WO2018046690A1 - Ressort de retenue pour un actionneur et actionneur - Google Patents

Ressort de retenue pour un actionneur et actionneur Download PDF

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Publication number
WO2018046690A1
WO2018046690A1 PCT/EP2017/072638 EP2017072638W WO2018046690A1 WO 2018046690 A1 WO2018046690 A1 WO 2018046690A1 EP 2017072638 W EP2017072638 W EP 2017072638W WO 2018046690 A1 WO2018046690 A1 WO 2018046690A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
electric motor
actuator
clamping
retaining spring
Prior art date
Application number
PCT/EP2017/072638
Other languages
German (de)
English (en)
Inventor
Benjamin Grothe
Original Assignee
HELLA GmbH & Co. KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HELLA GmbH & Co. KGaA filed Critical HELLA GmbH & Co. KGaA
Publication of WO2018046690A1 publication Critical patent/WO2018046690A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
    • 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

Definitions

  • the present invention relates to a retaining spring for an actuator referred to in the preamble of claim 1 and an actuator referred to in the preamble of claim 9.
  • an actuator in which an electric motor is mounted in a housing of the actuator and is biased by a retaining clip designed as a retaining spring against a housing disposed in the housing and designed as a positioning radial bearing.
  • the mounting bracket on a curved adapted to the lateral surface of the electric motor body region are formed at the two end faces fingers.
  • the fingers on one side of the mounting bracket push the positioning plate against the output side end of the electric motor.
  • the arranged on the opposite side of the mounting bracket finger press against an end cap of the electric motor, so that the end cap rests firmly on a sleeve-like metal housing of the electric motor.
  • the present invention has for its object to provide a vibration-resistant attachment of the electric motor in a housing of an actuator in a structurally simpler manner. This object is achieved by a retaining spring for an actuator with the features of claim 1 and an actuator having the features of claim 9.
  • the subclaims relate to advantageous developments of the invention.
  • a significant advantage of the inventive solution lies in the fact that the retaining spring according to the invention biases the electric motor in a structurally simpler manner against the housing axially. In this way, the assembly of the retaining spring and thus the assembly of the actuator is simplified.
  • the retaining spring according to the invention and the actuator according to the invention can be produced more easily than the prior art.
  • the clamping leg has a first passage opening for a fastening paragraph of the electric motor and at the wall defining the first passage opening at least one clamping projection, in particular a clamping projection formed as a barb.
  • the clamping leg has at least one insertion bevel and / or clamping bevel, in particular an insertion bevel formed as a barb and / or clamping bevel.
  • the insertion bevel allows easy insertion and positioning of the retaining spring in the space between the electric motor and a B-bearing of an actuator.
  • the clamping slope allows a fixation of the retaining spring in the aforementioned space in a structurally simple manner.
  • the insertion bevel is simultaneously designed as a clamping slope. With the design as a barb, the clamping bevel or the same time designed as a clamping bevel insertion be realized in a particularly simple and robust manner.
  • Another advantageous development of the retaining spring according to the invention provides that at least one second passage opening for electrical contact of the electric motor is formed on the clamping leg. In this way it is possible to arrange the retaining spring in the region of the electrical contacting of the electric motor.
  • the retaining spring can be freely selected according to type, shape, dimensioning, arrangement and material within wide suitable limits.
  • at least one stiffening means is formed in the edge region of the support leg and / or the clamping leg.
  • the rigidity of the retaining spring is increased.
  • the processing and use of the inner portion of the spring plate is not complicated by stiffening means arranged therein.
  • an encoder is formed on the support leg and / or the clamping leg.
