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
  • H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
  • H02K5/167—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings
  • H02K5/1672—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at both ends of the rotor
• • 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
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
  • F16C27/02—Sliding-contact bearings
• • 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
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
  • F16C27/08—Elastic or yielding bearings or bearing supports, for exclusively rotary movement primarily for axial load, e.g. for vertically-arranged shafts
• • 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
  • H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
• • H—ELECTRICITY
  • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • H02K—DYNAMO-ELECTRIC MACHINES
  • H02K5/00—Casings; Enclosures; Supports
  • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
• • 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
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C2220/00—Shaping
  • F16C2220/02—Shaping by casting
  • F16C2220/04—Shaping by casting by injection-moulding
• • 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
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C2380/00—Electrical apparatus
  • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators

Definitions

• the invention is based on a damping unit with at least one starting element, which is provided for damping at least one armature longitudinal vibration of an electric motor in at least one operating state, and the at least one cavity for damping the at least one armature longitudinal vibration of the electric motor in at least one operating state and at least a first Injection molding element and at least one second injection molding element.
• the at least one cavity is arranged at least substantially in the at least one first injection-molded element or in the at least one second injection-molded element.
• the at least one starting element is preferably at least partially formed as a thrust washer.
• other embodiments of the at least one starting element that appear reasonable to a person skilled in the art would be conceivable.
• the at least one starting element and / or the at least one cavity are / is intended to convert vibrations and / or oscillations into thermal energy in the form of kinetic energy and thus, in particular, transmit vibration between them
• Electric motor and at least one housing of a heating and / or air conditioning blower which includes the electric motor to reduce or dampen in an operating condition.
• the element in a region adjoining the at least one cavity, the element preferably has a modulus of elasticity which is less than 500 N / mm 2 , preferably less than 100 N / mm 2 and particularly preferably less than 50 N / mm 2 .
• the at least one contact element is elastically compressible, in particular in a region adjacent to the at least one cavity, in particular by more than 0.1 mm, preferably by more than 0.5 mm and particularly preferably by more than 1 mm.
• an "armature longitudinal oscillation” is to be understood as meaning, in particular, an oscillating movement of an armature element of the electric motor which has at least one component which is arranged parallel to an axis of rotation of the electric motor
• Anchoring element of the electric motor is preferably rotatably mounted and designed to be capable of rotary drive in an operating state of the electric motor, in particular relative to a stator unit.
• "Provided” is to be understood in particular to be specially designed, designed and / or equipped. The fact that an object is intended for a specific function should in particular mean that the object fulfills and / or executes this specific function in at least one application and / or operating state.
• a "cavity” is to be understood as meaning, in particular, a spatial, in particular immaterial, region of the at least one starting element which is at least almost completely enclosed by the at least one starting element and formed differently from a basic porosity of a material or material mixture of the at least one starting element.
• the at least one cavity has a main extension which is in particular at least twice, preferably at least three times, preferably at least five times and particularly preferably at least ten times as large as an average pore size of the base porosity of a material or material mixture of the at least one start-up element
• Cavity is in particular at least 1 mm, preferably at least 5 mm, preferably at least 1 cm and particularly preferably at least 5 cm.
• an "injection-molded element” is to be understood as meaning, in particular, an element which is at least partially, preferably at least almost completely manufactured and / or molded in an injection molding process.
• the injection-molded element is preferably at least partially, preferably at least almost completely formed from at least one plastic.
• the at least one cavity in particular at least 50%, preferably at least 70%, preferably at least 90% and more preferably at least 98% of the material or material mixture of the at least one starting element, in particular in at least two spatial directions, preferably viewed in three spatial directions, is enclosed.
• an armature longitudinal vibration of the armature element of the electric motor can be damped in an operating state and running noise of the electric motor can be reduced in an advantageously simple manner.
• the at least one cavity is arranged at least partially along a circumferential direction of the starting element.
• “along a circumferential direction” is to be understood in particular as meaning that a main extension of the at least one cavity is arranged at least substantially largely parallel to the circumferential direction of the at least one starting element, thereby achieving an advantageously compact embodiment of the at least one starting element become.
• the at least one cavity is at least partially annular.
• annular is to be understood in particular to mean that the at least one cavity has a cross section in a plane parallel to the main extension of the at least one cavity, which has an annular contour the at least one starting element can be achieved.
