CN103241292B - Vehicle body front structure - Google Patents
Vehicle body front structure Download PDFInfo
- Publication number
- CN103241292B CN103241292B CN201310040902.3A CN201310040902A CN103241292B CN 103241292 B CN103241292 B CN 103241292B CN 201310040902 A CN201310040902 A CN 201310040902A CN 103241292 B CN103241292 B CN 103241292B
- Authority
- CN
- China
- Prior art keywords
- front panel
- panel
- vehicle
- mentioned
- vehicle body
- 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.)
- Expired - Fee Related
Links
Landscapes
- Body Structure For Vehicles (AREA)
Abstract
The invention provides a kind of vehicle body front structure that can not reduce space availability ratio ground reinforcement front panel.This vehicle body front structure comprises front panel (10), the position of dividing right and left of lower front panel (11) is bonded to left side brace panel (41) and the right side brace panel (42) of the surface rigidity for improving lower front panel (11) respectively, to be bonded to the L word reinforcement (50) of cross section in L-shaped on vehicle above-below direction across by lower engages male edge (11f) and the mode of corner part that formed along the general portion (11c) that vehicle above-below direction extends in lower front panel (11), L word reinforcement (50) be configured to overall width direction extend and with left side brace panel (41) and right side brace panel (42) overlapping at vehicle fore-and-aft direction.
Description
Technical field
The present invention relates to the vehicle body front structure that a kind of rigidity at vehicle fore-and-aft direction to front panel carries out reinforcement.
Background technology
In the past, the structure being arranged on the front panel of body forward structure was generally as follows: this front panel is engaged up and down by welding by upper front panel and lower front panel and formed, and this front panel engages the air regulator shroud upper panel (cowl upper) of supporting Windshield.
In this vehicle body front structure, be known to the structure (for example, referring to patent documentation 1) of the rigidity on vehicle fore-and-aft direction of front panel being carried out to reinforcement.
In this patent documentation 1, disclose along overall width direction extended front panel crossbeam (Japanese: ダ ッ シ ュ Network ロ ス メ Application バ), form closed section between the upper rear surface side of this front panel crossbeam and lower front panel, and be provided with structure front panel crossbeam and upper front panel being combined the reinforcement bracket carrying out reinforcement.
In the conventional art, the joint portion between front panel and lower front panel can be suppressed to carry out swinging deformation in the direction from front to rear of a vehicle body, realize vibration countermeasure and the noise countermeasure of vehicle body.
Patent documentation 1: Japanese Unexamined Patent Publication 2011-37288 publication
But, in above-mentioned conventional art, owing to forming closed section between front panel crossbeam and lower front panel, therefore have front panel crossbeam outstanding in space, car room, and the problem that the space availability ratio reducing the car interior space is such.
Summary of the invention
The present invention pays close attention to the problems referred to above and makes, and its object is to provides a kind of vehicle body front structure front panel being carried out with can not reducing space availability ratio to reinforcement.
In order to achieve the above object, the feature of vehicle body front structure of the present invention is, to be bonded to L word reinforcement across by engages male edge and the mode of corner part that formed in the general portion that vehicle above-below direction extends in lower front panel, the cross section of this L word reinforcement on vehicle above-below direction in L-shaped, this L word reinforcement be configured to extend in overall width direction and with left side brace panel and right side brace panel overlapping on vehicle fore-and-aft direction.
Vehicle body front structure of the present invention utilizes the L word reinforcement engaged with lower front panel face to carry out reinforcement to the rigidity at vehicle fore-and-aft direction of front panel, therefore, with form the way of closed section between front panel crossbeam and lower front panel compared with, space availability ratio can be improved.
And because L word reinforcement is bonded on the corner part formed by the general portion of lower front panel and engages male edge, therefore L word reinforcement can obtain the rigidity higher than the structure only engaged with the face, general portion of lower front panel.Further, because L word reinforcement configures along the mode that vehicle fore-and-aft direction is overlapping with left side brace panel and right side brace panel to make its both ends, overall width direction, therefore compared with only overlapping with lower front panel and the structure that configures, higher rigidity can be obtained.
So, the present invention can not reduce space availability ratio ground reinforcement front panel.
Accompanying drawing explanation
Fig. 1 represents the front view applying the state of the front panel part of the vehicle body front structure of embodiment seen from vehicle front.
