CN113635977B - Connecting mechanism and instrument board beam assembly - Google Patents
Connecting mechanism and instrument board beam assembly Download PDFInfo
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- CN113635977B CN113635977B CN202111003851.8A CN202111003851A CN113635977B CN 113635977 B CN113635977 B CN 113635977B CN 202111003851 A CN202111003851 A CN 202111003851A CN 113635977 B CN113635977 B CN 113635977B
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- crumple
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- side plate
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- crush
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/14—Dashboards as superstructure sub-units
- B62D25/145—Dashboards as superstructure sub-units having a crossbeam incorporated therein
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- Combustion & Propulsion (AREA)
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Abstract
The application discloses a connecting mechanism and an instrument board beam assembly, wherein the connecting mechanism comprises a crumple support capable of crumpling and absorbing energy, and the crumple support comprises a first crumple part, a second crumple part and a third crumple part which are sequentially connected; one end of the first crumple part, which is far away from the third crumple part, is provided with a nut support plate with a gap adjusting nut; and the third crumple part is provided with a crumple part flanging used for being connected with the instrument panel cross beam. The utility model discloses a coupling mechanism and instrument board beam assembly, when the collision takes place, one of the first portion of crumpling of the support that crumples, second portion of crumpling, third portion of crumpling or several portions of crumpling can take place to crumple to for the front engine room crumple provides buffer space, spare part extrusion invasion passenger cabin causes the driver to hurt in the front engine room when effectively preventing the collision, has improved the security performance.
Description
Technical Field
The application relates to the technical field of CCB connecting supports, in particular to a connecting mechanism and an instrument board beam assembly.
Background
Along with the more and more high attention degree of consumer to passenger car security, collision safety gradually becomes one of the important factor that people considered when buying the car, and the connection structure form of enclosing the panel beating before many motorcycle types CCB and the automobile body is single relatively at present, and intensity and rigidity are too big, can't produce effective ulcerate when high-speed collision takes place and contract, has the risk of invading the cockpit and injuring passenger, and the security performance still remains to be promoted.
In view of this, a connection mechanism and an instrument panel cross member assembly that can collapse during a collision and that have high safety performance are provided.
Disclosure of Invention
The application aims to provide a connecting mechanism and an instrument board beam assembly which can collapse when in collision and have high safety performance.
The technical scheme of the application provides a connecting mechanism for connecting an instrument panel beam and a front wall metal plate, the connecting mechanism comprises a crumple support capable of crumpling and absorbing energy, and the crumple support comprises a first crumple part, a second crumple part and a third crumple part which are sequentially connected;
one end of the first crumple part, which is far away from the third crumple part, is provided with a nut support plate with a gap adjusting nut;
and the third crumple part is provided with a crumple part flanging used for being connected with the instrument board beam.
In an alternative embodiment, the third crush portion is connected to the second crush portion by a breakable connection.
In one alternative, the crush can has a weakened groove therein.
In an optional technical scheme, the first crumple section is formed by butting two first crumple frames with a first side plate and a first top plate, the second crumple section is formed by butting two second crumple frames with a second side plate and a second top plate, and the third crumple section is formed by butting two third crumple frames with a third side plate and a third top plate;
the first side plate, the second side plate and the third side plate are sequentially connected;
the nut supporting plate is connected with the first side plate and/or the first top plate, and the crumple part flanging is arranged on the third side plate and/or the third top plate.
In an alternative embodiment, the second side plate includes a second side plate main plate and a second side plate extension plate connected to one end of the second side plate main plate and extending obliquely toward one side of the second side plate main plate;
the first side plate is arranged on one side of the second side plate main plate, the first side plate is connected with the second side plate extension plate, and the third side plate is connected with the second side plate main plate.
In one optional technical scheme, the second side plate is provided with a weakening through hole;
the opening of the weakened through hole becomes gradually smaller from the middle to both ends in the extending direction along the second side plate.
