CN204309894U - A kind of automobile rear longitudinal girder and automobile - Google Patents
A kind of automobile rear longitudinal girder and automobile Download PDFInfo
- Publication number
- CN204309894U CN204309894U CN201420748565.3U CN201420748565U CN204309894U CN 204309894 U CN204309894 U CN 204309894U CN 201420748565 U CN201420748565 U CN 201420748565U CN 204309894 U CN204309894 U CN 204309894U
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- beam body
- automobile
- brace panel
- back segment
- leading portion
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Abstract
The utility model discloses a kind of automobile rear longitudinal girder and automobile.Described automobile rear longitudinal girder comprises beam body and brace panel; described beam body comprises beam body leading portion and beam body back segment; described beam body leading portion is fixed on the fuel tank protection zone of automobile; described beam body back segment is connected with the rear floor of automobile; described brace panel comprises brace panel leading portion and brace panel back segment; described brace panel leading portion is connected along the setting direction of described beam body leading portion with described beam body leading portion; described brace panel back segment is connected along the setting direction of described beam body back segment with described beam body back segment, and described beam body back segment is provided with beam body parting.Described automobile is provided with automobile rear longitudinal girder as above.Automobile rear longitudinal girder provided by the utility model and automobile can ensure the safety of fuel tank protection zone, can ensure again the energy-absorbing effect in collision process, effectively can also alleviate the weight of car load, improve the economy of fuel oil.
Description
Technical field
The utility model relates to a kind of automobile rear longitudinal girder and automobile.
Background technology
Automobile rear longitudinal girder is the vitals in vehicle structure, has very large effect to promoting the collision performance of automobile, rigidity property and fatigue endurance performance.
Fig. 1 is the constructional drawing of a kind of automobile rear longitudinal girder of prior art.As shown in Figure 1, traditional automobile rear longitudinal girder comprises beam body 10 ', brace panel 20 ' and reinforced support 30 '.Described beam body 10 ' generally directly welds with the rear floor of automobile, and extend to the fuel tank position of automobile, described brace panel 20 ' is arranged along the setting direction of described beam body 10 ', and is connected with described beam body 10 ' by described reinforced support 30 ', usually adopts the mode of welding to realize.According to the requirement of auto against performance, the part beam body (leading portion) extending to fuel tank position needs stronger rigidity, deformation can not occur to protect fuel tank position; And the part beam body be welded on rear floor generally needs more weak rigidity, thus suitable deformation can be there is in collision process, to absorb the energy produced in collision process.
At present, the beam body of traditional automobile rear longitudinal girder is realized by an integrally formed blanked part, on beam body, the rigidity at each position is certain, want to make the leading portion of beam body possess stronger rigidity, the integral thickness of crossbeam body must be added, not only cannot ensure the demand of the collision performance of the back segment of beam body, and overweight beam knows from experience the economy affecting fuel oil.
Utility model content
In view of this, the utility model provides one can either meet rigidity property and collision performance, can improve again automobile rear longitudinal girder and the automobile of the economy of fuel oil, is intended to solve the deficiencies in the prior art.
Automobile rear longitudinal girder provided by the utility model comprises beam body and brace panel; described beam body comprises beam body leading portion and beam body back segment; described beam body leading portion is fixed on the fuel tank protection zone of automobile; described beam body back segment is connected with the rear floor of automobile; described brace panel comprises brace panel leading portion and brace panel back segment; described brace panel leading portion is connected along the setting direction of described beam body leading portion with described beam body leading portion; described brace panel back segment is connected along the setting direction of described beam body back segment with described beam body back segment, and described beam body back segment is provided with beam body parting.
Preferably, described brace panel back segment is provided with brace panel parting.
Preferably, described beam body parting aligns with described brace panel parting.
Preferably, described beam body parting and described brace panel parting are all arranged along the length direction perpendicular to vehicle body.
Preferably, described beam body is connected by one or more reinforced support with described brace panel.
Preferably, described automobile rear longitudinal girder also comprises cover plate, and described cover plate is connected on one or more described reinforced support along the setting direction of described beam body, and is connected with described beam body and described brace panel.
Preferably, described cover plate is connected by structural adhesion with described reinforced support.
Preferably, the thickness of described beam body back segment is less than the thickness of described beam body leading portion.
Preferably, the thickness of described brace panel back segment is less than the thickness of described brace panel leading portion.
