Abstract

The invention relates to an electric motor comprising a housing (800) with a shaft (604) which is aligned in the direction of a longitudinal axis (L), an inner wall (801), and an outer wall (802) arranged about the inner wall, between which at least one section of a coolant channel (601) for a coolant flow runs, and comprising a rotor (606) arranged in the interior of the housing (800) and a stator (607). Ribs (803) which are aligned the direction of the longitudinal axis (L) are arranged between the inner wall (801) and the outer wall (802), said ribs forming lateral walls of the section of the coolant channel (601), and at least one rib (803) has a recess (804) which admits the coolant flow from one side of the at least one rib (803) to the other side of the at least one rib (803).

IPC Classes  ?

• H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
• H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
• H02K 5/15 - Mounting arrangements for bearing-shields or end plates
• B63B 34/10 - Power-driven personal watercraft, e.g. water scooters Accessories therefor
• B63B 32/10 - Motor-propelled water sports boards
• H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
• H02K 11/33 - Drive circuits, e.g. power electronics
• H02K 15/14 - CasingsEnclosuresSupports

Abstract

A surfboard with a deck (17), an electric drive for the surfboard (2), wherein one end of a rope (7) is fastened to the bow (4) of the surfboard (2) and another end of the rope (7) has a handle (8), wherein the drive is connected to a controller (21), which comprises a receiver (25) of a wireless remote control, and the handle (8) has an accelerator lever (23) which is connected to a transmitter (24) of the wireless remote control in a data conducting manner, and the transmitter (24) is arranged in the handle (8), and by actuation of the accelerator lever (23) control signals can be generated, which can be transmitted by the transmitter (24) as wireless signals and can be received by the receiver (25) and can be converted by the controller (21) into control values for the drive.

IPC Classes  ?

• B63B 32/10 - Motor-propelled water sports boards
• B63B 32/70 - Accessories not specially adapted for a particular type of board, e.g. paddings or buoyancy elements
• B63H 11/08 - Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type

Abstract

b) is inelastic.

IPC Classes  ?

• B63B 32/51 - Inflatable boards, e.g. drop-stitch inflatable boards
• B63B 32/10 - Motor-propelled water sports boards

Abstract

A surfboard with an electric drive (2), a battery for the electric drive (2), said battery being arranged in a battery housing (3), a first recess (4) for the battery housing (3), and a handle (5) on the battery housing (3), wherein the handle (5) is designed as a bracket handle which is mounted pivotably around a respective centre of rotation (21) at each of the handle ends on opposite sides (6) of the battery housing (3), and in each case a lug (9) protrudes from the base side of the recess below the centres of rotation (21) inside the first recess (4), and at each handle end of the bracket handle a second projection (33) is formed, which has a curved edge (34) and which rests on the lug, and a distance between a contact point of the curved edge (34) with the lug (9).

IPC Classes  ?

• B60L 53/80 - Exchanging energy storage elements, e.g. removable batteries
• B63B 32/10 - Motor-propelled water sports boards
• B63B 32/50 - Boards characterised by their constructional features
• H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
• H01M 50/262 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders with fastening means, e.g. locks
• H01M 50/256 - Carrying devices, e.g. belts
• B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
• B63B 32/40 - Twintip boardsWakeboardsSurfboardsWindsurfing boardsPaddle boards, e.g. SUP boardsAccessories specially adapted therefor
• B63B 32/57 - Boards characterised by the material, e.g. laminated materials
• B63B 32/51 - Inflatable boards, e.g. drop-stitch inflatable boards

Abstract

The invention relates to a surfboard with an electric drive (2), a battery for the electric drive (2), said battery being arranged in a battery housing (3), a first recess (4) for the battery housing (3), and a handle (5) on the battery housing (3), wherein the handle (5) is designed as a D-shaped bracket handle which is pivotally mounted on opposite sides (6) of the battery housing (3) and has a locking mechanism (7) for the first recess (4).

IPC Classes  ?

• B63B 32/10 - Motor-propelled water sports boards
• B60L 50/64 - Constructional details of batteries specially adapted for electric vehicles
• H01M 50/20 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders
• B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor

Abstract

The invention relates to an inflatable surfboard having a hull component (2) with a receptacle (4) at the stern end, a drive unit (3) which fits into the receptacle (4) at the stern end in a positively locking manner, and a gap (6) on the underwater surface between the hull component (2) and the drive unit (3), wherein an overlap (8) which covers the gap (6) at least in some sections is arranged on an underwater surface (7) of the hull component (2).

IPC Classes  ?

• B63B 32/51 - Inflatable boards, e.g. drop-stitch inflatable boards
• B63B 32/10 - Motor-propelled water sports boards
• B63B 32/40 - Twintip boardsWakeboardsSurfboardsWindsurfing boardsPaddle boards, e.g. SUP boardsAccessories specially adapted therefor
• B63B 32/77 - Arrangements for fixation of accessories to the board, e.g. inserts or rails
• B63B 32/53 - Sectionalised boards, e.g. modular, dismountable or foldable boards
• B63B 32/57 - Boards characterised by the material, e.g. laminated materials

Abstract

b, 11) form a connection to one another and a position of the inserted drive component (7) in the receptacle (2) is secured in the direction of the tread surface.

IPC Classes  ?

• B63B 32/10 - Motor-propelled water sports boards
• B63B 7/08 - Inflatable
• B63H 11/00 - Marine propulsion by water jets
• B63B 32/51 - Inflatable boards, e.g. drop-stitch inflatable boards

Abstract

b, 11) form a connection to one another and a position of the inserted drive component (7) in the receptacle (2) is secured in the direction of the tread surface.

IPC Classes  ?

• B63B 35/79 - Surf-boards, e.g. sailboards
• B63B 7/08 - Inflatable
• B63H 11/00 - Marine propulsion by water jets

Abstract

The invention relates to a water sport device having a sitting or standing surface (2) for a person practicing water sports, a jet drive (8) and a pivotable nozzle (13), wherein a fin (23) is disposed at the nozzle (13) and is arranged in a fixed position relative to said nozzle.

IPC Classes  ?

• B63H 11/117 - Pivoted vane
• B63H 11/113 - Pivoted outlet
• B63B 35/79 - Surf-boards, e.g. sailboards
• B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor