CN210191239U - Automobile seat support structure with collision energy absorption characteristic - Google Patents
Automobile seat support structure with collision energy absorption characteristic Download PDFInfo
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- CN210191239U CN210191239U CN201920168955.6U CN201920168955U CN210191239U CN 210191239 U CN210191239 U CN 210191239U CN 201920168955 U CN201920168955 U CN 201920168955U CN 210191239 U CN210191239 U CN 210191239U
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Abstract
The utility model discloses an automobile seat support structure with collision energy-absorbing characteristic, which comprises a cushion, a height adjusting device and a mounting base, wherein the height adjusting device is provided with a height-adjusting driving assembly and two groups of connecting rod assemblies; the height-adjusting driving assembly can adjust and lock a rotation angle between a rear connecting rod and a rear support of one group of connecting rod assemblies; the method is characterized in that: and a grid type energy absorption structure is arranged on the rear support of the other group of connecting rod assemblies. The utility model discloses can absorb passenger's striking energy to car seat in the car collision of knocking into the back through grid formula energy-absorbing structure for on the energy of using on the car seat cushion by better transfer to grid formula energy-absorbing structure, ensured other parts of car seat cushion, the cushion curb plate of especially both sides can not take place great deformation in the car collision of knocking into the back, solved the potential safety hazard that car seat cushion curb plate is yielding to damage in the collision of knocking into the back, improved car seat's security performance.
Description
Technical Field
The utility model relates to a car seat supporting structure who possesses collision energy-absorbing characteristic.
Background
The passive safety of the automobile is an important performance index for measuring the automobile, and the seat is used as an important safety part of the automobile and plays an important role in protecting passengers after collision.
When the rear-end collision happens, a human body has backward impact force on the seat, the impact force forms a backward and downward moment on the seat cushion assembly through the backrest, and for the seat with the height adjusting function, the energy of the impact on the seat cushion is absorbed by the seat cushion side plate and also needs to be absorbed by the height adjusting mechanism arranged between the seat cushion and the sliding rail, so if the structural strength of the height adjusting mechanism is higher, the deformation of the seat cushion side plate is larger, and the safety of the whole seat is not good. Therefore, the bracket in the height adjusting mechanism is designed into a part with certain energy absorption effect, so that the energy absorption in the rear-end collision process of the automobile is reasonably distributed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides a car seat support structure that possesses collision energy-absorbing characteristic to solve current car seat and have the potential safety hazard because of the collision energy-absorbing characteristic of height adjusting mechanism is poor (when taking place the rear-end collision, the cushion curb plate easily produces great deformation, increases human injured risk).
Solve above-mentioned technical problem, the utility model discloses the technical scheme who adopts as follows:
a car seat support structure with collision energy-absorbing characteristics comprises a cushion, a height adjusting device and a mounting base, wherein the height adjusting device is provided with a height adjusting driving assembly and two groups of connecting rod assemblies;
two sets of link assemblies are located left side and right side respectively and install respectively the cushion curb plate on cushion left side with between the mounting base and the cushion curb plate on cushion right side with between the mounting base to form two sets of plane four-bar linkage, promptly: the connecting rod assembly comprises a front connecting rod, a front support, a rear connecting rod and a rear support, the front support and the rear support are fixedly mounted on the mounting base, the upper end and the lower end of the front connecting rod are respectively hinged with the front end of the cushion side plate and the front support, the upper end and the lower end of the rear connecting rod are respectively hinged with the rear end of the cushion side plate and the rear support, and the rear connecting rod keeps inclining according to the posture that the upper end is in front of the rear end;
the height-adjusting driving assembly can adjust and lock a rotation angle between a rear connecting rod and a rear support of one group of connecting rod assemblies;
the method is characterized in that:
another group be equipped with grid-type energy-absorbing structure on link assembly's the after-poppet, this grid-type energy-absorbing structure is located after-poppet and the articulated position of back connecting rod, this grid-type energy-absorbing structure contain connecting block and many buffering blend stop, each the both ends of buffering blend stop equally divide do not with after-poppet with connecting block fixed connection, and each buffering blend stop all is located another group on the rotation plane of link assembly's the back connecting rod, each buffering blend stop is arranged along V direction interval, the V direction has by preceding backward horizontal direction component for: when the upper end of the rear connecting rod rotates downwards, the rear connecting rod can tear the buffer barrier strips one by one in the V direction.
As a preferred embodiment of the present invention: the structural strength of each buffer barrier strip of the grid type energy absorption structure is enhanced one by one along the V direction.
As a preferred embodiment of the present invention: the rear bracket is provided with a rear bracket mounting plate, and the lower end of the rear connecting rod is hinged on the rear bracket mounting plate; the buffer barrier strips are formed by connecting straight line sections and connecting sections, the straight line sections are fixedly connected with the connecting blocks, the connecting sections are fixedly connected with the rear support mounting plate, the straight line sections are parallel to the hinge axis of the rear connecting rod and the rear support mounting plate, the straight line sections of the buffer barrier strips are all located on the rotating plane of the rear connecting rod of another group of connecting rod assemblies, and the V direction is a straight line direction pointing from the front upper side to the rear lower side; such that: when the upper end of the rear connecting rod rotates downwards, the rear connecting rod can contact the straight line segment of the buffer barrier strip so as to tear the buffer barrier strip one by one in the V direction.
Among them, preferred are: the connecting section of the buffer barrier strip is an arc section.
As a preferred embodiment of the present invention: the structural strength of each buffer barrier strip of the grid type energy absorption structure is enhanced one by one along the V direction in the following mode:
arbitrary adjacent two clearance width between the buffering blend stop all sets up to fixed value B, each the buffering blend stop is in thickness in the V direction is pressed the V direction increases one by one, and, with each the buffering blend stop is pressed the V direction is numbered one by one, fixed value B and nth the buffering blend stop is in thickness a in the V directionnCalculated according to the following equations 1-1 to 1-4:
equation 1-1: a isn＝a1+γ(n-1)，n≥1；
Equations 1-2: a is1＝σb/l；
Equations 1-4: b ═ σb/m；
In the formula, σbThe tensile strength of the material of the buffer bar is Mpa, wherein l is 300Mpa, w is 3000Mpa, and m is 400 Mpa.
As a preferred embodiment of the present invention: the structural strength of each buffer barrier strip of the grid type energy absorption structure is enhanced one by one along the V direction in the following mode:
each buffering blend stop is in thickness in the V side all sets up to fixed value A, adjacent two clearance width between the buffering blend stop is pressed the V direction is decremented, and, will each the buffering blend stop is pressed the V direction is numbered one by one, fixed value A and nth buffering blend stop and n +1 clearance width b between the buffering blend stopnCalculated according to the following equations 2-1 to 2-4:
equation 2-1: a ═ σb/l；
Equation 2-2: bn＝b1σ (n-1), n ≧ 1, and when b is calculatedn<When 0, let bn＝0；
Equations 2-3: b1＝σb/m；
Equations 2-4: sigma-sigmab/x；
In the formula, σbThe tensile strength of the material of the buffer bar is Mpa, wherein l is 300Mpa, m is 400Mpa, and x is 2000 Mpa.
As a preferred embodiment of the present invention: the structural strength of each buffer barrier strip of the grid type energy absorption structure is enhanced one by one along the V direction in the following mode:
the thickness of each buffer barrier in the V direction is gradually increased according to the V direction, the gap width between two adjacent buffer barriers is gradually decreased according to the V direction, each buffer barrier is numbered according to the V direction one by one, and the thickness a of the nth buffer barrier in the V directionnAnd the gap width b between the n-th buffer stop strip and the n + 1-th buffer stop stripnCalculated according to the following equations 3-1 to 3-6:
equation 3-1: a isn＝a1+τ(n-1)，n≥1；
Equation 3-2: a is1＝σb/l；
Equation 3-3: τ ═ σb/y；
Equations 3-4: bn＝b1-υ(n-1), n is not less than 1, and when b is calculatedn<When 0, let bn＝0；
Equations 3-5: b1＝σb/m；
Equations 3-6: θb/z；
In the formula, σbThe tensile strength of the material of the buffer strip is Mpa, and the unit is Mpa, i is 300Mpa, y is 3500Mpa, m is 400Mpa, and z is 2500 Mpa.
