WO2014108231A2 - Moteur logé dans un moyeu de roue et procédé permettant de rendre étanche un moteur logé dans un moyeu de roue - Google Patents

Moteur logé dans un moyeu de roue et procédé permettant de rendre étanche un moteur logé dans un moyeu de roue Download PDF

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Publication number
WO2014108231A2
WO2014108231A2 PCT/EP2013/074262 EP2013074262W WO2014108231A2 WO 2014108231 A2 WO2014108231 A2 WO 2014108231A2 EP 2013074262 W EP2013074262 W EP 2013074262W WO 2014108231 A2 WO2014108231 A2 WO 2014108231A2
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
motor
stator
sealing element
seal
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.)
Ceased
Application number
PCT/EP2013/074262
Other languages
German (de)
English (en)
Other versions
WO2014108231A3 (fr
Inventor
Gunter Freitag
Klaus Schleicher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP13798972.9A priority Critical patent/EP2923435A2/fr
Publication of WO2014108231A2 publication Critical patent/WO2014108231A2/fr
Publication of WO2014108231A3 publication Critical patent/WO2014108231A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/164—Sealings between relatively-moving surfaces the sealing action depending on movements; pressure difference, temperature or presence of leaking fluid
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
    • H02K5/173—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
    • H02K5/1735—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 radially supporting the rotary shaft at only one end of the rotor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/085—Structural association with bearings radially supporting the rotary shaft at only one end of the rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/36—Vehicles designed to transport cargo, e.g. trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/14—Synchronous machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/18—Reluctance machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/40—Electrical machine applications
    • B60L2220/44—Wheel Hub motors, i.e. integrated in the wheel hub
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/10—Vehicle control parameters
    • B60L2240/12—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/421—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/423—Torque
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • 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
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Definitions

  • the invention relates to a wheel hub motor with Dichtungsele ⁇ ment and an associated method for sealing a wheel ⁇ hub motor.
  • Wheel hub motors are used in particular in electric motor vehicles, ie in electric cars or electric trucks.
  • the wheel hub motor is an electric motor that can be located in the rim.
  • An air gap between stator and rotor may have a radius of, for example, greater than 75 percent of the radius of the rim, to achieve a high Drehmo ⁇ ment.
  • the wheel hub motor of the invention may include:
  • sealing element between the stator and the rotor, wherein the sealing element is attached to the rotor
  • sealing element has a protruding part, which bears against the stator when the motor is at a standstill
  • the protruding part is arranged and configured such that when the rotor rotates a centrifugal force acts on the protruding part, which creates a gap between the protruding part and the stator.
  • the inventive method for sealing a wheel hub motor may include:
  • the wheel hub motor can contain:
  • sealing element between the stator and the rotor, wherein the sealing element is attached to the rotor
  • sealing element has a protruding part, which bears against the stator when the motor is at a standstill
  • the protruding part is arranged and configured such that when the rotor rotates a centrifugal force acts on the protruding part, which creates a gap between the protruding part and the stator.
  • the wheel hub motor can be designed as an internal rotor or as an external rotor.
  • the stator In the inner rotor, the stator is arranged on the outside and the rotor is arranged inside the stator.
  • the rotor In the external rotor, the rotor is arranged outside and the stator is arranged inside the rotor. In both cases there is an air gap between the rotor and the stator in which a torque is generated.
  • the motor may include permanent magnets disposed on the rotor so that power supplies to a rotating part are not required.
  • the rotor can also be made in a different construction, e.g. as reluctance motor, short-circuit rotor or synchronous motor with external excitation, i. with coils on the rotor.
  • the stator may contain coils that pass around a laminated iron yoke or on another magnetic flux Structure wound or arranged.
  • the control of the coils can be done, for example, with methods of field-oriented control, in particular encoderless or with a separate rotation angle sensor.
  • the protruding part of the sealing element can protrude from a Be ⁇ fastening part of the sealing element.
  • This buildin ⁇ actuating part can not move due to the attachment itself by centrifugal force.
  • the fastening part may also be characterized as the main body or main part of the sealing element and may also contain the majority of the mass of the sealing element.
  • the mass of the protruding part can be selected by suitable measures so that the seal opens from a desired speed. These measures include:
  • a high static sealing effect can be ensured at standstill, for example.
  • the sealing lip or by constructive measures that enhance the pressing in particular using the penetrating liquid or the penetrating medium, e.g. Air with fine drops of water.
  • the training is based on the idea that the wheel hub motor at a standstill and even at slow speeds, for example, less than 30 kilometers per hour, should be well sealed, especially against stagnant water, eg in a deeper puddle.
  • the seal in the drive must not the efficiency of the engine strong impression ⁇ pregnant.
  • too rapid wear of the sealing element should be avoided.
  • a good seal must be ensured, in particular against sprayed water.
  • a sealing element having a protruding part, which is preferably integrally connected to a main part and which moves by centrifugal force relative to the main part.
  • the protruding part can form ei ⁇ ne sealing lip, which dissolves at high speeds by a sealing surface, so that premature wear of the sealing element is avoided, in particular by friction and by increased temperature.
  • sealing element By opening the sealing element creates the possi ⁇ ability to use a further sealing element for the dynamic case for sealing.
  • the sealing member may be manufactured in one piece, that is from a cast, and in particular with metal inserts or metal ring ⁇ ring inclusions or metal braid.
  • the sealing element can not contain any metal.
  • a multi-piece production is possible, for example, with less than three items.
  • the sealing element may be formed in one piece at the connection point between the main part and the protruding part, which reduces wear, in particular during the relative movement of the projecting part and the main part.
  • the protruding part can be flexible in itself, which can also mean low wear by the lifting movement as a result of centrifugal force.
  • the sealing element may be designed annular, in ⁇ particular as a V-ring or as a U-ring or G-ring also as Radial shaft seal according to DIN 3760 is called.
