CN111204267A - Lightweight car seat skeleton - Google Patents
Lightweight car seat skeleton Download PDFInfo
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- CN111204267A CN111204267A CN201910636782.0A CN201910636782A CN111204267A CN 111204267 A CN111204267 A CN 111204267A CN 201910636782 A CN201910636782 A CN 201910636782A CN 111204267 A CN111204267 A CN 111204267A
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- seat
- framework
- cushion
- backrest
- connecting plate
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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
- B60N2/68—Seat frames
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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
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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
- B60N2/16—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 height-adjustable
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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
- B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
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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
- B60N2/62—Thigh-rests
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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
- B60N2/64—Back-rests or cushions
- B60N2/643—Back-rests or cushions shape of the back-rests
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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
- B60N2/68—Seat frames
- B60N2/682—Joining means
Abstract
A light-weighted car seat skeleton aims at solving the technical problem that the light-weighted effect of the car seat skeleton in the prior art is poor. The invention comprises a cushion framework and a backrest framework connected with the cushion framework, wherein a cushion framework body of the cushion framework is connected with the backrest framework body through inner and outer back connecting plates made of aluminum alloy materials, the cushion framework body comprises a seat basin, preceding stay tube and back stay tube, the seat basin of aluminum alloy is located the cushion skeleton and keeps away from the one end of back skeleton, the back stay tube of aluminum alloy is located the junction of back skeleton and cushion skeleton, back stay tube and end basin are connected to cushion skeleton side wall, the preceding stay tube of aluminum alloy is established in end basin below, back skeleton body includes back return bend and headrest pipe stay tube, the back return bend of magnesium alloy is connected with the cushion skeleton through inside and outside back connecting plate, the headrest pipe stay tube of aluminum alloy is located the one end that the cushion skeleton was kept away from to the back skeleton, headrest pipe stay tube is connected with the back return bend.
Description
Technical Field
The invention relates to the field of automobile seats, in particular to a light automobile seat framework.
Background
The existing automobile seat framework comprises a seat cushion framework and a backrest framework connected with the seat cushion framework, the seat cushion framework and the backrest framework are formed by processing steel materials such as steel pipes, steel plates and steel wires, and the automobile seat framework is large in overall mass and high in automobile oil consumption. The lightweight of the existing automobile seat mainly aims at the structural optimization design of a seat framework structure, and the lightweight design of the seat framework is realized from the aspects of reducing the material thickness and structural topology optimization, but the existing seat design scheme generally has smaller design margin, the weight reduction effect brought by the material thickness optimization is limited, the structural appearance is often changed by the topology optimization, and a new assembly line needs to be designed in the production and processing process, so that the manufacturing cost is increased; in addition, the overall structure of current car seat skeleton often chooses for use single material, can't be fine reaches the effect of lightweight. Based on the problems, the novel design idea is to optimally design the seat framework material, make full use of the performance advantages of different materials and select corresponding lightweight materials aiming at the structures at different positions of the seat framework, so that the overall lightweight of the automobile seat framework is realized.
Chinese patent No. CN 201610799145.1 discloses a novel lightweight car seat frame, which includes an inverted "U" shaped back main steel tube made of aluminum alloy composite material, back side support steel wires made of aluminum alloy are fixed on two legs of the side of the back main steel tube through back connecting brackets made of high-strength steel, and support steel wires made of aluminum alloy with concave-convex shape are connected on two sides of the upper end of the back main steel tube; two legs of the side surface of the backrest main steel pipe are flat-shaped, and the backrest connecting bracket is fixed on the backrest main steel pipe in a bolt connection mode; the section of the backrest main steel pipe is a special ellipse, and a variable material thickness reinforcing rib is added inside the backrest main steel pipe; the thickness of the reinforcing ribs in the main steel pipe of the backrest gradually changes from 2mm at two ends to 1mm in the middle; the backrest comprises a backrest main steel pipe, a backrest guide pipe, a seat headrest guide pipe and a backrest main steel pipe, wherein the backrest main steel pipe is arranged on the backrest main steel pipe; the aluminum alloy composite material is in a T6 state of 6 series aluminum alloy in aluminum alloy series and is formed by an extrusion process.
