Seat lock hook mounting structure and vehicle body structure

Abstract

This application provides a seat lock hook mounting structure and a vehicle body structure. The seat lock hook mounting structure includes a lock hook assembly and a lock hook mounting bracket. The lock hook mounting bracket includes a main body and several mounting portions extending peripherally from the main body. The main body has a lock hook positioning portion. The several mounting portions include a wheel arch inner panel mounting portion, a C-ring mounting portion, a corner window lower crossbeam mounting portion, and a C-pillar mounting portion. The lock hook mounting bracket has multiple mounting portions that connect to the vehicle body side panels, thereby enhancing the strength of the vehicle body side panels and improving the vehicle body's NTF (Net Weight Tolerance) level.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and in particular to a seat lock hook mounting structure and a vehicle body structure. Background Technology

[0002] With rising economic levels and increasing car ownership, consumers are demanding higher performance from their vehicles. Noise reduction capabilities within the car have become a major factor in car selection. NVH (Vibration, Noise, and Harshness) performance is directly perceptible to consumers, directly impacting their impression of product quality. The car body serves as the final transmission path for structural noise and vibration; whether NVH issues are caused by powertrain excitation or road surface excitation, they are transmitted to the listener. Currently, automakers utilize platform-based development, often borrowing powertrain and chassis suspension systems. Therefore, overall vehicle NVH performance increasingly relies on optimizing the NTF (Vibration-Noise Transfer Function) and VTF (Vibration-Vibration Transfer Function) of the body system to improve overall NVH performance.

[0003] In related technologies, the optimization of vehicle body NTF is mainly related to the structural design of the vehicle body. The most common method used by engineers is to control the structural stiffness of certain key areas of the vehicle body, or the modal distribution of large body panels, to optimize the NTF frequency band of concern. However, in existing technologies, the support frame is welded to the inner and outer rear wheel bulges with reinforcing plates to achieve high strength. This only strengthens the rear wheel sheet metal and has limited effect on strengthening the weakest side panels located on the upper part of the inner and outer rear wheel bulges, resulting in a low degree of improvement in vehicle body NTF.

[0004] Therefore, it is necessary to provide an improved seat lock hook mounting structure to solve the above problems. Summary of the Invention

[0005] This application provides a seat lock hook mounting structure and a body structure that strengthens the side wall of the vehicle body and optimizes the body's NTF (Net Fat Tolerance).

[0006] This application discloses a seat lock hook mounting structure, including a lock hook assembly and a lock hook mounting bracket. The lock hook mounting bracket includes a main body and several mounting parts that bend and extend from the periphery of the main body. The main body is provided with a lock hook positioning part. The several mounting parts include a wheel cover inner panel mounting part, a C-ring mounting part, a corner window lower crossbeam mounting part, and a C-pillar mounting part.

[0007] Furthermore, the C-pillar mounting portion includes a first C-pillar mounting portion and a second C-pillar mounting portion, wherein the first C-pillar mounting portion is connected to the second C-pillar mounting portion.

[0008] Furthermore, a first reinforcing rib is provided between the first C-pillar mounting portion and the second C-pillar mounting portion, and a second reinforcing rib is provided in the C-ring mounting portion, the second reinforcing rib extending from the main body portion to the C-ring mounting portion.

[0009] Furthermore, the lock hook mounting bracket includes a motor fixing part extending from the main body, the motor fixing part being adjacent to the corner window lower beam mounting part and extending in a direction away from the corner window lower beam mounting part.

[0010] Furthermore, the main body includes a reinforcing part arranged parallel to the C-pillar mounting part, the reinforcing part being located on one side of the locking hook positioning part and extending to the upper and lower edges of the main body.

[0011] Furthermore, the locking hook assembly includes a mounting plate and a locking hook disposed on the mounting plate. The mounting plate cooperates with the locking hook positioning part through a positioning pin, and a locking groove is provided on the upper part of the mounting plate.

[0012] Furthermore, it also includes a motor assembly, which includes a motor mounting bracket, a motor mounted on the motor mounting bracket, and a locking pin, wherein the motor drives the locking pin to move.

[0013] Furthermore, the rear end of the locking pin is provided with a limiting post, the front end of the locking pin is provided with a limiting ring, and the locking pin cooperates with the locking groove.