As a preferred embodiment of the present invention: and an included angle between the V direction and a mounting plane of the rear support on the mounting base is 10-80 degrees.
As a preferred embodiment of the present invention: when the cushion is at the lower limit height position, the rear connecting rod is in contact with a first buffer barrier strip of the grid type energy absorption structure in the V direction.
As a preferred embodiment of the present invention: the mounting base is equipped with left side slide rail mechanism and right side slide rail mechanism, left side slide rail mechanism and right side slide rail mechanism all follow the fore-and-aft direction of cushion extends, is located the left the equal fixed mounting of link assembly's fore-stock and after-poppet is in on the slide rail mechanism of left side, be located the right side the equal fixed mounting of link assembly's fore-stock and after-poppet is in on the slide rail mechanism of right side.
Compared with the prior art, the utility model discloses following beneficial effect has:
first, the utility model discloses a set up grid formula energy-absorbing structure on another group link assembly's after-poppet, can absorb passenger to car seat's striking energy in the car rear-end collision through grid formula energy-absorbing structure, make the energy of using on the car seat cushion by better transfer to grid formula energy-absorbing structure, other parts of car seat cushion have been ensured, the cushion curb plate of especially both sides can not take place great deformation in the car rear-end collision, the yielding relevant potential safety hazard that damages and bring of cushion curb plate in the rear-end collision of car seat has been solved, the security performance of car seat has been improved.
Second, the utility model discloses simple structure need not to increase car seat's part total number, and application scope is wide.
Thirdly, the utility model sets the structural strength of each buffer bar of the grid type energy absorption structure to be strengthened one by one along the V direction, when the automobile is collided with the rear end, the first buffer bar can be rapidly subjected to plastic deformation under the impact force of the rear connecting rod, and the rear connecting rod is guided to continue to rotate along the anticlockwise direction of figure 1, so as to be contacted with other buffer bars one by one along the V direction; and because the buffer barrier strip positioned at the tail end of the V direction has higher structural strength, the grid type energy absorption structure can be ensured not to fall off in the rear-end collision process, the rotation angle of the rear connecting rod is limited, and the safety of passengers is ensured.
Fourth, the utility model discloses a realize the structural strength of each buffering blend stop of grid-type energy-absorbing structure and follow three kinds of modes that V direction strip-by-strip reinforcing adopted can guarantee that back connecting rod extrusion each buffering blend stop leads to it to take place plastic deformation to tearing the back, begins to take place the contact with next buffering blend stop promptly to the absorbed energy of contact, consequently, have the efficient advantage of energy-absorbing, can reduce the impact that the passenger received in the collision of knocking into the back.
To sum up, the utility model discloses can the energy absorption of the seat spare part of rational distribution car rear-end collision in-process, through the seat support that possesses collision energy-absorbing structure, will reduce the absorption of other spare parts (especially cushion curb plate) to the collision energy to the design requirement of other spare parts (especially cushion curb plate) has been reduced, finally increases the development efficiency of seat.
Drawings
The invention will be described in further detail with reference to the following drawings and specific embodiments:
FIG. 1 is a schematic structural view of a seat support structure of an automobile according to the present invention;
fig. 2 is a schematic structural view of a middle and rear connecting rod, a rear bracket and a grid-type energy absorbing structure of the present invention;
fig. 3 is a schematic structural diagram of a grid-type energy absorbing structure according to a fourth embodiment of the present invention;
fig. 4 is a schematic structural diagram of a grid-type energy absorbing structure according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a grid-type energy absorbing structure according to an embodiment of the present invention.
