JP2014172481A - Electric outboard motor - Google Patents

Abstract

[PROBLEMS] To easily and reliably fix a battery regardless of the size, shape, structure, etc. of the battery installation location, to prevent damage and damage to the battery and cable, and to improve the durability and reliability of the product. Plan.
The present invention relates to an electric outboard motor 1 that propels a hull 2 by driving an electric motor 15, and includes the electric motor 15 and a hull 2 via a mounting bracket device 5 fixed to the stern 4. The outboard motor main body 3 provided outside the vehicle and the outboard motor main body 3 are provided separately from the outboard motor main body 3 and provided in the hull 2. And the mounting bracket device 5 and the power supply device 6 are connected by a bracket member 60.
[Selection] Figure 1

Description

  The present invention relates to an electric outboard motor that propels a hull by driving an electric motor.

  Conventionally, a gasoline engine is generally used as a power source for an outboard motor. However, the gasoline engine has a complicated structure such as a fuel system and a lubrication system, and gasoline, lubricating oil and exhaust gas are underwater. It has many problems, such as pollution of the environment by being discharged. Therefore, in recent years, an electric outboard motor equipped with an electric motor as a power source has attracted attention in order to solve these problems.

  As this type of conventional electric outboard motor, for example, an electric motor and a battery for supplying electric power to the electric motor are arranged at the upper part of the outboard motor main body attached to the stern, and the battery is configured to be detachable. A thing (for example, refer patent document 1 or patent document 2) is well-known.

  However, in the case of an electric outboard motor equipped with a heavy battery in the outboard motor body, when charging, it is necessary for the operator to overhang the upper body from the stern at the rear of the hull and to attach and detach the battery. Therefore, there is a problem that a physical burden is placed on the operator's waist and the workability is poor. In particular, in small vessels, when the battery is attached / detached at the rear of the hull far from the buoyancy, the rear of the hull sinks and the operator's scaffold becomes unstable. There is a risk that the water will fall out of the ship.

  Furthermore, since it is necessary to increase the strength of the structure at the location where the outboard motor main body is attached, the weight of the clamp bracket, swivel bracket, etc. increases. Therefore, in particular, when the ship sails in a state with waves and undulations, there is a problem that a very large load is applied to the ship when landing after jumping and the stability of the sailing is lowered.

  In addition, when storing a small outboard motor on the water, it is common to manually pull up the outboard motor centering on the rotating shaft to prevent corrosion, etc. A large pulling force is required to bring it up.

  Furthermore, since the outboard motor main body can be mounted with only a small capacity battery, there is a problem that the cruising distance is reduced.

  On the other hand, recently, in order to solve the problem of the electric outboard motor with the battery mounted on the outboard motor main body, a battery is installed in the hull body separately from the outboard motor main body. An electric outboard motor configured to connect an electric motor in the machine main body with a cable has also been proposed (for example, see Patent Document 3).

JP 2005-162054 A JP 2005-162055 A JP 2011-213239 A

  However, in the conventional electric outboard motor in which the battery is installed in the hull as disclosed in Patent Document 3, since the battery is not sufficiently fixed, acceleration / deceleration (rapid acceleration / deceleration during traveling) ) If a large acceleration or deceleration is applied to the battery by turning (slalom), jumping, etc., the battery may move in the hull and the battery or high voltage cable may be damaged or damaged. There is a problem that durability and reliability deteriorate.

  On the other hand, in order to fully fix the battery, it is necessary to provide a dedicated fixing facility on the hull side corresponding to the size, shape, structure, etc. of the hull that is the installation location of the battery, the facility becomes complicated, As the number of parts increases, there is a problem that it takes time to install the battery.

  Also, when steering, the outboard motor main body is rotated left and right, the outboard motor main body is tilted up, or the underwater portion of the outboard motor main body collides with an obstacle such as driftwood, If the high voltage cable is repeatedly twisted or bent according to the movement of the outboard motor main body when it is bounced up, the high voltage cable may be damaged, disconnected or deteriorated.

  The present invention has been made to solve the above-described problems, and can easily and reliably fix the battery regardless of the size, shape, structure, etc. of the battery installation place, and can damage or damage the battery or cable. An object of the present invention is to provide an electric outboard motor that can prevent and improve the durability and reliability of the product.