  • the U-ring or G-ring (radial shaft seal) can also be referred to as Simmerring.
  • a variety of seals come into question, which is explained in more detail below, eg gap seal, labyrinth seal, centrifugal shaft seal, etc.
  • the forming gap by the centrifugal force, a gap ⁇ width in the range of 0.001 millimeters to 0.5 millimeters have what can be achieved by design measures.
  • the maximum gap width can be, for example, 0.5 millimeters or less, which can likewise be achieved by suitable measures.
  • a gap width or gap width of, for example, 0.01 to 0.09 millimeters can be set by a non-linear stiffness ⁇ speed.
  • the rotating rotor may have a speed in the range of 200 revolutions per minute to, for example, 1000 revolutions per minute or more when the gap is formed.
  • the motor may be an internal rotor motor, wherein the protruding part may touch the stator in the axial direction with respect to the axis of rotation of the rotor. Additionally or alternatively, the protruding part in the axial direction can be lifted by the centrifugal force from the stator.
  • the internal rotor motor is based on a different design principle compared to an external rotor, which may, for example, depending on the overall concept of the vehicle or the chassis benefits.
  • the contact in the axial direction and / or the lifting in the axial direction allow - in a Innfriendlyrmotor - the Use of other materials or materials with different properties compared to a radial contact and / or radial lifting. Thus, for example, softer materials can be used and / or materials with a lower material rigidity.
  • Seal member may be facilitated.
  • the axial seal places less demands on assembly as compared to a radial seal, i. fits, etc.
  • the motor may in turn be an internal rotor motor, wherein the protruding part of the stator in the radial direction with respect to the axis of rotation of the rotor touches. Alternatively or additionally, the protruding part in the radial direction can be lifted by the centrifugal force from the stator.
  • the contact in the radial direction and / or the lifting in the radial direction allow the use of other materials or materials with different properties compared to an axial contact and / or axial lifting.
  • harder materials can be used and / or materials with a higher material rigidity.
  • the assembly or disassembly of the sealing element can be facilitated.
  • the motor may be an external rotor motor, wherein the protruding part of the stator in the axial direction with respect to the rotational axis of the rotor touches.
  • the protruding part in the axial direction is lifted by the centrifugal force from the stator.
  • the air gap can be arranged further outwards in the given installation space and when permanent magnets are used, which can lead to a larger air gap diameter and thus to a higher torque in comparison to an internal rotor.
  • the contact in the axial direction and / or the lifting in the axial direction make it possible - even in the case of an external rotor motor - to use other materials or materials with different properties compared to a radial contact and / or a radial lift-off.
  • softer materials can be used and / or materials with a lower material rigidity.
  • the assembly or disassembly of the sealing element can be facilitated.
  • the motor may in turn be an external rotor motor, wherein the protruding part of the stator in the radial direction with respect to the axis of rotation of the rotor touches.
  • the protruding part in the radial direction can be lifted by the centrifugal force from the stator.
  • the contact in the radial direction and / or the lift-off in the radial direction make it possible to use other materials or materials with different properties in comparison to an axial contact and / or axial lift-off.
  • harder materials can be used and / or materials with a higher material rigidity.
  • the assembly or disassembly of the sealing element can be facilitated.
  • the protruding part of the sealing element can protrude directly from a main body of the sealing element, to which the sealing element is attached to the rotor.
  • the sealing element can be a sealing ring with a V-shaped cross-section, ie a V-ring.
  • the angle may, for example, be in the range of 30 angular degrees to 75 degrees. Real values can be and will be delivered after tests. Between these surfaces penetrating liquid can cause an additional sealing effect.
  • the main body of the V-ring may, for example, have one of the following cross-sections: rectangle, parallelogram, trapezoid, etc.
  • the protruding part of the V-ring may, for example, have a rectangular or wedge-shaped cross section.
  • a V-ring can be made in comparison to, for example, a U-ring with softer materials. At the point of contact it may be one of the penetrating
  • Fluid side facing a larger angle between the contact surface on the engine and a surface on the sealing lip in comparison to an angle to ei ⁇ nem interior of the engine is out, with the smaller angle between the contact surface on the engine and another
  • the larger angle may be at least 30 percent greater than the smaller angle relative to the smaller angle.
  • the smaller angle may be in the range of 10 to 30 degree angle Win ⁇ kelgrad, in particular based on a reasonable not pressed sealing lip.
  • the protruding part of the sealing element may alternatively be arranged on a freely arranged middle part of the sealing element .
  • the central part may be arranged on a main part of the sealing element , on which the Dichtungsele ⁇ ment is attached to the rotor.
  • you ⁇ processing element can be referred to as U-ring, oil ring, or shaft seal, and in particular metal deposits or metal contain or have essays.
  • Main part, middle part and ab ⁇ stationary part can be made in one piece with each other, for example as a casting.
  • the main body of the U-ring may, for example, have a rectangular cross-section.
  • the middle part of the U-ring can, for example.
  • the protruding part of the U-ring may, for example, have a rectangular or wedge-shaped cross-section.
  • the angle between facing surfaces of the main body and middle portion may be in the range of 80 degrees to 100 degrees, preferably 90 degrees.
  • the angle between facing surfaces of central portion and protruding portion may be in the range of 90 degrees to 110 degrees, preferably 100 degrees.
  • the U-ring can be made stiffer than, for example, a V-ring, which can bring constructive advantages.
  • the mating surface on the engine and a surface on the sealing lip there may be a larger angle between the mating surface on the engine and a surface on the sealing lip than an angle toward an interior of the engine toward a side facing the penetrating liquid, with the smaller angle between the mating surface Contact surface on the engine and another surface of the sealing lip is formed.
  • the larger angle may be at least 30 percent greater than the smaller angle relative to the smaller angle.