In an alternative embodiment, the second side plate includes a second side plate main plate and a second side plate extension plate connected to the second side plate main plate and extending obliquely toward one side of the second side plate main plate;
a portion of the weakened through-hole is provided in the second side panel main panel, and another portion of the weakened through-hole is provided in the second side panel extension panel.
In one optional technical scheme, a support plate flanging is arranged on the nut support plate and connected with the first crumple part.
The technical scheme of the application also provides an instrument board beam assembly which comprises an instrument board beam, a mounting frame for mounting a surface plate of a positioning instrument, a support frame for supporting a steering mechanism and a connecting mechanism in any one technical scheme;
the mounting frame and the support frame are respectively connected with the instrument board cross beam;
the third crumple part is connected with the instrument panel cross beam, and the mounting frame and the third crumple part are positioned on two opposite sides of the instrument panel cross beam;
the side part of the second crumple part extends towards the support frame side to form a crumple part connecting plate, and the crumple part connecting plate is connected with the support frame.
In an alternative embodiment, the supporting frame extends obliquely in a vertical direction, a first end of the supporting frame is higher than a second end of the supporting frame, and the crumple connecting plate is connected to the second end of the supporting frame.
By adopting the technical scheme, the method has the following beneficial effects:
the application provides a coupling mechanism and instrument board beam assembly, when the collision takes place, the support that contracts bursts one of first portion of contracting, the second portion of contracting, the third portion of contracting or several the portion of contracting of ulcerate can take place to burst and contract to for the front engine room is creased and is provided the buffer space, spare part extrusion invasion passenger cabin in the front engine room causes the driver to hurt when effectively preventing the collision, has improved the security performance.
Drawings
FIG. 1 is a top view of a coupling mechanism according to one embodiment of the present application;
FIG. 2 is an exploded view of a coupling mechanism provided in accordance with an embodiment of the present application;
FIG. 3 is a schematic view of a third side panel connected to a second side panel by a breakable connection;
FIG. 4 is a perspective view of an instrument panel cross member assembly provided in accordance with an embodiment of the present application;
FIG. 5 is a bottom view of the instrument panel cross member assembly shown in FIG. 4;
FIG. 6 is a schematic view showing the crush cans collapsing and rotating the support bracket about the cross-car beam in the event of a collision.
Detailed Description
Embodiments of the present application are further described below with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1-2, a connection mechanism for connecting an instrument panel cross beam 200 and a front wall metal plate according to an embodiment of the present application includes a crush bracket 100 capable of collapsing and absorbing energy, where the crush bracket 100 includes a first crush portion 1, a second crush portion 2, and a third crush portion 3 connected in sequence.
A nut support plate 4 with a gap adjusting nut 5 is mounted at one end of the first crush portion 1 away from the third crush portion 3.
The third crush portion 3 has a crush portion flange 313 for connection to the instrument panel cross member 200.
The connecting mechanism that this application embodiment provided is used for connecting between instrument board crossbeam 200 and the preceding panel beating. The connecting mechanism comprises the crumple support 100 capable of crumpling and absorbing energy, when collision happens, the crumple support 100 can crumple to provide a buffer space for the crumple of the front engine room, parts in the front engine room are effectively prevented from being extruded to invade the passenger room to cause driver injury when collision happens, and safety performance is improved.
The crush can 100 includes a first crush portion 1, a second crush portion 2, and a third crush portion 3 connected in sequence. The third crush portion 3 has a crush portion bead 313 thereon, and the crush portion bead 313 is used for welding connection with the instrument panel cross member 200. The front end of the first crumple section 1 is provided with a nut support plate 4, and a gap adjustment nut 5 is mounted on the nut support plate 4. The nut support plate 4 is provided with a clamping hole 42, the clearance adjusting nut 5 is provided with a clamping jaw 51, and the clamping jaw 51 is clamped in the clamping hole 42. The back of the nut support plate 4 has a weld nut. During installation, the connecting bolt of the front wall metal plate penetrates through the gap adjusting nut 5 and the central hole 41 of the nut support plate 4 to be matched and fastened with the welding nut. The connecting bolt can be rotated in the gap adjustment nut 5 to adjust the interval between the dash cross-member 200 and the dash panel.