Detailed Description
The invention will be further described with reference to the following examples:
example one
As shown in fig. 1 to 5, the utility model discloses an automobile seat support structure with collision energy-absorbing characteristics, which comprises a seat cushion 1, a height adjusting device and a mounting base 2, wherein the height adjusting device is provided with a height-adjusting driving assembly and two groups of connecting rod assemblies;
the two groups of connecting rod assemblies are respectively positioned on the left side and the right side and are respectively arranged between the cushion side plate 1-1 on the left side of the cushion 1 and the mounting base 2 and between the cushion side plate 1-1 on the right side of the cushion 1 and the mounting base 2 to form two sets of plane four-bar mechanisms, namely: the connecting rod assembly comprises a front connecting rod 3, a front support 4, a rear connecting rod 5 and a rear support 6, the front support 4 and the rear support 6 are fixedly mounted on the mounting base 2, the upper end and the lower end of the front connecting rod 3 are respectively hinged with the front end of the cushion side plate 1-1 and the front support 4, the upper end and the lower end of the rear connecting rod 5 are respectively hinged with the rear end of the cushion side plate 1-1 and the rear support 6, and the rear connecting rod 5 keeps inclining according to the posture that the upper end is at the rear end and the lower end is at the front;
the height-adjusting driving assembly can adjust and lock the rotation angle between the rear connecting rod 5 and the rear support 6 of one group of connecting rod assemblies, so that the rotation angle between the front connecting rod 3 and the front support 4 of the two groups of connecting rod assemblies and the rotation angle between the rear connecting rod 5 and the rear support 6 of the other group of connecting rod assemblies are correspondingly driven by the seat cushion 1, and therefore the height adjustment of the seat cushion 1 relative to the mounting base 2 is realized;
a grid-type energy absorption structure 7 is arranged on the rear support 6 of the other group of connecting rod assemblies, the grid-type energy absorption structure 7 is located behind a hinge position 6a of the rear support 6 and the rear connecting rod 5, the grid-type energy absorption structure 7 comprises a connecting block 7-1 and a plurality of buffer barrier strips 7-2, two ends of each buffer barrier strip 7-2 are fixedly connected with the rear support 6 and the connecting block 7-1 respectively, each buffer barrier strip 7-2 is located on a rotating plane of the rear connecting rod 5 of the other group of connecting rod assemblies, the buffer barrier strips 7-2 are arranged at intervals along a V direction, the V direction has a horizontal direction component from front to back, and the V direction can be a linear direction or a curved direction, so that: when the rear connecting rod 5 rotates in the direction that the upper end of the rear connecting rod 5 faces downwards, the rear connecting rod 5 can tear the buffer barrier strips 7-2 one by one in the V direction.
The utility model discloses a car seat supporting structure's theory of operation as follows:
referring to fig. 1, when a rear-end collision occurs to an automobile, an impact force F is generated by an occupant on a backrest 8 of an automobile seat and is transmitted to the rear connecting rods 5 of the two groups of connecting rod assemblies through a cushion side plate 1-1, wherein the rear connecting rods 5 of one group of connecting rod assemblies cannot rotate due to the angle locking action of the height-adjusting driving assembly, and the rear connecting rods 5 of the other group of connecting rod assemblies rotate around the hinge axes of the rear connecting rods and a rear bracket mounting plate 6-1 in the counterclockwise direction of fig. 1; therefore, in the rotation process of the rear connecting rod 5, the rear connecting rod 5 presses the buffer barrier strips 7-2 of the grid type energy-absorbing structure 7 one by one to be plastically deformed to be torn according to the V direction, so that the grid type energy-absorbing structure 7 plays an energy-absorbing role in the process, therefore, the utility model discloses can absorb the impact energy of passengers to the automobile seat in the automobile rear-end collision through the grid type energy-absorbing structure 7, so that the energy applied to the cushion of the automobile seat is better transferred to the grid type energy-absorbing structure 7, other parts of the cushion of the automobile seat, especially the cushion side plates 1-1 on both sides, can not deform greatly in the automobile rear-end collision, thereby solving the related potential safety hazard caused by the easy deformation and damage of the cushion side plates in the rear-end collision of the automobile seat and improving the safety performance of the automobile seat.
And, the utility model discloses simple structure need not to increase car seat's part total number, and application scope is wide.
Example two
On the basis of the first embodiment, the second embodiment further adopts the following preferred structure:
the structural strength of each buffer barrier strip 7-2 of the grid type energy absorption structure 7 is enhanced one by one along the V direction.
