Gear motor bracket housing position detector and connector terminal constructing the detector

Abstract

The invention relates to a support (6) for supporting and centering at least one shaft (43) of a reduction gear of a geared motor. The bracket (6) comprises a recess (65) for receiving an immovable portion (51) of the position detector (5). The bracket (6) comprises at least one retaining member (70, 71, 73) for retaining an immovable portion (51) of the position detector in the recess (65). The bracket (6) is further configured to at least partially house a terminal (8) for connecting an immovable portion (51) of the position detector to a control member (12) of the geared motor. The holder (6) comprises at least one recess (92) for receiving the terminal and / or the holder (6) comprises at least one through channel (90) penetrating the holder (6) for at least partially receiving the terminal (8).

Description

Technical Field

[0001] The present invention relates to a gear motor, in particular to a gear motor used in a cooling system of a motor vehicle. Background Art

[0002] A geared motor for a motor vehicle typically includes an electric motor and a reduction gear housed within a housing. The geared motor may also include a position detector housed within the housing. The position detector is configured to detect the angular position of the electric motor, for example, by determining the gear position of the reduction gear and / or the position of the motor output shaft.

[0003] There is a need to facilitate the connection of a position detector to a gear motor while also providing mechanical protection (particularly against vibration) and electrical protection against electromagnetic interference. Furthermore, there is a need for mechanical and electrical protection of the electrical connection between the position detector and the gear motor. Finally, there is a need for increased compactness of the gear motor, particularly when the gear motor houses the position detector. Summary of the Invention

[0004] The present invention aims to at least partially solve the problems encountered by prior art solutions.

[0005] In this regard, the present invention relates to a bracket for supporting and centering at least one shaft of a reduction gear of a geared motor. The bracket comprises at least two legs. The bracket serves as a support for a first motion transmission element, which is rotatable relative to the bracket and centered about the shaft.

[0006] The bracket includes a recess for accommodating an immovable portion of a position detector. The position detector is configured to detect a motor position of the gear motor and / or a position of at least a portion of a reduction gear. The bracket includes at least one retaining member for securing the immovable portion of the position detector within the recess.

[0007] The bracket is configured to at least partially accommodate at least one (e.g., three) terminals for connecting the immovable portion of the position detector to a control member of the gear motor. The bracket includes at least one recess for retaining the one or more terminals, and / or the bracket includes at least one through-channel extending through the bracket for at least partially accommodating the one or more terminals therein.

[0008] The bracket according to the present invention thus facilitates the electrical and mechanical connection of the position detector to the gear motor while also providing mechanical protection for the position detector. In particular, the position detector is better protected from vibrations. Furthermore, the position detector is better protected from electromagnetic interference, particularly from the gear motor's rotor magnets.

[0009] The electrical connection between the position detector and the gear motor tends to have better mechanical protection and better protection against electromagnetic interference. Ultimately, the compactness of the gear motor is improved while ensuring satisfactory quality of the gear motor, especially ensuring that the reduction gear has a high reduction ratio.

[0010] The present invention may selectively include one or more of the following features, which may be employed individually or in combination with each other.

[0011] According to a particular embodiment, the holding member comprises at least one slide configured to guide translationally the immovable portion of the position detector in the recess.

[0012] According to a particular embodiment, the retaining member comprises at least one retaining hook configured to mechanically engage the immovable part of the position detector to retain it in the recess.

[0013] According to a particular embodiment, the holding member comprises at least two slideways, the immovable part of the position detector being configured to slide relative to the bracket between the at least two slideways.

[0014] Preferably, the slideway is configured to slide the electronic power control, communication and data exchange board of the position detector.

[0015] According to a particular embodiment, the hook is rigidly connected to the bracket.Preferably, the hook is configured to engage with an electronic power control, communication and data exchange board of the position detector by form engagement.

[0016] According to a particular embodiment, the groove for holding the terminal extends along most of the length of the terminal in the longitudinal direction of the terminal.

[0017] According to a particular embodiment, the through-channel at least partially houses a connecting portion of the terminal, which portion is configured to connect the terminal to the immovable part of the detector or to the control member.

