Connecting assembly and vehicle steering column connecting structure

By using an interference-fit connecting pin in the steering column connection structure to limit the movement of the connecting bracket, the knocking noise problem during steering column length adjustment is solved, achieving noise reduction and improved strength of the connecting parts.

CN223479122UActive Publication Date: 2025-10-28THYSSENKRUPP PRESTA SHANGHAI
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Patent Information

Application Number
CN202423149351.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-10-28
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

In the prior art, knocking noise is generated when the steering column length is adjusted, which is mainly caused by radial collision between the connecting piece and the C-shaped groove.

Method used

The first and second connecting pins with interference fit are respectively inserted into the front end portion and the mounting portion of the connecting groove to limit the movement tendency of the connecting bracket and avoid noise generation through axial restriction of the connecting piece and the connecting groove.

Benefits of technology

It effectively avoids knocking noise when adjusting the length of the steering column, improves the collapse force and reduces the peak value, and enhances the overall strength of the connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a connecting assembly and a vehicle steering column connecting structure. The connecting assembly comprises a connecting piece, a connecting groove used for being fixed to the steering column and a connecting support. The connecting piece comprises a first connecting pin, a second connecting pin and a fixing part, the first connecting pin and the second connecting pin are fixed on the fixing part, the first connecting pin and the second connecting pin are both circular connecting pins, and the diameter of the first connecting pin is smaller than that of the second connecting pin; the connecting groove comprises a front end part, a mounting part and a crumple part which are sequentially connected, the first connecting pin penetrates through the connecting support, then is inserted into the front end part and is in interference fit with the front end part, the second connecting pin penetrates through the connecting support, then is inserted into the mounting part and is in interference fit with the mounting part, and the fixing part tightly presses the connecting support. Axial limitation of the connecting pin and the connecting groove is added, so that the moving trend of the connecting support towards the connecting groove is limited, and knocking noise is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of vehicle-related technology, and in particular to a connecting component and a vehicle steering column connecting structure. Background Technology

[0002] like Figure 1 As shown, a knocking noise occurs when the steering column of a vehicle is adjusted along its length. This noise is particularly noticeable when changing direction, such as adjusting from the inside out or from the outside in.

[0003] like Figure 1 and Figure 2 As shown, the applicant discovered during the implementation of this utility model that the cause of the knocking noise is: the prior art connects the connecting bracket 2' to the C-shaped groove 4' of the column sleeve 3' through the connector 5' and bolts. When changing the adjustment direction, the clockwise bending torque M transmitted by the adjusting motor 1' is affected. 外 / Counterclockwise bending moment M 内 This causes radial collision between the connecting bracket 2' and the C-groove 4', resulting in knocking noise, where M 内 =F 内 *L, M 外 =F 外 *L, F 内 For counterclockwise force, F 外 The force is counterclockwise, and L is the length. Utility Model Content

[0004] Therefore, it is necessary to provide a connecting component and a vehicle steering column connection structure to address the technical problem that existing technologies produce knocking noise when adjusting the length of the steering column.

[0005] This utility model provides a connection assembly, including: a connector, a connection groove for fixing to a steering column, and a connection bracket;

[0006] The connector includes a first connecting pin, a second connecting pin, and a fixing part. The first connecting pin and the second connecting pin are fixed on the fixing part. Both the first connecting pin and the second connecting pin are circular connecting pins, and the diameter of the first connecting pin is smaller than the diameter of the second connecting pin.

[0007] The connecting groove includes a front end, a mounting part, and a collapsible part connected in sequence. The first connecting pin passes through the connecting bracket and is inserted into the front end, and is in an interference fit with the front end. The second connecting pin passes through the connecting bracket and is inserted into the mounting part, and is in an interference fit with the mounting part. The fixing part presses against the connecting bracket.

[0008] Furthermore, the interference fit between the first connecting pin and the front end is +0.144±0.081 mm.

[0009] Furthermore, the front end portion is a circular groove, the diameter of the first connecting pin is 6.013 to 6.075 mm, and the diameter of the front end portion is 5.85 to 5.95 mm.

[0010] Furthermore, the interference fit between the second connecting pin and the mounting part is +0.12 to 0.28 mm.

