Double-damping shock absorption seat framework of passenger car
By designing a double-dampening shock-absorbing seat skeleton, the articulated structure of the damper and magnetorheological damper, combined with shock absorbing springs and sensor control, the problem of left and right twisting of traditional single-dampening seats when encountering large pits is solved, achieving better shock absorption and riding comfort.
Patent Information
- Application Number
- CN202422582198.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-10-25
AI Technical Summary
Traditional single-damper shock-absorbing seats will cause left and right twist when encountering large pits, affecting passenger comfort and experience.
A passenger car dual-damping shock-absorbing seat skeleton is designed, using the front and rear ends of the two dampers to hinge on the seat fixing bracket and the moving seat frame respectively. The angle between the axis of the damper and the seat fixing bracket is 20-40 degrees. Combined with the magnetorheological damper and a conical spiral shock-absorbing spring, the action of the damper is controlled through an acceleration sensor and an angle sensor.
It effectively reduces vibration and impact, avoids the left and right twist of the seat, improves riding comfort and safety, reduces fatigue, and is suitable for more models.
Smart Images
Figure CN222959665U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of passenger car seats, and particularly relates to a double-damping shock-absorbing seat frame for passenger cars. Background Technique
[0002] In recent years, with the popularization of electric vehicles, major vehicle manufacturers and end customers have put forward higher requirements for seat comfort. During technical exchanges with customers, it is found that in the road test of traditional single-damper shock-absorbing seats, due to the high speed of passenger cars, when encountering large potholes during driving, a large impact acceleration load will be generated. To prevent the seat from hitting the bottom, it is necessary to increase the damping force of the damper. However, a large damping force will generate a biasing pushing and pulling force on the seat using a offset-mounted damper, so that passengers feel that the seat has a left-right twisting phenomenon, and the comfort and experience of passengers are very poor. Therefore, it is imperative to redesign a seat with good damping and shock-absorbing effects. Summary of the Invention
[0003] The purpose of the utility model is to provide a double-damping shock-absorbing seat frame for passenger cars that will not twist left and right when encountering potholes, has good damping and shock-absorbing effects, and good comfort and experience for passengers.
[0004] The purpose of the utility model is solved as follows:
[0005] A double-damping shock-absorbing seat frame for passenger cars includes a seat moving seat frame and a seat fixing bracket. The front ends of two dampers are symmetrically hinged on both sides of the upper part of the front end of the seat fixing bracket, and the rear ends of the two dampers are symmetrically hinged on both sides of the front part of the seat moving seat frame. The axis of the damper forms an angle of 20-40 degrees with the horizontal plane of the seat fixing bracket.
[0006] As a further optimization of the above technical solution, the seat fixing bracket includes a front cross beam, a rear cross beam, and a longitudinal connecting plate connected between the front cross beam and the rear cross beam. Support legs are symmetrically installed at both ends of the lower surfaces of the front cross beam and the rear cross beam. Front connecting ears are symmetrically welded or bolted on both sides of the upper surface of the front cross beam. The front ends of the two dampers are symmetrically hinged on the front connecting ears on both sides of the upper surface of the front cross beam.
[0007] As a further optimization of the above technical solution, the front connecting ear is a first U-shaped body. The bottom surface of the first U-shaped body is welded or bolted to the upper surface of the front cross beam of the seat fixing bracket. First hinge shafts are installed on the axially symmetric holes on the two side walls of the first U-shaped body. First shaft sleeves are sleeved on the first hinge shafts. The mounting plate at the front end of the damper is welded to the middle of the first shaft sleeve.
[0008] As a further optimization of the above technical solution, the bottom surface of the first U-shaped body is welded or fixed by bolts on the upper surface of the front cross beam located 10-20 cm inside the supporting legs.
[0009] As a further optimization of the above technical solution, the rear part of the seat moving seat frame is an inverted U-shaped body with an opening facing forward, and the front part is a cushion support member fixed on the U-shaped body. Side plates are fixed on both sides of the inverted U-shaped body. Rear connecting ears are welded or fixed by bolts on the upper surfaces of the front parts of both side walls of the inverted U-shaped body. The rear ends of the two dampers are symmetrically hinged on the rear connecting ears respectively.
