JP2013252735A - Outboard motor of racing boat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an environment-friendly outboard motor of a racing boat, which can be safely and promptly maintained.SOLUTION: An outboard motor 1 comprises in order from below: a lower unit 2; a motor unit 3 which is attachably/detachably mounted on the lower unit 2 from above; and a battery unit 4 which is attachably/detachably mounted on the motor unit 3 from above. A plurality of locking devices 15 are provided in a lower part of a peripheral side surface of a lid body 4A3 of the battery unit 4 and a lower part of a peripheral side surface of a box body 3A1 forming a box 3A of the motor unit 3. The battery unit 4 which is mounted on the motor unit 3 from above is attachably/detachably mounted and fixed via a packing 14 by means of the locking device 15.

Description

  The present invention relates to an outboard motor of a race boat which is a boat for boat racing.

  Conventionally, the driving source of a racing boat has been an engine (see, for example, Patent Document 1). However, there is a trend toward environmental problems in recent years, and environmentally friendly electric driving is required. Also, in boat racing, outboard motors are maintained independently by boat racers, and must be put into the best maintenance state in a limited time, and a structure that can safely and quickly maintain outboard motors is required. .

JP 2007-162903 A

  SUMMARY OF THE INVENTION An object of the present invention is to provide an outboard motor for a raceboat that is environmentally friendly and can be safely and quickly maintained.

  For this reason, the first invention is an outboard motor of a racing boat, and includes a battery unit provided with a battery from above, a motor unit provided with a drive motor capable of supplying power from the battery, and the drive motor. And a lower unit having a propeller that moves. The battery unit is attached to the lower unit through a packing that is detachable from above, and the battery unit is detachably attached to the motor unit from above. Is attached by a fixing means.

  A second invention is an outboard motor of a raceboat, and is rotated by the drive motor, a battery unit having a battery from above, a motor unit having a drive motor capable of supplying power from the battery, and the drive motor. And a lower unit including a propeller, and the battery unit is attached to the motor unit fixed to the lower unit by a fixing means through a packing so as to be detachable from above.

  A third invention is characterized in that, in the first or second invention, the battery unit is attached to the motor unit using the fixing means not using a tool.

  According to the present invention, it is possible to provide an outboard motor for a raceboat that is environmentally friendly, can be safely and quickly maintained, and can easily charge a battery unit.

It is a front view of the outboard motor of a raceboat. FIG. 3 is a right side view of the outboard motor. FIG. 4 is a right side view of the outboard motor partially broken. FIG. 3 is a schematic right side view of the outboard motor that is also disassembled. It is a figure which shows the state before locking by a locking device. It is a figure which shows the state after locking by a locking device. FIG. 4 is an enlarged view of a circle A in FIG. 3. FIG. 4 is an enlarged view of a circle B in FIG. 3. FIG. 4 is a right side view of the disassembled outboard motor. It is a figure which shows the electric shock protection battery circuit of 1st Embodiment. It is a circuit diagram for charging the battery cell of the electric shock protection battery circuit of 1st Embodiment. It is a figure which shows the electric shock protection battery circuit of 2nd Embodiment. It is a circuit diagram for charging the battery cell of the electric shock protection battery circuit of 2nd Embodiment.

  Hereinafter, an embodiment of an outboard motor 1 of a raceboat which is a boat for boat racing according to the present invention will be described with reference to FIGS. First, in FIGS. 1 to 3, the outboard motor 1 includes a lower unit 2, a motor unit 3 that is detachably attached to the lower unit 2 from above, and a battery that is detachably attached to the motor unit 3 from above. The unit 4 is configured.

  As shown in FIGS. 3 and 4, in the box 4 </ b> A of the battery unit 4, there are a plurality of battery cells 6, a protection relay 7 constituting a protection circuit electrically connected to the battery cells 6, and this protection relay. 7, a relay drive power supply circuit 8 (for example, a DC-DC converter) connected to the relay drive power circuit 8, a main power switch 9 connected to the relay drive power supply circuit 8, and the main power switch 9, a reed switch 10 which is a detection device connected to electrical wiring, a waterproof water sports connector (female side) 11 for connecting electrical wiring, and the like are disposed.