  • the smaller angle may be in the range of 10 to 30 degree angle Win ⁇ kelgrad, in particular based on a reasonable not pressed sealing lip.
  • At least one further seal can be arranged between the rotor and the stator.
  • the further seal may in particular ⁇ be provided for the dynamic case and, for example, in the static case have a reduced sealing effect or an unchanged sealing effect.
  • the additional seal can be a labyrinth seal, preferably with at least four bends in the labyrinth path, and in particular a labyrinth seal with meshing circumferential surfaces relative to the rotational axis of the rotor, the assembly he ⁇ facilitated.
  • the labyrinth path between the two opposing sealing surfaces can, for example, be wave-shaped, zigzag-shaped, or U-shaped with angled corners.
  • the gap width of the gap of the labyrinth seal is so- ⁇ selected that results in a good sealing effect, especially in the dynamic case.
  • the further seal may be or include a slinger which ejects penetrating liquid in the radial direction.
  • a slinger which ejects penetrating liquid in the radial direction.
  • the further seal may be a gap seal with a preferably straight gap of a gap width less than 2 millimeters or less than 1 millimeter and a gap length in the radial or axial direction in the range of 10 millimeters to 100 millimeters or more.
  • a gap gap with a straight gap is particularly easy to produce, especially using already existing design elements.
  • seals may also be used for the dynamic fall, in particular radial shaft seals or gaskets in which the liquid thrown away is discharged through channels again, in particular outwards, e.g. using gravity.
  • a plate with at least three preferably detachable connections can be fastened to the stator, for example a screw connection.
  • permanent joints are used, for example. Welds or welds.
  • On the plate or on an element attached to the plate may lie a contact area at which the protruding part of the sealing element contacts the stator.
  • the plate can be sealed to the stator with another sealing element, in particular a static sealing O-ring or a static sealing gasket.
  • the connection can be a simple installation, possibly even easy disassembly. Sealing with an O-ring or gasket is particularly easy.
  • a further plate or disc is attached to the plate, re insbesonde ⁇ an annular plate or disk.
  • a further preferably before ⁇ releasable connection and a further seal may be provided for mounting the plate farther.
  • a retaining plate In an external rotor motor on the rotor a retaining plate, for example.
  • Bolted connections may be buildin ⁇ saturated with at least three, preferably releasable connections. Alternatively un- detachable or non-destructive detachable connections are ver ⁇ spent.
  • the sealing element On the plate, the sealing element may be attached, for example. By vulcanization and / or using a groove and / or using a clamping ring.
  • the plate can be sealed to the rotor with a further sealing element, in particular an O-ring or a flat gasket.
  • a further sealing element in particular an O-ring or a flat gasket.
  • the sealing element with the ab ⁇ stationary part has an outer diameter which has at least 80 percent of a rim diameter.
  • the rim diameter may be a nominal size eg 15, inches, 17 inches or 19 inches or other dimension, for example in the range of 5 inches (quad) up to
  • the sealing element with the protruding part has an outer diameter which has at most 60 percent or at most 50 percent of a rim diameter.
  • the circumferential length of the seal is relatively small, which facilitates their production.
  • the liquid ⁇ entry may be smaller than further out in the vicinity of the axis of rotation of the rotor.
  • a method for sealing a wheel hub motor comprising:
  • the V-ring has at its base a wider area than on a base facing away from and opposite top surface, which, for example, can facilitate the mounting of the V-ring.
  • the following materials are used for the sealing element with the protruding part or also for the other sealing elements of the engine:
  • Nitrile butanediene rubber NBR nitrile butanediene rubber
  • EPDM ethylene propylene diene monomer (M-class) rubber
  • a seal is given for a wheel hub motor.
  • Hub motors may require a seal with a larger scale than normal electrical on ⁇ gear due to design.
  • wheel hub motors are exposed to water and similar media due to their position in the wheel. You should be immersion-proof and also withstand great Spritzdrü ⁇ bridge.
  • the seal should not generate too much friction because it adversely affects the efficiency of the wheel hub motor and wears the seal due to heat.
  • Standard shaft seals from the industry could be used. Eg radial shaft seals. The sealing effect of these standard shaft seals is limited by the peripheral speeds or they are not acceptable from the cost. The installation effort is acceptable for standard seals, since usually the sealing lip rubs against steel, eg hardened steel. In the wheel hub motor, however, there may be difficulties with standard seals, for example because of the small installation space and / or due to, for example, to steel softer aluminum parts.
  • Hub motors should only be able to move at standstill and at walking pace, i. e.g. less than 5 kilometers per hour, be submersible. Spraying pressures occur only while driving. Therefore, a contact seal is combined with a non-contact seal. A sealing lip takes over the sealing function when stationary, but at a given speed, it is released by the centrifugal force. At the same time there is a non-contact barrier seal (for example a centrifuge shaft seal or another sealing seal which seals in the dynamic case).
  • a non-contact barrier seal for example a centrifuge shaft seal or another sealing seal which seals in the dynamic case.
  • the release of the sealing lip of the contacting seal is not the application limit of the seal with this sealing lip, but is intended. This reduces the friction of the seal and no longer reduces the effect ⁇ degree.
  • the sealing lip does not wear during or as long as the centrifugal force prevents contact. Stands the vehicle, no centrifugal force acts and the sealing lip ver ⁇ closes the gap in the wheel hub motor effectively. For example, the vehicle can park in a puddle. Spray pressures occur only at higher speeds. Now only the non-contact seal works. Because it works without contact, also occurs no friction. Since the wear is reduced, a maintenance-free seal can be made at low cost.