  In order to achieve the above-described object, the present invention provides an electric outboard motor that propels a hull by driving an electric motor, the electric motor having the electric motor, and the hull being mounted via a mounting bracket device fixed to the stern. An outboard motor main body provided outside and the outboard motor main body is provided separately from the outboard motor main body, and is supplied to the electric motor via a cable provided between the electric motor and the electric motor. A power supply device, wherein the mounting bracket device and the power supply device are connected by a bracket member.

  According to this feature, since the power supply device can be fixed by the bracket member, the power supply device can be prevented from moving even if the hull sways during traveling. Moreover, it is possible to prevent the power supply device, the cable, and the like from being broken or damaged due to the movement of the power supply device in the hull, and the durability and reliability of the electric outboard motor can be improved. Furthermore, since an existing mounting bracket device can be used as a fixing facility for the power supply device, it is not necessary to newly provide a dedicated fixing facility on the hull side in accordance with the dimensions, shape, structure, etc. of the hull. It is possible to simplify the equipment and reduce the number of parts, and to save labor in installing the power supply device.

  Further, in the electric outboard motor according to the present invention, the bracket member has an upper end attached to the mounting bracket device and a lower end attached to the power supply device, and has a posture inclined forward. May be a feature.

  According to this feature, when the power supply device tries to move rearward due to a hull shaking or the like, the bracket member generates a component force in a direction in which the power supply device is pressed against the installation surface (floor surface) of the hull. It can prevent more reliably that a power supply device moves.

  In the electric outboard motor according to the present invention, the mounting bracket device may be provided with a plurality of mounting portions to which the bracket member can be connected at positions having different heights.

  According to this feature, according to the difference in height from the installation surface of the stern, the connection partner of the bracket member is selected from a plurality of attachment portions having different heights, and the bracket member is connected to the optimum attachment portion. Therefore, the installation work of the power supply device can be performed easily and reliably.

  Further, in the electric outboard motor according to the present invention, the bracket member and the mounting bracket device include a shaft through which the members are inserted in a horizontal posture, and a lock that is detachable and lockable / unlockable with respect to the shaft. It is good also as a feature to be connected with a key.

  According to this feature, the power supply apparatus can be easily attached and detached, and the power supply apparatus can be prevented from being stolen by locking with the lock key.

  Further, in the electric outboard motor according to the present invention, the mounting bracket device includes a swivel bracket that supports the outboard motor main body so as to be steerable left and right around a steering shaft, and the swivel bracket up and down around a tilt axis. A pair of left and right clamp brackets that are swingably supported and detachably attached to the stern may be provided, and the bracket member may be attached to the clamp bracket.

  According to this feature, since an existing clamp bracket can be used as a fixing facility for the power supply device, it is not necessary to newly provide a dedicated fixing facility on the hull side, simplifying the facility and reducing the number of parts. Can be achieved.

  Further, in the electric outboard motor according to the present invention, the cable passes from above the outboard motor main body to above the steering shaft and is wired to the power supply device through a wiring space between the left and right clamp brackets. It is good also as being characterized.

  According to this feature, the cable can be prevented from being twisted or bent in response to the movement of the outboard motor main body, so that the cable can be prevented from being broken, disconnected, deteriorated, etc. The durability and reliability of the outboard motor can be improved.

  In the electric outboard motor according to the present invention, a guide portion for guiding the cable from above the steering shaft to a wiring space between the left and right clamp brackets is provided in the vicinity of the steering shaft and the tilt shaft. It may be characterized by being.

  According to this feature, the cable can be easily and reliably routed to a predetermined position by the guide portion, so that the wiring work of the cable can be simplified.

  According to the present invention, the battery can be easily and surely fixed regardless of the size, shape, structure, etc. of the battery installation place, the battery and cable can be prevented from being damaged or damaged, and the durability and reliability of the product can be prevented. It is possible to obtain various excellent effects such as improvement of the above.

