CN113696802B - Automobile seat and emergency extension protection method - Google Patents
Automobile seat and emergency extension protection method Download PDFInfo
- Publication number
- CN113696802B CN113696802B CN202111165596.7A CN202111165596A CN113696802B CN 113696802 B CN113696802 B CN 113696802B CN 202111165596 A CN202111165596 A CN 202111165596A CN 113696802 B CN113696802 B CN 113696802B
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- seat
- cavity
- cushion
- liquid
- headrest
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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
- B60N2/90—Details or parts not otherwise provided for
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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
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/07—Slide construction
- B60N2/0722—Constructive details
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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
- B60N2/427—Seats or parts thereof displaced during a crash
- B60N2/42727—Seats or parts thereof displaced during a crash involving substantially rigid displacement
- B60N2/42736—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the whole seat
Abstract
The invention discloses an automobile seat and an emergency extension protection method, wherein the seat comprises a headrest assembly, a backrest assembly, a seat cushion assembly, a seat frame and a seat adjusting mechanism fixed on an automobile chassis; the headrest assembly comprises a headrest framework and a headrest cushion; the backrest assembly comprises a backrest framework and a backrest cushion; the seat cushion assembly includes a seat frame and a seat cushion; one or more of the headrest assembly, the backrest assembly and the seat cushion assembly are provided with a seat emergency extension protection mechanism; the emergency extension protection mechanism of the seat can extend a shielding body from the outer oblique front sides of the two sides of the headrest cushion and/or the backrest cushion and/or the outer oblique upper sides of the two sides of the seat cushion when the automobile is subjected to severe collision; the plate-shaped protection device can be used for rapidly extending outwards from two sides of the seat when an automobile encounters severe collision, so that the seat forms an enclosing space with an open front end, and the protection capability of passengers in various complex severe automobile accidents is remarkably improved.
Description
Technical Field
The invention belongs to the field of automobile industry, and particularly relates to an automobile seat and an emergency extension protection method.
Background
In the event of a car accident, car seats are an integral part of the passive protection. Firstly, in an accident, the automobile seat ensures that an occupant is in a living space of the automobile seat, prevents the occupant from flying out, and ensures that the occupant maintains a certain posture in the accident occurrence process, so that the restraint system can fully exert the protection performance of the restraint system. In collisions, seats are the most important safety device for occupant protection.
Because the collision forms, the intensity and the collision angles of the automobiles are very various, even the situations of rolling, side collision, oblique collision, sliding collision and the like of the automobiles exist, the existing safety bags and safety airbags mainly protect the front collision situations of passengers, and the protection performance of the safety bags and safety airbags is not enough to adapt to the protection of the passengers in various complex collisions; the risk of injury and even death of the occupants in the event of a crash, in particular in the event of a severe crash, is therefore still high.
Disclosure of Invention
The invention aims at: the automobile seat and the emergency extension protection method can be used for rapidly extending the plate-shaped protection from two sides of the seat when an automobile encounters a severe collision, so that the seat forms an enclosed space with the front end open, and the protection capability of passengers in various complex severe automobile accidents is remarkably improved.
The technical scheme adopted by the invention is as follows:
an automobile seat comprises a headrest assembly, a backrest assembly, a seat cushion assembly, a seat frame and a seat adjusting mechanism fixed on an automobile chassis; the headrest assembly comprises a headrest framework and a headrest cushion; the backrest assembly comprises a backrest framework and a backrest cushion; the seat cushion assembly includes a seat frame and a seat cushion; one or more of the headrest assembly, the backrest assembly and the seat cushion assembly are provided with a seat emergency extension protection mechanism; the emergency extension protection mechanism of the seat can extend out of the shielding body from the outer oblique front sides of the two sides of the headrest cushion and/or the backrest cushion and/or the outer oblique upper sides of the two sides of the seat cushion when the automobile is impacted severely.
