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CN-121990038-A - Steering housing and vehicle steering system

CN121990038ACN 121990038 ACN121990038 ACN 121990038ACN-121990038-A

Abstract

The application belongs to the technical field of vehicle steering systems, and discloses a steering shell and a vehicle steering system. The steering housing includes a long housing, an end housing, and a reinforcing assembly. The motor comprises a long shell, an end shell, a reinforcing component and a reinforcing component, wherein the long shell extends along a first direction, the end shell is connected to one end of the long shell in the first direction, the end shell comprises a connecting surface and a mounting surface which are arranged along a second direction, the connecting surface is connected with the long shell, the mounting surface is used for mounting a motor, the first direction is perpendicular to the second direction, the reinforcing component comprises a first connecting rib and a second connecting rib, the first connecting rib and the second connecting rib are arranged on one side of the long shell, which faces the mounting surface, and are connected to the long shell and the connecting surface, and the first connecting rib and the second connecting rib are symmetrically arranged relative to the second direction and are respectively arranged at an acute angle with the second direction. The application has the advantages of light weight and small shaking on the basis of higher structural strength.

Inventors

  • HAO XIN
  • WEI DAI
  • YU JIEMING
  • Ma Aiteng
  • QIN GAOFENG

Assignees

  • 立昇智能科技(上海)有限公司

Dates

Publication Date
20260508
Application Date
20260327

Claims (18)

  1. 1. Steering casing, its characterized in that includes: a long housing extending in a first direction; The end shell is connected to one end of the long shell in the first direction and comprises a connecting surface and a mounting surface which are arranged along the second direction, the connecting surface is connected with the long shell, the mounting surface is used for mounting a motor, and the first direction and the second direction are perpendicular; the reinforcing component comprises a first connecting rib and a second connecting rib, the first connecting rib and the second connecting rib are arranged on one side of the long shell, facing the mounting surface, and are connected with the long shell and the connecting surface, and the first connecting rib and the second connecting rib are symmetrically arranged relative to the second direction and are respectively arranged at acute angles with the second direction.
  2. 2. The steering housing of claim 1, wherein the reinforcement assembly further comprises a third connecting rib disposed on a side of the elongated housing facing away from the mounting surface and connected to the elongated housing and the connecting surface.
  3. 3. The steering housing of claim 2, wherein the third connecting bar is disposed at an angle to the second direction.
  4. 4. The steering housing according to claim 1, wherein the first connecting rib is disposed on one side of a preset plane, an included angle a between the first connecting rib and the preset plane is set on the other side of the preset plane, an included angle b between the second connecting rib and the preset plane is set at an angle b which is greater than or equal to 50 ° and less than or equal to 75 °, and the preset plane is a plane where the axis of the long housing and the axis of the motor are located.
  5. 5. The steering housing of claim 1, wherein the reinforcement assembly further comprises a first reinforcing rib, the first reinforcing rib is disposed on a side of the first connecting rib facing away from the motor, at least a portion of the first reinforcing rib is disposed at an angle to the first connecting rib, one end of the first reinforcing rib is connected to the connecting surface, the other end of the first reinforcing rib is connected to the first connecting rib, and a surface of the first reinforcing rib facing the long housing is connected to the long housing; And/or, reinforcing assembly still includes the second strengthening rib, the second strengthening rib is located the second connecting rib deviates from one side of motor, the second strengthening rib at least part with the second connecting rib is the contained angle setting, just the one end of second strengthening rib connect in the junction surface, the other end connect in the second strengthening rib, the second strengthening rib orientation the surface of long casing with long casing is connected.
  6. 6. The steering housing of claim 5, wherein the first reinforcing rib has an angle c with the first connecting rib of at least 30 degrees, and the second reinforcing rib has an angle d with the second connecting rib of at least 30 degrees.
  7. 7. The steering housing of claim 5, wherein the first stiffener extends in a straight direction; And/or the second reinforcing ribs extend along a straight line direction.
  8. 8. The steering housing of claim 5, wherein the first stiffener includes a first rib portion and a second rib portion bent and connected to the first rib portion, the first rib portion extending in the first direction, an end of the second rib portion facing away from the first rib portion being connected to the first connecting rib, the second rib portion being disposed at an angle to the first connecting rib; And/or, the second reinforcing rib comprises a third rib part and a fourth rib part which is bent and connected to the third rib part, the third rib part extends along the first direction, one end, deviating from the third rib part, of the fourth rib part is connected with the second connecting rib, and the fourth rib part and the second connecting rib are arranged in an included angle.
  9. 9. The steering housing according to claim 5, wherein at least one surface in a thickness direction of the first reinforcing rib is provided with a first groove or a first through hole, and at least one surface in a thickness direction of the second reinforcing rib is provided with a second groove or a second through hole.
  10. 10. The steering housing according to any one of claims 1 to 9, wherein the thickness of the first connecting rib is greater than or equal to 4mm, and/or the thickness of the second connecting rib is greater than or equal to 4mm.
  11. 11. The steering housing according to any one of claims 1 to 9, wherein an angle between a side surface in a thickness direction of the first connecting rib and a height direction of the first connecting rib is r1,4.5 ° or less r1 or less 5.5 °, and/or an angle between a side surface in a thickness direction of the second connecting rib and a height direction of the second connecting rib is r2,4.5 ° or less r2 or less 5.5 °.
  12. 12. The steering housing according to any one of claims 1 to 9, wherein the height of the first connecting rib is gradually or stepwise reduced in a direction in which the long housing faces away from the end housing; And/or, the height of the second connecting rib is gradually reduced or stepwise reduced along the direction of the long shell facing away from the end shell.
  13. 13. The steering housing according to any one of claims 1 to 9, wherein a surface of the first connecting rib facing away from the long housing is provided as a first inclined surface, the first inclined surface being a flat surface or a curved surface, and/or a surface of the second connecting rib facing away from the long housing is provided as a second inclined surface, the second inclined surface being a flat surface or a curved surface.
  14. 14. The steering housing of any one of claims 1-9, wherein the length direction of the first and second connection bars is the first direction, and the length of the first and second connection bars is greater than the characteristic length of the motor, and the characteristic length of the motor is a maximum distance between the stator and rotor of the motor and the mounting surface in the first direction.
  15. 15. The steering housing according to any one of claims 1 to 9, wherein an end of the first connecting rib adjacent to the connecting surface extends to an edge of the connecting surface in a radial direction of the long housing, and/or an end of the second connecting rib adjacent to the connecting surface extends to an edge of the connecting surface in a radial direction of the long housing.
  16. 16. The steering housing according to any one of claims 1 to 9, wherein a first extension rib is connected to an end of the first connection rib facing away from the connection surface, the first extension rib being connected to the long housing, and/or a second extension rib is connected to an end of the second connection rib facing away from the connection surface, the second extension rib being connected to the long housing.
  17. 17. The steering housing according to any one of claims 1 to 9, wherein at least one surface in the thickness direction of the first connecting rib is provided with a third groove or a third through hole, and/or at least one surface in the thickness direction of the second connecting rib is provided with a fourth groove or a fourth through hole.
  18. 18. A vehicle steering system comprising a steering housing according to any one of claims 1to 17, and further comprising a motor mounted to the mounting surface with an axial direction of the motor being the first direction.

