
  • the insertion member 58c is inserted through an insertion hole 67h that penetrates the housing 67 in the front and rear directions Fr and Rr.
  • the elastic member 58d is made of a rubber material or the like, and is joined to the outer peripheral surface of the insertion member 58c and the inner peripheral surface of the insertion hole 67h.
  • the front regulating portion 58a is installed in front of the insertion hole 67h of the insertion member 58c, and regulates the forward impact absorption margin by the damper 58.
  • the rear regulating portion 58b is installed at the rear Rr of the insertion hole 67h in the insertion member 58c, and regulates the rearward shock absorption margin by the damper 58.
  • the damper 58 of the lower arm 57b is also configured in the same manner as the damper 58 of the upper arm 57a shown above.
  • FIG. 10 is a top plan view of the electric outboard motor 70.
  • the control unit 61 is arranged on the rear Rr side of the motor 62. Therefore, the control unit 61 does not overlap the motor 62 when viewed from above.
  • the DC cable 16 passes through the first space S1, the second space S2, and the third space S3 in order.
  • FIG. 11 is a plan view showing a modification of FIG. 10.
  • the DC cable 16 may be detoured to the side of the control section 61 and then connected to the rear surface of the control section 61.
  • FIG. 12 is an exploded plan view showing the control section 61 and the motor 62. Note that the DC cable 16 and the like are shown in the case of the above-mentioned modification. As described above, the control unit 61 and the motor 62 are electrically connected to each other by engaging the motor connector 62b of the motor case 62a with the control unit connector 61d of the control unit case 61a.
  • the upper end of the motor 62 and the upper end of the control unit 61 are located below the upper end Z of the attached part. Therefore, the upper end of the outboard motor main body 60 can be lowered. Thereby, the design of the ship 100 can be improved. Moreover, since the outboard motor main body 60 is difficult to see from the hull 10 side, the visibility of the rear Rr is opened. As described above, the design and visibility of the ship 100 can be improved. Furthermore, since the motor 62 and the control section 61 are easier to downsize than the engine, the upper end of the motor 62 and the upper end of the control section 61 can be easily placed at a lower position.
  • the cover 68 that houses them can also be made smaller. Therefore, the upper cover of the cover 68 can also be made smaller, and the upper cover can be easily attached and detached during maintenance, improving maintainability. Furthermore, since the upper cover can be made smaller, it is possible to suppress rattling of the cover 68 that may occur when the upper cover is heavy and the noise caused by the rattling.
  • the control unit 61 is arranged at a position that does not overlap the motor 62 when viewed from above. Therefore, the control unit 61 and the motor 62 are not aligned in the vertical direction. Therefore, it becomes easier to reduce the vertical dimension of the outboard motor main body 60, and in this respect, it becomes easier to lower the upper end of the outboard motor main body 60.
  • the control unit 61 is arranged at the rear Rr of the motor 62. Therefore, compared to the case where the control section 61 is disposed on the side of the motor 62, it is possible to suppress the weight balance of the outboard motor main body 60 from becoming biased to the left or right side.
  • the mounting portion 50 supports a portion of the outboard motor main body 60 above the motor 62 and a portion of the outboard motor main body 60 below the motor 62. In other words, the mounting portion 50 supports the outboard motor main body 60 on both sides above and below the motor 62. Thereby, the outboard motor main body 60 can be stably supported.
  • the outboard motor main body 60 is lowered too much, it will be difficult to access the electric outboard motor 70 from the boat.
  • the upper end of the cover 68 may be located above the upper end Z of the attached part, the outboard motor main body 60 will not be placed too low. Therefore, this disadvantage can be avoided.
  • the motor 62 and the control unit 61 are installed so that their upper end surfaces are horizontal. Therefore, the height of the upper end of the upper end surface can be suppressed compared to the case where the upper end surface is arranged obliquely.
  • the outboard motor main body 60 includes a heat exchanger 69 that extends below the water surface Ws on which the hull 10 floats.
  • the heat exchanger 69 cools the object to be cooled by discharging heat generated in the object to be cooled, including at least one of the motor 62 and the control unit 61, to water below the water surface Ws. Therefore, it is necessary to extend the heat exchanger 69 from the vicinity of the object to be cooled, that is, from the vicinity of the motor 62 and the control section 61 to below the water surface.
  • the heat exchanger 69 can be downsized in the vertical direction.
  • the boat 100 includes an outboard motor deck 27 directly above the outboard motor main body 60. Therefore, the space directly above the outboard motor main body 60 can be effectively used as a deck. Therefore, the space utilization in the ship 100 can be improved. Further, since the outboard motor deck 27 is provided directly above the outboard motor main body 60, a crew member can board the boat from the rear of the hull 10 via the outboard motor deck 27. Therefore, the accessibility to the hull 10 from the rear is also improved. Furthermore, since the outboard motor main body 60 includes the electric motor 62, it is easier to downsize the outboard motor main body 60 and to suppress the height of the upper end of the outboard motor main body 60 compared to a case where the outboard motor main body 60 is provided with an engine. Therefore, it is easy to install the outboard motor deck 27 directly above the outboard motor main body 60.
  • Both decks, the hull deck 21 and the outboard motor deck 27, are continuously adjacent to each other without an obstacle protruding above the upper surface of the hull deck 21 interposed between the two decks. Therefore, it becomes easier for the sailor to move back and forth between the hull deck 21 and the outboard motor deck 27, improving convenience.
  • the upper surface of the hull deck 21 and the upper surface of the outboard motor deck 27 are flush with each other. As a result, the flush deck area including the hull deck 21 and the outboard motor deck 27 is increased, and the convenience of the deck is improved.
  • the outboard motor deck 27 is rotatably mounted around the front side 27x. Therefore, the outboard motor deck 27 can be flipped up around the front side portion 27x. Therefore, maintenance of the outboard motor main body 60 located below the outboard motor deck 27 becomes easier.
  • the electric outboard motor 70 When the electric outboard motor 70 is tilted up by the actuator 54a, the electric outboard motor 70 presses the outboard motor deck 27. rotates. Therefore, the outboard motor deck 27 does not interfere with the tilt up of the outboard motor main body 60.
  • the tilt device 54 includes a detection device 54b that detects the load applied to the outboard motor deck 27, and issues a warning and stops tilt-up when the detected load is equal to or higher than a threshold value. Therefore, when a sailor attempts to tilt up the outboard motor while riding on the outboard motor deck 27, a warning can be given and the tilting up can be canceled.
  • the outboard motor main body 60 is tilted up for trimming while the vessel 100 is sailing, as long as the outboard motor main body 60 is within the range of the gap G, the outboard motor main body 60 will be tilted up against the lower surface of the outboard motor deck 27. None come into contact with. Therefore, rotation of the outboard motor deck 27 in conjunction with the trim is suppressed.
  • the outboard motor deck 27 has a side wall portion 27a that overlaps at least a portion of the upper portion of the outboard motor main body 60 in a side view seen in the left and right direction. Therefore, when the rear of the boat 100 is viewed from the side, at least a portion of the upper portion of the outboard motor main body 60 is hidden by the side wall portion 27a. Therefore, the design of the boat 100 is improved, and the upper part of the outboard motor main body 60 can be protected.
  • the hull deck 21 extends to the rear of the front side 27x of the outboard motor deck 27 on the side of the outboard motor deck 27. Therefore, when the outboard motor deck 27 is flipped up about the front side portion 27x, the sailor can access the electric outboard motor 70 from the side, so that the electric outboard motor 70 can be easily maintained.
  • the DC cable 16 passes through a first space S1 between the lower surface of the outboard motor deck 27 and the mounting portion 50. Thereby, the DC cable 16 can be efficiently extended from the battery 15 to the outboard motor main body 60 in the shortest possible distance. Furthermore, by allowing the DC cable 16 to pass through the first space S1 in this manner, it becomes easier to straighten the DC cable 16 without bending it as much as possible. Therefore, even when the DC cable 16 is hard and difficult to bend, it becomes easier to wire the DC cable 16.
  • the DC cable 16 passes through a third space S3 between the ceiling surface of the cover 68 and the top surface of the motor 62. This also allows the DC cable 16 to be efficiently extended to the control unit 61 over a distance as short as possible. Furthermore, by allowing the DC cable 16 to pass through the third space S3 in this manner, it becomes easier to straighten the DC cable 16 without bending it as much as possible.
  • the upper end surface of the motor 62 is located at a lower position than the upper end surface of the control section 61.
  • the third space S3 is formed above the motor 62 by the height difference between the upper end surface of the motor 62 and the upper end surface of the control unit 61, so that it becomes easier to secure the third space.
  • the control unit 61 and the motor 62 are electrically connected to each other by engaging the control unit connector 61d on the front side of the control unit case 61a and the motor connector 62b on the rear side of the motor case 62a. Therefore, the control unit 61 and the motor 62 can be placed close to each other. Thereby, the outboard motor main body 60 can be made smaller.
  • the lower main unit 60b When turning, the lower main unit 60b is rotated relative to the upper main unit 60a, which has a control section 61 and a motor 62. Therefore, the control unit 61 and the motor 62 do not rotate, and the DC cable 16 that supplies power to them also does not rotate. Therefore, damage to the DC cable 16 can be suppressed. Furthermore, since there is no need for a space for bending the DC cable 16 when turning, or for extra length of the DC cable 16 for bending, the outboard motor main body 60 can be made smaller.
  • FIG. 13 is a side view showing the electric outboard motor 70 of the second embodiment.
  • the swivel portion 57 includes a plurality of brackets 59 spaced apart in the left and right directions L and R instead of the upper arm 57a and lower arm 57b in the first embodiment.
  • Each bracket 59 is L-shaped and has a vertical portion 59a extending in the vertical direction and a horizontal portion 59b extending rearward from the lower end of the vertical portion 59a.
  • the rear surface of the vertical portion 59a is in contact with the front surface of the housing 67, and the upper surface of the horizontal portion 59b is in contact with the lower surface of the housing 67.
  • the swivel portion 57 supports an outboard motor main body 60 by a bracket 59.
  • the following effects can be obtained.
  • the mounting portion 50 is provided with a support portion that protrudes rearward
  • the outboard motor main body 60 is supported by the rear end of the support portion
  • the entire electric outboard motor 70 is moved forward and backward by the support portion. It gets bigger.
  • the electric outboard motor 70 as a whole can be made smaller in the longitudinal direction.
  • FIG. 14 is a side view showing an electric outboard motor 70 according to the third embodiment.
  • the third space S3 is between the inner side of the cover 68 and the side of the housing 67, and between the inner side of the cover 68 and the side of the motor 62.
  • the DC cable 16 passes through the third space S3 and extends to the control section 61.
  • the upper end surface of the motor 62 can be arranged at a higher position than the upper end surface of the control section 61, and the degree of freedom in the vertical arrangement of the motor 62 is increased.
  • FIG. 15 is a side view showing an electric outboard motor 70 according to the fourth embodiment.
  • the outboard motor main body 60 When the outboard motor main body 60 is not tilted up, the upper surface of the outboard motor main body 60 comes into contact with the lower surface of the outboard motor deck 27.
  • One outboard motor deck 27 may be provided from the left end to the right end of the rear portion of the vessel 100 so as to straddle the left and right electric outboard motors 70 .
  • the outboard motor deck 27 may not have the rear wall portion 27b. That is, the outboard motor deck 27 does not need to overlap the outboard motor main body 60 when viewed from the rear. Further, the outboard motor deck 27 does not need to have the side wall portion 27a. That is, the outboard motor deck 27 does not need to overlap the outboard motor main body 60 in a side view seen in the left-right direction. According to such a configuration, the shape of the outboard motor deck 27 can be made simple.
  • the motor 62 may be a DC motor and the inverter 61c may be omitted from the control unit 61.
  • the damper 58 may be omitted and each arm 57a, 57b may directly support the housing 67 without using the damper 58.

Abstract

The present invention increases the design quality and a field of rear vision of a vessel.　An electric outboard motor 70 comprises an outboard motor main body 60 and a mounting portion 50. The outboard motor main body 60 comprises a propeller 66, an electric motor 62 that drives the propeller 66, and a control unit 61 that controls the motor 62. The mounting portion 50 mounts the outboard motor main body 60 to the rear of a hull 10. The upper end of the motor 62 and the upper end of the control unit 61 are positioned below the upper end Z of the rear surface of a portion of the hull 10 to which the mounting portion 50 is mounted.

Description

電動船外機および船舶Electric outboard motors and ships
　本発明は、船体の後部に取り付けられる船外機に関する。 The present invention relates to an outboard motor that is attached to the rear of a boat.
