CN112477713A - Automobile seat and anti-submergence energy absorption structure thereof - Google Patents
Automobile seat and anti-submergence energy absorption structure thereof Download PDFInfo
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- CN112477713A CN112477713A CN202011392550.4A CN202011392550A CN112477713A CN 112477713 A CN112477713 A CN 112477713A CN 202011392550 A CN202011392550 A CN 202011392550A CN 112477713 A CN112477713 A CN 112477713A
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- energy
- absorbing
- connecting piece
- absorbing connecting
- front cross
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
- B60N2/4249—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats fixed structures, i.e. where neither the seat nor a part thereof are displaced during a crash
- B60N2/4256—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats fixed structures, i.e. where neither the seat nor a part thereof are displaced during a crash the shape of the seat being specially adapted for a particular purpose or for particular vehicles
- B60N2/4263—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats fixed structures, i.e. where neither the seat nor a part thereof are displaced during a crash the shape of the seat being specially adapted for a particular purpose or for particular vehicles with anti-submarining systems
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a submergence-preventing energy-absorbing structure of an automobile seat and the automobile seat, and the submergence-preventing energy-absorbing structure comprises a seat cushion half basin, a front cross beam and energy-absorbing connecting pieces, wherein one end of each energy-absorbing connecting piece is connected with the seat cushion half basin, the other end of each energy-absorbing connecting piece is connected with the front cross beam, the energy-absorbing connecting pieces are of a plurality of integrated structures, each energy-absorbing connecting piece comprises a plurality of bending parts, the bending directions of the two adjacent bending parts are opposite, the bending parts are arranged at the gap between the seat cushion half basin and the front cross beam, when a force is applied, the bending parts are supported by the front cross beam and move together with the seat cushion half basin to generate energy-absorbing plastic deformation, under the condition that certain rigidity strength is ensured, the submergence phenomenon caused by the fact that a passenger slides forwards.
Description
Technical Field
The invention relates to the technical field of automobile seats, in particular to a submergence preventing and energy absorbing structure of an automobile seat and the automobile seat.
Background
With the rapid development of the automobile industry, as one of the key parts of automobiles, the automobile seat is required to have reasonable arrangement and good comfort, and the safety performance of the automobile seat is required to be continuously improved. In the front collision process of an automobile, as shown in fig. 1, a passenger slides forwards due to the inertia effect, at this time, a safety belt can only restrain the passenger from moving forwards to a certain extent, a half basin of a seat cushion of a seat still generates large deformation under the action of forward impact of the passenger, so that the gravity center of the passenger moves downwards greatly, namely, a so-called dive phenomenon, a belt of the safety belt slides to separate from a normal use position, so that the normal function of a restraint system is seriously influenced, and the passenger is easily seriously injured.
At present, most automobile seats adopt a mode that a half basin of a seat cushion moves forwards to generate structural deformation to achieve the effect of preventing passengers from submerging in the front collision, but the submerging prevention effect is relatively limited, the requirements of people on the development of higher and higher safety performance of the automobile seats cannot be met, and the higher and higher requirements of C-NCAP standard on the seat submerging prevention effect can be provided in the future.
Disclosure of Invention
Aiming at the defects existing in the prior art, the technical problems solved by the invention are as follows:
under the condition of ensuring certain rigidity strength, how to avoid or reduce the phenomenon of submergence caused by that passengers greatly slide forwards under the inertia effect in the frontal collision process of the automobile, how to reduce the injury of the passengers and improve the collision safety.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a car seat prevents energy-absorbing structure that dives, includes half basin of seatpad, front beam and energy-absorbing connecting piece, the one end of energy-absorbing connecting piece with half basin of seatpad is connected, the other end of energy-absorbing connecting piece with the front beam is connected, the energy-absorbing connecting piece is a plurality of, energy-absorbing connecting piece formula structure as an organic whole, the energy-absorbing connecting piece includes a plurality of flexion, and the crooked opposite direction of two adjacent flexion, the flexion is located half basin of seatpad with space department between the front beam, during the atress, it is a plurality of the flexion with the front beam is for supporting, accompanies half basin of seatpad removes and then produces energy-absorbing plastic deformation together.
Furthermore, one end of the energy-absorbing connecting piece is fixed on the seat cushion half basin in one or more of welding, bolts and riveting.
Furthermore, the other end of the energy-absorbing connecting piece is fixed on the front cross beam in one or more of welding, bolts, riveting and sleeves.
Furthermore, the energy-absorbing connecting pieces are symmetrically distributed along the center of the front cross beam.
Furthermore, a plurality of the energy-absorbing connecting pieces are arranged at equal intervals.
Furthermore, when the stress is applied, the plurality of bending parts take the front cross beam as a support and generate elastic energy absorption deformation, and after the external force is removed, the plurality of bending parts recover the structure before deformation.
Furthermore, when the stress is applied, the bending parts take the front cross beam as a support, and the inelastic permanent energy absorption deformation is generated.
Furthermore, there are 2 curved portions, and the curved portions are S-shaped.
