EP3516668A1 - Electromechanical composite component and method for producing same - Google Patents
Electromechanical composite component and method for producing sameInfo
- Publication number
- EP3516668A1 EP3516668A1 EP17764793.0A EP17764793A EP3516668A1 EP 3516668 A1 EP3516668 A1 EP 3516668A1 EP 17764793 A EP17764793 A EP 17764793A EP 3516668 A1 EP3516668 A1 EP 3516668A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sleeve
- composite component
- component according
- cover
- pressed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/0266—Moulding; Pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0205—Magnetic circuits with PM in general
- H01F7/0221—Mounting means for PM, supporting, coating, encapsulating PM
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/2726—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of a single magnet or two or more axially juxtaposed single magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
Definitions
- the invention relates to an electromechanical composite component with a sleeve and a therein arranged, pressed from powdered material with magnetic particles magnet assembly and at least one, the sleeve frontally tightly sealing lid and a method for producing such a composite component.
- An electromechanical composite component of this type in the form of a rotor for an electric motor, is specified in DE 20 2008 017 587 U1.
- a sintered permanent magnet is introduced into an encapsulation, which has a cylindrical envelope section in the form of a sleeve and sealing parts attached thereto at the ends.
- the permanent magnet is mounted on a shaft, which is guided sealed by shaft passages of the end parts. All transitions between the Hüllabsacrificing and the end parts are tightly sealed, for example, welded, soldered or pressed and / or with a sealant, for. B. paste or adhesive provided. - -
- WO 2013/110755 A1 shows a method for lining the inner surface of a hollow body in the form of a sleeve with a magnetic molded body pressed from pulverulent material provided with a binder and a correspondingly produced functional part.
- a special feature of this method is that the pressed molded body without further aids and process steps such as gluing or thermal setting in the tubular hollow body by its relaxation after the pressing process and insertion is fixed non-positively in the hollow body.
- Further composite components, in particular rotors, with a permanent magnet arranged in a cylindrical encapsulation are described in DE 196 17 134 A1, EP 0 243 187 A2, US Pat. No.
- the present invention has for its object to provide an electromechanical composite component, such as a rotor for an electric machine, which allows by its structure with as little effort varied design variants, with a reliable operation is achieved.
- the magnet arrangement is fixed non-positively in the sleeve by a molded body pressed from the magnetic material is used with sliding friction in the sleeve and causes by its relaxation a press connection in the sleeve.
- the composite component produced in this way forms a compact structural unit with a permanent magnet or a magnet arrangement inserted in a force-fitting manner (without adhesive or thermal fixing processes) and fixed in the sleeve.
- Extensive examinations and tests by the inventors have shown that the composite component permanently fulfills high functional requirements even under adverse conditions of use. Due to the tight seal with the end caps, the permanent magnet is housed protected even in an aggressive atmosphere such as liquid or gas.
- the method of production by insertion and frictional fixing of the magnet arrangement without gluing and thermal fixing also enables a thin-walled magnet geometry as well as very thin sleeve wall thicknesses of preferably less than 0.5 mm and even less than 0.2 mm.
- different magnetic materials and z. B. isotropic or anisotropic NdFeB magnetic materials can be used for the preparation.
- Metallic or ceramic materials may be considered for the optionally used axle.
- the said structure advantageously allows a precisely controllable or controllable production and results from the immediate insertion of the molding in the sleeve a precisely tailored to the desired properties of the finished composite component manufacturing method while maintaining very low tolerances, since no additional adhesive layer is introduced for manufacturing as in conventional Einklebetechniken or no additional steps must be performed, such as heating a shaped body and inserting the warmed molding.
- An embodiment which is advantageous for precise production and function consists in that the wall thickness of the sleeve is at most 0.5 mm, in particular at most 0.2 mm.
- a further advantageous embodiment for certain applications is that concentrically through the sleeve (2) and the magnet arrangement an axis (5) is guided, which runs through the at least one cover (6).
- the measures contribute that the at least one cover (6) liquid-tight at the associated end face of the sleeve (2) and the possibly existing axis (5) and by crimping on the Sleeve (2) is fixed.
- the at least one cover (6) liquid-tight at the associated end face of the sleeve (2) and optionally the axis (5) is welded, in particular by La- laser welding, and further in that the at least one cover (6) is fixed by molding or extrusion coating on the sleeve (2) and optionally the axle (5).
- the sleeve (2) made of metal or plastic, in particular glass fiber reinforced plastic or a carbon-reinforced plastic. - -
- the axis is made of metal or ceramic.
- the magnet arrangement has a cylindrical magnet body (3) with a full-surface or annular cross-section.
