CN102658808A - Split welding type car door anti-collision beam - Google Patents
Split welding type car door anti-collision beam Download PDFInfo
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- CN102658808A CN102658808A CN2012101587428A CN201210158742A CN102658808A CN 102658808 A CN102658808 A CN 102658808A CN 2012101587428 A CN2012101587428 A CN 2012101587428A CN 201210158742 A CN201210158742 A CN 201210158742A CN 102658808 A CN102658808 A CN 102658808A
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Abstract
The invention relates to a split welding type car door anti-collision beam, which is fixedly connected with an inner plate of a car door by welding spots, rivets or bolts. The anti-collision beam consists of an anti-collision beam outer plate and an anti-collision beam cover plate, wherein the anti-collision beam outer plate is manufactured by a bending machining technology, the cross section of the anti-collision beam outer plate is U-shaped and comprises a flange, and the anti-collision beam cover plate is welded on the flange of the anti-collision beam outer plate. A sealed space formed by the anti-collision beam outer plate and the cover plate is filled with light porous material. The anti-collision beam outer plate is divided into four sections according to performance requirement, i.e. an outer plate left first section, an outer plate left second section, an outer plate right second section and an outer plate right first section respectively from left to right, the four sections are connected into a whole in the manner of laser split welding, and the material can be a high-strength steel plate, aluminum plate or magnesium plate. Compared with the prior art, the split welding type car door anti-collision beam can extremely reduce the deformation of the car door when a car is collided, can enhance the anti-pit performance of the car door, and is simple in structure, and high in reliability.
Description
Technical field
The present invention relates to a kind of Automobile part that welds formula, relate in particular to a kind of inboard welding formula door anti-collision joist of car door that is installed in.
Background technology
Safety, energy-saving and environmental protection are three big themes of automobile industry development, and the collision safety problem is the most important thing, and each big car company is being devoted to improve the crash survivability of automobile always.At head-on crash, the side collision of automobile, in the offset collision,, can threaten driver or passenger's life security when serious because the distortion of automobile door structure can influence driver or passenger's injured degree greatly.
At present, in order to address the above problem, traditional settling mode is; On inner plate of car door, install crash bar or Crashworthy plate additional, strengthen the strength and stiffness of door-plate, improve the force-bearing situation of car door and the bang path of power; Reduce the distortion of car door, improve the energy absorption characteristics of car door.But, in conventional confguration, no matter be " bar " formula structure or " beam " formula structure, all there is certain technological deficiency." bar " formula collision prevention girders generally is a pipe, and two ends are connected on the inner plate of car door through connecting support.This structural shielding space is less, and might form wedge angle in breaks, and to occupant's safety formation hidden danger, and its welding performance is also relatively poor.Support also possibly take place in the side impact process come off or weld failure, energy-absorbing effect is reduced greatly." plate " although the design of formula structure is all simpler with layout, owing to adopt the opening section design, bending resistance or torsion stiffness are relatively poor, are difficult to reach the desirable crashproof requirement of present arrangements for automotive doors.
The shortcoming of the collision prevention girders of existing in order to overcome " bar " formula and " plate " formula structure; Patent of invention 200610096205.X has proposed a kind of Crashworthy plate that inner chamber is a closed loop that on inner plate of car door, is furnished with, and this Crashworthy plate can have good longitudinal rigidity and bending stiffness in head-on crash, offset collision or the side collision of automotive front; Strengthen the impact strength of door panels; Have good resistance to bending, can reduce the distortion of car door, can also increase the static extrusion capability of car door.Although the scheme that patent of invention 200610096205.X proposes has overcome the defective of traditional collision prevention girders to a certain extent, yet the crashproof outside plate that constitutes this collision prevention girders is that the sheet material manufacturing by same thickness and same material forms.In fact; Collision prevention girders is at head-on crash, the side collision of automobile; The force-bearing situation at each position is different in the offset collision process; And differ bigger, traditional design method is with the strength of material of the performance requriements that satisfies the dangerous position of collision prevention girders and the sheet thickness selection foundation as the strength of material and the sheet thickness of whole collision prevention girders.Obviously, it is unscientific that the sheet material design plan of same thickness and strength of material is adopted at each position of the crashproof outside plate of collision prevention girders, can not give full play to the potential of material, causes certain waste.On the other hand; Traditional collision prevention girders structure is a hollow structure, if will improve the amount of energy of collision prevention girders, needs to increase the thickness of slab of collision prevention girders parts; Or the higher material of replacement strength grade, this design must cause the increase of impact force and the increase of collision prevention girders quality.Therefore, practical demand obtains a kind of light weight, the more collision prevention girders of energy absorption.