On the basis of fully understanding and applying the mechanical principle of the automobile seat, the aluminum alloy is used for replacing steel, so that the weight of the seat back framework is greatly reduced while the requirement on the same strength is met, and the aluminum alloy material is more corrosion-resistant than a metal material, so that the service life is prolonged, the structure and the process are simplified, and the production period and the cost are reduced; however, in the invention, the whole material of the seat frame is replaced by the steel material, the corresponding light-weight material is not selected according to the structures at different positions of the seat frame, and the required strength may not be achieved by adopting the aluminum alloy for preparing part of the structures, so that certain risk is caused in practical application.
Chinese patent with application number CN 201711423754.8 discloses an aluminum magnesium alloy automobile seat frame structure, which comprises a seat cushion frame and a backrest frame connected with the seat cushion frame, wherein the seat cushion frame is an integral member formed by aluminum magnesium alloy die casting, the seat cushion frame comprises a seat cushion body and two connecting parts i formed by bending and extending the rear end of the seat cushion body upwards, the two connecting parts i are mutually symmetrical, the front side of the connecting part i is an arc-shaped curved surface i protruding forwards, the rear side of the connecting part i forms an arc-shaped groove i, and the outer side wall of the arc-shaped groove i is respectively provided with a bolt connecting hole i; the backrest framework is also an integral component formed by aluminum magnesium alloy die-casting, the backrest framework comprises a backrest body and two connecting parts II formed by downward extending from two ends of the lower side of the backrest body respectively, the two connecting parts are symmetrical mutually, the front sides of the connecting parts are forward protruding arc-shaped curved surfaces II, the rear sides of the connecting parts form arc-shaped grooves II, the outer side walls of the arc-shaped grooves II are respectively provided with bolt connecting holes II, the bending amplitude of the arc-shaped curved surfaces I is basically the same as that of the arc-shaped curved surfaces II, the cushion framework is connected with the backrest framework through the two connecting parts I and the two connecting parts II in a butt joint mode, and the cushion framework is connected with the backrest framework into a whole through fixing bolts when the bolt connecting holes I are opposite to the bolt.
In the patent, the cushion framework and the backrest framework are all integrated components formed by aluminum magnesium alloy in a die-casting mode, the aluminum magnesium alloy is high in strength and light in weight, the frameworks are all formed by aluminum magnesium alloy in a die-casting mode, the weight of the front-row cushion and the backrest framework is reduced by 40% compared with that of the traditional frameworks, and the light weight of a seat assembly and an automobile can be realized, so that the fuel consumption is reduced, and the emission is reduced; however, in the above invention, the whole structure is replaced by the aluminum magnesium alloy, the whole structure is still made of a single material, the light weight of the seat frame is generated by simply replacing the material, the performance advantages of different materials are not utilized, and the comfort of the seat cannot be improved while the light weight of the seat frame is realized.
Disclosure of Invention
In order to overcome the technical problems that the overall structure of the automobile seat framework is usually made of a single material and the light-weight effect of the automobile seat framework is poor in the prior art, the invention provides the light-weight automobile seat framework.
In order to achieve the above object, the present invention adopts the following technical solutions.
A light automobile seat framework comprises a cushion framework and a backrest framework connected with the cushion framework, wherein a cushion framework body of the cushion framework is connected with a backrest framework body of the backrest framework through inner and outer side back connecting plates made of aluminum alloy, the cushion framework body comprises a seat basin, a front supporting tube and a rear supporting tube, the seat basin made of aluminum alloy is positioned at one end, away from the backrest framework, of the cushion framework body, the rear supporting tube made of aluminum alloy is positioned at the connecting part of the backrest framework and the cushion framework, a side wall of the cushion framework extends to the end part of the seat basin from the end part of the rear supporting tube, the front supporting tube made of aluminum alloy is fixed below the seat basin, the backrest framework body comprises a backrest elbow and a headrest conduit supporting tube, the backrest made of magnesium alloy is connected with the cushion framework body through the inner and outer side back connecting plates, and the headrest conduit made of aluminum alloy is positioned at one end, away from, the headrest conduit supporting tube is fixedly connected with the backrest elbow.