  • FIG. 1 shows a wheel hub inner rotor motor with an axially widening or lifting sealing lip of a sealing element and with a centrifugal seal
  • FIG. 2 shows the wheel hub inner rotor motor with the sealing lip of the sealing element open
  • FIG. 4 shows a wheel hub inner rotor motor with an axially widening or lifting sealing lip of a sealing element and with a gap seal
  • FIG. 5 shows a wheel hub inner rotor motor with a radially widening or lifting sealing lip of a sealing element and with a labyrinth seal
  • FIG. 6 shows a wheel hub inner rotor motor with an axially widening or lifting sealing lip of a sealing element
  • FIG. 7 shows a wheel hub external rotor motor with a radially widening or lifting sealing lip of a sealing element
  • FIG. 8 shows a wheel hub external rotor motor with axially widening or repealing sealing lip of a sealing element
  • FIG. 1 shows a wheel-hub internal-rotor motor 10 a with an axially widening or lifting seal lip 36 of a sealing element 34 and with a centrifugal seal 37.
  • the motor 10a includes a rotor 12a and a stator 14a.
  • the stator 14a contains externally a cylindrical ring which is closed on one side by an example.
  • Annular side wall which is optionally reinforced by radial ribs, so that forms an inner motor space in the interior of the ring.
  • the side wall is connected to the ist ⁇ facing away from the engine compartment side with a fixation 16a determines the example is.
  • stator plate 15a On the free side of the ring of the stator 14a is a stator plate 15a, which is formed, for example, as a disc ring or circular ⁇ ring and covers an engine compartment. On the ring of the stator 14a, not shown magnetic coils are arranged on ⁇ , which are wound around iron cores.
  • the rotor 12a also includes a cylindrical ring which is rotatably mounted about the axis of rotation A.
  • the ring of the stator 14a and the ring of the rotor 12a are coaxially zueinan ⁇ mounted, wherein the ring of the rotor 12a is disposed within the ring of the stator 14a.
  • the ring of the rotor 12 a has a smaller height than the ring of the stator 14 a, so that it can be angeord ⁇ net in the interior of the engine.
  • the rotor 12a contains on the cylindrical ring on one side an example.
  • Annular side wall which is optionally reinforced by radial ribs, so that forms a rotor interior in the interior of the ring.
  • the side wall of the rotor 12c is shown in the fi gure 1 ⁇ view on the right.
  • the rotor shaft is also located on this side wall.
  • the rotor 12a is mounted on the stator 14a through a bearing 18a, for example, includes using a cone groove bearing, the zuein ⁇ other strained cone.
  • the rotor 12a can rotate about the rotation axis A in the interior of the stator 14a.
  • the rotor 12a and the stator 14a are shown greatly shortened in the radial direction in FIG.
  • the motor 10a is completely within a rim 20a.
  • the rim 20a is, for example, a 15, 17 or a 19 inch rim. Al ⁇ tively the rim 20a can have a different nominal size, see Introduction.
  • the rim 20a has on its right in the figure 1 side a rim support 21a, the example. As a circular
  • the rim carrier 21a may include ribs.
  • a tire 22a is mounted, which contains, for example, a rubber compound and steel inserts.
  • a distance A2a shows the distance of an outer edge of the sealing element 34 to the axis of rotation A. In Figure 1, this distance is less than 50 percent of a distance A4a from the axis A to the rim 20a, in particular up to a point on the rim 20a, the half nominal size of the rim corresponds.
  • a screw connection 24a serves to fasten the stator plate 15a to the stator 14a. Between the stator plate 15a and the stator may be provided along the circumferential direction, a seal 26a, for example, a static sealing 0- ring or a static sealing gasket. Apart from the screw connection 24a, further screw connections for fastening the stator plate 15a to the stator 14a can be provided.
  • a screw 28a or other screw, not shown, are used to attach a stop plate 39, which, for example, is again formed annularly.
  • the stopper plate 39 extends radially inward from the stator plate 15a.
  • a gasket 30a is interposed between the stator plate 15a and the stopper plate 39, eg, a statically sealing O-ring or a static sealing gasket.
  • a screw 32a is used to attach the rim 20a or more precisely the rim support 21a on the rotor 12a.
  • the Ro ⁇ gate 12a has an outwardly facing rotor shaft on which the screw 32a is fixed.
  • Other non Darge ⁇ set screw used for fastening the rim 20a on the rotor shaft.
  • the sealing element 34 and a centrifugal disc 37 are arranged, which is optional.
  • a main body 35 of the sealing element 34 is located on the rotor shaft on the centrifugal disc 35th
  • the seal member 34 may be press-fitted to the rotor shaft in a groove or groove. Even vulcanization or another type of fastening is possible.
  • the centrifugal disk 37 entrained liquid is taken radially outward and thus leads to a dynamic seal in the interior of the seal chamber.
  • the sealing lip 36 will be explained in more detail below with reference to FIG. At a standstill and at low rotational speeds of the rotor 12a, the sealing lip 36 bears against the stop plate 39, thus forming an effective static seal.
  • V-ring 34 another Dichtungsele ⁇ ment can be used, for example, a U-ring, as for example, below with reference to Figures 4, 5 and 7 is explained in more detail.
  • the free leg of the U can have an inclination which corresponds to the inclination of the sealing lip 36, ie, for example, based on the axis of rotation A.
  • an L-shaped design can be used, wherein the one leg is fixed to the rotor shaft of the rotor 12a.
  • centrifugal disc 37 may be the same width channels or gaps or to each other different width channels or column.
  • a labyrinth seal can be used which, for example, similar to the labyrinth seal shown in Figure 5 on the projection 38, for example. formed in cooperation with the centrifugal disc 37 and / or between the stop plate 39 and rotor 12a.
  • one or both sides and fins or wings can be designed to enhance the entrainment ⁇ effect of penetrated liquid.
  • the seal 34 may, for example, be stretched beyond the disc 37 during assembly.
  • the disc 37 can also be mounted after the assembly of the seal 34.
  • the sealing chamber or the sealing space and thus the outer edge of the seal is further offset outwardly, as seen in the radial direction, e.g. in an area greater than 80 percent of the rim radius.
