Motor support for fastening a motor to an assembly, assembly and vehicle seat

Abstract

The invention relates to a motor support (300) for fastening a motor (210) to an assembly (200) for a seat, in particular to an assembly (200) of a vehicle seat. The motor support (300) has a support body (310) with a motor receiving space (320) in which the motor (210) can be clamped. The invention further relates to an assembly (200) for a seat, in particular a vehicle seat, having at least one gear unit (240) and a motor support (300) having a support body (310) and a motor (210) clamped in the motor receiving space (320) of the support body (310), and to a vehicle seat (100) having such an assembly (200).

Description

[0001] Adient US LLC, Plymouth, Ml (US)

[0002] Engine mount for attaching an engine to an assembly, assembly and vehicle seat

[0003] The invention relates to a motor mount for fastening a motor, in particular an electric motor, to an assembly, in particular a drive assembly, as well as to such an assembly and a vehicle seat.

[0004] State of the art

[0005] Traditionally, motors, such as electric motors, are attached to an assembly, such as a drive assembly, via a modified motor housing using a plurality of connecting elements, such as clamps and / or screw elements. Due to the connecting elements, the assemblies comprise a large number of parts. Using identical parts (identical motors, identical connecting elements) in similar assemblies is not possible.

[0006] Task

[0007] The invention is based on the object of providing a motor mount which makes it possible to attach any motors, in particular electric motors, to different assemblies largely independently of shape and / or dimensions, and to provide such an assembly, in particular a drive assembly, and a corresponding vehicle seat.

[0008] Solution The object is achieved according to the invention by a motor mount for fastening a motor to an assembly for a seat, in particular to an assembly of a vehicle seat, the motor mount having a support body with a motor receiving space into which the motor can be clamped.

[0009] Because the motor mount has a support body with a motor mounting space into which the motor can be clamped, any motor, especially electric motors, can be attached to various assemblies using the motor mount, regardless of shape and / or dimensions. This requires little or no connecting elements.

[0010] The motor mount can be used to attach an electric motor to an assembly, in particular a drive assembly. The motor mount can have at least one support body with at least one motor receiving space and an assembly connection interface. The support body can be designed to be flexible and / or adjustable so that the motor can be variably clamped in the motor receiving space.

[0011] The advantages achieved with the motor mount consist in particular in saving on connecting elements, costs, production times, and assembly times. Because the support body is designed to be flexible and / or adjustable, no new calculations, in particular validations, and no modifications to the motor, the assembly, and / or a housing of the motor and / or the assembly are necessary in the case of assembly variants. The same motor and / or the same motor mount can be used for different assemblies. Motors from different manufacturers and / or with different dimensions and / or shapes can be combined with a plurality of assemblies such as drive devices, for example spindle drives for the longitudinal and / or height adjustment of a seat and / or other components, using the motor mount according to the invention.

[0012] The motor mount according to the invention can be designed as an adapter. The support body can be substantially hollow-cylindrical. The support body can be designed as a sleeve and / or as a hollow ring. The support body can be designed as a clamping body or a clamp. The support body can be designed as an annular body, wherein an assembly connection interface is preferably arranged on one end face of the support body. A receiving opening, for example an insertion opening or plug-in opening, leading to the motor receiving space can be arranged on an end face of the support body opposite the assembly connection interface.

[0013] The motor receiving space and the assembly connection interface can be integrated into the carrier body, thereby enabling the attachment of various motors, for example, round motors and / or electric motors, to a drive device. In other words, the carrier body, in particular a carrier body designed as a housing, can have an integrated sleeve for receiving the motor and an integrated interface for connecting the motor to a drive device.

[0014] Preload required to hold the motor in position, for example, in the axial direction, can be created by an additional clamping element. The clamping element can be, for example, a metal clamp, a plastic clamp, a screw, a wire spring, a leaf spring, or another connecting and / or clamping part. The clamping element can be designed to adjust the support body such that the motor can be clamped in the motor mounting space.