The whole quality of the seat skeleton of steel preparation for the tradition car is big, lead to the gas consumption height of automobile, for realizing the lightweight of seat skeleton, need carry out the optimal design to the seat skeleton structure, often including two kinds of lightweight design thoughts of reducing material thickness and structural topology optimization, but the heavy effect of subtracting that material thickness optimization brought is limited, and topological optimization often can change the structure appearance of seat skeleton, bring inconvenience for production and processing, just be accompanied with the rapid development of material science based on the above-mentioned problem, the material selection lightweight becomes the mainstream thinking of present seat skeleton lightweight design. In the existing material selection and light weight design of the seat framework, the whole material of the seat framework is usually replaced, and the aluminum alloy and the aluminum-magnesium alloy have small mass and high strength, so that the whole material of the seat framework is usually replaced by the steel material directly, and the corresponding light weight material is not selected according to structures at different positions of the seat framework, so that the advantages of the material selection and light weight design cannot be fully displayed. Compared with simple lightweight material replacement, the method provided by the invention has the advantages that the structure of the seat framework at different positions is subjected to sufficient strength analysis, and lightweight material selection is carried out based on experimental data, and the method specifically comprises the following steps: the inner and outer back connecting plates, the seat basin, the front supporting tube, the rear supporting tube and the headrest conduit supporting tube are made of aluminum alloy materials, and the backrest bent tube is made of magnesium alloy materials; the aluminum alloy has low density, higher strength which is close to or exceeds high-quality steel, good plasticity and capability of being processed into various sections, and when the aluminum alloy is die-cast into the supporting piece, the weight of the supporting piece can be reduced on the premise of meeting the supporting strength; the backrest elbow is a main supporting piece for the back of a passenger, and in the driving process of a vehicle, in order to improve the riding comfort of the passenger and reduce the bumping feeling, the backrest elbow needs to have good shock absorption performance, the magnesium alloy is an alloy formed by adding other elements on the basis of magnesium, the magnesium alloy is small in density, high in strength, large in elastic modulus, good in shock absorption performance and larger in impact load bearing capacity than aluminum alloy, the backrest elbow is prepared from the magnesium alloy, the light weight of the supporting piece is guaranteed, good shock absorption performance is provided, and the riding comfort of the passenger can be improved. The automobile seat is characterized in that a structural part with a certain mass ratio in the automobile seat is made of magnesium alloy, aluminum alloy and high-strength steel, the magnesium-aluminum alloy is high in strength and light in weight, the weight of the automobile seat is reduced by 21% compared with that of a traditional framework, and the overall mass is reduced; in addition, the framework is made of the light alloy materials, the structural rigidity is obviously increased, the first-order mode is improved by 10% compared with that of the traditional framework, and the riding comfort of passengers is further improved.
Preferably, the backrest elbow is in an inverted U shape, the inner and outer back connecting plates are welded on the outer side of the vertical section of the backrest elbow, and the concave-convex reinforcing rods are crossed with the vertical section of the backrest elbow and fixedly connected with the vertical section of the backrest elbow.
Because car seat skeleton is frame type structure, consequently need be on the back return bend that is the type of falling U fixed connection stiffener, can improve the intensity of stiffener for the concave-convex shape with the stiffener design.
Preferably, the inner and outer back connecting plates in the shape of a water drop plate comprise large ends and small ends, stress holes for preventing stress concentration are formed in the inner and outer back connecting plates, first bolt holes for connecting the cushion framework body are formed in the large ends of the inner and outer back connecting plates, and the thickness of the inner and outer back connecting plates is 1.4 mm-2.6 mm.
The big end of inside and outside back of the body connecting plate is equipped with the first bolt hole that is used for connecting the cushion skeleton body, and first bolt hole can cause the whole or local production stress concentration or the bulk rigidity weakening of inside and outside back of the body connecting plate, adds on the inside and outside back of the body connecting plate and establishes the stress hole, and the stress on the inside and outside back of the body connecting plate is released in the dispersion to can avoid producing stress concentration. The invention is based on a multi-material and multi-target model of a response surface method and is applied to carry out lightweight design on the automobile seat; taking the material types of all parts of the automobile seat framework as discrete variables, taking the thickness as a continuous variable, taking the total mass reduction and the first-order modal maximization as optimization targets, constructing an approximate model by using a response surface method for optimizing, and then carrying out strength check on an optimized solution; through many times of experiments, when the thickness of the inner and outer back connecting plates is 1.4 mm-2.6 mm, the light weight and the strength coordination of the inner and outer back connecting plates are good.
