DE4331625A1 - Electrical machine for converting electrical and mechanical energy, in particular an electrical motor to which radial force is applied in order to drive pumps - Google Patents
Electrical machine for converting electrical and mechanical energy, in particular an electrical motor to which radial force is applied in order to drive pumpsInfo
- Publication number
- DE4331625A1 DE4331625A1 DE4331625A DE4331625A DE4331625A1 DE 4331625 A1 DE4331625 A1 DE 4331625A1 DE 4331625 A DE4331625 A DE 4331625A DE 4331625 A DE4331625 A DE 4331625A DE 4331625 A1 DE4331625 A1 DE 4331625A1
- Authority
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- Germany
- Prior art keywords
- support housing
- bearing
- electrical
- machine according
- electrical machine
- 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.)
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- 239000004033 plastic Substances 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000005684 electric field Effects 0.000 claims 1
- 108090000623 proteins and genes Proteins 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 238000011990 functional testing Methods 0.000 abstract description 3
- 238000005538 encapsulation Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/22—Arrangements for enabling ready assembly or disassembly
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/36—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition including a pilot valve responding to an electromagnetic force
- B60T8/3615—Electromagnetic valves specially adapted for anti-lock brake and traction control systems
- B60T8/3675—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units
- B60T8/368—Electromagnetic valves specially adapted for anti-lock brake and traction control systems integrated in modulator units combined with other mechanical components, e.g. pump units, master cylinders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
- B60T8/40—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition comprising an additional fluid circuit including fluid pressurising means for modifying the pressure of the braking fluid, e.g. including wheel driven pumps for detecting a speed condition, or pumps which are controlled by means independent of the braking system
- B60T8/4018—Pump units characterised by their drive mechanisms
- B60T8/4022—Pump units driven by an individual electric motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
- F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
- F04B1/0404—Details or component parts
- F04B1/0413—Cams
- F04B1/0417—Cams consisting of two or more cylindrical elements, e.g. rollers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
-
- 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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- 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
- H02K7/083—Structural association with bearings 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
- 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
-
- 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
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
Die Erfindung betrifft eine elektrische Maschine zur Wand lung von elektrischer und mechanischer Energie, insbesonde re radialkraftbeaufschlagter Elektromotor zum Antrieb von Pumpen nach dem Oberbegriff des Anspruchs 1.The invention relates to an electrical machine for the wall development of electrical and mechanical energy, in particular right radial electric motor to drive Pumps according to the preamble of claim 1.
Elektrische Maschinen zur Wandlung von elektrischer und me chanischer Energie, beispielsweise Elektromotoren finden im allgemeinen Maschinenbau ein vielfältiges Anwendungsspek trum. Im besonderen kommt dem Betrieb derartige Antriebs aggregate im Fahrzeugbereich eine besondere Stellung zu, wobei zum Einsatz in Kraftfahrzeugen auf der Basis techni scher und wirtschaftlicher Überlegungen extreme Anforderun gen an die jeweilige Maschine bezüglich Leistungsdichte, Zuverlässigkeit, Preiswürdigkeit, Servicefreundlichkeit und Geräuscharmut gestellt werden.Electrical machines for converting electrical and me chanic energy, for example electric motors can be found in the general mechanical engineering a diverse application spec dream. In particular, such drives come to the operation units in the vehicle sector have a special position, whereby for use in motor vehicles based on techni extreme economic and economic considerations to the respective machine with regard to power density, Reliability, value for money, ease of service and Be silent.
Aus der DE 41 32 609 A1 ist bereits ein Elektromotor zum Antrieb einer Radialkolbenpumpe hervorgegangen, dessen Wel le innerhalb eines zweiteilig ausgeführten Ständergehäuses gelagert ist. Die Lagerung der Welle ist als Einpunktlager ausgeführt, weshalb zur Aufnahme der Lagerkräfte die Lager breite erheblich größer gewählt ist als der Nenndurchmesser der Welle. Die elektrischen Anschlußkomponenten des Elek tromotors werden über eine Öffnung im topfförmigen Gehäuse des Ständers nach außen geführt.From DE 41 32 609 A1 an electric motor is already known Drive a radial piston pump emerged, its wel le within a two-part stator housing is stored. The shaft is supported as a single point bearing executed, which is why the bearing to absorb the bearing forces width is chosen to be considerably larger than the nominal diameter the wave. The electrical connection components of the Elek tromotors are via an opening in the pot-shaped housing of the stand led outwards.