[0015] The support body can have at least two support legs for clamping the motor. A clamping element can be provided to generate a preload that clamps the motor. The clamping element can preload the two support legs towards one another. The clamping element can be a clamp, a screw, a wire spring, or a leaf spring. Alternatively, the preload can also be generated without an additional clamping element, in that the support body, in particular at least two support legs, can also generate the preload itself. The support body can be flexible and, for example, be designed in the form of a collar or ring that can be pushed apart. The preload can be generated by the collar or the ring itself, with the support body acting as a spring. The support body can, for example, be made of plastic and can be tensioned due to the flexibility of the plastic.

[0016] The motor mount can have at least one securing recess for receiving a securing rib of the motor. The motor mount can have multiple securing recesses. By selecting at least one securing recess from the multiple securing recesses, the motor can be mounted in different positions, particularly angular positions. For example, the motor can have exactly one securing rib and the motor mount exactly four securing recesses, so that the securing rib can be selectively inserted into one of the four different securing recesses, thus allowing the motor to be mounted in different angular positions.

[0017] The securing recesses can be positioned around an axis, for example, a motor output shaft. The securing recesses can be spaced apart from one another. The securing recesses can be equidistant from one another.

[0018] The support body of the motor mount may have at least one recess for ventilation of the motor. Multiple ventilation recesses may be positioned around an axis, for example, a motor output shaft.

[0019] The motor mount can have an assembly connection interface for connecting the motor mount to the assembly. The motor mount, in particular the assembly connection interface of the motor mount, can have a transmission housing or at least one housing part of a transmission housing. Furthermore, the object is achieved by an assembly, in particular a drive device, comprising at least one transmission unit and a motor mount according to the invention for fastening a motor to the transmission unit, as well as a vehicle seat having at least one assembly according to the invention for adjusting the vehicle seat, in particular for adjusting a longitudinal adjustment device or a height adjustment kinematics.

[0020] Figures and embodiments of the invention

[0021] The invention is explained in more detail below with reference to advantageous embodiments illustrated in the figures. However, the invention is not limited to these embodiments. They show:

[0022] Fig. 1 : a schematic representation of a vehicle seat according to the invention with a longitudinal adjustment device,

[0023] Fig. 2: a front view of an engine mount according to the invention for attaching an engine to an assembly,

[0024] Fig. 3: a perspective view of the engine mount from Fig. 2,

[0025] Fig. 4: another perspective view of an engine mount from Fig. 2,

[0026] Fig. 5: an assembly according to the invention, in particular a drive assembly, with at least one gear unit and a motor mount according to the invention, as well as a motor attached to the assembly by means of the motor mount,

[0027] Fig. 6: a perspective view of an assembly according to the invention with several modifications of the motor mount according to the invention from Fig. 2 and a motor clamped in the motor mount, shown in only one perspective view,

[0028] Fig. 7: a perspective view of the assembly from Fig. 5,

[0029] Fig. 8: another perspective view of the assembly from Fig. 5,

[0030] Fig. 9: another perspective view of the assembly of Fig. 5, with the motor mount according to the invention of Fig. 2 removed,

[0031] Fig. 10: a further perspective view of the assembly from Fig. 5, wherein the motor mount according to the invention from Fig. 2 is cut along a plane P and only the part of the motor mount arranged behind the plane P is shown,

[0032] Fig. 11: a perspective view of a motor, in particular an electric motor and / or a round motor, in particular mountable on a motor support according to the invention, and

[0033] Fig. 12: schematically different alignment positions (angular positions) of a motor in a motor mount according to the invention.

[0034] Corresponding parts are provided with the same reference numerals in all figures.

[0035] An assembly 200 according to the invention with an engine mount 300 according to the invention can be used to optimize a vehicle seat basically known from the prior art to form a vehicle seat 100 according to the invention. The vehicle seat 100 shown schematically in Figure 1 is described below using three spatial directions running perpendicular to one another. In a vehicle seat 100 installed in the vehicle, a longitudinal direction x runs largely horizontally and preferably parallel to a vehicle longitudinal direction that corresponds to the normal direction of travel of the vehicle. A transverse direction y running perpendicular to the longitudinal direction x is likewise oriented horizontally in the vehicle and runs parallel to a vehicle transverse direction. A vertical direction z runs perpendicular to the longitudinal direction x and perpendicular to the transverse direction y.In a vehicle seat 100 installed in a vehicle, the vertical direction z preferably runs parallel to a vehicle vertical axis. Unless otherwise specified, the vehicle seat 100 is constructed mirror-symmetrically to a plane perpendicular to the transverse direction y.