• the damping unit comprises at least two starting elements, which are provided for damping at least one armature longitudinal vibration of an electric motor in at least one operating state. This can be up advantageous simple way a preferably effective damping of the armature longitudinal vibration of the electric motor can be achieved in at least one operating condition.
• the at least one first injection-molded element and the at least one second injection-molded element are at least partially firmly connected to one another.
• the term "firmly connected” is to be understood in particular as meaning that the at least one first injection-molded element and the at least one second injection-molded element are in particular captive, preferably insoluble or separable only by destruction a second injection-molded element can be at least partially positively and / or non-positively connected to each other, wherein a holding force between the at least one first injection molding element and the at least one second injection molding element preferably by a geometric engagement of the components into one another and / or a frictional force between the components transmitted
• the at least one first injection-molded element and the at least one second injection-molded element are at least partially connected to one another in a materially bonded manner It can be understood that the at least one first injection-molded element and the at least one second injection-molded element are held together by atomic or molecular forces, for example during soldering, welding,
• the at least one first injection-molded element and the at least one second injection-molded element are formed at least partially in one piece.
• integral is to be understood as being in particular at least materially bonded, for example by a welding process, an adhesion process, an injection process and / or another process that the skilled person considers useful, and / or advantageously shaped in one piece
• the at least one first injection-molded element and the at least one second injection-molded element are at least partially in one, in particular multi-stage, injection molding process
• the at least one starting element comprises at least one ultrasonically processed contact region between the at least one first injection-molded element and the at least one second injection-molded element.
• a "contact region” is to be understood as meaning, in particular, a region in which the at least one first injection-molded element and the at least one second injection-molded element contact directly and in which the at least one first injection-molded element and the at least one second injection-molded element are preferably connected
• "ultrasonically processed” is to be understood in particular as meaning that the contact area is processed at least partially by means of an ultrasonic method, in particular by means of an ultrasonic welding method, in particular to increase adhesion between the at least one first injection-molded element and the at least one second injection-molded element in the contact area is.
• the at least one cavity is at least substantially airtight, at least in an assembled state.
• the term "at least substantially airtight" should in particular be understood to mean that a fluid exchange, in particular an air exchange, between the at least one cavity and an environment of the at least one starting element, in particular less than 0.1 V h , preferably less than 0 , 05 V h , preferably less than 0.01 '/ h, and more preferably less than 0.001' / h .
• a fluid cushion in particular an air cushion within the at least one cavity and thus preferably good damping properties of the at least one starting element can be achieved.
• the at least one first injection-molded element and the at least one second injection-molded element are at least partially formed from a same material.
• the at least one starting element comprises at least one toothed element which is provided at least partially for a form-fitting coupling between the at least one first injection-molded element and the at least one second injection-molded element.
• a "form-fitting coupling” is to be understood in particular as meaning that abutting surfaces of the components connected to one another in a form-fitting manner exert a holding force acting in the normal direction of the surfaces, in particular the at least one first injection-molded element and the at least one second injection-molded element are in geometric engagement
• an advantageously secure and reliable connection between the at least one first injection-molded element and the at least one second injection-molded element can be achieved in an advantageously simple manner
• At least one second injection-molded element is to be understood as being “integral” in this context, in particular being understood to be at least materially bonded, for example se by a welding process, a gluing process, a Anspritzrata and / or another, the expert appears useful
• the at least one toothed element and the at least one first injection-molded element or the at least one second injection-molded element are at least partially manufactured in an injection molding process.
• an advantageously simple embodiment of the at least one starting element can be achieved.
• an electric motor with at least one armature shaft, with at least one anchor element, with at least one commutator, with at least one first bearing element and at least one second bearing element and with the damping unit on the armature shaft at least partially between the at least one first bearing element and the at least one Anchor element and / or at least partially between the at least one commutator and the at least one second Lagerele- element.
• the at least one first bearing element and / or the at least one second bearing element are / is one, in particular rotatable, Storage of the at least one armature shaft and in particular of the at least one anchor element is provided.
• the electric motor is intended to drive a heating and / or air conditioning blower in an operating state.
• other applications of the electric motor that appear sensible to a person skilled in the art, such as, for example, in a handheld power tool, are also conceivable.
• an advantageously quiet and preferably quiet configuration of the electric motor can be achieved.
• the invention is based on a method for producing the damping unit.
• the method comprises at least one method step in which at least one starting element of the damping unit is at least partially formed in an at least two-stage injection molding process.
• a "2-stage injection molding process” is to be understood as meaning, in particular, an injection molding method in which, in a first step, a first part of the at least one starting element and at least one further part of the at least one starting element are molded, in particular injected, in at least one further step.