Durch die relativ große Lagerbreite verlängert sich der Ge häusebund des zweiteiligen Ständergehäuses erheblich. Hier durch läßt sich die Baulänge und das Gewicht nicht weiter reduzieren. Ein weiterer Nachteil ergibt sich durch die ex terne Verlegung der elektrischen Anschlüsse, die eine sorg fältige Abdichtung und Befestigung erfordern.Due to the relatively large warehouse width, the Ge is extended bundle of the two-part stator housing considerably. Here by the length and weight can not be further to reduce. Another disadvantage arises from the ex Internal laying of the electrical connections, which ensures need to be sealed and fastened.
Daher ist es die Aufgabe der Erfindung, eine elektrische Maschine der im Oberbegriff genannten Gattung dahingehend zu verbessern, daß unter Verwendung einfacher Mittel eine uneingeschränkt betriebssichere, klein- und kurzbauende so wie geräuscharme Maschine verwirklicht werden kann und die unabhängig vom Antriebs- bzw. Abtriebsaggregat einer Funktionsprüfung unterzogen werden kann.Therefore, the object of the invention is an electrical Machine of the kind mentioned in the preamble to improve that using simple means a Unreservedly reliable, small and short construction how low-noise machine can be realized and the regardless of the drive or output unit Functional test can be subjected.
Diese Aufgabe wird erfindungsgemäß durch die den Patentan spruch 1 kennzeichnenden Merkmale gelöst, wonach zwischen der Lagerung der Antriebs- oder Abtriebsseite der Welle und dem Aufnahmekörper ein Stützgehäuse vorgesehen ist, das ein auf der Welle verschiebbares erstes Lager in einem Sackloch des Stützgehäuses fixiert, sowie ein auf der Welle gegen über dem ersten Lager beabstandetes zweites Lager aufnimmt, wodurch der Kraftfluß zwischen der Wellenlagerung im Stütz gehäuse und dem Ständer geschlossen ist.This object is achieved by the patent pronounced 1 characteristic features, according to which between the bearing of the input or output side of the shaft and a support housing is provided for the receiving body first bearing slidable on the shaft in a blind hole of the support housing, and one against the shaft accommodates a second bearing spaced apart from the first bearing, whereby the force flow between the shaft bearings in the support housing and the stand is closed.
Durch die in den Unteransprüchen aufgezeichneten Maßnahmen sind zweckmäßige Ausbildungen der Erfindung angegeben, die im Zusammenhang mit den weiteren Merkmalen und Vorteilen der Erfindungen nachfolgend anhand mehrerer Zeichnungen (Fig. 1 bis 3) näher dargestellt und erläutert werden. The measures recorded in the subclaims provide expedient embodiments of the invention, which are illustrated and explained in more detail below in connection with the further features and advantages of the inventions with the aid of several drawings ( FIGS. 1 to 3).