Therefore, when the automobile is in rear-end collision, through the design that the structural strength of each buffer barrier strip 7-2 is strengthened one by one along the V direction, the first buffer barrier strip 7-2 can be rapidly subjected to plastic deformation under the impact force of the rear connecting rod 5, and the rear connecting rod 5 is guided to continuously rotate along the anticlockwise direction of figure 1 so as to be contacted with other buffer barrier strips 7-2 one by one along the V direction; in addition, as the buffer barrier strips 7-2 at the tail end of the V direction have higher structural strength, the grid type energy absorption structures 7 can be ensured not to fall off in the rear-end collision process, the rotation angle of the rear connecting rod 5 is limited, and the safety of passengers is ensured.
EXAMPLE III
On the basis of the second embodiment, the third embodiment further adopts the following preferred structure:
the rear bracket 6 is provided with a rear bracket mounting plate 6-1, and the lower end of the rear connecting rod 5 is hinged on the rear bracket mounting plate 6-1; the buffer barrier strips 7-2 are formed by connecting straight line segments and connecting segments, the straight line segments are fixedly connected with the connecting blocks 7-1, the connecting segments are fixedly connected with the rear support mounting plate 6-1, the straight line segments are parallel to the hinge axis of the rear connecting rod 5 and the rear support mounting plate 6-1, the straight line segments of the buffer barrier strips 7-2 are located on the rotating plane of the rear connecting rod 5 of the other group of connecting rod assemblies, and the V direction is a straight line direction from the front upper side to the rear lower side; such that: when the rear connecting rod 5 rotates in the direction in which the upper end thereof faces downward, the rear connecting rod 5 can contact the straight line segment of the buffer barrier 7-2 to tear the buffer barrier 7-2 one by one in the V direction.
Among them, preferred are: the connecting section of the buffer barrier strip 7-2 is an arc section.
Example four
On the basis of the third embodiment, the fourth embodiment further adopts the following preferred structure:
the structural strength of each buffer barrier strip 7-2 of the grid type energy absorption structure 7 is enhanced one by one along the V direction in the following way:
as shown in fig. 3, the gap width between any two adjacent buffer bars 7-2 is set to be a fixed value B, the thickness of each buffer bar 7-2 in the V direction increases one by one in the V direction, and each buffer bar 7-2 is numbered one by one in the V direction, where the fixed value B and the thickness a of the nth buffer bar 7-2 in the V directionnCalculated according to the following equations 1-1 to 1-4:
equation 1-1: a isn＝a1+γ(n-1)，n≥1；
Equations 1-2: a is1＝σb/l；
Equations 1-4: b ═ σb/m；
In the formula, σbThe tensile strength of the material of the buffer bar 7-2 is Mpa, where l is 300Mpa, w is 3000Mpa, and m is 400 Mpa.
For example: in FIG. 3, the thickness of the buffering barrier 7-2 at item 1 is a1The thickness of the 2 nd buffer stop strip 7-2 is a2The thickness of the buffer stop strip 7-2 in item 3 is a3The thickness of the n-1 th buffer stop strip 7-2 is an-1The thickness of the n-th buffer stop strip 7-2 is an。
EXAMPLE five
On the basis of the third embodiment, the fifth embodiment further adopts the following preferred structure:
the structural strength of each buffer barrier strip 7-2 of the grid type energy absorption structure 7 is enhanced one by one along the V direction in the following way:
as shown in fig. 4, the thickness of each buffer bar 7-2 in the V direction is set to be a fixed value a, the width of the gap between two adjacent buffer bars 7-2 decreases gradually in the V direction, and the buffer bars 7-2 are numbered one by one in the V direction, where the fixed value a is a fixed valueAnd the gap width b between the n-th buffer barrier strip 7-2 and the n + 1-th buffer barrier strip 7-2nCalculated according to the following equations 2-1 to 2-4:
equation 2-1: a ═ σb/l；
Equation 2-2: bn＝b1σ (n-1), n ≧ 1, and when b is calculatedn<When 0, let bn＝0；
Equations 2-3: b1＝σb/m；
Equations 2-4: sigma-sigmab/x；
In the formula, σbThe tensile strength of the material of the buffer bar 7-2 is Mpa, where l is 300Mpa, m is 400Mpa, and x is 2000 Mpa.