• the method comprises at least one further method step, in which the at least one starting element is treated at least partially by means of an ultrasonic welding process.
• an "ultrasonic welding method” is intended in particular to include a method for increasing adhesion between the at least one first injection-molded element and the at least one second injection-molded element, in particular in the contact region, by means of sound having a frequency which is above a hearing frequency range of the human and preferably between 16 kHz and 1 GHz, whereby a preferably secure and reliable connection between the at least one first injection-molded element and the at least one second injection-molded element can be achieved in an advantageously simple manner.
• the method comprises at least one further method step in which at least one cavity, which is arranged in at least one first injection-molded element or in at least one second injection-molded element of the at least one starting element, is at least substantially closed.
• at least substantially closed should in this context be understood in particular that the at least one cavity to at least 50%, preferably at least 70%, preferably at least 90% and more preferably at least 98% of the material or material mixture of at least a start-up element, in particular in at least two spatial directions, preferably viewed in three spatial directions, is enclosed thereby a fluid cushion, in particular an air cushion within the at least one cavity and thus preferably good damping properties of the at least one starting element can be achieved.
• the damping unit should not be limited to the application and embodiment described above.
• the damping unit may have a number different from a number of individual elements, components and units mentioned herein.
• FIG. 1 shows a rotor unit of an electric motor with a damping unit in a schematic side view
• Fig. 2 shows a detail of a starting element of the damping unit in a
• 3a shows the starting element of the damping unit in a perspective plan view
• Fig. 6 shows a detail of the starting element of the damping unit with the first
• Fig. 1 1 is a schematic flow diagram of a method for producing the
• FIG. 1 shows a rotor unit 46a of an electric drive device formed by an electric motor.
• the electric motor is intended to drive an electric heating and / or air conditioning blower.
• the electric motor is designed as a DC motor. However, it is also conceivable that the electric motor is designed as a BLDC motor or in another way that appears appropriate to a person skilled in the art.
• the electric motor has an armature element 30a, a commutator 32a, a first bearing element 34a, a second bearing element 36a and a damping unit 10a.
• the rotor unit 46a of the electric motor includes the anchor member 30a.
• the anchor member 30a is formed of iron.
• the anchor member 30a is formed of stacked iron sheets.
• the anchor element 30a has not shown grooves, in which at least one winding 48a extends.
• the anchor element 30a has a plurality of windings 48a.
• the windings 48a are connected to the schematically illustrated commutator 32a.
• the windings 48a extend over a winding head the anchor element 30a.
• the anchor element 30a has two winding heads, which are arranged opposite one another in a main extension direction 52 of the anchor element 30a.
• the main extension direction 52 of the anchor element 30a runs parallel to the armature shaft 28a of the rotor unit 46a.
• the windings 48a are arranged crossing each other.
• the windings 48a are designed to be flowed through in an operating state with an electric current, whereby a magnetic field is induced.
• the induced magnetic field interacts in an operating state with a magnetic field of a stator unit, not shown, of the electric motor.
• Rotor unit 46a an output gear, not shown, for transmitting a driven movement of the rotor unit 46a of the electric motor to a drive spindle of the heating and / or air conditioning blower.
• the electric motor comprises the first bearing element 34a and the second bearing element 36a, which rotatably support the rotor unit 46a about a rotation axis of the armature shaft 28a.
• the first bearing element 34a and the second bearing element 36a viewed in the main extension direction 52a of the rotor unit 46a of the electric motor, are arranged on opposite sides of the anchor element 30a.
• the first bearing element 34a and the second bearing element 36a close the anchor element 30a, in FIG.
• Main extension direction 52a of the rotor unit 46a of the electric motor considered a.
• the first bearing element 34a and the second bearing element 36a contact the armature shaft 28a directly.
• the first bearing element 34a viewed in the main extension direction 52a of the rotor unit 46a of the electric motor, is arranged on a side of the rotor unit 46a of the electric motor facing away from the commutator 32a.
• the second bearing element 34a viewed in the main extension direction 52a of the rotor unit 46a of the electric motor, is arranged on a side of the rotor unit 46a of the electric motor facing away from the commutator 32a.
• Bearing element 36a is, viewed in the main extension direction 52a of the rotor unit 46a of the electric motor, arranged on a commutator 32a facing side of the rotor unit 46a of the electric motor.
• the first bearing element 34a and the second bearing element 36a are designed as sliding bearings.