Die Fig. 1 zeigt zur Verdeutlichung des Erfindungsgedan kens einen im Längsschnitt dargestellten Elektromotor, des sen den Ständer 3 bildendes Gehäuse an einem Aufnahmekörper 2 angeflanscht ist. Im Aufnahmekörper 2 sind eine doppel flutige Radialkolbenpumpe 13 zur Druckerzeugung für eine schlupfgeregelte Bremsanlage untergebracht. Zwischen dem Aufnahmekörper 2 und dem als Gehäusetopf ausgeformten Stän der 3 befindet sich ein käfigförmiges Stützgehäuse 9, das die beiden Lager 5, 7, die Welle 1, die Trägerplatte 4, die die Schleifbürsten 10 und weitere elektrische Komponenten aufnimmt, umschließt. Das Stützgehäuse 9 ist korrosionge schützt und leichtbauend zum Zwecke der elektrischen Iso lierung der Trägerplatte und Abdichtung des Ständers 3 ge genüber dem Aufnahmekörper 2 aus einem Kunststoff-Spritz gußteil hergestellt. Das topfförmige Gehäuse des Ständers 3 ist in der gezeigten Ausführungsform als Dünnblech-Tief ziehteil ausgeführt und bildet eine dichte Schutzkappe so wie den Magnetkreis, wobei die Magnete im Ständer 3 einge legt bzw. eingeklebt sind. Der Ständer 3 wird mittels Hal teschrauben am Aufnahmekörper 2 angeflanscht. Eine form schlüssige Befestigung des Ständers 3 am Aufnahmekörper 2 ist gleichfalls denkbar. Der Stützkörper 9 ist an dem zum Ständer 3 gerichteten Bereich als scheibenförmige Träger platte ausgebildet und zwischen dem Aufnahmekörper 2 und dem Flansch des Ständers 3 eingespannt. Die Außenkontur des vorbeschriebenen Trägerplatten-Bereichs am Stützkörper 9 ist dem Übergangsradius am Flansch des topfförmigen Stän ders 3 entsprechend angepaßt, so daß der scheibenförmige Bereich des Stützgehäuses 9 zu Zentrierzwecken einen als Bund 20 ausgeführten Übergangsbereich aufweist. Die Welle 1 des Läufers weist zwischen den beiden Lagern 5, 7 ein Ex zenter 18 auf, der zur Verringerung der Reibleistung zwi schen der Radialkolbenpumpe im Aufnahmekörper 2 und dem Elektromotor mit einem Nadellager versehen ist. Die diame tral angeordneten Querbohrungen 12 des Stützgehäuses 9 im Bereich des Sacklochs 6 befinden sich somit auf Höhe des Exzenters 18, so daß nach der Montage des Elektromotors mit dem Stützgehäuse 9 im Aufnahmekörper 2, die Druckerzeuger elemente 11 der Kolbenpumpe radial auf die Welle 1 gerich tet von außen in die Pumpenzylinder im Aufnahmekörper 2 eingefügt werden, bis sie am Nadellager des Exzenters 18 (permanent) geführt, anliegen. Die Querbohrungen 12 haben den Vorteil, daß ein unbeabsichtigtes Entfernen (lose Hal teschrauben) des Elektromotors vom Aufnahmekörper 2 ausge schlossen ist, da die über das Lager 7 bestehende feste Verbindung des Stützgehäuses 9 mit der Motorwelle lediglich eine maximale Änderung der Axiallage um den Differenzbetrag zwischen den Durchmessern der Pumpkolben (Druckerzeugerele mente 11) und den Querbohrungen 12 zuläßt. Das am Wellen zapfen angeordnete Lager 5 ist gleichfalls als Nadellager gestaltet und in der Sackbohrung 6 des Stützgehäuses 9 ein gepreßt oder vom Kunststoff umspritzt gehalten. Es über nimmt die Funktion eines Führungslagers (Loslager), während die Hauptlagerkräfte über das als Kugellager ausgebildete Lager 7 (Festlager) vom Motor über das Stützgehäuse 9 in den Aufnahmekörper 2 eingeleitet werden. Die Anordnung ei nes leicht, kleinbauenden und geschlossenen Stützgehäuses 9 begünstigt die Schallkapselung bzw. reduziert die Übertra gung vom Körperschall zwischen Pumpe und Elektromotor und ermöglicht eine Funktionsprüfung (Probelauf) des Elektromo tors vor der eigentlichen Montage im Aufnahmekörper 2. Fig. 1 shows, to illustrate the invention, an electric motor shown in longitudinal section, of which the stator 3 forming the housing is flanged to a receiving body 2 . A double-flow radial piston pump 13 for generating pressure for a slip-controlled brake system is accommodated in the receiving body 2 . There is a cage-shaped support housing 9 , which encloses the two bearings 5 , 7 , the shaft 1 , the carrier plate 4 , which holds the grinding brushes 10 and other electrical components, between the receiving body 2 and the housing 3 formed as a housing pot. The support housing 9 is protected against corrosion and is lightweight for the purpose of electrical insulation of the carrier plate and sealing of the stand 3 compared to the receiving body 2 made of a plastic injection molding. The pot-shaped housing of the stand 3 is designed in the embodiment shown as a thin sheet deep-drawn part and forms a tight protective cap as the magnetic circuit, the magnets being inserted or glued