EP4021793A1 - Système de motorisation électrique pour embarcation, telle qu'une planche de surf ou de paddle, avec moyens de refroidissement - Google Patents
Système de motorisation électrique pour embarcation, telle qu'une planche de surf ou de paddle, avec moyens de refroidissementInfo
- Publication number
- EP4021793A1 EP4021793A1 EP20775187.6A EP20775187A EP4021793A1 EP 4021793 A1 EP4021793 A1 EP 4021793A1 EP 20775187 A EP20775187 A EP 20775187A EP 4021793 A1 EP4021793 A1 EP 4021793A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- enclosure
- assembly
- elongate assembly
- stator
- boat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/10—Motor-propelled water sports boards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
- B63B34/10—Power-driven personal watercraft, e.g. water scooters; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B79/00—Monitoring properties or operating parameters of vessels in operation
- B63B79/40—Monitoring properties or operating parameters of vessels in operation for controlling the operation of vessels, e.g. monitoring their speed, routing or maintenance schedules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H23/00—Transmitting power from propulsion power plant to propulsive elements
- B63H23/32—Other parts
- B63H23/34—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
- H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2791—Surface mounted magnets; Inset magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/22—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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T70/00—Maritime or waterways transport
- Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system
- Y02T70/5218—Less carbon-intensive fuels, e.g. natural gas, biofuels
- Y02T70/5236—Renewable or hybrid-electric solutions
Definitions
- the present invention relates to a motorization system for an electrically assisted watercraft for transporting a user on water. It finds application in particular in the field of surfboards, paddle boards, or even windsurfing boards, as well as in the field of kayaking or canoeing.
- a surfboard As For example, the purpose of a surfboard is to allow a user to glide over the water under the propelling action provided by a wave. Generally, in the absence of a wave in a given area where the user is, the user, lying on the board, uses his arms to provide the necessary propulsion for the board to reach an area where a wave is formed or in progress. training.
- paddle board which, in turn, is intended to allow a user to glide over water under the propulsion action of a user with a paddle.
- the paddle board can also allow the user to glide across the water under the propelling action of a wave.
- craft which allow a user to navigate the water, by means of a mechanical propelling action that the user provides himself directly or by means of a means such as one or more paddles or oars, and / or by means of a propelling action provided by the environment such as wind or a wave.
- these boats can be fitted with '' electric assistance, that is to say of an electric motorization system which drives mechanical propulsion means such as a propeller.
- marine propulsion propulsion requires that the propeller be rotated at a relatively low speed, to avoid propeller cavitation phenomena.
- motors of the "inrunner” type in which the internal core rotates in a fixed outer cage
- motors of the "outrunner” or rotating cage type in which the outer cage rotates around the fixed inner core
- Motors of the “inrunner” type can be relatively easily cooled because the external part being fixed, it can be brought into contact with a cooling system provided for this purpose.
- these motors generally run very fast, and therefore require the use of reducers to avoid the cavitation phenomena mentioned above. This results in loss of efficiency and increased mechanical complexity, with correspondingly increased maintenance and costs.
- the invention aims in particular to provide an electric motorization system for a craft, such as a surfboard or paddle board, configured to be connected to a source of electrical energy.
- the system comprises a sealed enclosure intended to be integrated into or on a boat, in which the enclosure are arranged a rotor and a stator, and an axis connected by a first end to the rotor and sealingly projecting outside the enclosure. by a second end opposite to its first end.
- the axis is adapted to be connected by its second end to means of propulsion of a boat, such as a propeller, so that when the system is supplied with electrical energy, the rotor starts to rotate and drives the axis. in this rotation.
- the system further comprises cooling means. These cooling means comprise at least a first elongate assembly, at least partially metallic, a first end of which is disposed inside the enclosure. This elongated assembly protrudes in a sealed manner outside the enclosure via a second end opposite its first end, so as to allow the conduction of heat from the inside to the outside of the enclosure along said first end. elongated set.