  The box body 4A is composed of an upper surface and four side surfaces, the box body 4A1 having an open lower surface, and the lower surface opening of the box body 4A1 has a frame plate shape for waterproofing and is arranged over the entire circumference. The lid 4A3 is closed through the provided packing 4A2 and includes the above-described lid 4A3 on which the battery cell 6 and the like are mounted. By this packing 4A2, it is possible to prevent water from entering the battery unit 4 from the gap between the box body 4 and the lid body 4A3. Accordingly, it is possible to prevent electric leakage due to the electrical components in the battery unit 4 getting wet with water and to prevent rust and corrosion of the components. The box body 4A1 and the lid body 4A3 are fixed by fixing means (not shown) such as bolts and nuts.

  Then, as shown in FIGS. 3 and 5 to 7, the battery unit 4 is detachably attached to the motor unit 3 through a packing 14 from above. That is, a plurality of locking devices 15 are provided on the lower part of the peripheral side surface of the lid 4A3 of the battery unit 4 and the lower part of the peripheral side surface of the box body 3A1 that forms the box 3A of the motor unit 3, and the locking device 15 Thus, the battery unit 4 placed on the motor unit 3 from above is detachably attached and fixed via the packing 14. Therefore, the packing 14 in contact with the box body 3A1 and the lid 4A3 can prevent water from entering the battery unit 4 from the gap between the battery unit 4 and the motor unit 3. Accordingly, it is possible to prevent electric leakage due to the electrical components in the battery unit 4 getting wet with water and to prevent rust and corrosion of the components.

  The locking device 15 as a fixing means is locked without using a tool for frequently removing the battery unit 4 from the motor unit 3 or attaching it in reverse, for charging. What can be done is desirable, and preferably no key is used.

  Hereinafter, the locking device 15 will be described. Reference numeral 16 denotes a hook in which a side surface portion is fixed and a lower portion is bent upward by tightening and rotating a screw 17 on the outer surface of the lid body 4A3 of the battery unit 4. , 18 is a mounting plate fixed to the outer surface of the box body 3A1 of the motor unit 3, 19 is a rotary knob supported rotatably on the mounting plate 18, and 20 is rotated above the rotary knob. It is a locking body that is supported so as to be locked to the hook 16.

  Therefore, in a state where the battery unit 4 is placed on the motor unit 3 from above via the packing 14, the rotary knob 19 is rotated upward to engage the locking body 20 with the hook 16. In this state, by rotating the rotary knob 19 downward, the battery unit 4 can be attached and fixed to the motor unit 3 in a watertight state.

  A lid 3A2 that closes the lower surface opening of the box body 3A1 forming the box 3A of the motor unit 3 through a packing 21 that is frame-shaped for waterproofing and disposed over the entire circumference. On the top, the printed circuit board 22 is fixed in a floating state, and a driving motor 23 that is a driving source of the outboard motor 1 of the raceboat is fixed. A motor controller 24 that controls the drive motor 23 and the like is mounted on the printed circuit board 22. Therefore, the packing 21 can prevent water from entering the motor unit 3 through the gap between the box body 3A1 and the lid 3A2. Accordingly, it is possible to prevent electrical leakage due to the electrical components in the motor unit 3 getting wet with water and to prevent rust and corrosion of the components.

  Reference numeral 25 denotes a waterproof water sports connector (male side) for connecting electrical wiring, which is connected to the connector (female side) 11. A magnet 26 is a detection body, and the magnet 26 is fixed to the inner surface of the upper surface of the box body 3A1 at a position close to the reed switch 10 fixed to the inner surface of the lid 4A3. 3, the reed switch 10 is closed in response to the magnet 26 when the battery unit 4 is attached. That is, when the battery unit 4 is placed on the motor unit 3 and the magnet 26 is close to the reed switch 10, a magnetic field is applied to the lead of the reed switch 10, the lead is magnetized, and the circuit is closed. The reed switch 10 is closed. Conversely, when the battery unit 4 is detached from the motor unit 3, the reed switch 10 is opened.

  Next, the lower unit 2 to which the motor unit 3 is detachably attached and fixed as shown in FIG. 8 will be described. That is, the motor is provided via the packing 28 which is formed on the upper surface 2A11 of the upper box body 2A1 forming the box body 2A of the lower unit 2 for waterproofing and disposed around the entire circumference. In a state where the unit 3 is placed, the plurality of bolts 30 serving as fixing means are fastened and rotated to be fixed via the washer 29. Therefore, the packing 28 can prevent water from entering the lower unit 2 through the gap between the lid 3A2 and the upper box body 2A1. Therefore, it is possible to prevent rust and corrosion of the components in the lower unit 2.