Fig. 2 is the longitudinal sectional view of the vehicle body front structure representing embodiment, illustrates the section of the position along S2-S2 line of Fig. 1.
Fig. 3 is the transverse sectional view of the vehicle body front structure representing embodiment, illustrates the section of the position along S3-S3 line of Fig. 1.
Fig. 4 represents the frequency characteristic figure producing analog result when vibrating in the vehicle body front structure of embodiment, and solid line represents the result of present embodiment, and dotted line represents the result of comparative example.
Fig. 5 is the tone sense degree characteristic map of the frequency band of regulation when the link component inputted vibration of the left and right from draft hitch, and solid line represents the characteristic of present embodiment, and dotted line represents the characteristic of comparative example.
Fig. 6 is the tone sense degree characteristic map of the frequency band of regulation when from draft hitch inputted vibration, (a) of Fig. 6 represents the situation when depression bar inputs, (b) of Fig. 6 represents the situation when link component inputs, and (c) of Fig. 6 is situation when representing that self-supporting rod inputs.In addition, identically with Fig. 5, solid line represents the characteristic of present embodiment, and dotted line represents the characteristic of comparative example.
Detailed description of the invention
Below, shown with reference to the accompanying drawings embodiment illustrates the preferred configuration realizing vehicle body front structure of the present invention.
embodiment 1
Fig. 1 represents the front view applying the state of the front panel of the vehicle body front structure of embodiments of the present invention 1 seen from vehicle front side.
This vehicle body front structure comprises front panel 10, air regulator shroud upper panel 20, lower front panel crossbeam 30, left side brace panel 41, right side brace panel 42 and L word reinforcement 50.In addition, in this Fig. 1 and other figure, arrow X represents overall width direction, and arrow Y represents vehicle fore-and-aft direction, and arrow Z represents vehicle above-below direction.
Front panel 10 divides engine room ER and car room RM(with reference to Fig. 2) plate, it is engaged by the upper end of lower front panel 11 and the bottom of upper front panel 12 and is formed.
As shown in Figure 2, this joint is performed such, that is: the upper engages male edge 12f that the lower engages male edge 11f bent to vehicle front the upper end of lower front panel 11 and the bottom of upper front panel 12 bend to vehicle front is overlapping at vehicle above-below direction, and welds both.
In addition, on the front surface 11a in the face as vehicle front side of the bottom of lower front panel 11, the upper and lower flange 31,32 as illustrated cross section the lower front panel crossbeam 30 being hat-shaped is welded in lower front panel 11 and makes both engage.As shown in Figure 1, front panel crossbeam 30c under front panel crossbeam 30a, the lower front panel crossbeam 30b of central authorities under left side and right side couples together and is formed by lower front panel crossbeam 30 on overall width direction.
Turn back to Fig. 2, have air regulator shroud upper panel 20 in the upper bond of front panel 10.This air regulator shroud upper panel 20 is for supporting Windshield (omitting diagram), the general portion 21 including the word of falling L cross sectional shape and the flange part 22 be connected with the upper rear in general portion 21.And flange part 22 engages with the upper end of upper front panel 12, general portion 21 is connected with the upper end of upper front panel 12 and extends to vehicle front, and extends to under-vehicle from relative to upper front panel 12 to vehicle front and position that on this, front panel 12 is separated.The lower end in the general portion 21 of this air regulator shroud upper panel 20 does not engage with upper front panel 12, and air bellow (Japanese: the エ ア ボ ッ Network ス) AB be formed between the two is configured to opening section structure (Japanese: Open section Agencies makes).
Turning back to Fig. 1, to be separately positioned on the overall width direction left and right sides of lower front panel 11 for improving the left side brace panel 41 of the surface rigidity of lower front panel 11 and right side brace panel 42 along overall width direction dividually.As represent the section of the position along S3-S3 line of Fig. 1 Fig. 3 shown in, two reinforcements 41,42 engage with the rear surface 11b in the face as rear view of vehicle side of lower front panel 11, in addition, as shown in Figure 1, two reinforcements 41,42 are configured on the position of separating with upper front panel 12 downward.
And, be provided with in the bottom of the front surface 11a of lower front panel 11 for insert eliminate graphic steering shaft turn to port lid component 43.