1 is a side view showing an electric outboard motor according to an embodiment of the present invention. 1 is a front view showing an electric outboard motor according to an embodiment of the present invention. It is a top view which shows the electric outboard motor which concerns on embodiment of this invention. It is a top view which abbreviate | omits a cover member and shows an outboard motor main body in the electric outboard motor which concerns on embodiment of this invention. It is a front view which shows the attachment member of the electric outboard motor which concerns on embodiment of this invention. It is a side view which shows another example of installation of a power supply device in the electric outboard motor which concerns on embodiment of this invention. It is a side view which shows another example of installation of a power supply device in the electric outboard motor which concerns on embodiment of this invention. It is a side view which shows another example of installation of a power supply device in the electric outboard motor which concerns on embodiment of this invention. It is a top view which shows the state which steered the outboard motor main body in the electric outboard motor which concerns on embodiment of this invention. FIG. 3 is a side view showing a state where the outboard motor main body is tilted up in the electric outboard motor according to the embodiment of the present invention.

  Hereinafter, an electric outboard motor according to an embodiment of the present invention will be described with reference to the drawings.

  First, the configuration of the electric outboard motor 1 according to the present embodiment will be described with reference to FIGS. Here, FIG. 1 is a side view showing an electric outboard motor according to an embodiment of the present invention, FIG. 2 is a front view showing the electric outboard motor according to the embodiment of the present invention, and FIG. 3 is an embodiment of the present invention. FIG. 4 is a plan view showing the outboard motor main body with the lid member omitted in the electric outboard motor according to the embodiment of the present invention, and FIG. 5 is related to the embodiment of the present invention. It is a front view which shows the attachment member of an electric outboard motor. In the following description, the front-rear and left-right directions are based on the forward direction of the hull for convenience.

  The electric outboard motor 1 according to this embodiment includes an outboard motor main body 3 provided outside the hull 2, a mounting bracket device 5 that fixes the outboard motor main body 3 to the stern 4, and the outboard motor main body 3. A power supply device 6 provided inside the hull 2 as a separate body, and the outboard motor main body 3 and the power supply device 6 are electrically connected by a cable 7.

  As shown in FIG. 1, the outboard motor main body 3 is divided into three main parts in order from the top: an upper unit 10 constituting the upper part, a middle unit 11 constituting the intermediate part, and a lower unit 12 constituting the lower part. Has been configured.

  The upper unit 10 includes an upper case 13 that covers the outer periphery of the upper unit 13 and is open at the top, and a lid member 14 that closes the opening of the upper case 13. The lid member 14 is disposed at the rear edge of the opening of the upper case 13. It is attached via a hinge 15 so that it can be opened and closed. An upper mount 16 is provided in the vicinity of the boundary between the upper unit 10 and the middle unit 11, and a control unit 74 that controls the number of revolutions of the electric motor 15 is fixed in the upper case 13 on the upper mount 14.

  The middle unit 11 includes a middle case 17 that covers the outer periphery thereof, and a lower mount 18 is attached to the lower portion of the middle case 17. A partition wall 19 is provided above the lower mount 18 to divide the inside of the middle case 17 in the vertical direction. A motor room 20 is formed in the middle case 17 above the partition wall 19. A carrying handle 75 for carrying the outboard motor main body 3 is provided behind the motor room 20.

  The motor room 20 houses an electric motor 15 as a power source of the electric outboard motor 1, and the electric motor 15 is fixed on a partition wall 19. The electric motor 15 is provided with an output shaft 21 projecting downward, and a drive shaft 23 is coupled to the output shaft 21 via a gear 22. The drive shaft 23 extends downward through the middle case 17.

  The lower unit 9 includes a lower case 24 that covers the outer periphery thereof, and the drive shaft 23 extends downward in the lower case 24. The lower end of the drive shaft 23 is connected to a propeller shaft 26 via a bevel gear 25, and a propeller 27 is provided at the rear end of the propeller shaft 26. Thereby, the rotation of the output shaft 21 of the electric motor 15 is transmitted to the propeller shaft 26 through the gear 22, the drive shaft 23, and the bevel gear 25, and the propeller 27 is rotated.

  The mounting bracket device 5 includes a steering shaft 30 that extends in the vertical direction and is rotatably provided, a swivel bracket 31 that supports the outboard motor body 3 so as to be steerable left and right around the steering shaft 30, and the left-right direction And a pair of left and right clamp brackets 32 that support the swivel bracket 31 so as to be able to swing up and down.