　船外機としては、ガソリン等を燃料とするエンジンを備えるものが一般的である。 Outboard motors are generally equipped with engines that use gasoline or the like as fuel.
特開２０２１－１４６９３２号公報Japanese Patent Application Publication No. 2021-146932
　しかしながら、近年は、二酸化炭素の排出を低減して地球環境上の悪影響を低減する等の観点から、エンジンの代わりに、電動モータを使用することが望まれる。本発明者らは、電動モータを備える船外機である電動船外機を備える船舶には、デザイン性、視界性の面において、さらなる改良の余地がある点に着目した。 However, in recent years, it has become desirable to use electric motors instead of engines in order to reduce carbon dioxide emissions and reduce the negative impact on the global environment. The present inventors have focused on the fact that there is room for further improvement in terms of design and visibility for ships equipped with electric outboard motors that are outboard motors.
　本発明は、上記事情に鑑みてなされたものであり、船舶のデザイン性および視界性を向上させることを目的とする。 The present invention has been made in view of the above circumstances, and aims to improve the design and visibility of ships.
　本発明者らは、船体における電動船外機が取り付けられる部分の後面の上端よりも下方に、モータの上端および制御部の上端を配置すれば、船舶のデザイン性および視界性を向上させることができることを見出して、本発明に至った。本発明は、以下の（１）～（１４）の構成の電動船外機、および（１５）の構成の船舶である。 The present inventors have found that by locating the upper end of the motor and the upper end of the control unit below the upper end of the rear surface of the part of the hull where the electric outboard motor is attached, the design and visibility of the ship can be improved. We have discovered what we can do and have come up with the present invention. The present invention is an electric outboard motor having the following configurations (1) to (14), and a marine vessel having the configuration (15).
（１）プロペラと、前記プロペラを駆動する電動のモータと、前記モータを制御する制御部と、を備える船外機本体と、
　前記船外機本体を船体の後部に対して取り付ける取付け部と、
　を備え、前記船体における前記取付け部が取り付けられる部分の後面の上端よりも下方に、前記モータの上端および前記制御部の上端が位置する、電動船外機。 (1) an outboard motor body including a propeller, an electric motor that drives the propeller, and a control section that controls the motor;
a mounting portion for mounting the outboard motor main body to the rear of the hull;
An electric outboard motor, wherein an upper end of the motor and an upper end of the control unit are located below an upper end of a rear surface of a portion of the hull to which the attachment portion is attached.
　本構成によれば、モータの上端および制御部の上端を低い位置に配することによって、船外機本体の上端を低くできる。それにより、船舶のデザイン性を向上させることができる。しかも、船外機本体が船体側から見え難いため、後方の視界が開ける。以上、本構成によれば、船舶のデザイン性および視界性を向上させることができる。しかも、モータおよび制御部は、エンジンに比べて小型化し易いため、モータの上端および制御部の上端を低い位置に配し易い。 According to this configuration, by arranging the upper end of the motor and the upper end of the control unit at a lower position, the upper end of the outboard motor main body can be lowered. Thereby, the design of the ship can be improved. Moreover, since the outboard motor itself is difficult to see from the hull side, visibility to the rear is widened. As described above, according to this configuration, the design and visibility of the ship can be improved. Moreover, since the motor and the control section are easier to downsize than the engine, the upper end of the motor and the upper end of the control section can be easily placed at a lower position.
（２）前記制御部は、上面視において前記モータと重ならない、前記（１）に記載の電動船外機。 (2) The electric outboard motor according to (1), wherein the control section does not overlap the motor when viewed from above.
　本構成によれば、制御部とモータとが上下方向に並ばない。そのため、船外機本体の上下方向の寸法を小さくし易くなり、この点でも、船外機本体の上端を低くし易くなる。 According to this configuration, the control unit and the motor are not aligned in the vertical direction. Therefore, it becomes easier to reduce the vertical dimension of the outboard motor main body, and in this respect, it becomes easier to lower the upper end of the outboard motor main body.
（３）前記制御部は、前記モータの後方に配置される、前記（２）に記載の電動船外機。 (3) The electric outboard motor according to (2), wherein the control section is disposed behind the motor.
　本構成によれば、制御部をモータの側方に配置する場合に比べて、重量バランスが船幅方向の一方に偏るのを抑制できる。 According to this configuration, it is possible to suppress the weight balance from being biased to one side in the ship width direction, compared to the case where the control unit is disposed on the side of the motor.
（４）前記船外機本体は、前記モータおよび前記制御部を格納するカバーを備え、
　前記制御部は、前記モータよりも後方にあり、
　前記カバーの天井面と前記モータの上面との間にはスペースがあり、
　前記船体にバッテリが搭載されており、
　前記バッテリから前記スペースを通過して前記制御部にまで延在するＤＣケーブルが設置されている、
　前記（１）～（３）のいずれか１つに記載の電動船外機。 (4) the outboard motor main body includes a cover that houses the motor and the control section;
The control unit is located behind the motor,
There is a space between the ceiling surface of the cover and the top surface of the motor,
A battery is mounted on the hull,
A DC cable is installed that extends from the battery through the space to the control unit.
The electric outboard motor according to any one of (1) to (3) above.
　本構成によれば、カバーの天井面とモータの上端との間にあるスペースを利用してＤＣケーブルを配線することによって、ＤＣケーブルを効率よく極力短い距離でバッテリからモータにまで延ばすことができる。さらに、当該スペースを通過させることによって、ＤＣケーブルを極力曲げずに真っすぐ延ばし易くなる。そのため、ＤＣケーブルが硬くて曲げにくい場合等にも、ＤＣケーブルを配線し易くなる。 According to this configuration, by wiring the DC cable using the space between the ceiling surface of the cover and the upper end of the motor, the DC cable can be efficiently extended from the battery to the motor in the shortest possible distance. . Furthermore, by passing the DC cable through the space, it becomes easier to straighten the DC cable without bending it as much as possible. Therefore, even when the DC cable is hard and difficult to bend, it becomes easier to wire the DC cable.
（５）前記モータの上端面は、前記制御部の上端面よりも低い位置にある、前記（４）に記載の電動船外機。 (5) The electric outboard motor according to (4), wherein the upper end surface of the motor is located at a lower position than the upper end surface of the control section.
　モータの上端面と制御部の上端面との高低差の分だけ、モータの上方に前述のスペースが形成されるため、当該スペースを確保し易くなる。 Since the above-mentioned space is formed above the motor by the difference in height between the upper end surface of the motor and the upper end surface of the control section, it becomes easier to secure the space.
（６）前記船外機本体は、前記モータおよび前記制御部を格納するカバーを備え、
　前記制御部は、前記モータよりも後方にあり、
　前記カバーの内側面と前記モータの側面との間にはスペースがあり、
　前記船体にバッテリが搭載されており、
　前記バッテリから、前記スペースを通過して前記制御部にまで延在するＤＣケーブルが設置されている、
　前記（１）～（３）のいずれか１つに記載の電動船外機。 (6) the outboard motor main body includes a cover that houses the motor and the control section;
The control unit is located behind the motor,
There is a space between the inner surface of the cover and the side surface of the motor,
A battery is mounted on the hull,
A DC cable is installed extending from the battery to the control unit through the space.
The electric outboard motor according to any one of (1) to (3) above.
　本構成によれば、ＤＣケーブルがモータの側方にあるスペースを通過するので、モータの上方にスペースを形成する必要がない。そのため、モータの上端面を、制御部の上端面よりも高い位置に配置できる等、モータの上下方向の配置の自由度が高まる。 According to this configuration, since the DC cable passes through the space on the side of the motor, there is no need to form a space above the motor. Therefore, the upper end surface of the motor can be arranged at a higher position than the upper end surface of the control section, and the degree of freedom in the arrangement of the motor in the vertical direction is increased.
（７）前記船外機本体は、前記モータおよび前記制御部を格納するカバーを備え、
　前記カバーの上部に、上方に突出する膨出部があり、
　前記膨出部の内側にスペースがあり、
　前記船体にバッテリが搭載されており、
　前記バッテリから前記スペースを通過して前記制御部にまで延在するＤＣケーブルが設置されている、
　前記（１）～（６）のいずれか１つに記載の電動船外機。 (7) The outboard motor main body includes a cover that houses the motor and the control section,
The top of the cover has a bulge that projects upward;
There is a space inside the bulge,
A battery is mounted on the hull,
A DC cable is installed that extends from the battery through the space to the control unit.
The electric outboard motor according to any one of (1) to (6) above.
　本構成によれば、膨出部の内側のスペースを利用してＤＣケーブルを配線することによって、ＤＣケーブルを効率よく極力短い距離でバッテリから制御部にまで延ばすことができる。さらに、当該スペースを通過させることによって、ＤＣケーブルを極力曲げずに真っすぐ延ばし易くなる。そのため、ＤＣケーブルが硬くて曲げにくい場合等にも、ＤＣケーブルを配線し易くなる。 According to this configuration, by wiring the DC cable using the space inside the bulge, the DC cable can be efficiently extended from the battery to the control unit in the shortest possible distance. Furthermore, by passing the DC cable through the space, it becomes easier to straighten the DC cable without bending it as much as possible. Therefore, even when the DC cable is hard and difficult to bend, it becomes easier to wire the DC cable.
（８）前記取付け部は、前記船外機本体における前記モータの重心よりも上側部分と、前記船外機本体における前記モータの重心よりも下側部分と、を支持している、前記（１）～（７）のいずれか１つに記載の電動船外機。 (8) The mounting portion supports a portion of the outboard motor body above the center of gravity of the motor and a portion of the outboard motor body below the center of gravity of the motor. ) to (7).
　本構成によれば、船外機本体におけるモータよりも上下両側を支持することによって、安定に船外機本体を支持することができる。 According to this configuration, by supporting both sides above and below the motor in the outboard motor main body, the outboard motor main body can be stably supported.
（９）前記取付け部は、上下方向に延在する鉛直部と、前記鉛直部の下端から後方に延在する水平部とを有する側面視でＬ字状のブラケットを備え、前記ブラケットによって、前記船外機本体を支持している、前記（１）～（７）のいずれか１つに記載の電動船外機。 (9) The mounting portion includes a bracket that is L-shaped in side view and has a vertical portion extending in the vertical direction and a horizontal portion extending rearward from the lower end of the vertical portion, and the bracket The electric outboard motor according to any one of (1) to (7) above, which supports an outboard motor main body.
　取付け部に、例えば後方に突出する支持部を設けて、その支持部の後端部によって船外機本体を支持した場合には、電動船外機全体が支持部によって前後方向に大きくなってしまう。その点、本構成によれば、Ｌ字状のブラケットによって船外機本体を支持することによって、電動船外機全体を前後方向に小型化できる。 For example, if a support part that protrudes rearward is provided at the mounting part and the outboard motor body is supported by the rear end of the support part, the entire electric outboard motor becomes larger in the longitudinal direction due to the support part. . In this regard, according to the present configuration, by supporting the outboard motor main body with the L-shaped bracket, the entire electric outboard motor can be downsized in the longitudinal direction.
（１０）前記船外機本体は、前記モータおよび前記制御部を格納するカバーを備え、
　前記カバーの上端は、前記船体における前記取付け部が取り付けられる部分の後面の上端よりも上方に位置している、前記（１）～（９）のいずれか１つに記載の電動船外機。 (10) The outboard motor main body includes a cover that houses the motor and the control section,
The electric outboard motor according to any one of (1) to (9), wherein an upper end of the cover is located above an upper end of a rear surface of a portion of the hull to which the attachment portion is attached.
　船外機本体があまりに下過ぎると、船上から船外機本体にアクセスし難いといった弊害が生じる。その点、本構成によれば、カバーの上端は、船体における取付け部が取り付けられる部分の後面の上端よりも上方に位置しているので、船外機本体があまりに下過ぎるといったことがない。そのため、当該弊害を回避することができる。 If the outboard motor body is lowered too much, it will be difficult to access the outboard motor body from the boat. In this regard, according to the present configuration, the upper end of the cover is located above the upper end of the rear surface of the portion of the hull to which the attachment portion is attached, so that the outboard motor body does not fall too far down. Therefore, this disadvantage can be avoided.
（１１）前記モータおよび前記制御部のうちの少なくとも一方は、上端面が水平になるように設置される、前記（１）～（１０）のいずれか１つに記載の電動船外機。 (11) The electric outboard motor according to any one of (1) to (10), wherein at least one of the motor and the control section is installed such that an upper end surface thereof is horizontal.