[0018] The present invention also relates to a gear motor comprising a motor, a reduction gear, a housing, and the bracket described above. The shaft of the reduction gear serves as a centering shaft for centering a first motion transmission element and a second motion transmission element. The first transmission element and the second transmission element are spaced apart from each other in the longitudinal direction of the shaft. The first transmission element and the second transmission element are rotatable relative to each other.

[0019] The bracket is used to support the second transmission element and the first transmission element. The shaft passes through the bracket. The bracket is located between the first transmission element and the second transmission element in the longitudinal direction of the shaft.

[0020] The bracket serves as a support for the second transmission element and the first transmission element. The shaft passes through the bracket. The bracket is located between the first transmission element and the second transmission element in the longitudinal direction of the shaft.

[0021] According to certain embodiments, the reduction gear comprises a stepped gear train with tangential gears and an output gear. The first transmission element is one of the stepped gears and the output gear. The second transmission element is one of the stepped gears and the output gear. Each stepped gear comprises a coaxial large gear and a coaxial small gear, which are stacked and rigidly connected together for integral rotation. The stepped gears are arranged around parallel axes.

[0022] Preferably, the axis of the step gear is parallel to the output shaft of the electric motor.

[0023] According to a particular embodiment, the position detector comprises a movable magnetic source rigidly connected to the second transmission element and intended to face the recess. The immovable part of the position detector comprises a detection unit configured to detect the movable magnetic source.

[0024] Preferably, the movable magnetic source is a permanent magnet. Preferably, the second transmission element is an output gear of a gear motor.

[0025] According to certain embodiments, the gear motor includes a cover and an electronic control board for the motor located between the motor and the cover. The electronic control board is configured to control the power supply to the motor. The electronic control board is a control member connected to a position detector for detecting the position of the motor.

[0026] According to a particular embodiment, the gear motor comprises a cover at least partially covering a middle portion of the terminal, the middle portion being located between a connection portion for connecting the terminal to the control member and a connection portion for connecting the terminal to the immovable part of the position detector.

[0027] According to certain embodiments, the housing of the gear motor houses the position sensor. When the bracket houses the immovable portion of the position sensor, the position sensor is flush with an edge surface of the bracket. When the bracket houses the immovable portion of the position sensor, the sensor is substantially flush with a flat surface of the bracket.

[0028] The present invention also relates to a method for electrically and mechanically connecting a position detector to the aforementioned gear motor. The method comprises inserting the immovable portion of the position detector into the recess by sliding it into each of the slideways. The method comprises assembling each terminal to a bracket. The method comprises connecting each terminal to a control member and the immovable portion of the position detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be better understood through the description of exemplary embodiments with reference to the accompanying drawings, in which:

[0030] Figure 1 is a schematic perspective partial view of a gear motor according to a first embodiment of the present invention, wherein a housing, a cover, and a second-stage gear of the gear motor are not shown;

[0031] Figure 2 is a schematic exploded view of a bracket, a position detector, and connection terminals of the gear motor according to the first embodiment;

[0032] Figure 3 is a schematic perspective view of a bracket, a position detector, and connection terminals of the gear motor according to the first embodiment, as viewed from below;

[0033] Figure 4 is a schematic view of a gear motor according to a first embodiment, showing an exploded view of a reduction gear;

[0034] Figure 5 is a schematic perspective partial view of a gear motor according to a second embodiment as viewed from above;

[0035] Figure 6 is a schematic perspective partial view of a gear motor according to a second embodiment as viewed from above;

[0036] Figure 7 is a partial perspective view of a bracket of a gear motor according to a second embodiment as viewed from below;

[0037] Figure 8 Shows the connection method between the position detector and the gear motor;

[0038] 9A to 9D An aspect of the recess of the electronic board of the position detector is shown. DETAILED DESCRIPTION

[0039] Identical, similar or equivalent parts in different figures have the same reference numerals to facilitate transition from one figure to another.

[0040] Figure 1 A geared motor 1 is shown for a cooling system of a motor vehicle, typically a car.

[0041] refer to Figures 1 to 6 The gear motor 1 includes a housing 10, a cover 14, a motor 2, a control member 12 for controlling the motor, a reduction gear 3, a position detector 5, a position detector connecting member, and a bracket 6. The gear motor 1 is used to drive a coolant pilot valve, a radiator valve, etc.