[0014] This application discloses a vehicle body structure, including a lower crossbeam of the corner window, a C-pillar, an inner wheel arch panel, a C-ring bolt, a rear seat, and a seat lock hook mounting structure as described above.

[0015] Furthermore, the main body covers the junction area of ​​the lower crossbeam of the corner window, the C-pillar, the inner plate of the wheel arch, and the C-ring bolt. One end of the locking hook assembly (10) engages with the main body (21), and the other end engages with the rear seat.

[0016] Compared with the prior art, the beneficial effect of this application is that the locking hook mounting bracket has multiple mounting parts, which are connected to the side of the vehicle body respectively, increasing the strength of the side of the vehicle body. At the same time, the locking hook assembly connects to the rear seat, so that the rear seat is indirectly connected to the side of the vehicle body, further increasing the strength of the side of the vehicle body and improving the NTF level of the vehicle body.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0019] Figure 1 This is a 3D view of the seat lock hook mounting structure installed on the side of the vehicle body.

[0020] Figure 2 yes Figure 1 A 3D view of the seat lock hook installation structure.

[0021] Figure 3 yes Figure 2 A 3D view of the center lock hook assembly.

[0022] Figure 4 yes Figure 2 A three-dimensional view of the seat lock hook installation structure from another perspective.

[0023] Figure 5 yes Figure 2 A 3D view of the mounting bracket for the center lock hook.

[0024] Figure 6 These are analysis graphs of the origin frequency response before and after applying this invention.

[0025] Figure 7 These are analysis diagrams of vehicle road noise before and after the application of this invention.

[0026] Reference numerals: 10; 11; 12; 13; 20; 21; 21; 21; 21; 21; 21; 21; 21; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 22; 30; 31; 32; 33; 33; 33; 33; 33; 33; 40; 50; 60; 70; 2 ... Detailed Implementation

[0027] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this specification. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this specification as detailed in the appended claims.

[0028] The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this specification. The singular forms “a,” “the,” and “the” as used in this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0029] It should be understood that although the terms first, second, third, etc., may be used in this specification to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this specification, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0030] The embodiments described in this specification will now be described in detail.

[0031] like Figure 1 As shown, the seat lock hook mounting structure of the present invention includes a lock hook assembly 10, a lock hook mounting bracket 20 for fixing the lock hook assembly 10, and a motor assembly 30 that cooperates with the lock hook assembly 10. The vehicle body structure includes the seat lock hook mounting structure, a lower crossbeam 40 of the corner window, a C-pillar 50, an inner wheel arch panel 60, a C-ring bolt 70, and a rear seat.

[0032] The inner wheel arch panel 60 is located below the lower crossbeam 40 of the corner window. Both the inner wheel arch panel 60 and the lower crossbeam 40 of the corner window are connected to the C-pillar 50. The seat lock hook mounting structure is connected and fixed to the lower crossbeam 40 of the corner window, the C-pillar 50, the inner wheel arch panel 60, and the C-ring bolt 70. The rear seats are connected to the side panel of the vehicle body formed by the lower crossbeam 40 of the corner window, the C-pillar 50, the inner wheel arch panel 60, and the C-ring bolt 70 through the seat lock hook mounting structure.

[0033] like Figures 2 to 3 As shown, the lock hook assembly 10 includes a mounting plate 11 and a lock hook 12 disposed on the mounting plate 11. The mounting plate 11 cooperates with the lock hook mounting bracket 20. The upper part of the mounting plate 11 is provided with a locking groove 13, and the lower part of the mounting plate 11 is provided with a mounting hole. The mounting plate 11 is press-fitted with the lock hook 12 through the mounting hole, and the lock hook 12 cooperates with the rear seat.

[0034] like Figures 4 to 5 As shown, the lock hook mounting bracket 20 includes a main body 21, several mounting portions 22 extending from the periphery of the main body 21 by bending, and a motor fixing portion 23. The main body 21 covers the junction area of ​​the lower crossbeam 40 of the corner window, the C-pillar 50, the inner plate of the wheel arch 60, and the C-ring bolt 70.

[0035] The main body 21 is provided with a hook positioning part 211 and a reinforcing part 212 protruding from the surface of the main body 21. The hook positioning part 211 is a strip-shaped groove and is inclinedly provided on the main body 21. The edge portion of the hook positioning part 211 is provided with a reinforcing edge 2110, and the surface of the reinforcing edge 2110 is higher than that of the main body 21.