　本構成によれば、上端面が斜めになるように設置されるよりも、上端面の上端の高さが抑えられる。 According to this configuration, the height of the upper end of the upper end surface can be suppressed than when the upper end surface is installed so as to be oblique.
（１２）前記制御部は、前記モータを制御する制御回路と、前記制御回路を格納する制御部ケースと、前記制御部ケースに設けられた制御部コネクタと、を備え、
　前記モータは、ロータと、前記ロータを回転させるステータと、前記ロータおよび前記ステータを格納するモータケースと、前記モータケースに設けられたモータコネクタと、を備え、
　前記制御部コネクタと前記モータコネクタとが係合し合うことによって、前記制御部と前記モータとが互いに電気的に接続されている、
　前記（１）～（１１）のいずれか１つに記載の電動船外機。 (12) The control unit includes a control circuit that controls the motor, a control unit case that stores the control circuit, and a control unit connector provided in the control unit case,
The motor includes a rotor, a stator that rotates the rotor, a motor case that stores the rotor and the stator, and a motor connector provided in the motor case,
The control unit and the motor are electrically connected to each other by engagement of the control unit connector and the motor connector;
The electric outboard motor according to any one of (1) to (11) above.
　本構成によれば、制御部ケースとモータケースとをコネクタによって電気的に結合することができるので、制御部とモータとを近接配置できる。それにより、船外機本体を小型化できる。 According to this configuration, the control unit case and the motor case can be electrically coupled by the connector, so the control unit and the motor can be placed close to each other. Thereby, the outboard motor main body can be made smaller.
（１３）前記船体が浮かぶ水面よりも下方にまで延在する熱交換器を備え、
　前記熱交換器は、前記モータおよび前記制御部のうちの少なくとも一方を含む冷却対象で発生した熱を前記水面よりも下方の水に排熱することによって、前記冷却対象を冷却する、
　前記（１）～（１２）のいずれか１つに記載の電動船外機。 (13) comprising a heat exchanger extending below the water surface on which the hull floats;
The heat exchanger cools the object to be cooled by discharging heat generated in the object to be cooled, including at least one of the motor and the control unit, to water below the water surface.
The electric outboard motor according to any one of (1) to (12) above.
　本構成によれば、熱交換器を冷却対象付近、つまりモータや制御部の付近から水面よりも下方にまで延在させる必要がある。その点、本構成で引用する前記（１）の構成によれば、モータの上端および制御部の上端が低い位置に配されるため、冷却対象から水面までの距離を抑えることができる。それにより、熱交換器を上下方向に小型化できる。 According to this configuration, it is necessary to extend the heat exchanger from the vicinity of the object to be cooled, that is, the vicinity of the motor and the control unit, to below the water surface. In this regard, according to the configuration (1) cited above in this configuration, the upper end of the motor and the upper end of the control unit are arranged at a low position, so that the distance from the object to be cooled to the water surface can be suppressed. Thereby, the heat exchanger can be downsized in the vertical direction.
(１４)前記モータの動力を前記プロペラに伝えるためのドライブシャフトを有し、
　前記船外機本体は、前記制御部と前記モータとを有する本体上側ユニットと、前記プロペラを有する本体下側ユニットと、を有し、
　前記船体の進行方向を変える旋回時には、前記本体上側ユニットに対して前記本体下側ユニットが、前記ドライブシャフトの軸線回りに回転する、
　前記(１)～（１３）のいずれか１つに記載の電動船外機。 (14) having a drive shaft for transmitting power of the motor to the propeller;
The outboard motor main body includes an upper main body unit having the control section and the motor, and a lower main body unit having the propeller,
When turning to change the traveling direction of the hull, the lower main body unit rotates around the axis of the drive shaft with respect to the upper main unit.
The electric outboard motor according to any one of (1) to (13) above.
　本構成によれば、旋回時には、本体上側ユニットに対して本体下側ユニットが回転する。そのため、制御部とモータとが回転せず、それらに電力を供給するケーブルも回転しない。そのため、ケーブルの破損を抑制できる。しかも、旋回時にケーブルを撓ませるためのスペースや、撓ませるためのケーブルの余分な長さ等が不要となるため、船外機本体の小型化にも繋がる。 According to this configuration, when turning, the lower main unit rotates with respect to the upper main unit. Therefore, the control unit and motor do not rotate, and the cable that supplies power to them also does not rotate. Therefore, damage to the cable can be suppressed. Furthermore, since there is no need for a space for bending the cable during turning or an extra length of the cable for bending, the outboard motor itself can be made smaller.
（１５）前記（１）～（１４）のいずれか１つに記載の電動船外機と、
　前記船体と、
　上面視において前記船体の後部の少なくとも一部と重なる船体デッキと、
　前記船外機本体の上方に設けられており、上面視において前記船外機本体の少なくとも一部と重なる船外機デッキと、
　を備える船舶。 (15) the electric outboard motor according to any one of (1) to (14) above;
The hull;
a hull deck that overlaps at least a portion of the rear part of the hull when viewed from above;
an outboard motor deck provided above the outboard motor main body and overlapping at least a portion of the outboard motor main body when viewed from above;
A ship equipped with
　本構成によれば、船外機の直上のスペースを船外機デッキとして利用できるので、スペースの利用性が向上する。 According to this configuration, the space directly above the outboard motor can be used as an outboard motor deck, improving the usability of the space.
　以上の通り、前記（１）の構成によれば、電動船外機において、デザイン性、視界性、を向上させることができる。さらに、前記（１）を引用する前記（２）～（１５）の構成によれば、それぞれの追加の効果が得られる。 As described above, according to the configuration (1) above, it is possible to improve the design and visibility of the electric outboard motor. Furthermore, according to the configurations (2) to (15) above that refer to (1) above, each additional effect can be obtained.
第１実施形態の船舶を示す平面図である。It is a top view showing a ship of a 1st embodiment. 船舶を示す側面図である。It is a side view showing a ship. 電動船外機を示す側面図である。FIG. 2 is a side view showing an electric outboard motor. 船外機デッキを跳ね上げた状態を示す側面図である。FIG. 3 is a side view showing a state in which the outboard motor deck is flipped up. 船外機本体をチルトアップさせた状態を示す側面図である。FIG. 3 is a side view showing the outboard motor body in a tilted up state. 取付け部のチルト装置を示す側面断面図である。FIG. 3 is a side sectional view showing the tilt device of the attachment part. 取付け部と船外機本体との接続部分を示す側面図である。FIG. 3 is a side view showing a connecting portion between the mounting portion and the outboard motor main body. 同接続部分を示す平面図である。It is a top view showing the same connection part. 同接続部分のダンパーを示す側面断面図である。It is a side sectional view showing the damper of the same connection part. 電動船外機を示す平面図である。FIG. 2 is a plan view showing an electric outboard motor. 図１０の変更例を示す平面図である。11 is a plan view showing a modification of FIG. 10. FIG. モータおよび制御部を示す分解平面図である。FIG. 3 is an exploded plan view showing a motor and a control section. 第２実施形態の電動船外機を示す側面図である。FIG. 7 is a side view showing an electric outboard motor according to a second embodiment. 第３実施形態の電動船外機を示す平面図である。FIG. 7 is a plan view showing an electric outboard motor according to a third embodiment. 第４実施形態の電動船外機を示す側面図である。FIG. 7 is a side view showing an electric outboard motor according to a fourth embodiment.
　以下、本発明の実施形態について、図面を参照しつつ説明する。ただし、本発明は、以下の実施形態に何ら限定されるものではなく、本発明の趣旨を逸脱ない範囲内で適宜変更して実施できる。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments, and can be implemented with appropriate modifications within the scope of the spirit of the present invention.
　［第１実施形態］
　図１は、第１実施形態の船舶１００を上から見た平面図である。以下、船舶１００の前側を「前Ｆｒ」といい、船舶１００の後側を「後Ｒｒ」といい、前Ｆｒを向いた状態における左側を「左Ｌ」といい、前Ｆｒを向いた状態における右側を「右Ｒ」という。なお、以下でいう「左」および「右」は側方と読み替えてもよく、「左右方向」は、「船幅方向」と読み替えてもよい。 [First embodiment]
FIG. 1 is a top plan view of a ship 100 according to the first embodiment. Hereinafter, the front side of the vessel 100 is referred to as "front Fr", the rear side of the vessel 100 is referred to as "rear Rr", the left side when facing the front Fr is referred to as "left L", and the left side when facing the front Fr is referred to as "left L". The right side is called "right R." Note that "left" and "right" hereinafter may be read as lateral, and "left-right direction" may be read as "width direction".
　船舶１００は、船体１０と、２つの電動船外機７０と、船体デッキ２１と、２つの船外機デッキ２７と、を備える。船体１０は、操舵室１２を備える。船体１０には、バッテリ１５が搭載されている。バッテリ１５と電動船外機７０との間には、バッテリ１５の電力を電動船外機７０に供給するためのＤＣケーブル１６が配線されている。 The ship 100 includes a hull 10, two electric outboard motors 70, a hull deck 21, and two outboard motor decks 27. The hull 10 includes a wheelhouse 12 . A battery 15 is mounted on the hull 10. A DC cable 16 is wired between the battery 15 and the electric outboard motor 70 for supplying power from the battery 15 to the electric outboard motor 70.
　電動船外機７０は、船舶１００の後部における左右Ｌ，Ｒの両端部に１つずつ設けられている。電動船外機７０は、船外機本体６０と取付け部５０とを備える。取付け部５０は、船外機本体６０を、船体１０の後部に対して取り付けている。 The electric outboard motors 70 are provided one at each end of the left and right sides L and R at the rear of the boat 100. The electric outboard motor 70 includes an outboard motor main body 60 and a mounting portion 50. The attachment portion 50 attaches the outboard motor main body 60 to the rear of the hull 10.
　船体デッキ２１は、船体１０の後部の直上において水平方向に延在している。本実施形態では、船体デッキ２１は、上面視において船体１０の後部全体と重なっているが、重なっていない部分があってもよい。つまり、船体デッキ２１は、上面視において船体１０の後部の少なくとも一部と重なっていればよい。船体デッキ２１は、本実施形態では、船体１０と別体であるが、船体１０と一体であってもよい。 The hull deck 21 extends horizontally directly above the rear of the hull 10. In this embodiment, the hull deck 21 overlaps the entire rear part of the hull 10 when viewed from above, but there may be a portion that does not overlap. That is, the hull deck 21 only needs to overlap at least a portion of the rear part of the hull 10 when viewed from above. Although the hull deck 21 is separate from the hull 10 in this embodiment, it may be integrated with the hull 10.
　船外機デッキ２７は、電動船外機７０毎に設けられている。各船外機デッキ２７は、自身に対応する船外機本体６０の直上において水平方向に延在している。本実施形態では、各船外機デッキ２７は、自身に対応する船外機本体６０の全体と重なっているが、重なっていない部分があってもよい。つまり、船外機デッキ２７は、上面視において船外機本体６０の少なくとも一部と重なっていればよい。 The outboard motor deck 27 is provided for each electric outboard motor 70. Each outboard motor deck 27 extends horizontally directly above the corresponding outboard motor main body 60. In this embodiment, each outboard motor deck 27 overlaps the entirety of its corresponding outboard motor main body 60, but there may be portions that do not overlap. In other words, the outboard motor deck 27 only needs to overlap at least a portion of the outboard motor main body 60 when viewed from above.
　船外機デッキ２７の前辺部２７ｘは、ヒンジ等によって、船体デッキ２１に取り付けられている。それによって、船外機デッキ２７は、自身の前辺部２７ｘを軸に回動可能に、つまり自身の前辺部２７ｘを軸に跳ね上げ可能に構成されている。船体デッキ２１は、船外機デッキ２７の左右内方において、船外機デッキ２７の前辺部２７ｘよりも後方にまで延在している。 The front side 27x of the outboard motor deck 27 is attached to the hull deck 21 by a hinge or the like. As a result, the outboard motor deck 27 is configured to be able to rotate around its own front side 27x, that is, to be able to flip up around its own front side 27x. The hull deck 21 extends inward from the left and right sides of the outboard motor deck 27 to the rear of the front side 27x of the outboard motor deck 27.