[0042] The housing 10 includes side walls, a bottom, and an electrical connector. The housing 10 is configured to accommodate the motor 2 and the reduction gear 3. The cover 14 is configured to seal and close the housing 10. When the position detector 5 is connected to the control member 12 of the motor, the housing 10 accommodates the position detector 5.

[0043] The motor 2 includes a motor shaft 20 and a rotor pinion 21. The motor shaft 20 and the rotor pinion 21 are arranged around a longitudinal axis X1-X1 of the motor shaft 20. The motor 2 is, for example, a brushless DC motor. The motor 2 is configured to drive the reduction gear 3 to rotate.

[0044] refer to Figure 1 and Figure 5 The motor control assembly 12 is comprised of, for example, an electronic board 12 for controlling the motor. Specifically, the control assembly 12 includes components for controlling motor power, components for controlling the motor, and connection and data exchange components. The motor control assembly 12 is located above the motor 2. When connected to the motor 2, it is positioned between the motor 2 and the cover 14.

[0045] The motor control member 12 is configured to control the power supply to the motor 2 according to instructions from a vehicle control unit (not shown). The motor control member 12 is configured to control the position of the motor according to data collected by the position detector 5. In addition, or as an alternative, the control member 12 is configured to transmit this data to the vehicle control unit (not shown).

[0046] Combine Figures 2 to 6 The reduction gear 3 includes a first-stage gear 32, a second-stage gear 34, a third-stage gear 36, and an output gear 38. In each of the illustrated embodiments, the reduction gear set 3 is composed of the stepped gear train 32, 34, 36, and the output gear 38. The reduction gear 3 also includes an input shaft 41, a center shaft 43, and an intermediate shaft 45, around which the stepped gears 32, 34, 36 and the output gear 38 are arranged.

[0047] The reduction gear 3 is configured to reduce the rotational speed of the output end of the reduction gear 3 relative to the output end of the motor 2 and increase the torque of the output end of the reduction gear 3 relative to the output end of the motor 2 .

[0048] Each of the step gears 32 , 34 , 36 and the output gear 38 is a tangentially meshed motion transmission element, and these transmission elements are rotatable relative to each other.

[0049] Each of the stepping gears 32, 34, and 36 includes a gear and a pinion, which are coaxially stacked and rigidly connected to each other so as to rotate as a whole. More specifically, in each of the illustrated embodiments, each of the stepping gears 32, 34, and 36 is a one-piece structure. The pinion of each stepping gear 32, 34, and 36 is mechanically engaged with the gear of one of the stepping gears in the stepping gear train or the gear of the output gear 38.

[0050] The first-stage gear 32 is rotated by the motor 2 around the longitudinal direction X2-X2 of the input shaft 40. The first-stage gear 32 drives the second-stage gear 34 to rotate.

[0051] The second-stage gear 34 rotates around the longitudinal direction X3-X3 of the central axis through the first-stage gear 32. The second-stage gear 34 drives the third-stage gear 36 to rotate.

[0052] The third-stage gear 36 rotates around the longitudinal direction X4-X4 of the intermediate shaft 45 via the second-stage gear 34. The third-stage gear 36 drives the output gear 38 to rotate.

[0053] In each of the illustrated embodiments, the output gear 38 is integrally formed and rotatable about the central axis 43. The bracket 6 spaced the output gear 38 and the secondary gear 34 apart from each other along the longitudinal direction X3-X3 of the central axis 43. The output gear 38 includes a coupling portion configured to mechanically engage with a coupling portion at the output end of the reduction gear 3 by form engagement.

[0054] The axes of the step gears 41, 43, and 45 are parallel to each other. The axes of the step gears 41, 43, and 45 are also parallel to the motor shaft 20. The input shaft 40 is used to center the first-stage gear 32 of the reduction gear. The center shaft 43 is used to center the second-stage gear 34 and the output gear 38. The intermediate shaft 45 is used to center the third-stage gear 36.

[0055] refer to Figures 1 to 6 The position detector 5 includes an immovable portion 51 and a movable source. The position detector 5 is configured to detect the angular position of the motor 2 of the gear motor 1 and / or the angular position of at least a portion of the reduction gear 3. In the first illustrated embodiment, the position detector 5 includes a magnetically sensitive probe, such as a Hall effect sensor 56.

[0056] In each embodiment shown, the position detector 5 detects the angular position of the output gear 38. The motor electronic board 12 determines the angular position and angular velocity of the motor 2 based on the detected angular position of the output gear 38 to drive the motor 2.