  • retaining spring according to the invention provides that at least one gripping tab is formed on the supporting leg and / or the clamping leg. As a result, the manual or automated handling of the retaining spring or consisting of an electric motor and retaining spring assembly is much easier.
  • a particularly advantageous embodiment of the retaining spring according to the invention provides that a transition region between the support leg and the clamping leg is curved. In this way, the resistance to breakage of the mechanically heavily loaded transition region between the support leg and the clamping leg is increased in a structurally particularly simple way.
  • the actuator of the invention according to type, shape, dimensioning and material is freely selectable within wide suitable limits.
  • the retaining spring is designed as a spring plate according to one of claims 1 to 8.
  • the dimensions of the support leg and the clamping leg of the spring plate and the angle formed between the support leg and the clamping leg are so matched to the dimensions of the B-bearing, that in the assembly position, the actuator by the spring plate a predetermined axial bias of the electric motor is effected against the A-bearing.
  • the axial preload of the electric motor against the A-bearing can thus be adjusted as desired by dimensioning the support leg and the clamping leg of the spring plate and the angle formed between the support leg and the clamping leg of the spring plate. If a higher axial preload of the electric motor by the spring plate is required in an individual case, so for example, a larger angle between the support leg and the clamping leg of the spring plate may be provided and vice versa.
  • the A-bearing and the B-bearing are each formed as a radial bearing shell and each having at least one crash rib.
  • the formation of the A-bearing and the B-bearing as radial bearing shells allows easy installation of the actuator.
  • the Crashrippen ensure structurally simple way a fixed radial seat of the stored in the A-bearing and the B-bearing electric motor.
  • Fig. 1 shows an embodiment of an actuator according to the invention with a retaining spring according to the invention in a first perspective view in partial view;
  • Fig. 2 shows the embodiment in a partially sectioned side view
  • FIG 3 shows the embodiment in a second perspective view in partial view.
  • Fig. 4 shows the embodiment in a partial plan view
  • Fig. 5 shows the embodiment in a partial detail view overlooking the
  • Fig. 6 shows the embodiment in a partial detail view overlooking the
  • FIG. 1 an embodiment of an actuator according to the invention with a retaining spring 2 according to the invention is shown.
  • the actuator has a two-part housing 4 made of plastic, which consists of a housing upper shell, not shown, and a housing lower shell 4.1.
  • a housing upper shell not shown
  • a housing lower shell 4.1 In the lower housing shell 4.1 of the housing 4, an electric motor 6 is mounted with an output shaft 6.1.
  • the lower housing shell 4.1 a driven side and designed as a radial bearing shell A-bearing 4.2 and designed as a radial bearing shell B-bearing 4.3, wherein the B-bearing 4.3 in the assembly position of the actuator opposite one of the output shaft 6.1 opposite end 6.2 of the electric motor 6 is arranged ,
  • the A-bearing 4.2 and the B-bearing 4.3 are an integral part of the housing lower shell 4.1.
  • the retaining spring 2 is formed as a cross-sectionally L-shaped spring plate 2 made of spring steel and has a support leg 2.1 and a clamping leg 2.2.
  • the tensioning leg 2.2 is arranged in the assembly position of the actuator shown in FIG. 1 between the end 6.2 of the electric motor 6 and the B-bearing 4.3 of the housing lower shell 4.1 and biases the electric motor 6 against the A-bearing 4.2 der- axial manner, that the axial forces arising during operation of the actuator and acting on the electric motor 6 are transmitted to the housing 4 to the housing 4 substantially without relative movement of the electric motor 6.
  • the clamping leg 2.2 is arranged in a relaxed state of the spring plate 2, not shown, at an angle of about 95 ° to the support leg 2.1.
  • the support leg 2.1 is used to attach the spring plate 2 to the housing lower shell 4.1.
  • the support leg 2.1 has a passage opening 2.1 .1 shown in FIG.
  • the spring plate 2 is screwed tightly in the assembly position of the actuator shown in Fig. 1 by means of a fastening screw designed as a fastening means 8 on the lower housing shell 4.1.
