DE102020206200A1 - Bearing for a chassis component of a vehicle and chassis component with such a bearing - Google Patents

Abstract

The invention relates to a bearing (1, 21) for a chassis component (9) of a vehicle with an inner sleeve (2, 22) and an outer sleeve (3), with an elastomer layer between the inner sleeve (2, 22) and the outer sleeve (3) (4) is arranged, and with at least one magnet (10) for interaction with a magnetic field sensor (11). In order to ensure a sufficiently strong magnetic field (12) emanating from the at least one magnet (10) in the area of the magnetic field sensor (11), the bearing (1, 21) is characterized by at least one magnetic field conductor (14, 15; 26, 27) for reinforcement and / or for directed guiding of a magnetic field (12) of the at least one magnet (10).

Description

The invention relates to a bearing for a chassis component of a vehicle with an inner sleeve and an outer sleeve, an elastomer layer being arranged between the inner sleeve and the outer sleeve, and with at least one magnet for interaction with a magnetic field sensor. The invention also relates to a chassis component with such a bearing.

Such a camp is from the DE 102 21 873 A1 known. Here, two magnets are arranged on the inner sleeve by means of a suitably designed and additional fastening device. A magnetic field sensor for interaction with the magnets is assigned to the outer sleeve of the bearing. Here, a recess is formed in the elastomer layer in the area between the magnets and the magnetic field sensor.

Alternatively, it is conceivable that an elastomer material of the elastomer layer is arranged between the at least one magnet and the magnetic field sensor. Furthermore, embodiments are conceivable in which the at least one magnet is arranged in the area of a first side of the bearing and the magnetic field sensor is arranged in the area of a second side of the bearing facing away from the first side.

There is a risk here that the magnetic field strength of the at least one magnet is not sufficiently strong, at least in the area of the magnetic field sensor. This can lead to undesirable inaccuracies when determining a change in the magnetic field.

The object on which the invention is based is to further develop a bearing and / or a chassis component of the type mentioned at the outset in such a way that a sufficiently strong magnetic field emanating from the at least one magnet is ensured in the area of the magnetic field sensor. In particular, an alternative embodiment is to be provided.

The object on which the invention is based is achieved with a bearing according to claim 1 and by means of a chassis component according to claim 10. Preferred developments of the invention can be found in the subclaims and in the following description.

The bearing is designed for a chassis component of a vehicle, in particular a motor vehicle. A chassis component can be a handlebar, a handlebar component, a wheel carrier, a tie rod, an axle carrier or the like. The bearing can be arranged in the chassis component, preferably in a bearing receptacle of the chassis component. In particular, the bearing is or is mounted or arranged in a chassis of a vehicle. Bearings in the chassis are preferably used to connect chassis components in an articulated manner to one another or to the vehicle body or an axle carrier attached to it.

The bearing has an inner sleeve and an outer sleeve. In particular, the inner sleeve and / or the outer sleeve is formed from metal or aluminum. The inner sleeve and / or the outer sleeve can be designed at least essentially in the manner of a hollow cylinder. An elastomer layer, in particular made of an elastomer material, is arranged between the inner sleeve and the outer sleeve. The bearing is preferably designed as a rubber bearing. Such a rubber mount can, for. B. can be used or used as an articulated or rotatable fastening of the chassis component on a vehicle body, a vehicle body or axle carrier. Furthermore, the bearing has at least one magnet for interaction with a magnetic field sensor.

In particular, the at least one magnet and the magnetic field sensor are part of a sensor device. The sensor device can be designed as an angle measuring device. The angle measuring device can furthermore have an evaluation unit which evaluates the data from the magnetic field sensor. In particular, an angle and / or a rotation of the inner sleeve in relation to the outer sleeve and / or to the chassis component can be detected and / or determined by means of the angle measuring device. This can be used to determine level information of the chassis and / or the vehicle body in relation to a roadway.

The outer sleeve can be fastened, in particular pressed in, in the bearing receptacle of the chassis component. The bearing has at least one magnetic field conductor for amplifying and / or for directed guidance of a magnetic field of the at least one magnet.