The first crumple part 1, the second crumple part 2 and the third crumple part 3 are energy-absorbing boxes respectively. The second crush portion 2 is the main crush energy absorbing portion of the crush can 100.
When collision happens, the first crumple part 1 is firstly stressed and crumpled, then the second crumple part 2 is stressed and crumpled, and finally the third crumple part 3 is stressed and crumpled. When the collision is not severe, it is possible that only the first crush portion 1 is crushed by force, and the second crush portion 2 and the third crush portion 3 are not crushed. When the collision is severe, it is likely that the first and second crush portions 1 and 2 are crushed by force, and the third crush portion 3 is not crushed.
Therefore, when a collision occurs, one or more of the first crumple part 1, the second crumple part 2 and the third crumple part 3 of the crumple support 100 can be crumpled when the connection mechanism is used, so that a buffer space is provided for the crumple of the front engine room, the damage to a driver caused by the fact that parts in the front engine room are extruded to invade into the passenger room when the collision occurs is effectively prevented, and the safety performance is improved.
In one embodiment, as shown in FIG. 3, the third crush portion 3 is connected to the second crush portion 2 by a breakable connection 8.
The breakable connection 8 is a connection that breaks when subjected to a certain shear force. The breakable connecting piece 8 may be selected from an aluminum connecting piece (aluminum rivet), a magnesium alloy connecting piece (magnesium alloy rivet), an iron connecting piece (iron rivet), a fiber reinforced plastic connecting piece (fiber reinforced plastic rivet), and the like. The fiber reinforced plastic can be glass fiber reinforced plastic.
The anti-bending strength of the breakable connecting piece 8 can be set according to the requirements of specific vehicle types, and the anti-bending strength of the breakable connecting piece 8 can be changed by changing the thickness of the breakable connecting piece.
The connection strength of aluminum connectors, magnesium alloy connectors, iron connectors, fiber reinforced plastic connectors, and the like is less than the welding strength. The shear strength of aluminum connectors, magnesium alloy connectors, iron connectors, fiber reinforced plastic connectors and the like is much lower than that of steel. In the event of a strong collision, the breakable connection 8 is subjected to shear forces caused by the impact force. When the shearing force exceeds the shearing strength of the breakable connection 8, the breakable connection 8 is broken at the interface between the third collapsed portion 3 (third side plate 311) and the second collapsed portion 2 (second side plate 211) at a high rate, so that the third collapsed portion 3 and the second collapsed portion 2 are dislocated and collapsed, thereby reducing the impact on the instrument panel cross beam 200 to the maximum extent and reducing the injury to the passengers.
In one embodiment, as shown in fig. 1, the crush can 100 has a weakening groove 6, which can locally weaken and guide the crush without affecting the overall structural strength.
The weakening groove 6 is a depression provided on the crush can 100, and is formed on the crush can 100 by means of punching. As required, a weakening groove 6 may be disposed at each of the first, second, and third crush portions 1, 2, and 3.
In one embodiment, as shown in fig. 1-2, the first crush can 1 is formed by two first crush cans 11 with a first side plate 111 and a first top plate 112 in a butt joint manner, the second crush can 2 is formed by two second crush cans 21 with a second side plate 211 and a second top plate 212 in a butt joint manner, and the third crush can 3 is formed by two third crush cans 31 with a third side plate 311 and a third top plate 312 in a butt joint manner.
The first side plate 111, the second side plate 211 and the third side plate 311 are connected in sequence.
The nut support plate 4 is connected with the first side plate 111 and/or the first top plate 112, and the crush portion flange 313 is provided on the third side plate 311 and/or the third top plate 312.
In this embodiment, the first crush zone 1 is formed by butt-joining two left and right first crush frames 11, and each first crush frame 11 includes a first side plate 111 and a first top plate 112. When the first crush portion 1 is formed by butt joint, the two first side plates 111 are located on the left and right sides, and the two first top plates 112 are butt-jointed, so that the first crush portion 1 is box-shaped.