And, as shown in Figure 2, in the upper end of lower front panel 11, be provided with L word reinforcement 50 at the corner part of the L word formed by lower engages male edge 11f and the general portion 11c that extends downwards.
L word reinforcement 50 by extend at vehicle fore-and-aft direction and be bonded on by welding lower engages male edge 11f upper slice 51 and from upper slice 51 extend downwards and pass through to weld and the bottom sheet 52 that engages with the general portion 11c of lower front panel 11 to be formed as cross section be L-shaped.
And as shown in Figure 1, L word reinforcement 50 extends in overall width direction, and its both ends, overall width direction configure at vehicle fore-and-aft direction overlappingly with the top of left side brace panel 41 and the top of right side brace panel 42 respectively.
Then, the effect of embodiment is described.
When this effect is described, first embodiment problem to be solved is described.
Be known to when the top of front panel arranges air regulator shroud upper panel, make the bottom of air regulator shroud upper panel be bonded on front panel and form the structure of the air bellow of closed section between.
But, when result in formation of air bellow, needed for the rigidity of this part can become more than sometimes, the rigidity of expectation can not be obtained.
On the other hand, if air bellow is set to open cross sectional shape, then the rigidity of this air bellow part can be made to be reduced to the rigidity of expectation, but the rigidity at fore-and-aft direction of front panel is not enough, likely can cause body vibrations or vehicle body noise.
In the technology described in aforesaid patent documentation 1, the rigidity at vehicle fore-and-aft direction of front panel can be improved, but as aforementioned, space availability ratio reduces.And, owing to adopting this structure, arrange in the rear surface of front panel improve sound shake the dash insulator of performance time, front panel crossbeam hinders this setting, causes the set amount of dash insulator sometimes, setting area can be not enough., likely there is sound from intermediate frequency tremendously high frequency and to shake performance deficiency in its result.
To this, the vehicle body front structure of present embodiment can reach the following action effect enumerated.
A) vehicle body front structure of present embodiment 1 adopts such structure: include the front panel 10 making the top of lower front panel 11 and the bottom of upper front panel 12 be engaged with each other at two engages male edges 11f, 12f extending from each plate 11,12 along vehicle fore-and-aft direction and be formed; The position of dividing right and left of lower front panel 11 is bonded to the left side brace panel 41 for the surface rigidity of front panel 11 under improving and right side brace panel 42 respectively; In lower front panel 11 to be bonded to across by lower engages male edge 11f with in the mode of corner part that the general portion 11c that vehicle above-below direction extends is formed the L word reinforcement 50 that cross section is L-shaped at vehicle above-below direction; L word reinforcement 50 be configured to overall width direction extend and with left side brace panel 41 and right side brace panel 42 overlapping at vehicle fore-and-aft direction.
So, lower engages male edge 11f and the general portion 11c of L word reinforcement 50 and lower front panel 11 engage, and between L word reinforcement 50 and lower front panel 11, do not form closed section, and therefore space availability ratio is excellent.
And two brace panels 41,42 of L word reinforcement 50 at its both ends, overall width direction with the surface rigidity for front panel 11 under improving engage along up and down, the position front panel 11 that vehicle fore-and-aft direction is overlapping.Therefore, and only L word reinforcement 50 is bonded on compared with the structure in lower front panel 11, the rigidity of front panel 10 can be improved.And, two brace panels 41,42 arranged owing to utilizing the surface rigidity in order to improve lower front panel 11 improve the reinforcing effect from L word reinforcement 50 further, compared with the structure of therefore special with arranging L word reinforcement 50 brace panel, excellent on economic aspect.
So, present embodiment can not reduce space availability ratio ground reinforcement front panel.
B) vehicle body front structure of embodiment 1 is as follows: lower engages male edge 11f is extended to vehicle front, and L word reinforcement 50 is bonded on the front surface of lower front panel 11 and the lower surface of lower engages male edge 11f.
Therefore, in the rear surface as RM side, car room of lower front panel 11, the protuberance produced less than the setting at passenger compartment side formation reason L word reinforcement 50, thus the space availability ratio of RM side, car room can be improved.So, L word reinforcement 50 can't become to arrange in the passenger compartment side of front panel 10 improve sound shake the dash insulator of performance time obstruction, sound can be sought and to shake the raising of performance.