For example: in fig. 4, the width of the gap between the 1 st buffer stop strip 7-2 and the 2 nd buffer stop strip 7-2 is b1The width of the gap between the 2 nd buffer barrier strip 7-2 and the 3 rd buffer barrier strip 7-2 is b2The width of the gap between the n-th buffer barrier 7-2 and the n + 1-th buffer barrier 7-2 is bn。
EXAMPLE six
On the basis of the third embodiment, the sixth embodiment further adopts the following preferred structure:
the structural strength of each buffer barrier strip 7-2 of the grid type energy absorption structure 7 is enhanced one by one along the V direction in the following way:
as shown in fig. 5, the thickness of each buffer bar 7-2 in the V direction increases gradually in the V direction, the gap width between two adjacent buffer bars 7-2 decreases gradually in the V direction, and each buffer bar 7-2 is numbered gradually in the V direction, and the thickness a of the nth buffer bar 7-2 in the V directionnAnd the gap width b between the n-th buffer barrier 7-2 and the n + 1-th buffer barrier 7-2nCalculated according to the following equations 3-1 to 3-6:
equation 3-1: a isn＝a1+τ(n-1)，n≥1；
Equation 3-2: a is1＝σb/l；
Equation 3-3: τ ═ σb/y；
Equations 3-4: bn＝b1V (n-1), n ≧ 1, and when b is calculatedn<When 0, let bn＝0；
Equations 3-5: b1＝σb/m；
Equations 3-6: θb/z；
In the formula, σbThe tensile strength of the material of the buffer strip 7-2 is Mpa, where l is 300Mpa, y is 3500Mpa, m is 400Mpa, and z is 2500 Mpa.
For example: in FIG. 5, the thickness of the buffering barrier 7-2 of item 1 is a1The thickness of the 2 nd buffer stop strip 7-2 is a2The thickness of the buffer stop strip 7-2 in item 3 is a3The thickness of the n-1 th buffer stop strip 7-2 is an-1The thickness of the n-th buffer stop strip 7-2 is an. The width of the gap between the 1 st buffer barrier strip 7-2 and the 2 nd buffer barrier strip 7-2 is b1The width of the gap between the 2 nd buffer barrier strip 7-2 and the 3 rd buffer barrier strip 7-2 is b2The width of the gap between the n-th buffer barrier 7-2 and the n + 1-th buffer barrier 7-2 is bn。
EXAMPLE seven
On the basis of any one of the fourth to sixth embodiments, the seventh embodiment further adopts the following preferred structure:
the angle between the V direction and the mounting plane of the rear bracket 6 on the mounting base 2 is between 10 degrees and 80 degrees.
Example eight
On the basis of any one of the first to seventh embodiments, the eighth embodiment further adopts the following preferred structure:
when the seat cushion 1 is at the lower limit height position, the rear connecting rod 5 is in contact with the first buffer barrier strip 7-2 of the grid type energy absorption structure 7 in the V direction, so that the energy of the seat in rear-end collision can be better transmitted and absorbed.
Example nine
On the basis of any one of the first to eighth embodiments, the ninth embodiment further adopts the following preferred structure:
mounting base 2 is equipped with left side slide rail mechanism and right side slide rail mechanism, left side slide rail mechanism and right side slide rail mechanism all follow the fore-and-aft direction of cushion 1 extends, is located the left equal fixed mounting of front carriage 4 and rear carriage 6 of link assembly is in on the slide rail mechanism of left side, be located the right side the equal fixed mounting of front carriage 4 and rear carriage 6 of link assembly is in on the slide rail mechanism of right side.
The present invention is not limited to the above-mentioned embodiments, and according to the above-mentioned contents, according to the common technical knowledge and conventional means in the field, without departing from the basic technical idea of the present invention, the present invention can also make other equivalent modifications, replacements or changes in various forms, all falling within the protection scope of the present invention.
