JP6107280B2 - Electric outboard motor power structure - Google Patents

Description

  The present invention relates to a power supply structure for an electric outboard motor in which an electric outboard motor including an electric motor and a power supply device that supplies electric power to the electric motor are configured separately.

  Patent Document 1 discloses a structure in which an electric outboard motor including an electric motor and a power supply device (power supply unit) that supplies electric power to the electric motor are configured separately. In the power supply device (power supply unit) in Patent Document 1, a battery pack mounting part having an opening for mounting a battery pack is provided on a side surface of a unit case, and the battery pack and the battery pack mounting part are exposed to the outside of the unit case. Configured.

JP 2011-213239 A

  In general, most outboard motors have a small output, and are often used in small fishing boats. On this small fishing boat, there are few that are equipped with a cabin (room) that can store a power supply device (power supply unit). Therefore, the power supply device is generally installed on a deck of a hull.

  However, when the power supply device is installed on the hull deck in this way, the power supply device is exposed to rainwater and splashes, and therefore, a waterproof measure for preventing leakage or short circuit due to flooding is indispensable.

  In the structure in which the battery pack and the battery pack mounting part are exposed to the outside of the unit case as in Patent Document 1 described above, the battery pack and the battery pack mounting part must be separately waterproofed. It becomes complicated and the cost increases.

  Furthermore, in Patent Document 1, since there is no wheel or the like in the power supply device (power supply unit), it is necessary to lift and carry the power supply device. In particular, when the capacity of the battery pack is large, it becomes difficult to carry the power supply device.

  An object of the present invention has been made in consideration of the above-mentioned circumstances, and a battery that constitutes a power supply apparatus can be safely and easily moved and transported as a power supply apparatus provided separately from an electric outboard motor. It is an object of the present invention to provide a power supply structure for an electric outboard motor that can realize waterproofing of a pack and a battery pack control unit at low cost.

In the present invention, a power supply device that supplies power to an electric motor included in the electric outboard motor is provided separately from the electric outboard motor, and the electric outboard motor and the power supply device are connected via a cable. In the power supply structure of the electric outboard motor, the power supply device includes a packaged battery pack, a battery pack mounting section to which the battery pack is attached and detached, a battery pack control section for managing the state of the battery pack, A battery pack, a box-shaped battery pack case that houses the battery pack mounting portion, and the battery pack control unit, and the battery pack case has an opening through which the battery pack can be inserted and removed, and constructed an opening of the case body and a closable lid member liquid-tightly, in the above battery pack case, and provided to extend in the vertical direction only on one side of the outer wall of the case body carry And Guhandoru, a wheel for assisting movement by the carrying handle is disposed only on the lower corner of the one side surface of the carrying handle is provided, the said outer wall of said case body in which the carrying handle is provided one And an engaging portion that is provided on the other side opposite to the side surface and engages with a latching portion installed on the hull side .

  According to the present invention, since the battery pack, the battery pack mounting unit, and the battery pack control unit are housed in the liquid-tight battery pack case, it is not necessary to individually provide a waterproof mechanism, and the power supply device can be made inexpensive. Can be manufactured. In addition, since the carrying handle and the wheel for assisting the movement and transportation by the carrying handle are provided in the battery pack case, the power supply device including the battery pack can be safely and securely installed even if the battery pack has a large capacity and a large weight. Easy to move and carry.