- the system further comprises one or more of the following characteristics, taken in isolation or in any technically possible combination: - the first end of the first elongate assembly is fixed to the stator;
- the stator comprises at least one fixing element, such as a fixing plate, and the first end of the first elongate assembly is integral with said fixing element;
- the first elongate assembly comprises at least a first part, such as a rod, formed integrally with at least part of the stator;
- the first elongate assembly comprises at least a first part, such as a rod, forced into a housing provided in the stator, said housing comprising a pasty heat-conducting material, such as a heat-conducting silicone;
- the first part of the first elongate assembly is a rod with a substantially circular section;
- the first elongate assembly is a rod with a circular section projecting from the enclosure in a sealed manner by means of an O-ring;
- the system comprises an electronic control unit configured to control the operation and the electrical energy supply of said system, and fixed to the stator, so as to create a thermal path between the control unit and the first elongate assembly to allow conduction of the heat emitted by the control unit to the exterior of the enclosure along said thermal path and the first elongate assembly;
- the system comprises an electronic control unit arranged inside the enclosure and configured to control the operation and the supply of electrical energy to the system
- the cooling means comprise at least a second elongated assembly, at least partially metal, fixed by a first end to the control unit and protruding in a sealed manner outside the enclosure by a second end opposite its first end, so as to allow the conduction of heat from the control unit to the outside of the enclosure along the second elongated assembly;
- - at least part of the second elongate assembly is a rod with a substantially circular section;
- the second elongated assembly is a rod with a circular section projecting from the enclosure in a sealed manner by means of an O-ring;
- the second end of the first and / or second elongate assemblies has lamellae spaced apart and formed parallel to the axis of the first, respectively second, elongate assemblies;
- the rotor includes a rotating cage, and the stator includes a fixed core arranged inside the cage.
- the invention also relates, according to a second aspect, to a boat, such as a surfboard or paddle board, with electric assistance, comprising propulsion means capable of allowing the boat to progress on or in the boat. water, and a source of electric power.
- a boat such as a surfboard or paddle board
- propulsion means capable of allowing the boat to progress on or in the boat. water, and a source of electric power.
- the boat further comprises an electric motorization system as presented above, whose sealed enclosure is integrated on or in the boat, and whose axis is connected by its second end to the propulsion means, so as to allow the drive of the propulsion means when the drive system is supplied with electrical energy by said source, and the cooling of the drive system by heat exchange between the second end of the first elongate assembly and the surrounding water.
- the motorization system of the invention makes it possible to obtain an electrically assisted boat whose propulsion does not require a complex mechanical part, expensive and requiring special maintenance, such as a reduction gear, or complicated cooling means, also expensive and requiring special maintenance.
- the heat is removed along a thermal path guided by an elongated assembly.
- FIG. 1 schematic representation of a first example of a system according to the invention outside its sealed enclosure
- FIG. 2 schematic representation of the example of Figure 1, in longitudinal section, integrated into its sealed enclosure and connected to the propulsion means of a boat;
- FIG. 3 schematic representation of the example of Figure 1, in perspective, integrated into its sealed enclosure and connected to the propulsion means of a boat;
- FIG. 4 schematic representation of an example of a boat according to the invention, integrating the system of Figure 1;
- FIG. 5 schematic representation of a second example of a system according to the invention, in longitudinal section, integrated into its sealed enclosure and connected to the propulsion means of a boat;
- the electric motorization system for a boat 30 is configured to be connected to a source of electrical energy (not shown), such as a battery, which is also placed on or in the boat 30.
- the system comprises a sealed enclosure 1, intended to be integrated on or in the electrically assisted boat 30, as seen on the example of FIG. 4.
- the boat 30 is of the surfboard or paddle board type.
- the boat 30 comprises propulsion means 20 intended to allow its progression in the water, such as a propeller 20, connected to one end of the axis 4 of the motorization system which will be described in detail later. , the other end of the axis 4 being disposed inside the enclosure 1 and therefore not visible in FIG. 4.