Summary of the invention
The object of the present invention is to provide a kind of vehicle door anti-collision joist that welds formula; Under the prerequisite of guaranteeing the collision prevention girders performance; Reduce weight, design and the manufacture difficulty of door anti-collision joist as far as possible, reduce the cost of vehicle door anti-collision joist, reach the weight-saving design goal of car door simultaneously.
A kind of vehicle door anti-collision joist is made up of collision prevention girders outside plate and collision prevention girders cover plate; The collision prevention girders outside plate is connected through electric welding with said collision prevention girders cover plate; The collision prevention girders outside plate is a U-shaped, and an end of collision prevention girders links to each other with the inner plate of car door of hinge stiffening plate side, and the other end links to each other with the collision prevention girders installation base of the car door opening end of inner plate of car door; Collision prevention girders outside plate and collision prevention girders cover plate are fitted each other and formed a cross section is hollow and thin-walled structure logical in closed loop and the inner chamber; The collision prevention girders cover plate is a long rectangular shape, the collision prevention girders outside plate by the first from left section, the second from left section, right one section and right two sections form, above-mentioned four sections are connected into an integral body through laser assembly solder technical battery.
The first from left section of collision prevention girders outside plate, the second from left section, one section on the right side and right two sections employings form with the different thick plate welding of material, and wherein the thickness of slab on the first from left section and one section on the right side is respectively less than the second from left section of outside plate and right two sections thickness of slab.The first from left section of collision prevention girders outside plate, the second from left section, one section on the right side and right two sections employings form with the plate welding of thick different material, and wherein the strength of material grade on the first from left section and one section on the right side is respectively less than the second from left section of outside plate and right two sections strength of material grade.The first from left section of collision prevention girders outside plate, the second from left section, right one section and right two sections adopt the plate welding of different thick different materials to form, wherein the comprehensive strength of the first from left section and right one section plate is less than the comprehensive strength of the second from left section with the plate on two sections on the outside plate right side.
Be connected through adhesives between the added metal foamed aluminium material in the hollow and thin-walled structure between collision prevention girders outside plate and the said collision prevention girders cover plate, preferred foams aluminium and collision prevention girders outside plate and collision prevention girders cover plate.The density value of metal foam aluminum is 0.4g/cm
3-0.6g/cm
3The flange width h of collision prevention girders outside plate is not less than 20mm.
The invention has the beneficial effects as follows: the present invention is according to the loading characteristic of each section of door anti-collision joist; Collision prevention girders has been divided into four sections from left to right, and the thickness of the plate of each section and material are selected according to the performance requriements of collision prevention girders, have given full play to the material potential of each section; The at utmost low weight of collision prevention girders; Simultaneously, through filled and process aluminum in the enclosure space of collision prevention girders, further improved the deformation stability and the crash-worthiness that has improved collision prevention girders of collision prevention girders.
Description of drawings
Fig. 1 is structural representation of the present invention and installation site;
The structural representation of Fig. 2 collision prevention girders;
The A-A schematic cross-section of Fig. 3 collision prevention girders;
The specific embodiment
As shown in Figure 1, on inner plate of car door 1, being furnished with the cross section is welding formula door anti-collision joist logical in closed loop and the inner chamber, and collision prevention girders is connected with inner plate of car door 1 mutually.Collision prevention girders is fitted each other with crashproof cover plate 2 by crashproof outside plate 3 and is constituted, and crashproof cover plate 2 is connected with inner plate of car door 1.The crashproof cover plate 2 of collision prevention girders is the rectangular plate of a strip; Collision prevention girders outside plate 3 is a U-shaped, and collision prevention girders outside plate 3 is welded into the rectangular flat of a block length by four rectangular flats, and this collision prevention girders outside plate 3 is divided into the first from left section, the second from left section, right one section and right two sections; Rectangular flat after will welding then carries out bending and forms the U-shaped structure; In order to ensure welding operability and the soldering reliability between collision prevention girders outside plate 3 and the collision prevention girders cover plate 2, the flange width h (Fig. 3) of U-shaped is not less than 20mm, and the spot pitch between collision prevention girders outside plate 3 and the collision prevention girders cover plate 2 can be arranged as required; Connection location one end of collision prevention girders links to each other with the inner plate of car door of hinge stiffening plate 4 sides; Particular location is positioned at the midway location of two hinges, and the other end links to each other with the collision prevention girders installation base 5 of the car door opening end of inner plate of car door 1, and whole one-tenth is skewed; The collision prevention girders longitudinal centerline becomes 10 ° to 30 ° with the horizontal