[0036] The vehicle seat 100 has a seat part 102 and a backrest 104 arranged, in particular pivotably, on the seat part 102. To connect the backrest 104 to the seat part 102, the vehicle seat 100 can comprise a fitting 106, in particular an adjustment fitting, rotary fitting, locking fitting, or wobble fitting.

[0037] The vehicle seat 100 has a longitudinal adjustment device 110. The longitudinal adjustment device 110 comprises a rail arrangement 112 with a first rail element 114 and a second rail element 116. The first rail element 114 is adjustable relative to the second rail element 116, in particular in the longitudinal direction x. The first rail element 114 is fastened to the seat part 102. The second rail element 116 can be fastened to a structural element of a vehicle, for example, a vehicle floor.

[0038] In the embodiment shown in Fig. 1, the first rail element 114 is a so-called upper rail 114. This upper rail 114 (also called a guide rail or slide) is assigned to the seat part 102 of the vehicle seat 100 and is configured to support this vehicle seat 100. The second rail element 116 is a so-called lower rail 116 in the embodiment shown in Fig. 1. The lower rail 116 can, for example, be firmly connected to the floor of a vehicle.

[0039] For driving, in particular for adjusting, the longitudinal adjustment device 110 and / or a height adjustment kinematics (not shown in detail), such as a height adjustment kinematics known from DE 102023 121 350 A1, an assembly 200 driven by a motor 210, for example a drive assembly or a drive device, can be provided. The assembly 200 can, for example, be a spindle drive 220 shown in Figures 7 to 10.

[0040] In order to be able to attach different types of motors 210 (as shown in Figures 5 to 12), which differ from one another, for example, in their dimensions and / or shapes, to the assembly 200, the assembly 200 comprises a motor mount 300 according to the invention. Furthermore, the motor mount 300 according to the invention enables the motor 210 to be mounted in different orientation positions, in particular angular positions (relative to a motor output shaft 216 of the motor 210) relative to the motor mount 300.

[0041] The position and direction specifications used, such as radial, axial, and circumferential direction, refer, unless otherwise stated, to the motor output shaft 216 of the motor 210. Radial means perpendicular to the motor output shaft 216. Axial means in the direction of or parallel to the motor output shaft 216.

[0042] The spindle drive 220 shown in Figures 7 to 10 has a worm shaft 222 connected to the motor output shaft 216 or formed by the motor output shaft 216. The worm shaft 222 engages a worm gear 224, which is rotatably mounted in a gear housing 242 of a gear unit 240. The worm gear 224 is non-rotatably connected to a spindle nut 226, into which a threaded spindle 228 is screwed. A spindle eye 229 is provided at one end of the threaded spindle 228 for fastening the threaded spindle 228 to a component, in particular to a component of the vehicle seat 100.

[0043] The transmission housing 242 is fixed to or in a connecting part 230, in this case a fastening bracket 232. The connecting part 230 serves to connect the transmission unit 240 to a component of the vehicle seat 100. For this purpose, the fastening bracket 232 has at least one opening 233. A transmission housing cover 244 closes a housing part of the transmission housing 242, which can be a component of the motor mount 300. The transmission housing 242 is held in a form-fitting manner in the preferably U-shaped fastening bracket 232. For this purpose, the fastening bracket 232 can be closed with a striking plate 234, in particular two legs of the fastening bracket 232 can be connected to one another by means of the striking plate 234. The threaded spindle 228 is guided through the striking plate 234 by means of a bushing 236 inserted in the striking plate 234.