Description

Steering housing and vehicle steering system Technical Field The invention relates to the technical field of vehicle steering systems, in particular to a steering shell and a vehicle steering system. Background An automotive steering system is used to convert a steering intention (turning steering wheel) of a driver into an actual steering action of wheels and to ensure portability, accuracy and safety of steering. The steering shell is an important part of the automobile steering system, and the structural strength of the steering shell directly influences the reliability and safety of the automobile steering system. In the related art, the region where the steering casing is provided with the motor is easy to deform and the like to fail, so that the structural strength of the region where the steering casing is provided with the motor needs to be enhanced to improve the modal performance, and the modal performance of the whole steering assembly can avoid the frequency of the front subframe. In some structure reinforcing structures, a conical reinforcing structure is arranged in the area of the steering casing corresponding to the motor so as to realize the overall thickening of the local area of the steering casing, and thus, the overall rigidity of the steering casing can be improved. But the conical reinforcement results in a larger radial dimension of the steering housing root, i.e. a greater weight of the steering housing, and a greater resultant jitter. Disclosure of Invention One aspect of the application provides a steering casing to solve the technical problem of large shake caused by large weight of the steering casing. The application also provides a vehicle steering system which occupies smaller space on the basis of ensuring higher structural strength. The technical scheme adopted by the application is as follows: A steering housing comprising: a long housing extending in a first direction; The end shell is connected to one end of the long shell in the first direction and comprises a connecting surface and a mounting surface which are arranged along the second direction, the connecting surface is connected with the long shell, the mounting surface is used for mounting a motor, and the first direction and the second direction are perpendicular; the reinforcing component comprises a first connecting rib and a second connecting rib, the first connecting rib and the second connecting rib are arranged on one side of the long shell, facing the mounting surface, and are connected with the long shell and the connecting surface, and the first connecting rib and the second connecting rib are symmetrically arranged relative to the second direction and are respectively arranged at acute angles with the second direction. In one or more embodiments of the present application, the reinforcing component further includes a third connecting rib, where the third connecting rib is disposed on a side of the long housing facing away from the mounting surface and is connected to the long housing and the connecting surface. In one or more embodiments of the present application, the third connecting rib is disposed at an angle with respect to the second direction. In one or more embodiments of the present application, the first connecting rib is disposed on one side of a preset plane, an included angle between the first connecting rib and the preset plane is a, the second connecting rib is disposed on the other side of the preset plane, an included angle between the second connecting rib and the preset plane is b, a is greater than or equal to 50 degrees and less than or equal to 75 degrees, b is greater than or equal to 50 degrees and less than or equal to 75 degrees, and the preset plane is a plane where the axis of the long housing and the axis of the motor are located. In one or more embodiments of the present application, the reinforcing component further includes a first reinforcing rib, where the first reinforcing rib is disposed on a side of the first connecting rib facing away from the motor, at least a portion of the first reinforcing rib is disposed at an included angle with the first connecting rib, one end of the first reinforcing rib is connected to the connecting surface, the other end of the first reinforcing rib is connected to the first connecting rib, and a surface of the first reinforcing rib facing toward the long housing is connected to the long housing; And/or, reinforcing assembly still includes the second strengthening rib, the second strengthening rib is located the second connecting rib deviates from one side of motor, the second strengthening rib at least part with the second connecting rib is the contained angle setting, just the one end of second strengthening rib connect in the junction surface, the other end connect in the second strengthening rib, the second strengthening rib orientation the surface of long casing with long casing is connected. In one or more embodiments of the present