The advantage here is that, due to the at least one magnetic field conductor, the magnetic field of the at least one magnet can be directed at least partially in a targeted manner in the direction of the magnetic field sensor. As a result, the magnetic field can be strengthened at least in the area of the magnetic field sensor. A change in the magnetic field of the at least one magnet can thus be determined by means of the magnetic field sensor with greater accuracy and / or reliability.

The at least one magnetic field conductor is preferably at least partially or completely arranged in the elastomer layer. In particular, the at least one magnetic field conductor is at least partially or completely embedded in an elastomer material of the elastomer layer. The elastomer layer is preferably designed as a rubber layer and the elastomer material as a rubber material. With a partial embedding of the at least one magnetic field conductor in the elastomer material of the elastomer layer, two edges of the magnetic field conductor facing away from one another can protrude from the elastomer layer in the axial direction to a central longitudinal axis of the bearing.

In particular, the elastomer layer is ring-like or ring-shaped. A space between the outer sleeve and the inner sleeve is preferably completely filled with the elastomer material of the elastomer layer.

The magnetic field from the at least one magnet is preferably guided and / or directed at least partially in the direction of the magnetic field sensor by means of the at least one magnetic field conductor. The at least one magnetic field conductor can thus influence the magnetic field of the at least one magnet in such a way that the magnetic field is intensified in the area of the magnetic field sensor.

According to a development, the bearing has a first magnetic field conductor and a further, in particular a second, magnetic field conductor. Alternatively, a single magnetic field conductor or more than two magnetic field conductors can be arranged in the bearing. In particular, the at least one magnetic field conductor is designed as an independent component or as an independent component for the bearing and / or for forming the bearing.

According to a further embodiment, the first magnetic field conductor and the further magnetic field conductor are designed mirror-symmetrically to one another. In particular, the first magnetic field conductor and the further magnetic field conductor are arranged mirror-symmetrically to a cross-sectional plane of the bearing. The cross-sectional plane can extend in the axial direction of a central longitudinal axis of the bearing. The central longitudinal axis preferably lies in the cross-sectional plane. In particular, the cross-sectional plane extends through the at least one magnet and through the magnetic field sensor. The two magnetic field conductors arranged mirror-symmetrically to one another preferably cause a mirror-symmetrical deformation or contour of the magnetic field.

According to a further development, the at least one magnetic field conductor is guided, starting from a first side of the bearing, around the inner sleeve and around a through opening of the inner sleeve in the direction of a second side of the bearing facing away from the first side. In particular, the at least one magnetic field conductor is arranged completely in the elastomer layer in relation to its alignment transversely or at right angles to the central longitudinal axis of the bearing and is embedded in the elastomer material. The at least one magnetic field conductor is preferably arranged and / or embedded in the elastomer layer in such a way that it touches neither the outer sleeve nor the inner sleeve. A first end or a first edge of the at least one magnetic field conductor can face a first region of an inside of the outer sleeve. A second end facing away from the first end or the first edge or facing away from the second edge of the at least one magnetic field conductor can face a second area of the inside of the outer sleeve facing away from the first area. In cross section, in particular at right angles to the axial longitudinal extent of the central longitudinal axis of the bearing, the at least one magnetic field conductor can be configured in the manner of a wave crest.

Preferably, by means of the at least one magnetic field conductor, the magnetic field is guided and / or directed starting from a first side of the bearing around a through opening of the inner sleeve at least partially in the direction of a second side of the bearing facing away from the first side, the first side of the bearing being the at least a magnet and the magnetic field sensor is assigned to the second side of the bearing. Here, the at least one magnet and / or the magnetic field sensor can be arranged outside the bearing, in particular on or in the chassis component. Alternatively, the at least one magnet and / or the magnetic field sensor can be designed as a component of the bearing. For example, the at least one magnet or the magnetic field sensor can be partially or completely arranged and / or received in the outer sleeve of the bearing. Furthermore, the at least one magnet or the magnetic field sensor can be arranged in or on the inner sleeve.