• the first bearing element 34a and the second bearing element 36a are formed by calotte bearings.
• other embodiments of the first bearing element 34a and / or of the second bearing element 36a which appear appropriate to a person skilled in the art are also conceivable.
• the armature member 30a of the rotor unit 46a is rotatably supported relative to the first bearing member 34a and the second bearing member 36a.
• the armature element 30a of the rotor unit 46 has, viewed in the main extension direction 52a of the rotor unit 46a of the electric motor, relative to the first bearing element 34a and the second bearing element 36a a long game on.
• the longitudinal clearance is between 0.1 mm and 0.4 mm. In an operating state of the electric motor, an armature longitudinal oscillation and thus a high operating noise level of the electric motor can arise due to the longitudinal play of the armature element 30a.
• the damping unit 10a For damping the armature longitudinal vibration of the armature element 30a in an operating state of the electric motor, the damping unit 10a is provided.
• the damping unit 10a is arranged on the armature shaft 28a at least partially between the at least one first bearing element 34a and the at least one anchor element 30a and / or at least partially between the at least one commutator 32a and the at least one second bearing element 36a.
• the damping unit 10a has at least one starting element 12a.
• the damping unit 10a has at least two starting elements 12a.
• the damping unit 10a comprises a first starting element 12a and a second starting element 12a.
• the first starting element 12a and the second starting element 12a are each formed as thrust washer 56a.
• the starting elements 12a are disc-shaped.
• the thrust elements 12a are formed at least partially disc segment-shaped.
• the first starting element 12a viewed in the main extension direction 52a of the rotor unit 46a of the electric motor, is arranged between the first bearing element 34a and the anchor element 30a.
• the second starting element 12a viewed in the main extension direction 52a of the rotor unit 46a of the electric motor, is arranged between the commutator 32a and the second bearing element 36a.
• the starting elements 12a are formed from a plastic. However, other embodiments of the starting elements 12a that appear appropriate to a person skilled in the art, such as, in particular, at least one additional or alternative material, are also conceivable.
• the damping unit 10a is disposed within a housing of the electric motor. However, it is also conceivable that the damping unit is at least partially disposed outside of the housing of the electric motor.
• the first starting element 12a and the second starting element 12a are formed at least substantially identically.
• the first starting element 12a and the second starting element 12a are identical.
• the first starting element 12a has at least one cavity 14a for damping the at least one armature longitudinal oscillation of the electric motor in at least one operating state.
• the second starting element 12a has at least one cavity 14a for damping the at least one armature longitudinal oscillation of the electric motor in at least one operating state.
• the starting elements 12a each have a cavity 14a for damping the at least one armature longitudinal oscillation of the electric motor in at least one operating state.
• the cavity 14a forms in a mounted state in each case a fluid cushion, which is provided for damping the armature longitudinal vibration of the electric motor in an operating state.
• the cavity 14a forms in each case an air cushion in an assembled state.
• the cavity 14a forms a damping region of the respective starting element 12a.
• the cavity 14a is in each case arranged at least partially along a circumferential direction 20a of the contact elements 12a.
• the cavity 14a is circumferentially arranged along the circumferential direction 20a of the abutment elements 12a.
• the cavity 14a is in each case annular.
• the cavity 14a respectively has, in a plane perpendicular to a tangential direction of the abutment member 12a, two cross-sectional areas each having a triangular area, a rectangular area, and a semicircular area.
• the semicircular area, the rectangular area and the triangular area are arranged one after the other in the radial direction 58a of the abutment element 12a, viewed from inside to outside.
• the first injection-molded element 16a has, viewed in the radial direction 58a, in a region of the cavity 14a a region which, in an operating state, serves as a bending beam and can be elastically deformed towards the cavity.
• Axial forces which act in an operating state by the armature longitudinal vibration of the first bearing element or the second bearing element on the starting element, generate the elastic deformation of the first injection molding element 16a in the region of the cavity 14a and are thereby damped.
• a stop element 50a is provided within the cavity 14a, which is intended to limit a deformation of the starting element 12a in the region of the cavity 14a in an operating state.
• the stop element 50a is shown in dashed lines in FIG.
• the stop element 50a is formed from a plastic.
• the stopper member 50a may be circumferentially formed along the cavity 14a.
• several, for example three, stop elements 50a are provided, which, viewed in the circumferential direction 20a, are distributed uniformly along the cavity 14a.
• the stop element 50a is firmly connected to the first injection-molded element 16a of the starting element 12a.