direction angle, be preferably 15 °.Collision prevention girders cover plate 2 two ends are connected through spot welding, riveted joint or bolt with inner plate of car door 1.Because the first from left section of collision prevention girders outside plate is joined through collision prevention girders cover plate 2 and inner plate of car door 1 with right one section; Rigidity has obtained reinforcement; In order to ensure the compatibility of deformation property of whole door anti-collision joist in deformation process, actv. traditional load and moment of flexure, and the weight that farthest reduces crashworthiness; Learn through car load side collision simulation analysis and experimental result; In the welding design process of crashworthiness, need satisfy following principle: if the outside plate of collision prevention girders forms with the welding of the different thick plate of material, the first from left section and right one section the thickness of slab of outside plate that then requires collision prevention girders is respectively less than the second from left section of outside plate and right two sections thickness of slab; If the outside plate of collision prevention girders forms with the welding of the plate of thick different material, the first from left section that then requires the collision prevention girders outside plate and right one section strength of material grade are respectively less than the second from left section of outside plate and right two sections strength of material grade; If the plate of the different thick different material of outside plate of collision prevention girders welding forms, the comprehensive strength of outside plate the first from left section and the plate of right one section of outside plate that requires collision prevention girders is less than the comprehensive strength of the plate on two sections on outside plate the second from left section and the outside plate right side.The collision energy-absorbing property of the collision prevention girders of hollow thin-wall structure, loading transfer ability, bending stiffness etc. have certain limitation.If will strengthen the collision energy-absorbing characteristic of collision prevention girders, the loading transfer ability, bending stiffness etc., conventional method is the wall thickness that increases hollow collision prevention girders thin-wall construction, but the thing followed is weight and the cost that has increased door anti-collision joist.Because metal foamed aluminium has lower density, high specific strength and stiffness-to-density ratio and good energy absorption characteristics; Research shows that metal foamed aluminium is inserted thin-wall construction can not only be strengthened the deformation stability of hollow thin-wall structure and improve deformation pattern; And can improve the energy absorption capacity of hollow thin-wall structure, it is high that the energy of its absorption is formed the energy summation that absorbs under its hollow thin-wall structure and the independent respectively stand under load situation of foamed aluminium.Light filling metal foam aluminum in the enclosure space of the present invention between collision prevention girders outside plate and cover plate; The density of metal foam aluminum can be selected for use as required; If when needing the bigger load of collision prevention girders transmission, moment of flexure and absorption more energy; Select the high-density metal foamed aluminium material for use, density value is 0.8g/cm
3When not being too high as if the energy that needs load, moment of flexure and the absorption of collision prevention girders transmission, select low-density metal foam aluminum for use so that further reduce the weight and the cost of collision prevention girders, density is 0.2g/cm
3Preferably use density value to be 0.4g/cm generally speaking
3-0.6g/cm
3Between the metal foam aluminum of intermediate density.The metal foamed aluminium of filling is connected through adhesive agent with thin-wall construction.
Claims (7)
1. vehicle door anti-collision joist; It comprises collision prevention girders outside plate (3) and collision prevention girders cover plate (2); Said collision prevention girders outside plate is connected through electric welding with said collision prevention girders cover plate, and said collision prevention girders outside plate is a U-shaped, and an end of said collision prevention girders links to each other with the inner plate of car door (1) of hinge stiffening plate (4) side; The other end links to each other with the collision prevention girders installation base (5) of the car door opening end of inner plate of car door (1); It is characterized in that said collision prevention girders outside plate and collision prevention girders cover plate are fitted each other and formed a cross section is hollow and thin-walled structure logical in closed loop and the inner chamber, said collision prevention girders cover plate is a long rectangular shape; Said collision prevention girders outside plate by the first from left section, the second from left section, right one section and right two sections form, above-mentioned four sections are connected into an integral body through laser assembly solder technical battery.
2. collision prevention girders as claimed in claim 1; It is characterized in that; The first from left section of said collision prevention girders outside plate, the second from left section, one section on the right side and right two sections employings form with the different thick plate welding of material, and wherein the thickness of slab on the first from left section and one section on the right side is respectively less than the second from left section of outside plate and right two sections thickness of slab.
3. collision prevention girders as claimed in claim 1; It is characterized in that; The first from left section of said collision prevention girders outside plate, the second from left section, one section on the right side and right two sections employings form with the plate welding of thick different material, and wherein the strength of material grade on the first from left section and one section on the right side is respectively less than the second from left section of outside plate and right two sections strength of material grade.