[0057] In each of the illustrated embodiments, the immovable portion 51 of the position detector is composed of the position detector electronic board 52. The position detector electronic board 52 is composed in particular of a printed circuit and a Hall effect sensor 56 assembled thereon. When the immovable portion 51 of the position detector is connected to the motor electronic board 12, it is located in the recess 65 of the bracket.

[0058] The immovable part 51 of the position detector forms the position detector detection unit. The immovable part 51 of the position detector forms in particular means for controlling the power supply of the position detector and connection and data exchange means of the position detector.

[0059] In each of the illustrated embodiments, the movable source is a movable magnetic source, such as a permanent magnet, which is attached to the output gear 38. When the movable source faces the Hall effect sensor 56, the immovable portion 51 of the position detector detects the movable source.

[0060] The connection members of the position detector include terminals 8, for example, three terminals for power supply, ground, and signal of the position detector 5. Each terminal 8 mechanically and electrically connects the electronic board 52 of the detector to the electronic board 12 of the motor. Each terminal 8 includes a first connection portion 81, an intermediate portion 83, and a second connection portion 85.

[0061] The first connection portion 81 is used to connect the terminal 8 to the motor's electronic board 12. The second connection portion 85 is used to connect the terminal 8 to the position detector's electronic board 52. The middle portion 83 is located between the first connection portion 81 and the second connection portion 85 and mechanically and electrically connects the two.

[0062] In both illustrated embodiments, the first connecting portion 81 forms the lower connecting portion of the terminal, the middle portion 83 is substantially horizontal, and the second connecting portion 85 forms the upper connecting portion of the terminal. The lower connecting portion 81 of the terminal mechanically engages with the connecting recess 55 of the position detector's electronic board 52. The upper connecting portion 85 of the terminal mechanically engages with the connecting recess of the motor's electronic board 12.

[0063] Combine Figures 2 to 7 The support 6 comprises a base 60, legs 62, a first plate 66, a recess 65 in the immovable part 51 of the detector, a retaining hook 70, a first slide 71 and a second slide 73 of the detector electronic board 52, a groove 92 for accommodating each terminal 8 of the connection member, and a through-channel 90 for each terminal 8. In each of the illustrated embodiments, the support 6 is made in one piece.

[0064] Bracket 6 is used to support and center central shaft 43. It is used to transmit mechanical forces (particularly forces for bending central shaft 43) to housing 10 and to limit vibration of reduction gear 3. Bracket 6 is configured to accommodate immovable portion 51 of position detector 5. Bracket 6 is configured to at least partially accommodate each terminal 8 that connects position detector 5 to motor control member 12.

[0065] In each of the illustrated embodiments, the bracket 6 includes three legs 62. The legs 62 are preferably spaced equidistantly from each other. Each leg 62 extends from the base 60 to the housing and supports the base 60 relative to the housing 10 and the cover 14. The bracket 6 is secured to the housing 10 and / or the cover 14, for example, at the legs 62.

[0066] The base 60 carries a first plate 66. The base 60 contains a second plate 64. The base 60 at least partially defines a recess 65 in the immovable portion 51 of the detector. The base 60 serves to support and center the second stage gear 34 and the third stage gear 36.

[0067] The upper surface S1 and the lower surface S3 of the base are substantially flat and perpendicular to the longitudinal axis X3-X3 of the central axis 43. The upper surface S1 and the lower surface S3 of the base constitute the flat surfaces of the base 60. The base 60 also includes a side surface S5 that radially defines the base relative to the central axis 43. The side surface S5 is the edge surface of the base 60.

[0068] The first plate 66 is provided with a central through hole through which the central shaft 43 extends. The first plate 66 is axially located between the second-stage gear 34 and the output gear 38 relative to the central shaft 43. The first plate 66 is a support plate for supporting the output gear 38.

[0069] The second plate 64 defines the lower surface S3 of the base 60. The second plate 64 is axially located between the second-stage gear 34 and the third-stage gear 36 relative to the central axis 43. The second plate 64 includes a central hole into which the intermediate shaft 45 is inserted. The second plate 64 provides support for the third-stage gear 36.