As preferred, be equipped with the side seat connecting plate between cushion skeleton body and the inside and outside back of the body connecting plate, the side seat connecting plate is circular triangle, the joint strip between two fillets of circular triangle is the indent arc, and the three fillet department of side seat connecting plate all is equipped with the second bolt hole, and a fillet end and the inside and outside back of the body connecting plate of side seat connecting plate pass through bolted connection, and two remaining fillet ends of side seat connecting plate pass through bolted connection with cushion skeleton body.
When needs change the contained angle between cushion skeleton body and the back skeleton body, often realize through rotatory back skeleton body, pass through bolted connection with a fillet end and the inside and outside back connecting plate of side seat connecting plate, two remaining fillet ends of side seat connecting plate pass through bolted connection with cushion skeleton body, can leave sufficient rotation space when guaranteeing cushion skeleton body and back skeleton body joint strength, make the rotation of back skeleton body smooth unimpeded.
Preferably, the side seat connecting plate is made of high-strength steel and comprises an inner side seat connecting plate and an outer side seat connecting plate, the thickness of the inner side seat connecting plate is 1.75-3.25 mm, the thickness of the outer side seat connecting plate is 2.1-3.8 mm, and the outer side of the inner side seat connecting plate is provided with a mosquito-repellent incense-shaped seat angle regulator.
The high-strength steel is high in strength and has a good light-weight characteristic, the side seat connecting plate prepared from the high-strength steel is good in stability, and based on experimental comparison, when the thickness of the inner side seat connecting plate is 1.75 mm-3.25 mm and the thickness of the outer side seat connecting plate is 2.1 mm-3.8 mm, the light weight and the strength of the side seat connecting plate are good in coordination.
As preferred, the cushion skeleton body is connected with the seat skeleton slide rail through the connecting plate, and the connecting plate includes long banding first flange and long banding second flange, and the one end and the back stay tube of first flange cup joint, and the seat skeleton slide rail is connected to the other end of first flange, and the one end and the preceding stay tube of second flange cup joint, and the other end and the seat skeleton slide rail of second flange pass through the bolt and link to each other.
The one end of first flange and second flange with link to each other with back, preceding stay tube respectively, the other end links to each other with seat frame slide rail, first flange and second flange couple together cushion skeleton body and seat frame slide rail and strengthen for connection between them.
Preferably, a seat height adjuster is arranged on one side, provided with the angle adjuster, of the seat cushion frame body, and a seat front-back position adjuster is arranged on the seat frame slide rail.
Seat height adjusters and seat front and rear position adjusters are commercially available, the seat height adjusters can adjust the seat height, and the seat front and rear position adjusters can adjust the seating space of a passenger.
Preferably, the connecting plate is fixed with the side wall of the cushion framework through a spline, the seat basin is connected with the side wall of the cushion framework in a welding mode, and the thickness of the seat basin ranges from 0.84mm to 1.56 mm.
The spline can realize the hookup that moves of connecting plate and cushion skeleton side wall, and the basin links to each other with cushion skeleton side wall welding can improve the intensity of cushion skeleton body when constituting the profile of cushion skeleton body, and based on the experiment comparison, when the thickness of basin is 0.84mm ~1.56mm, the harmony of the lightweight demand of end basin and intensity requirement is better.
Preferably, the two parallel headrest guide sleeve supporting tubes arranged at intervals are connected with the horizontal section of the backrest elbow in a welding mode, the thickness of each headrest guide sleeve supporting tube is 1.4-2.6 mm, and the thickness of the backrest elbow is 1.05-1.95 mm.
Based on experimental comparison, when the thickness of the headrest guide sleeve supporting tube is 1.4 mm-2.6 mm, the compatibility between the lightweight requirement and the strength requirement of the headrest guide sleeve supporting tube is better; when the thickness of the backrest elbow is 1.05 mm-1.95 mm, the coordination of the lightweight requirement and the strength requirement of the backrest elbow is better.
Preferably, the thickness of the front supporting tube is 1.4 mm-2.6 mm.
The front support tube mainly functions to support the bottom basin, and the bottom basin is the main force bearing position of the seat, so that the front support tube needs enough strength.