The second crush portion 2 is formed by abutting two left and right second crush frames 21, and the second crush frame 21 includes a second side plate 211 and a second top plate 212. When the second crush portion 2 is butted, the two second side plates 211 are positioned on the left and right sides, and the two second top plates 212 are butted, so that the second crush portion 2 becomes a box shape.
The third crush zone 3 is formed by abutting two left and right third crush cans 31, and the third crush can 31 includes a third side panel 311 and a third top panel 312. When the third crush zone 3 is formed by butt-joining, the two third side plates 311 are positioned on the left and right sides, and the two third top plates 312 are butt-joined, so that the third crush zone 3 is box-shaped.
The first side plate 111 and the second side plate 211 are integrally formed, and the third side plate 311 is connected to the second side plate 211 through the breakable connection 8.
When the collapse occurs, the first side plate 111 collapses and bends, and transmits the force to the second side plate 211. When the second side plate 211 collapses, the force is transmitted to the breakable connection 8, and if the breakable connection 8 breaks, the third side plate 311 is disconnected from the second side plate 211, and the dislocation collapse occurs.
In one embodiment, as shown in fig. 1-2, the second side plate 211 includes a second side plate main plate 2111 and a second side plate extension plate 2112 connected to one end of the second side plate main plate 2111 and extending obliquely toward one side of the second side plate main plate 2111.
The first side plate 111 is located on one side of the second side plate main plate 2111, the first side plate 111 is connected to the second side plate extension plate 2112, and the third side plate 311 is connected to the second side plate main plate 2111.
In one embodiment, the second crush can 21 is integrally formed with the first crush can 11. The second side panel main panel 2111 is integrally formed with the second side panel extension panel 2112.
In one of the embodiments, as shown in fig. 2, the second side plate 211 is provided with a weakening through hole 7. The opening of the weakening through-hole 7 becomes gradually smaller from the middle to both ends in the extending direction along the second side plate 211.
The weakening through hole 7 is in a rhombic shape, two ends of the rhombic weakening through hole 7 are small, the middle of the rhombic weakening through hole 7 is large, the second side plate 211 is guided to collapse towards the middle along the weakening through hole 7 when collision happens by means of the unstable characteristic of the rhombic quadrilateral, and the situation that the second side plate 211 cannot collapse due to too large strength and rigidity is prevented.
In one embodiment, as shown in fig. 1-2, the second side plate 211 includes a second side plate main plate 2111 and a second side plate extension plate 2112 connected to the second side plate main plate 2111 and extending obliquely toward one side of the second side plate main plate 2111.
A portion of the weakened through-hole 7 is provided in the second side panel main panel 2111 and another portion of the weakened through-hole 7 is provided in the second side panel extension panel 2112.
In this embodiment, a part of the weakened through hole 7 is provided in the second side plate main plate 2111, and another part thereof is provided in the second side plate extension plate 2112. When the second side plate main plate 2111 collapses, the second side plate extension plate 2112 collapses firstly, and then the second side plate main plate 2111 is driven to collapse at the bent position, so that the collapsing performance is improved.
In one embodiment, as shown in fig. 1-2, the nut support plate 4 has a support plate flange 43 thereon, and the support plate flange 43 is connected to the first crush portion 1.
In order to prevent that the distance between the instrument board beam 200 and the front wall metal plate is different due to different vehicle types, the instrument board beam 200 cannot be used universally, the length of the flanging 43 of the supporting plate can be adjusted to adapt to vehicle types of different platforms, the distance between the instrument board beam 200 and the front wall metal plate can be flexibly adapted to change, and the generalization of the platform of the instrument board beam is facilitated.
As shown in fig. 4 to 6, an instrument panel beam assembly provided in the embodiment of the present application includes an instrument panel beam 200, a mounting bracket 300 for mounting a positioning instrument panel, a support bracket 400 for supporting a steering mechanism, and a connecting mechanism according to any of the foregoing embodiments.
The mounting bracket 300 and the support bracket 400 are connected to the instrument panel cross member 200, respectively.