- the boat 30 also comprises the source of electrical energy mentioned above, not shown.
- the first elongated assembly 5 of the cooling means of the motorization system protrude through one of their ends from the enclosure 1. , their other end being disposed inside the enclosure 1 and therefore not visible in Figures 3, 4 and 6.
- the entire motorization system is integrated into the boat 1, so that this end of the first elongated assembly 5 (and possibly the second elongated assembly 6) protruding from the enclosure 1 is found in the surrounding water when the craft is in or on the water.
- the propulsion means 20 are driven by the axis 4 and the motorization system can be cooled by heat exchange between the end of the first assembly.
- the enclosure 1 is closed in particular by a wall 15, through which the axis 4 and the first elongate assembly 5 protrude in a sealed manner (and possibly the second elongate assembly 6) , and extends beyond this wall 15 to form a turbine inside which the propulsion means 20 are both protected and in motion.
- This wall 15 is inclined with respect to the axis 4 and the longitudinal axis of the boat 30, so as not to create a surface rupture with respect to the main surface of the boat 30, which would be detrimental to the boat. 'hydrodynamics and the performance of the propulsion means 20.
- the end of the first elongated assembly 5 (and possibly of the second elongated assembly 6) protruding from the enclosure 1, in the examples of FIGS. 3, 4 and 6, is flush with the surface of the wall 15.
- a larger projection is not necessarily necessary to obtain the desired cooling effect, and could here again be detrimental to the hydrodynamics and to the performance of the propulsion means 20.
- this wall 15 is inclined such as as explained above, provision is made to bevel this end of the first elongate assembly 5 (and possibly of the second elongate assembly 6) projecting from the enclosure 1 so that this end follows the inclined surface of the wall 15.
- the turbine part of the enclosure 1 could quite simply be absent, the part of the axis 4 projecting from the enclosure 1 and the propulsion means 20 being housed in a housing provided in the boat 30 as an extension of the enclosure 1, or even protruding outside the boat 30 out of any accommodation.
- the turbine part could be present but distinct from the enclosure 1.
- the motorization system comprises a rotor 2 and a stator 3, 7, arranged inside the sealed enclosure 1.
- the axis 4 is connected by a first end to the rotor 2 and protrudes in a sealed manner outside the enclosure 1 by its second end opposite the first in order to be able to be connected to the propulsion means 20 of the boat 30 as explained above .
- Sealing means 14 of the seal type are provided to ensure the sealing of the enclosure 1 at the level of the passage of the axis 4.
- Cooling means 5 (in the example of Figures 1 to 4) or 5, 6 (in the example of Figures 5 and 6) are provided.
- These means 5, 6 comprise one or more elongated assemblies 5, 6, at least partially metallic, the respective first ends of which are disposed inside the enclosure 1.
- These elongated assemblies 5, 6 also protrude in a sealed manner. the exterior of the enclosure 1 by second respective ends, opposite their respective first ends.
- Sealing means 13, respectively 16, of the joint type are provided to seal the enclosure 1 at the level of the respective passages of the elongated assemblies 5, 6.
- the first end of the first elongate assembly 5 is fixed to the stator 3, 7.
- This stator 3, 7 may comprise a stator part 3 proper, and a fixing element 7, for example a fixing plate 7.
- the first end of the first elongate assembly 5 is preferably fixed to this element of fixing 7.
- the first elongate assembly 5 comprises at least a first part, such as a rod 5, formed integrally with at least part of the stator 3, 7.
- the first elongate assembly 5 comprises at least a first part, such as a rod 5, forcibly inserted into a housing provided in the stator 3, 7.
- the housing comprises a pasty heat-conducting material, such as a heat-conducting silicone.
- first elongate assembly 5 is formed integrally with any part of the stator 3, 7, or whether it is forced into a housing provided in the stator 3, 7, it is formed integrally by a heat-conducting metal rod.