  An upper mount 16 and a lower mount 18 are attached to the upper and lower ends of the steering shaft 30. A steering bracket 33 is formed on the steering shaft 30 above the upper mount 16. A notch 28 for passing a cable is formed at the rear part of the steering bracket 33, and a steering handle 35 is attached to a side part of the steering bracket 33 via a handle bracket 34. The steering handle 35 extends forward and is foldable by rotating upward with respect to the handle bracket 34, and a throttle for adjusting the output of the electric motor 15 is provided at the tip of the steering handle 35. A grip 36 is provided.

  The left and right clamp brackets 32 are detachably attached to the stern 4 by clamp screws 37, and a bracket member upper mounting portion 38 and a bracket member lower mounting portion 39 are respectively provided above and below the hull inner portion of each clamp bracket 32. Is formed. A protective cover 29 is provided on the inner side of the hull of the left and right clamp brackets 32 so as to cover the space between the left and right clamp brackets 32 from the front, and a wiring space for the cable 7 is formed behind the protective cover 29. ing.

  A display device 56 such as a liquid crystal panel for displaying operation information of the electric outboard motor 1 is provided on the front upper surface of the outboard motor body 3, and a system main key 57 is provided in front of the display device 56. When the throttle grip 36 is rotated with the main key 57 powered on, the rotation of the electric motor 15 is controlled by detecting the rotation.

  The power supply device 6 is configured by storing a battery (battery pack) 41 in a battery storage case 40. The battery storage case 40 has a rectangular parallelepiped outer shape, and includes a case main body 42 that is open at the top and a lid member 43 that closes the opening of the case main body 42.

  On the bottom surface 42 a of the case main body 42, a pair of left and right rollers 44 are provided so as to be able to roll at the rear end portion on the stern 4 side, and leg portions 45 are provided at four positions in front of the rollers 44. Each leg portion 45 is disposed so that the power supply device 6 can be stably supported on the installation surface 2 a of the hull 2, and a cushioning material 46 such as rubber is attached to the lower end of each leg portion 45.

  A carrying handle 47 for carrying the power supply device 6 is provided on the front side surface 42 b of the case body 42. The carrying handle 47 includes a horizontal grip portion 48 and arm portions 49 that extend vertically from the left and right ends of the grip portion 48. Each end portion 49a of the left and right arm portions 49 is pivotally supported on the upper portion of the front side surface 42b of the case main body 42, and the carrying handle 47 is rotatable in the vertical direction. Then, when the gripping portion 48 is rotated upward with the end portion 49a of the arm portion 49 as a fulcrum and pulled upward, each leg portion 45 is separated from the installation surface 2a, and the roller 44 is allowed to roll. The device 6 can be easily transported. Further, on the rear side surface 42c of the case main body 42, a cable connecting portion 50 is provided in the center of the lower portion, and bracket member attaching portions 51 are provided on the upper left and right, respectively.

  A battery mounting portion is formed inside the case main body 42 so as to accommodate a plurality of batteries 41 according to the required operation time of the electric motor 15. The case main body 42 has a structure in which when a plurality of batteries 41 are accommodated therein, the batteries 41 are connected in parallel in the front-rear direction. Even when only one battery 41 is accommodated, the electric motor 15 is provided. Can be operated. An elastic member 52 is attached on the bottom surface in the case main body 42.

  The battery mounting portion in the case body 42 has a structure in which each battery 41 can be attached and detached in the vertical direction. It is easy to insert and the battery 41 can be removed and attached very easily. The case body 42 is not limited to the shape and structure described above, and can be variously modified in accordance with the shape, dimensions, etc. of the hull 2. For example, a plurality of batteries 41 are accommodated in parallel in the left-right direction. In this case, the length of the power supply device 6 in the front-rear direction can be shortened.

  The battery 41 is configured such that an assembly of lithium ion battery cells is housed in a case. The battery 41 can be removed from the battery mounting portion of the case body 42 and carried, and can be repeatedly used by being charged by a charger.