The third crush portion 3 is connected to the dash cross member 200, and the mounting bracket 300 and the third crush portion 3 are located on opposite sides of the dash cross member 200.
The side of the second crush portion 2 extends toward the support frame 400 to form a crush portion connecting plate 212, and the crush portion connecting plate 212 is connected to the support frame 400.
The instrument panel cross member assembly provided in the present embodiment includes an instrument panel cross member 200, a mounting bracket 300, a support bracket 400, and a connecting mechanism.
For the structure, structure and operation principle of the connection structure, please refer to the description part of the connection structure, which is not repeated herein.
The dash cross member 200 includes a main cross member 201 and a sub cross member 202, and the main cross member 201 and the sub cross member 202 are connected by a connecting plate 203. The pipe diameter of the auxiliary cross beam 202 is smaller than that of the main cross beam 201, so that the weight of the structure is reduced. When installed, the main cross member 201 is on the cab side.
The mounting bracket 300 is used for mounting a positioning instrument panel, and the mounting bracket 300 is provided with a mounting hole and a positioning hole. The support frame 400 has a stud 401, and the stud 401 is used for mounting a steering mechanism.
The third crumple section 3, the mounting frame 300, and the support frame 400 are connected to the main cross beam 201, respectively. The mounting frame 300 is located at the rear part of the main cross beam 201, the third crush part 3 is located at the front part of the main cross beam 201, and the support frame 400 is located at the bottom part of the main cross beam 201.
The second side plate 212 of the second crush portion 2 is integrally provided with a crush portion connecting plate 212, and the crush portion connecting plate 212 is connected to the support frame 400.
As shown in fig. 6, when the crush tower 100 is impacted by a force F, if the second crush portion 2 is crushed and deformed, the weakened through hole 7 is deformed to an imaginary line (weakened through hole 7 '), the force F is transmitted to the support frame 400 through the crush portion connecting plate 212, the connection between the support frame 400 and the main beam 201 is broken, and the support frame 400 rotates around the main beam 201 to the imaginary line (support frame 400'), so as to prevent the support frame 400 and the associated steering mechanism from intruding into the cabin along the direction of impact force to hurt the passenger.
In one embodiment, as shown in fig. 4 and 6, the supporting frame 400 extends obliquely in a vertical direction, the first end of the supporting frame 400 is higher than the second end of the supporting frame 400, and the crush connection plate 212 is connected to the second end of the supporting frame 400, so that force is transmitted to the supporting frame 400 through the crush connection plate 212, the connection between the supporting frame 400 and the main beam 201 is broken, and the supporting frame 400 can rotate around the main beam 201.
To sum up, coupling mechanism and instrument board beam subassembly that this application provided, when the collision takes place, one in the first portion of crumpling of the support that crumples, the second portion of crumpling, the third portion of crumpling or several crumpling portions can take place to crumple to for the front cabin crumple provides buffer space, spare part extrusion invasion passenger cabin causes the driver to hurt in the front cabin when effectively preventing the collision, has improved the security performance.
According to the requirements, the above technical schemes can be combined to achieve the best technical effect.
What has been described above is merely the principles and preferred embodiments of the present application. It should be noted that, for a person skilled in the art, several other variations can be made on the basis of the principle of the present application, and these should also be considered as the scope of protection of the present application.
Claims (8)
1. A connecting mechanism for connecting a dashboard beam and a front wall sheet metal is characterized in that,
the connecting mechanism comprises a crumple support capable of crumpling and absorbing energy, and the crumple support comprises a first crumple part, a second crumple part and a third crumple part which are sequentially connected;
one end of the first crumple part, which is far away from the third crumple part, is provided with a nut support plate with a gap adjusting nut;
the third crumple part is provided with a crumple part flanging used for being connected with the instrument panel cross beam;
the second crumple part is formed by butting two second crumple frames with a second side plate and a second top plate;
the second side plate is provided with a weakening through hole, and the opening of the weakening through hole is gradually reduced from the middle to two ends in the extending direction of the second side plate;
the second side plate comprises a second side plate main plate and a second side plate extension plate which is connected to the second side plate main plate and extends towards one side of the second side plate main plate in an inclined mode;
a portion of the weakened through-hole is provided in the second side panel main panel, and another portion of the weakened through-hole is provided in the second side panel extension panel.