[0044] By energizing the motor 210, the worm shaft 222 rotates the worm gear 224 and, with it, the spindle nut 226, so that the threaded spindle 228 is moved relative to the spindle nut 226. This allows a distance between the mounting bracket 232 and the spindle eye 229 to be adjusted.

[0045] Figure 2 shows a front view (in this case, viewed in a direction parallel to the motor output shaft 216 of the motor 210) of a motor mount 300 according to the invention for fastening the motor 210 to an assembly 200. By fastening the motor 210 to the assembly 200, the motor 210 becomes a component of the assembly 200. The motor mount 300 is provided for fastening a motor, in this case the motor 210, in particular an electric motor, to an assembly, in this case the assembly 200. Assembly 200 can be understood as conventional drive devices and adjustment devices.

[0046] The motor mount 300 comprises at least one support body 310. The support body 310 is equipped with at least one motor receiving space 320 and an assembly connection interface 330.

[0047] The support body 310 is designed to be flexible and / or adjustable such that the motor 210 can be clamped in the motor receiving space 320. Because the support body 310 is designed to be flexible and / or adjustable for clamping the motor 210, any motor 210, in particular electric motors, can be attached to the motor support 300 regardless of shape and / or dimensions. The motor support 300 can be attached to different assemblies 200.

[0048] The support body 310 has a hollow cylindrical region for accommodating a motor 200. The motor-accommodating space 320 of the support body 310 can, for example, be substantially circular or oval. The support body 310 can be a sleeve body and / or annular body. The support body 310 can be designed as a clamping body or a clamp.

[0049] The assembly connection interface 330 can be arranged on a first end face 312 of the carrier body 310. A receiving opening 322 or insertion opening leading to the motor receiving space 320 can be arranged on a second end face 314 of the carrier body 310 opposite the assembly connection interface 330.

[0050] The carrier body 310 can be designed to be closed at least in sections on the first end face 312. The carrier body 310 can have a motor connection interface 340 on the first end face 312.

[0051] For the preload required to hold the motor 210, that is to say in particular a motor body, in position by frictional force, for example in the axial direction, the carrier body 310 can be designed to be flexible, in particular reversibly flexible, and / or adjustable.

[0052] The carrier body 310 can be formed at least in sections from metal and / or plastic.

[0053] The support body 310 has an interruption 316. The interruption 316 enables the support body 310, in particular the motor receiving space 320, to be clamped, for example, by pressing or widening, and the support body 310, in particular the motor receiving space 320, to be clamped, for example, by pressing or narrowing. The interruption 316 is arranged between two support legs 318.1, 318.2 of the support body 310. The interruption 316 allows the two support legs 318.1, 318.2 to be moved away from one another and / or towards one another in order to adapt the motor receiving space 320 to a shape and / or dimension of the motor 210 when the motor 210 is inserted or introduced into the motor receiving space 320 through the receiving opening 322.

[0054] The two support legs 318.1, 318.2 of the support body 310 are formed by the interruption 316, for example, in the form of ring sections. When the motor 210 is located in the motor receiving space 320, the support legs 318.1, 318.2 spring toward their initial position until the support legs 318.1, 318.2 enclose the motor 210.

[0055] The support legs 318.1, 318.2 can be formed as a single piece. The support body 310 can be formed in multiple parts, wherein two support legs 318.1, 318.2 can be connected to one another, for example, via a hinge (not shown in detail).

[0056] The support legs 318.1, 318.2 can form a support collar or support ring interrupted on one side. The preload can be generated by the collar or the ring itself, with the support body 310 acting as a spring.

[0057] In the exemplary embodiment, the support legs 318.1, 318.2 are clamped, for example, pulled together, by a clamping element 350. This allows the preload of the support body 310 to be variably adjusted and the clamping force to be increased. The axial fixation of the motor 210 is achieved, for example, by frictional force, optionally supplemented by a positive connection between the motor 210 and the support body 310.

