WO2023187887A1 - Moteur hors-bord électrique et navire - Google Patents

Moteur hors-bord électrique et navire 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
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PCT/JP2022/014958
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English (en)
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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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/fr
Publication of WO2023187887A1 publication Critical patent/WO2023187887A1/fr

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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

La présente invention permet d'augmenter la qualité de conception et un champ de vision arrière d'un navire.　Un moteur hors-bord électrique 70 comprend un corps principal de moteur hors-bord 60 et une partie de montage 50. Le corps principal de moteur hors-bord 60 comprend une hélice 66, un moteur électrique 62 qui entraîne l'hélice 66, et une unité de commande 61 qui commande le moteur 62. La partie de montage 50 permet un montage du corps principal de moteur hors-bord 60 à l'arrière d'une coque 10. L'extrémité supérieure du moteur 62 et l'extrémité supérieure de l'unité de commande 61 sont positionnées au-dessous de l'extrémité supérieure Z de la surface arrière d'une partie de la coque 10 sur laquelle est montée la partie de montage 50.
PCT/JP2022/014958 2022-03-28 2022-03-28 Moteur hors-bord électrique et navire WO2023187887A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/JP2022/014958 WO2023187887A1 (fr) 2022-03-28 2022-03-28 Moteur hors-bord électrique et navire

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Application Number Priority Date Filing Date Title
PCT/JP2022/014958 WO2023187887A1 (fr) 2022-03-28 2022-03-28 Moteur hors-bord électrique et navire

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WO2023187887A1 true WO2023187887A1 (fr) 2023-10-05

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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 (ja) * 2003-12-03 2005-06-23 Suzuki Motor Corp 電動式船外機
JP2006056458A (ja) * 2004-08-23 2006-03-02 Yamaha Marine Co Ltd 電動推進機
JP2010228530A (ja) * 2009-03-26 2010-10-14 Suzuki Motor Corp ハイブリッド式船外機
JP2016037256A (ja) * 2014-08-11 2016-03-22 スズキ株式会社 電動船外機
WO2017082248A1 (fr) * 2015-11-11 2017-05-18 ヤマハ発動機株式会社 Dispositif de propulsion de navire

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 (ja) * 2003-12-03 2005-06-23 Suzuki Motor Corp 電動式船外機
JP2006056458A (ja) * 2004-08-23 2006-03-02 Yamaha Marine Co Ltd 電動推進機
JP2010228530A (ja) * 2009-03-26 2010-10-14 Suzuki Motor Corp ハイブリッド式船外機
JP2016037256A (ja) * 2014-08-11 2016-03-22 スズキ株式会社 電動船外機
WO2017082248A1 (fr) * 2015-11-11 2017-05-18 ヤマハ発動機株式会社 Dispositif de propulsion de navire

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