- FIG. 1A shows a first exemplary embodiment of an electromechanical composite component, such as for a rotor of an electrical machine, with a magnet arrangement inserted in a sleeve in the form of a thin-walled permanent magnet in a perspective view, open on one side,
- FIG. 1 B shows a further exemplary embodiment of a composite component with a magnet arrangement inserted in a thin-walled sleeve and a central axis in a perspective view
- Fig. 2A shows another embodiment of a composite component in a
- Fig. 2B shows a further embodiment of a composite component in a
- Fig. 3 shows a composite component in disassembled state.
- FIG. 1A shows a composite component 1 with a cylindrical sleeve 2, into which a magnetic body 3 of a magnet arrangement is inserted and which on its one (in the figure rear) front side with a lid, here in the form of a bottom 7, completed and on its other (in this case front) front side is open.
- the bottom 7 has a central, concentric to the sleeve 2 through opening for an axle 5 and shaft, as they are for. B. is used for the construction of a rotor of an electric machine.
- the bottom 7 can be integrally formed on the sleeve 2 or placed as a separate component in the form of a cover 6 (see also Fig. 3) and be tightly connected to the respective end edge of the sleeve 2.
- the front end side is provided with a cover 6 which is tightly attached to the associated end edge of the sleeve 2. If an axle 5 is used, there is also a tight connection between the bottom 7 or cover 6 and the axle 5, so that z. B. when used in a liquid it does not penetrate into the interior of the sleeve 2 and damage the magnetic body 3.
- the magnetic body 3 is inserted into the sleeve 2 by joining in accordance with the method explained in more detail in the aforementioned publication WO 2013/110755 A1 and consists of a pressed molded body of powdered material with magnetic particles distributed therein, the molded body pressed into a female mold with exact adjustment with sliding friction inserted into the sleeve and after positioning in the interior of the sleeve 2 on the inner surface of the same through - -
- the pressed molded body may have an annular or full-surface, in particular circular cross-section and is adapted in its outer periphery to the inner circumference of the sleeve 2. If the cross-section of the shaped body is annular, a filler body or inner body 4 can be fitted into its interior space (cf. also FIG. 3).
- the pressed molded body is z. B. axially compressed by a factor of 2 to 3 compared to its loose filling state in the die, wherein the factor or the pressing pressure can be selected depending on the material composition and also outside this range. Due to the compactness of the molded body in the sleeve 2 after removal of the or of the pressing tools ("breathing") and then fixed with high holding force directly to the inner surface of the sleeve 2. In addition, on the inner surface of the sleeve 2 gripping structures for locking or Be provided hooking.
- the composite component 1 thus formed by joining the shaped body made of the magnetic material into the sleeve 2 is tightly closed by means of the mutual end-side cover 6 or a cover 6 and the bottom 7, as the exemplary embodiments according to FIGS. 2A and 2B show.
- the cover or covers 6 can be molded tightly against the sleeve 2 provided with the magnetic body 3 or the magnet arrangement or can be welded circumferentially to the respective end edges of the sleeve 2.
- an advantageous method of connection provides a flanging between the edge region of the lid 6 and the end-side edge regions of the sleeve 2.
- edge regions extending axially next to one another are provided.
- an inner body 4 can already be inserted into the magnet body 3, as far as it has an annular cross-section, during the production of the pressed molding in the die or later after insertion of the molding into the sleeve 2.
- the inner body 4 can be placed separately on the axis 5 and fixed thereto or integrally formed therewith, as well as from Fig. 3 can be seen.
- the shaft 5 or shaft can be used correspondingly already in the production of the pressed molding in the die or later after insertion of the molding in the sleeve 2.
- the wall of the sleeve 2 is preferably made of non-magnetic or non-magnetizable material, wherein a metallic or non-metallic material, such as. As GFK or CFK can be used. Due to the thin-walled design of the sleeve 2, a certain elasticity of the wall can be used in the joining process, in particular when relaxing the molding under expansion ("breathing"), which then by an inwardly directed effect of elastic forces the non-positive connection and the compact structure of the Composite component supported.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202016105237.8U DE202016105237U1 (en) | 2016-09-20 | 2016-09-20 | Electromechanical composite component |
PCT/EP2017/072192 WO2018054679A1 (en) | 2016-09-20 | 2017-09-05 | Electromechanical composite component and method for producing same |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3516668A1 true EP3516668A1 (en) | 2019-07-31 |