[0058] As shown in Figures 5 to 7, the respective support leg 318.1, 318.2 of the support body 310 has a clamping bridge 318.3, 318.4 at its end, for example in the form of a clamping bridge or clamping sleeve. The support legs 318.1, 318.2 can be clamped to one another via the clamping bridges 318.3, 318.4 by means of the clamping element 350, here in the form of a clamp 352 and / or a metal clip. Figure 6 shows, by way of example, three different clamping elements 350 that can be used optionally. One of the clamping elements 350 can be a plastic wedge 354 with a wedge recess 354.1, wherein both clamping bridges 318.3, 318.4 can be received or are received in the wedge recess 354.1. Further clamping elements 350 can be differently shaped wire springs 356 (two alternative wire springs 356 are shown in Figure 6), which can each clamp both clamping bridges 318.3, 318.4 towards each other, for example pulling or pushing.Alternatively, clamping elements 350 designed as screws can also be used.

[0059] In a further development of the exemplary embodiment, the motor 210 can comprise a number of connection features. Axial fixation of the motor 210 can be achieved, for example, by a feature present on the motor 210, such as a connection element formed as a flange, cutout, or projection. In this case, the carrier body 310 can be provided with further corresponding connection elements. Furthermore, an additional clamping element or clamping element can be attached to the carrier body 310 to maintain the axial force.

[0060] The motor mount 300 can be provided as an adapter part. The motor mount 300 can be used to attach a motor 210 to various mechanisms.

[0061] The carrier body 310 has a number of recesses 360, for example for ventilation of the motor 210.

[0062] The support body 310 can be designed for common motor diameters. Motors 210 from various manufacturers with smaller or larger outer diameters can be mounted between a motor housing and an inner surface of the support body 310 using an additional spacer 370 (schematically shown in Figure 2). The spacer 370 can be a sleeve, a ring, and / or a sealing element. The spacer 370, for example in the form of a spacer element, in particular a rubber spacer, can also be used to decouple the motor 210 from the rest of the mechanism and improve acoustic performance.

[0063] The motor 210 can be mounted in various directions without having to change or modify the support body 310. The motor 210 has at least one securing rib 212, also called an anti-rotation rib, to prevent rotation. In the support body 310, in particular on the closed first end face 312, at least one, preferably several, corresponding securing recesses 380 are provided, which are configured to correspond to the at least one securing rib 212 of the motor 210 in order to keep the motor 210 secured against rotation in the support body 310.

[0064] The motor 210 can have a number of securing ribs 212 to prevent rotation. The motor 210 shown in Figure 11 has exactly one securing rib 212. A number of securing recesses 380 can already be provided in the support body 310, in particular on the closed first end face 312, which are designed to correspond to the securing ribs 212 of the motor 210 in order to secure the motor 210 in the support body 310 against rotation. By specifically selecting a securing recess 380 from a plurality of securing recesses 380, the motor 210 can be mounted in different angular positions (relative to a motor output shaft 216 of the motor 210) relative to the motor support 300. The motor 210 can thus be mounted in different alignment positions (angular positions) on the carrier body 310 without the carrier body 310 having to be changed or modified.

[0065] Figures 5 to 10 each show an assembly 200, in particular a drive assembly, in this case a spindle drive 220, with at least one gear unit 240, a motor 210, and a motor mount 300 for fastening the motor 210 to the gear unit 240. By mounting the motor 210 to the motor mount 300, the motor 210 becomes a component of the assembly 200. As shown in Figures 5 to 10, the assembly connection interface 330 can have a gear unit receptacle 332 for receiving and coupling to the gear unit 240. The gear unit receptacle 332 can form a housing part of the gear housing 242, so that part of the gear housing 242 is integrated into the motor mount 300. The assembly connection interface 330 and the support body 310 can be formed as a single piece. For example, the carrier body 310 and the assembly connection interface 330 can be manufactured in an injection molding process.

[0066] Figure 12 schematically shows different alignment positions P1.1 to P1.n of a motor 210 in a motor mount 300 according to the invention.

[0067] For example, there are several possible alignment positions P1.1 to P1.n, particularly mounting positions, for arranging and aligning the motor 210 in the support body 310. Further securing recesses 380 are formed in the support body 310 to mount the motor 210 in different angular positions (relative to the motor output shaft 216) without further modifying the motor housing and / or the motor 210. This allows a motor connector 214 of the motor 210 to be oriented differently.