- An electronic control unit 10 is provided and configured to control the operation and the supply of electrical power to the drive system.
- a control unit conventionally comprises a microcontroller positioned in an electronic circuit formed on an electronic card 11.
- this control unit 10 can be fixed to the stator 3, 7, for example by means of a fixing support 12 which is itself fixed directly to the stator part 3 or to the fixing element 7.
- the electronic card is supported by the fixing support 12, while coming to be connected electronically by means of connection in particular to the stator 3, 7.
- the cooling means 5, 6 of the motorization system comprise at least one second elongated assembly, in this case the elongated assembly 6, which has already been presented above.
- this second elongate assembly 6 is at least partially metallic. It is also fixed by a first end to the control unit 10, and protrudes in a sealed manner outside the enclosure 1 by a second end opposite its first end.
- This configuration allows the conduction of heat from the control unit 10 to the outside of the enclosure 1 along the second elongate assembly 6.
- This second elongate assembly 6, like the first elongate assembly 5, may be a rod 6, or comprise a part in the form of a rod.
- the rod 5, 6 or the rod-shaped part of the first, respectively second, elongate assembly 5, 6, preferably has a substantially circular section.
- the sealing means 13, respectively 16, presented above, can be O-rings.
- the respective second end (s) of the first and / or second elongate assemblies 5, 6 have strips 8, 9 spaced apart and formed parallel to the axis of the first, respectively second, elongate assemblies 5, 6
- This configuration increases the heat exchange surface between the respective ends of the first and second elongated assemblies 5, 6 with the surrounding water, once the motorization system has been integrated into the boat 30, and once this boat 30 is placed in it. or on the water.
- the slats 8 arranged at the second end of the first elongated assembly 5, and the slats 9 arranged at the second end of the second elongated assembly 6, form radiators which make it possible to disperse the heat more quickly in the surrounding water thanks to a increased heat exchange surface.
- the motorization system includes an engine part of the type "Outrunner”.
- the rotor 2 comprises a rotating cage 2
- the stator 3, 7 comprises a fixed core 3 arranged inside the cage 2.
- this configuration is particularly advantageous because it allows the rotor to turn less quickly than in a configuration with an “inrunner” type motor (fixed cage and rotating core), by maximizing the interaction diameter. between the coils arranged at the center and the magnets arranged at the periphery.
- This configuration therefore does not require the use of a reducer, which reduces cost and maintenance.
- the motorization system can include an engine part of the "inrunner” type, with a rotating core and a fixed outer cage which can constitute the enclosure 1.
- the first elongate assembly 5 (and possibly the second elongate assembly 6) can be supported on the enclosure 1 itself which constitutes the fixed part of the engine, to obtain the heat produced by the operation of the engine and the drive outside.
- the present description is given by way of example, and is not limiting of the invention.
