CN101214828A - Auxiliary frame of passenger car - Google Patents

Auxiliary frame of passenger car Download PDF

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Publication number
CN101214828A
CN101214828A CNA2007100330711A CN200710033071A CN101214828A CN 101214828 A CN101214828 A CN 101214828A CN A2007100330711 A CNA2007100330711 A CN A2007100330711A CN 200710033071 A CN200710033071 A CN 200710033071A CN 101214828 A CN101214828 A CN 101214828A
Authority
CN
China
Prior art keywords
area
bridging
passenger car
longeron
auxiliary frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2007100330711A
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Chinese (zh)
Inventor
吕波涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chery Automobile Co Ltd
Original Assignee
Chery Automobile Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chery Automobile Co Ltd filed Critical Chery Automobile Co Ltd
Priority to CNA2007100330711A priority Critical patent/CN101214828A/en
Publication of CN101214828A publication Critical patent/CN101214828A/en
Pending legal-status Critical Current

Links

Abstract

The invention provides a subframe of a passenger car. The key structure is that a transverse support beam of a water tank is positioned along the front and back direction from the front side to the back side, a front horizontal beam, a left and right vertical beams and a back horizontal beam are welded to form an approximate square frame, and a left transition beam and a right transition beam are positioned between the support beam of the water tank and the front horizontal beam in symmetry. A front side area I containing the left transition beam and the right transition beam and an area II located from the back side of the left transition beam and the right transition beam to the front side of the back horizontal beam and near the back horizontal beam are energy absorption deformation area. The invention has the advantages of absorbing more energy by the subframe during the collision of the entire passenger car, the deformation in the passenger area as small as possible and protecting the safety of passengers.