into the stand 3 . The stand 3 is flange-mounted on the receiving body 2 by means of hal screws. A form-fitting attachment of the stand 3 to the receiving body 2 is also conceivable. The support body 9 is formed on the area facing the stand 3 as a disk-shaped support plate and clamped between the receiving body 2 and the flange of the stand 3 . The outer contour of the above-described carrier plate area on the support body 9 is adapted to the transition radius on the flange of the cup-shaped stand 3 , so that the disk-shaped area of the support housing 9 has a transition area designed as a collar 20 for centering purposes. The shaft 1 of the rotor has between the two bearings 5 , 7 an Ex eccentric 18 which is provided with a needle bearing to reduce the friction between the radial piston pump's in the receiving body 2 and the electric motor. The diame tral arranged cross holes 12 of the support housing 9 in the region of the blind hole 6 are thus at the level of the eccentric 18 , so that after mounting the electric motor with the support housing 9 in the receiving body 2 , the pressure generator elements 11 of the piston pump radially on the shaft 1 court tet be inserted from the outside into the pump cylinder in the receiving body 2 until they are guided (permanently) on the needle bearing of the eccentric 18 . The cross holes 12 have the advantage that unintentional removal (loose Hal teschraub) of the electric motor from the receiving body 2 is closed, since the existing via the bearing 7 fixed connection of the support housing 9 with the motor shaft only a maximum change in the axial position by the difference between the diameters of the pump pistons (Druckzeugerele elements 11 ) and the transverse bores 12 allows. The arranged on the shaft journal bearing 5 is also designed as a needle bearing and in the blind hole 6 of the support housing 9 a pressed or molded from plastic. It takes on the function of a guide bearing (floating bearing), while the main bearing forces are introduced via the bearing 7 (fixed bearing) designed as a ball bearing from the motor via the support housing 9 into the receiving body 2 . The arrangement egg nes lightweight, small-sized and closed support housing 9 favors the sound encapsulation or reduces the transmission of structure-borne noise between the pump and the electric motor and enables a functional test (test run) of the electric motor before the actual assembly in the receiving body 2 .
Die Fig. 2 zeigt abweichend von Fig. 1 das Stützgehäuse 9 als Metall-Tiefziehteil ausgeführt, das mit seinem schei benförmigen Kontaktbereich zusammen mit dem Ständer 3 einen Befestigungsflansch bildet. Die im wesentlichen scheiben förmig ausgeführte Trägerplatte 4 ist als separates Kunst stoffteil zwischen dem Flansch des Ständers 3 und dem Scheibenbereich des Stützgehäuses 9 gehalten. Das metalli sche Stützgehäuse 9 kann mit dem metallischen Ständer 3 verschweißt oder wie im Ausführungsbeispiel gezeigt, ver schraubt sein, wobei eine zwischen dem Ständer 3, der Trä gerplatte 4 und dem Stützgehäuse 9 eingelegte Dichtung 15 das Eindringen von Feuchtigkeit in den Elektromotor verhin dert. Ein Bund 20 an der Trägerplatte 4 ist an die Form des Ständergehäuses angepaßt, so daß eine einfache Fixierung der Trägerplatte 4 gewährleistet ist, die im gezeigten Bei spiel eine kraftschlüssige Fixierung der Trägerplatte 4 im Ständer 3 verursacht. Eine formschlüssige Fixierung ist gleichfalls durch einfache Herstellung im Spritzguß oder Tiefziehverfahren zu realisieren. Fig. 2 shows, deviating from Fig. 1, the support housing 9 designed as a metal deep-drawn part, which forms a mounting flange with its schei ben-shaped contact area together with the stand 3 . The essentially disk-shaped carrier plate 4 is held as a separate plastic part between the flange of the stand 3 and the disk area of the support housing 9 . The metallic cal support housing 9 can be welded to the metallic stand 3 or, as shown in the exemplary embodiment, be screwed, wherein a gasket 15 inserted between the stand 3 , the carrier plate 4 and the support housing 9 prevents the penetration of moisture into the electric motor. A collar 20 on the support plate 4 is adapted to the shape of the stand housing, so that a simple fixation of the support plate 4 is ensured, which causes a non-positive fixation of the support plate 4 in the stand 3 in the game shown. A form-fitting fixation can also be achieved by simple manufacture by injection molding or deep-drawing.