  A gear case 31 is connected to the upper box body 2A1 of the lower unit 2, a tail cap 33 is connected to the gear case 31, a propeller 34 is connected to one end, and a propeller having a bevel gear 32 at the other end. A shaft 35 is disposed in the tail cap 33 and the gear case 31 with a bearing 36A interposed.

  A drive shaft 38 that extends into the lower unit 2 is coupled to the output shaft of the drive motor 23 that extends downward via a coupling 37. The drive shaft 38 is disposed in the tail cap 33 and the upper box body 2A1 through a bearing 36B in the shaft support portion 42.

  A bevel gear 39 is provided at the lower end of the drive shaft 38. The bevel gear 39 meshes with the bevel gear 32 provided at the tip of the propeller shaft 35, and the rotational force of the drive shaft 38 extending in the vertical direction. Is transmitted to the propeller shaft 35 extending in the horizontal direction via both bevel gears 39 and 32. The bevel gears 32 and 39 constitute a rotation direction conversion mechanism.

  Further, a bracket device 40 for fixing the outboard motor 1 to a raceboat (not shown) is rotatably provided on a side surface portion of the lower unit 2. Fix it with a part in between.

  As shown in FIG. 9, when the lower unit 2, the motor unit 3, and the battery unit 4 are separated, these are assembled as shown in FIGS. 1 and 2, and the outboard motor is assembled. 1 is constructed. First, the motor unit 3 is first placed on the upper surface 2A11 of the upper box body 2A1 that forms the box 2A of the lower unit 2 via the packing 28, and the lower unit 2 and the motor unit 3 are connected. A plurality of bolts 30 are fixed via a washer 29.

  In this case, since the coupling 37 is fixed to the output shaft of the drive motor 23 of the motor unit 3, when the motor unit 3 is placed on the lower unit 2, After the drive shaft 38 and the coupling 37 are connected, the lower unit 2 and the motor unit 3 are fixed.

  Next, the battery unit 4 is placed on the motor unit 3 through the packing 14 from above, the rotary knob 19 is rotated upward, and the locking body 20 is engaged with the hook 16. In this state, the battery unit 4 is fixed to the motor unit 3 by rotating the rotary knob 19 downward.

  There is also a trend toward environmental problems in recent years, and environmentally friendly electric drive is required. Since the motor unit 3 including the drive motor 23 is detachably attached to the lower unit 2, it is currently used in boat racing. The motor unit 3 using the drive motor 23 as a power source can be used in place of the lower unit 2 instead of the unit using the power source as an engine. Therefore, since it can also be attached to the existing lower unit 2, it is not necessary to design the lower unit 2 anew, which can contribute to cost reduction.

  In boat racing, the maintenance of the outboard motor 1 is the self-maintenance of a boat racer, and it is necessary to have the best maintenance state in a limited time, and a structure that can safely and quickly maintain the outboard motor is required. Since the motor unit 3 is detachably attached to the lower unit 2 via bolts 30 as fixing means, the battery unit 4 is detachably attached to the motor unit 3 by the locking device 15 as fixing means. Therefore, the lower unit 2, the motor unit 3, and the battery unit 4 can be serviced.

  In addition, it is easy to remove the battery unit 4 from the motor unit 3 and charge the battery unit. In addition, the battery unit 4 having a problem in the charging capacity used is replaced with a new battery unit 4 having no other problem. It becomes possible to do.

  Next, a first embodiment of the electric shock protection battery circuit will be described with reference to FIG. One end of the plurality of battery cells 6 connected in series is connected to one contact of the main power switch 9 operated by a boat racer, and the other end of the plurality of battery cells 6 is connected to the switch 7A of the protection relay 7. One contact and the relay drive power supply circuit 8 are connected. The relay driving power circuit 8 is further connected to the other contact of the main power switch 9, and the other contact of the switch 7A of the protection relay 7 is connected to the plus terminal T1.

  One end of the coil 7B of the protection relay 7 is connected to one contact of the reed switch 10, and the other end of the coil 7B is connected to the other contact of the reed switch 10 via the relay drive power supply circuit 8. Connected. The other end side of the plurality of battery cells 6 is connected to the minus side terminal T2.