  The lid member 43 is formed to be detachable from the case body 42 and has a watertight seal structure. An elastic member 53 is attached to the inner surface of the lid member 43, and when the battery 41 is accommodated in the case body 42 and the lid member 43 is closed, the elastic member 53 of the lid member 43 and the elastic member 52 of the case body 42. Thus, the battery 41 is pressed from above and below to be elastically held to absorb shocks and vibrations.

  A display panel 54 is installed on the upper surface of the lid member 43, and a remaining amount indicator lamp for the battery 41 and a temperature warning lamp for the electric motor 15 are provided on the display panel 54. A key-type main switch 55 is provided on the upper surface of the lid member 43 behind the display panel 54. The key of the main switch 55 also serves as a lock opening / closing operation key of the lid member 43, and the battery 41 cannot be attached / detached (exchanged) unless the main switch 55 is in the off position. Thus, the battery member 41 can be prevented from being stolen by providing the lid member 43 with the lock mechanism.

  The power supply device 6 and the clamp bracket 32 are connected by a bracket member 60. The bracket member 60 has a width in the left-right direction that can be fitted between the left and right clamp brackets 32, and has a downwardly inclined posture. The bracket member 60 has a pair of left and right arm pieces 61 arranged to face each other, and has a shape bent in a dogleg shape when viewed from the left side, and covers the space between the arm pieces 61 from the front. And a front plate 62 formed between the arm pieces 61.

  The upper end portion of each arm piece 61 is rotatably connected to either one of the bracket member upper mounting portion 38 or the bracket member lower mounting portion 39 of each clamp bracket 32 via the mounting member 63, The lower end portion of 61 is rotatably connected to the left and right bracket member mounting portions 51 of the power supply device 6. In the present embodiment, as shown in FIG. 1, an example is shown in which the upper end portion of the arm piece 61 is connected to the bracket member lower mounting portion 39.

  As shown well in FIG. 5, the mounting member 63 is configured so that the upper end portion of each arm piece 61 and the bracket member upper mounting portion 38 or the bracket member lower mounting portion 39 of each clamp bracket 32 are horizontally oriented in the left-right direction. A shaft 64 to be inserted is provided. A grip 65 is provided at one end of the shaft 64, and a locking recess 66 is formed at the other end of the shaft 64.

  Further, the attachment member 63 includes a lock key 67 provided to be disengageable and lockable with respect to the shaft 64. A locking projection 68 that can be locked to the locking recess 66 is formed at one end of the lock key 67, and a gripping portion 69 is formed at the other end of the lock key 67. Thus, when the power supply device 6 and the clamp bracket 32 are connected by the bracket member 60, the power supply device 6 can be prevented from being stolen by locking with the lock key 67.

  The cable 7 is configured by covering the high voltage wiring and the control system wiring with a protective member 70 made of a material having excellent flexibility such as an elastic member having a tube structure. Connection couplers 71 and 72 are attached to both ends of the cable 7, respectively. In the cable 7, one connection coupler 71 is detachably connected to the front portion of the control unit 74 of the outboard motor main body 3 and is connected in a watertight manner, and the other connection coupler 71 is attached to and detached from the power supply device 6 via the cable connection portion 50. Possible and watertight connection.

  Thus, since the cable 7 is connected to the outboard motor main body 3 and the power supply device 6 via the connection couplers 71 and 72, the outboard motor main body 3 and the power supply device 6 are not easily wetted in the hull 2. It can be easily separated. Therefore, the waterproof property of the electric outboard motor 1 can be enhanced, and the attachment / detachment work of the outboard motor main body 3 and the power supply device 6 can be simplified. Moreover, the portability at the time of carrying the outboard motor main body 3 and the power supply device 6 to a storage place etc. can also be improved.

