CN203318515U - Automobile auxiliary subframe and automobile - Google Patents
Automobile auxiliary subframe and automobile Download PDFInfo
- Publication number
- CN203318515U CN203318515U CN2013203290609U CN201320329060U CN203318515U CN 203318515 U CN203318515 U CN 203318515U CN 2013203290609 U CN2013203290609 U CN 2013203290609U CN 201320329060 U CN201320329060 U CN 201320329060U CN 203318515 U CN203318515 U CN 203318515U
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- automobile
- girder
- section
- subframe
- upper semi
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Abstract
The utility model provides an automobile auxiliary subframe and an automobile. The automobile auxiliary subframe comprises a body, at least one pair of upward extending arms and at least one pair of downward extending legs, wherein the upward extending arms are symmetrically arranged at both sides of the front part of the body, and upwards protrude on the surface of the body, so that the upward extending arms are connected with a vertical structure of the body; each upward extending arm is of a long and thin airtight cavity structure or a local cross-section tapering structure; the downward extending legs are symmetrically arranged at both sides of the rear part of the body, so that the downward extending legs are connected with the vertical structure of the body; each downward extending leg is of the long and thin airtight cavity structure or the local cross-section tapering structure. According to the automobile auxiliary subframe and the automobile provided by the utility model, as the upward extending arms and the downward extending legs which are weakened in stiffness are adopted by the automobile auxiliary subframe, when collision occurs, the upward extending arms and the downward extending legs can wrinkle and deform, and part of collision energy is absorbed, and therefore, the inbreak quantity to a front wall and a floor is reduced, the energy absorption efficiency is improved, and moreover, the accelerated speed of the body collision is reduced.
Description
Technical field
The utility model relates to the automotive safety technical field, relates in particular to the auxiliary subframe of a kind of automobile and automobile.
Background technology
Present many vehicles all are equipped with the auxiliary subframe of high rigidity, it couples together suspension system and car body, having improved vehicle performance stablizes and smooth-going performance, head-on crash occurs during, after being deformed to a certain degree, should separate fully with it by auxiliary subframe car body, and by the slope guiding of design, be pulled to the crew module below.But the auxiliary subframe of aforementioned high rigidity has also stoped the collision deformation energy-absorbing, has strengthened the intrusion amount to front wall and floor, has improved the car body collision acceleration/accel, and then very easily the passenger has been damaged simultaneously.In addition, this auxiliary subframe can separate in collision process, and key is that can the shear screw attaching parts rupture, and therefore separates and also exists risk.
The utility model content
Technical problem to be solved in the utility model is, a kind of raising collision energy-absorbing efficiency is provided, and reduces the intrusion amount to front wall and floor, reduces the auxiliary subframe of automobile and the automobile of car body collision acceleration/accel.
In order to solve the problems of the technologies described above, the utility model provides a kind of automobile to assist subframe, comprising: body;
Semi-girder at least one pair of, it is symmetricly set on described body portion both sides, and projects upwards in described body surface to be connected with the car body longitudinal construction, and described upper semi-girder is that elongated airtight cavity structure or partial cross section dwindle structure; And
At least one pair of downward leg, it is symmetricly set on described rear body both sides, and to be connected with described car body longitudinal construction, described downward leg is that elongated airtight cavity structure or partial cross section dwindle structure.
Wherein, the ratio that the elongated airtight cavity structure of described upper semi-girder refers to its length and its section width at 7:1 between 12:1.
Wherein, the partial cross section of described upper semi-girder dwindles structure and refers to that described upper semi-girder has the section that dwindles that a section width is less than described upper semi-girder remainder, describedly dwindles the middle part that section is arranged on described upper semi-girder.
Wherein, the ratio that the elongated airtight cavity structure of described downward leg refers to its length and its section width at 7:1 between 12:1.
Wherein, the partial cross section of described downward leg dwindles structure and refers to that described downward leg has the section that dwindles that a section width is less than described downward leg remainder, and the described section that dwindles is arranged on described downward midleg.
Wherein, the rigidity of described upper semi-girder and downward leg all is less than the rigidity of described body.
The utility model also provides a kind of automobile, comprises that described automobile assists subframe.
Wherein, the rigidity of the upper semi-girder of the auxiliary subframe of described automobile and downward leg all is less than the rigidity of described car body longitudinal construction.
Wherein, the auxiliary subframe of described automobile both sides connect front wheel suspension system by the suspension lower swing arm respectively, and the auxiliary subframe of described automobile front portion connects dynamic assembly by rubber bush.
Wherein, described car body longitudinal construction is Z-shaped by cross directional stretch, comprise the epimere and the hypomere that are parallel to each other, and the bevel phase that connects end and the hypomere head end of described epimere, described upper semi-girder is bolted on attaching parts, described attaching parts is fixedly mounted on described epimere and bevel phase joint, and the thickness of described downward leg is slightly less than the thickness of described body, is bolted the hypomere bottom surface of described car body longitudinal construction.