The seat emergency extension protection mechanism comprises a closed cavity enclosed by a rigid framework; the closed cavity comprises a middle explosion cavity, liquid cavities positioned at two sides of the explosion cavity and a guide cavity connected with the outer side of the liquid cavity and extending obliquely forwards and/or obliquely upwards towards the outer side of the headrest cushion and/or the backrest cushion; an inverted splayed shape is formed between the two guide cavities; the explosion cavity is continuously connected with the liquid cavity and is separated by a piston capable of sliding in the liquid cavity in a sealing way; the liquid cavity and the guide cavity are in smooth transition and are separated by a rupturable waterproof film; an air explosion device is arranged in the air explosion cavity; electrorheological fluid is filled in the fluid cavity; the outer end opening of the guide cavity is closed by an insulation sleeve which can expand outwards; the opposite sides of the inner wall of the guide cavity and the inner wall of the insulating sleeve are provided with flexible electrodes or are coated with conductive paint; an external circuit controls the instant solidification of the electrorheological fluid through the flexible electrode or the conductive coating.
Wherein, the insulating sleeve is compressible ripple structure or elastic material.
Wherein the aeration device adopts an aeration technology of an air bag; the aeration device and the safety airbag are triggered synchronously.
The seat adjusting mechanism comprises a buffer mechanism which can trigger the whole seat to buffer moving back and forth when the automobile is subjected to severe collision.
The buffer mechanism comprises two straight rails corresponding to two supporting legs of the chair frame, a central tube arranged between the two straight rails and arc-shaped tubes connected with two ends of the central tube through two ends of the two straight rails; the upper end face of the straight rail is provided with an opening along the length direction; the lower parts of the chair frame support legs are clamped into the straight rails, and the upward extending parts extend out of the connecting seat framework through the openings; the lower parts of the chair frame support legs can slide along the length direction of the straight rail; the two ends of the lower part of the chair frame support leg are respectively provided with a corrugated telescopic pipe; the corrugated expansion pipe is clamped in the straight rail and can expand and contract along the length direction of the straight rail; one end of the corrugated expansion pipe is fixedly connected with the end part of the arc-shaped pipe in a sealing way, and the other end of the corrugated expansion pipe is fixedly connected with a sliding block in a sealing way; the sliding block is arranged in the straight rail and can slide along the length direction of the straight rail; the sliding block is fixedly connected with the lower part of the chair frame support leg; the central tube, the arc-shaped tube and the corrugated expansion tube are filled with liquid; an electromagnetic valve is arranged on the central tube to control the flow of liquid.
Wherein the liquid is electrorheological liquid; the opposite sides of the inner walls of the corrugated expansion pipe, the arc pipe and the central pipe are provided with flexible electrodes or are coated with conductive paint; an external circuit controls the instant solidification of the electrorheological fluid through the flexible electrode or the conductive coating.
Wherein, the corrugated expansion pipe, the arc pipe and the central pipe are made of insulating materials or are subjected to insulating treatment on the outer surfaces.
Wherein the seat adjusting mechanism is generally flat "≡shaped.
An emergency extension protection method for an automobile seat, comprising the following steps:
(1) the automobile encounters severe impact in the front, the side or the rear, and the sensor triggers the emergency extension protection mechanism of the seat to start;
(2) the explosion device generates explosive gas, the explosive gas expands in the explosion cavity to push pistons at two sides to slide outwards, and electrorheological fluid in the extrusion liquid cavity is pushed to break the waterproof film and enter the guide cavity, and the insulating sleeve is continuously impacted forwards after the guide cavity is filled with the electrorheological fluid, so that the insulating sleeve expands outwards;
(3) when the piston slides to the limit, an external circuit simultaneously applies an electric field to the electrorheological fluid in the guide cavity and the insulating sleeve, and the electrorheological fluid in the guide cavity and the insulating sleeve is instantly solidified into solid or colloid with high viscoelasticity, so that the protection range of the seat extends outwards;
(4) the buffer mechanism is triggered at the same time of the step (1), and the electromagnetic valve opens all or part of the liquid passages; the external circuit applies an electric field to the electrorheological fluid in the buffer mechanism, so that the electrorheological fluid is instantaneously converted into high-viscosity fluid, and the seat is immediately converted into a state capable of slowly moving forwards and backwards to absorb impact force.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. the invention can extend the platy protection outwards from the two sides of the seat very quickly when the automobile encounters severe collision, so that the seat forms an enclosed space with the front end open, and the protection capability of passengers in various complex severe car accidents is obviously improved.