Die Fig. 3 zeigt eine vorteilhafte weitere Ausführungsform des Stützgehäuses 9 als gespritzte Kunststoffschutzkappe bzw. Kunststoffkäfig, die zur Aufnahme des Lagers 5 eine mit in die Spritzform eingelegte und umspritzte metallische Hülse 14 aufweist. Hierdurch lassen sich in festigkeitskri tischen Bereichen des Stützgehäuses 9 relativ kleine Wand stärken realisieren, ohne die Gefahr eines Defekts am Stützgehäuse 9 hinnehmen zu müssen. Zweckmäßig erweist sich die Fixierung des Lagers 7 im Stützgehäuse 9 mittels Rast haken 8, die relativ einfach durch entsprechende Aussparun gen 19 und entsprechende Formgebung des Stützgehäuses 9 in einer Spritzgußform herzustellen sind. Die Aussparungen 19 und Rasthaken 8 nutzen die nicht unerheblichen elastischen Eigenschaften von dünnwandigen Kunststoffteilen aus und sind auch auf Dünnblechteile übertragbar. Ein direktes Um spritzen der Lagerung 5, 7 mit der Kunststoffmasse während der Herstellung des Stützgehäuses 9 stellt eine weitere zweckmäßige Befestigungsmaßnahme dar, so daß ein am Ständer 3 vormontiertes Stützgehäuse 9 als lauffähige Motoreinheit in die Stufenbohrung des Aufnahmekörpers 2 eingesteckt und befestigt werden kann, wobei die Außenkontur des Stützge häuses 9 der Kontur der Stufenbohrung des Aufnahmekörpers 2 relativ einfach sowohl in den Kunststoffspritzformen wie auch in den Tiefziehformen angepaßt werden kann. Fig. 3 shows an advantageous further embodiment of the support housing 9 as injection-molded plastic cap and a plastic cage, which has to accommodate the bearing 5 with an inserted into the injection mold and molded metallic sleeve 14. As a result, relatively small wall thicknesses can be realized in areas of the support housing 9 which are critical to strength, without having to accept the risk of a defect in the support housing 9 . It proves expedient to fix the bearing 7 in the support housing 9 by means of latching hooks 8 , which can be produced relatively easily by appropriate recesses 19 and corresponding shaping of the support housing 9 in an injection mold. The recesses 19 and locking hooks 8 exploit the not inconsiderable elastic properties of thin-walled plastic parts and can also be transferred to thin sheet metal parts. A direct order to inject the bearing 5 , 7 with the plastic compound during the manufacture of the support housing 9 represents a further expedient fastening measure, so that a support housing 9 preassembled on the stand 3 can be inserted and fastened into the stepped bore of the receiving body 2 as an operational motor unit, whereby the outer contour of the Stützge housing 9 of the contour of the stepped bore of the receiving body 2 can be adapted relatively easily both in the plastic injection molds and in the deep-drawing molds.
Zusammenfassend zeichnet sich die Erfindung durch die Merk male aus, daß beide Lager 5, 7 sowie das Nadellager des Ex zenters 18 von einem baulich und wirkungsmäßig geschlosse nen Stützgehäuse 9 aufgenommen sind, das die Lagerkräfte aufnimmt und mit dem Motor eine geschlossene, funktionsfä hige Einheit bildet. Dieses Stützgehäuse kann als Kunst stoff-Spritzgußteil ausgeführt sein und die bisherige sepa rate Anordnung der Trägerplatte 4 ersetzen. Alternativ kann das Stützgehäuse 9 als Tiefziehteil aus Metall hergestellt werden, das automatengerecht mit dem Ständergehäuse bei spielsweise durch Schweißen dicht verbunden wird oder bei Anwendung eines lösbaren Verbindungsverfahrens mit einer eingelegten Dichtung sicher das Eindringen von Feuchtigkeit in den Motor verhindert. Im genannten Ausführungsbeispiel liegt eine isolierende Trägerplatte 4 zur Aufnahme der Schleifbürsten 10 zwischen dem Ständer 3 und dem Stützge häuse 9 an. Besonders kritische und hochbeanspruchte Be reiche des Stützgehäuses 9 können durch das Umspritzen des Kunststoffes um eingelegte Metallhülsen hinsichtlich ihrer zulässigen Beanspruchung verbessert werden. Eine einfache axiale Fixierung