[0036] One end of the locking hook positioning part 211 is close to the reinforcing part 212, and the other end extends to the edge of the main body part 21. The locking hook positioning part 211 is engaged with the mounting plate 11 by a positioning pin, so that the mounting plate 11 can move along the locking hook positioning part 211 and rotate by the positioning pin.

[0037] The reinforcing part 212 is vertically arranged and located on one side of the locking hook positioning part 211. The two ends of the reinforcing part 212 extend to the upper and lower edges of the main body part 21, and the surface of the reinforcing part 212 is higher than the surface of the main body part 21.

[0038] Mounting section 22 includes wheel arch inner panel mounting section 221, C-ring mounting section 222, corner window lower crossbeam mounting section 223, and C-pillar mounting section. The C-pillar mounting section includes a first C-pillar mounting section 224 and a second C-pillar mounting section 225.

[0039] The inner wheel arch mounting portion 221 bends and extends from the lower center of the main body portion 21, is fixedly connected to the inner wheel arch plate 60, and covers a portion of the inner wheel arch plate 60. The C-ring mounting portion 222 bends and extends from one side of the main body portion 21, is fixedly connected to the C-ring bolt 70, and covers a portion of the C-ring bolt 70. The C-ring mounting portion 222 is provided with a second reinforcing rib 227, which extends from the main body portion 21 to the C-ring mounting portion 222.

[0040] The corner window lower beam mounting part 223 bends and extends from the upper side of the main body 21, is fixedly connected to the corner window lower beam 40, and covers a portion of the corner window lower beam 40. The C-pillar mounting part bends and extends from the other side of the main body 21, is fixedly connected to the C-pillar 50, and covers a portion of the C-pillar 50.

[0041] The first C-pillar mounting portion 224 is connected to the second C-pillar mounting portion 225 and is arranged side by side with the reinforcing portion 212. Two first reinforcing ribs 226 are provided between the first C-pillar mounting portion 224 and the second C-pillar mounting portion 225, and the first reinforcing ribs 226 extend from the main body portion 21 to the edge of the C-pillar mounting portion.

[0042] The motor mounting part 23 extends outward from the edge of the main body 21, adjacent to the corner window lower crossbeam mounting part 223, and at the same time extends in a direction away from the corner window lower crossbeam mounting part 223. The motor mounting part 23 is provided with several mounting holes for fixed engagement with the motor assembly 30.

[0043] like Figure 2 and Figure 4 As shown, the motor assembly 30 includes a motor mounting bracket 31, a motor 32 mounted on the motor mounting bracket 31, and a locking pin 33. The motor 32 engages with the locking pin 33 via a lead screw and gear, driving the locking pin 33 to move. The locking pin 33 passes through the motor mounting bracket 31 and is positioned perpendicular to the motor 32.

[0044] The locking pin 33 is cylindrical, and a limiting post 331 is provided at the rear end of the locking pin 33. The limiting post 331 is integrally formed with the locking pin 33. A limiting ring 332 is provided at the front end of the locking pin 33, and the limiting ring 332 is engaged with the locking pin 33. The locking pin 33 cooperates with the locking groove 13 to restrict the rotation of the mounting plate 11.

[0045] Before and after the installation of the seat locking hook mounting structure, IPI (Initial Dynamic Stiffness) analysis was performed at the same inner point on the side panel of the vehicle body. The analysis results are as follows: Figure 6 As shown, because the locking hook mounting bracket 20 is designed with a "5" claw mounting structure, it provides a wider coverage area for the side of the vehicle body after being used with the side of the vehicle body. Moreover, the locking hook assembly 10 is fixed on the locking hook mounting bracket 20 and cannot move along the normal direction of the side of the vehicle body. The other end of the locking hook assembly 10 is also locked and fixed to the rear seat.

[0046] When the vehicle body is excited, the side panels deform along the normal direction, generating vibration. When the side panels vibrate at high frequencies, the force is transmitted to the rear seats through the seat latch mounting structure. However, due to the large mass of the rear seats, they generate significant inertia, constraining the vibration of the side panel structure and thus suppressing it. Therefore, the original frequency response analysis curve after installing the seat latch mounting structure is basically below the original frequency response analysis curve without the seat latch mounting structure. That is, at each frequency point, the vibration acceleration amplitude after installing the seat latch mounting structure is generally lower than the value without the seat latch mounting structure. Moreover, after installing the seat latch mounting structure, the vibration acceleration amplitude decreases around 80Hz.