2. According to the invention, the characteristics of gas explosion technology of an automobile safety airbag and the characteristic of instant viscosity conversion of electrorheological fluid under the action of an electric field are combined, when an automobile is in severe collision, an explosion device synchronous with the safety airbag generates gas explosion, the electrorheological fluid in a liquid cavity breaks through a waterproof film and instantly enters a guide cavity and pushes an insulating sleeve to expand and extend outwards under the pushing action of a piston, and the electrorheological fluid filled in the guide cavity and the insulating sleeve is instantly converted into solid or colloid with high viscoelasticity through an external electric field under the set time of data obtained through a test, so that a protection space is enclosed by extending forwards from the side surface of a seat, passengers are prevented from flying away from the seat (the situation is common in severe collision or rolling of the side surface of the automobile), and the automobile is effectively prevented from being scratched or stabbed by sharp parts broken by the side surface in the collision process; the swing space for limiting the cervical vertebra and the waist can be effectively protected, and the neck or the waist is prevented from being sprain or broken when an occupant impacts sideways; the change of the explosion gas and the electrorheological fluid in the electric field can almost instantaneously occur, so that the reaction speed of the whole device is extremely high, and severe sudden car accidents can be coped with; the solidification degree of the electrorheological fluid can be controlled by an electric field, and even the viscoelasticity can be automatically adjusted according to the collision degree and the collision position of the automobile, so that the optimal protection effect is achieved; in addition, the emergency air bag which is ejected violently can be properly blocked, the occurrence of the condition of being injured by the emergency air bag is reduced, particularly, the emergency air bag of many automobiles at present generally adopts a secondary air explosion mode, the first time is mild, the second time is violent, the action speed of the emergency air bag is completely enough to be achieved before the second air explosion of the emergency air bag, a very safe protection space can be enclosed together with the emergency air bag, the protection capability of passengers in serious car accidents is obviously improved, and the lives of the passengers are saved.
3. The seat adjusting mechanism is different from the rigid complex structural part of the existing adjusting mechanism, flexible adjustment is realized by utilizing liquid, the device can be controlled by an electromagnetic valve, the structure is simple, the parts are few, the degree of integration is high, the device can be manufactured and installed in a modularized manner, the cost is low, no pause feeling is caused in the front-back adjusting process of the seat, no gear limit is caused, and the required push-pull force is small, so that passengers can adjust to the most comfortable operation position of the passenger, and the seat adjusting mechanism is suitable for large-scale production and configuration and can be used for refitting the existing vehicle seat; the movement effect similar to hydraulic buffering of the seat can be realized only by adjusting the flux of the electromagnetic valve 56 in the severe collision process, so that the injury caused by the fact that an occupant flies forward and is returned by the safety airbag in the front collision process can be avoided, and the severe collision of the seat to a human body in the severe rear-end collision process can also be avoided; and if the electrorheological fluid is adopted in the liquid, the automatic adaptive adjustment can be realized by the instantaneous adjustment characteristic of the electric field on the viscosity of the electrorheological fluid according to the intensity of collision, so as to make the optimal buffering effect.