The perspective view which shows the electric outboard motor and power supply device of 1st Embodiment in the power supply structure of the electric outboard motor which concern on this invention. The electric outboard motor of FIG. 1 and the installation condition to the hull of a power supply device are shown, (A) is a top view, (B) is a perspective view. The rear view which shows the power supply device of FIG. Sectional drawing which follows the IV-IV line of FIG. Sectional drawing which follows the VV line | wire of FIG. The state which extended the carrying handle in the power supply device of FIG. 1 is shown, (A) is a front view, (B) is a top view. The state which extended the carrying handle in the power supply device of FIG. 1 is shown, (A) is a rear view, (B) is a side view. The state which extended the carrying handle in the power supply device of FIG. 1 is shown, (A) is a side view which shows a stop state, (B) is a side view which shows a movement state. The operation | movement figure which shows the procedure which engages the power supply device of FIG. 1 with a hull side latching part. The rear view which shows the power supply device of 2nd Embodiment in the power supply structure of the electric outboard motor which concerns on this invention. Sectional drawing which follows the XI-XI line of FIG. The perspective view which shows the power supply device of FIG. The rear view which shows the power supply device of 3rd Embodiment in the power supply structure of the electric outboard motor which concerns on this invention. Sectional drawing which follows the XIV-XIV line | wire of FIG. The modification of the power supply device of FIG. 13 is shown, (A) is a side view, (B) is the perspective view seen from diagonally downward.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
[A] First embodiment (FIGS. 1 to 9)
FIG. 1 is a perspective view showing an electric outboard motor and a power supply device according to a first embodiment in the power supply structure of the electric outboard motor according to the present invention. 2 shows a state of installation of the electric outboard motor and the power supply device shown in FIG. 1 on the hull. FIG. 2A is a plan view, and FIG. In the following embodiments, “front” of the electric outboard motor coincides with the forward direction of the hull to which the electric outboard motor is attached.

  The electric outboard motor 10 shown in FIG. 1 includes an electric motor 15 as a drive source, and a power supply device 11 that supplies electric power to the electric motor 15 is provided separately from the electric outboard motor 10. The electric outboard motor 10 and the power supply device 11 are connected via an external cable 12 for power supply and signal transmission.

  The electric outboard motor 10 includes an outboard motor main body 13 and a mounting bracket 14. The mounting bracket 14 attaches the outboard motor main body 13 to the transom 16A of the hull 16 (FIG. 2). As shown in FIG. 1, the outboard motor main body 13 rotationally drives the propeller 17 disposed at the lower portion by the driving force of the electric motor 15 disposed at the upper portion.

  That is, the outboard motor main body 13 has a motor cover 18 in the upper portion thereof, and the electric motor 15 is accommodated in the motor cover 18. A steering handle 19 extends forward in the lower front portion of the motor cover 18, and a slot grip 20 for adjusting the output of the electric motor 15 is provided at the tip of the steering handle 19. The steering handle 19 is provided with a shift switch (not shown) that switches between normal rotation and reverse rotation of the electric motor 15.

  A drive shaft housing 21 extends downward at a lower portion of the motor cover 18, and a gear case 22 is provided at the lower portion of the drive shaft housing 21. A drive shaft (not shown) is disposed inside the drive shaft housing 21, and a propeller shaft (not shown) is disposed inside the gear case 22, and a propeller 17 is rotatably integrated with the rear end of the propeller shaft. The driving force of the electric motor 15 is transmitted to the propeller 17 via the drive shaft and the propeller shaft, and the propeller 17 is rotated forward or reverse.

  The mounting bracket 14 is provided so as to be able to grip the transom 16A of the hull 16 and enables the outboard motor main body 13 to turn in the horizontal direction and the vertical direction with respect to the hull 16. Therefore, the electric outboard motor 10 can trim and tilt the outboard motor main body 13 in the vertical direction with respect to the hull 16, and further, the steering handle 19 is operated in the horizontal direction. The horizontal direction of 13 is changed and the hull 16 can be steered.

  The power supply device 11 is installed on the deck 16B of the hull 16 as shown in FIG. 2, and as shown in FIGS. 3 and 4, a battery pack case 25, a battery pack 26, and a battery pack holder as a battery pack mounting portion. 27, a battery pack control unit 28, and a foam 29 as a cushioning material.