[0070] When the bracket 6 accommodates the immovable portion 51 of the position detector, the immovable portion 51 of the position detector 5 is flush with the side edge surface S5 of the bracket 6 .

[0071] Referring to each of the illustrated embodiments, when the holder 6 accommodates the immovable portion 51 of the position detector 5 , the immovable portion 51 of the position detector 5 is flush with the lower surface S3 of the base 60 located outside the recess 65 .

[0072] The first slide 71 and the second slide 73 extend from the base 60 to the output gear 38. They are parallel to each other and are configured to slide the immovable part 51 of the position detector relative to the bracket 6 and mechanically engage with the side of the electronic board 52 of the position detector.

[0073] The retaining hook 70 is positioned radially relative to the base 60. It is configured to mechanically engage with the notch-shaped recess 53 on the electronic board 52 of the position detector. The retaining hook 70 is configured to radially fix the electronic board 52 of the position detector relative to the longitudinal axis X3-X3 of the central shaft 43.

[0074] The slideways 71 , 73 and the retaining hook 70 together form a retaining member configured to retain the immovable part 51 of the detector in the recess 65 thereof.

[0075] The outer surface of the bracket 6 includes the same number of retaining grooves 92 as the terminals 8. Each retaining groove 92 extends horizontally in a first portion 92a that receives the middle portion 83 of the corresponding terminal 8. The first portion 92a is located on the upper surface S1 of the base.

[0076] In the first embodiment shown, the first portion 92a extends over the entire length of the terminal intermediate portion 83. Each retaining groove 92 extends vertically in a second portion 92b that receives the upper connection portion 81 of the corresponding terminal 8. The second portion 92b extends to one leg 62 of the bracket, specifically parallel to the longitudinal axis X3-X3 of the central shaft.

[0077] In each of the illustrated embodiments, through-channels 90 extend through the bracket 6, each extending from the upper surface S1 of the base to the lower surface S3 of the base, and facing the connecting recess 55 when the immovable portion 51 of the detector is located in the recess 65. The through-channels 90 accommodate the lower connecting portion 81.

[0078] The retaining groove 92 and the through-channel 90 together form a retaining member configured to retain the terminal 8 relative to the bracket 6 .

[0079] The gear motor 1 according to the second embodiment mainly differs from the gear motor 1 according to the first embodiment in that it includes a cover member 84 that at least partially covers the middle portion 83 of each terminal 8 .

[0080] In the second embodiment shown, the upper connection portion 85 of each terminal is not held by the support 6 because it is not directly assembled to the support 6. The cover 84 covers the middle portion 83 of each terminal 8 located outside the support 6.

[0081] refer to Figure 8The method 100 for electrically and mechanically connecting the position detector 5 to the gear motor 1 comprises a step 101 of inserting the immovable part 51 of the position detector into the recess 65 by sliding it into the slideways 71, 73. After the step 101 of inserting the immovable part 51 of the position detector, the retaining hook 70 is mechanically engaged with the immovable part 51 of the position detector.

[0082] The connection method 100 includes a step 103 of assembling each terminal 8 to the bracket 6 by inserting the terminal 8 into the retaining groove 92 and the through-channel 90. The connection method 100 includes a connection step 105 of connecting the terminal 8 to the immovable part 51 of the detector by inserting the lower connection part 85 into the connection recess 55 on the detector electronic board 52. The connection method 100 includes a connection step 107 of connecting the terminal 8 to the electronic board 12 of the motor by inserting the upper connection part 81 into the connection recess on the electronic board 12 of the motor.

[0083] The connection method 100 is concluded by sealingly assembling the cover 14 to the housing 10 and closing 109 the housing.

[0084] For further aspects of the stent according to the invention, reference will be made to 9A to 9D These aspects can be compared with those in the present application. Figures 1 to 8 Any of the embodiments shown can be used in combination.