[0010] As a further optimization of the above technical solution, the rear connecting ear is a second U-shaped body. The bottom surface of the second U-shaped body is welded or fixed by bolts on the upper surfaces of the front parts of both side walls of the inverted U-shaped body. Second hinge shafts are installed on the symmetrically arranged shaft holes on both side walls of the second U-shaped body. Second shaft sleeves are sleeved on the second hinge shafts. The end of the damper telescopic rod at the rear end of the damper is welded or fixed by bolts in the middle of the second shaft sleeve.
[0011] As a further optimization of the above technical solution, the rear part of the inverted U-shaped body is slidably supported on the seat fixing bracket.
[0012] As a further optimization of the above technical solution, the axes of the two dampers are parallel to each other and located in the same plane.
[0013] As a further optimization of the above technical solution, a conical spiral shock-absorbing spring is arranged between the seat moving seat frame and the seat fixing bracket, and the damper is a magnetorheological damper.
[0014] As a further optimization of the above technical solution, an acceleration sensor and an angle sensor are arranged on the seat moving seat frame, and an acceleration sensor is arranged on the seat fixing bracket. The controller controls the action of the magnetorheological damper according to the signals transmitted by the angle sensor and the acceleration sensor.
[0015] The prominent advantages of the present utility model compared with the prior art are:
[0016] 1. Improve riding comfort: The double-damper shock-absorbing seat particularly emphasizes its ability to reduce vibration and absorb shock, reduce the bumpy feeling during driving, improve the riding smoothness, reduce the fatigue feeling during long-distance driving, and is beneficial to spinal health.
[0017] 2. Cost-effectiveness: The innovative design of the structure may have a relatively high initial investment, but in the long run, it can be rewarded by means of energy conservation, reducing maintenance costs and improving vehicle performance.
[0018] 3. Adaptation flexibility: Provide more design freedom and adapt to more car models.
[0019] 4. Environmental protection contribution: By reducing energy consumption and emissions, lightweight design has a positive effect on environmental protection, which is in line with the global trend of carbon emission reduction and environmental protection regulations.
[0020] 5. Safety and stability: The dual dampers are used to control the overall state of the seat to avoid the situation where the seat is higher than the left and right sides or is torsionally unbalanced, preventing the passengers from shaking their bodies, thereby reducing the risk of injury and improving the safety of passengers in adverse conditions.
[0021] 6. Innovation: So far, dual-damper shock-absorbing seats have not been launched in passenger cars, but with huge market demand, I believe they will have a place in the future.
[0022] 7. The use of dual dampers and shock-absorbing springs, coupled with the controller controlling the action of the magnetorheological damper by receiving signals from the angle sensor and acceleration sensor, not only simplifies the structure, but also significantly improves the shock-absorbing performance of the seat. The seat has become an important innovation in the field of modern transportation with its excellent shock-absorbing performance, outstanding safety protection, control stability and humanized design concept. With the continuous advancement of technology and the continuous expansion of its application, it is believed that the dual dampers combined with the damping and shock absorption of the springs and the shock-absorbing seats will bring a safer and more comfortable riding experience to more passengers in the future. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional schematic diagram of the utility model.
[0024] Figure 2 The utility model is a schematic diagram of the connection position of the damper, the movable seat frame and the fixed seat bracket.
[0025] Figure 3 It is the front view of the main structure of the utility model.
[0026] Figure 4 It is a three-dimensional schematic diagram of the main structure of the utility model
[0027] Figure 5 It is a three-dimensional schematic diagram of the utility model shock-absorbing spring
[0028] Figure 6 It is a shock absorption principle diagram of the utility model. DETAILED DESCRIPTION
[0029] The present invention will be further described below with reference to the accompanying drawings. Figures 1 - 6 :
[0030] A double-damping shock-absorbing seat frame for a passenger car, comprising a seat moving seat frame 10 and a seat fixing bracket 20. A seat backrest bracket 63 is arranged on the seat moving seat frame 10. The front ends of two dampers 30 are symmetrically hinged on both sides of the upper part of the front end of the seat fixing bracket 20 respectively, and the rear ends of the two dampers 30 are symmetrically hinged on both sides of the front part of the seat moving seat frame 10. The included angle between the axis of the damper 30 and the horizontal plane of the seat fixing bracket 20 is 20-40 degrees. By setting the included angle of the damper 30 at 20-40 degrees, it can bear a large impact acceleration load in the front-back direction and also bear part of the large impact acceleration load in the up-down direction. Since the two dampers 30 are symmetrically arranged left and right, no left-right torsion will occur.