- the invention is not limited to a boat of the surfboard type, but extends to boats such as a paddle board or sailing. More generally, the invention is not limited to a board type boat, but extends to any electrically assisted boat, such as a canoe or a kayak.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Multiple Motors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1909454A FR3100222A1 (fr) | 2019-08-28 | 2019-08-28 | Système de motorisation électrique pour embarcation, telle qu’une planche de surf ou de paddle, avec moyens de refroidissement |
PCT/EP2020/074072 WO2021038037A1 (fr) | 2019-08-28 | 2020-08-28 | Système de motorisation électrique pour embarcation, telle qu'une planche de surf ou de paddle, avec moyens de refroidissement |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4021793A1 true EP4021793A1 (fr) | 2022-07-06 |
Family
ID=69810902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20775187.6A Withdrawn EP4021793A1 (fr) | 2019-08-28 | 2020-08-28 | Système de motorisation électrique pour embarcation, telle qu'une planche de surf ou de paddle, avec moyens de refroidissement |
Country Status (8)
Country | Link |
---|---|
US (1) | US20220324538A1 (fr) |
EP (1) | EP4021793A1 (fr) |
JP (1) | JP2022546377A (fr) |
CN (1) | CN114286781A (fr) |
AU (1) | AU2020339725A1 (fr) |
FR (1) | FR3100222A1 (fr) |
TW (1) | TWI780474B (fr) |
WO (1) | WO2021038037A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116917201A (zh) * | 2022-08-19 | 2023-10-20 | 广东逸动科技有限公司 | 推进器及水域可移动设备 |
USD989208S1 (en) * | 2022-12-12 | 2023-06-13 | Shenzhen Feilun Technology Co., Ltd. | Electric surfboard |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5490768A (en) * | 1993-12-09 | 1996-02-13 | Westinghouse Electric Corporation | Water jet propulsor powered by an integral canned electric motor |
DE10258778A1 (de) * | 2002-12-16 | 2004-07-22 | Siemens Ag | Elektrische Maschine mit Heatpipes |
TW200831353A (en) * | 2007-01-16 | 2008-08-01 | Joy Ride Technology Co Ltd | Electric surfboard |
ES2748154T3 (es) * | 2009-10-27 | 2020-03-13 | Christopher Preston | Tabla para deportes acuáticos motorizada |
AU2012254885A1 (en) * | 2011-11-16 | 2013-05-30 | Paul Martin | Electrically powered surfboard |
DE102013214087A1 (de) * | 2013-07-18 | 2015-01-22 | Siemens Aktiengesellschaft | Elektrischer Gondelantrieb für ein Schiff |
EP3020625A1 (fr) * | 2014-11-13 | 2016-05-18 | Siemens Aktiengesellschaft | Entraînement de nacelle électrique |
DE102015000259B4 (de) * | 2015-01-16 | 2016-12-29 | Cayago Gmbh | Schwimm- und Tauchhilfe |
CN108028566B (zh) * | 2015-09-22 | 2020-01-07 | 西门子公司 | 旋转电机的冷却 |
US10597118B2 (en) * | 2016-09-12 | 2020-03-24 | Kai Concepts, LLC | Watercraft device with hydrofoil and electric propeller system |
CN109895964B (zh) * | 2017-12-07 | 2023-05-26 | 优机国际有限公司 | 推进模块、冷却系统和冲浪设备 |
DE102018102740A1 (de) * | 2018-02-07 | 2019-08-08 | Lsp Innovative Automotive Systems Gmbh | Außenstator für eine Drehfeldmaschine (E-Motor) mit einem Innenrotor, mit Statorzahngruppen, welche jeweils zwei zueinander benachbarte Statorzähne aufweisen |
DE102018102750A1 (de) * | 2018-02-07 | 2019-08-08 | IPGATE Capital Holding AG | Stator für Drehfeldmaschine mit axialer Wärmeableitung |
-
2019
- 2019-08-28 FR FR1909454A patent/FR3100222A1/fr not_active Withdrawn
-
2020
- 2020-08-28 WO PCT/EP2020/074072 patent/WO2021038037A1/fr unknown
- 2020-08-28 AU AU2020339725A patent/AU2020339725A1/en active Pending
- 2020-08-28 TW TW109129451A patent/TWI780474B/zh active
- 2020-08-28 CN CN202080060091.1A patent/CN114286781A/zh active Pending
- 2020-08-28 EP EP20775187.6A patent/EP4021793A1/fr not_active Withdrawn
- 2020-08-28 JP JP2022512805A patent/JP2022546377A/ja active Pending
- 2020-08-28 US US17/639,133 patent/US20220324538A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
AU2020339725A1 (en) | 2022-03-17 |
TW202114908A (zh) | 2021-04-16 |
US20220324538A1 (en) | 2022-10-13 |
CN114286781A (zh) | 2022-04-05 |
JP2022546377A (ja) | 2022-11-04 |
TWI780474B (zh) | 2022-10-11 |
WO2021038037A1 (fr) | 2021-03-04 |
FR3100222A1 (fr) | 2021-03-05 |
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