  The cable 7 passes above the steering shaft 30, passes through the notch 28 of the steering bracket 33, and is formed between the left and right clamp brackets 32 behind the protective cover 29 from the gap below the tilt shaft 73. The wiring space and the space behind the front plate 62 of the bracket member 60 are disposed so as to pass through. At this time, the notch 28 of the steering bracket and the gap below the tilt shaft 73 formed in the vicinity of the steering shaft 30 and the tilt shaft 73 allow the cable 7 to be routed between the steering shaft 33 and the left and right clamp brackets 32. It functions as a guide part that leads to

  In the above-described embodiment of the present invention, as illustrated in FIG. 1, the case where the upper end portion of the arm piece 61 is connected to the bracket member lower mounting portion 39 is described as an example. Depending on the height of the installation surface 2a of the power supply device 6 in the hull 2, that is, the height of the stern 4 from the installation surface 2a, either the bracket member upper mounting portion 38 or the bracket member lower mounting portion 39 is connected. Either one can be selected.

  For example, FIG. 6 shows an installation example when the height of the installation surface 2b of the power supply device 6 is slightly higher than the installation surface 2a of FIG. In this installation example, the upper end portion of the arm piece 61 is connected to the bracket member lower mounting portion 39 as in the case of the above-described embodiment, but the downward inclined posture of the bracket member 60 toward the front is almost horizontal, The power supply device 6 is arranged in front of the case of FIG.

  FIG. 7 shows an installation example when the height of the installation surface 2c of the power supply device 6 is higher than the installation surface 2b of FIG. In this installation example, unlike the case of FIG. 1 and FIG. 6, the upper end portion of the arm piece 61 is connected to the bracket member upper mounting portion 38, and the downward tilting posture toward the front of the bracket member 60 is close to the vertical. The device 6 is arranged behind the case of FIG.

  Further, FIG. 8 shows an installation example when the height of the installation surface 2d of the power supply device 6 is higher than the installation surface 2c of FIG. In this installation example, as in the case of FIG. 7, the upper end portion of the arm piece 61 is connected to the bracket member upper mounting portion 38, but the downward tilting posture of the bracket member 60 toward the front is almost horizontal, and the power supply device 6 is arranged in front of the case of FIG.

  In each installation example of the power supply device 6 as described above, it is possible to select a cable 7 having a different length according to the height of the installation surfaces 2a, 2b, 2c, and 2d of the power supply device 6. It is.

  Thus, according to the electric outboard motor 1 according to the embodiment of the present invention, the connection partner of the upper end portion of the arm piece 61 according to the difference in height from the installation surfaces 2a, 2b, 2c, 2d of the stern 4. As described above, either one of the bracket member upper mounting portion 38 and the bracket member lower mounting portion 39 can be selected, and the upper end portion of the arm piece 61 can be easily and reliably connected by the mounting member 63. In addition, in order to fix the power supply device 6, it is not necessary to provide a dedicated fixing facility on the hull 2 side corresponding to the size, shape, structure, etc. of the hull 2, so the facility is simplified and the number of parts is reduced. In addition, it is possible to save labor in installing the power supply device 6.

  In addition, by fixing the power supply device 6 with the bracket member 60 in this way, acceleration / deceleration (rapid acceleration / deceleration), steering (slalom), jumping, etc. are performed during cruising. Even if acceleration or deceleration acts, it is possible to prevent the power supply device 6 from moving due to the shaking of the hull 2. Further, the movement of the power supply device 6 in the hull 2 can reliably prevent the power supply device 6 and the cable 7 from being damaged or damaged, and the durability and reliability of the electric outboard motor 1 can be improved. Can be planned.

  Further, as shown in FIG. 9, by rotating the steering handle 35 in the horizontal direction during traveling, the outboard motor main body 3 is rotated in the horizontal direction around the steering shaft 30 to steer the traveling direction of the hull. Alternatively, as shown in FIG. 10, the outboard motor body 3 is rotated upward about the tilt shaft 73 to tilt up, or the underwater portion of the outboard motor body 3 collides with an obstacle such as driftwood. Even if the outboard motor main body 3 is flipped up, the cable 7 connecting the outboard motor main body 3 and the power supply device 6 passes above the steering shaft 30 and is notched in the steering bracket 33. The wiring space of the cable 7 formed between the left and right clamp brackets 32 behind the protective cover 29 through the gap below the tilt shaft 73 and the front plate 6 of the bracket member 60. For passing through the rear of the space, it is possible to suppress twisting or bending of the cable 7 corresponding to the movement of the outboard motor body 3 is minimized source.