[0031] As a further optimization of the above technical solution, the seat fixing bracket 20 includes a front cross beam 21, a rear cross beam 23 and a longitudinal connecting plate 22 connected between the front cross beam 21 and the rear cross beam 23. Support legs 24 are symmetrically installed at both ends of the lower surfaces of the front cross beam 21 and the rear cross beam 23. Front connecting ears 40 are symmetrically welded or bolted on both sides of the upper surface of the front cross beam 21. The front ends of the two dampers 30 are symmetrically hinged on the front connecting ears 40 on both sides of the upper surface of the front cross beam 21 respectively.
[0032] As a further optimization of the above technical solution, the front connecting ear 40 is a first U-shaped body. The bottom surface of the first U-shaped body is welded or bolted to the upper surface of the front cross beam 21 of the seat fixing bracket 20. A first hinge shaft 41 is installed on the shaft holes symmetrically arranged on the two side walls of the first U-shaped body. A first shaft sleeve 32 is sleeved on the first hinge shaft 41. The mounting plate 31 at the front end of the damper 30 is welded to the middle of the first shaft sleeve 32.
[0033] As a further optimization of the above technical solution, the bottom surface of the first U-shaped body is welded or bolted to the upper surface of the front cross beam 21 at a position 10-20 cm inside the support leg 24.
[0034] As a further optimization of the above technical solution, the rear part of the seat moving seat frame 10 is an inverted U-shaped body with an opening facing forward and the front part is a cushion support member 12 fixed on the U-shaped body. Side plates 11 are fixed on both sides of the inverted U-shaped body. Rear connecting ears 42 are welded or bolted to the upper surfaces of the front parts of the two side walls of the inverted U-shaped body. The rear ends of the two dampers 30 are symmetrically hinged on the rear connecting ears 42 respectively.
[0035] As a further optimization of the above technical solution, the rear connecting ear 42 is a second U-shaped body, the bottom surface of the second U-shaped body is welded or fixed by bolts on the upper surfaces of the front parts of the two side walls of the inverted U-shaped body, and second hinge shafts 43 are symmetrically arranged on the two side walls of the second U-shaped body. A second shaft sleeve 34 is sleeved on the second hinge shaft 43, and the end of the damper telescopic rod 33 at the rear end of the damper 30 is welded or fixed by bolts in the middle of the second shaft sleeve 34.
[0036] Setting a relatively large U-shaped connecting ear at the front can bear the relatively large impact acceleration load transmitted by the damper 30 and is firmly fixed.
[0037] As a further optimization of the above technical solution, the rear part of the inverted U-shaped body is slidably supported on the seat fixing bracket 20.
[0038] As a further optimization of the above technical solution, the axes of the two dampers 30 are parallel to each other and are located in the same plane.
[0039] As a further optimization of the above technical solution, a conical spiral shock-absorbing spring 50 is arranged between the seat moving seat frame 10 and the seat fixing bracket 20, and the damper 30 is a magnetorheological damper.
[0040] As a further optimization of the above technical solution, an acceleration sensor 61 and an angle sensor 62 are arranged on the seat moving seat frame 20, and an acceleration sensor 61 is arranged on the seat fixing bracket 10. The controller 60 controls the action of the magnetorheological damper according to the signals transmitted by the angle sensor 62 and the acceleration sensor 61.
[0041] See Figure 6 : When a passenger (load 14) sits on the seat cushion 13 of the seat, the angle sensor 62 will sense the body weight and the deflection angle of the backrest 13 pressing down on the seat moving seat frame 20. When the vehicle is subjected to a relatively large impact load, the acceleration sensor 61 will sense the acceleration signal of the front-back and / or up-down movement of the seat moving seat frame 20. The controller will control the action of the magnetorheological damper according to the signals transmitted by the angle sensor 62 and the acceleration sensor 61, and combined with the cooperative action of the shock-absorbing spring 50, to reduce the discomfort brought to people due to vibration and impact.