[0011] Furthermore, the width of the mounting portion is greater than the width of the collapsible portion.

[0012] Furthermore, the connector also includes a connecting portion that connects the first connecting pin and the second connecting pin.

[0013] Furthermore, the length of the connecting part is 17 to 17.5 mm, and the width of the connecting part is 4 to 4.1 mm.

[0014] Furthermore, the connector is a metal component.

[0015] Furthermore, the connector is a sheet metal part.

[0016] One embodiment of this utility model provides a vehicle steering column connection structure, including: a steering column and a connection assembly as described above, wherein the connection groove is fixed to the tube wall of the column sleeve of the steering column.

[0017] This invention inserts the first connecting pin and the second connecting pin of the connector into the front end and the mounting part of the connecting groove, respectively, and makes an interference fit with the front end and the mounting part. By increasing the axial restriction between the connecting pin and the connecting groove, the tendency of the connecting bracket to move into the connecting groove is restricted, thus avoiding knocking noise. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the existing steering column structure;

[0019] Figure 2 Analysis of impact noise in existing technologies;

[0020] Figure 3 This is a schematic diagram of the structure of a connecting component according to an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of a connector according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the connector from another direction according to an embodiment of the present invention;

[0023] Figure 6 This is a side view of a connector according to an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the connecting groove according to an embodiment of the present invention;

[0025] Figure 8 This is an enlarged schematic diagram of the connecting groove according to an embodiment of the present invention.

[0026] Marker description

[0027] 1' Adjusting motor; 2' Connecting bracket; 3' Column sleeve; 4' C-groove; 5' Connecting piece; 1. Connecting piece; 11. First connecting pin; 12. Second connecting pin; 13. Fixing part; 14. Connecting part; 2. Connecting groove; 21. Front end; 22. Mounting part; 23. Collapsible part; 3. Connecting bracket; 4. Column sleeve; 5. Bolt. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0029] like Figure 3 The present invention illustrates a connecting assembly according to an embodiment of the present invention, comprising: a connector 1, a connecting groove 2 for fixing to a steering column, and a connecting bracket 3;

[0030] The connector 1 includes a first connecting pin 11, a second connecting pin 12, and a fixing part 13. The first connecting pin 11 and the second connecting pin 12 are fixed on the fixing part 13. Both the first connecting pin 11 and the second connecting pin 12 are circular connecting pins, and the diameter of the first connecting pin 11 is smaller than the diameter of the second connecting pin 12.

[0031] like Figure 7 and Figure 8 As shown, the connecting groove 2 includes a front end portion 21, a mounting portion 22, and a collapsible portion 23 connected in sequence. The first connecting pin 11 passes through the connecting bracket 3 and is inserted into the front end portion 21 and is in an interference fit with the front end portion 21. The second connecting pin 12 passes through the connecting bracket 3 and is inserted into the mounting portion 22 and is in an interference fit with the mounting portion 22. The fixing portion 13 presses against the connecting bracket 3.

[0032] Specifically, connector 1, connecting bracket 3, and connecting slot 2 are connected sequentially. For example, Figures 4 to 6As shown, the connector 1 is provided with two circular connecting pins, namely a first connecting pin 11 and a second connecting pin 12, which are fixed to the fixing part 13. The first connecting pin 11 is a small connecting pin, and the second connecting pin 12 is a large connecting pin, that is, the diameter of the first connecting pin 11 is smaller than the diameter of the second connecting pin 12.

[0033] Both the first connecting pin 11 and the second connecting pin 12 are interference-fitted with the connecting groove 2. For example... Figure 7 As shown, the connecting groove 2 is fixed to the column sleeve 4 of the steering column. The connecting groove 2 is an elongated groove, comprising three parts in sequence: a front end portion 21, a mounting portion 22, and a collapsible portion 23. The front end portion 21 receives and fixes the first connecting pin 11; specifically, the first connecting pin 11 passes through the connecting bracket 3 and is inserted into the front end portion 21 with an interference fit. The mounting portion 22 receives and fixes the second connecting pin 12; specifically, the second connecting pin 12 passes through the connecting bracket 3 and is inserted into the mounting portion 22 with an interference fit. The collapsible portion 23 is used to collapse and absorb energy when the connecting pin deforms the connecting groove 2.