In conclusion, the invention has the following beneficial effects: (1) the automobile seat is characterized in that a structural part with a certain mass ratio in the automobile seat is made of magnesium alloy, aluminum alloy and high-strength steel, the magnesium-aluminum alloy is high in strength and light in weight, the weight of the automobile seat is reduced by 21% compared with that of a traditional framework, and the overall mass is reduced; (2) the framework is made of the light alloy materials, the structural rigidity is obviously increased, the first-order mode is improved by 10% compared with that of the traditional framework, and the riding comfort of passengers is further improved; (3) the framework of the invention has simple structure, convenient manufacture, reduced process cost and suitability for various automobiles.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is another structural schematic diagram of the whole of the present invention.
Fig. 3 is a schematic view showing the structure of the back frame in the present invention.
Fig. 4 is a schematic structural view of the seat cushion frame of the present invention.
Fig. 5 is another schematic view of the structure of the seat cushion frame of the present invention.
In the figure:
1. the cushion frame body, 2, inside and outside back connecting plate, 2a, big end, 2b, the tip, 2c, the stress hole, 2d, first bolt hole, 3, back skeleton main part, 4, the seat basin, 5, preceding stay tube, 6, back stay tube, 7, the cushion skeleton side wall, 8, the back return bend, 8a, vertical section, 8b, the horizontal segment, 9, the headrest pipe stay tube, 10, the stiffener, 11, the side seat connecting plate, 111, the inside seat connecting plate, 112, the outside seat connecting plate, 11a, the second bolt hole, 12, seat angle regulator, 13, the connecting plate, 131, first flange, 132, the second flange, 14, seat skeleton slide rail, 15, seat height regulator, 16, seat fore-and-aft position regulator.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in fig. 1 to 5, a light automobile seat frame comprises a seat cushion frame and a backrest frame connected with the seat cushion frame, and is characterized in that a seat cushion frame body 1 of the seat cushion frame is connected with a backrest frame body 3 of the backrest frame through inner and outer back connecting plates 2 made of aluminum alloy, the seat cushion frame body comprises a seat basin 4, a front supporting tube 5 and a rear supporting tube 6, the seat basin made of aluminum alloy is positioned at one end of the seat cushion frame body far away from the backrest frame, the rear supporting tube made of aluminum alloy is positioned at the joint of the backrest frame and the seat cushion frame, a seat cushion frame side wall 7 extends from the end of the rear supporting tube to the end of the seat basin, the front supporting tube made of aluminum alloy is fixed below the seat basin, the backrest frame body comprises a backrest elbow 8 and a headrest conduit 9, the backrest elbow made of magnesium alloy is connected with the seat cushion frame through the inner and outer back connecting plates, the headrest conduit supporting tube made of aluminum alloy is positioned at one end of the backrest framework body far away from the cushion framework, and is fixedly connected with the backrest bent tube; the backrest elbow is in an inverted U shape, the inner and outer side back connecting plates are welded on the outer side of the vertical section 8a of the backrest elbow, and the concave-convex reinforcing rods 10 are crossed with the vertical section of the backrest elbow and fixedly connected with the vertical section of the backrest elbow; the inner and outer side back connecting plates in a water drop shape plate shape comprise large ends 2a and small ends 2b, stress holes 2c for preventing stress concentration are formed in the inner and outer side back connecting plates, first bolt holes 2d for connecting the cushion framework body are formed in the large ends of the inner and outer side back connecting plates, and the thickness of the inner and outer side back connecting plates is 1.4 mm-2.6 mm; a side seat connecting plate 11 is arranged between the cushion framework body and the inner and outer side back connecting plates, the side seat connecting plate is in a shape of a rounded triangle, the connecting edge between two rounded corners of the rounded triangle is in an inward concave arc shape, second bolt holes 11a are formed in three rounded corners of the side seat connecting plate, one rounded corner end of the side seat connecting plate is connected with the inner and outer side back connecting plates through bolts, and the remaining two rounded corner ends of the side seat connecting plate are connected with the cushion framework body through bolts; the side seat connecting plate is made of high-strength steel and comprises an inner side seat connecting plate and an outer side seat connecting plate, the thickness of the inner side seat connecting plate is 1.75 mm-3.25 mm, the thickness of the outer side seat connecting plate is 2.1 mm-3.8 mm, and a mosquito-repellent incense-shaped seat angle regulator 12 is arranged on the outer side of the inner side seat connecting plate; the cushion skeleton body is connected with seat skeleton slide rail 14 through connecting plate 13, and the connecting plate includes long banding first flange 131 and long banding second flange 132, and the one end of first flange cup joints with the back stay, and seat skeleton slide rail is connected to the other end of first flange, and the one end of second flange cup joints with preceding stay, and the other end of second flange passes through the bolt with seat skeleton slide rail and links to each other. (ii) a A seat height adjuster 15 is arranged on one side of the seat cushion framework body, which is provided with the angle adjuster, and a seat front-back position adjuster 16 is arranged on a seat framework slide rail; the connecting plate is fixed with the side wall of the cushion framework through a spline, the seat basin is connected with the side wall of the cushion framework in a welding mode, and the thickness of the seat basin is 0.84 mm-1.56 mm; two headrest guide sleeve supporting tubes which are arranged in parallel at intervals are welded with the horizontal section 8b of the backrest elbow, the thickness of each headrest guide sleeve supporting tube is 1.4 mm-2.6 mm, and the thickness of the backrest elbow is 1.05 mm-1.95 mm; the thickness of the front supporting tube is 1.4 mm-2.6 mm.