　図２は、船舶１００を左Ｌから見た側面図である。船体デッキ２１と船外機デッキ２７との両デッキは、例えば船体１０に備え付けられた座席等の障害物を挟まずに、つまり、両デッキ間に船体デッキ２１の上面よりも上方に突出する障害物を挟まずに、連続的に隣接し合っている。船体デッキ２１の上面と、前記船外機デッキ２７の上面とは面一である。 FIG. 2 is a side view of the ship 100 viewed from the left L. Both the hull deck 21 and the outboard engine deck 27 can be constructed without intervening obstacles such as seats provided on the hull 10, that is, without any obstructions that protrude above the upper surface of the hull deck 21 between the two decks. Continuously adjacent to each other without any objects in between. The upper surface of the hull deck 21 and the upper surface of the outboard motor deck 27 are flush with each other.
　船外機デッキ２７は、左右外方の端部に側壁部２７ａを備えると共に、後端部に後壁部２７ｂを備える。側壁部２７ａは、船外機本体６０の側方の上方から船外機本体６０の側方に突出して、船外機本体６０の上部の少なくとも一部を側方側から覆っている。そのため、側壁部２７ａは、左右方向に見た側面視において、船外機本体６０の上部の少なくとも一部と重なる。 The outboard motor deck 27 includes side wall portions 27a at the left and right outer ends, and a rear wall portion 27b at the rear end. The side wall portion 27a protrudes from above the side of the outboard motor main body 60 to the side of the outboard motor main body 60, and covers at least a portion of the upper part of the outboard motor main body 60 from the side. Therefore, the side wall portion 27a overlaps at least a portion of the upper portion of the outboard motor main body 60 when viewed from the side in the left-right direction.
　後壁部２７ｂは、船外機本体６０の後方の上方から船外機本体６０の後方に突出して、船外機本体６０の上部の少なくとも一部を後Ｒｒ側から覆っている。そのため、側壁部２７ａは、後面視において、船外機本体６０の上部の少なくとも一部と重なる。 The rear wall portion 27b protrudes from above the rear of the outboard motor main body 60 to the rear of the outboard motor main body 60, and covers at least a portion of the upper part of the outboard motor main body 60 from the rear Rr side. Therefore, the side wall portion 27a overlaps at least a portion of the upper portion of the outboard motor main body 60 when viewed from the rear.
　図３は、図２の電動船外機７０を拡大した図である。取付け部５０は、固定部５１とスイベル部５７とチルト装置５４とを備える。固定部５１は、クランプ機構等であって、船体１０の後部にあるトランサム１９に固定されている。スイベル部５７の上端部は、左右方向Ｌ，Ｒに延在するチルト軸５６を介して、固定部５１の上端部に軸着されている。スイベル部５７は、船外機本体６０の前端部を支持している。チルト装置５４は、固定部５１に対して、チルト軸５６を中心にスイベル部５７を回動させることによって、船外機本体６０をチルトさせる。チルト装置５４の詳細については、後述する。 FIG. 3 is an enlarged view of the electric outboard motor 70 of FIG. 2. The attachment section 50 includes a fixed section 51, a swivel section 57, and a tilt device 54. The fixing part 51 is a clamp mechanism or the like, and is fixed to the transom 19 at the rear of the hull 10. The upper end portion of the swivel portion 57 is pivotally attached to the upper end portion of the fixed portion 51 via a tilt shaft 56 extending in the left and right directions L and R. The swivel portion 57 supports the front end portion of the outboard motor main body 60. The tilt device 54 tilts the outboard motor main body 60 by rotating the swivel portion 57 about the tilt shaft 56 with respect to the fixed portion 51 . Details of the tilt device 54 will be described later.
　船外機本体６０は、制御部６１と、モータ６２と、減速ギア６３と、ドライブシャフト６４と、ベベルギア６５と、プロペラ６６と、ハウジング６７と、カバー６８と、熱交換器６９とを備える。ハウジング６７は、制御部６１とモータ６２と減速ギア６３とを格納している。カバー６８は、図示略のアッパーカバーとロワーカバーとに分割されており、ハウジング６７のさらに外側から覆うことによって、内側に、ハウジング６７ごと、制御部６１とモータ６２と減速ギア６３とを格納している。カバー６８は、内部をメンテナンスできるように、アッパーカバーをロワーカバーから取り外し可能に構成されている。 The outboard motor main body 60 includes a control section 61, a motor 62, a reduction gear 63, a drive shaft 64, a bevel gear 65, a propeller 66, a housing 67, a cover 68, and a heat exchanger 69. The housing 67 houses a control section 61, a motor 62, and a reduction gear 63. The cover 68 is divided into an upper cover and a lower cover (not shown), and by covering the housing 67 from the outside, the control unit 61, motor 62, and reduction gear 63 are housed inside together with the housing 67. There is. The cover 68 is configured such that the upper cover can be removed from the lower cover so that the interior can be maintained.
　モータ６２は、電動モータであって、より具体的には、交流電力によって稼働する交流モータである。制御部６１は、モータ６２を制御するための装置であって、モータ６２の後Ｒｒに設置されている。制御部６１およびモータ６２は、いずれも上端面が水平になるように配置されている。モータ６２の上端面は、制御部６１の上端面よりも低い位置にある。なお、ここでいう「制御部６１の上端面」は、後述する制御部ケース６１ａの上端面であり、ここでいう「モータ６２の上端面」は、後述するモータケース６２ａの上端面である。 The motor 62 is an electric motor, and more specifically, an AC motor operated by AC power. The control unit 61 is a device for controlling the motor 62, and is installed at the rear Rr of the motor 62. The control unit 61 and the motor 62 are both arranged so that their upper end surfaces are horizontal. The upper end surface of the motor 62 is located at a lower position than the upper end surface of the control section 61. Note that the "upper end surface of the control section 61" here is the upper end surface of the control section case 61a, which will be described later, and the "upper end surface of the motor 62" here is the upper end surface of the motor case 62a, which will be described later.
　船外機デッキ２７の下面と取付け部５０との間には、第１スペースＳ１がある。カバー６８の前部の上部には、上方に突出する膨出部６８ａがあり、その内側には、第２スペースＳ２がある。カバー６８の天井面とハウジング６７の上面との間における、カバー６８の天井面とモータ６２の上面との間に位置する部分には、第３スペースＳ３がある。ＤＣケーブル１６は、バッテリ１５から、第１スペースＳ１、第２スペースＳ２、第３スペースＳ３を順に通過して、制御部６１にまで延在している。 There is a first space S1 between the lower surface of the outboard motor deck 27 and the mounting portion 50. At the top of the front part of the cover 68, there is a bulge 68a that protrudes upward, and inside the bulge 68a there is a second space S2. A third space S3 is located between the ceiling surface of the cover 68 and the top surface of the housing 67 and between the ceiling surface of the cover 68 and the top surface of the motor 62. The DC cable 16 extends from the battery 15 to the control unit 61, passing through the first space S1, the second space S2, and the third space S3 in this order.
　制御部６１は、制御部ケース６１ａと制御回路６１ｂとインバータ６１ｃと制御部コネクタ６１ｄとを備える。制御部ケース６１ａは、制御回路６１ｂとインバータ６１ｃとを格納している。制御回路６１ｂおよびインバータ６１ｃは、ＤＣケーブル１６を介してバッテリ１５に電気的に接続されており、バッテリ１５の電力が供給される。インバータ６１ｃは、バッテリ１５から供給される直流電力を交流電力に変換する。制御部コネクタ６１ｄは、変換された交流電力を出力するアウトプットであって、制御部ケース６１ａの前面に設けられている。制御回路６１ｂは、操舵室１２からの指令に基づいて、インバータ６１ｃを制御することによって、モータ６２を制御する。 The control unit 61 includes a control unit case 61a, a control circuit 61b, an inverter 61c, and a control unit connector 61d. The control unit case 61a houses a control circuit 61b and an inverter 61c. The control circuit 61b and the inverter 61c are electrically connected to the battery 15 via the DC cable 16, and are supplied with power from the battery 15. Inverter 61c converts DC power supplied from battery 15 into AC power. The control unit connector 61d is an output that outputs the converted AC power, and is provided on the front surface of the control unit case 61a. The control circuit 61b controls the motor 62 by controlling the inverter 61c based on commands from the wheelhouse 12.
　モータ６２は、モータケース６２ａと、モータコネクタ６２ｂと、ステータ６２ｃと、ロータ６２ｄと、モータシャフト６２ｅとを備える。モータコネクタ６２ｂは、交流電力を入力するインプットであって、モータケース６２ａの後面に設けられている。制御部コネクタ６１ｄとモータコネクタ６２ｂとが係合し合うことによって、インバータ６１ｃとモータ６２とが互いに電気的に接続されている。 The motor 62 includes a motor case 62a, a motor connector 62b, a stator 62c, a rotor 62d, and a motor shaft 62e. The motor connector 62b is an input for inputting AC power, and is provided on the rear surface of the motor case 62a. The inverter 61c and the motor 62 are electrically connected to each other by engaging the control unit connector 61d and the motor connector 62b.
　モータシャフト６２ｅは、上下方向に延在するシャフトである。ロータ６２ｄは、モータシャフト６２ｅに固定されており、モータシャフト６２ｅと共に回転する。ステータ６２ｃは、インバータ６１ｃから供給される交流電力によって、ロータ６２ｄを回転させることによって、モータシャフト６２ｅを回転させる。 The motor shaft 62e is a shaft that extends in the vertical direction. The rotor 62d is fixed to the motor shaft 62e and rotates together with the motor shaft 62e. The stator 62c rotates the motor shaft 62e by rotating the rotor 62d using AC power supplied from the inverter 61c.
　ドライブシャフト６４は、上下方向に延在するシャフトである。ドライブシャフト６４の上端部は、減速ギア６３を介して、モータシャフト６２ｅの下端部に歯合している。 The drive shaft 64 is a shaft that extends in the vertical direction. The upper end of the drive shaft 64 meshes with the lower end of the motor shaft 62e via the reduction gear 63.
　プロペラ６６は、前後方向Ｆｒ，Ｒｒに延在するプロペラシャフト６６ａと、プロペラシャフト６６ａに固定されてプロペラシャフト６６ａと共に回転するプロペラ本体６６ｂと、を備える。プロペラシャフト６６ａの前端部は、ベベルギア６５を介して、ドライブシャフト６４の下端部に歯合している。ベベルギア６５は、単に回転軸方向を変換するものであってもよいし、当該変換に加えて、回転速度の減速を行うものであってもよい。 The propeller 66 includes a propeller shaft 66a extending in the front and rear directions Fr and Rr, and a propeller main body 66b fixed to the propeller shaft 66a and rotating together with the propeller shaft 66a. The front end of the propeller shaft 66a meshes with the lower end of the drive shaft 64 via a bevel gear 65. The bevel gear 65 may simply change the rotational axis direction, or may reduce the rotational speed in addition to the conversion.
　以上により、モータ６２によってプロペラ６６が駆動される構造が実現されている。船外機本体６０の上側部分である本体上側ユニット６０ａは、制御部６１とモータ６２と減速ギア６３とハウジング６７とカバー６８とを含む。他方、船外機本体６０の下側部分である本体下側ユニット６０ｂは、ベベルギア６５とプロペラ６６とを含む。本体下側ユニット６０ｂは、本体上側ユニット６０ａに対して、ドライブシャフト６４の軸線回りに回動可能に取り付けられている。 As described above, a structure in which the propeller 66 is driven by the motor 62 is realized. The upper body unit 60a, which is the upper portion of the outboard motor body 60, includes a control section 61, a motor 62, a reduction gear 63, a housing 67, and a cover 68. On the other hand, a lower body unit 60b, which is a lower portion of the outboard motor body 60, includes a bevel gear 65 and a propeller 66. The lower main unit 60b is rotatably attached to the upper main unit 60a around the axis of the drive shaft 64.
　本体上側ユニット６０ａは、ハウジング６７内に回転装置６０ｃを有する。回転装置６０ｃは、操舵室１２からの指令に基づいて、本体上側ユニット６０ａに対して、ドライブシャフト６４の軸線回りに本体下側ユニット６０ｂを回転させることによって、プロペラ６６による推進方向を変更して、船体１０の進行方向を変更する。具体的には、回転装置６０ｃは、例えばモータ６２とは別の図示しないモータを備えており、そのモータの回転力を、例えばウォームギアセットを介して本体下側ユニット６０ｂに伝えることによって、ドライブシャフト６４の軸線回りに本体下側ユニット６０ｂを回転させる。 The main body upper unit 60a has a rotation device 60c inside the housing 67. The rotation device 60c changes the direction of propulsion by the propeller 66 by rotating the lower body unit 60b around the axis of the drive shaft 64 relative to the upper body unit 60a based on a command from the wheelhouse 12. , change the traveling direction of the hull 10. Specifically, the rotating device 60c includes, for example, a motor (not shown) that is separate from the motor 62, and transmits the rotational force of the motor to the lower unit 60b of the main body via, for example, a worm gear set, thereby controlling the drive shaft. The lower main unit 60b is rotated around the axis 64.