  The battery pack 26 is a power source (battery) that supplies electric power to the electric motor 15 of the electric outboard motor 10 and is configured by being packaged. The battery pack holder 27 is formed in a shape substantially similar to the outer shape of the battery pack 26, functions as an inner case, and holds the battery pack 26 in a detachable manner. Further, the battery pack control unit 28 is attached to the battery pack holder 27, manages the state of the battery pack 26, and controls the power supplied from the battery pack 26 to the electric motor 15 of the electric outboard motor 10.

  The battery pack case 25 is formed in a box shape and houses the battery pack 26, the battery pack holder 27, and the battery pack control unit 28, and includes a case main body 30 and a lid member 31. The case main body 30 includes an opening 30 </ b> A through which the battery pack 26 can be put in and out, and the lid member 31 can close the opening 30 </ b> A. A sealing material 32 having a liquid-tight function is interposed between the case main body 30 and the lid member 31.

  The foam 29 is made of an elastic material, for example, an independent foamed molded body in which foamed portions are independent from each other. The foam 29 is filled between the case main body 30 of the battery pack case 25 and the battery pack 26, the battery pack holder 27, and the battery pack control unit 28, so that the battery pack 26, the battery pack holder 27, and the battery pack control are performed. The part 28 is held in a bufferable manner.

  The output terminal 33 of the battery pack 26 is detachably connected to the battery pack connector 34 of the battery pack control unit 28. The battery pack connector 34 is attached to the battery pack holder 27. In addition, the battery pack control unit 28 is connected to the power supply device side connector 36 via an internal cable 35 for power supply and signal transmission. The external cable 12 shown in FIG. 1 is connected to the outboard motor main body 13 of the electric outboard motor 10, extends from the outboard motor main body 13, and is connected to the outboard motor side connector 37 disposed at the tip of the external cable 12. The power supply device side connector 36 is detachably connected. The electric power stored in the battery pack 26 passes through the output terminal 33, the battery pack connector 34, the battery pack control unit 28, the internal cable 35, the power supply side connector 36, the outboard motor side connector 37, and the external cable 12. Power is supplied to the electric motor 15 of the outboard motor main body 13.

  Therefore, the power supply device side connector 36 functions as a power output unit of the power supply device 11 that supplies power from the power supply device 11 to the electric outboard motor 10. 4 and 5, the power supply device side connector 36 is installed on the top of the lid member 31 of the battery pack case 25, and between the power supply device side connector 36 and the cover member 31, A sealing material 38 having a liquid tight function is interposed. By this sealing material 38 and the sealing material 32, the battery pack case 25 is configured in a liquid-tight structure, and waterproofness is ensured.

  Further, the case body 30 of the battery pack case 25 is provided with a carrying handle 40 for moving and transporting the power supply device 11 and a pair of wheels 41, as shown in FIGS. Yes. The carrying handle 40 is provided to extend in a vertical direction on a back surface 42 that is one side surface of the outer wall of the case body 30, and is attached to a pair of shaft portions 43 as an expandable and contractible cylindrical body, and a tip of the shaft portion 43. And a handle portion 44 that is mounted. The shaft portion 43 of the carrying handle 40 is extended when the power supply device 11 is moved and transported, and the shaft portion 43 is contracted when the power supply device 11 is installed.

  The wheels 41 are disposed at the lower corners of the back surface 42 of the case body 30 on which the carrying handle 40 is installed and are provided so as to be able to roll, and assist the movement of the power supply device 11 by the carrying handle 40. Specifically, as shown in FIGS. 3 and 8A, the wheel 41 has an outer diameter that is the dimension T1 of the movement direction A of the power supply device 11 (the back side 42 side) than the back side 42 of the case body 30. ) And is positioned on the case main body 30 so as to be positioned above the power supply device 11 by the dimension T2 from the bottom surface 45 of the case main body 30.