der Lager 5, 7 kann durch Einlegen in die Spritzform und direktes Umspritzen mit dem Kunststoff er folgen. Auch eine Fixierung über Rasthaken 8, die sich beim Einbau des Motors in den Aufnahmekörper 2 aufgrund ihrer Formgebung vor das betreffende Lager schieben, ermöglicht eine einfache billige Befestigungs- und Justiermaßnahme der Lagerung. Da die Pumpkolben erst nach dem Elektromotor im Aufnahmekörper 2 montiert werden, bilden sie eine Fesselung des Stützgehäuses 9 im Bereich der Querbohrungen 12, so daß eine Haltesicherung für den Ständer 3 am Aufnahmekörper 2 vorliegt.In summary, the invention is characterized by the features that both bearings 5 , 7 and the needle bearing of the Ex center 18 are received by a structurally and effectively closed support housing 9 , which absorbs the bearing forces and with the motor a closed, functional unit forms. This support housing can be designed as a plastic injection molded part and replace the previous separate arrangement of the carrier plate 4 . Alternatively, the support housing 9 can be made as a deep-drawn part made of metal, which is automatically connected to the stator housing in a sealed manner, for example by welding, or if a releasable connection method with an inserted seal reliably prevents moisture from penetrating the motor. In the mentioned embodiment, an insulating carrier plate 4 for receiving the grinding brushes 10 between the stand 3 and the Stützge housing 9 . Particularly critical and highly stressed areas of the support housing 9 can be improved in terms of their permissible stress by the encapsulation of the plastic around inserted metal sleeves. A simple axial fixation of the bearing 5 , 7 can be followed by inserting it into the injection mold and direct extrusion coating with the plastic. A fixation via latching hooks 8 , which when the motor is installed in the receiving body 2 due to its shape, push in front of the bearing in question, enables a simple, inexpensive fastening and adjustment measure for the bearing. Since the pump pistons are mounted in the receiving body 2 only after the electric motor, they form a tethering of the support housing 9 in the region of the transverse bores 12 , so that there is a securing means for the stand 3 on the receiving body 2 .
BezugszeichenlisteReference list
1 Welle
2 Aufnahmekörper
3 Ständer
4 Trägerplatte
5 Lager
6 Sackloch
7 Lager
8 Rasthaken
9 Stützgehäuse
10 Schleifbürste
11 Druckerzeugerelement
12 Querbohrung
14 Hülse
15 Dichtung
16 Öffnung
17 Vorsprung
18 Exzenter
19 Aussparung
20 Bund 1 wave
2 receptacles
3 stands
4 carrier plate
5 bearings
6 blind hole
7 bearings
8 locking hooks
9 support housing
10 sanding brush
11 pressure generator element
12 cross hole
14 sleeve
15 seal
16 opening
17 head start
18 eccentrics
19 recess
20 fret
Claims (12)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4331625A DE4331625A1 (en) | 1993-09-17 | 1993-09-17 | Electrical machine for converting electrical and mechanical energy, in particular an electrical motor to which radial force is applied in order to drive pumps |
EP94916952A EP0698183B1 (en) | 1993-05-12 | 1994-05-13 | Electromotor-pump assembly |
JP06524963A JP3078578B2 (en) | 1993-05-12 | 1994-05-13 | Electric pump motor assembly |
US08/545,815 US5895207A (en) | 1993-06-17 | 1994-05-13 | Electric motor-pump assembly |
DE59404678T DE59404678D1 (en) | 1993-05-12 | 1994-05-13 | ELECTRIC MOTOR PUMP UNIT |
PCT/EP1994/001525 WO1994027045A1 (en) | 1993-05-12 | 1994-05-13 | Electromotor-pump assembly |
KR1019950704842A KR960702061A (en) | 1993-05-12 | 1994-05-13 | ELECTROMOTOR-PUMP ASSEMBLY |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4331625A DE4331625A1 (en) | 1993-09-17 | 1993-09-17 | Electrical machine for converting electrical and mechanical energy, in particular an electrical motor to which radial force is applied in order to drive pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4331625A1 true DE4331625A1 (en) | 1995-03-23 |