　以下、トランサム１９における固定部５１が取り付けられる部分の後面の上端を、「被取付け部上端Ｚ」という。制御部６１の上端およびモータ６２の上端のいずれについても、被取付け部上端Ｚよりも下方に位置する。なお、ここでいう「制御部６１の上端」は、制御部ケース６１ａの上端であり、ここでいう「モータ６２の上端」は、モータケース６２ａの上端である。他方、カバー６８の上端は、被取付け部上端Ｚよりも上方に位置してもよい。 Hereinafter, the upper end of the rear surface of the portion of the transom 19 to which the fixed portion 51 is attached will be referred to as the "attached portion upper end Z." Both the upper end of the control section 61 and the upper end of the motor 62 are located below the upper end Z of the attached section. Note that the "upper end of the control section 61" here is the upper end of the control section case 61a, and the "upper end of the motor 62" here is the upper end of the motor case 62a. On the other hand, the upper end of the cover 68 may be located above the upper end Z of the attached part.
　熱交換器６９は、船体１０が浮かぶ水面Ｗｓよりも下方にまで延在している。熱交換器６９は、モータ６２および制御部６１のうちの少なくとも一方を含む冷却対象で発生した熱を水面Ｗｓよりも下方の水に排熱することによって、冷却対象を冷却する。具体的には、熱交換器６９は、冷却対象付近において、冷却対象と熱交換した伝熱媒体を、水面Ｗｓよりも下方に導いて、水面下の水と熱交換してから、再び冷却対象付近に戻すことを繰り返すことによって、冷却対象を冷却する。前述の伝熱媒体は、例えば、熱交換器６９内を循環する水であってもよいし、熱交換器６９内を循環する空気であってもよいし、熱交換器６９内を循環するオイルであってもよい。 The heat exchanger 69 extends below the water surface Ws on which the hull 10 floats. The heat exchanger 69 cools the object to be cooled by discharging heat generated in the object to be cooled, including at least one of the motor 62 and the control unit 61, to water below the water surface Ws. Specifically, in the vicinity of the object to be cooled, the heat exchanger 69 guides the heat transfer medium that has exchanged heat with the object to be cooled below the water surface Ws, exchanges heat with the water below the water surface, and then returns the medium to the object to be cooled. The object to be cooled is cooled by repeatedly returning it to the vicinity. The aforementioned heat transfer medium may be, for example, water circulating within the heat exchanger 69, air circulating within the heat exchanger 69, or oil circulating within the heat exchanger 69. It may be.
　船外機本体６０がチルトアップしていない状態において、船外機デッキ２７の下面と、船外機本体６０のカバー６８との間には、隙間Ｇが形成される。 When the outboard motor main body 60 is not tilted up, a gap G is formed between the lower surface of the outboard motor deck 27 and the cover 68 of the outboard motor main body 60.
　図４は、図３に示す状態から、前辺部２７ｘを軸に船外機デッキ２７を跳ね上げた状態を示す側面図である。これにより、船外機本体６０は、上方に露出する。 FIG. 4 is a side view showing a state in which the outboard motor deck 27 is flipped up about the front side portion 27x from the state shown in FIG. As a result, the outboard motor main body 60 is exposed upward.
　図５は、図３に示す状態から、船外機本体６０をチルトアップさせた状態を示す側面図である。チルト装置５４によって船外機本体６０を前述の隙間Ｇ以上にチルトアップさせた時点で、船外機本体６０が船外機デッキ２７の下面に当接する。具体的には、例えば、プロペラ６６の上端が水面Ｗｓよりも上に現れる時点で、前述の隙間Ｇがゼロになって、船外機本体６０が船外機デッキ２７の下面に当接する。当接後は、船外機本体６０が船外機デッキ２７を押圧することによって、船外機本体６０のチルトアップに連動して船外機デッキ２７が回動する。 FIG. 5 is a side view showing a state in which the outboard motor main body 60 is tilted up from the state shown in FIG. When the outboard motor main body 60 is tilted up beyond the above-mentioned gap G by the tilt device 54, the outboard motor main body 60 comes into contact with the lower surface of the outboard motor deck 27. Specifically, for example, at the point when the upper end of the propeller 66 appears above the water surface Ws, the aforementioned gap G becomes zero and the outboard motor main body 60 comes into contact with the lower surface of the outboard motor deck 27. After the contact, the outboard motor main body 60 presses the outboard motor deck 27, so that the outboard motor deck 27 rotates in conjunction with the tilt up of the outboard motor main body 60.
　図６は、チルト装置５４を示す側面断面図である。チルト装置５４は、アクチュエータ５４ａを備える。アクチュエータ５４ａは、固定部５１に対して、チルト軸５６を中心にスイベル部５７を回動させることによって、船外機本体６０をチルトさせる。アクチュエータ５４ａは、例えば図に示すように、油圧シリンダ等のシリンダであってもよいし、モータ６２とは別のモータ等であってもよい。チルト装置５４は、例えば停泊中において、操舵室１２等からの指令に基づいて船外機本体６０をチルトアップさせることによって、船外機本体６０を水面Ｗｓから引き上げる。また、チルト装置５４は、航行中に、操舵室１２等からの指令に基づいて、トリムのために船外機本体６０をチルトさせる。 FIG. 6 is a side sectional view showing the tilt device 54. The tilt device 54 includes an actuator 54a. The actuator 54a tilts the outboard motor main body 60 by rotating the swivel portion 57 about the tilt shaft 56 with respect to the fixed portion 51. For example, as shown in the figure, the actuator 54a may be a cylinder such as a hydraulic cylinder, or may be a motor separate from the motor 62. The tilt device 54 raises the outboard motor main body 60 from the water surface Ws by tilting the outboard motor main body 60 up based on a command from the wheelhouse 12 or the like while the vehicle is at anchor, for example. Further, the tilt device 54 tilts the outboard motor main body 60 for trimming based on a command from the wheelhouse 12 or the like during navigation.
　チルト装置５４は、船外機デッキ２７に加わる荷重を検知する検知装置５４ｂを備え、検知された荷重が閾値以上の場合には、警告を行うと共にチルトアップを中止する。ただし、これに代えて、警告およびチルトアップの中止のうちのいずれか一方のみを行うようにしてもよい。検知装置５４ｂは、例えば、アクチュエータ５４ａの出力の大きさに基づいて、船外機デッキ２７に加わる荷重を検知するものであってもよいし、船外機デッキ２７等に取り付けられた歪ゲージからの情報に基づいて、船外機デッキ２７に加わる荷重を検知するものであってもよい。警告は、例えば、警告音等による聴覚に訴える警告であってもよいし、警告ランプ等による視覚に訴える警告であってもよい。 The tilt device 54 includes a detection device 54b that detects the load applied to the outboard motor deck 27, and if the detected load is equal to or greater than a threshold value, a warning is given and the tilt-up is stopped. However, instead of this, only one of the warning and the suspension of tilt-up may be performed. The detection device 54b may detect, for example, the load applied to the outboard motor deck 27 based on the magnitude of the output of the actuator 54a, or may detect the load applied to the outboard motor deck 27 from a strain gauge attached to the outboard motor deck 27 or the like. The load applied to the outboard motor deck 27 may be detected based on the information. The warning may be, for example, an auditory warning using a warning sound or the like, or a visual warning using a warning lamp or the like.
　図７は、取付け部５０と船外機本体６０との接続部分を示す側面図である。スイベル部５７は、後方に突出する上アーム５７ａおよび下アーム５７ｂを備える。上アーム５７ａは、ダンパー５８を介して、ハウジング６７の前端部におけるモータ６２よりも上方を支持し、下アーム５７ｂは、ダンパー５８を介して、ハウジング６７の前端部におけるモータ６２よりも下方を支持している。それによって、上アーム５７ａは、モータ６２の重心よりも上方を支持し、下アーム５７ｂは、モータ６２の重心よりも下方を支持している。 FIG. 7 is a side view showing a connecting portion between the mounting portion 50 and the outboard motor main body 60. The swivel portion 57 includes an upper arm 57a and a lower arm 57b that protrude rearward. The upper arm 57a supports the front end of the housing 67 above the motor 62 via the damper 58, and the lower arm 57b supports the front end of the housing 67 below the motor 62 via the damper 58. are doing. Thereby, the upper arm 57a supports the motor 62 above the center of gravity, and the lower arm 57b supports the motor 62 below the center of gravity.
　図８は、取付け部５０と船外機本体６０との接続部分を上から見た平面図である。上アーム５７ａおよび下アーム５７ｂは、それぞれ２本ずつある。上アーム５７ａは、ハウジング６７の前端部における上部の左右方向Ｌ，Ｒに離間した２か所を支持し、下アーム５７ｂは、ハウジング６７の前端部における下部の左右方向Ｌ，Ｒに離間した２か所を支持している。 FIG. 8 is a top plan view of the connecting portion between the mounting portion 50 and the outboard motor main body 60. There are two upper arms 57a and two lower arms 57b. The upper arm 57a supports two points spaced apart in the left-right direction L, R at the upper part of the front end of the housing 67, and the lower arm 57b supports two places spaced apart in the left-right direction L, R at the lower part of the front end of the housing 67. Supporting places.
　図９は、上アーム５７ａのダンパー５８を左Ｌから見た側面断面図である。ダンパー５８は、挿通部材５８ｃと弾性部材５８ｄと前側の規制部５８ａと後側の規制部５８ｂとを備える。挿通部材５８ｃは、前後方向Ｆｒ，Ｒｒに延在する軸材であって、上アーム５７ａの後端部に取り付けられて、上アーム５７ａの後端部から後Ｒｒに突出している。挿通部材５８ｃは、ハウジング６７を前後方向Ｆｒ，Ｒｒに貫通する挿通孔６７ｈを挿通している。弾性部材５８ｄはゴム材等であって、挿通部材５８ｃの外周面と挿通孔６７ｈの内周面とに接合されている。 FIG. 9 is a side sectional view of the damper 58 of the upper arm 57a viewed from the left L. The damper 58 includes an insertion member 58c, an elastic member 58d, a front regulating portion 58a, and a rear regulating portion 58b. The insertion member 58c is a shaft member extending in the front-rear direction Fr, Rr, and is attached to the rear end of the upper arm 57a, and protrudes from the rear end of the upper arm 57a toward the rear Rr. The insertion member 58c is inserted through an insertion hole 67h that penetrates the housing 67 in the front and rear directions Fr and Rr. The elastic member 58d is made of a rubber material or the like, and is joined to the outer peripheral surface of the insertion member 58c and the inner peripheral surface of the insertion hole 67h.
　前側の規制部５８ａは、挿通部材５８ｃにおける挿通孔６７ｈよりも前Ｆｒに設置されており、ダンパー５８による前方への衝撃吸収しろを規制する。後側の規制部５８ｂは、挿通部材５８ｃにおける挿通孔６７ｈよりも後Ｒｒに設置されており、ダンパー５８による後方への衝撃吸収しろを規制する。 The front regulating portion 58a is installed in front of the insertion hole 67h of the insertion member 58c, and regulates the forward impact absorption margin by the damper 58. The rear regulating portion 58b is installed at the rear Rr of the insertion hole 67h in the insertion member 58c, and regulates the rearward shock absorption margin by the damper 58.
　下アーム５７ｂのダンパー５８についても、以上に示した上アーム５７ａのダンパー５８と同様に構成されている。 The damper 58 of the lower arm 57b is also configured in the same manner as the damper 58 of the upper arm 57a shown above.
　図１０は、電動船外機７０を上から見た平面図である。制御部６１は、前述の通り、モータ６２の後Ｒｒ側に配置されている。そのことから、制御部６１は、上面視においてモータ６２と重ならない。ＤＣケーブル１６は、前述の通り、第１スペースＳ１，第２スペースＳ２，第３スペースＳ３を順に通過している。 FIG. 10 is a top plan view of the electric outboard motor 70. As described above, the control unit 61 is arranged on the rear Rr side of the motor 62. Therefore, the control unit 61 does not overlap the motor 62 when viewed from above. As described above, the DC cable 16 passes through the first space S1, the second space S2, and the third space S3 in order.