  The outer diameter of the wheel 41 protrudes toward the moving direction A side of the power supply device 11 by the dimension T1 from the back surface 42 of the case body 30, so that the power supply device 11 moves toward the carrying handle 40 as shown in FIG. When tilted, the case body 30 moves away from the installation surface 46, and the wheel 41 contacts the installation surface 46. Thereby, the power supply device 11 is easily moved in the movement direction A using the carrying handle 40 and the wheels 41. Further, since the outer diameter of the wheel 41 is positioned above the power supply device 11 by the dimension T2 from the bottom surface 45 of the case main body 30, the power supply device 11 is brought into an upright state as shown in FIGS. When installing on the installation surface 46, the wheel 41 moves away from the installation surface 46, and the bottom surface 45 of the case body 30 contacts the installation surface 46, and the power supply device 11 is caused by the frictional force between the bottom surface 45 and the installation surface 46. It is stably installed on the installation surface 46.

  As shown in FIG. 9, the battery pack case 25 is further provided with an engaging portion 48 on a front surface 47 which is the other side opposite to the back surface 42 of the case body 30 provided with the carrying handle 40 and the wheels 41. May be. The engaging portion 48 engages with a hooking portion 49 on the hull 16 side so that the power supply device 11 is installed on the hull 16 in a more stable manner. That is, when the lower end 48B of the engaging portion 48 comes into contact with the hull 16 in a state where the power supply device 11 is inclined toward the carrying handle 40, the engaging portion 48A on the upper end side of the engaging portion 48 is moved toward the hull 16 in the arrow P direction. It rotates (FIG. 9 (A)). Next, when the power supply device 11 is rotated in the arrow Q direction to return to the upright state, the engaging portion 48A of the engaging portion 48 engages with the latching portion 49 of the hull 16 (FIGS. 9B and 9C). ).

With the configuration as described above, according to the first embodiment, the following effects (1) to (4) are achieved.
(1) As shown in FIGS. 3 to 5, the battery pack 26, the battery pack holder 27, and the battery pack control unit 28 are housed in a battery pack case 25 that is configured in a liquid-tight manner. It is not necessary to separately provide a waterproof mechanism for the pack holder 27 and the battery pack control unit 28, and the power supply device 11 can be manufactured at low cost.

  (2) As shown in FIG. 1, FIG. 2 and FIG. 8, since the carrying handle 40 and the wheels 41 for assisting the movement and transportation by the carrying handle 40 are provided in the battery pack case 25, the battery pack case 25 has a large capacity and a heavy weight. Even the battery pack 26 can safely and easily move and carry the power supply device 11 including the battery pack 26. Further, when the power supply device 11 is installed on the hull 16 or the like, the wheel 41 does not contact the deck 16B (installation surface 46) of the hull 16, and the bottom surface 45 of the case body 30 is the deck 16B (installation surface 46) of the hull 16. ) Can be stably installed on the hull 16.

  (3) As shown in FIGS. 1, 4 and 5, the power supply device side connector 36 of the power supply device 11 is provided at the tip of the external cable 12 extending from the outboard motor main body 13 of the electric outboard motor 10. Since the external unit side connector 37 is detachably connected, the external cable 12 and the power supply device 11 can be easily separated. For this reason, the external cable 12 does not get in the way when the power supply device 11 is moved and transported.

  (4) As shown in FIG. 9, when the battery pack case 25 of the power supply device 11 is provided with an engaging portion 48 that engages with a hooking portion 49 installed on the hull 16 side, the power supply device 11 In the process of returning the tilted movement posture to the vertical state, the engaging portion 48 can be engaged with the latching portion 49 of the hull 16. As a result, the power supply device 11 can be stably and reliably installed on the hull 16 by a simple operation without requiring a troublesome fixing work.

[B] Second Embodiment (FIGS. 10 to 12)
FIG. 10 is a rear view showing the power supply device of the second embodiment in the power supply structure of the electric outboard motor according to the present invention. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and the description is simplified or omitted.

  The power supply device 60 according to the second embodiment is different from the first embodiment in that the power supply device side connector 36 is provided on the back surface 42 of the battery pack case 25 where the carrying handle 40 is installed. is there.