Description

A kind of auxiliary frame of passenger car
Technical field
The present invention relates to a kind of structure design of auxiliary frame of passenger car.
Background technology
A kind of auxiliary frame of passenger car acts in car load and is considered to be used for connection parts, dynamic assembly etc. usually in the prior art, play a supporting role, in addition, play in a sense and improve body stiffness, intensity effect, yet the subframe role does not cause enough attention in the car load collision.
Summary of the invention
Purpose of the present invention just provides a kind of auxiliary frame of passenger car, and subframe can absorb more energy in the car load collision, and as far as possible little in the passenger area distortion, the protection passenger safety.
For achieving the above object, the present invention has adopted following technical scheme: a kind of auxiliary frame of passenger car, key is: after going to horizontal water tank support beam is arranged along the car load fore-and-aft direction, front cross rail, left-right longeron and after cross member welding constitute the framework of general square shape, be symmetrically arranged with left and right bridging beam excessively between water tank support beam and the front cross rail, containing the described left and right rear side of crossing the front side area I at bridging beam place, described left and right bridging beam excessively is the energy-absorbing deforming zone to the after cross member front side and near the area I I between the after cross member.
In the technique scheme, according to subframe present position in car load, in design subframe is divided into three zones: 1, contain the described left and right front side area I of crossing the bridging beam place, this area I is the energy-absorbing district, is out of shape in the collision to absorb more energy as far as possible; 2, the described left and right rear side of crossing bridging beam is to the after cross member front side and near the area I I between the after cross member, and distortion as much as possible takes place this area I I, is bending with area I II boundary simultaneously; Area I I rear side, contain after cross member and left-right longeron the posterior segment at interior area I II, this area I II has enough rigidity, intensity, does not deform power chassis runner transmission rearward.This shows, be arranged in, the area I of front, II be the energy-absorbing district, in the collision as far as possible distortion absorb more energy, make the deflection of passenger area reach minimum, guarantee passenger safety.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2, be A-A among Fig. 1, cutaway view;
Fig. 3, be B-B among Fig. 1, cutaway view
Fig. 4, be C-C among Fig. 1, cutaway view;
Fig. 5 was the structural representation of bridging beam;
Fig. 6 is the left view of Fig. 5;
Fig. 7 is an A-A cutaway view among Fig. 5.
The specific embodiment
A kind of auxiliary frame of passenger car, after going to, horizontal water tank support beam 10 is arranged along the car load fore-and-aft direction, front cross rail 30, left-right longeron 40,50 and after cross member 60 welding constitute the framework of general square shape, be symmetrically arranged with left and right bridging beam 20 excessively between water tank support beam 10 and the front cross rail 30, containing the described left and right rear side of crossing the front side area I at bridging beam 20 places, described left and right bridging beam 20 excessively is the energy-absorbing deforming zone to after cross member 60 front sides and near the area I I between the after cross member 60.
The resistance to compression of the left and right bridging beam 20 excessively in the described area I and/or bending strength are less than the resistance to compression and/or the bending strength of left-right longeron in the area I I 40,50.
For the resistance to compression that realizes above-mentioned zone I, area I I place and/or bending strength become big design after by forward direction gradually, the present invention is concrete to adopt following preferred version.
The left and right sheet metal thickness of crossing the sheet metal thickness of bridging beam 20 less than left-right longeron in the area I I 40,50 in the described area I, the left and right contour area of crossing the contour area in bridging beam 20 cross sections less than left-right longeron 40,50 cross sections.In the actual product, left and right bridging beam 20 sheet metal thicknesses excessively are 1.5mm, less than 40,50 thickness of the left-right longeron in the area I I is the sheet metal thickness of 2mm, therefore guarantee that in collision left and right in the area I crosses crumple fully earlier behind bridging beam 20 energy-absorbings, crumple could take place in the left-right longeron 40,50 in the area I I then.
The left and right cross section profile of crossing bridging beam 20 in the described area I is an oblong, the left and right cross section profile zone of crossing the cross section profile zone of bridging beam 20 front ends less than the rear end, and transition gradually from front to back, shown in Fig. 5,6,7, be exactly the left and right bridging beam 20 of crossing, section form is along the car load direction, and anterior section is little, the rear portion section becomes big gradually naturally, can guarantee left and right fully progressively crumple of bridging beam 20 excessively in the collision like this, and can not bend.
The cross section profile zone of the front end of described left-right longeron 40,50 is less than the cross section profile zone of rear end.
The zone that the cross section profile of the front end of described left-right longeron 40,50 surrounds is T, and the zone that the cross section profile of the rear end of left-right longeron 40,50 surrounds is square, and its inner horizontal brace panel 41 that has.
After the left and right complete crumple of bridging beam 20 energy-absorbing beams excessively in the area I, power passes to area I I, cut open with B-B as the A-A among Fig. 1 and to cut open contrast, A-A cuts open and is positioned at area I I, what specifically analyse and observe is the position of the front end of left-right longeron 40,50, and the zone that cross section profile surrounds is T and is meant the T shape of showing state for sleeping in, also can regard the zone of a general square shape as, the zone of having removed two little square region of bottom right A and upper right B and having formed, promptly the zone that dotted line surrounds among Fig. 2 is removed.This A-A cuts open zone that the position cross section profile surrounds and cuts open the zone at position less than B-B, and B-B cuts open the position and is positioned at area I II.
In conjunction with Fig. 3, B-B in the area I II cuts open in the cross section structure at position, left side longeron 40 comprises that the trough plate 42 and dull and stereotyped 43 of being with flange is welded, brace panel 41 of position welding placed in the middle in it, the cross section of brace panel 41 is a flute profile, the cell wall welding of its cell wall and trough plate 42, and its notch direction unanimity.
In conjunction with Fig. 2, shown in 3, the area that left side longeron 40 is positioned at the A-A section adds A, the area sum at B two places equals the area that left longeron 40 is positioned at the B-B section, simultaneously because the setting of brace panel 41, guarantee that area I II has enough intensity, rigidity and can not being out of shape easily, area I I crumple under the effect of impact force, arrive to a certain degree, in area I I and area I II junction, the place that begins that brace panel 41 just is set bends, complete and the area I I of area I I crumple, after the bending of III boundary, therefore area I II has enough intensity owing to increase brace panel 41, rigidity guarantees that area I II does not deform, but impact force is passed to the chassis runner of back.Identical and the symmetric arrangement of the structure of left and right longeron 40,
Described front cross rail 30 comprises flat board 31, and flat board 31 is welded as a whole with the mouth limit portion of the trough plate 32 of band flange, and it is L shaped gusset 33 that a cross section is set in the square region that surrounds, and described gusset 33 is welded as a whole along the bottom surface and the side of trough plate 32.
Said structure has enough lateral stiffnesses when having guaranteed collision, laterally bending does not take place causes dynamic assembly to invade the front deck passenger area, front cross rail 30 places increase gusset 33, design and cross-beam body fully the fit increase that be welded to connect brace panel of gusset 33 by having the end flange makes subframe that enough transverse strengths, rigidity be arranged, and do not send out laterally bending.
Adopt the present invention, subframe absorbs energy and reaches car load and collide energy-producingly 21.6% in the car load head-on crash, and general vehicle reaches about 15%; Subframe absorbs energy and reaches car load and collide energy-producing 15% energy in the offset collision, and general vehicle reaches about 10%.