　図１１は、図１０の変更例を示す平面図である。ハウジング６７の上面とカバー６８の天井面との間との間における、制御部６１の上面とカバー６８の天井面との間に位置する部分に、ＤＣケーブル１６を通す十分な隙間が無い場合には、この図１１に示すように、ＤＣケーブル１６を、制御部６１の側方に迂回させてから、制御部６１の後面に接続してもよい。 FIG. 11 is a plan view showing a modification of FIG. 10. When there is not a sufficient gap for passing the DC cable 16 between the upper surface of the control unit 61 and the ceiling surface of the cover 68 between the upper surface of the housing 67 and the ceiling surface of the cover 68. As shown in FIG. 11, the DC cable 16 may be detoured to the side of the control section 61 and then connected to the rear surface of the control section 61.
　図１２は、制御部６１およびモータ６２を示す分解平面図である。なお、ＤＣケーブル１６等については、前述の変更例の場合を示している。前述の通り、制御部ケース６１ａにある制御部コネクタ６１ｄに、モータケース６２ａにあるモータコネクタ６２ｂが係合することにより、制御部６１とモータ６２とが互いに電気的に接続される。 FIG. 12 is an exploded plan view showing the control section 61 and the motor 62. Note that the DC cable 16 and the like are shown in the case of the above-mentioned modification. As described above, the control unit 61 and the motor 62 are electrically connected to each other by engaging the motor connector 62b of the motor case 62a with the control unit connector 61d of the control unit case 61a.
　以下に、船外機本体６０の構成およびその効果についてまとめる。 The configuration of the outboard motor main body 60 and its effects will be summarized below.
　被取付け部上端Ｚよりも下方に、モータ６２の上端および制御部６１の上端が位置する。そのため、船外機本体６０の上端を低くできる。それにより、船舶１００のデザイン性を向上させることができる。しかも、船外機本体６０が船体１０側から見え難いため、後Ｒｒの視界が開ける。以上、船舶１００のデザイン性および視界性を向上させることができる。しかも、モータ６２および制御部６１は、エンジンに比べて小型化し易いため、モータ６２の上端および制御部６１の上端を低い位置に配し易い。 The upper end of the motor 62 and the upper end of the control unit 61 are located below the upper end Z of the attached part. Therefore, the upper end of the outboard motor main body 60 can be lowered. Thereby, the design of the ship 100 can be improved. Moreover, since the outboard motor main body 60 is difficult to see from the hull 10 side, the visibility of the rear Rr is opened. As described above, the design and visibility of the ship 100 can be improved. Furthermore, since the motor 62 and the control section 61 are easier to downsize than the engine, the upper end of the motor 62 and the upper end of the control section 61 can be easily placed at a lower position.
　モータ６２および制御部６１を、エンジンに比べて小型化できるため、それらを格納するカバー６８も小型化できる。そのため、カバー６８のアッパーカバーも小型化でき、メンテナンス時のアッパーカバーの着脱が容易になり、メンテナンス性が向上する。また、アッパーカバーを小型化できるため、アッパーカバーが重い場合に生じ得るカバー６８のがたつきや、それによる騒音も抑制できる。 Since the motor 62 and the control unit 61 can be made smaller than the engine, the cover 68 that houses them can also be made smaller. Therefore, the upper cover of the cover 68 can also be made smaller, and the upper cover can be easily attached and detached during maintenance, improving maintainability. Furthermore, since the upper cover can be made smaller, it is possible to suppress rattling of the cover 68 that may occur when the upper cover is heavy and the noise caused by the rattling.
　制御部６１は、上面視においてモータ６２と重ならない位置に配置される。そのため、制御部６１とモータ６２とが上下方向に並ばない。そのため、船外機本体６０の上下方向の寸法を小さくし易くなり、この点でも、船外機本体６０の上端を低くし易くなる。 The control unit 61 is arranged at a position that does not overlap the motor 62 when viewed from above. Therefore, the control unit 61 and the motor 62 are not aligned in the vertical direction. Therefore, it becomes easier to reduce the vertical dimension of the outboard motor main body 60, and in this respect, it becomes easier to lower the upper end of the outboard motor main body 60.
　制御部６１は、モータ６２の後Ｒｒに配置される。そのため、制御部６１をモータ６２の側方に配置する場合に比べて、船外機本体６０の重量バランスが左右一方に偏るのを抑制できる。 The control unit 61 is arranged at the rear Rr of the motor 62. Therefore, compared to the case where the control section 61 is disposed on the side of the motor 62, it is possible to suppress the weight balance of the outboard motor main body 60 from becoming biased to the left or right side.
　取付け部５０は、船外機本体６０におけるモータ６２よりも上側部分と、船外機本体６０におけるモータ６２よりも下側部分と、を支持している。つまり、取付け部５０は、船外機本体６０におけるモータ６２よりも上下両側を支持している。それにより、安定に船外機本体６０を支持できる。 The mounting portion 50 supports a portion of the outboard motor main body 60 above the motor 62 and a portion of the outboard motor main body 60 below the motor 62. In other words, the mounting portion 50 supports the outboard motor main body 60 on both sides above and below the motor 62. Thereby, the outboard motor main body 60 can be stably supported.
　船外機本体６０があまりに下過ぎると、船上から電動船外機７０にアクセスし難いといった弊害が生じる。その点、カバー６８の上端は、被取付け部上端Ｚよりも上方に位置していてもよいので、船外機本体６０があまりに下過ぎるといったことがない。そのため、当該弊害を回避できる。 If the outboard motor main body 60 is lowered too much, it will be difficult to access the electric outboard motor 70 from the boat. In this regard, since the upper end of the cover 68 may be located above the upper end Z of the attached part, the outboard motor main body 60 will not be placed too low. Therefore, this disadvantage can be avoided.
　モータ６２および制御部６１は、上端面が水平になるように設置される。そのため、上端面が斜めになるように配置される場合よりも、上端面の上端の高さが抑えられる。 The motor 62 and the control unit 61 are installed so that their upper end surfaces are horizontal. Therefore, the height of the upper end of the upper end surface can be suppressed compared to the case where the upper end surface is arranged obliquely.
　船外機本体６０は、船体１０が浮かぶ水面Ｗｓよりも下方にまで延在する熱交換器６９を備える。熱交換器６９は、モータ６２および制御部６１のうちの少なくとも一方を含む冷却対象で発生した熱を水面Ｗｓよりも下方の水に排熱することによって、冷却対象を冷却する。そのため、熱交換器６９を冷却対象付近、つまりモータ６２や制御部６１の付近から水面よりも下方にまで延在させる必要がある。その点、前述の通り、モータ６２の上端および制御部６１の上端が低い位置に配置されるため、冷却対象から水面までの距離を抑えることができる。それにより、熱交換器６９を上下方向に小型化できる。 The outboard motor main body 60 includes a heat exchanger 69 that extends below the water surface Ws on which the hull 10 floats. The heat exchanger 69 cools the object to be cooled by discharging heat generated in the object to be cooled, including at least one of the motor 62 and the control unit 61, to water below the water surface Ws. Therefore, it is necessary to extend the heat exchanger 69 from the vicinity of the object to be cooled, that is, from the vicinity of the motor 62 and the control section 61 to below the water surface. In this respect, as described above, since the upper end of the motor 62 and the upper end of the control unit 61 are arranged at a low position, the distance from the object to be cooled to the water surface can be suppressed. Thereby, the heat exchanger 69 can be downsized in the vertical direction.
　次に、船外機デッキ２７の構成およびその効果についてまとめる。 Next, the configuration of the outboard motor deck 27 and its effects will be summarized.
　船舶１００は、船外機本体６０の直上に船外機デッキ２７を備える。そのため、船外機本体６０の直上のスペースをデッキとして有効利用できる。そのため、船舶１００におけるスペースの利用性を向上させることができる。また、船外機本体６０の直上に船外機デッキ２７を備えるため、乗員は、船体１０の後方から船外機デッキ２７を介して船体１０内に乗船することができる。そのため、船体１０に対する後方からのアクセス性も向上する。しかも、船外機本体６０が電動のモータ６２を備えるので、エンジンを備える場合に比べて、船外機本体６０を小型化し易く、船外機本体６０の上端の高さを抑えやすい。そのため、船外機本体６０の直上に船外機デッキ２７を設置し易い。 The boat 100 includes an outboard motor deck 27 directly above the outboard motor main body 60. Therefore, the space directly above the outboard motor main body 60 can be effectively used as a deck. Therefore, the space utilization in the ship 100 can be improved. Further, since the outboard motor deck 27 is provided directly above the outboard motor main body 60, a crew member can board the boat from the rear of the hull 10 via the outboard motor deck 27. Therefore, the accessibility to the hull 10 from the rear is also improved. Furthermore, since the outboard motor main body 60 includes the electric motor 62, it is easier to downsize the outboard motor main body 60 and to suppress the height of the upper end of the outboard motor main body 60 compared to a case where the outboard motor main body 60 is provided with an engine. Therefore, it is easy to install the outboard motor deck 27 directly above the outboard motor main body 60.
　船体デッキ２１と船外機デッキ２７との両デッキが、両デッキ間に船体デッキ２１の上面よりも上方に突出する障害物を挟まずに、連続的に隣接し合っている。そのため、船員が、船体デッキ２１と船外機デッキ２７との間を行き来し易くなり、利便性が向上する。 Both decks, the hull deck 21 and the outboard motor deck 27, are continuously adjacent to each other without an obstacle protruding above the upper surface of the hull deck 21 interposed between the two decks. Therefore, it becomes easier for the sailor to move back and forth between the hull deck 21 and the outboard motor deck 27, improving convenience.
　船体デッキ２１の上面と船外機デッキ２７の上面とが面一である。それにより、船体デッキ２１と船外機デッキ２７とを含む面一のデッキ面積が大きくなり、デッキの利便性が向上する。 The upper surface of the hull deck 21 and the upper surface of the outboard motor deck 27 are flush with each other. As a result, the flush deck area including the hull deck 21 and the outboard motor deck 27 is increased, and the convenience of the deck is improved.
　船外機デッキ２７は、前辺部２７ｘを軸に回動可能に取り付けられている。そのため、船外機デッキ２７を、前辺部２７ｘを軸に跳ね上げることができる。そのため、船外機デッキ２７の下にある船外機本体６０をメンテナンスし易くなる。 The outboard motor deck 27 is rotatably mounted around the front side 27x. Therefore, the outboard motor deck 27 can be flipped up around the front side portion 27x. Therefore, maintenance of the outboard motor main body 60 located below the outboard motor deck 27 becomes easier.
　アクチュエータ５４ａによって電動船外機７０をチルトアップさせた際に、電動船外機７０が船外機デッキ２７を押圧することによって、船外機本体６０のチルトアップに連動して船外機デッキ２７が回動する。そのため、船外機デッキ２７は、船外機本体６０のチルトアップを邪魔しない。 When the electric outboard motor 70 is tilted up by the actuator 54a, the electric outboard motor 70 presses the outboard motor deck 27. rotates. Therefore, the outboard motor deck 27 does not interfere with the tilt up of the outboard motor main body 60.
　チルト装置５４は、船外機デッキ２７に加わる荷重を検知する検知装置５４ｂを備え、検知された荷重が閾値以上の場合には、警告およびチルトアップの中止を行う。そのため、船員が船外機デッキ２７に乗っている状態においてチルトアップさせようとした際に、警告すると共に、チルトアップを中止することができる。 The tilt device 54 includes a detection device 54b that detects the load applied to the outboard motor deck 27, and issues a warning and stops tilt-up when the detected load is equal to or higher than a threshold value. Therefore, when a sailor attempts to tilt up the outboard motor while riding on the outboard motor deck 27, a warning can be given and the tilting up can be canceled.
　船外機本体６０がチルトアップしていない状態において、船外機デッキ２７の下面と船外機本体６０との間に隙間Ｇがあり、船外機本体６０が所定量チルトアップした時点で、船外機本体６０が船外機デッキ２７の下面に当接する。そのため、船外機本体６０がチルトアップしていない状態において、船員が船外機デッキ２７に乗ったとしても、船外機デッキ２７からは、振動が船外機本体６０に伝わらない。また、船舶１００の航行時において、トリムのために船外機本体６０をチルトアップさせた際にも、当該隙間Ｇの範囲内であれば、船外機本体６０が船外機デッキ２７の下面に当接することがない。そのため、トリムに連動して、船外機デッキ２７が回動してしまうのが抑制される。 When the outboard motor main body 60 is not tilted up, there is a gap G between the lower surface of the outboard motor deck 27 and the outboard motor main body 60, and when the outboard motor main body 60 is tilted up by a predetermined amount, The outboard motor main body 60 contacts the lower surface of the outboard motor deck 27. Therefore, even if a sailor gets on the outboard motor deck 27 while the outboard motor main body 60 is not tilted up, vibrations will not be transmitted from the outboard motor deck 27 to the outboard motor main body 60. Furthermore, even when the outboard motor main body 60 is tilted up for trimming while the vessel 100 is sailing, as long as the outboard motor main body 60 is within the range of the gap G, the outboard motor main body 60 will be tilted up against the lower surface of the outboard motor deck 27. Never come into contact with. Therefore, rotation of the outboard motor deck 27 in conjunction with the trim is suppressed.
