EP4581285A1 - Actionneur, notamment de type électromécanique - Google Patents
Actionneur, notamment de type électromécaniqueInfo
- Publication number
- EP4581285A1 EP4581285A1 EP23767831.3A EP23767831A EP4581285A1 EP 4581285 A1 EP4581285 A1 EP 4581285A1 EP 23767831 A EP23767831 A EP 23767831A EP 4581285 A1 EP4581285 A1 EP 4581285A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- actuator
- output member
- rotating output
- rotating
- 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.)
- Pending
Links
Classifications
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/031—Gearboxes; Mounting gearing therein characterised by covers or lids for gearboxes
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02034—Gearboxes combined or connected with electric machines
-
- 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
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
- F16H57/022—Adjustment of gear shafts or bearings
- F16H2057/0221—Axial adjustment
Definitions
- the present invention relates to an actuator, in particular of the electromechanical type, in particular for an application on a vehicle, for example a motor vehicle.
- the vehicle may be land, sea or air.
- the actuator described in this patent application DE102020120241 A1 comprises, in a housing closed by a cover, a BLDC type electric motor with a stator and a rotor.
- a reduction gear train is also provided to transmit a torque produced by the motor to an output pinion.
- This output gear is formed in one piece with a hollow shaft passing through an opening in the housing to be connected to a valve element.
- a three-pronged support member holds the upper end of the output gear.
- FIG. 1 shows an actuator 100 of a type substantially similar to that described in patent application DE102020120241 A1.
- This actuator comprises an electric motor 101 which drives, via a set of gears (not shown), an output pinion 102.
- This pinion 102 comprises a toothed wheel 103 and a hollow shaft 104 made in one piece.
- the upper part of the pinion 102 is held by a support member 106, forming a first smooth pivoting bearing 107.
- a second bearing pivoting 108 is present at the lower end of the hollow shaft 104.
- These bearings 107 and 108 are radial type supports.
- An axial stop is provided between the output pinion 102 and an annular wall 110 of the housing.
- the alignment of the one-piece part (output gear/hollow shaft) in the two bearings 107 and 108 requires precision in the dimensions and positioning of these bearings. This imposes strict manufacturing tolerances.
- the one-piece part pivots in two bearings 107 and 108, therefore in two locations, which generates more wear.
- the presence of a hall effect sensor above a magnet carried by the one-piece part (output gear/hollow shaft) requires the use of the support member 106.
- the invention aims in particular to improve an actuator of the type described with reference to Figure 1.
- the subject of the invention is thus an actuator comprising a housing, a rotary output member arranged to provide an actuation torque, this rotary member being rotatable relative to the housing along an axis of rotation and comprising a first part and a second part assembled together, the housing being provided with two antagonistic axial stops on each of which each part of the rotating output member rests respectively so that once assembled and resting on the axial stops of the housing, the rotating output member is kept fixed axially in the direction of the axis of rotation.
- axial stop we mean a stop capable of blocking translation in one of the directions along the axis of rotation of the rotating member.
- one of the axial stops ensures blocking in translation in one of the two directions of the axis of rotation, and the other of the axial stops ensures blocking in translation in the direction opposite the axis of rotation.
- These antagonistic axial locks thus immobilize the rotating output member axially on its axis of rotation, a member which cannot translate in one direction or the other, along the axis of rotation.
- the rotating output member can rotate around its axis of rotation, without the possibility of translation along this axis.
- blocking in translation in the axis of rotation of the rotating member can be achieved simply by assembling the first and second parts on the axial stops. For example, it is not necessary to use an additional part such as the support part 104 in the actuator of the figure 1.
- the first and second parts of the rotating member sandwich the axial stops of the housing.
- the first part of the rotating output member comprises a toothed sector, in particular in the form of a toothed wheel, configured to cooperate with a complementary gear element.
- This complementary gear element is in particular part of a gear train between an electric motor and the rotating output member.
- the diameter of this toothed sector, in particular of this toothed wheel corresponding to the maximum diameter of the rotating output member, this diameter being measured perpendicular to the axis of rotation .
- the second part of the rotating output member comprises a male or female socket, arranged to cooperate with an actuating member, in particular of the type arranged to perform a function of valve.
- the actuating member is associated with a flap to selectively take an open or closed position for the circulation of a fluid in a valve.
- the second part of the rotating output member comprises a female socket formed by a cavity configured to cooperate with an actuating member so as to transmit the torque to it. actuation.
- this cavity has a substantially polygonal cross section, for example hexagonal or octagonal, or a cross section with petals, arranged to receive a rod of complementary shape to the organ of actuation.