  • the stop plate 39 is ⁇ sets. Thereafter, the seal 34 is mounted, then the Schleu- disc 35 and at the end of the rotor plate 15 a.
  • a two-part rotor plate 15a and / or stop ⁇ plate 39 may be used, if necessary, additionally provided with static sealing sealing elements.
  • FIG. 2 shows the wheel hub internal rotor motor 10 with the sealing lip 36 of the sealing element 34 open
  • Direction of rotation arrow 40 indicates a high speed.
  • 3 shows a cross section through the Dichtungsele ⁇ ment 34 with the sealing lip 36.
  • the main body 35 has a rectangular cross-section with two mutually parallel surfaces 35a (bottom surface) and 35c (top surface) and two mutually parallel side surfaces 35b (right) and 35d (left)
  • the sealing lip 36 is disposed on the main body 35, namely on the side surface 35d.
  • the sealing lip 36 and the main body 35 are formed integrally.
  • the bottom surface 35a has the same width in the axial direction as the top surface 35c.
  • this width of the bottom surface 35a can also be greater than the width of the top surface 35c, for example by more than 20% relative to the width of the top surface 35c, see the illustration in FIG. 1 and in FIG.
  • a bottom surface 36a extends from the bottom surface 35a to a surface 36c of the lip 36.
  • the surface 36c is adjacent to a surface 36d.
  • Between the surfaces 36c and 36d is a Be ⁇ rrittungsline or surface of the lip 36 and the Berhausenungsflä ⁇ surface 39a of the stopper plate 39.
  • From an upper edge of surface 36d is a surface 36b to a lower edge of the surface extends 35d.
  • FIG. 3 also shows a liquid FL which has penetrated into the sealing space.
  • An angle Wl lies between the surface 36d and the contact surface 39a.
  • An angle W2 is between the surface 36c and the contact surface 39a.
  • the angle Wl is greater than the angle W2.
  • the ranges given in the introduction for angles W1 and W2 apply.
  • An angle W3 is between the surface 36b and the surface 35d.
  • the angle W3 is, for example, 45 angular degrees large. Alternatively, the sizes mentioned in the introduction for this angle apply.
  • An (axial) length LI of the surface 36d and a length L2 of the surface 36c are suitably chosen, wherein the LEN ⁇ ge LI may be smaller than the length L2, for example, less than half the length L2.
  • FIG. 3 a width B of the resulting gap between the contact surface 39a and the sealing lip 36 is also shown.
  • the gap widths B mentioned in the introduction apply at the speeds also mentioned in the introduction.
  • rounded edges can be produced.
  • the notch or groove at the apex of the angle W3 can be formed in a suitable form, in order for example.
  • the shape of the seal lip 36 can be varied ⁇ the, for example. Thicker toward the end.
  • a material for the seal 34 a material could be selected, for example, corresponds to the material of a harder eraser. As for the material referred to above in a ⁇ line material list. Other aspect ratios of the sealing element 34 may also be used, as shown in FIG. When designing the sealing element 34 for higher temperatures Teflonmate ⁇ materials can be used. Furthermore, 36 metal inserts or metal attachments can be used in the main body 35 and / or in the sealing lip.
  • FIG. 4 shows a wheel hub internal rotor motor 10c with an axially widening or lifting sealing lip of a sealing element and with a gap seal.
  • 10c, 12c, 14c, 15c, 16c, 18c, 20c, 21c, 22c, 24c With regard to the reference numerals 10c, 12c, 14c, 15c, 16c, 18c, 20c, 21c, 22c, 24c,
  • 26c, 32c, A2c and A4c applies the above with reference to the figure 1 for the reference numerals 10a, 12a, 14a, 15a, 16a, 18a, 20a, 21a, 22a, 24a, 26a, 32a, A2a and A4a said. So corresponds eg. the stator 14c has the stator 14a, etc.
  • the motor 10c has the same construction as the motor 10a. In the motor 10c, there is no projection 38 corresponding projection. The motor 10c also lacks a stop plate 39 corresponding stop plate.
  • the gap 48 has, for example, a length in the axial direction of greater than 10 millimeters and a gap width of less than 2 millimeters or even less than 1 millimeter. The length of the gap 48 results, for example, from the available space.
  • a sealing ring 41 In the sealing chamber of the engine 10c is a sealing ring 41. Instead of the V-ring 36 is in the motor 10c a U-shaped ring 41 used, which has seen in cross-section the following components or contains:
  • An elongated sealing lip 47 which is from the central part 46 at an angle of about 100 to 110 degrees inwardly from ⁇ and which abuts radially at its free end at the free end of the projection 44 when the motor 10c is turned off and the rotor 12c still stands or turns only at low speeds.
  • the gap 48 thus forms a gap seal.
  • the gap 49 forms a gap seal.
  • the gap seal in the gap 49 can also be formed as a labyrinth seal.
  • the sealing lip 47 is formed at its free end similar ge ⁇ like the sealing lip 36, ie there is a larger angle Wl, which lies in the direction of the penetrating liquid and a smaller angle W2, which is the motor interior of the engine 10c out.
  • the sealing lip 47 can be performed in comparison with the sealing lip 36 with a larger mass, which in total made possible a more rigid seal 41 ⁇ light compared to the seal 34.
  • the middle part 46 can act as an additional spring element when pressing the sealing lip 47th
  • the sealing lip 47 can also be arranged almost parallel to the projection 44, for example at an angle smaller than 15 degrees.
  • the projection 42 is also angled downwards and a seal is used which has only one leg corresponding to the middle part 46 and one sealing lip 47 corresponding sealing lip 47, so that the main part 45 corresponding portion is missing.