Drawings
FIG. 1 is a schematic illustration of the present invention;
FIG. 2 is a schematic horizontal cross-sectional view of the emergency extension protection mechanism of the headrest assembly of the present invention in a normal state;
FIG. 3 is a schematic horizontal cross-sectional view of the emergency extension protection mechanism on the headrest assembly in an emergency state;
FIG. 4 is a schematic horizontal cross-sectional view of the emergency extension protection mechanism on the backrest assembly in a normal state;
FIG. 5 is a schematic horizontal cross-sectional view of the emergency extension protection mechanism on the backrest assembly in an emergency;
FIG. 6 is a vertical cross-sectional schematic view of the emergency extension protection mechanism on the seat cushion assembly in a normal state;
FIG. 7 is a schematic vertical cross-sectional view of the emergency extension protection mechanism on the seat cushion assembly in an emergency state;
FIG. 8 is a schematic horizontal cross-sectional view of a seat adjustment mechanism;
FIG. 9 isbase:Sub>A schematic vertical cross-sectional view at A-A of FIG. 8;
FIG. 10 is a schematic vertical cross-sectional view at B-B in FIG. 8;
fig. 11 is a schematic vertical sectional view at C-C in fig. 8.
The marks in the figure: 1. an emergency extension protection mechanism; 11. a closed cavity; 111. an explosion chamber; 112. a liquid chamber; 113. a guide lumen; 114. a piston; 115. a gas explosion device; 116. electrorheological fluid; 117. a water-blocking film; 118. an insulating sleeve; 12. a headrest cushion; 22. a back cushion; 32. a seat cushion; 4. a chair frame; 41. a lower part; 42. an upward extension; 5. a seat adjustment mechanism; 51. a straight rail; 511. an opening; 52. a central tube; 53. an arc tube; 54. corrugated telescopic pipe; 55. a slide block; 56. a solenoid valve.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
An automobile seat comprises a headrest assembly, a backrest assembly, a seat cushion assembly, a seat frame 4 and a seat adjusting mechanism 5 fixed on an automobile chassis; the headrest assembly includes a headrest framework and a headrest cushion 12; the backrest assembly includes a backrest frame and a backrest cushion 22; the seat cushion assembly includes a seat frame and a seat cushion 32; one or more of the headrest assembly, the backrest assembly and the seat cushion assembly are provided with a seat emergency extension protection mechanism 1; the seat emergency extension protection mechanism 1 can extend a shielding body from the outside of the headrest cushion 12 and/or the back cushion 22 to the front and/or from the outside of the seat cushion 32 to the upper and lower sides when the automobile is in a severe collision.
Further, the seat emergency extension protection mechanism 1 comprises a closed cavity 11 enclosed by a rigid framework; the closed cavity 11 comprises a middle explosion cavity 111, liquid cavities 112 positioned at two sides of the explosion cavity 111, and a guide cavity 113 connected with the outer side of the liquid cavity 112 and extending obliquely forwards towards the outer side of the headrest cushion 12 and/or the backrest cushion 22 and/or obliquely upwards towards the outer side of the seat cushion 32; an inverted splayed shape is formed between the two guide cavities 113; the explosion chamber 111 is continuously connected with the liquid chamber 112 and is separated by a piston 114 which can slide in the liquid chamber 112 in a sealing manner; the liquid cavity 112 and the guide cavity 113 are in smooth transition and are separated by a rupturable waterproof film 117; an explosion device 115 is arranged in the explosion cavity 111; the liquid cavity 112 is filled with electrorheological liquid 116; the outer end opening of the guide cavity 113 is closed by an insulation sleeve 118 which can expand outwards and extend; the opposite sides of the inner walls of the guide cavity 113 and the insulating sleeve 118 are provided with flexible electrodes or coated with conductive paint; an external circuit controls the instant solidification of the electrorheological fluid through the flexible electrode or the conductive coating.
Further, the insulating sleeve 118 is a compressible corrugated structure or an elastic material.