Family
ID=57209043
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17764793.0A Withdrawn EP3516668A1 (en) | 2016-09-20 | 2017-09-05 | Electromechanical composite component and method for producing same |
Country Status (4)
Country | Link |
---|---|
US (1) | US20190244751A1 (en) |
EP (1) | EP3516668A1 (en) |
DE (1) | DE202016105237U1 (en) |
WO (1) | WO2018054679A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017105138A1 (en) | 2017-03-10 | 2018-09-13 | MS-Schramberg Holding GmbH | Electromechanical component |
FR3078208B1 (en) * | 2018-02-16 | 2023-01-06 | Leroy Somer Moteurs | ROTOR OF ELECTRIC ROTATING MACHINE |
CN111313583A (en) * | 2019-12-24 | 2020-06-19 | 天津深之蓝海洋设备科技有限公司 | Permanent magnet rotor structure of underwater motor, underwater motor and underwater equipment |
DE102022122195A1 (en) | 2022-09-01 | 2024-03-07 | MS-Schramberg Holding GmbH | Magnetic component comprising a multi-component body, in particular produced by injection molding, and method for producing such a magnetic component |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49117918A (en) | 1973-03-19 | 1974-11-11 | ||
JPS62254649A (en) | 1986-04-25 | 1987-11-06 | Isuzu Motors Ltd | Generator for turbocharger |
DE19617134A1 (en) | 1996-04-29 | 1997-10-30 | Siemens Ag | Brushless electric motor control magnet |
GB0130152D0 (en) * | 2001-12-18 | 2002-02-06 | Johnson Electric Sa | Electric motor |
DE10314394B4 (en) | 2003-03-28 | 2007-02-01 | Siemens Ag | Rotor for a brushless DC motor and method for mounting such a rotor |
RU2308139C2 (en) | 2005-08-05 | 2007-10-10 | Общество с ограниченной ответственностью научно-производственная фирма "Особые сварочные агрегаты" (ООО НПФ "ОСА") | Rotor for a magneto-electric machine, primarily for a synchronous generator with excitation by constant magnets |
DE202008017587U1 (en) | 2008-10-31 | 2010-02-25 | Ms-Schramberg Holding Gmbh & Co. Kg | rotor |
KR101390027B1 (en) | 2010-04-05 | 2014-04-29 | 아이치 세이코우 가부시키가이샤 | Case-body bonded magnet, and method for producing same |
GB201014073D0 (en) * | 2010-08-24 | 2010-10-06 | Dyson Technology Ltd | Rotor core assembly |
GB2485149B (en) * | 2010-11-02 | 2014-11-05 | Dyson Technology Ltd | Method of manufacturing a magnet assembly |
DE102012100693A1 (en) | 2012-01-27 | 2013-08-01 | Ms-Schramberg Holding Gmbh & Co. Kg | Process for lining a hollow body with a molded body pressed from powdered material |
-
2016
- 2016-09-20 DE DE202016105237.8U patent/DE202016105237U1/en active Active
-
2017
- 2017-09-05 WO PCT/EP2017/072192 patent/WO2018054679A1/en unknown
- 2017-09-05 EP EP17764793.0A patent/EP3516668A1/en not_active Withdrawn
- 2017-09-05 US US16/318,641 patent/US20190244751A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20190244751A1 (en) | 2019-08-08 |
WO2018054679A1 (en) | 2018-03-29 |
DE202016105237U1 (en) | 2016-10-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2018054679A1 (en) | Electromechanical composite component and method for producing same | |
DE2433770A1 (en) | ELECTRIC MACHINE | |
DE102009006017A1 (en) | magnetic wheel | |
DE102010061778A1 (en) | Spokes rotor for e.g. electric machine, has body fixed at shaft with sleeve, where shaft and/or sleeve is made of diamagnetic material and/or paramagnetic material with permeability number smaller than twelve | |
DE102011089260A1 (en) | Method for producing a component by metal powder injection molding | |
DE102010028989A1 (en) | Method for producing an electric motor | |
DE102017203833A1 (en) | liquid pump | |
EP3469325A1 (en) | Magnet unit for a sensor device of a motor vehicle, sensor device having a magnet unit, and motor vehicle having a sensor device | |
DE102015013472A1 (en) | Electrical contact unit for producing an electrical connection between a battery terminal and a vehicle electrical system of a vehicle | |
DE102010011486A1 (en) | Rotor for a charging device | |
EP3053253B1 (en) | Electric motor | |
DE102009054191B4 (en) | Device and method for fastening magnets on a rotor | |
EP2807723B1 (en) | Method for coating a hollow body with compacted moulding | |
DE102009005956A1 (en) | magnetic ring | |
EP3606396B1 (en) | Electromagnetic actuator for a surgical instrument and method for producing same | |
DE202008017587U1 (en) | rotor | |
DE102015213020A1 (en) | electric motor | |
DE102013217857A1 (en) | Stator for an electric machine and method for manufacturing such a stator | |
DE102009033111A1 (en) | containment shell | |
EP3646439A1 (en) | Rotor for an electrical machine | |
DE102018214443B4 (en) | Method for encapsulating a stator assembly and a stator assembly | |
DE102015213678A1 (en) | Sintered iron core of an axial flow machine | |
DE102017105138A1 (en) | Electromechanical component | |
DE102018124222A1 (en) | Electromotive pump actuator and method for its production and coupling comprising such an electromotive pump actuator | |
DE102013215048A1 (en) | Rotor for an electric motor and method of manufacturing the rotor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20190423 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20210712 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20220125 |