Claims (10)
1. A car seat support structure with collision energy absorption characteristics comprises a cushion (1), a height adjusting device and a mounting base (2), wherein the height adjusting device is provided with a height adjusting driving assembly and two groups of connecting rod assemblies;
the two groups of connecting rod assemblies are respectively positioned on the left side and the right side and are respectively installed between a cushion side plate (1-1) on the left side of the cushion (1) and the installation base (2) and between the cushion side plate (1-1) on the right side of the cushion (1) and the installation base (2) to form two sets of plane four-bar mechanisms, namely: the connecting rod assembly comprises a front connecting rod (3), a front support (4), a rear connecting rod (5) and a rear support (6), the front support (4) and the rear support (6) are fixedly mounted on the mounting base (2), the upper end and the lower end of the front connecting rod (3) are respectively hinged with the front end of the cushion side plate (1-1) and the front support (4), the upper end and the lower end of the rear connecting rod (5) are respectively hinged with the rear end of the cushion side plate (1-1) and the rear support (6), and the rear connecting rod (5) keeps inclining according to the posture that the upper end is at the front of the rear end;
the height-adjusting driving assembly can adjust and lock a rotation angle between a rear connecting rod (5) and a rear support (6) of one group of connecting rod assemblies;
the method is characterized in that:
the other group of connecting rod assemblies is provided with a grid type energy absorption structure (7) on a rear support (6), the grid type energy absorption structure (7) is located behind a hinged position (6a) of the rear support (6) and a rear connecting rod (5), the grid type energy absorption structure (7) comprises a connecting block (7-1) and a plurality of buffer bars (7-2), two ends of each buffer bar (7-2) are respectively fixedly connected with the rear support (6) and the connecting block (7-1), each buffer bar (7-2) is located on a rotating plane of the rear connecting rod (5) of the other group of connecting rod assemblies, the buffer bars (7-2) are arranged at intervals in the V direction, and the V direction has a horizontal direction component from front to back, so that: when the rear connecting rod (5) rotates in the direction that the upper end of the rear connecting rod faces downwards, the rear connecting rod (5) can tear the buffer stop strips (7-2) one by one in the V direction.
2. The automobile seat support structure with collision energy absorption characteristics according to claim 1, wherein: the structural strength of each buffer barrier strip (7-2) of the grid type energy absorption structure (7) is enhanced one by one along the V direction.
3. The automobile seat support structure with collision energy absorption characteristics according to claim 2, wherein: the rear support (6) is provided with a rear support mounting plate (6-1), and the lower end of the rear connecting rod (5) is hinged to the rear support mounting plate (6-1); the buffer barrier strips (7-2) are formed by connecting straight line sections and connecting sections, the straight line sections are fixedly connected with the connecting blocks (7-1), the connecting sections are fixedly connected with the rear support mounting plate (6-1), the straight line sections are parallel to the hinge axes of the rear connecting rods (5) and the rear support mounting plate (6-1), the straight line sections of the buffer barrier strips (7-2) are located on the rotating plane of the rear connecting rods (5) of the other group of connecting rod assemblies, and the V direction is a straight line direction from the front upper side to the rear lower side; such that: when the rear connecting rod (5) rotates in the direction that the upper end of the rear connecting rod faces downwards, the rear connecting rod (5) can contact the straight line segment of the buffer barrier strip (7-2) so as to tear the buffer barrier strip (7-2) one by one in the V direction.
4. The automobile seat support structure with collision energy absorption characteristics according to claim 3, wherein: the connecting section of the buffer barrier strip (7-2) is an arc section.
5. The automobile seat support structure with collision energy absorption characteristics according to claim 3, wherein: the structural strength of each buffer barrier strip (7-2) of the grid type energy absorption structure (7) is enhanced along the V direction one by one in the following mode:
the width of a gap between any two adjacent buffer barrier strips (7-2) is set to be a fixed value B, each buffer barrier strip (7-2) is arranged on the V direction, the thickness of the buffer barrier strip (7-2) in the V direction is increased one by one in the V direction, each buffer barrier strip (7-2) is arranged on the V direction, the number of the buffer barrier strip (7-2) in the V direction is numbered one by one in the V direction, and the fixed value B and the nth buffer barrier strip (7-2) in the thickness a in the V directionnCalculated according to the following equations 1-1 to 1-4:
equation 1-1: a isn＝a1+γ(n-1)，n≥1；
Equations 1-2: a is1＝σb/l；
Formulas 1 to 3: γ ═ σb/w；
Equations 1-4: b ═ σb/m；
In the formula, σbThe tensile strength of the material of the buffer bar (7-2) is Mpa, wherein l is 300Mpa, w is 3000Mpa, and m is 400 Mpa.