Claims (8)

1. auxiliary frame of passenger car, it is characterized in that: after going to, horizontal water tank support beam (10) is arranged along the car load fore-and-aft direction, front cross rail (30), left-right longeron (40), (50) and after cross member (60) welding constitute the framework of general square shape, be symmetrically arranged with left and right bridging beam (20) excessively between water tank support beam (10) and the front cross rail (30), containing the described left and right rear side of crossing the front side area I at bridging beam (20) place, described left and right bridging beam (20) excessively is the energy-absorbing deforming zone to after cross member (60) front side and near the area I I between the after cross member (60).
2. a kind of auxiliary frame of passenger car according to claim 1 is characterized in that: the resistance to compression of the left and right bridging beam (20) excessively in the described area I and/or bending strength are less than the resistance to compression and/or the bending strength of left-right longeron (40), (50) in the area I I.
3. a kind of auxiliary frame of passenger car according to claim 1 and 2, it is characterized in that: the left and right sheet metal thickness of crossing the sheet metal thickness of bridging beam (20) less than left-right longeron (40), (50) in the area I I in the described area I, the left and right contour area of crossing the contour area in bridging beam (20) cross section less than left-right longeron (40), (50) cross section.
4. a kind of auxiliary frame of passenger car according to claim 1 and 2, it is characterized in that: the left and right cross section profile of crossing bridging beam (20) in the described area I is an oblong, the left and right cross section profile zone of crossing the cross section profile zone of bridging beam (20) front end less than the rear end, and transition gradually from front to back.
5. a kind of auxiliary frame of passenger car according to claim 1 and 2 is characterized in that: the cross section profile zone of the front end of described left-right longeron (40), (50) is less than the cross section profile zone of rear end.
6. a kind of auxiliary frame of passenger car according to claim 5, it is characterized in that: the zone that the cross section profile of the front end of described left-right longeron (40), (50) surrounds is T, the zone that the cross section profile of the rear end of left-right longeron (40), (50) surrounds is square, and its inner horizontal brace panel (41) that has.
7. a kind of auxiliary frame of passenger car according to claim 1 and 2, it is characterized in that: described front cross rail (30) comprises flat board (31), dull and stereotyped (31) are welded as a whole with the mouth limit portion of the trough plate (32) of band flange, and it is L shaped gusset (33) that a cross section is set in the square region that surrounds.
8. a kind of auxiliary frame of passenger car according to claim 7 is characterized in that: described gusset (33) is welded as a whole along the bottom surface and the side of trough plate (32).
CNA2007100330711A 2007-12-30 2007-12-30 Auxiliary frame of passenger car Pending CN101214828A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007100330711A CN101214828A (en) 2007-12-30 2007-12-30 Auxiliary frame of passenger car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007100330711A CN101214828A (en) 2007-12-30 2007-12-30 Auxiliary frame of passenger car

Publications (1)

Publication Number Publication Date
CN101214828A true CN101214828A (en) 2008-07-09

Family

ID=39621356

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007100330711A Pending CN101214828A (en) 2007-12-30 2007-12-30 Auxiliary frame of passenger car

Country Status (1)

Country Link
CN (1) CN101214828A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103802887A (en) * 2012-11-08 2014-05-21 重庆长安汽车股份有限公司 Front structure of automotive body
CN104828141A (en) * 2014-11-14 2015-08-12 北汽福田汽车股份有限公司 Transmission shaft installation structure and vehicle having transmission shaft installation structure
WO2019001490A1 (en) * 2017-06-30 2019-01-03 比亚迪股份有限公司 Vehicle body structure and vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103802887A (en) * 2012-11-08 2014-05-21 重庆长安汽车股份有限公司 Front structure of automotive body
CN103802887B (en) * 2012-11-08 2016-03-30 重庆长安汽车股份有限公司 A kind of front part structure of vehicle body
CN104828141A (en) * 2014-11-14 2015-08-12 北汽福田汽车股份有限公司 Transmission shaft installation structure and vehicle having transmission shaft installation structure
WO2019001490A1 (en) * 2017-06-30 2019-01-03 比亚迪股份有限公司 Vehicle body structure and vehicle

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Open date: 20080709

C02 Deemed withdrawal of patent application after publication (patent law 2001)