The auxiliary subframe of automobile provided by the utility model and automobile, the upper semi-girder and the downward leg that have adopted rigidity to be weakened due to the auxiliary subframe of this automobile, make when collision occurs, Folding Deformation can occur in upper semi-girder and downward leg, sponge a part of collision energy, thereby reduced the intrusion amount to front wall and floor, improved energy-absorbing efficiency, and reduced the acceleration/accel of car body collision.
The accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the birds-eye view of the auxiliary subframe of the utility model embodiment automobile and the assembling of car body longitudinal construction.
Fig. 2 is the left view of the auxiliary subframe of the utility model embodiment automobile and the assembling of car body longitudinal construction.
Fig. 3 is the front elevation of the auxiliary subframe of the utility model embodiment automobile and the assembling of car body longitudinal construction.
Fig. 4 is the block diagram of the auxiliary subframe of the utility model embodiment automobile and the assembling of car body longitudinal construction.
Fig. 5 is the upper semi-girder structural representation of the auxiliary subframe of the utility model embodiment automobile.
Fig. 6 is the downward leg structural representation of the auxiliary subframe of the utility model embodiment automobile.
The specific embodiment
Below with reference to accompanying drawing, preferred embodiment of the present utility model is described.
Shown in Fig. 1-4, the utility model embodiment provides a kind of automobile to assist subframe, comprises body 1, rigidity weakened at least one pair of on semi-girder 2, it is symmetricly set on body 1 front part sides, and projects upwards in body 1 surface to be connected with car body longitudinal construction 4; And at least one pair of downward leg 3 of being weakened of rigidity, it is symmetricly set on body 1 both sides, rear portion, to be connected with car body longitudinal construction 4.
In the present embodiment, the reduction of upper semi-girder 2 and downward leg 3 rigidity refers to that, with respect to body 1, car body longitudinal construction 4 or attaching parts 5, the rigidity of upper semi-girder 2 and downward leg 3 is less, and it is by following structure, to realize respectively, wherein:
(1) as shown in Figure 5, upper semi-girder 2 is elongated airtight cavity structure, and cross section is less and length is longer, the ratio of its length and its section width at 7:1 between 12:1.In the present embodiment, the cross section of upper semi-girder 2 is preferably 30mm X30mm.
(2) as shown in Figure 6, downward leg 3, for partial cross section dwindles structure, has the section that dwindles 30 that a section width is less than described downward leg remainder.This dwindles the middle part that section 30 preferably is arranged on downward leg 3, so that manufacture.
Should be noted that, for realizing that rigidity weakens, (1) that above-mentioned upper semi-girder 2 and downward leg 3 adopt respectively, (2) two kinds of structures can combination in any, going up semi-girder 2 can make partial cross section and dwindle structure, and downward leg also can be elongated airtight cavity structure, the ratio of its length and its section width at 7:1 between 12:1; Can also go up semi-girder 2 and all make partial cross section with downward leg 3 and dwindle structure, or be elongated airtight cavity structure, the ratio of its length and its section width at 7:1 between 12:1.
Due to car body longitudinal construction 4 and attaching parts 5 rigidity larger, be the main power transmission passage of impact force, when collision occurs, the front end of car body longitudinal construction 4 will be out of shape energy-absorbing.Impact force passes to auxiliary subframe, and the rigidity of the body 1 of auxiliary subframe is larger, but the structure that upper semi-girder 2 and downward leg 3 have adopted above-mentioned rigidity to be weakened, rigidity is less than the rigidity of body 1, car body longitudinal construction 4 and the attaching parts 5 of auxiliary subframe, huge power will cause upper semi-girder 2 and downward leg 3 Folding Deformations, auxiliary subframe will be along car body longitudinal construction 4 direction folds, sponge a part of collision energy, thereby reduced the intrusion amount to front wall and floor, improve energy-absorbing efficiency, and reduced the acceleration/accel of car body collision.Even collide too fierce, cause the bolt of the bolt of semi-girder 2 and attaching parts 5 junctions and downward leg 3 and car body longitudinal construction 4 junctions all because of stressed excessive fracture, owing to going up before this abundant Folding Deformation of semi-girder 2 and downward leg 3, enough collision energies have been absorbed, therefore the auxiliary subframe that does not affect the present embodiment realizes reducing the intrusion amount to front wall and floor, improve energy-absorbing efficiency, and reduce the effect of the acceleration/accel of car body collision.
In addition, the auxiliary subframe of the utility model embodiment is positioned at the automobile power assembly rear, its side is connecting front wheel suspension system by the suspension lower swing arm, its front connects dynamic assembly by rubber bush, therefore, if in collision, the front end of car body longitudinal construction 4 continues distortion, move after causing dynamic assembly and suspension system, and the auxiliary subframe of the present embodiment will stop the trend of moving after dynamic assembly and suspension system.