The invention also provides an automobile seat which comprises the anti-dive energy absorption structure of the automobile seat.
Compared with the prior art, the invention has the beneficial effects that:
on the basis of guaranteeing certain rigidity intensity, set up the energy-absorbing connecting piece that has a plurality of flexion between cushion half basin and front beam, avoid or reduce the car in the front collision in-process passenger because inertia effect slides forward the dive phenomenon that causes by a wide margin, reduce the injury that the seat dive caused the passenger, improve collision security, and simultaneously, current car seat structure can not be changed in the setting of energy-absorbing connecting piece, easily realize manufacturability and assembly nature, its commonality and practicality are strong.
Drawings
FIG. 1 is a schematic diagram of a vehicle seat under force during a frontal collision;
FIG. 2 is a schematic cross-sectional view of a seat without an anti-dive energy-absorbing structure;
FIG. 3 is a schematic cross-sectional view of a seat having an anti-dive energy-absorbing structure;
FIG. 4 is a bottom view of a seat having an anti-dive energy-absorbing structure;
FIG. 5 is a side view of a seat having an anti-dive energy absorbing structure;
FIG. 6 is a schematic structural view of an energy absorbing connection according to one embodiment;
FIG. 7 is a second schematic structural view of an energy absorbing connector according to the first embodiment;
FIG. 8 is a third schematic structural view of an energy absorbing connector according to the first embodiment;
FIG. 9 is a schematic structural view of an energy absorbing connection according to one embodiment;
FIG. 10 is a second schematic structural view of the energy absorbing connector of the second embodiment;
FIG. 11 is a third schematic structural view of an energy absorbing connector of the second embodiment;
in the figure, 1, a cushion is a half basin; 2. a front cross member; 3. an energy-absorbing connector; 4. a bending section; 41. a first curved portion; 42. a second curved portion; 43. a third bend portion.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described below with reference to the accompanying drawings and embodiments. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The invention provides a dive-preventing energy-absorbing structure of an automobile seat, which is shown in figures 2-5 and comprises a seat cushion half basin 1, a front cross beam 2 and an energy-absorbing connecting piece 3, wherein one end of the energy-absorbing connecting piece 3 is connected with the seat cushion half basin 1, the other end of the energy-absorbing connecting piece 3 is connected with the front cross beam 2, preferably, one end of the energy-absorbing connecting piece 3 can be fixed on the seat cushion half basin 1 in one or more forms of welding, bolts, riveting and the like, and the other end of the energy-absorbing connecting piece 3 can be fixed on the front cross beam 2 in one or more forms of welding, bolts, riveting or sleeves and the.
The energy-absorbing connecting pieces 3 are of an integrated structure, the number of the energy-absorbing connecting pieces 3 is not limited, the energy-absorbing connecting pieces 3 are arranged in a gap area which is arranged between the seat cushion half basin 1 and the front cross beam 2 and is easy to arrange, the energy-absorbing connecting pieces can be symmetrically or asymmetrically distributed along the central position of the front cross beam 2 and can be arranged at equal intervals or unequal intervals, preferably, the energy-absorbing connecting pieces 3 are arranged in an area which can be arranged between the seat cushion half basin 1 and the front cross beam 2 and can be used for further preventing a passenger from diving in order to improve the impact energy absorption during frontal collision, and meanwhile, the left and right energy-absorbing balance is ensured, each energy-absorbing connecting piece 3 is symmetrically distributed along the central position.
The energy-absorbing connecting piece 3 improves the anti-dive effect by energy-absorbing deformation in the frontal collision process, and the specific structure of the energy-absorbing connecting piece can be mainly divided into three types: the first is a deformation recoverable structure mainly based on a spring type, namely a structural form which elastically absorbs energy and deforms when stressed and can recover the deformation after external force is removed; the second type is a deformation unrecoverable structure mainly based on a collapse energy absorption type, namely a structural form which is permanently shaped, energy-absorbing and deformed when stressed and is unrecoverable after external force is removed; the third is a structure with the first and the second combined deformation local recoverable type, namely a structure with the local elastic energy-absorbing deformation, the permanent plastic energy-absorbing deformation of one part and the recoverable deformation of the other part after the external force is removed.
The rigidity performance of the energy-absorbing connecting piece 3 is to prevent the half basin 1 and the front beam 2 of the seat cushion from being equivalently rigidly connected and being incapable of deforming and absorbing energy due to too strong rigidity, and also to avoid the energy-absorbing effect from being greatly weakened due to too weak rigidity. Preferably, the stiffness characteristics of the energy-absorbing connector 3 can be optimized and determined by using a virtual simulation CAE technology.