Further, the aeration device 115 adopts an aeration technology of an airbag; the aeration device 115 is triggered in synchronization with the airbag.
Further, the seat adjusting mechanism 5 includes a cushion mechanism that can trigger the entire seat to cushion back and forth when the automobile is subjected to a severe collision.
Further, the buffer mechanism comprises two straight rails 51 corresponding to two legs of the chair frame 4, a central tube 52 arranged between the two straight rails 51, and an arc-shaped tube 53 connected with two ends of the central tube 52 by two ends of the two straight rails 51; the upper end surface of the straight rail 51 is provided with an opening 511 along the length direction; the lower parts 41 of the legs of the chair frame 4 are clamped into the straight rails 51, and the upward extending parts 42 extend out of the connecting seat framework through the openings 511; the lower parts 41 of the legs of the chair frame 4 can slide along the length direction of the straight rail 51; the two ends of the lower part 41 of the supporting leg of the chair frame 4 are respectively provided with a corrugated telescopic pipe 54; the corrugated expansion pipe 54 is clamped in the straight rail 51 and can expand and contract along the length direction of the straight rail 51; one end of the corrugated expansion pipe 54 is fixedly connected with the end part of the arc-shaped pipe 53 in a sealing way, and the other end of the corrugated expansion pipe is fixedly connected with a sliding block 55 in a sealing way; the sliding block 55 is arranged in the straight rail 51 and can slide along the length direction of the straight rail 51; the sliding block 55 is fixedly connected with the lower part 41 of the supporting leg of the chair frame 4; the central tube 52, the arc-shaped tube 53 and the corrugated expansion tube 54 are filled with liquid; a solenoid valve 56 is provided on the central tube 52 to control the flow of liquid.
Further, the liquid is electrorheological liquid; the flexible electrodes or conductive paint is coated on the opposite sides of the inner walls of the corrugated expansion pipe 54, the arc-shaped pipe 53 and the central pipe 52; an external circuit controls the instant solidification of the electrorheological fluid through the flexible electrode or the conductive coating.
Further, the bellows 54, the arc tube 53 and the central tube 52 are made of insulating materials or are insulated on the outer surface.
Further, the seat adjusting mechanism 5 is generally flat "≡shaped.
An emergency extension protection method for an automobile seat, comprising the following steps:
(1) the automobile encounters severe impact in the front, the side or the rear, and the sensor triggers the emergency extension protection mechanism 1 of the seat to start;
(2) the explosive gas device 115 generates explosive gas, the explosive gas expands in the explosive gas cavity 111 to push the pistons 114 at two sides to slide outwards, the electrorheological fluid 116 in the extruding liquid cavity 112 is pushed to slide outwards to break the waterproof film 117 into the guide cavity 113, and the insulating sleeve 118 is continuously impacted forwards after the guide cavity 113 is filled, so that the insulating sleeve 118 expands outwards;
(3) when the piston 114 slides to a limit, an external circuit simultaneously applies an electric field to the electrorheological fluid 116 in the guide cavity 113 and the insulating sleeve 118, and the electrorheological fluid 116 in the guide cavity 113 and the insulating sleeve is instantly solidified into solid or colloid with high viscoelasticity, so that the protection range of the seat extends outwards;
(4) at the same time as step (1) occurs, the buffer mechanism is also triggered, and the solenoid valve 56 opens all or part of the liquid path; the external circuit applies an electric field to the electrorheological fluid in the buffer mechanism, so that the electrorheological fluid is instantaneously converted into high-viscosity fluid, and the seat is immediately converted into a state capable of slowly moving forwards and backwards to absorb impact force.