The light automobile seat framework comprises: the cushion frame comprises a cushion frame body, a seat frame slide rail arranged at the lower end of the cushion frame body and a backrest frame body arranged at the upper end of the cushion frame body. The structure of back skeleton body includes: a headrest guide sleeve supporting tube and a backrest bent tube; the structure of cushion skeleton body includes: the seat basin, the side wall of the seat cushion framework, the front supporting tube and the rear supporting tube. The invention is based on a multi-material and multi-target model of a response surface method and is applied to carry out lightweight design on the automobile seat; the material types of all parts of the automobile seat framework are used as discrete variables, the thickness is used as continuous variables, the total mass reduction and the first-order modal maximization are used as optimization targets, an approximate model is constructed by using a response surface method for optimizing, then the strength of the optimized solution is checked, and the optimal solution of the material thickness with the best strength and light weight harmony is obtained. The method specifically comprises the following steps: the headrest guide sleeve supporting tube is formed by die-casting aluminum alloy with the thickness of 1.6mm, the backrest bent tube is formed by die-casting magnesium alloy with the thickness of 1.8mm, and the headrest guide sleeve supporting tube and the backrest bent tube are directly welded together; the inner side back connecting plate and the outer side back connecting plate are symmetrically arranged on two sides of the backrest framework body, the inner side back connecting plate and the outer side back connecting plate are directly welded on the outer side of the backrest elbow, small holes for preventing stress concentration are reserved on the inner side back connecting plate and the outer side back connecting plate, bolt holes for fixing are reserved at the lower end of the outer side back connecting plate, the inner side back connecting plate and the outer side back connecting plate are made of aluminum alloy, and the thickness of the inner side back connecting; an inner side seat connecting plate and an outer side seat connecting plate are arranged between the cushion framework body and the backrest framework body and are fixed through bolts; the upper end of the inner side seat connecting plate is provided with a bolt hole corresponding to the fixing hole at the lower end of the inner side seat connecting plate, the lower end of the inner side seat connecting plate is also provided with a bolt hole corresponding to the fixing hole on the cushion framework body, the inner side seat connecting plate is provided with a seat angle regulator, the inner side seat connecting plate is made of high-strength steel, and the thickness of the inner side seat connecting plate is 3 mm. The upper end of the outer side seat connecting plate is provided with a bolt hole which is connected with the bolt hole of the inner side back connecting plate and the bolt hole of the outer side back connecting plate, the lower end of the outer side seat connecting plate is provided with two bolt holes which are connected with the cushion framework body through bolts, the outer side seat connecting plate is made of high-strength steel, and the thickness of the outer side seat connecting plate is 3.6 mm; the front end and the rear end of the side wall of the cushion framework are provided with mounting holes of a front supporting tube and a rear supporting tube, the cushion framework body is connected with a seat framework slide rail through a connecting plate, the hole at the upper end of the connecting plate corresponds to the front supporting tube and the rear supporting tube, the supporting tube passes through the hole, the lower end of the connecting plate is connected with the seat framework slide rail through a bolt, a seat basin and the side wall of the cushion framework are directly welded together, the seat basin is made of aluminum alloy, and the thickness of the seat basin is 0.94 mm; the material of the front support tube was an aluminum alloy, and the thickness of the front support tube was 2.4 mm. The seat cushion framework body is provided with a seat height adjuster, and a seat front and rear position adjuster is arranged on a seat framework slide rail; when the automobile seat framework is installed, the seat framework slide rail is fixed together with an automobile body through the bolt, the connecting plate is sleeved into the front supporting tube and the rear supporting tube, then the front supporting tube and the rear supporting tube are fixed to the side wall of the seat framework through the spline, the upper seat basin is welded, the seat framework body is enabled to be more stable, the seat framework body is connected with the seat framework slide rail through the fixing holes in the bolt and the connecting plate, the backrest bent pipe and the inner and outer side backrest connecting plates are welded together, and the inner and outer side connecting plates and the bolt are connected with the seat framework body.