• the stopper member 50a is integral with the first injection molding member
• stop element 50a it is also conceivable for the stop element 50a to be adhesively bonded to the first injection-molded element 16a of the starting element 12a or to be connected to the first injection-molded element 16a of the stop element 12a in another manner that appears appropriate to a person skilled in the art.
• the first starting element 12a and the second starting element 12a of the damping unit 10a each have a first injection-molded element 16a and a second injection-molded element 18a (FIGS. 3a and 3b).
• the first injection molding member 16a and the second injection molding member 18a are successively formed in a 2-stage injection molding process.
• the first injection-molded element 16a and the second injection-molded element 18a are at least partially firmly connected to one another.
• the first injection-molded element 16a and the second injection-molded element 18a are each firmly connected to one another.
• the first injection-molded element 16a and the second injection-molded element 18a are formed at least partially in one piece.
• the first injection-molded element 16a and the second injection-molded element 18a are each formed in one piece.
• the first injection molding element 16a is formed in a first step 60 of the injection molding process. Subsequently, the second injection molding element 18a is formed in a second step 62 of the injection molding process and injection molded onto the first injection molding element 16a. However, it is also conceivable that the second injection-molded element 18a is formed separately in the second step 62 of the injection molding process and subsequently connected to the first injection-molded element 16a.
• the first starting element 12a and the second starting element 12a each have an ultrasonically processed contact region 22a, 24a between the first injection-molded element 16a and the second injection-molded element 18a (FIG. 7).
• the first injection-molded element 16a has the contact region 22a.
• the second injection-molded element 18a has the contact region 24a.
• the first starting element 12a and the second starting element 12a each have a high adhesion between the first injection-molded element 16a and the second injection-molded element 18a, so that a release of the integral connection between the first injection-molded element 16a and the second injection-molded element 18a of the starting element 12a can be prevented in an operating state of the damping unit 10a.
• the first injection molding member 16a and the second injection molding member 18a are at least partially formed of a same material.
• the first injection molding member 16a and the second injection molding member 18a are each formed entirely of the same material.
• the first injection molding member 16a and the second injection molding member 18a are formed of a plastic.
• the cavity 14a of the first starting element 12a and the cavity 14a of the second starting element 12a are each arranged at least essentially in the first injection-molding element 16a or in the second injection-molding element 18a (FIG. 4).
• the cavity 14a of the first startup element 12a is disposed in the first injection molded element 16a and is completely enclosed by the first injection molded element 16a.
• Run-up element 12a is arranged in the first injection-molded element 16a and is completely enclosed by the first injection-molded element 16a.
• the cavity 14a is arranged in the second injection-molded element 18a and is enclosed by the second injection-molded element 18a.
• the cavity 14a of the first starting element 12a and the cavity 14a of the second starting element 12a are each at least substantially airtight.
• the cavity 14a of the first stop element 12a and the cavity 14a of the second stop element 12a are each airtight in an assembled state.
• a flow chart of a method for producing the damping unit 10a is shown schematically in FIG.
• the first starting element 12a and the second starting element 12a are at least partially formed in a method step 38, 40 of the method for producing the damping unit 10a in the 2-stage injection molding process.
• the first starting element 12a and the second starting element 12a are at least almost completely formed in the method step 38, 40 of the method for producing the damping unit 10a in the 2-stage injection molding process.
• the cavity 14a which is inserted into the first injection molding element 16a, is open.
• the first injection molding member 16a has a tab portion 64a provided to directly contact a contact portion 22a of the first injection molding member 16a in an assembled state and thereby to close the hollow space 14a.
• the tab portion 64a of the first injection molding member 16a is spaced from the contact portion 22a of the first injection molding member 16a.
• the cavity 14a which is in the first injection-molded element 16a or in the second injection-molded element 18a of the first starting element
• the cavity 14a which is introduced into the first injection-molded element 16a, is closed.
• the cavity 14a is closed in the further process step 44 by pressing the tab region 64a onto the contact region 22a of the first injection molding element 16a.
• the second step 62 of the injection molding process which corresponds to method step 40 of the method, the second injection-molded element 18a is injection-molded onto the first injection-molded element 16a.
• the first starting element 12a and the second starting element 12a are each treated at least partially by means of an ultrasonic welding method.
• step 42a of the method for producing the damping unit 10a the first starting element 12a and the second starting element 12a are each treated in the contact region 22a, 24a between the first injection-molding element 16a and the second injection-molding element 18a by means of an ultrasonic welding process.