C) vehicle body front structure of embodiment 1 is as follows: air regulator shroud upper panel 20 extends from the top of upper front panel 12 to vehicle front, bottom and the upper front panel 12 of this air regulator shroud upper panel 20 are separated, and the air bellow AB be formed between the two is formed as open cross sectional shape structure.
Thus, can the rigidity of vehicle front upper part do not made higher than while required, also can not as above-mentioned a) space availability ratio is reduced when reinforcement front panel.
Then, add illustrate above-mentioned a) described in sound to shake effect.
Fig. 4 represents the frequency characteristic figure producing analog result when vibrating in the vehicle body front structure of embodiment, and solid line represents the result of present embodiment, and dotted line represents the result of comparative example.In addition, comparative example is the structure not arranging L word reinforcement 50.
As shown in the drawing, known frequency between n2 ~ n4 compared with in the frequency band of large regions, its sound pressure level declines, maximum have reduce the effect of about 1dB.
Fig. 5 is the part especially large to the contribution of above-mentioned vibration suppressioning effect, represents the figure of the sound sensitivity characteristic of the frequency band of the regulation when the link component inputted vibration of the left and right certainly eliminating graphic draft hitch.
Fig. 5 is also identical with Fig. 4, and solid line represents the result of present embodiment, and dotted line represents the result of comparative example.As shown in Figure 5, known: in the frequency domain of frequency more than n2, exceeded in the region R of target level ML at comparative example, the sound pressure level of present embodiment is lower than target level.
In addition, Fig. 6 is the tone sense degree characteristic map of the frequency band of regulation when certainly eliminating graphic draft hitch inputted vibration, (a) of Fig. 6 represents the situation when depression bar (omitting diagram) input, (b) of Fig. 6 represents the situation when link component (omitting diagram) input, and (c) of Fig. 6 represents situation during self-supporting rod (omitting diagram) input.
As shown in these figures, the known sound that obtains in frequency frequency band Ra, Rb, Rc more than the regulation of n2 vibrates input constraint effect, especially, as aforementioned higher to the sound vibration input constraint effect from link component input condition.
Above, describe vehicle body front structure of the present invention according to embodiment, but concrete structure is not limited to this embodiment, only otherwise depart from the purport of the claimed invention of each claim of claims, allows design modification or interpolation etc.
Such as, in embodiments, L word reinforcement and left side brace panel and L word reinforcement and right side brace panel are set in the front and back different surfaces of lower front panel, but same surface before and after both can being set in, also can with embodiment before and after set on the contrary.
In addition, in embodiments, make air bellow be formed opening section structure to make the lower end of air regulator shroud upper panel not engage with lower front panel, but also can engage both and make air bellow form closed section structure.In this case, preferably, air regulator shroud upper panel etc. is arranged the fragile part being used for the rigidity of air bellow being set as the rigidity expected.
description of reference numerals
10 front panel; 11 times front panel; The general portion of 11c; Engages male edge under 11f; Front panel on 12; 20 air regulator shroud uppers panel; Brace panel on the left of in the of 41; Brace panel on the right side of in the of 42; 50L word reinforcement; AB air bellow; RM car room.
Claims (3)
1. a vehicle body front structure, this vehicle body front structure includes and the bottom of the top of lower front panel and upper front panel is engaged with each other in the engages male edge extended from each plate along vehicle fore-and-aft direction and the front panel formed, and it is characterized in that,
The position of dividing right and left in above-mentioned lower front panel is bonded to respectively the left side brace panel for the surface rigidity of front panel under improving and right side brace panel;
In above-mentioned lower front panel, to be bonded to L word reinforcement across by above-mentioned engages male edge and the mode of corner part that formed along the general portion that vehicle above-below direction extends, the cross section of this L word reinforcement on vehicle above-below direction in L-shaped;
This L word reinforcement be configured to overall width direction extend and with above-mentioned left side brace panel and above-mentioned right side brace panel overlapping on vehicle fore-and-aft direction.
2. vehicle body front structure according to claim 1, is characterized in that,
Above-mentioned engages male edge extends to vehicle front;
Above-mentioned L word reinforcement is bonded on the vehicle front surface of above-mentioned lower front panel and the lower surface of above-mentioned engages male edge.