In normal use, when the front and rear positions of the seat are required to be adjusted, the position of the seat can be fixed by controlling the electromagnetic valve 56 to open the liquid passage, pushing the seat to a proper position forwards and backwards and closing the liquid passage by the electromagnetic valve 56.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. An automobile seat comprises a headrest assembly, a backrest assembly, a seat cushion assembly, a seat frame (4) and a seat adjusting mechanism (5) fixed on an automobile chassis; the headrest assembly includes a headrest framework and a headrest cushion (12); the backrest assembly includes a backrest frame and a backrest cushion (22); the seat cushion assembly includes a seat frame and a seat cushion (32); the method is characterized in that: one or more of the headrest assembly, the backrest assembly and the seat cushion assembly are provided with a seat emergency extension protection mechanism (1); the seat emergency extension protection mechanism (1) can extend a shielding body obliquely forwards outwards from two sides of the headrest cushion (12) and/or the backrest cushion (22) and/or obliquely upwards from two sides of the seat cushion (32) when the automobile is subjected to severe collision; the seat emergency extension protection mechanism (1) comprises a closed cavity (11) enclosed by a rigid framework; the closed cavity (11) comprises an explosion cavity (111) in the middle, liquid cavities (112) positioned at two sides of the explosion cavity (111) and a guide cavity (113) connected with the outer side of the liquid cavity (112) and extending obliquely forwards outside the headrest cushion (12) and/or the backrest cushion (22) and/or obliquely upwards outside the seat cushion (32); an inverted splayed shape is formed between the two guide cavities (113); the explosion cavity (111) is continuously connected with the liquid cavity (112) and is separated by a piston (114) capable of sliding in the liquid cavity (112) in a sealing way; the liquid cavity (112) and the guide cavity (113) are in smooth transition and are separated by a rupturable waterproof film (117); an explosion device (115) is arranged in the explosion cavity (111); the liquid cavity (112) is filled with electrorheological liquid (116); the outer end opening of the guide cavity (113) is closed by an insulation sleeve (118) which can expand outwards; the opposite sides of the inner wall of the guide cavity (113) and the insulating sleeve (118) are provided with flexible electrodes or are coated with conductive paint; an external circuit controls the instant solidification of the electrorheological fluid through the flexible electrode or the conductive coating; the seat adjusting mechanism (5) comprises a buffer mechanism which can trigger the whole seat to buffer back and forth when the automobile is subjected to severe collision; the buffer mechanism comprises two straight rails (51) corresponding to two supporting legs of the chair frame (4), a central tube (52) arranged between the two straight rails (51) and arc-shaped tubes (53) connected with two ends of the central tube (52) through two ends of the two straight rails (51); an opening (511) is formed in the upper end face of the straight rail (51) along the length direction of the straight rail; the lower parts (41) of the supporting legs of the chair frame (4) are clamped into the straight rails (51), and the upward extending parts (42) extend out of the connecting seat framework through the openings (511); the lower parts (41) of the legs of the chair frame (4) can slide along the length direction of the straight rail (51); two ends of the lower part (41) of the supporting leg of the chair frame (4) are respectively provided with a corrugated telescopic pipe (54); the corrugated expansion pipe (54) is clamped in the straight rail (51) and can expand and contract along the length direction of the straight rail (51); one end of the corrugated expansion pipe (54) is fixedly connected with the end part of the arc-shaped pipe (53) in a sealing way, and the other end of the corrugated expansion pipe is fixedly connected with a sliding block (55) in a sealing way; the sliding block (55) is arranged in the straight rail (51) and can slide along the length direction of the straight rail (51); the sliding block (55) is fixedly connected with the lower part (41) of the supporting leg of the chair frame (4); the central tube (52), the arc-shaped tube (53) and the corrugated expansion tube (54) are filled with liquid; a solenoid valve (56) is provided on the central tube (52) to control the flow of liquid.
2. A car seat as claimed in claim 1, characterized in that: the insulating sleeve (118) is of a compressible corrugated structure or an elastic material.
3. A car seat as claimed in claim 1, characterized in that: the gas explosion device (115) adopts the gas explosion technology of an airbag; the gas explosion device (115) is triggered synchronously with the safety airbag.