  Further, in this case, the cable 7 is protected by the protective cover 29 and the front plate 62 of the bracket member 60 and does not protrude outside from the wiring space, so that it does not come into contact with the power supply device 6. Therefore, breakage, disconnection, deterioration, etc. of the cable 7 can be prevented, and the durability and reliability of the electric outboard motor 1 can be improved. Moreover, since the exposed part of the cable 7 can be suppressed to the minimum source, the environment in which the cable 7 is exposed to sunlight can be prevented, the durability and reliability of the cable 7 can be further improved, and the appearance can be improved. Can keep.

  In addition, as described above, by configuring the outboard motor main body 3 and the power supply device 6 separately, the power supply device 6 can be arranged in the hull 2 so that the balance of the center of gravity of the hull 2 is stabilized. The maneuverability of the electric outboard motor 1 can be improved.

  In the above-described embodiment of the present invention, the bracket member upper mounting portion 38 and the bracket member lower mounting portion 39 are provided only on the upper and lower sides of the left and right clamp brackets 32. You may provide three or more attachment parts of the bracket member 60 in the position where the height of the bracket 32 differs.

  Further, instead of or in addition to providing a plurality of attachment portions for the bracket member 60 on the left and right clamp brackets 32, a plurality of attachment portions for the bracket member 60 may be provided at different heights of the power supply device 6, or a height dimension may be provided. A plurality of different bracket members 60 may be prepared in advance.

  Furthermore, the battery storage case 40 can incorporate a charging device for charging the battery 41, or can incorporate a control device for the electric motor 15 and an inverter.

  Furthermore, since the above description of the embodiment of the present invention describes a preferred embodiment of the electric outboard motor according to the present invention, there may be various technically preferable limitations. However, the technical scope of the present invention is not limited to these embodiments unless specifically described to limit the present invention. That is, the above-described components in the embodiment of the present invention can be appropriately replaced with existing components and the like, and various variations including combinations with other existing components are possible. The description of the embodiment of the present invention described above does not limit the contents of the invention described in the claims.

DESCRIPTION OF SYMBOLS 1 Electric outboard motor 2 Hull 3 Outboard motor main body 4 Stern 5 Mounting bracket apparatus 6 Power supply device 7 Cable 15 Electric motor 28 Notch part (guide part)
30 Steering shaft 31 Swivel bracket 32 Clamp bracket 38 Bracket member upper mounting portion 39 Bracket member lower mounting portion 39
60 Bracket member 64 Shaft 67 Lock key 73 Tilt axis

Claims (7)

An electric outboard motor that propels the hull by driving an electric motor,
An outboard motor main body provided outside the hull via a mounting bracket device having the electric motor and fixed to the stern;
A power supply device that is provided inside the hull separately from the outboard motor main body and that supplies power to the electric motor via a cable connected to the electric motor;
And the mounting bracket device and the power supply device are connected by a bracket member.   2. The electric boat according to claim 1, wherein the bracket member has an upper end portion attached to the mounting bracket device and a lower end portion attached to the power supply device, and has a posture inclined downward to the front. Outside machine.   The electric outboard motor according to claim 1 or 2, wherein the mounting bracket device is provided with a plurality of mounting portions to which the bracket member can be connected at positions having different heights.   The bracket member and the mounting bracket device are connected to each other by a shaft through which the members are inserted in a horizontal posture, and a lock key provided to be disengageable and unlockable with respect to the shaft. The electric outboard motor according to any one of claims 1 to 3.   The mounting bracket device includes a swivel bracket that supports the outboard motor main body so that it can be steered left and right around a steering shaft, and supports the swivel bracket so that it can swing up and down around a tilt shaft, and is detachable from the stern. An electric outboard motor according to any one of claims 1 to 4, further comprising a pair of left and right clamp brackets attached to the bracket, wherein the bracket member is attached to the clamp bracket.   6. The cable according to claim 5, wherein the cable passes from above the outboard motor main body over the steering shaft and is wired to the power supply device through a wiring space between the left and right clamp brackets. The electric outboard motor described.   The guide portion for guiding the cable from above the steering shaft to a wiring space between the left and right clamp brackets is provided in the vicinity of the steering shaft and the tilt shaft. Electric outboard motor.

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