According to a further embodiment, the at least one magnetic field conductor is designed as an intermediate sleeve or an intermediate sleeve element. In particular, the magnetic field conductor is formed from a magnetic field-conducting material. When the magnetic field conductor is designed as an intermediate sleeve or as an intermediate sleeve element, the magnetic field conductor can effect a stiffening of the bearing. The magnetic field conductor can thus assume a double function. On the one hand, the at least one magnetic field conductor strengthens and / or directs the magnetic field of the at least one magnet. In addition, the magnetic field conductor can act as a conventional intermediate sleeve or as an intermediate sleeve element and thereby lead to a stiffening of the bearing. Due to the arrangement of the at least one magnetic field conductor in the Elastomer layer, this can lead to a division of the elastomer layer into an inner elastomer layer arranged radially to the central longitudinal axis of the bearing and an outer elastomer layer.

According to a further embodiment, the at least magnetic field conductor is arranged between an outside of the inner sleeve and an inside of the outer sleeve, the at least one magnet having a first end, in particular a first edge, of the magnetic field conductor and the magnetic field sensor having a second end facing away from the first end, in particular a second end Edge, the magnetic field conductor is assigned. The at least one magnet is preferably arranged and held on or in the inner sleeve. In this exemplary embodiment, the magnetic field sensor can be arranged on or in the area of the outer sleeve. In particular, the inner sleeve has a through opening extending in the axial direction to the central longitudinal axis of the bearing. The chassis component or the bearing can be connected to a further chassis component or a vehicle body or axle carrier by means of the through opening. In addition, the inner sleeve can have at least one cavity in which the at least one magnet is arranged or held.

A chassis component with a bearing according to the invention is particularly advantageous, the bearing being arranged in a bearing receptacle and / or being pressed into the bearing receptacle. The magnetic field sensor can be arranged in or on the chassis component. In particular, a connector device has the magnetic field sensor, the connector device being held at least positively and / or non-positively on the chassis component and / or on the bearing, in particular on or in the area of an outside of the outer sleeve.

The chassis component is preferably developed in accordance with the configurations explained in connection with the inventive bearing described here.

• 1 eine geschnittene Seitenansicht eines erfindungsgemäßen ersten Lagers, und
• 2 eine perspektivische Seitenansicht eines erfindungsgemäßen weiteren Lagers.

The invention is explained in more detail below with reference to the figures. Here, the same reference symbols relate to the same, similar or functionally identical components or elements. Show it:

• 1 a sectional side view of a first bearing according to the invention, and
• 2 a perspective side view of a further bearing according to the invention.

1 shows a sectional side view of a first bearing according to the invention 1 . The warehouse 1 has an inner sleeve 2 and an outer sleeve 3 on. The inner sleeve 2 and the outer sleeve 3 are formed from a metal in this embodiment. Between the inner sleeve 2 and the outer sleeve 3 is an elastomer layer 4th made of an elastomer material 5 arranged. Thus the elastomer layer connects 4th an inside 6th the outer sleeve 3 with an outside 7th the inner sleeve 2 . Here is the elastomer material 5 on the one hand on the inside 6th and on the other hand on the outside 7th vulcanized.

The warehouse 1 is in a warehouse 8th a chassis component 9 arranged or pressed in. The inventory 8th is in this embodiment as a through opening in the chassis component 9 educated. Furthermore is the chassis component 9 realized in this embodiment as a handlebar for a chassis of a motor vehicle.

The warehouse 1 has a magnet in this embodiment 10 on. In this embodiment, the magnet is 10 in the outer sleeve 3 arranged. The magnet 10 works with a magnetic field sensor 11th together. The magnetic field sensor 11th is designed as a Hall sensor in this embodiment. Furthermore, in this exemplary embodiment, there is the magnetic field sensor 11th on the chassis component 9 and in the area or adjacent to the bearing receptacle 8th arranged. The magnetic field sensor 11th is equipped with an evaluation unit, not shown here, for evaluating the data from the magnetic field sensor 11th connectable.

Furthermore are the magnet 10 and the magnetic field sensor 11th in this embodiment on two sides facing away from each other or opposite sides of the bearing 1 or in the area of the warehouse 1 arranged. So is the magnet 10 a first page of the camp 1 assigned while the magnetic field sensor 11th a second side of the bearing facing away from the first side 1 assigned. Here is between the magnet 10 and the magnetic field sensor 11th the inner sleeve 2 arranged. Starting from the magnet 10 extends a magnetic field 12th up to the area of the magnetic field sensor 11th . The magnetic field 12th is here only schematically by means of magnetic field lines 13th indicated. For a better overview, not all magnetic field lines are 13th provided with a reference number.