[0085] First, as mentioned above, the outer surface of the bracket 6 preferably includes a groove 92 for holding one or more terminals 8. Various alternative embodiments can be used to improve the tool for holding and / or placing terminals and / or positioning terminals by:

[0086] a) First, in the above embodiment, the first portion 92a extends along the entire length of the middle portion 83 of the terminal. Alternatively ( Figure 9A ), the first portion 92a' does not extend along the entire length of the middle portion 83 of the terminal, but extends to cover a small portion thereof, for example, 20% to 60%. Therefore, the longitudinal extension of the terminal guide boss 192'a is also subject to the same limitation, which facilitates the passage of a tool used to hold the terminal when inserting the terminal into the bracket;

[0087] b) and / or a gap (or opening) 194 may be provided on the terminal extension and a portion of the first portion 92a': this facilitates demoulding of the component (it allows the mold portion forming the two slides to pass through) and may facilitate passage of a tool for placing the terminal; Figure 1 、 Figure 2 and Figure 9AAs shown, the gap extends in an oblique direction (not perpendicularly) relative to the direction in which the first portion 92a' of the retaining groove 92 extends, in a plane perpendicular to the longitudinal axis X3-X3 of the central axis 43, which allows for space optimization; it preferably has the shape of a parallelepiped at least in part. The gap can penetrate at least partially in a direction parallel to X3-X3 or the axis 43 (e.g. Figure 9C As shown, the gap leads to the surface where the through-channel 90 opens, and the surface may be provided with guide members 1661, 1662 as described below); Figure 9A As shown, the gap may include an enlarged portion 194 a (along the plane of the longitudinal axis X3 - X3 perpendicular to the central axis 43 ) that is not penetrated and allows the passage of a tool for placing the terminal;

[0088] c) and / or the second portion 92b extending, for example, on the leg 62 of the holder (in particular parallel to the longitudinal axis X3-X3 of the central axis) may be provided with an entry chamfer 192'b (on the side of the terminal to be connected to the board 12), which makes it possible to improve the pre-positioning of the terminal before inserting it into the holder.

[0089] Again, with respect to the recess 65 in the immovable part of the detector, one or more of the following improvements may be made:

[0090] a') Guide members 1661 and 1662 may be provided on the upper portion of the recess 65 ( Figure 9B and Figure 9C ), for example in the form of longitudinally extending ribs, to limit the axial clearance of the immovable part 52 of the detector when it is introduced into the recess 65; to save space, these guides may have different sizes, one guide 1662 being shorter than the other guide 1661, for example, so as to allow, for example, the opening of the through channel 90; b') and / or the device comprises a stop 168, for example a central post, for stopping the movement of the detector in the recess 65, which stop 168 may comprise, for example, chamfers 1681, 1682 on the sides of the central post 168 ( Figure 9C ), so that the immovable part of the detector can rest thereon; these chamfers 1681, 1682 preferably extend parallel to the longitudinal axis X3-X3 of the central shaft 43;

[0091] c') and / or the width of the column 168 is such that it centers the immovable part of the detector;

[0092] d') and / or a centering and / or retaining device may be provided on the head of the clip 70, such as one or more lateral bosses or notches 1701, 1702 ( Figure 9C 、 Figure 9D ), which enables centering and / or holding of the immovable parts of the detector.

[0093] Figure 9D The correct positioning of the immovable portion of the detector 52 in its recess is shown, thanks at least to the presence of the chamfers 1681 , 1682 and the bosses 1701 , 1702 .

[0094] The bracket 6 according to the present invention facilitates the electrical and mechanical connection of the position detector 5 to the gear motor 1, while providing mechanical protection for the position detector 5 and its electrical connection to the gear motor 1, and protecting the position detector 5 and its electrical connection to the gear motor 1 from electromagnetic interference. In particular, the position detector 5 and its electrical connection to the gear motor 1 are better able to withstand vibrations.

[0095] Finally, the compactness of the gear motor 1 is improved while ensuring that the mass is sufficient and the reduction gear 3 has a high reduction ratio. In particular, the reduction gear 3 is more compact than the multi-stage reduction gear of the known structure, while tending to increase the reduction ratio of the reduction gear 3 under the same mass.

[0096] Of course, those skilled in the art can make various modifications to the invention described above while still remaining within the scope of the invention.

[0097] Alternatively, the gear motor 1 is used to drive an electric vehicle such as an electric bicycle, for example.

[0098] Alternatively, the electric motor 2 is, for example, a brushed motor. The electric motor 2 is, for example, a single-phase motor or a three-phase motor.

[0099] Alternatively, the reduction gear 3 includes at least one non-stepped gear, such as two large gears, in addition to the output gear 38 .

[0100] Alternatively, the electronic board 12 of the electric motor is located below the electric motor 2 , between the electric motor 2 and the bottom of the housing 10 .