[0068] List of reference symbols

[0069] vehicle seat

[0070] Seat part

[0071] backrest

[0072] fitting

[0073] Longitudinal adjustment device

[0074] Rail arrangement first rail element (top rail) second rail element (bottom rail)

[0075] module

[0076] Motor

[0077] securing rib

[0078] Motor connector

[0079] Engine output shaft

[0080] spindle drive

[0081] Worm shaft

[0082] Worm gear

[0083] spindle nut

[0084] threaded spindle

[0085] spindle eye

[0086] connecting part

[0087] Mounting bracket

[0088] opening

[0089] Strike plate

[0090] socket

[0091] Gear unit

[0092] Gearbox housing

[0093] Gearbox cover

[0094] engine mount

[0095] Carrier body 312 first end face

[0096] 314 second front side

[0097] 316 Interruption

[0098] 318.1 , 318.2 Beam legs

[0099] 318.3, 318.4 tension bridge

[0100] 320 engine compartment

[0101] 322 receiving opening

[0102] 330 module connection interface

[0103] 332 Gear unit mount

[0104] 340 Motor connection interface

[0105] 350 clamping element

[0106] 352 bracket

[0107] 354 plastic wedge

[0108] 354.1 Wedge recess

[0109] 356 wire spring

[0110] 360 recess

[0111] 370 spacers

[0112] 380 safety recess

[0113] E plane, cutting plane (Fig. 10)

[0114] P1.1 to P1.n alignment position x longitudinal direction z vertical direction

Claims

Patent claims 1 . Motor support (300) for fastening a motor (210) to an assembly (200) for a seat, in particular to an assembly (200) of a vehicle seat (100), the motor support (300) comprising a support body (310) with a motor receiving space (320) into which the motor (210) can be clamped.

2. Motor mount (300) according to claim 1, characterized in that the support body (310) is flexible and / or adjustable.

3. Motor support (300) according to claim 1 or 2, characterized in that the support body (310) has at least two support legs (318.1; 318.2) for clamping the motor (210).

4. Motor mount (300) according to at least one of claims 1 to 3, characterized by a clamping element (350) for generating a preload clamping the motor (210).

5. Motor support (300) according to claim 3 and 4, characterized in that the clamping element (350) pre-tensions the two support legs (318.1; 318.2) towards one another.

6. Motor mount (300) according to claim 4, characterized in that the clamping element (350) is a clamp (352), a screw, a wire spring (356) or a leaf spring.

7. Motor support (300) according to at least one of claims 1 to 6, characterized in that the motor support (300) has at least one securing recess (380) for receiving a securing rib (212) of the motor (210).

8. Motor mount (300) according to at least one of claims 1 to 7, characterized in that the motor mount (300) has a plurality of securing recesses (380), and by selecting at least one securing recess (380) from the plurality of securing recesses (380), the motor (210) can be mounted in different angular positions.

9. Motor support (300) according to at least one of claims 1 to 8, characterized in that the support body (310) has at least one recess (360) for ventilation of the motor (210).

10. Motor mount (300) according to at least one of claims 1 to 9, characterized in that the motor mount (300) has an assembly connection interface (330) for connecting the motor mount (300) to the assembly (200).

11. Motor mount (300) according to at least one of claims 1 to 9, characterized in that the motor mount (300) has a gear housing (242) or at least one housing part of a gear housing (242).

12. Assembly (200) for a seat, in particular a vehicle seat (100) with at least one gear unit (240), a motor (210) and a motor mount (300) according to at least one of claims 1 to 11.

13. Assembly (200) according to claim 12, characterized in that the assembly (200) is a spindle drive (220) or has a spindle drive (220).

14. Vehicle seat (100), comprising at least one assembly (200) according to at least one of claims 12 to 13 for adjusting the vehicle seat (100).

15. Vehicle seat (100) according to claim 14, characterized by an assembly (200) for adjusting a longitudinal adjustment device (110) or a height adjustment kinematics of the vehicle seat (100).

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