In a targeted experiment, an unoptimized traditional automobile seat framework is made of steel, the total mass is 14.98kg, and the first-order mode is 25.03 Hz; under the condition of meeting the overall strength of the automobile seat framework and the strength of each structural part, the structural parts are designed in a light weight mode, the total mass of the optimal scheme is 11.91kg, and the first-order mode is 27.61 Hz; compared with the traditional automobile seat framework structure, the optimized scheme has the advantages that the weight is reduced by 21%, and the first-order modal lifting is 10%. Above-mentioned car seat skeleton, novel structure, skeleton core member adopt multiple material to make, and magnalium material quality is little intensity big, the effectual overall quality who reduces seat skeleton, has improved the bulk rigidity, guarantees people's safety by bus, has realized the lightweight of car seat assembly.
Claims (10)
1. A light automobile seat framework comprises a cushion framework and a backrest framework connected with the cushion framework, and is characterized in that a cushion framework body of the cushion framework is connected with the backrest framework body of the backrest framework through inner and outer side back connecting plates made of aluminum alloy, the cushion framework body comprises a seat basin, a front supporting tube and a rear supporting tube, the seat basin made of aluminum alloy is positioned at one end, away from the backrest framework, of the cushion framework body, the rear supporting tube made of aluminum alloy is positioned at the joint of the backrest framework and the cushion framework, the side wall of the cushion framework extends to the end part of the seat basin from the end part of the rear supporting tube, the front supporting tube made of aluminum alloy is fixed below the bottom basin, the backrest framework body comprises a backrest elbow and a headrest conduit supporting tube, the backrest elbow made of magnesium alloy is connected with the cushion framework body through the inner and outer side back connecting plates, the headrest conduit supporting tube made of aluminum alloy is positioned at one end, away, the headrest conduit supporting tube is fixedly connected with the backrest elbow.
2. The light-weight automobile seat frame as claimed in claim 1, wherein the back bent pipe is formed in an inverted U shape, the inner and outer back connecting plates are welded to the outer side of the vertical section of the back bent pipe, and the concave-convex reinforcing bar crosses and is fixedly connected to the vertical section of the back bent pipe.
3. The light weight automobile seat frame according to claim 1, wherein the inner and outer back connecting plates in a drop-shaped plate shape include large ends and small ends, the inner and outer back connecting plates are provided with stress holes for preventing stress concentration, the large ends of the inner and outer back connecting plates are provided with first bolt holes for connecting the cushion frame body, and the inner and outer back connecting plates have a thickness of 1.4mm to 2.6 mm.
4. The light-weight automobile seat framework as claimed in claim 1, wherein side seat connecting plates are arranged between the seat framework body and the inner and outer back connecting plates, each side seat connecting plate is in the shape of a rounded triangle, a connecting edge between two rounded corners of each rounded triangle is in an inward concave arc shape, second bolt holes are formed in three rounded corners of each side seat connecting plate, one rounded corner end of each side seat connecting plate is connected with the inner and outer back connecting plates through bolts, and the remaining two rounded corner ends of each side seat connecting plate are connected with the seat framework body through bolts.
5. The light weight automobile seat frame according to claim 4, wherein the side seat connecting plates are made of high strength steel, the side seat connecting plates include an inner seat connecting plate and an outer seat connecting plate, the inner seat connecting plate has a thickness of 1.75mm to 3.25mm, the outer seat connecting plate has a thickness of 2.1mm to 3.8mm, and the outer side of the inner seat connecting plate is provided with a mosquito-repellent incense-shaped seat angle adjuster.