  • a V-ring 10c as the V-ring 36 is used in unverif ⁇ dertem protrusion 42 with angled or downward projection whose sealing lip is in the same range as the sealing lip ⁇ 47th
  • the U-ring 41 and the corresponding above-mentioned seals may also be designed as a radial shaft seal or as a G-ring, in particular with inside or outside metal reinforcement. At higher operating temperatures, Teflon materials may also be used in or on the U-ring 41. With respect to the material of the U-ring reference is made to the materials mentioned in the on ⁇ line. The exact dimensions depend on the design conditions in the relevant engine 10c.
  • the U-ring 41 or the corresponding above-mentioned seals can be vulcanized on the projection 42 or on the rotor 12c. Alternatively or additionally, a tongue and groove system can be used for attachment. An outwardly pressing spring ring can also be used for fastening the U-ring 41 or a seal used instead of the U-ring 41.
  • the U-ring 41 or the corresponding above-mentioned seals can also be arranged closer to the axis of rotation A than shown in FIG.
  • a distance A2c from the axis of rotation A to the outer edge of the seal 41 in the installed state greater than 80 percent of the distance A4c, ie the rim radius.
  • A2c From ⁇ stand is less than 60 percent or even less than 50 percent of the distance A4c.
  • FIG. 5 shows a wheel hub inner rotor motor 10d with a radially widening or lifting sealing lip 57 of a sealing element 51 and with an additional labyrinth seal.
  • the engine 10d is constructed like the engine 10c except for the deviations explained below.
  • the stator 14d corresponds to the stator 14a, etc.
  • the end part 54 is also formed parallel to the side wall of the rotor 12d.
  • projections 53 which are in ⁇ handle with projections on the end portion 54.
  • the sealing member 51 is formed as the sealing member 41 ⁇ , ie U-shaped.
  • the main part 45 corresponds to a main part 55.
  • the middle part 46 corresponds to a central part 56 and the sealing lip 47 corresponds to a sealing lip 57, wherein the statements made for the sealing element 41 also apply to the sealing element 51.
  • the labyrinth seal comprising the projections 53 and 54 providing a better dynamic seal than the gap 48.
  • FIG. 6 shows a wheel hub internal rotor motor LOE with radially dilating or abriolder sealing lip 66 of a sealing element 61.
  • the motor is constructed to lOd to the illustrated in Fol ⁇ constricting variations as the motor 10a.
  • 10e, 12e, 14e, 15e, 16e, 18e With regard to the reference symbols 10e, 12e, 14e, 15e, 16e, 18e,
  • stator 14e corresponds to the stator 14a, etc.
  • the motor 10e has no stop plate 39 and no projection 38 compared to the motor 10a. In place of the optional centrifugal disk 37, there is an optional one in the engine 10e
  • Disc 63 On the rotor plate 15e, there is an axially inwardly set stop 62, which has a parallel to the rotor disc arranged contact surface for the sealing lip 66 of a V-ring 61, which has a main part 65 with rectangular ⁇ cross-section and a sealing lip 66, the eg. slightly wider than the sealing lip 36 is executed. Incidentally, the statements made with reference to FIG. 3 for the V-ring 36 also apply to the V-ring 61. If the disc 63 is present, a sealing chamber will pass through the disc 63, through the stop 62 and through the rotor shaft of the rotor 12e and the stator plate 15e formed.
  • a two-part rotor plate 15e including the stop 62 are mounted.
  • the disc 63 may in this case be fixedly connected to the rotor shaft of the rotor 12e. Possibly. If desired, the sealing element 61 can also be stretched over the disc 63 during assembly.
  • the rotor plate 15e may, for example, be made in two parts, i. e.g. two halves, but this requires further sealing measures.
  • a one-piece rotor disk can be used to 15e including ⁇ impact 62nd After assembly of the one-piece rotor plate 15e, the sealing member 65 is mounted and then the disc 63, in particular with axial tension.
  • the V-ring 61 may be fixed to the rotor shaft and / or to the disc 63, in particular with the abovementioned means, such as press fit, vulcanization, tongue and groove, metal ring, etc.
  • ribs or wings can be attached, which favor the liquid transport in the radial direction gene.
  • stator 15e there may be channels in the radial direction, which favor a drainage of the liquid.
  • FIG. 7 shows a wheel hub external rotor motor 100a with a radially extending sealing lip 77 of a sealing element 71.
  • a rotor 120a rotates about the axis of rotation A.
  • the motor 10a includes a stator 140a arranged inside the rotor 120a.
  • the stator 140a contains on the outside a cylindrical ring, which is closed on one side by an example. Circular side wall, which is optionally reinforced by radial ribs, so that forms a stator interior in the interior of the ring.
  • the side wall is connected to the ist ⁇ facing away from the internal stator side with a fixation 160a fixed, the example is.
  • the Be ⁇ tenwand the stator 140a is located on the right side.
  • a rotor ⁇ shaft is not present.
  • the rotor 120a also includes a cylindrical ring which is rotatably mounted about the rotation axis A.
  • the cylindrical ring of the stator 140a and the cylindrical ring of the rotor 120a are mounted coaxially with each other, wherein the ring of the rotor 120a outside the ring of the stator 14a angeord ⁇ net.
  • Disposed on the inside of the ring of the rotor 120a are permanent magnets M2 which are driven by a rotating magnetic field generated by the coils of the stator 140a.
  • One side of the ring of the rotor 120a is closed by a circular disk. On the free side of the
  • Ring rotor 120a is - right in Figure 7 - egg ⁇ ne rotor plate 150a, which is formed, for example, as a disc ring or circle ⁇ ring and covering an engine compartment of the engine 100.
  • the ring of the stator 140a has a smaller height than the ring of the rotor 120a in the axial direction, so that it can be arranged in the interior of the motor 100a.
  • the rotor 120a is mounted on the stator 140 through a bearing 180a, for example, contains by means of a deep groove ball bearing which zuein ⁇ other strained cone.
  • the rotor 120a can rotate around the rotation axis A and also around the stator 140a.