6. The automobile seat support structure with collision energy absorption characteristics according to claim 3, wherein: the structural strength of each buffer barrier strip (7-2) of the grid type energy absorption structure (7) is enhanced along the V direction one by one in the following mode:
the thickness of each buffer barrier strip (7-2) in the V direction is set to be a fixed value A, the width of a gap between every two adjacent buffer barrier strips (7-2) is decreased progressively in the V direction, and each buffer barrier strip (7-2)) Numbering one by one according to the V direction, wherein the fixed value A and the nth buffer barrier (7-2) and the (n + 1) th buffer barrier (7-2) form a gap width bnCalculated according to the following equations 2-1 to 2-4:
equation 2-1: a ═ σb/l；
Equation 2-2: bn＝b1σ (n-1), n ≧ 1, and when b is calculatedn<When 0, let bn＝0；
Equations 2-3: b1＝σb/m；
Equations 2-4: sigma-sigmab/x；
In the formula, σbThe tensile strength of the material of the buffer bar (7-2) is Mpa, wherein the unit is 300Mpa, m is 400Mpa, and x is 2000 Mpa.
7. The automobile seat support structure with collision energy absorption characteristics according to claim 3, wherein: the structural strength of each buffer barrier strip (7-2) of the grid type energy absorption structure (7) is enhanced along the V direction one by one in the following mode:
the thickness of each buffer barrier strip (7-2) in the V direction is gradually increased along the V direction, the width of a gap between every two adjacent buffer barrier strips (7-2) is gradually decreased along the V direction, the buffer barrier strips (7-2) are numbered one by one along the V direction, and the thickness a of the nth buffer barrier strip (7-2) in the V directionnAnd the gap width b between the n-th buffer barrier strip (7-2) and the n + 1-th buffer barrier strip (7-2)nCalculated according to the following equations 3-1 to 3-6:
equation 3-1: a isn＝a1+τ(n-1)，n≥1；
Equation 3-2: a is1＝σb/l；
Equation 3-3: τ ═ σb/y；
Equations 3-4: bn＝b1V (n-1), n ≧ 1, and when b is calculatedn<When 0, let bn＝0；
Equations 3-5: b1＝σb/m；
Equations 3-6:υ＝σb/z；
in the formula, σbThe tensile strength of the material of the buffer bar (7-2) is Mpa, wherein l is 300Mpa, y is 3500Mpa, m is 400Mpa, and z is 2500 Mpa.
8. The automobile seat support structure having collision energy absorbing characteristics according to any one of claims 5 to 7, wherein: the included angle between the V direction and the mounting plane of the rear bracket (6) on the mounting base (2) is 10-80 degrees.
9. The automobile seat support structure having collision energy absorbing characteristics according to any one of claims 1 to 7, wherein: when the seat cushion (1) is at the lower limit height position, the rear connecting rod (5) is in contact with a first buffer barrier strip (7-2) of the grid type energy absorption structure (7) in the V direction.
10. The automobile seat support structure having collision energy absorbing characteristics according to any one of claims 1 to 7, wherein: mounting base (2) are equipped with left side slide rail mechanism and right side slide rail mechanism, left side slide rail mechanism and right side slide rail mechanism all follow the fore-and-aft direction of cushion (1) extends, is located the left link assembly's equal fixed mounting in fore-stock (4) and after-poppet (6) is in on the slide rail mechanism of left side, be located the right side link assembly's equal fixed mounting in fore-stock (4) and after-poppet (6) is in on the slide rail mechanism of right side.
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| WO2021218508A1 (en) * | 2020-04-30 | 2021-11-04 | 诺博汽车系统有限公司 | Skeleton structure of vehicle seat |
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| WO2021218508A1 (en) * | 2020-04-30 | 2021-11-04 | 诺博汽车系统有限公司 | Skeleton structure of vehicle seat |
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