　船外機デッキ２７は、左右方向に見た側面視において、船外機本体６０の上部の少なくとも一部と重なる側壁部２７ａを有する。そのため、船舶１００の後部を側方から見た際に、側壁部２７ａによって船外機本体６０の上部の少なくとも一部が隠れる。そのため、船舶１００のデザイン性が向上すると共に、船外機本体６０の上部を保護できる。 The outboard motor deck 27 has a side wall portion 27a that overlaps at least a portion of the upper portion of the outboard motor main body 60 in a side view seen in the left and right direction. Therefore, when the rear of the boat 100 is viewed from the side, at least a portion of the upper portion of the outboard motor main body 60 is hidden by the side wall portion 27a. Therefore, the design of the boat 100 is improved, and the upper part of the outboard motor main body 60 can be protected.
　船体デッキ２１は、船外機デッキ２７の側方において、船外機デッキ２７の前辺部２７ｘよりも後方にまで延在している。そのため、船外機デッキ２７を前辺部２７ｘを軸に跳ね上げた際には、船員が電動船外機７０に側方からアクセスできるので、電動船外機７０を容易にメンテナンスできる。 The hull deck 21 extends to the rear of the front side 27x of the outboard motor deck 27 on the side of the outboard motor deck 27. Therefore, when the outboard motor deck 27 is flipped up about the front side portion 27x, the sailor can access the electric outboard motor 70 from the side, so that the electric outboard motor 70 can be easily maintained.
　次に、配線等およびその効果についてまとめる。 Next, we will summarize the wiring etc. and their effects.
　ＤＣケーブル１６は、船外機デッキ２７の下面と取付け部５０との間にある第１スペースＳ１を通過している。それによって、ＤＣケーブル１６を効率よく極力短い距離でバッテリ１５から船外機本体６０にまで延ばすことができる。さらに、このように第１スペースＳ１を通過させることによって、ＤＣケーブル１６を極力曲げずに真っすぐ延ばし易くなる。そのため、ＤＣケーブル１６が硬くて曲げにくい場合等にも、ＤＣケーブル１６を配線し易くなる。 The DC cable 16 passes through a first space S1 between the lower surface of the outboard motor deck 27 and the mounting portion 50. Thereby, the DC cable 16 can be efficiently extended from the battery 15 to the outboard motor main body 60 in the shortest possible distance. Furthermore, by allowing the DC cable 16 to pass through the first space S1 in this manner, it becomes easier to straighten the DC cable 16 without bending it as much as possible. Therefore, even when the DC cable 16 is hard and difficult to bend, it becomes easier to wire the DC cable 16.
　カバー６８の上部に、上方に突出する膨出部６８ａがあり、ＤＣケーブル１６は、膨出部６８ａの内側にある第２スペースＳ２を通過している。それによって、ＤＣケーブル１６を効率よく極力短い距離でカバー６８の外部から制御部６１にまで延ばすことができる。さらに、このように第２スペースＳ２を通過させることによっても、ＤＣケーブル１６を極力曲げずに真っすぐ延ばし易くなる。 There is a bulge 68a on the top of the cover 68 that protrudes upward, and the DC cable 16 passes through a second space S2 inside the bulge 68a. Thereby, the DC cable 16 can be efficiently extended from the outside of the cover 68 to the control unit 61 in the shortest possible distance. Furthermore, by allowing the DC cable 16 to pass through the second space S2 in this manner, it becomes easier to straighten the DC cable 16 without bending it as much as possible.
　ＤＣケーブル１６は、カバー６８の天井面とモータ６２の上面との間にある第３スペースＳ３を通過している。それによっても、ＤＣケーブル１６を効率よく極力短い距離で制御部６１にまで延ばすことができる。さらに、このように第３スペースＳ３を通過させることによっても、ＤＣケーブル１６を極力曲げずに真っすぐ延ばし易くなる。 The DC cable 16 passes through a third space S3 between the ceiling surface of the cover 68 and the top surface of the motor 62. This also allows the DC cable 16 to be efficiently extended to the control unit 61 over a distance as short as possible. Furthermore, by allowing the DC cable 16 to pass through the third space S3 in this manner, it becomes easier to straighten the DC cable 16 without bending it as much as possible.
　モータ６２の上端面は、制御部６１の上端面よりも低い位置にある。この場合、モータ６２の上端面と制御部６１の上端面との高低差の分だけ、モータ６２の上方に第３スペースＳ３が形成されるため、第３スペースを確保し易くなる。 The upper end surface of the motor 62 is located at a lower position than the upper end surface of the control section 61. In this case, the third space S3 is formed above the motor 62 by the height difference between the upper end surface of the motor 62 and the upper end surface of the control unit 61, so that it becomes easier to secure the third space.
　制御部ケース６１ａの前面にある制御部コネクタ６１ｄと、モータケース６２ａの後面にあるモータコネクタ６２ｂとが係合し合うことによって、制御部６１とモータ６２とが互いに電気的に接続されている。そのため、制御部６１とモータ６２とを近接配置できる。それにより、船外機本体６０を小型化できる。 The control unit 61 and the motor 62 are electrically connected to each other by engaging the control unit connector 61d on the front side of the control unit case 61a and the motor connector 62b on the rear side of the motor case 62a. Therefore, the control unit 61 and the motor 62 can be placed close to each other. Thereby, the outboard motor main body 60 can be made smaller.
　次に他の実施形態について説明する。以下の実施形態については、第１実施形態をベースにこれと異なる点を中心に説明し、第１実施形態と同一又は類似の点については、説明を適宜省略する。 Next, other embodiments will be described. The following embodiments will be described based on the first embodiment, focusing on points different from the first embodiment, and descriptions of the same or similar points as the first embodiment will be omitted as appropriate.
　旋回時には、制御部６１とモータ６２とを有する本体上側ユニット６０ａに対して、本体下側ユニット６０ｂを回転させる。そのため、制御部６１とモータ６２とが回転せず、それらに電力を供給するＤＣケーブル１６も回転しない。そのため、ＤＣケーブル１６の破損を抑制できる。しかも、旋回時にＤＣケーブル１６を撓ませるためのスペースや、撓ませるためのＤＣケーブル１６の余分な長さ等が不要となるため、船外機本体６０の小型化にも繋がる。 When turning, the lower main unit 60b is rotated relative to the upper main unit 60a, which has a control section 61 and a motor 62. Therefore, the control unit 61 and the motor 62 do not rotate, and the DC cable 16 that supplies power to them also does not rotate. Therefore, damage to the DC cable 16 can be suppressed. Furthermore, since there is no need for a space for bending the DC cable 16 when turning, or for extra length of the DC cable 16 for bending, the outboard motor main body 60 can be made smaller.
　［第２実施形態］
　図１３は、第２実施形態の電動船外機７０を示す側面図である。スイベル部５７は、第１実施形態でいう上アーム５７ａおよび下アーム５７ｂの代わりに、複数のブラケット５９を左右方向Ｌ，Ｒに間隔をおいて備える。各ブラケット５９は、上下方向に延在する鉛直部５９ａと、鉛直部５９ａの下端から後方に延在する水平部５９ｂとを有するＬ字状である。鉛直部５９ａの後面は、ハウジング６７の前面に当接し、水平部５９ｂの上面は、ハウジング６７下面に当接している。スイベル部５７は、ブラケット５９によって、船外機本体６０を支持している。 [Second embodiment]
FIG. 13 is a side view showing the electric outboard motor 70 of the second embodiment. The swivel portion 57 includes a plurality of brackets 59 spaced apart in the left and right directions L and R instead of the upper arm 57a and lower arm 57b in the first embodiment. Each bracket 59 is L-shaped and has a vertical portion 59a extending in the vertical direction and a horizontal portion 59b extending rearward from the lower end of the vertical portion 59a. The rear surface of the vertical portion 59a is in contact with the front surface of the housing 67, and the upper surface of the horizontal portion 59b is in contact with the lower surface of the housing 67. The swivel portion 57 supports an outboard motor main body 60 by a bracket 59.
　本実施形態によれば、次の効果が得られる。取付け部５０に、例えば後方に突出する支持部を設けて、その支持部の後端部によって船外機本体６０を支持した場合には、電動船外機７０全体が、支持部によって前後方向に大きくなってしまう。その点、本実施形態によれば、側面視でＬ字状のブラケット５９によって船外機本体６０を支持することによって、電動船外機７０全体を前後方向に小型化できる。 According to this embodiment, the following effects can be obtained. For example, when the mounting portion 50 is provided with a support portion that protrudes rearward, and the outboard motor main body 60 is supported by the rear end of the support portion, the entire electric outboard motor 70 is moved forward and backward by the support portion. It gets bigger. In this regard, according to the present embodiment, by supporting the outboard motor main body 60 with the L-shaped bracket 59 when viewed from the side, the electric outboard motor 70 as a whole can be made smaller in the longitudinal direction.
　［第３実施形態］
　図１４は、第３実施形態の電動船外機７０を示す側面図である。第３スペースＳ３は、カバー６８の内側面とハウジング６７の側面との間における、カバー６８の内側面とモータ６２の側面との間にある。ＤＣケーブル１６は、当該第３スペースＳ３を通過して制御部６１にまで延在している。 [Third embodiment]
FIG. 14 is a side view showing an electric outboard motor 70 according to the third embodiment. The third space S3 is between the inner side of the cover 68 and the side of the housing 67, and between the inner side of the cover 68 and the side of the motor 62. The DC cable 16 passes through the third space S3 and extends to the control section 61.
　本実施形態によれば、ＤＣケーブル１６がモータ６２の側方にある第３スペースＳ３を通過するので、モータ６２の上方に第３スペースＳ３を形成する必要がない。そのため、モータ６２の上端面を、制御部６１の上端面よりも高い位置に配置できる等、モータ６２の上下方向の配置の自由度が高まる。 According to this embodiment, since the DC cable 16 passes through the third space S3 on the side of the motor 62, there is no need to form the third space S3 above the motor 62. Therefore, the upper end surface of the motor 62 can be arranged at a higher position than the upper end surface of the control section 61, and the degree of freedom in the vertical arrangement of the motor 62 is increased.
　［第４実施形態］
　図１５は、第４実施形態の電動船外機７０を示す側面図である。船外機本体６０がチルトアップしていない状態において、船外機本体６０の上面が船外機デッキ２７の下面に当接する。 [Fourth embodiment]
FIG. 15 is a side view showing an electric outboard motor 70 according to the fourth embodiment. When the outboard motor main body 60 is not tilted up, the upper surface of the outboard motor main body 60 comes into contact with the lower surface of the outboard motor deck 27.
　本実施形態によれば、船員が船外機デッキ２７に乗った際に、その荷重の一部が船外機本体６０に伝わることにより、船外機デッキ２７が船外機本体６０によって支えられる。そのため、船外機デッキ２７に加わる負荷を軽減できる。 According to this embodiment, when a sailor rides on the outboard motor deck 27, part of the load is transmitted to the outboard motor main body 60, so that the outboard motor deck 27 is supported by the outboard motor main body 60. . Therefore, the load applied to the outboard motor deck 27 can be reduced.
　［変更形態］
　以上の実施形態は、例えば次のように変更して実施できる。船外機デッキ２７が、１つであって、左右の電動船外機７０を跨るように、船舶１００の後部の左端から右端にかけて設けられていてもよい。船外機デッキ２７が後壁部２７ｂを有しなくてもよい。つまり、船外機デッキ２７は、後面視において船外機本体６０と重ならなくてもよい。また、船外機デッキ２７が側壁部２７ａを有しなくてもよい。つまり、船外機デッキ２７は、左右方向に見た側面視において船外機本体６０と重ならなくてもよい。このような構成によれば、船外機デッキ２７の形状をシンプルにすることができる。 [Change form]
The above embodiment can be implemented with the following modifications, for example. One outboard motor deck 27 may be provided from the left end to the right end of the rear portion of the vessel 100 so as to straddle the left and right electric outboard motors 70 . The outboard motor deck 27 may not have the rear wall portion 27b. That is, the outboard motor deck 27 does not need to overlap the outboard motor main body 60 when viewed from the rear. Further, the outboard motor deck 27 does not need to have the side wall portion 27a. That is, the outboard motor deck 27 does not need to overlap the outboard motor main body 60 in a side view seen in the left-right direction. According to such a configuration, the shape of the outboard motor deck 27 can be made simple.