  • the rotor 120a and the stator 140a are shown greatly shortened in the radial direction in FIG.
  • the motor 100a is completely within a rim 200a.
  • Rim 200a is, for example, a 15, 17 or a 19 inch rim. Al ⁇ tively the rim 200a may have a different nominal size, see Introduction.
  • the rim 200a has on its left side in FIG. 7 a rim carrier 210a which, for example, is also designed as a circular disk. Alternatively, the rim carrier 210a may include ribs.
  • a tire 220a which contains, for example, a rubber compound and steel inserts.
  • a distance A20a shows the distance of an outer edge of the sealing element 71 to the rotation axis A. In Figure 7, this distance is less than 50 percent or even less than 30 Pro ⁇ centered a distance A40A from the axis A to the rim 20a, and in particular to a Point on the rim 20a, which corresponds to half the nominal size of the rim.
  • the distance A20a can be selected to be smaller than the distance A2a, since no Fel ⁇ genbefest Trenten the rim 200a must be taken into account. Namely, the rim mounts of the rim 200a are on the other side of the motor 100a.
  • a screw 240a and other screw not shown serve to attach the rotor plate 150a to the rotor 120a.
  • a seal 260a may be provided between the rotor plate 150a and the rotor 120a along the circumferential direction, e.g. a static sealing o-ring or a static sealing gasket.
  • Screw 240a can be further screw to the Fixing the rotor plate 150a may be provided on the rotor 120a.
  • a screw 320a is used to attach the rim 200a or more precisely the rim support 210a on the rotor 120a.
  • the rotor 120a has an outwardly facing side wall to which the screw joint 320a is attached. More not represent ⁇ Asked screw connections serve to attach the rim 200a on the rotor side wall. Possibly.
  • a rotor shaft can again be formed on the rotor 120a.
  • the rotor plate 150a At the end of the rotor plate 150a, there is a circumferential and axially inward projection 72.
  • the rotor plate 150 may be reinforced at its end.
  • another type of attachment of the tire to the engine 100a may be selected, eg, directly on the rotor 120a, ie, without the use of an additional rim.
  • a sealing space which is enclosed on all sides in general. Liquid can penetrate into this sealing chamber only through a gap 88 that lies between the free end of the rotor plate 150a and the stator shaft of the stator 140a paral lel ⁇ to the rotational axis A.
  • the gap 88 has, for example, a length in the axial direction of greater than 10 millimeters and a gap width of at most 2 millimeters or at most 1 millimeter. Between the projection 72 and the stator 140 is a radial gap 89. The length of the gap 88 and 89 results, for example, from the available space.
  • a U-shaped sealing ring 71 which has seen in cross-section the following components or contains:
  • An elongated sealing lip 77 which is from the central portion 46 at an angle of about 100 to 110 degree of angle to the outside ⁇ and radially abuts at its free end on the stator shaft of Sta ⁇ sector 140 a, when the motor 100 a is turned off and the rotor 120 a stands still or turns only at low speeds.
  • the gap 88 thus forms a gap seal.
  • the gap 89 also forms a gap seal.
  • the gap seal in the gap 89 can also be formed as a labyrinth seal.
  • the sealing lip 77 is formed at its free end similar ge ⁇ like the sealing lip 36, ie there is a larger angle Wl, which lies in the direction of the penetrating liquid and a smaller angle W2, which is the motor interior of the motor 100a out.
  • the sealing lip 77 may be performed in comparison with the log ⁇ tung lip 36 having a larger mass, which is an overall biegesteifere seal 71 allows compared to the seal 34.
  • the middle part 76 may as an additional spring element acting during the pressing of the sealing lip 77th
  • the sealing lip 77 can also be almost parallel to the stator generating the stator 140a are arranged, for example in a Win ⁇ angle smaller than 15 angular degrees.)
  • a seal 77 has corresponding seal lip 77 only one the central portion 76 entspre ⁇ sponding leg and one of the sealing lip, so that there is no the main part 75 corresponding section there.
  • a V-ring such as the V-ring 36 is in unverän ⁇ dertem projection 72 or used to angled downward projection 72 whose
  • the U-ring 71 or the corresponding above-mentioned seals can also be configured as a radial shaft sealing ring or as a G-ring, in particular with internal or external metal reinforcement.
  • Teflon materials can also be used in or on the U-ring 71.
  • the material of the U-ring 71 reference is made to the materials mentioned in the introduction. The exact dimensions depend on the design conditions in the relevant engine 100a.
  • the U-ring 71 or the corresponding above-mentioned seals can be vulcanized on the projection 72 or on the rotor 120a.
  • a tongue and groove system for attachment 80 of the U-ring 71 and the other said seals can be used.
  • An outwardly pressing spring ring can also be used for fastening the U-ring 71 or a seal used instead of the U-ring 71.
  • FIG. 8 shows a wheel-hub external-rotor motor 100b with an axially widening or lifting sealing lip 336 of a sealing element 331.
  • the wheel-hub motor 100b is constructed in the same way as the wheel-hub motor 100a, except for the differences explained below.
  • the projection 72 there is a pre ⁇ jump 330 in the motor 100b which protrudes at the inner edge of the rotor plate 150b in axia ⁇ ler inward direction.
  • the projection 330 extends parallel to the stator shaft.
  • a drain disc 332 is on the stator shaft of the stator
  • gap 334 which may also be formed as a gap seal, e.g. as a labyrinth seal.
  • a sealing chamber is formed between Statorsei ⁇ tenwand, stator shaft,isationoption 332 and projection 330 and a portion of the end of the rotor plate 150 b.
  • a V-ring is buildin ⁇ Untitled 331 at a bottom or a side facing the stator shaft side of the projection 350th
  • On the inside of the drain disk 332 is a
  • a main body 335 of the seal member 331 has, for example, a rectangular or trapezoidal cross-section.