2. The connection mechanism of claim 1, wherein the third crush portion is connected to the second crush portion by a breakable connection.
3. The attachment mechanism of claim 1 wherein the crush can includes a weakened groove therein.
4. The connecting mechanism according to claim 1, wherein the first crumple is formed by abutting two first crumple frames with a first side plate and a first top plate, and the third crumple is formed by abutting two third crumple frames with a third side plate and a third top plate;
the first side plate, the second side plate and the third side plate are sequentially connected;
the nut supporting plate is connected with the first side plate and/or the first top plate, and the crumple part flanging is arranged on the third side plate and/or the third top plate.
5. The coupling mechanism of claim 4,
the first side plate is arranged on one side of the second side plate main plate, the first side plate is connected with the second side plate extension plate, and the third side plate is connected with the second side plate main plate.
6. The coupling mechanism of claim 1, wherein said nut support plate has a support plate flange thereon, said support plate flange being connected to said first crush portion.
7. An instrument panel beam assembly, comprising an instrument panel beam, a mounting bracket for mounting a positioning instrument panel, a support bracket for supporting a steering mechanism, and the connecting mechanism of any one of claims 1-6;
the mounting frame and the support frame are respectively connected with the instrument board cross beam;
the third crumple part is connected with the instrument panel cross beam, and the mounting frame and the third crumple part are positioned on two opposite sides of the instrument panel cross beam;
the side part of the second crumple part extends towards the support frame side to form a crumple part connecting plate, and the crumple part connecting plate is connected with the support frame.
8. The instrument panel cross member assembly of claim 7 wherein the support bracket extends obliquely in a vertical direction, a first end of the support bracket is higher than a second end of the support bracket, and the crush section web is connected to the second end of the support bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111003851.8A CN113635977B (en) | 2021-08-30 | 2021-08-30 | Connecting mechanism and instrument board beam assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111003851.8A CN113635977B (en) | 2021-08-30 | 2021-08-30 | Connecting mechanism and instrument board beam assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113635977A CN113635977A (en) | 2021-11-12 |
| CN113635977B true CN113635977B (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111003851.8A Active CN113635977B (en) | 2021-08-30 | 2021-08-30 | Connecting mechanism and instrument board beam assembly |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5071583B2 (en) * | 2009-09-25 | 2012-11-14 | トヨタ自動車株式会社 | Instrument panel reinforcement mounting structure for vehicles |
| CN202728361U (en) * | 2012-08-20 | 2013-02-13 | 东风汽车公司 | Steering column fixed support assembly of instrument panel cross beam |
| CN105313986B (en) * | 2014-08-01 | 2018-06-15 | 上海汽车集团股份有限公司 | Fascia board girder |
| CN207106646U (en) * | 2017-08-16 | 2018-03-16 | 吉利汽车研究院（宁波）有限公司 | A kind of connecting bracket of fascia board girder and front wall |
| DE102018126048B4 (en) * | 2018-10-19 | 2020-06-18 | Benteler Automobiltechnik Gmbh | Cross member arrangement in a vehicle |
| CN209426867U (en) * | 2018-11-27 | 2019-09-24 | 重庆金康新能源汽车设计院有限公司 | A kind of dashboard cross member assembly and its vehicle |
| CN210122149U (en) * | 2019-04-23 | 2020-03-03 | 广州小鹏汽车科技有限公司 | Instrument board crossbeam and automobile body connection structure |
| CN111959614A (en) * | 2020-08-28 | 2020-11-20 | 东风汽车集团有限公司 | Front wall support of crumple energy absorption box and instrument board beam |
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2021
- 2021-08-30 CN CN202111003851.8A patent/CN113635977B/en active Active
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