A reinforcing structure for a seat side panel of a vehicle seat
Patent Information
- Application Number
- CN202522350142.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-05
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-05
AI Technical Summary
[0005]本实用新型的目的在于提供一种提高汽车座椅模态的坐边板强化结构，旨在解决现有平台坐边板刚度不足、易共振的问题
[0012]本实用新型的一种提高汽车座椅模态的坐边板强化结构，本结构在沿用平台化1.3 mm坐边板的基础上，通过后端增设2.0 mm后加强板、前端焊接L形坐前加强板，形成复合截面，使座椅骨架X、Y、Z向刚度同步提升；一阶模态提高≥3 Hz，二阶模态提高≥5 Hz，有效避开发动机及路面激励频段，消除共振异响。加强件与坐边板采用常规电阻点焊和弧焊，沿用原焊接夹具仅微调定位，满足轻量化、耐久无异响裂纹，可靠性与舒适性同步提升，从而解决了现有平台坐边板刚度不足、易共振的问题。
Smart Images
Figure CN224898657U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive seat technology, and in particular to a seat side plate reinforcement structure for improving the modality of automotive seats. Background Technology
[0002] NVH is a general term for various indicators such as vehicle noise, vibration and comfort. Because the vibration of the vehicle structure will generate noise, which in turn affects comfort. Although the car seat is a relatively independent system based on the vehicle body, the NVH of the vehicle body will ultimately be fed back to the seat. The human body is in close contact with the seat, so the driver and passengers can intuitively feel whether the seat is comfortable.
[0003] In existing platform-based seats, the seat edge plates are generally made of 1.3mm thin sheet metal stampings, which are welded to the slide rails and seat frame to form a closed cross section. Due to platform borrowing and cost constraints, the seat edge plates cannot be thickened as a whole, resulting in: a low first-order modal frequency of the seat, making it easy to couple with the second-order excitation of the engine or road surface; reduced frame mass under a monotonous seat configuration, further reducing stiffness; and the tendency for abnormal noise and fatigue cracking to occur with long-term use. If a thicker seat edge plate is to be developed, new molds and welding fixtures need to be created, resulting in a long development cycle and high costs.
[0004] Therefore, there is an urgent need for a low-cost reinforcement solution that can quickly improve the modality without changing the platform's seat plate or adding large tooling. Utility Model Content
[0005] The purpose of this invention is to provide a seat side plate reinforcement structure that improves the modal characteristics of automobile seats, aiming to solve the problems of insufficient stiffness and easy resonance of existing platform seat side plates.
[0006] To achieve the above objectives, this utility model provides a seat side plate reinforcement structure to improve the modality of automobile seats, including a seat cross tube, a seat side plate rear reinforcement plate, multiple resistance welded columns, a seat cushion side plate, a seat front reinforcement plate, a seat front cross tube, two M8 nuts, and a seat side plate.
[0007] The seat cross tube and the front seat cross tube are installed on the car seat. The seat side plate is installed on the seat cross tube and the front seat cross tube and is installed on the car seat by two M8 nuts. The rear reinforcing plate of the seat side plate is welded to the seat side plate by multiple resistance welding columns and is connected to the seat cross tube. The seat cushion side plate is welded to the seat side plate and to the rear reinforcing plate of the seat side plate. The front seat reinforcing plate is connected to the front seat cross tube.
[0008] The rear reinforcing plate of the seat side plate has a reinforcing plate clearance hole.
[0009] The front seat reinforcement plate has a front seat reinforcement plate through hole and a reinforcement plate base bolt through hole.
[0010] The front reinforcing plate is L-shaped and has a thickness of 2.0 mm.
[0011] The thickness of the seat plate is 1.3 mm.
[0012] This invention discloses a seat edge plate reinforcement structure for improving the modal characteristics of automotive seats. Based on a standard 1.3 mm seat edge plate, this structure adds a 2.0 mm rear reinforcement plate at the rear end and welds an L-shaped front reinforcement plate at the front end, forming a composite cross-section. This simultaneously improves the stiffness of the seat frame in the X, Y, and Z directions; the first-order modal stiffness is improved by ≥3 Hz, and the second-order modal stiffness by ≥5 Hz, effectively avoiding the engine and road excitation frequency bands and eliminating resonance and abnormal noise. The reinforcement and seat edge plate are welded using conventional resistance spot welding and arc welding, with only minor adjustments to the positioning using the original welding fixture. This achieves lightweight, durability, and crack-free operation, simultaneously improving reliability and comfort, thus solving the problems of insufficient stiffness and easy resonance in existing standard seat edge plates. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0014] Figure 1 This is a schematic diagram of a seat side plate reinforcement structure for improving the modality of a car seat, installed on a car seat.
[0015] Figure 2 This is a structural diagram of the rear reinforcing plate of the seat side plate, the front reinforcing plate of the seat side plate, and the seat side plate.
[0016] Figure 3 This is a structural diagram of the reinforcing plate behind the seat plate.
[0017] Figure 4 This is a structural diagram of the front reinforcing plate.