3. vehicle body front structure according to claim 1 and 2, is characterized in that,
Air regulator shroud upper panel is extended with to vehicle front from the top of above-mentioned upper front panel;
Bottom and the above-mentioned upper front panel of this air regulator shroud upper panel are separated, and the air bellow be formed between the two is formed as open cross sectional shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012020503A JP5853732B2 (en) | 2012-02-02 | 2012-02-02 | Body front structure |
| JP2012-020503 | 2012-02-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103241292A CN103241292A (en) | 2013-08-14 |
| CN103241292B true CN103241292B (en) | 2015-10-14 |
Family
ID=48921242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310040902.3A Expired - Fee Related CN103241292B (en) | 2012-02-02 | 2013-02-01 | Vehicle body front structure |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5853732B2 (en) |
| CN (1) | CN103241292B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018016101A (en) * | 2016-07-25 | 2018-02-01 | マツダ株式会社 | Front part vehicle body structure of vehicle |
| KR102440606B1 (en) * | 2017-12-15 | 2022-09-05 | 현대자동차 주식회사 | Front vehicle body reinforcing structure |
| JP7095476B2 (en) * | 2018-08-07 | 2022-07-05 | トヨタ自動車株式会社 | Vehicle front structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1903634A (en) * | 2005-07-25 | 2007-01-31 | 马自达汽车株式会社 | Front body structure of vehicle |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1045034A (en) * | 1996-08-05 | 1998-02-17 | Toyota Motor Corp | Front structure of car body |
| KR20060064915A (en) * | 2004-12-09 | 2006-06-14 | 현대자동차주식회사 | Cowl and dash panel combination means of automobile |
| JP2010095179A (en) * | 2008-10-17 | 2010-04-30 | Toyota Motor Corp | Noise-shutting off structure for front part of vehicle |
| KR20110000431A (en) * | 2009-06-26 | 2011-01-03 | 현대제철 주식회사 | Dash panel of a car |
| JP5321334B2 (en) * | 2009-08-06 | 2013-10-23 | マツダ株式会社 | Vehicle cowl structure |
| US8702148B2 (en) * | 2010-06-10 | 2014-04-22 | Honda Motor Co., Ltd. | Structure for front section of vehicle body |
| JP5001409B2 (en) * | 2010-07-02 | 2012-08-15 | 本田技研工業株式会社 | Body front structure |
-
2012
- 2012-02-02 JP JP2012020503A patent/JP5853732B2/en not_active Expired - Fee Related
-
2013
- 2013-02-01 CN CN201310040902.3A patent/CN103241292B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1903634A (en) * | 2005-07-25 | 2007-01-31 | 马自达汽车株式会社 | Front body structure of vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5853732B2 (en) | 2016-02-09 |
| JP2013159156A (en) | 2013-08-19 |
| CN103241292A (en) | 2013-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5352682B2 (en) | Body floor structure | |
| JP4853101B2 (en) | Front body structure of automobile | |
| CN102381360B (en) | Steering support member structure | |
| JP4486996B2 (en) | Body structure | |
| CN103183060B (en) | Car body fore part arrangement | |
| JP4935363B2 (en) | Front body structure of automobile | |
| JP6229676B2 (en) | Upper body structure of the vehicle | |
| JP7447980B2 (en) | Underbody structure | |
| JP5156729B2 (en) | Subframe structure | |
| CN103241292B (en) | Vehicle body front structure | |
| JP6079708B2 (en) | Front body structure of the vehicle | |
| JP5321334B2 (en) | Vehicle cowl structure | |
| JP2017144946A (en) | Vehicle body structure | |
| JP2016196203A (en) | Vehicular rear part structure | |
| CN105143021A (en) | Opening structure of vehicle body rear part | |
| JP5076718B2 (en) | Front body structure of automobile | |
| JP6229675B2 (en) | Upper body structure of the vehicle | |
| JP7172768B2 (en) | vehicle rear structure | |
| JP2010083182A (en) | Car body front structure | |
| JP5412545B2 (en) | Vehicle cowl structure | |
| JP5741420B2 (en) | Vehicle back door structure | |
| JP2002154461A (en) | Rear part structure of automobile | |
| JP5577934B2 (en) | Front window support structure | |
| JP2008239129A (en) | Vehicle body structure for automobile | |
| JP6237670B2 (en) | Upper body structure of the vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20210201 |