  That is, as shown in FIGS. 10 to 12, the power supply device side connector 36 is disposed between the pair of shaft portions 43 of the carrying handle 40 on the back surface 42 of the case body 30. These shaft portions 43 are formed with protective protrusions 61 at the same position as the power supply device side connector 36 in the vertical direction of the power supply device 60 to securely protect the power supply device side connector 36 from obstacles. Yes.

  A sealing material 38 is interposed between the back surface 42 of the case main body 30 and the power supply device side connector 36, and the sealing material 38 and the sealing material 32 interposed between the case main body 30 and the lid member 31. Thus, the battery pack case 25 of the power supply device 60 is configured in a liquid-tight structure.

  Therefore, in the second embodiment, the following effects (5) and (6) are obtained in addition to the effects (1) to (4) of the first embodiment.

  (5) The battery pack case 25 constituting the power supply device 11 needs to be fixed to the hull 16 so as not to move due to vibration or the like during the navigation of the hull 16. In this case, the power supply device 11 is installed so that the side surface of the battery pack case 25 is in contact with the anchor 16C (see FIG. 2), the transom 16A, etc. of the hull 16 so as not to disturb the movement and work of the passenger. It is preferable to do.

  Further, in the structure in which the power supply device 11 includes the carrying handle 40 and the wheel 41, the power supply device 11 is inclined and moved to the side where the carrying handle 40 and the wheel 41 are provided. Therefore, the carrying handle 41 and the wheel 41 are provided. It is preferable that the rear surface 42 side is in front and the opposite front surface 47 is brought into contact with the transom 16A or the anchor 16C of the hull 16.

  In the power supply device 60 of the second embodiment, since the power supply device side connector 36 is provided on the back surface 42 of the case main body 30, the front face 47 of the case main body 30 is brought into contact with the transom 16 </ b> A or the anchor 16 </ b> C of the hull 16. Since 60 is installed on the hull 16, it is possible to prevent the power supply device side connector 36 from interfering with the installation of the power supply device 60.

  (6) Since the power supply device side connector 36 is disposed between the pair of shaft portions 43 of the carrying handle 40 on the back surface 42 of the case body 30 and the protective projections 61 are provided on each shaft portion 43, the power supply device 11. In particular, it is possible to prevent the power supply side connector 36 from colliding with an obstacle and being damaged during the movement.

[C] Third embodiment (FIGS. 13 to 15)
FIG. 13 is a rear view showing the power supply device of the third embodiment in the power supply structure of the electric outboard motor according to the present invention. In the third embodiment, the same parts as those in the first and second embodiments are denoted by the same reference numerals, and description thereof is simplified or omitted.

  The power supply device 70 of the third embodiment is different from the first embodiment in that a connector holder 71 protruding in a hook shape is provided on the back surface 42 of the case body 30 of the battery pack case 25 where the carrying handle 40 is installed, The power supply device side connector 36 is installed in the connector holder 71 with the connection port 36A facing downward.

  That is, as shown in FIGS. 13 and 14, the opening 72 is formed in the back surface 42 of the case body 30 of the battery pack case 25, and the connector holder 71 is attached so as to cover the opening 72. A sealing material 73 is interposed between the connector holder 71 and the periphery of the opening 72 of the case body 30. In the connector holder 71, a connector attachment port 75 is formed in a base portion 74 extending in the horizontal direction, and the power supply device side connector 36 is attached to the connector attachment port 75 with the connection port 36A facing downward. A rib 76 extends from the periphery of the base portion 74 of the connector holder 71 so as to surround the power supply device side connector 36.

  A sealing material 38 is interposed between the power supply device side connector 36 and the base portion 74 of the connector holder 71. The battery pack case 25 of the power supply device 70 is configured in a liquid-tight structure by the above-described sealing materials 73 and 38 and the sealing material 32 interposed between the case main body 30 and the lid member 31.