  The motor controller 24 for controlling the drive motor 23 is connected to a plus side terminal T3 and a minus side terminal T4. The motor controller 24 is connected to a throttle lever (not shown) operated by a boat race player.

  Next, the operation when the outboard motor 1 to which the lower unit 2, the motor unit 3, and the battery unit 4 are connected and fixed is fixed to a racing boat at a boat race track will be described. First, when a boat racer operates the main power switch 9 to close it, power is supplied to the relay driving power circuit 8 by the plurality of battery cells 6.

  Therefore, since the motor unit 3 and the battery unit 4 are connected, the reed switch 10 is closed by the magnet 26 which is close to the motor unit 3 and the coil of the relay driving power circuit 8 -protective relay 7. The protective relay 7 is excited by the closed circuit of the 7B-reed switch 10-relay driving power supply circuit 8, and the switch 7A is closed. Therefore, since the terminals T1 and T3 and the terminals T2 and T4 are connected, it is possible to supply power from the plurality of battery cells 6 to the drive motor 23 via the motor controller 24. When the player operates the throttle lever, the amount of current to the drive motor 23 is changed by the motor controller 24 (the resistance value of the internal variable resistor is changed) according to the operating degree, and the output is changed, The propulsion force of the propeller 34 changes and the moving speed of the boat race changes.

  Next, the operation of removing the battery unit 4 from the motor unit 3 and charging a plurality of battery cells 6 in the state where the main power switch 9 is opened will be described. First, as shown in FIG. 5 from the state shown in FIG. 6, the rotary knob 19 is turned upward to release the engagement between the locking body 20 and the hook 16. The rotation of the rotary knob 19 while being held down releases the fixation between the motor unit 3 and the battery unit 4.

  Next, the battery unit 4 is removed from the motor unit 3, and the battery unit 4 is set in a charger 45 having a charging circuit 43 and a magnet 44 as a detector (see FIG. 11). When the battery unit 4 is set in the charger 45, the reed switch 10 is attached to a position in the charger 45 where it can be detected that the magnet 44 has come close.

  When the battery unit 4 is removed from the motor unit 3, the connection between the terminals T1 and T3 is released and the connection between the terminals T2 and T4 is released, and the reed switch 10 is connected to the magnet 26. Since the reed switch 10 is opened upon detection of the removal of the battery unit 4, the protection relay 7 is demagnetized and the switch 7A is opened, so that the terminals T1, T2 and the terminals T3, T4 are connected. Since the power supply from the battery cell 6 is stopped, no current flows between the terminals T1 and T2 of the battery unit 4, and no current flows between the terminals T3 and T4 of the motor unit 3, so that the boat races. A player can be prevented from getting an electric shock. In addition, even if the terminals T1 and T2 are exposed on the surface of the battery unit 4 and are easily touched by hands, electric shock can be prevented.

  As described above, when the battery unit 4 is set in the charger 45, the terminals T1 and T5 and the terminals T2 and T6 are connected, and the magnet 44 and the reed switch 10 are close to each other. The lever switch 10 is closed. In this state, when a boat racer or the like operates and closes the main power switch 9, power is supplied to the relay driving power circuit 8 by the plurality of battery cells 6, and the reed switch 10 is closed. Therefore, the protection relay 7 is energized by the closed circuit of the relay driving power supply circuit 8 -the coil 7B of the protection relay 7 -the reed switch 10 -the relay driving power supply circuit 8 and closes the switch 7A.

  Therefore, the plurality of battery cells 6 are charged by the charging circuit 43 via the switch 7A of the protection relay 7. When the battery unit 4 is removed from the charger 45 after sufficient charging is completed, the connection between the terminals T1 and T5 is released, and the connection between the terminals T2 and T6 is released. Since the reed switch 10 is opened by detecting the removal of the battery unit 4 from the charger 45, the protective relay 7 is demagnetized and the switch 7A is opened. Since the supply of power from the battery cell 6 to the T1, T2 and the terminals T5, T6 is stopped, no current flows between the terminals T1, T2 of the battery unit 4, and it is possible to prevent a boat racer from getting an electric shock. .

  Next, a second embodiment of the electric shock protection battery circuit will be described with reference to FIGS. 12 and 13. In the second embodiment, differences from the first embodiment will be mainly described. That is, in the second embodiment, a relay drive power supply circuit 47 is used instead of the relay drive power supply circuit 8 of the first embodiment.