[0101] Additionally or alternatively, the position detector 5 detects the angular position of another gear 32 , 34 , 36 of the reduction gear 3 other than the output gear 38 .

[0102] Alternatively, the immovable portion 51 of the position detector helps define the upper surface of the bracket 6 by being flush with the upper surface S1 of the base 60 .

[0103] Alternatively, the electronic board 52 of the position detector determines the angular position of the electric motor 2 instead of the electronic board 12 of the electric motor.

[0104] Alternatively, the detector electronic board 52 is configured to control the operation of the position detector 5 , for example by signaling any abnormal operation of the detector 5 .

[0105] Alternatively, the middle portion 83 of the terminal 8 is assembled to the bracket 6 from the lower surface S3 of the base, and at this time, the first portion 92a of the holding groove 92 is located on the lower surface S3 of the base.

[0106] Alternatively, the bracket 6 comprises two legs 62, or the bracket comprises four or more legs 62. Additionally or alternatively, the bracket 6 is fastened to the cover 14.

[0107] Alternatively, the support 6 rests against a side wall of the housing, for example at a base 60 .

[0108] Alternatively, the step 101 of inserting the immovable portion 51 of the position detector into the recess 65 thereof may be performed after the step 103 of assembling each terminal 8 to the support.

[0109] Alternatively, the step 105 of connecting the terminals 8 to the immovable part 51 of the detector may be performed before or simultaneously with the step 107 of connecting the terminals 8 to the electronic board 12 of the motor.

Claims

1. A support (6) for supporting and centering at least one shaft (43) of a reduction gear of a geared motor, said support (6) comprising at least two legs (62), The support (6) serves as a support for a first motion transmission element (34), which is rotatable relative to the support (6) and is centered on an axis (43), the support (6) comprising a recess (65) for accommodating an immovable portion (51) of a position detector (5), the position detector (5) being configured to detect the position of the electric motor (2) of the gear motor (1) and / or the position of at least a portion of the reduction gear (3), The support (6) comprises at least one retaining member (70, 71, 73) configured to retain the immovable portion (51) of the position detector in its recess (65), The support (6) at least partially houses at least one terminal (8) for connecting the immovable part (51) of the position detector to a control member (12) of the gear motor, The support (6) includes at least one groove (92) for holding the terminal, and / or the support (6) includes at least one through-channel (90) passing through the support (6) to at least partially accommodate the terminal (8).

2. The support (6) according to the preceding claim, wherein The retaining member (70, 71, 73) comprises at least one slideway (71, 73) configured to guide translationally the immovable portion (51) of the position detector into its recess (65), and / or The retaining member (70, 71, 73) comprises at least one retaining hook (70) configured to mechanically engage the immovable portion (51) of the position detector to retain the immovable portion in its recess (65).

3. A support (6) according to the preceding claim, wherein The retaining member comprises at least two slideways (71, 73), the immovable part (51) of the position detector being configured to slide relative to the bracket (6) between the slideways (71, 73), the slideways (71, 73) preferably being configured to slide an electronic power control, communication and data exchange board (52) of the position detector, and / or Wherein, the hook (70) is rigidly connected to the bracket (6), the hook (70) being preferably configured to engage with the electronic power control, communication and data exchange board (52) of the position detector by form engagement.

4. The bracket (6) according to claim 2 or 3, wherein: The hook (70) comprises a centering and / or retaining device (1701, 1702), such as at least one centering and / or retaining boss or notch (1701, 1702).

5. A support (6) according to any one of the preceding claims, wherein The recess (65) comprises guiding means, such as one or more guiding ribs (1661, 1662).

6. A support (6) according to any one of the preceding claims, wherein The groove (92) for holding the terminal extends along at least a majority of the length of the terminal (8) in the longitudinal direction of the terminal (8).

7. The support (6) according to any one of claims 1 to 5, wherein The groove (92) for holding the terminal extends along a limited portion of the length of the terminal (8) in the longitudinal direction of the terminal (8), for example, along 20% to 60% of the length.

8. A support (6) according to any one of the preceding claims, wherein The groove (92) for holding the terminal includes a portion provided with one or more chamfers (192'b).