  Therefore, in the third embodiment, in addition to the same effects (1) to (5) as in the first and second embodiments, the following effect (7) is achieved.

  (7) The power supply device side connector 36 in the power supply device 70 is attached to the base portion 74 of the connector holder 71 protruding from the back surface 42 of the case body 30 of the battery pack case 25 with the connection port 36A facing downward. A rib 76 is provided so as to surround the power supply device side connector 36. Rain water and splashes of water traveling on the power supply device 70 installed on the hull 16 fall from above or obliquely from above. Accordingly, since these rainwater and wave splashes are blocked by the connector holder 71 and the ribs 76 and are not applied to the power supply device side connector 36, the connection port 36A of the power supply device side connector 36 directly receives rainwater and wave splashes. Can be prevented.

  As shown in FIG. 15, a lid 77 that can open and close the opening of the rib 76 may be provided so as to reliably cover the connection port 36 </ b> A of the power supply device side connector 36. In this case, the waterproof performance for the connection port 36 </ b> A of the power supply device side connector 36 is further improved by the lid 77.

  As mentioned above, although embodiment of this invention was described, this embodiment is shown as an example and is not intending limiting the range of invention. This embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention.

  For example, in the present embodiment, the external cable 12 extending from the outboard motor main body 13 of the electric outboard motor 10 and the internal cable 35 in the power supply devices 11, 60, 70 are on the outboard motor side on the external cable 12 side. The connector 37 and the power supply device side connector 36 on the internal cable 35 side are described as being detachably connected. However, the internal cable 35 penetrates the case main body 30 or the lid member 31 of the battery pack case 25 and the power supply device 11. , 60, 70, and may be configured to be directly connected to the outboard motor main body 13 of the electric outboard motor 10.

DESCRIPTION OF SYMBOLS 10 Electric outboard motor 11 Power supply device 12 External cable 15 Electric motor 16 Hull 25 Battery pack case 26 Battery pack 27 Battery pack holder (battery pack mounting part)
28 Battery Pack Control Unit 30 Case Main Body 30A Opening 31 Lid Member 36 Power Device Side Connector (Power Extraction Unit)
36A Connection port 40 Carrying handle 41 Wheel 42 Rear side (one side)
47 Front (other side)
48 Engagement part 49 Engagement part 60 Power supply 70 Power supply 71 Connector holder

Claims (4)

An electric outboard motor in which a power supply device that supplies electric power to an electric motor included in the electric outboard motor is provided separately from the electric outboard motor, and the electric outboard motor and the power supply device are connected via a cable. In the power supply structure of
The power supply device includes a packaged battery pack, a battery pack mounting unit to which the battery pack is attached and detached, a battery pack control unit that manages the state of the battery pack, the battery pack, the battery pack mounting unit, and A box-shaped battery pack case for storing the battery pack control unit;
The battery pack case includes a case body having an opening through which the battery pack can be inserted and removed, and a lid member capable of liquid-tightly closing the opening of the case body.
The said battery pack case, a carrying handle provided to extend in the vertical direction only on one side of the outer wall of the case body, the carrying handle is disposed only on the lower corner of the one side surface provided A wheel for assisting movement by the carrying handle, and a latch provided on the other side opposite to the one side of the outer wall of the case body provided with the carrying handle and installed on the hull side power structure of the electric outboard motor to the engaging portion for engaging the part, characterized in that provided. The power extraction unit of the power supply device that supplies power from the power supply device to the electric outboard motor is provided on one side surface of the outer wall of the battery pack case in which a carrying handle is installed. The power supply structure of the electric outboard motor of 1. The power extraction unit of the power supply device that supplies electric power from the power supply device to the electric outboard motor is a connector device that allows a cable connected to the electric outboard motor to be detachable. The power supply structure of the electric outboard motor of 2. The power supply structure for an electric outboard motor according to claim 3, wherein the connector device is attached to a connector holder protruding in a bowl shape from the outer wall of the case body in the battery pack case with a connection port facing downward. .

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