Family
ID=6497946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4331625A Withdrawn DE4331625A1 (en) | 1993-05-12 | 1993-09-17 | Electrical machine for converting electrical and mechanical energy, in particular an electrical motor to which radial force is applied in order to drive pumps |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4331625A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19648319A1 (en) * | 1996-06-18 | 1998-01-02 | Teves Gmbh Alfred | Radial piston pump |
DE19636508A1 (en) * | 1996-09-09 | 1998-03-12 | Teves Gmbh Alfred | Radial piston pump with one-sided closed bearing shell of the radial bearing |
DE19704752A1 (en) * | 1997-02-08 | 1998-08-13 | Itt Mfg Enterprises Inc | Needle bearing esp. for radial piston pump |
DE19711557A1 (en) * | 1997-03-20 | 1998-09-24 | Schaeffler Waelzlager Ohg | Radial piston pump |
DE19728802A1 (en) * | 1997-07-05 | 1999-01-07 | Itt Mfg Enterprises Inc | Bearing arrangement for a motor-driven unit |
DE102005046284A1 (en) * | 2005-02-28 | 2006-08-31 | Temic Automotive Electric Motors Gmbh | Electric motor for use as small power motor in motor vehicle, has stator with stator-laminated core on whose front side stator plates are provided, where each plate has reinforcing bracket for reinforcing bearing seat |
DE102007025838A1 (en) * | 2006-10-24 | 2008-04-30 | Temic Automotive Electric Motors Gmbh | Electrical machine e.g. electrically driven engine, centering arrangement, has bearing section with section enclosing front side of bearing, where section has end area that makes angle with primary area of section and forms centering unit |
WO2017102630A1 (en) * | 2015-12-18 | 2017-06-22 | Robert Bosch Gmbh | Electric drive unit having a housing |
DE102019133966A1 (en) * | 2019-12-11 | 2021-06-17 | Schaeffler Technologies AG & Co. KG | Hydraulic pump actuator driven by an electric motor |
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DE19648319A1 (en) * | 1996-06-18 | 1998-01-02 | Teves Gmbh Alfred | Radial piston pump |
DE19648319B4 (en) * | 1996-06-18 | 2009-01-02 | Continental Teves Ag & Co. Ohg | Radial piston pump |
DE19636508A1 (en) * | 1996-09-09 | 1998-03-12 | Teves Gmbh Alfred | Radial piston pump with one-sided closed bearing shell of the radial bearing |
DE19704752A1 (en) * | 1997-02-08 | 1998-08-13 | Itt Mfg Enterprises Inc | Needle bearing esp. for radial piston pump |
DE19711557A1 (en) * | 1997-03-20 | 1998-09-24 | Schaeffler Waelzlager Ohg | Radial piston pump |
US6003430A (en) * | 1997-03-20 | 1999-12-21 | Ina Walzlager Schaeffler Ohg | Radial piston pump |
DE19728802A1 (en) * | 1997-07-05 | 1999-01-07 | Itt Mfg Enterprises Inc | Bearing arrangement for a motor-driven unit |
DE102005046284A1 (en) * | 2005-02-28 | 2006-08-31 | Temic Automotive Electric Motors Gmbh | Electric motor for use as small power motor in motor vehicle, has stator with stator-laminated core on whose front side stator plates are provided, where each plate has reinforcing bracket for reinforcing bearing seat |
DE102007025838A1 (en) * | 2006-10-24 | 2008-04-30 | Temic Automotive Electric Motors Gmbh | Electrical machine e.g. electrically driven engine, centering arrangement, has bearing section with section enclosing front side of bearing, where section has end area that makes angle with primary area of section and forms centering unit |
WO2017102630A1 (en) * | 2015-12-18 | 2017-06-22 | Robert Bosch Gmbh | Electric drive unit having a housing |
DE102019133966A1 (en) * | 2019-12-11 | 2021-06-17 | Schaeffler Technologies AG & Co. KG | Hydraulic pump actuator driven by an electric motor |
WO2021115524A1 (en) * | 2019-12-11 | 2021-06-17 | Schaeffler Technologies AG & Co. KG | Electric-motor-driven hydraulic pump actuator |
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Owner name: CONTINENTAL TEVES AG & CO. OHG, 60488 FRANKFURT, D |
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