[0034] Preferably, the connecting groove is a C-shaped groove.

[0035] Finally, the two connecting pins of the connector 1 pass through the connecting bracket 3 and are pressed against the connecting bracket 3 by the fixing part 13, thereby restricting the tendency of the connecting bracket 3 to move into the connecting groove 2 and avoiding knocking noise.

[0036] In some embodiments, a bolt 5 is also included, which passes through the connecting bracket 3 and is bolted to the connecting groove 2.

[0037] This invention inserts the first connecting pin and the second connecting pin of the connector into the front end and the mounting part of the connecting groove, respectively, and makes an interference fit with the front end and the mounting part. By increasing the axial restriction between the connecting pin and the connecting groove, the tendency of the connecting bracket to move into the connecting groove is restricted, thus avoiding knocking noise.

[0038] like Figures 3 to 7 As shown, another embodiment of the present invention provides a connecting assembly, including: a connector 1, a connecting groove 2 for fixing to a steering column, and a connecting bracket 3;

[0039] The connector 1 includes a first connecting pin 11, a second connecting pin 12, a fixing part 13, and a connecting part 14 connecting the first connecting pin 11 and the second connecting pin 12. The first connecting pin 11 and the second connecting pin 12 are fixed on the fixing part 13. Both the first connecting pin 11 and the second connecting pin 12 are circular connecting pins, and the diameter of the first connecting pin 11 is smaller than the diameter of the second connecting pin 12. The connector 1 is a metal part, preferably a sheet metal part.

[0040] The connecting groove 2 includes a front end portion 21, a mounting portion 22, and a collapsible portion 23 connected in sequence. The first connecting pin 11 passes through the connecting bracket 3 and is inserted into the front end portion 21, and is press-fitted with the front end portion 21. The second connecting pin 12 passes through the connecting bracket 3 and is inserted into the mounting portion 22, and is press-fitted with the mounting portion 22. The fixing portion 13 presses against the connecting bracket 3, wherein:

[0041] The interference fit between the first connecting pin 11 and the front end portion 21 is +0.144 ± 0.081 mm (i.e., +0.063 mm to +0.225 mm). The front end portion 21 is a circular groove. The diameter of the first connecting pin 11 is 6.013 to 6.075 mm, and the diameter of the front end portion 21 is 5.85 to 5.95 mm.

[0042] The interference fit between the second connecting pin 12 and the mounting part 22 is +0.12 to 0.28 mm;

[0043] The width of the mounting portion 22 is greater than the width of the collapsible portion 23;

[0044] The length of the connecting part 14 is 17 to 17.5 mm, and the width of the connecting part 14 is 4 to 4.1 mm.

[0045] Specifically, the interference fit between the existing first connecting pin 11 and the front end 21 is -0.001, so the first connecting pin 11 and the front end 21 are clearance fit, which may cause the connecting bracket 3 to collide with the connecting groove 2, resulting in knocking noise.

[0046] In this embodiment, the interference fit between the first connecting pin 11 and the front end portion 21 is +0.144±0.081 mm. Therefore, the first connecting pin 11 and the front end portion 21 are in an interference fit. Compared with the prior art where the first connecting pin and the front end portion are in a clearance fit, the interference fit increases the axial restriction between the first connecting pin 11 and the front end portion 21, thereby limiting the tendency of the connecting bracket to move into the connecting groove and avoiding knocking noise.

[0047] The design of this embodiment is beneficial to improving the collapse force and reducing the value of the first peak value.

[0048] Meanwhile, the width of the mounting portion 22 of the connecting groove 2 is slightly larger than the width of the collapsible portion 23. Therefore, the second connecting pin 12 will not be unable to collapse smoothly due to excessive interference fit between the pin and the hole, thus allowing the collapse to begin normally. And since the width of the collapsible portion 23 is slightly smaller than the width of the mounting portion 22, the stability of the collision can be guaranteed, meeting the requirements of the collision curve.