  As described above, the outboard motor 1 to which the lower unit 2, the motor unit 3, and the battery unit 4 are connected and fixed is fixed to the raceboat at the boat race track, and the boat racer operates the main power switch 9. Then, the power is supplied from the separate power circuit 47 for driving the relay and the reed switch 10 is closed. Therefore, the separate power circuit 47 for driving the relay-the coil 7B of the protective relay 7-the reed switch 10- The protective relay 7 is excited by the closed circuit of the main power switch 9-relay driving separate power circuit 47, and the switch 7A is closed. Therefore, since the terminals T1 and T3 and the terminals T2 and T4 are connected, it is possible to supply power from the plurality of battery cells 6 to the drive motor 23 via the motor controller 24. When the player operates the throttle lever, the propulsion force of the propeller 34 changes and the moving speed of the boat changes.

  Next, the operation of charging the plurality of battery cells 6 by removing the battery unit 4 from the motor unit 3 in the state where the main power switch 9 is opened will be described. First, the fixing of the motor unit 3 and the battery unit 4 is released, the battery unit 4 is detached from the motor unit 3, and the battery unit 4 is connected to a charger 45 having a charging circuit 43 and a magnet 44. set.

  When the battery unit 4 is removed from the motor unit 3, the connection between the terminals T1 and T3 is released and the connection between the terminals T2 and T4 is released, and the reed switch 10 is connected to the magnet 26. Since the reed switch 10 is opened upon detection of the removal of the battery unit 4, the protection relay 7 is demagnetized and the switch 7A is opened, so that the terminals T1, T2 and the terminals T3, T4 are connected. Since the power supply from the battery cell 6 is stopped, no current flows between the terminals T1 and T2 of the battery unit 4, and no current flows between the terminals T3 and T4 of the motor unit 3, so that the boat races. A player can be prevented from getting an electric shock.

  As described above, when the battery unit 4 is set in the charger 45, the terminals T1 and T5 and the terminals T2 and T6 are connected. 9 is operated and closed, power is supplied from the relay drive separate power supply circuit 47, and the magnet 44 and the reed switch 10 are close to each other and the reed switch 10 is closed. 47- Coil 7B of the protective relay 7- Reed switch 10- Main power switch 9- The closed circuit of the separate power circuit 47 for driving the relay energizes the protective relay 7, and closes the switch 7A.

  Therefore, the plurality of battery cells 6 are charged by the charging circuit 43 via the switch 7A of the protection relay 7. When the battery unit 4 is removed from the charger 45 after sufficient charging is completed, the connection between the terminals T1 and T5 is released, and the connection between the terminals T2 and T6 is released. Since the reed switch 10 is opened by detecting the removal of the battery unit 4 from the charger 45, the protective relay 7 is demagnetized and the switch 7A is opened. Since the supply of power from the battery cell 6 to the T1, T2 and the terminals T5, T6 is stopped, no current flows between the terminals T1, T2 of the battery unit 4, and it is possible to prevent a boat racer from getting an electric shock. .

  As described above, when the battery unit 4 is attached / detached to / from the motor unit 3 and when the battery unit 4 is attached / detached to / from the charger 45, the battery unit 4 alone is transported. In this case, it is possible to prevent electric shock from a boat racer or the like, and to provide a safe outboard motor for a race boat.

  Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description. It includes modifications or variations.

DESCRIPTION OF SYMBOLS 1 Outboard motor 2 Lower unit 3 Motor unit 4 Battery unit 14 Packing 15 Locking device 28 Packing 30 Bolt

Claims (3)

  An outboard motor for a racing boat, a battery unit having a battery from above, a motor unit having a drive motor capable of supplying power from the battery, and a lower unit having a propeller rotated by the drive motor The motor unit is attached to the lower unit through a packing so as to be detachable from above, and the battery unit is attached to the motor unit through a packing so as to be detachable from above. An outboard motor for a raceboat.   An outboard motor for a racing boat, a battery unit having a battery from above, a motor unit having a drive motor capable of supplying power from the battery, and a lower unit having a propeller rotated by the drive motor An outboard motor for a racing boat, wherein the battery unit is attached to the motor unit fixed to the lower unit through a packing so as to be detachable from above.   The outboard motor for a raceboat according to claim 1 or 2, wherein the battery unit is attached to the motor unit using the fixing means that does not use a tool.

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