9. A support (6) according to any one of the preceding claims, wherein The through-channel (90) at least partially accommodates a connecting portion (81, 85) of the terminal, the connecting portion being configured to connect the terminal (8) to the immovable portion (51) of the position detector or to the control member (12).

10. The bracket (6) according to any one of the preceding claims, further comprising an opening or gap (194) located in a portion of the groove (92) for retaining the terminal.

11. Bracket (6) according to the preceding claim, said opening or gap (194) at least partially extending through said bracket in a direction parallel to said axis (43) of said reduction gear.

12. The support (6) according to the preceding claim, wherein The opening or gap (194) also includes a non-through portion that is widened relative to the through portion.

13. The support (6) according to one of the preceding claims, wherein The opening or gap extends in an oblique direction relative to the extension direction of the one or more retaining grooves (92) in a plane perpendicular to the longitudinal axis (X3-X3) of the central shaft 43.

14. A support (6) according to any one of the preceding claims, wherein The recess (65) comprises means (168), such as a post, for retaining the position detector in the recess.

15. The support (6) according to the preceding claim, wherein The stop post (168) includes at least one lateral chamfer (1681, 1682).

16. A gear motor (1) comprising an electric motor (2), a reduction gear (3), a housing (10) and a bracket (6) according to any one of the preceding claims, wherein: The shaft (43) of the reduction gear is a centering shaft for centering a first motion transmission element (34) and a second motion transmission element (38), the first transmission element (34) and the second transmission element (38) being spaced apart from each other in the longitudinal direction (X3-X3) of the shaft and being rotatable relative to each other, The bracket (6) serves as a support for the second transmission element (38) and the first transmission element (34), the shaft (43) passes through the bracket (6), and the bracket (6) is located between the first transmission element (34) and the second transmission element (38) relative to the longitudinal direction (X3-X3) of the shaft.

17. Gear motor (1) according to the preceding claim, wherein The reduction gear (3) includes a stepped gear train (32, 34, 36) having tangential gears and an output gear (38), wherein the first transmission element (34) and the second transmission element (38) are respectively one of the stepped gears (32, 34, 36) and the output gear (38). Each stepped gear (32, 34, 36) includes a coaxial large gear and a coaxial small gear, the coaxial large gear and the coaxial small gear being stacked and rigidly connected to each other for integral rotation, the stepped gears (32, 34, 36) being arranged around axes (41, 43, 45) parallel to each other, The shafts (41, 43, 45) of the step gears are preferably parallel to the motor shaft (20) of the electric motor (2).

18. The gear motor (1) according to claim 16 or 17, wherein The position detector (5) comprises a movable magnetic source rigidly connected to the second transmission element (38) and intended to face the recess (65), the immovable part (51) of the position detector comprising a detection unit configured to detect the movable magnetic source, The movable magnetic source is preferably a permanent magnet and / or the second transmission element (38) is preferably the output gear (38) of the gear motor (1).

19. The gear motor (1) according to any one of claims 16 to 18, wherein: The gear motor (1) comprises a cover (14) and an electronic control board (12) of the motor located between the motor (2) and the cover (14), The electronic control board (12) is configured to control the power supply of the electric motor (2), The electronic control board (12) is a control member (12) connected to the position detector (5) to detect the position of the motor (2).

20. Gear motor (1) according to any one of the preceding claims 16 to 19, wherein The gear motor (1) includes a cover member (84) at least partially covering a middle portion (83) of the terminal, the middle portion (83) being located between a connection portion (81) for connecting the terminal to the control member (12) and a connection portion (85) for connecting the terminal to the immovable portion (51) of the position detector.

21. The gear motor (1) according to any one of the preceding claims 16 to 20, wherein The gear motor (1) accommodates a position detector (5) in the housing (10), When the support (6) accommodates the immovable part (51) of the position detector, the position detector (5) is flush with the edge surface (S5) of the support (6), and / or the position detector is substantially flush with the flat surface (S3) of the support (6).

22. A method (100) of electrically and mechanically connecting a position detector to a geared motor (1) according to any one of claims 16 to 21, the method comprising: a step of inserting (101) the immovable part (51) of the position detector into its recess (65), in particular by sliding the immovable part (51) into the at least one slideway (71, 73), and The steps of assembling (103) each terminal (8) to the support (6), and connecting (105, 107) each terminal (8) to the control member (12) and the immovable part (51) of the position detector.

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