[0049] In addition, a connecting portion 14 is provided between the first connecting pin 11 and the second connecting pin 12 to enhance the overall strength of the connector 1.

[0050] Finally, connector 1 is a metal part. Preferably, connector 1 is a sheet metal part. The material of connector 1 is mainly iron, and also includes copper (Cu), molybdenum (Mo), carbon (C), nickel (Ni) and other elements.

[0051] This embodiment avoids knocking noise by using an interference fit between the first connecting pin and the front end, and an interference fit between the second connecting pin and the mounting part. Simultaneously, by setting the interference fit between the first connecting pin and the front end, the crumple force is improved, reducing the value of the first peak value when crumple occurs. By setting the width of the mounting part to be greater than the width of the crumple portion, the stability of the collision is ensured, meeting the requirements of the collision curve. Finally, by adding a connecting part, the overall strength of the connector is strengthened.

[0052] like Figures 3 to 8 As shown, the present invention provides a vehicle steering column connection structure, comprising: a steering column and a connection assembly as described above, wherein the connection groove 2 is fixed to the tube wall of the column sleeve 4 of the steering column.

[0053] Specifically, the connecting groove 2 is fixed to the tube wall of the column sleeve 4 of the steering column. The connector 1, the connecting bracket 3, and the connecting groove 2 are connected in sequence. The first connecting pin 11 passes through the connecting bracket 3 and is inserted into the front end 21 and is press-fitted with the front end 21. The second connecting pin 12 passes through the connecting bracket 3 and is inserted into the mounting part 22 and is press-fitted with the mounting part 22.

[0054] This invention inserts the first connecting pin and the second connecting pin of the connector into the front end and the mounting part of the connecting groove, respectively, and makes an interference fit with the front end and the mounting part. By increasing the axial restriction between the connecting pin and the connecting groove, the tendency of the connecting bracket to move into the connecting groove is restricted, thus avoiding knocking noise.

[0055] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A connection component, characterized in that, include: Connector (1), connecting groove (2) for fixing to the steering column, and connecting bracket (3); The connector (1) includes a first connecting pin (11), a second connecting pin (12), and a fixing part (13). The first connecting pin (11) and the second connecting pin (12) are fixed on the fixing part (13). The first connecting pin (11) and the second connecting pin (12) are both circular connecting pins, and the diameter of the first connecting pin (11) is smaller than the diameter of the second connecting pin (12). The connecting groove (2) includes a front end (21), a mounting part (22), and a collapsible part (23) connected in sequence. The first connecting pin (11) passes through the connecting bracket (3) and is inserted into the front end (21) and is in an interference fit with the front end (21). The second connecting pin (12) passes through the connecting bracket (3) and is inserted into the mounting part (22) and is in an interference fit with the mounting part (22). The fixing part (13) presses the connecting bracket (3).

2. The connection component according to claim 1, characterized in that, The interference fit between the first connecting pin (11) and the front end (21) is +0.144 ± 0.081 mm.

3. The connection component according to claim 1, characterized in that, The front end portion (21) is a circular groove, the diameter of the first connecting pin (11) is 6.013 to 6.075 mm, and the diameter of the front end portion (21) is 5.85 to 5.95 mm.

4. The connection component according to claim 1, characterized in that, The interference fit between the second connecting pin (12) and the mounting part (22) is +0.12 to 0.28 mm.

5. The connection component according to claim 1, characterized in that, The width of the mounting portion (22) is greater than the width of the collapsible portion (23).

6. The connection component according to claim 1, characterized in that, The connector (1) further includes a connecting portion (14) that connects the first connecting pin (11) and the second connecting pin (12).

7. The connecting component according to claim 6, characterized in that, The length of the connecting part (14) is 17 to 17.5 mm, and the width of the connecting part (14) is 4 to 4.1 mm.

8. The connection component according to claim 1, characterized in that, The connector (1) is a metal part.

9. The connection component according to claim 8, characterized in that, The connector (1) is a sheet metal part.

10. A vehicle steering column connection structure, characterized in that, include: The steering column and the connection assembly as described in any one of claims 1 to 9, wherein the connection groove (2) is fixed to the wall of the column sleeve (4) of the steering column.