The utility model also provides a kind of automobile, and it has the auxiliary subframe of aforesaid automobile, and formation, structure and the principle etc. of the auxiliary subframe of this automobile repeat no more herein.The auxiliary subframe of this automobile is positioned at the dynamic assembly rear, and both sides connect front wheel suspension system by the suspension lower swing arm respectively, and front portion connects dynamic assembly by rubber bush.Car body longitudinal construction 4 is Z-shaped by cross directional stretch, comprises the epimere 41 and the hypomere 42 that are parallel to each other, and connects the end of epimere 41 and the bevel phase 40 of hypomere 42 head ends.Upper semi-girder 2 is bolted on attaching parts 5.Attaching parts 5 is fixedly mounted on epimere 41 and bevel phase 40 joints.The thickness of downward leg 3 is slightly less than the thickness of body 1, is bolted hypomere 42 bottom surfaces of car body longitudinal construction 4.
As from the foregoing, the auxiliary subframe of the automobile that the utility model provides and automobile, the upper semi-girder and the downward leg that have adopted rigidity to be weakened due to the auxiliary subframe of this automobile, make when collision occurs, Folding Deformation can occur in upper semi-girder and downward leg, sponges a part of collision energy, thereby has reduced the intrusion amount to front wall and floor, improve energy-absorbing efficiency, and reduced the acceleration/accel of car body collision.
Above disclosed is only the utility model preferred embodiment, certainly can not limit with this interest field of the utility model, and the equivalent variations of therefore doing according to the utility model claim, still belong to the scope that the utility model is contained.
Claims (10)
1. the auxiliary subframe of automobile, is characterized in that, comprising:
Body;
Semi-girder at least one pair of, it is symmetricly set on described body portion both sides, and projects upwards in described body surface to be connected with the car body longitudinal construction, and described upper semi-girder is that elongated airtight cavity structure or partial cross section dwindle structure; And
At least one pair of downward leg, it is symmetricly set on described rear body both sides, and to be connected with described car body longitudinal construction, described downward leg is that elongated airtight cavity structure or partial cross section dwindle structure.
2. the auxiliary subframe of automobile according to claim 1, is characterized in that, the ratio that the elongated airtight cavity structure of described upper semi-girder refers to its length and its section width at 7:1 between 12:1.
3. automobile according to claim 1 is assisted subframe, it is characterized in that, the partial cross section of described upper semi-girder dwindles structure and refers to that described upper semi-girder has the section that dwindles that a section width is less than described upper semi-girder remainder, describedly dwindles the middle part that section is arranged on described upper semi-girder.
4. the auxiliary subframe of automobile according to claim 1, is characterized in that, the ratio that the elongated airtight cavity structure of described downward leg refers to its length and its section width at 7:1 between 12:1.
5. automobile according to claim 1 is assisted subframe, it is characterized in that, the partial cross section of described downward leg dwindles structure and refers to that described downward leg has the section that dwindles that a section width is less than described downward leg remainder, and the described section that dwindles is arranged on described downward midleg.
6. the auxiliary subframe of automobile according to claim 1, is characterized in that, the rigidity of described upper semi-girder and downward leg all is less than the rigidity of described body.
7. an automobile, is characterized in that, comprises subframe as auxiliary as the described automobile of claim 1-6 any one.
8. automobile according to claim 7, is characterized in that, the upper semi-girder of the auxiliary subframe of described automobile and the rigidity of downward leg all are less than the rigidity of described car body longitudinal construction.
9. automobile according to claim 8, is characterized in that, the auxiliary subframe of described automobile both sides connect front wheel suspension system by the suspension lower swing arm respectively, and the auxiliary subframe of described automobile front portion connects dynamic assembly by rubber bush.
10. automobile according to claim 7, it is characterized in that, described car body longitudinal construction is Z-shaped by cross directional stretch, comprise the epimere and the hypomere that are parallel to each other, and the bevel phase that connects end and the hypomere head end of described epimere, described upper semi-girder is bolted on attaching parts, and described attaching parts is fixedly mounted on described epimere and bevel phase joint, the thickness of described downward leg is slightly less than the thickness of described body, is bolted the hypomere bottom surface of described car body longitudinal construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203290609U CN203318515U (en) | 2013-06-08 | 2013-06-08 | Automobile auxiliary subframe and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203290609U CN203318515U (en) | 2013-06-08 | 2013-06-08 | Automobile auxiliary subframe and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203318515U true CN203318515U (en) | 2013-12-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203290609U Expired - Lifetime CN203318515U (en) | 2013-06-08 | 2013-06-08 | Automobile auxiliary subframe and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203318515U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105143020A (en) * | 2013-12-13 | 2015-12-09 | 株式会社F.泰克 | Subframe for vehicle |
| CN110155176A (en) * | 2019-06-28 | 2019-08-23 | 长城汽车股份有限公司 | Body frame structure for automotive |
-
2013
- 2013-06-08 CN CN2013203290609U patent/CN203318515U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105143020A (en) * | 2013-12-13 | 2015-12-09 | 株式会社F.泰克 | Subframe for vehicle |
| CN105143020B (en) * | 2013-12-13 | 2017-06-27 | 株式会社 F.泰克 | Subframe for vehicle |
| CN110155176A (en) * | 2019-06-28 | 2019-08-23 | 长城汽车股份有限公司 | Body frame structure for automotive |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
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| CX01 | Expiry of patent term |