  • the sealing element 331 may be fastened to the projection 330 on its surface facing away from the vertex of the V on the rotor, for example, in a groove or groove by press-fitting, if necessary by using a clamping ring which presses outwards. Also up vulcanize or other fastening is possible as buildin ⁇ actuation 338th As for the material of the Dichtungsele ⁇ mentes 331 reference is made to that mentioned in the introductory material ⁇ list. Also Teflon materials, metal inserts or metal attachments can in or on the sealing element 331 USAGE ⁇ be det.
  • the sealing lip 336 corresponds to the sealing lip 36, which has been explained in detail above with reference to FIG 3. At standstill and at low rotational speeds of the rotor 120b, the sealing lip 336 is located on the inside of the drainage disc
  • another Dichtungsele ⁇ ment can be used, for example, a U-ring, as for example.
  • the free leg of the U can have a slope which corresponds to the inclination of the sealing lip 36, ie, for example, based on the Drehach ⁇ se A.
  • an L-shaped sealing element can be used, wherein the one leg can be attached to a extension ⁇ tion of the projection 330 in the radial direction inwardly.
  • the seal 331 may, for example during assembly. Be stretched over the drain ⁇ disc 332 out.
  • the drain disc 332 can also be mounted after the assembly of the seal 34.
  • FIG. 9 shows a wheel hub external rotor motor 100c with a rim-near sealing element 350.
  • the wheel hub motor 100c is constructed in the same way as the wheel hub motor 100a or 100b, except for the differences explained below.
  • the above applies to the reference numerals 100a, 120a, 140a, 160a, 180a, 200a with reference to FIGS. 7 and 8, respectively , 210a, 220a, 320a, A20a and A40a and 100b, 120b, 140b, 160b, 180b, 200b, 210b, 220b, 320b, A20b and A40b, respectively.
  • the stator 140b corresponds to the stator 140a, etc.
  • a seal member 350 is located between the ring of the rotor 120c and the ring of the stator 140c and 352.
  • the log ⁇ processing element 350 may be generated, for example.
  • a U-ring which corresponds to the U-ring 71 can be attached directly to the rotor 120c and with its sealing lip directly on the stator anlie ⁇ conditions.
  • the opening of the U has, as in the figure 7 to the outside. It may be another gap seal or another more complete non-contact seal for the dynamic case are pre ⁇ see.
  • the sealing element 350 is produced by an adaptation of the sealing chamber of the motor 100b.
  • a sealing element corresponding to the V-ring 331 can be fastened directly to the rotor 120c with its surface facing away from the vertex of the V.
  • a sealing lip corresponding to the sealing lip 336 can then be attached to a disc corresponding to the discharge disc 332 on the stator region 352 in FIG
  • a gap between the disc and the rotor 120c may be formed as a gap seal. Other seals may also be provided for the non-contact case.
  • the space in the interior of the wheel hub motor i. Internal rotor or external rotor can be used advantageously for a parking brake and / or for a brake and / or for ABS
  • Antilock braking system and / or for an inverter or inverter and / or for a cooling system.
  • the rotor can also be executed in egg ⁇ ner other design, eg as Reluktanzmo ⁇ tor, short-circuit rotor or synchronous motor with external excitation, ie with coils on the rotor.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Frames (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

L'invention concerne entre autres un moteur (10a) logé dans un moyeu de roue comprenant : un stator (14a); un rotor (12a); et au moins un élément d'étanchéité (34) placé entre le stator (14a) et le rotor (12a). L'élément d'étanchéité (34) est fixé sur le rotor (12a), et présente une partie saillante (36) qui prend appui sur le stator (14a) lorsque le moteur (10a) est à l'arrêt. La partie saillante (36) est agencée et configurée de telle manière que, lorsque le rotor (12a) tourne, une force centrifuge agit sur la partie saillante (36) et produit un interstice entre la partie saillante (36) et le stator (14a).
PCT/EP2013/074262 2013-01-08 2013-11-20 Moteur logé dans un moyeu de roue et procédé permettant de rendre étanche un moteur logé dans un moyeu de roue Ceased WO2014108231A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13798972.9A EP2923435A2 (fr) 2013-01-08 2013-11-20 Moteur logé dans un moyeu de roue et procédé permettant de rendre étanche un moteur logé dans un moyeu de roue

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013200117.7 2013-01-08
DE102013200117.7A DE102013200117A1 (de) 2013-01-08 2013-01-08 Radnaben-Motor und Verfahren zum Abdichten eines Radnaben-Motors

Publications (2)

Publication Number Publication Date
WO2014108231A2 true WO2014108231A2 (fr) 2014-07-17
WO2014108231A3 WO2014108231A3 (fr) 2015-02-19

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PCT/EP2013/074262 Ceased WO2014108231A2 (fr) 2013-01-08 2013-11-20 Moteur logé dans un moyeu de roue et procédé permettant de rendre étanche un moteur logé dans un moyeu de roue

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Country Link
EP (1) EP2923435A2 (fr)
DE (1) DE102013200117A1 (fr)
WO (1) WO2014108231A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106487145A (zh) * 2016-11-26 2017-03-08 中船重工电机科技股份有限公司 水冷电机盖板防护机构及其装配方法
WO2023029038A1 (fr) * 2021-09-06 2023-03-09 舍弗勒技术股份两合公司 Structure de joint d'étanchéité pour système d'entraînement de moteur électrique dans une roue, et système d'entraînement de moteur électrique dans une roue
US20250385565A1 (en) * 2024-06-17 2025-12-18 Taizhou Huangyan Bochuang Design Co., Ltd. Hollow hub motor

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US20250385565A1 (en) * 2024-06-17 2025-12-18 Taizhou Huangyan Bochuang Design Co., Ltd. Hollow hub motor

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DE102013200117A1 (de) 2014-07-10
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