  • the support leg 2.1 serves as a support for the clamping leg 2.2. Due to the predetermined angle between the support leg 2.1 and clamping leg 2.2 of the spring plate 2 results in the assembly position of the actuator, the desired spring force with which the spring plate 2 presses the electric motor 6 against the A-bearing 4.2 and thus biases axially.
  • a transition region 2.3 between the support leg 2.1 and the clamping leg 2.2. the spring plate 2 is curved. In this way, the mechanically heavily loaded transition region 2.3 protected in a structurally simple way from damage. In addition, the curved transition region 2.3 allows exact alignment of the two legs 2.1 and 2.2 of the spring plate 2 to the B-bearing 4.3 and thus to the lower housing shell 4.1 in the assembly position of the actuator.
  • the clamping leg 2.2 has in its inner region a first passage opening 2.2.1 shown in FIG. 3 for a fastening shoulder 6.3 of the electric motor 6 shown in FIG.
  • At one of the passage opening 2.2.1 bounding wall of the clamping leg 2.2 is designed as a barb clamping projection 2.2.3 is arranged; see Fig. 3.
  • the electric motor 6 projects with its attachment paragraph 6.3 through the first Through opening 2.2.1 of the clamping leg 2.2 through and is clamped undetachably by the barb 2.2.3.
  • clamping leg 2.2 of the spring plate 2 in its lateral edge regions in each case a second through opening 2.2.2 for a formed as a contact lance electrical contact 6.4 of the electric motor 6, of which in Fig. 1, only a second through hole 2.2.2 and a contact lug 6.4 visible are.
  • stiffening 2.2.4 are formed in the lateral edge regions of the clamping leg 2.2 formed as beads stiffening 2.2.4.
  • the beads 2.2.4 ensure that the axial forces acting mainly over the edge region of the electric motor 6 are reliably absorbed by the spring plate 2.
  • the clamping leg 2.2 is also stiffened by the already explained transition region 2.3 as well as by two stiffening edges 2.2.5 arranged on the opposite side of the clamping leg 2.2; see Fig. 3.
  • a further edge of the clamping leg 2.2 serves as a coding 2.2.6.
  • the further folded edge 2.2.6 projects in comparison to the stiffening edges 2.2.5 further out of the in the assembly position of the actuator facing the electric motor 6 base surface of the clamping leg 2.2 of the spring plate 2 and engages in the in Fig.
  • the further folded 2.2.6 has an insertion bevel for the groove of the electric motor 6.
  • the clamping leg 2.2 in each case also has a gripping tab 2.2.7, likewise designed as a folded edge.
  • the electric motor 6 facing away from the base surface of the clamping leg 2.2 of the spring plate 2 are two insertion bevels 2.2.8 and two clamping bevels 2.2.9 arranged; see Fig. 3.
  • the chamfers 2.2.8 and the clamping bevels 2.2.9 are formed as issued from the aforementioned base of the spring plate 2 claws, each acting as a barb.
  • FIG. 4 shows the lower housing shell 4.1 of the housing 4 in a partial plan view. Clearly visible are formed as a radial bearing shell A-bearing 4.2 and designed as a radial bearing shell B-bearing 4.3, which are shown in FIGS. 5 and 6 respectively in a front view with a view from the direction of the electric motor 6. The electric motor 6 and the spring plate 2 are not shown in FIGS. 4 to 6 for the sake of clarity.
  • FIG. 5 shows the cooperating with the output side end of the electric motor 6 A-bearing 4.2 and Fig. 6 cooperating with the opposite end 6.2 of the electric motor 6 B-bearing 4.3.
  • the A-bearing 4.2 has two bearing seats 4.2.1 for the support of a not shown mounting paragraph of the electric motor 6 and the B-bearing 4.3 has two bearing seats 4.3.1 for the support of the attachment paragraph 6.3 of the electric motor 6; see Fig. 2.
  • At the on the bearing seats 4.2.1 and 4.3.1 in the direction of the free ends of the A-bearing 4.2 and the B-bearing 4.3 subsequent insertion bevels so-called Crashrippen 4.2.2 and 4.3.2 are formed.
  • the Crashrippen 4.2.2 and 4.3.2 are narrow plastic webs of the housing lower shell 4.1, which deform plastically and thus permanently when mounting the electric motor 6 in the lower housing shell 4.1. As a result, a fixed radial seat of the electric motor 6 in the two bearings 4.2 and 4.3 realized in a structurally simple manner.
  • the spring plate 2 is mechanically connected to the electric motor 6.
  • the spring plate 2 is pressed with the clamping leg 2.2 on the mounting paragraph 6.3 of the electric motor 6.
  • the coding means 2.2.6 an incorrect alignment of the spring plate 2 to the electric motor 6 is prevented.