　モータ６２を直流モータにして、制御部６１からインバータ６１ｃを省いてもよい。ダンパー５８をなくして、各アーム５７ａ，５７ｂが、ダンパー５８を介さずに直接的にハウジング６７を支持するようにしてもよい。 The motor 62 may be a DC motor and the inverter 61c may be omitted from the control unit 61. The damper 58 may be omitted and each arm 57a, 57b may directly support the housing 67 without using the damper 58.
　１０　　船体
　１５　　バッテリ
　１６　　ＤＣケーブル
　２１　　船体デッキ
　２７　　船外機デッキ
　２７ａ　側壁部
　２７ｘ　船外機デッキの前辺部
　５０　　取付け部
　５１　　固定部
　５４　　チルト装置
　５４ａ　アクチュエータ
　５４ｂ　検知装置
　５７　　スイベル部
　６０　　船外機本体
　６１　　制御部
　６１ａ　制御部ケース
　６１ｂ　制御回路
　６１ｄ　制御部コネクタ
　６２　　モータ
　６２ａ　モータケース
　６２ｂ　モータコネクタ
　６２ｃ　ステータ
　６２ｄ　ロータ
　６６　　プロペラ
　６７　　ハウジング
　６８　　カバー
　６８ａ　膨出部
　６９　　熱交換器
　７０　　電動船外機
１００　　船舶
　Ｓ１　　第１スペース
　Ｓ２　　第２スペース
　Ｓ３　　第３スペース
　Ｗｓ　　水面
　Ｚ　　　船体における取付け部が取り付けられる部分の後面の上端 10 Hull 15 Battery 16 DC cable 21 Hull deck 27 Outboard motor deck 27a Side wall 27x Front side of outboard motor deck 50 Mounting part 51 Fixed part 54 Tilt device 54a Actuator 54b Detection device 57 Swivel part 60 Outboard motor main body 61 Control part 61a Control part case 61b Control circuit 61d Control part connector 62 Motor 62a Motor case 62b Motor connector 62c Stator 62d Rotor 66 Propeller 67 Housing 68 Cover 68a Swelling part 69 Heat exchanger 70 Electric outboard motor 100 Ship S1 First space S2 2nd space S3 3rd space Ws Water surface Z Upper end of the rear surface of the part of the hull where the attachment part is attached

Claims (15)

  1. 　プロペラと、前記プロペラを駆動する電動のモータと、前記モータを制御する制御部と、を備える船外機本体と、
    　前記船外機本体を船体の後部に対して取り付ける取付け部と、
    　を備え、前記船体における前記取付け部が取り付けられる部分の後面の上端よりも下方に、前記モータの上端および前記制御部の上端が位置する、電動船外機。     an outboard motor body including a propeller, an electric motor that drives the propeller, and a control section that controls the motor;
    a mounting portion for mounting the outboard motor main body to the rear of the hull;
    An electric outboard motor, wherein an upper end of the motor and an upper end of the control unit are located below an upper end of a rear surface of a portion of the hull to which the attachment portion is attached.
  2. 　前記制御部は、上面視において前記モータと重ならない、請求項１に記載の電動船外機。 The electric outboard motor according to claim 1, wherein the control section does not overlap the motor when viewed from above.
  3. 　前記制御部は、前記モータの後方に配置される、請求項２に記載の電動船外機。 The electric outboard motor according to claim 2, wherein the control section is located behind the motor.
  4. 　前記船外機本体は、前記モータおよび前記制御部を格納するカバーを備え、
    　前記制御部は、前記モータよりも後方にあり、
    　前記カバーの天井面と前記モータの上面との間にはスペースがあり、
    　前記船体にバッテリが搭載されており、
    　前記バッテリから前記スペースを通過して前記制御部にまで延在するＤＣケーブルが設置されている、
    　請求項１～３のいずれか１つに記載の電動船外機。     The outboard motor main body includes a cover that houses the motor and the control section,
    The control unit is located behind the motor,
    There is a space between the ceiling surface of the cover and the top surface of the motor,
    A battery is mounted on the hull,
    A DC cable is installed that extends from the battery through the space to the control unit.
    The electric outboard motor according to any one of claims 1 to 3.
  5. 　前記モータの上端面は、前記制御部の上端面よりも低い位置にある、請求項４に記載の電動船外機。 The electric outboard motor according to claim 4, wherein the upper end surface of the motor is located at a lower position than the upper end surface of the control section.
  6. 　前記船外機本体は、前記モータおよび前記制御部を格納するカバーを備え、
    　前記制御部は、前記モータよりも後方にあり、
    　前記カバーの内側面と前記モータの側面との間にはスペースがあり、
    　前記船体にバッテリが搭載されており、
    　前記バッテリから、前記スペースを通過して前記制御部にまで延在するＤＣケーブルが設置されている、
    　請求項１～３のいずれか１つに記載の電動船外機。     The outboard motor main body includes a cover that houses the motor and the control section,
    The control unit is located behind the motor,
    There is a space between the inner surface of the cover and the side surface of the motor,
    A battery is mounted on the hull,
    A DC cable is installed extending from the battery to the control unit through the space.
    The electric outboard motor according to any one of claims 1 to 3.
  7. 　前記船外機本体は、前記モータおよび前記制御部を格納するカバーを備え、
    　前記カバーの上部に、上方に突出する膨出部があり、
    　前記膨出部の内側にスペースがあり、
    　前記船体にバッテリが搭載されており、
    　前記バッテリから前記スペースを通過して前記制御部にまで延在するＤＣケーブルが設置されている、
    　請求項１～６のいずれか１つに記載の電動船外機。     The outboard motor main body includes a cover that houses the motor and the control section,
    The top of the cover has a bulge that projects upward;
    There is a space inside the bulge,
    A battery is mounted on the hull,
    A DC cable is installed that extends from the battery through the space to the control unit.
    The electric outboard motor according to any one of claims 1 to 6.
  8. 　前記取付け部は、前記船外機本体における前記モータの重心よりも上側部分と、前記船外機本体における前記モータの重心よりも下側部分と、を支持している、請求項１～７のいずれか１つに記載の電動船外機。 The attachment portion supports a portion of the outboard motor body above the center of gravity of the motor and a portion of the outboard motor body below the center of gravity of the motor. The electric outboard motor described in any one of the above.
  9. 　前記取付け部は、上下方向に延在する鉛直部と、前記鉛直部の下端から後方に延在する水平部とを有する側面視でＬ字状のブラケットを備え、前記ブラケットによって、前記船外機本体を支持している、請求項１～７のいずれか１つに記載の電動船外機。 The mounting portion includes a bracket that is L-shaped in side view and has a vertical portion extending in the vertical direction and a horizontal portion extending rearward from the lower end of the vertical portion, and the bracket allows the outboard motor to be mounted on the outboard motor. The electric outboard motor according to any one of claims 1 to 7, wherein the electric outboard motor supports a main body.
  10. 　前記船外機本体は、前記モータおよび前記制御部を格納するカバーを備え、
    　前記カバーの上端は、前記船体における前記取付け部が取り付けられる部分の後面の上端よりも上方に位置している、請求項１～９のいずれか１つに記載の電動船外機。     The outboard motor main body includes a cover that houses the motor and the control section,
    The electric outboard motor according to any one of claims 1 to 9, wherein an upper end of the cover is located above an upper end of a rear surface of a portion of the hull to which the attachment portion is attached.
  11. 　前記モータおよび前記制御部のうちの少なくとも一方は、上端面が水平になるように設置される、請求項１～１０のいずれか１つに記載の電動船外機。 The electric outboard motor according to any one of claims 1 to 10, wherein at least one of the motor and the control section is installed so that an upper end surface thereof is horizontal.
  12. 　前記制御部は、前記モータを制御する制御回路と、前記制御回路を格納する制御部ケースと、前記制御部ケースに設けられた制御部コネクタと、を備え、
    　前記モータは、ロータと、前記ロータを回転させるステータと、前記ロータおよび前記ステータを格納するモータケースと、前記モータケースに設けられたモータコネクタと、を備え、
    　前記制御部コネクタと前記モータコネクタとが係合し合うことによって、前記制御部と前記モータとが互いに電気的に接続されている、
    　請求項１～１１のいずれか１つに記載の電動船外機。     The control unit includes a control circuit that controls the motor, a control case that stores the control circuit, and a control connector provided in the control case,
    The motor includes a rotor, a stator that rotates the rotor, a motor case that stores the rotor and the stator, and a motor connector provided in the motor case,
    The control unit and the motor are electrically connected to each other by engagement of the control unit connector and the motor connector;
    The electric outboard motor according to any one of claims 1 to 11.
  13. 　前記船体が浮かぶ水面よりも下方にまで延在する熱交換器を備え、
    　前記熱交換器は、前記モータおよび前記制御部のうちの少なくとも一方を含む冷却対象で発生した熱を前記水面よりも下方の水に排熱することによって、前記冷却対象を冷却する、
    　請求項１～１２のいずれか１つに記載の電動船外機。     comprising a heat exchanger extending below the water surface on which the hull floats,
    The heat exchanger cools the object to be cooled by discharging heat generated in the object to be cooled, including at least one of the motor and the control unit, to water below the water surface.
    The electric outboard motor according to any one of claims 1 to 12.
  14. 　前記モータの動力を前記プロペラに伝えるためのドライブシャフトを有し、
    　前記船外機本体は、前記制御部と前記モータとを有する本体上側ユニットと、前記プロペラを有する本体下側ユニットと、を有し、
    　前記船体の進行方向を変える旋回時には、前記本体上側ユニットに対して前記本体下側ユニットが、前記ドライブシャフトの軸線回りに回転する、
    　請求項１～１３のいずれか１つに記載の電動船外機。     a drive shaft for transmitting power of the motor to the propeller;
    The outboard motor main body includes an upper main body unit having the control section and the motor, and a lower main body unit having the propeller,
    When turning to change the traveling direction of the hull, the lower main body unit rotates around the axis of the drive shaft with respect to the upper main unit.
    The electric outboard motor according to any one of claims 1 to 13.
  15. 　請求項１～１４のいずれか１つに記載の電動船外機と、
    　前記船体と、
    　上面視において前記船体の後部の少なくとも一部と重なる船体デッキと、
    　前記船外機本体の上方に設けられており、上面視において前記船外機本体の少なくとも一部と重なる船外機デッキと、
    　を備える船舶。     The electric outboard motor according to any one of claims 1 to 14,
    The hull;
    a hull deck that overlaps at least a portion of the rear part of the hull when viewed from above;
    an outboard motor deck provided above the outboard motor main body and overlapping at least a portion of the outboard motor main body when viewed from above;
    A ship equipped with
PCT/JP2022/014958 2022-03-28 2022-03-28 Electric outboard motor and vessel WO2023187887A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6802749B1 (en) * 2003-07-28 2004-10-12 Ty E. Justus Marine vessel trolling and battery recharging system
JP2005162055A (en) * 2003-12-03 2005-06-23 Suzuki Motor Corp Electric outboard motor
JP2006056458A (en) * 2004-08-23 2006-03-02 Yamaha Marine Co Ltd Electric propeller
JP2010228530A (en) * 2009-03-26 2010-10-14 Suzuki Motor Corp Hybrid type outboard motor
JP2016037256A (en) * 2014-08-11 2016-03-22 スズキ株式会社 Electric outboard machine
WO2017082248A1 (en) * 2015-11-11 2017-05-18 ヤマハ発動機株式会社 Ship propulsion device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6802749B1 (en) * 2003-07-28 2004-10-12 Ty E. Justus Marine vessel trolling and battery recharging system
JP2005162055A (en) * 2003-12-03 2005-06-23 Suzuki Motor Corp Electric outboard motor
JP2006056458A (en) * 2004-08-23 2006-03-02 Yamaha Marine Co Ltd Electric propeller
JP2010228530A (en) * 2009-03-26 2010-10-14 Suzuki Motor Corp Hybrid type outboard motor
JP2016037256A (en) * 2014-08-11 2016-03-22 スズキ株式会社 Electric outboard machine
WO2017082248A1 (en) * 2015-11-11 2017-05-18 ヤマハ発動機株式会社 Ship propulsion device

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