The warehouse 1 has a first magnetic field conductor in this embodiment 14th and a second magnetic field conductor 15th on. The magnetic field conductor 14th , 15th are for amplifying and / or for directed guidance of the magnetic field 12th of the magnet 10 in the elastomer layer 4th arranged. By means of the magnetic field conductor 14th , 15th becomes the magnetic field 12th at least partially from the magnet 10 in the direction of the magnetic field sensor 11th directed or directed. This creates the magnetic field 12th in the area of the magnetic field sensor 11th reinforced. Thereby the determinability a change in the magnetic field due to an articulated movement and / or rotation of the bearing 1 , especially the inner sleeve 2 in relation to the outer sleeve 3 and / or the chassis component 11th , improved.

The magnetic field conductor 14th , 15th are made of a material that conducts magnetic fields. Furthermore, the magnetic field conductors 14th , 15th designed mirror-symmetrically to each other and mirror-symmetrically to each other in the camp 1 arranged. In this embodiment, the magnetic field conductors 14th , 15th mirror-symmetrical to a cross-sectional plane 16 of the camp 1 arranged. The cross-sectional plane 16 extends in the axial direction of a central longitudinal axis 17th of the camp 1 . The central longitudinal axis falls here 17th with the cross-sectional plane 16 together. Furthermore, the cross-sectional plane extends 16 through the magnet 10 and the magnetic field sensor 11th .

The magnetic field conductor 14th respectively. 15th is starting from the first side of the camp 1 with the magnet 10 around the inner sleeve 2 and around the through opening 18th the inner sleeve 2 around in the direction of the second side of the bearing facing away from the first side 1 or in the direction of the magnetic field sensor 11th guided. This creates the magnetic field 12th at least partially or become individual magnetic field lines 13th starting from the first side of the bearing around the inner sleeve 2 around towards the second side of the camp 1 directed. At least individual magnetic field lines follow here 13th the shape or contour of the magnetic field conductor 14th , 15th .

The magnetic field conductor 14th , 15th also form an intermediate sleeve for the bearing 1 . Here the magnetic field conductor forms 14th a first intermediate sleeve element and the magnetic field conductor 15th a second intermediate sleeve element. Because of the magnetic field conductor 14th , 15th becomes the elastomer layer 4th at least in some areas in a radial to the central longitudinal axis 17th arranged inner elastomer layer 19th and outer elastomer layer 20th divided up. Due to the additional function of the magnetic field conductor 14th , 15th as an intermediate sleeve or intermediate sleeve elements, a stiffening of the bearing results 1 .

2 shows a perspective side view of a further bearing according to the invention 21 . The same features have the same reference symbols as before. In this respect, reference is also made to the preceding description.

Instead of an inner sleeve 2 becomes an inner inner sleeve here 22nd used in the form of a hollow profile. The inner sleeve 22nd In this exemplary embodiment, it has an approximately rectangular cross-sectional circumference. The inner sleeve 22nd or the hollow profile has a plurality of cavities in this exemplary embodiment 23 on. For the sake of clarity, not all of the cavities are shown 23 provided with a reference number. Here the inner sleeve 22nd or the hollow profile has four cavities 23 on. In a cavity 23 is a magnet 10 arranged.

The elastomer layer 4th is in this embodiment by means of two elastomer sections 24 , 25th educated. The elastomer sections 24 , 25th are on two sides of the inner sleeve facing away from each other 22nd between the outer sleeve 3 and the inner sleeve 22nd arranged. The elastomer sections 24 , 25th are essentially web-like. Alternatively, the elastomer layer 4th ring-like or ring-shaped according to the embodiment in 1 be trained.

In the area of an outside of the outer sleeve 3 is a magnetic field sensor 11th arranged.