  • the spring plate 2 is now mechanically connected to the electric motor 6 in the correct position. In the mounting position of the spring plate 2 and electric motor 6, the contact lugs 6.4 of the electric motor 6 project through the second passage openings 2.2.2 of the clamping leg 2.2; see Fig. 1.
  • the insertion bevels 2.2.8 engage the B-bearing 4.3.
  • the insertion bevels 2.2.8 ensure that the assembly is pressed and positioned in the direction of the A-bearing 4.2 when inserted into the lower housing shell 4.1.
  • the assembly is in the achieved in the aforementioned manner in the housing lower shell 4.1 axially fixed.
  • the spring plate 2 is then screwed by means of the fastening screw 8 with the B bearing 4.3; see Fig. 2.
  • the fastening screw 8 is not shown completely screwed into the B-bearing 4.3, which is at the gap between the support leg 2.1 of the spring plate 2 and the top of the B-bearing 4.3 can be seen.
  • the support leg 2.1 and the clamping leg 2.2 of the spring plate 2 are not yet stretched in the position shown in Fig. 2 against each other.
  • the reinforcing means namely the beads 2.2.4, the Versteifungsumkanteptept 2.2.5, the transition region 2.3 and the gripping tabs 2.2.7, reinforced edge regions of the clamping leg 2.2, the axial forces occurring during operation of the actuator can be recorded without the function of the spring plate 2 to affect.
  • the beads 2.2.4 play a very important role, since in the regions of the beads 2.2.4 the highest axial forces are transmitted from the electric motor 6 to the spring plate 2.
  • the angle between the support leg 2.1 and the clamping leg 2.2 of the spring plate 2 can therefore be adjusted by the angle between the support leg 2.1 and the clamping leg 2.2 of the spring plate 2 and thus by the gap between the support leg 2.1 of the spring plate 2 and the top of the B-bearing 4.3 gap the bias in the desired manner.
  • a higher bias of the electric motor 6 by the spring plate 2 is required, then a larger angle between the two legs 2.1, 2.2 of the spring plate 2 can be realized.
  • the dimensions of the support leg and the clamping leg of the spring plate are so matched to the dimensions of the B-bearing, that in the assembly position, the actuator by the spring plate a predetermined axial bias of the electric motor against the A- Warehouse is effected.
  • the gap between the support leg 2.1 and the top of the B-bearing 4.3 is greater and thus the bias of the electric motor 6 by the spring plate 2 in the complete screwing the mounting screw 8 in the internal thread of the B-bearing 4.3, not shown, in which the Support legs 2.1 is pressed down to contact with the top of the B-bearing 4.3, so that the spring plate 2 stretched and Thus, the electric motor 6 is biased axially by means of the spring plate 2 against the A-bearing 4.2.
  • the invention is not limited to the present embodiment.
  • the person skilled in the art will predetermine the angle between the supporting leg and the clamping leg and / or the dimensions of the retaining spring according to the invention.
  • the material for the retaining spring according to the invention and the other components of the actuator according to the invention within wide suitable limits is freely selectable.
  • the spring plate can also be attached to the B-bearing in other ways known and suitable to a person skilled in the art.
  • the support leg takes over only the function of the thrust bearing for the clamping leg and the spring plate can be fastened at least by means of another leg to the B-bearing.
  • other known and suitable fastening means are conceivable.
  • the clamping projection and the at least one insertion bevel and / or clamping bevel need not necessarily be designed as claws issued from one of the bases of the clamping leg, in particular not as barbs.
  • the insertion bevel and / or clamping bevel may be ramps or the like projecting on one of the base surfaces of the clamping leg.
  • the transition region between the support leg and the clamping leg need not have a circular curvature.
  • the output side A-bearing does not have to be designed as a bearing shell.
  • training as a radial bearing bush would be conceivable.
  • the B-bearing which is arranged at the opposite end of the electric motor, be formed as a two-part radial bearing bushing.
  • the Crashrippen are also not mandatory.
  • Other measures known and suitable to the person skilled in the art are also possible in order to radially fix the electric motor in the bearings. LIST OF REFERENCE NUMBERS