6. The light weight automobile seat frame of claim 4, wherein the seat frame body is connected to the seat frame slide rails by connecting plates, the connecting plates include an elongated first flange and an elongated second flange, one end of the first flange is sleeved with the rear support tube, the other end of the first flange is connected to the seat frame slide rails, one end of the second flange is sleeved with the front support tube, and the other end of the second flange is connected to the seat frame slide rails by bolts.
7. The light weight automobile seat frame as claimed in claim 6, wherein a seat height adjuster is provided on a side of the seat cushion frame body on which the angle adjuster is provided, and a seat front-rear position adjuster is provided on the seat frame slide rail.
8. The light-weight automobile seat framework of claim 6, wherein the connecting plate is fixed with the side wall of the cushion framework through a spline, the seat pan is welded with the side wall of the cushion framework, and the thickness of the seat pan is 0.84 mm-1.56 mm.
9. The light-weight automobile seat framework as claimed in claim 2, wherein two parallel and spaced headrest guide sleeve support tubes are welded to the horizontal section of the backrest elbow, the thickness of the headrest guide sleeve support tubes is 1.4 mm-2.6 mm, and the thickness of the backrest elbow is 1.05 mm-1.95 mm.
10. The light weight automobile seat frame according to claim 1, wherein the thickness of the front support tube is 1.4mm to 2.6 mm.
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| CN201910636782.0A CN111204267A (en) | 2019-07-15 | 2019-07-15 | Lightweight car seat skeleton |
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| CN201910636782.0A CN111204267A (en) | 2019-07-15 | 2019-07-15 | Lightweight car seat skeleton |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113734008A (en) * | 2021-09-14 | 2021-12-03 | 东风越野车有限公司 | Seat back skeleton texture and seat skeleton texture |
| CN115384372A (en) * | 2021-05-25 | 2022-11-25 | 上海汽车集团股份有限公司 | Seat frame, manufacturing method of seat frame and seat assembly |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106183935A (en) * | 2016-08-05 | 2016-12-07 | 上海延锋江森座椅有限公司 | A kind of chair framework mixing material and formation process thereof |
| CN106274590A (en) * | 2016-08-31 | 2017-01-04 | 合肥云鹤江森汽车座椅有限公司 | A kind of Novel lightweight automobile chair frame |
| CN205853952U (en) * | 2016-07-28 | 2017-01-04 | 长城汽车股份有限公司 | Automobile chair frame |
| WO2017042339A1 (en) * | 2015-09-11 | 2017-03-16 | Johnson Controls Gmbh | Seat element for a vehicle seat and method for the production thereof |
| US20170341554A1 (en) * | 2016-05-25 | 2017-11-30 | Toyota Boshoku Kabushiki Kaisha | Back frame structure of vehicle seat |
| CN108099721A (en) * | 2017-12-25 | 2018-06-01 | 柳州双英股份有限公司 | A kind of almag automobile chair frame structure |
-
2019
- 2019-07-15 CN CN201910636782.0A patent/CN111204267A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017042339A1 (en) * | 2015-09-11 | 2017-03-16 | Johnson Controls Gmbh | Seat element for a vehicle seat and method for the production thereof |
| US20170341554A1 (en) * | 2016-05-25 | 2017-11-30 | Toyota Boshoku Kabushiki Kaisha | Back frame structure of vehicle seat |
| CN205853952U (en) * | 2016-07-28 | 2017-01-04 | 长城汽车股份有限公司 | Automobile chair frame |
| CN106183935A (en) * | 2016-08-05 | 2016-12-07 | 上海延锋江森座椅有限公司 | A kind of chair framework mixing material and formation process thereof |
| CN106274590A (en) * | 2016-08-31 | 2017-01-04 | 合肥云鹤江森汽车座椅有限公司 | A kind of Novel lightweight automobile chair frame |
| CN108099721A (en) * | 2017-12-25 | 2018-06-01 | 柳州双英股份有限公司 | A kind of almag automobile chair frame structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115384372A (en) * | 2021-05-25 | 2022-11-25 | 上海汽车集团股份有限公司 | Seat frame, manufacturing method of seat frame and seat assembly |
| CN113734008A (en) * | 2021-09-14 | 2021-12-03 | 东风越野车有限公司 | Seat back skeleton texture and seat skeleton texture |
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