Furthermore, the camp 21 a first magnetic field conductor 26th and a second magnetic field conductor 27 on. The magnetic field conductor 26th respectively. 27 is in this embodiment between an outside 7th the inner sleeve 22nd and an inside 6th the outer sleeve 3 arranged.

List of reference symbols

1

camp

2

Inner sleeve

3

Outer sleeve

4th

Elastomer layer

5

Elastomeric material

6th

inside

7th

Outside

8th

Stock taking

9

Chassis component

10

magnet

11th

Magnetic field sensor

12th

Magnetic field

13th

Magnetic field line

14th

Magnetic field conductor

15th

Magnetic field conductor

16

Cross-sectional plane

17th

Central longitudinal axis

18th

Through opening

19th

inner elastomer layer

20th

outer elastomer layer

21

camp

22nd

Inner sleeve

23

cavity

24

Elastomer section

25th

Elastomer section

26th

Magnetic field conductor

27

Magnetic field conductor

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 10221873 A1 [0002]

Claims (10)

Bearing for a chassis component (9) of a vehicle with an inner sleeve (2, 22) and an outer sleeve (3), an elastomer layer (4) being arranged between the inner sleeve (2, 22) and the outer sleeve (3), and with at least a magnet (10) for interaction with a magnetic field sensor (11), characterized by at least one magnetic field conductor (14, 15; 26, 27)) for amplifying and / or for directed guidance of a magnetic field (12) of the at least one magnet (10). Camp after Claim 1 , characterized in that the at least one magnetic field conductor (14, 15) is arranged at least partially or completely in the elastomer layer (4) and / or that the at least one magnetic field conductor (14, 15) is at least partially or completely in an elastomer material of the elastomer layer (4 ) is embedded. Camp after Claim 1 or 2 , characterized in that by means of the at least one magnetic field conductor (14, 15; 26, 27) the magnetic field (12) is at least partially guided and / or directed from the at least one magnet (10) in the direction of the magnetic field sensor (11). Bearing according to one of the preceding claims, characterized by a first magnetic field conductor (14; 26) and a further, in particular second, magnetic field conductor (15; 27). Camp after Claim 4 , characterized in that the first magnetic field conductor (14; 26) and the further magnetic field conductor (15; 27) are designed mirror-symmetrically to one another and / or are arranged mirror-symmetrically to a cross-sectional plane (16) of the bearing (1), the cross-sectional plane (16) preferably extends ) in the axial direction of a central longitudinal axis (17) of the bearing (1) and / or by the at least one magnet (10) and by the magnetic field sensor (11). Bearing according to one of the preceding claims, characterized in that the at least one magnetic field conductor (14, 15) starting from a first side of the bearing (1) around the inner sleeve (2) and around a through opening (18) in the inner sleeve (2) Direction of a second side of the bearing (1) facing away from the first side is guided. Bearing according to one of the preceding claims, characterized in that by means of the at least one magnetic field conductor (14, 15) the magnetic field (10) starting from a first side of the bearing (1) around a through opening (18) of the inner sleeve (2) in the direction a second side of the bearing (1) facing away from the first side is guided and / or directed, the first side of the bearing (1) being the at least one magnet (10) and / or the second side of the bearing (1) being the magnetic field sensor ( 11) is assigned. Bearing according to one of the preceding claims, characterized in that the at least one magnetic field conductor (14, 15) is designed as an intermediate sleeve or an intermediate sleeve element. Camp according to one of the Claims 1 until 4th , characterized in that the at least one magnetic field conductor (14, 15; 26, 27) is arranged between an outer side (7) of the inner sleeve (2, 22) and an inner side (6) of the outer sleeve (3), the at least one magnet (10) is assigned to a first end of the magnetic field conductor (14, 15; 26, 27) and the magnetic field sensor (11) is assigned to a second end of the magnetic field conductor (14, 15; 26, 27) facing away from the first end, in particular the at least one Magnet (10) held on or in the inner sleeve (22) and the magnetic field sensor (11) is arranged on or in the area of the outer sleeve (3). Chassis component with a bearing (1, 21) according to one of the preceding claims, wherein the bearing (2, 21) is arranged in a bearing receptacle (8) and / or is pressed into the bearing receptacle (8).

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