[0018] In the diagram: 1-Sitting horizontal tube, 2-Sitting side plate rear reinforcing plate, 201-Reinforcing plate clearance hole, 3-Resistance welding column, 4-Sitting pad side plate, 5-Sitting front reinforcing plate, 501-Sitting front reinforcing plate through hole, 502-Reinforcing plate base bolt through hole, 6-Sitting front horizontal tube, 7-M8 nut, 8-Sitting side plate. Detailed Implementation
[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0020] Please see Figures 1-4 This utility model provides a seat side plate reinforcement structure to improve the mode of automobile seats, including a seat cross tube 1, a seat side plate rear reinforcement plate 2, multiple resistance welded columns 3, a seat cushion side plate 4, a seat front reinforcement plate 5, a seat front cross tube 6, two M8 nuts 7 and a seat side plate 8.
[0021] The seat cross tube 1 and the front seat cross tube 6 are installed on the car seat. The seat side plate 8 is installed on the seat cross tube 1 and the front seat cross tube 6 and is installed on the car seat by two M8 nuts 7. The seat side plate rear reinforcement plate 2 is welded to the seat side plate 8 by multiple resistance welding columns 3 and is connected to the seat cross tube 1. The seat cushion side plate 4 is welded to the seat side plate 8 and to the seat side plate rear reinforcement plate 2. The front seat reinforcement plate 5 is connected to the front seat cross tube 6.
[0022] Furthermore, the rear reinforcing plate 2 of the seat plate has a reinforcing plate clearance hole 201.
[0023] Furthermore, the front seat reinforcement plate 5 has a front seat reinforcement plate through hole 501 and a reinforcement plate base bolt through hole 502.
[0024] Furthermore, the front reinforcing plate 5 is L-shaped and has a thickness of 2.0 mm.
[0025] Furthermore, the thickness of the seat plate 8 is 1.3 mm.
[0026] In this embodiment, a rear reinforcing plate 2 is added to the rear end of the seat side plate 8. The reinforcing plate of the seat side plate 8 is 2.0 mm thick, and the seat side plate 8 is 1.3 mm thick. The two are spot-welded together to form a combined welded component - the seat side plate welding assembly. The rear reinforcing plate 2 has a through hole to avoid the rear cross tube of the seat. After welding, the two can enhance the rigidity and strength of the seat side plate 8 and prevent the seat side plate 8 from deforming laterally and vertically. The front reinforcing plate 5 is arc-welded to the seat side plate 8. The front reinforcing plate has a through hole 501 and a bolt through hole 502 for the front reinforcing plate base is added. The front reinforcing plate 5 is L-shaped and is welded to the side plate. The seat side plate 8 welding assembly is welded to the seat frame assembly, which enhances the overall strength and rigidity of the seat frame in the Z direction, thereby improving the modal frequency. This makes the modal frequency different from the excitation frequency of the engine or the road surface, avoiding resonance and bringing better comfort to the passenger. This structure, based on the existing 1.3 mm seat edge plate 8, adds a 2.0 mm rear reinforcing plate at the rear and welds an L-shaped front seat reinforcing plate 5 at the front, forming a composite cross-section. This simultaneously improves the stiffness of the seat frame in the X, Y, and Z directions; the first-order mode is improved by ≥3 Hz, and the second-order mode by ≥5 Hz, effectively avoiding the engine and road excitation frequency bands and eliminating resonance noise. The reinforcing components and seat edge plate 8 are welded using conventional resistance spot welding and arc welding, with only minor adjustments to the positioning using the original welding fixture. This achieves lightweight, durability, and crack-free operation, simultaneously improving reliability and comfort, thus solving the problems of insufficient stiffness and easy resonance in the existing platform seat edge plate 8.
[0027] Beneficial effects:
[0028] 1. By welding the seat plate to the reinforcing plate, the rigidity and strength of the platform component seat plate are increased.
[0029] 2. Improve the modal performance of monotonous seat frames to enhance passenger comfort.
[0030] 3. In the process of welding the skeleton assembly, this solution does not require new design of welding tooling and fixtures, but only minor adjustments, avoiding new development and saving costs.
[0031] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.
Claims
1. A seat edge plate reinforcement structure for improving the modal characteristics of automobile seats, characterized in that, Includes a seat cross tube, a seat side plate and a rear reinforcing plate, multiple resistance welded columns, a seat cushion side plate, a seat front reinforcing plate, a seat front cross tube, two M8 nuts, and a seat side plate; The seat cross tube and the front seat cross tube are installed on the car seat. The seat side plate is installed on the seat cross tube and the front seat cross tube and is installed on the car seat by two M8 nuts. The rear reinforcing plate of the seat side plate is welded to the seat side plate by multiple resistance welding columns and is connected to the seat cross tube. The seat cushion side plate is welded to the seat side plate and to the rear reinforcing plate of the seat side plate. The front seat reinforcing plate is connected to the front seat cross tube.
2. The seat edge reinforcement structure for improving the modal characteristics of an automobile seat as described in claim 1, characterized in that, The rear reinforcing plate of the seat plate has a reinforcing plate clearance hole.
3. The seat edge reinforcement structure for improving the modal characteristics of an automobile seat as described in claim 1, characterized in that, The front seat reinforcement plate has a front seat reinforcement plate through hole and a reinforcement plate base bolt through hole.
4. The seat edge reinforcement structure for improving the modal characteristics of an automobile seat as described in claim 1, characterized in that, The front reinforcing plate is L-shaped and 2.0 mm thick.
5. The seat edge reinforcement structure for improving the modal characteristics of an automobile seat as described in claim 1, characterized in that, The thickness of the seat plate is 1.3 mm.