• the first starting element 12a and the second starting element 12a are each treated in the contact region 22a, 24a between the first injection-molding element 16a and the second injection-molding element 18a by means of an ultrasonic welding process.
• FIGS. 8 to 10 show a further exemplary embodiment of the invention.
• the following descriptions and the drawings are essentially limited to the differences between the exemplary embodiments, wherein with respect to the same named components, in particular with respect to components with the same reference numerals, in principle to the drawings and / or the description of the other embodiments, in particular Figures 1 to 7, can be referenced.
• To distinguish the embodiments of the letter a is the reference numerals of the embodiment in Figures 1 to 7 adjusted.
• the letter a is replaced by the letter b.
• FIGS. 8 to 10 show a starting element 12b of an alternatively configured damping unit 10b.
• the starting element 12b largely corresponds to the starting element 12a already described.
• the alternatively configured damping unit 10b has two starting elements 12b.
• the thrust elements 12b are formed at least substantially identical.
• the starting elements 12b are identical.
• the alternatively configured damping unit 10b is produced in the method already described.
• the run-up element 12b comprises a first injection-molded element 16b and a second injection-molded element 18b.
• the first injection molding member 16b and the second injection molding member 18b are successively formed in a 2-stage injection molding process.
• the first injection-molded element 16b and the second injection-molded element 18b are at least partially firmly connected to each other.
• the first injection-molded element 16b and the second injection-molded element 18b are each firmly connected to each other.
• the first injection-molded element 16b and the second injection-molded element 18b are formed at least partially in one piece.
• the first injection-molded element 16b and the second injection-molded element 18b are each formed in one piece.
• Injection molding element 16b is attached to the second injection molding element 18b in the injection molding spraying process.
• the first injection-molded element 16b and the second injection-molded element 18b are connected to one another in a material-locking manner.
• the thrust element 12b comprises at least one toothed element 26b, which is provided at least partially for a form-fitting coupling between the at least one first injection-molded element 16b and the at least one second injection-molded element 18b.
• the starting element 12b comprises at least two toothed elements 26b.
• the thrust element 12b comprises a plurality of toothed elements 26b, which are provided for an additional positive connection between the first injection-molded element 16b and the second injection-molded element 18b.
• the toothed elements 26b are distributed uniformly in the circumferential direction 20b of the thrust element 12b.
• the starting element 12b has eight tooth elements 26b distributed uniformly in the circumferential direction 20b.
• At least one of the toothed elements 26b is formed at least partially in one piece with the first injection-molded element 16b or with the second injection-molded element 18b.
• the toothed elements 26b are integrally formed with the second injection-molded element 18b.
• the toothed elements 26b each have a trapezoidal contour that extends inward in the radial direction 58b from an inner edge of the second injection-molded element 12b viewed in the radial direction 58b of the stop element 12b.
• other embodiments of the toothed elements which appear expedient to a person skilled in the art, such as, in particular, a semicircular, triangular, elliptical and / or rectangular contour, are also conceivable.
• the toothed elements 26b of the second injection-molded element are injection-molded onto the first injection-molded element 16b in a plane parallel to a circumferential direction 20b of the stop element 12b and fix the first injection-molded element 16b in a material-locking manner.
• the toothed elements 26b of the second injection-molded element engage over the first injection-molded element 16b in a plane parallel to a circumferential direction 20b of the stop element 12b and fix the first injection-molded element 16b in a form-fitting manner.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Mechanical Engineering (AREA)
• Injection Moulding Of Plastics Or The Like (AREA)
• Motor Or Generator Frames (AREA)

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• 2014
  • 2014-02-19 DE DE102014102134.7A patent/DE102014102134A1/de not_active Withdrawn
  • 2014-12-18 KR KR1020167025529A patent/KR20160138010A/ko not_active Ceased
  • 2014-12-18 US US15/119,159 patent/US20170018990A1/en not_active Abandoned
  • 2014-12-18 CN CN201480075806.5A patent/CN106030999B/zh active Active
  • 2014-12-18 EP EP14818974.9A patent/EP3108573B1/de active Active
  • 2014-12-18 WO PCT/EP2014/078535 patent/WO2015124238A1/de not_active Ceased
  • 2014-12-18 BR BR112016018677-0A patent/BR112016018677B1/pt active IP Right Grant
  • 2014-12-18 JP JP2016548347A patent/JP2017517233A/ja not_active Ceased

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