When the automobile is in a frontal collision, a passenger slides forwards and downwards under the action of inertia to press the automobile seat cushion and enable the seat cushion half basin 1 to generate plastic deformation in the front-down direction under the impact action of the passenger, and when the anti-dive energy absorption structure is not arranged, the plastic deformation of the seat cushion half basin 1 is large to a certain degree and then contacts the front cross beam 2 to enable the front cross beam to generate plastic deformation in the front-down direction, so that the gravity center of the passenger generates relatively large forward and downwards movement, the normal function of a restraint system is influenced, and the passenger is injured; when the anti-dive energy-absorbing structure is utilized, the seat cushion half-basin 1 generates plastic deformation and absorbs energy, meanwhile, each energy-absorbing connecting piece 3 of the anti-dive energy-absorbing structure can also take the front cross beam 2 as a support and then generates large-degree recoverable or unrecoverable energy-absorbing plastic deformation along with the seat cushion half-basin 1, impact energy is absorbed to a certain degree, forward and downward movement of passengers is reduced, the anti-dive effect of the automobile seat is improved, injury to the passengers is effectively reduced, and collision safety is improved.
The relative position between the seat cushion half-basin 1 and the front cross beam 2 is fixed, the addition and arrangement of the anti-dive energy absorption structure can not influence the daily use and the basic performance of the original automobile seat, and the universality and the practicability are strong.
The energy-absorbing connecting piece 3 comprises a plurality of bending portions 4, the bending directions of two adjacent bending portions 4 are opposite, the bending portions 4 are arranged at the gap between the seat cushion half basin 1 and the front cross beam 2, and when the seat cushion half basin 1 is stressed, the bending portions 4 are supported by the front cross beam 2 and move together along with the seat cushion half basin 1 to generate energy-absorbing plastic deformation.
The first embodiment is as follows:
referring to fig. 6-8, one end of the energy-absorbing connecting piece 3 is fixedly connected with the seat cushion half-tub 1, the other end of the energy-absorbing connecting piece 3 is fixedly connected with the front cross beam 2, the energy-absorbing connecting piece 3 comprises 2 bending portions 4 which are respectively a first bending portion 41 and a second bending portion 42, the bending directions of the 2 bending portions 4 are opposite, and the bending portions 4 are in a regular or irregular S shape.
Example two:
referring to fig. 9-11, one end of the energy-absorbing link 3 is fixedly connected to the seat cushion half-tub 1, the other end of the energy-absorbing link 3 is fixedly connected to the front cross member 2, and the energy-absorbing link 3 includes a plurality of curved portions 4, which are a first curved portion 41, a second curved portion 42, a third curved portion 43 … …, and so on. The curved portion 4 may be in the form of a spring, a multi-layer ring, or the like.
The invention also provides an automobile seat which comprises the anti-dive energy absorption structure of the automobile seat.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should fall within the protection scope of the present invention.
Claims (9)
1. The utility model provides a car seat prevent energy-absorbing structure that dives, its characterized in that, includes half basin of seatpad, front beam and energy-absorbing connecting piece, the one end of energy-absorbing connecting piece with half basin of seatpad is connected, the other end of energy-absorbing connecting piece with the front beam is connected, the energy-absorbing connecting piece is a plurality of, energy-absorbing connecting piece formula structure as an organic whole, the energy-absorbing connecting piece includes a plurality of flexion, and the crooked opposite direction of two adjacent flexion, the flexion is located half basin of seatpad with space department between the front beam, during the atress, a plurality of the flexion with the front beam is for supporting, accompanies half basin of seatpad removes together and then produces energy-absorbing plastic deformation.
2. The structure of claim 1, wherein one end of the energy absorbing connector is fixed to the seat cushion half-tub by one or more of welding, bolting, and riveting.
3. The anti-dive energy absorption structure of an automobile seat according to claim 1, wherein the other end of the energy absorption connector is fixed to the front cross member by one or more of welding, bolting, riveting, and sleeving.
4. The car seat anti-dive energy absorption structure according to claim 1, wherein said energy absorption connectors are symmetrically disposed along a center of said front beam.
5. The anti-dive energy absorption structure for car seats according to claim 4, wherein a plurality of said energy absorption connectors are arranged at equal intervals.
6. The structure of claim 1, wherein the plurality of curved portions elastically deform under stress with the front cross member supported, and the plurality of curved portions restore to a pre-deformed configuration after removal of the external force.
7. The structure of claim 1, wherein the plurality of curved portions are supported by the front cross member and undergo inelastic permanent energy absorption deformation when subjected to a force.
8. The structure of claim 1, wherein the number of the bent portions is 2, and the bent portions have an S-shape.
9. An automobile seat characterized by comprising the anti-dive energy-absorbing structure of an automobile seat according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011392550.4A CN112477713A (en) | 2020-12-01 | 2020-12-01 | Automobile seat and anti-submergence energy absorption structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011392550.4A CN112477713A (en) | 2020-12-01 | 2020-12-01 | Automobile seat and anti-submergence energy absorption structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112477713A true CN112477713A (en) | 2021-03-12 |
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ID=74939702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011392550.4A Pending CN112477713A (en) | 2020-12-01 | 2020-12-01 | Automobile seat and anti-submergence energy absorption structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112477713A (en) |
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2020
- 2020-12-01 CN CN202011392550.4A patent/CN112477713A/en active Pending
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