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

L'invention concerne un ressort de retenue pour un actionneur, permettant la précontrainte axiale d'un moteur électrique dans un carter de l'actionneur contre un palier A agencé dans le carter, et un actionneur. L'invention vise à permettre de fixer le moteur électrique dans un carter d'un actionneur de manière résistante aux vibrations et plus simple en termes de conception. À cet effet, le ressort de retenue (2) est réalisé sous la forme d'une plaque élastique (2) présentant une section transversale en L, qui comprend une branche d'appui (2.1) et une branche de serrage (2.2) pour le moteur électrique (6), la branche d'appui (2.1) et la branche de serrage (2.2) étant agencées de manière à former un angle l'une par rapport à l'autre, en particulier de manière à former un angle de 80° à 100°. En outre, l'actionneur comprend une plaque élastique (2), laquelle, une fois l'actionneur monté, est agencée entre l'extrémité (6.2) du moteur électrique (6) opposée au palier A (4.2) et un palier B (4.3), le palier B (4.3) étant réalisé sous la forme d'un palier radial (4.3) pour le moteur électrique (6).
PCT/EP2017/072638 2016-09-12 2017-09-08 Ressort de retenue pour un actionneur et actionneur WO2018046690A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016117082.8 2016-09-12
DE102016117082.8A DE102016117082A1 (de) 2016-09-12 2016-09-12 Haltefeder für einen Aktor und Aktor

Publications (1)

Publication Number Publication Date
WO2018046690A1 true WO2018046690A1 (fr) 2018-03-15

Family

ID=59829386

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/072638 WO2018046690A1 (fr) 2016-09-12 2017-09-08 Ressort de retenue pour un actionneur et actionneur

Country Status (2)

Country Link
DE (1) DE102016117082A1 (fr)
WO (1) WO2018046690A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7826223U1 (de) * 1978-09-04 1978-12-14 Siemens Ag, 1000 Berlin Und 8000 Muenchen Federelement fuer eine elektromotor- zentralaufhaengung, insbesondere fuer bueromaschinen
JPS5574258U (fr) * 1978-11-14 1980-05-22
WO1993023641A1 (fr) * 1992-05-11 1993-11-25 Wacker-Werke Gmbh & Co. Kg Vibreur avec moteur electrique incorpore
DE102014100675A1 (de) 2013-01-29 2014-07-31 Johnson Electric S.A. Schwingungsfeste Motorbefestigung in einem Aktuator
CN103999334A (zh) * 2011-12-23 2014-08-20 罗伯特·博世有限公司 在滚动轴承与壳体件之间具有轴向的预应力的电机及用于运行这样的电机的方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3508249A1 (de) 1985-03-08 1986-09-11 Bayerische Motoren Werke AG, 8000 München Befestigungsanordnung fuer kleinmotoren
US6324878B1 (en) 1999-08-26 2001-12-04 Methode Electronics, Inc. Steering lock device with safety system
JP4206920B2 (ja) 2003-12-19 2009-01-14 株式会社デンソー アクチュエータ保持装置
JP4490897B2 (ja) 2005-10-14 2010-06-30 愛三工業株式会社 電子制御式スロットル弁装置
DE102012108853A1 (de) 2012-09-20 2014-03-20 Hella Kgaa Hueck & Co. Stellantrieb
DE102013101939B4 (de) 2013-02-27 2018-12-13 Pierburg Gmbh Antriebsanordnung für ein Aggregat eines Verbrennungsmotors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7826223U1 (de) * 1978-09-04 1978-12-14 Siemens Ag, 1000 Berlin Und 8000 Muenchen Federelement fuer eine elektromotor- zentralaufhaengung, insbesondere fuer bueromaschinen
JPS5574258U (fr) * 1978-11-14 1980-05-22
WO1993023641A1 (fr) * 1992-05-11 1993-11-25 Wacker-Werke Gmbh & Co. Kg Vibreur avec moteur electrique incorpore
CN103999334A (zh) * 2011-12-23 2014-08-20 罗伯特·博世有限公司 在滚动轴承与壳体件之间具有轴向的预应力的电机及用于运行这样的电机的方法
DE102014100675A1 (de) 2013-01-29 2014-07-31 Johnson Electric S.A. Schwingungsfeste Motorbefestigung in einem Aktuator

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