4. collision prevention girders as claimed in claim 1; It is characterized in that; The first from left section of said collision prevention girders outside plate, the second from left section, right one section and right two sections adopt the plate welding of different thick different materials to form, wherein the comprehensive strength of the first from left section and right one section plate is less than the comprehensive strength of the second from left section with the plate on two sections on the outside plate right side.
5. like the arbitrary described collision prevention girders of claim 1-4; It is characterized in that; Be connected through adhesives between the added metal foamed aluminium material in the hollow and thin-walled structure between said collision prevention girders outside plate and the said collision prevention girders cover plate, preferred foams aluminium and collision prevention girders outside plate and collision prevention girders cover plate.
6. collision prevention girders as claimed in claim 6 is characterized in that, the density value of said metal foam aluminum is 0.4g/cm
3-0.6g/cm
3
7. collision prevention girders as claimed in claim 6 is characterized in that, the flange width h of said collision prevention girders outside plate is not less than 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210158742.8A CN102658808B (en) | 2012-05-21 | 2012-05-21 | Split welding type car door anti-collision beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210158742.8A CN102658808B (en) | 2012-05-21 | 2012-05-21 | Split welding type car door anti-collision beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102658808A true CN102658808A (en) | 2012-09-12 |
| CN102658808B CN102658808B (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210158742.8A Expired - Fee Related CN102658808B (en) | 2012-05-21 | 2012-05-21 | Split welding type car door anti-collision beam |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105691165A (en) * | 2016-03-19 | 2016-06-22 | 安徽国德新能源汽车有限公司 | Car door anti-collision beam structure with good buffer performance and production process thereof |
| CN106004369A (en) * | 2016-07-05 | 2016-10-12 | 华南理工大学 | Safety door structure made of PDCPD (Polydicyclopentadiene) material |
| CN106042855A (en) * | 2016-06-12 | 2016-10-26 | 洛阳北方易初摩托车有限公司 | Four-wheeler side anti-collision structure |
| CN107921850A (en) * | 2015-04-20 | 2018-04-17 | 标致雪铁龙汽车股份有限公司 | It is capable of the compacting reinforcing beam of sequencing deformation |
| CN107972453A (en) * | 2016-10-21 | 2018-05-01 | 马格纳斯泰尔汽车技术两合公司 | Car door |
| CN109515128A (en) * | 2018-10-25 | 2019-03-26 | 北京长城华冠汽车科技股份有限公司 | The door lock striker plate assembly and new-energy automobile of new-energy automobile |
| CN112009217A (en) * | 2020-07-23 | 2020-12-01 | 中国第一汽车股份有限公司 | Composite material vehicle door anti-collision beam and preparation method thereof |
| CN115303035A (en) * | 2022-06-30 | 2022-11-08 | 重庆长安汽车股份有限公司 | Car door anti-collision beam with energy-absorbing inner core |
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Patent Citations (7)
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| JPH0424118A (en) * | 1990-05-16 | 1992-01-28 | Yamakawa Ind Co Ltd | Automobile door guard |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107921850A (en) * | 2015-04-20 | 2018-04-17 | 标致雪铁龙汽车股份有限公司 | It is capable of the compacting reinforcing beam of sequencing deformation |
| CN105691165A (en) * | 2016-03-19 | 2016-06-22 | 安徽国德新能源汽车有限公司 | Car door anti-collision beam structure with good buffer performance and production process thereof |
| CN106042855A (en) * | 2016-06-12 | 2016-10-26 | 洛阳北方易初摩托车有限公司 | Four-wheeler side anti-collision structure |
| CN106004369A (en) * | 2016-07-05 | 2016-10-12 | 华南理工大学 | Safety door structure made of PDCPD (Polydicyclopentadiene) material |
| CN107972453A (en) * | 2016-10-21 | 2018-05-01 | 马格纳斯泰尔汽车技术两合公司 | Car door |
| CN109515128A (en) * | 2018-10-25 | 2019-03-26 | 北京长城华冠汽车科技股份有限公司 | The door lock striker plate assembly and new-energy automobile of new-energy automobile |
| CN109515128B (en) * | 2018-10-25 | 2020-04-10 | 北京长城华冠汽车科技股份有限公司 | New energy automobile's door frame assembly and new energy automobile |
| CN112009217A (en) * | 2020-07-23 | 2020-12-01 | 中国第一汽车股份有限公司 | Composite material vehicle door anti-collision beam and preparation method thereof |
| CN115303035A (en) * | 2022-06-30 | 2022-11-08 | 重庆长安汽车股份有限公司 | Car door anti-collision beam with energy-absorbing inner core |
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|---|---|
| CN102658808B (en) | 2014-07-02 |
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Granted publication date: 20140702 Termination date: 20160521 |