4. A car seat as claimed in claim 1, characterized in that: the liquid is electrorheological liquid; the flexible electrodes or conductive paint is coated on the opposite sides of the inner walls of the corrugated expansion pipe (54), the arc-shaped pipe (53) and the central pipe (52); an external circuit controls the instant solidification of the electrorheological fluid through the flexible electrode or the conductive coating.
5. An automobile seat as claimed in claim 4, wherein: the corrugated expansion pipe (54), the arc-shaped pipe (53) and the central pipe (52) are made of insulating materials or are subjected to insulating treatment on the outer surfaces.
6. A car seat as claimed in claim 1, characterized in that: the seat adjusting mechanism (5) is generally flat "≡shaped.
7. A method of emergency extension protection of a car seat using the car seat of claim 5, comprising the steps of:
(1) the automobile encounters severe impact in the front, the side or the rear, and the sensor triggers the emergency extension protection mechanism (1) of the seat to start;
(2) the explosion device (115) generates explosive gas, the explosive gas expands in the explosion cavity (111) to push pistons (114) at two sides to slide outwards, electrorheological fluid (116) in the liquid pushing cavity (112) slides outwards to break a waterproof film (117) into the guide cavity (113), and the insulating sleeve (118) is continuously impacted forwards after the guide cavity (113) is filled, so that the insulating sleeve (118) expands outwards;
(3) when the piston (114) slides to a limit, an external circuit simultaneously applies an electric field to the electrorheological fluid (116) in the guide cavity (113) and the insulating sleeve (118), and the electrorheological fluid (116) in the guide cavity and the insulating sleeve are instantly solidified into solid or colloid with high viscoelasticity, so that the protection range of the seat is outwards extended;
(4) while step (1) is taking place, the buffer mechanism is also triggered, the solenoid valve (56) opens all or part of the liquid passage; the external circuit applies an electric field to the electrorheological fluid in the buffer mechanism, so that the electrorheological fluid is instantaneously converted into high-viscosity fluid, and the seat is immediately converted into a state capable of slowly moving forwards and backwards to absorb impact force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111165596.7A CN113696802B (en) | 2021-10-01 | 2021-10-01 | Automobile seat and emergency extension protection method |
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| CN202111165596.7A CN113696802B (en) | 2021-10-01 | 2021-10-01 | Automobile seat and emergency extension protection method |
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| CN113696802B true CN113696802B (en) | 2023-04-21 |
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| CN101952139A (en) * | 2008-02-05 | 2011-01-19 | 伯斯有限公司 | Suspended seat autolocking |
| CN102317110A (en) * | 2009-05-11 | 2012-01-11 | 丰田自动车株式会社 | Vehicle seat |
| CN206653961U (en) * | 2017-04-26 | 2017-11-21 | 徐兆恒 | Multi-purpose vehicle(MPV) safety seat |
| CN108528297A (en) * | 2018-03-01 | 2018-09-14 | 昆明创培知识产权服务有限公司 | A kind of magnetorheological Anti-collision seat of automobile |
| CN208715029U (en) * | 2018-05-30 | 2019-04-09 | 长沙理工大学 | A kind of automotive side face collision safety seat unit |
| CN109532590A (en) * | 2018-12-06 | 2019-03-29 | 深圳朗昇贸易有限公司 | A kind of safety chair seats of car |
| CN111267769A (en) * | 2019-12-20 | 2020-06-12 | 浙江零跑科技有限公司 | Multi-buffering safety airbag on rear row side surface |
| CN213007718U (en) * | 2020-05-26 | 2021-04-20 | 广汽零部件有限公司 | Seat lifting mechanism and system capable of reducing collision failure risk |
| CN112027093A (en) * | 2020-07-27 | 2020-12-04 | 南京航空航天大学 | Civil aviation aircraft anticollision seat |
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| CN113696802A (en) | 2021-11-26 |
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