[0047] Based on the corresponding NTF results, a road noise curve for the entire vehicle is fitted, forming a curve like... Figure 7 The diagram shows the overall vehicle road noise analysis. (From...) Figure 7 As can be seen from the comparison curves, the road noise amplitude of the whole vehicle is reduced in the 80Hz frequency band.

[0048] In this application, the locking hook mounting bracket 20 is fixedly connected to the lower crossbeam 40 of the corner window, the C-pillar 50, the inner panel of the wheel arch 60, and the C-ring bolt 70, respectively, thereby strengthening the side panel of the vehicle body at its weakest point. At the same time, the locking hook assembly 10 is connected to the rear seat, and due to the inertia generated by the weight of the rear seat itself, it increases the constraint on the side panel of the vehicle body, suppresses high-frequency vibration of the side panel structure, and optimizes the body NTF.

[0049] The above description is merely a preferred embodiment of this application and is not intended to limit the application in any way. Although this application has disclosed preferred embodiments as described above, it is not intended to limit the application. Any person skilled in the art can utilize the above description without departing from the scope of the technical solution of this application.

[0050] Any modifications or alterations to the disclosed technical content to create equivalent implementations, provided that they do not depart from the technical solution of this application, and any simple modifications, equivalent changes, or alterations made to the above implementations based on the technical essence of this application, shall still fall within the scope of the technical solution of this application.

Claims

1. A seat locking hook mounting structure, characterized in that, Includes: a lock hook assembly, a lock hook mounting bracket, and a motor assembly. The lock hook mounting bracket includes a main body and several mounting parts that bend and extend from the periphery of the main body. The main body is provided with a lock hook positioning part. The several mounting parts include a wheel cover inner plate mounting part, a C-ring mounting part, a corner window lower crossbeam mounting part, and a C-pillar mounting part. The locking hook assembly includes a mounting plate and a locking hook disposed on the mounting plate. The mounting plate is movably and rotatably disposed on the locking hook positioning part, and a locking groove is provided on the upper part of the mounting plate. The motor assembly includes a motor mounting bracket, a motor mounted on the motor mounting bracket, and a locking pin. The motor drives the locking pin to move, and the locking pin engages with the locking groove.

2. The seat locking hook mounting structure according to claim 1, characterized in that, The C-pillar mounting portion includes a first C-pillar mounting portion and a second C-pillar mounting portion, and the first C-pillar mounting portion is connected to the second C-pillar mounting portion.

3. The seat locking hook mounting structure according to claim 2, characterized in that, A first reinforcing rib is provided between the first C-pillar mounting portion and the second C-pillar mounting portion, and a second reinforcing rib is provided in the C-ring mounting portion, the second reinforcing rib extending from the main body portion to the C-ring mounting portion.

4. The seat locking hook mounting structure according to claim 1, characterized in that, The locking hook mounting bracket includes a motor fixing part extending from the main body, the motor fixing part being adjacent to the corner window lower beam mounting part and extending in a direction away from the corner window lower beam mounting part.

5. The seat locking hook mounting structure according to claim 1, characterized in that, The main body includes a reinforcing part arranged parallel to the C-pillar mounting part. The reinforcing part is located on one side of the locking hook positioning part and extends to the upper and lower edges of the main body.

6. The seat locking hook mounting structure according to claim 1, characterized in that, The mounting plate engages with the locking hook positioning part via a positioning pin.

7. The seat locking hook mounting structure according to claim 1, characterized in that, The locking pin has a limiting post at its rear end and a limiting ring at its front end.

8. A vehicle body structure, characterized in that, include: The lower crossbeam of the corner window, the C-pillar, the inner panel of the wheel arch, the C-ring bolt, the rear seat, and the seat lock hook mounting structure as described in any one of claims 1-7.

9. The vehicle body structure according to claim 8, characterized in that, The main body covers the junction area of ​​the lower crossbeam of the corner window, the C-pillar, the inner panel of the wheel arch, and the C-ring bolt. One end of the locking hook assembly engages with the main body, and the other end engages with the rear seat.

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