[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still make simple substitutions or modifications of similar technologies to the technical solutions or technical features recorded in the foregoing embodiments, and these simple substitutions or modifications do not cause the essence of the corresponding technical solutions to deviate from the spirit and essence of the technical solutions of the embodiments of the present invention, and are still within the protection scope of the present invention.
Claims
1. A double damping shock absorbing seat frame for a passenger car, comprising a seat movable seat frame and a seat fixing bracket, characterized in that: The front ends of the two dampers are symmetrically hinged on both sides of the upper front end of the seat fixing bracket, and the rear ends of the two dampers are symmetrically hinged on both sides of the middle of the seat movable seat frame. The angle between the axis of the damper and the horizontal plane of the seat fixing bracket is 20-40 degrees.
2. A passenger car double damping shock absorbing seat frame according to claim 1, characterized in that: The seat fixing bracket includes a front cross beam, a rear cross beam and a longitudinal connecting plate connected between the front cross beam and the rear cross beam, support legs are symmetrically installed at both ends of the lower surfaces of the front cross beam and the rear cross beam, front connecting ears are symmetrically welded or bolted on both sides of the upper surface of the front cross beam, and the front ends of the two dampers are symmetrically hinged to the front connecting ears on both sides of the upper surface of the front cross beam.
3. A passenger car double damping shock absorbing seat frame according to claim 2, characterized in that: The front connecting ear is a first U-shaped body, the bottom surface of the first U-shaped body is welded or fixed by bolts to the upper surface of the front cross beam of the seat fixing bracket, the first hinge shaft is installed on the symmetrically arranged shaft holes on the two side walls of the first U-shaped body, the first hinge shaft is sleeved with a first shaft sleeve, and the mounting plate at the front end of the damper is welded to the middle part of the first shaft sleeve.
4. A passenger car double damping shock absorbing seat frame according to claim 3, characterized in that: The bottom surface of the first U-shaped body is welded or fixed by bolts to the upper surface of the front cross beam at a distance of 10-20 cm from the inner side of the supporting leg.
5. The double-damping shock-absorbing seat frame for a passenger vehicle according to claim 1, characterized in that: The rear part of the movable seat frame is an inverted U-shaped body with an opening facing forward, and the front part is a cushion support fixed on the U-shaped body. Side panels are fixed on both sides of the inverted U-shaped body. The upper surface of the front part of the two side walls of the inverted U-shaped body is welded or fixed with rear connecting ears by bolts, and the rear ends of the two dampers are symmetrically hinged on the rear connecting ears respectively.
6. A passenger car double damping shock absorbing seat frame according to claim 5, characterized in that: The rear connecting ear is a second U-shaped body, the bottom surface of the second U-shaped body is welded or fixed by bolts to the upper surface of the front part of the two side walls of the inverted U-shaped body, the second hinge shaft is installed on the axial holes symmetrically arranged on the two side walls of the second U-shaped body, and the second hinge shaft is sleeved with a second shaft sleeve, and the end of the damper telescopic rod at the rear end of the damper is welded or fixed by bolts to the middle part of the second shaft sleeve.
7. The double-damping shock-absorbing seat frame for a passenger vehicle according to claim 5, characterized in that: The rear portion of the inverted U-shaped body is slidably supported on the seat fixing bracket.
8. The double-damping shock-absorbing seat frame for a passenger vehicle according to claim 1, characterized in that: The axes of the two dampers are parallel to each other and located in the same plane.
9. A passenger car double damping shock absorbing seat frame according to any one of claims 1 to 8, characterized in that: A conical spiral damping spring is arranged between the seat movable seat frame and the seat fixed bracket, and the damper is a magnetorheological damper.
10. A passenger car double damping shock absorbing seat frame according to any one of claims 1 to 8, characterized in that: The seat moving seat frame is provided with an acceleration sensor and an angle sensor for detecting the weight of a passenger, and the seat fixing bracket is provided with an acceleration sensor.