- the second part is arranged to rotate in an outlet opening, in particular circular, of the housing, thus forming a pivot connection between this second part and the housing.
- the second part of the rotating outlet member extends through this outlet opening.
- the second part is arranged to rotate in contact with an internal wall of this outlet opening of the housing.
- the housing with its outlet opening, thus forms a plain bearing for the second part of the rotating member.
- the invention allows, due to this unique bearing, a greater sizing tolerance in the manufacturing of the parts.
- the second part of the rotating outlet member comprises a cylindrical barrel engaged in the outlet opening of the housing.
- the housing comprises an internal annular wall provided with a free end, which free end forms one of the axial stops.
- This annular wall is called internal because it is inside the housing.
- This housing is in particular closed by a cover, for example a substantially planar cover.
- the rotating outlet member 5 is associated with a flap to selectively take an open or closed position for the circulation of a fluid in a valve.
- the second part 15 of the rotating outlet member 5 comprises a female socket 20 formed by a cavity, arranged to cooperate with a valve actuating member such as a flap, not shown.
- This second part 15 is arranged to rotate in contact with an internal wall 22 of this outlet opening 21.
- the housing 8 further comprises an external annular wall 28 provided with a free end 29, and this free end 29, in the shape of a flat, defines the other axial stop 18.
- This annular wall 28 is called external due to the fact that it is outside the housing 8.
- the actuator 1 comprises an annular seal 33 resting on a periphery of the second part 15 of the rotating member 5, to provide a seal facing the outlet opening 21.
- This seal 33 comprises an annular lip 34 in tight support on the cylindrical barrel 24 of the second part 15, and a rim 35 in tight support on an internal face of the housing 8.
- the cylindrical barrel 24 is closed by a transverse wall 40 and the crown 39 is connected to this transverse wall 40.
- the first part 14 of the rotating member 5 comprises a hollow column 42 connecting to the toothed wheel 19, and this hollow column 42 comprises a housing for housing the magnet 38.
- the first and second parts 50 and 51 of the rotating output member 52 are assembled together by snap-fastening.
- the second part 51 of the rotating member 52 comprises four latching tabs 54 arranged to retain the first part 50 on a shoulder 55 of this second part 51.
- latching tabs 54 are arranged along a circular circumference, and are symmetrical to each other by rotation.
- the first part 50 of the rotary member 52 further comprises a hollow column 58 connecting to the toothed wheel 19, this hollow column 58 comprising windows 59 in each of which engages a head of a latch tab 54 .
- the windows 59 are arranged adjacent to the toothed wheel 19, and are arranged on a circular perimeter.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Rolling Contact Bearings (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2208826A FR3139420B1 (fr) | 2022-09-02 | 2022-09-02 | Actionneur, notamment de type électromécanique |
| PCT/EP2023/074091 WO2024047249A1 (fr) | 2022-09-02 | 2023-09-01 | Actionneur, notamment de type électromécanique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4581285A1 true EP4581285A1 (fr) | 2025-07-09 |
Family
ID=83900253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23767831.3A Pending EP4581285A1 (fr) | 2022-09-02 | 2023-09-01 | Actionneur, notamment de type électromécanique |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4581285A1 (fr) |
| CN (1) | CN119731453A (fr) |
| FR (1) | FR3139420B1 (fr) |
| WO (1) | WO2024047249A1 (fr) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2709617B1 (fr) * | 1993-09-02 | 1995-09-29 | Gec Alsthom Transport Sa | Ensemble moto-réducteur. |
| DE102020120241A1 (de) | 2020-07-31 | 2022-02-03 | Minebea Mitsumi Inc. | Stellantrieb mit einem Elektromotor und Verfahren zur Positionsbestimmung eines Stellantriebes |
-
2022
- 2022-09-02 FR FR2208826A patent/FR3139420B1/fr active Active
-
2023
- 2023-09-01 CN CN202380063099.7A patent/CN119731453A/zh active Pending
- 2023-09-01 WO PCT/EP2023/074091 patent/WO2024047249A1/fr not_active Ceased
- 2023-09-01 EP EP23767831.3A patent/EP4581285A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN119731453A (zh) | 2025-03-28 |
| WO2024047249A1 (fr) | 2024-03-07 |
| FR3139420B1 (fr) | 2024-08-23 |
| FR3139420A1 (fr) | 2024-03-08 |
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Legal Events
| Date | Code | Title | Description |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17P | Request for examination filed |
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| AK | Designated contracting states |
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