Automobile provided by the utility model is provided with any one automobile rear longitudinal girder as above.
Adopt automobile rear longitudinal girder of the present utility model and automobile, by arranging beam body parting on described beam body back segment, when automobile collides, described beam body parting can make described beam body back segment produce larger deformation quantity, can increase the absorption of the energy that described beam body produces for collision.Meanwhile, described beam body leading portion ensure that good rigidity property, effectively ensure that fuel tank protection zone, when colliding, larger deformation quantity can not occur, protecting the safety of fuel tank protection zone.In addition, described beam body leading portion and described beam body back segment can arrange different thickness as required, make the thickness of described beam body back segment less, thus alleviate the weight of car load.Therefore, automobile rear longitudinal girder provided by the utility model and automobile can ensure the safety of fuel tank protection zone, can ensure again the energy-absorbing effect in collision process, effectively can also alleviate the weight of car load, improve the economy of fuel oil.
Accompanying drawing explanation
Preferred embodiment in the utility model will be described in detail by accompanying drawing below, will contribute to understanding the purpose of this utility model and advantage, wherein:
Fig. 1 is the constructional drawing of a kind of automobile rear longitudinal girder of the prior art;
Fig. 2 is the constructional drawing of the preferred embodiment of automobile rear longitudinal girder of the present utility model;
Fig. 3 is the installation site schematic diagram of the beam body shown in Fig. 2 on automobile;
Fig. 4 is the detail view of a-quadrant in Fig. 2;
Fig. 5 is the detail view in B region in Fig. 2.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in detail.The identical Reference numeral of wherein identical parts represents.It should be noted that, the word "front", "rear" of use is described below, "left", "right", "up" and "down" refer to direction in accompanying drawing, word " interior " and " outward " refer to the direction towards or away from particular elements geometric centre respectively.
Fig. 2 is the constructional drawing of the preferred embodiment of automobile rear longitudinal girder of the present utility model; Fig. 3 is the installation site schematic diagram of the beam body 10 shown in Fig. 2 on automobile.Shown in composition graphs 2 and Fig. 3, in a preferred embodiment, described automobile rear longitudinal girder comprises beam body 10 and brace panel 20.
Described beam body 10 comprises beam body leading portion 11 and beam body back segment 12, and described beam body leading portion 11 is fixed on the fuel tank protection zone 90 of automobile, and described beam body back segment 12 is connected with the rear floor (not shown) of automobile.The fuel tank protection zone 90 of automobile refers to the region of the parts such as fuel tank, fuel filler pipe arranged on automobile, and for security consideration, the fuel tank protection zone 90 of automobile should be avoided deformation occurs as far as possible.Described beam body leading portion 11 can realize implementing sufficient protection to fuel tank protection zone 90, and particularly, described beam body leading portion 11 because having higher rigidity, thus can prevent fuel tank protection zone 90 from deformation occurring in collision process.Preferably, described beam body 10 can be arranged along the length direction of vehicle body, and described beam body 10 can adopt laser assembly solder plate to be stamped to form.
Described brace panel 20 comprises brace panel leading portion 21 and brace panel back segment 22, described brace panel leading portion 21 is connected along the setting direction of described beam body leading portion 11 with described beam body leading portion 11, and described brace panel back segment 22 is connected along the setting direction of described beam body back segment 12 with described beam body back segment 12.Described brace panel 20 can be formed by laser assembly solder plate punching press.Described brace panel 20 is for improving the integral rigidity of automobile rear longitudinal girder.Preferably, described brace panel leading portion 21 can both be connected with described beam body leading portion 11, also can be fixed on fuel tank protection zone 90 simultaneously; Described brace panel back segment 22 can both be connected with described beam body back segment 12, also can be fixedly connected on the rear floor of automobile simultaneously.
Fig. 4 is the detail view of a-quadrant in Fig. 2; Fig. 5 is the detail view in B region in Fig. 2.Shown in composition graphs 2, Fig. 3, Fig. 4 and Fig. 5, described beam body back segment 12 is provided with beam body parting 13, described beam body parting 13 is for absorbing energy when automobile collides.Particularly, when automobile collides, described beam body parting 13 can make beam body back segment 12 that larger deformation occurs, thus absorbs the energy produced in collision process, to meet the requirement of automobile rear for collision performance.Meanwhile, described beam body leading portion 11 also keeps original rigidity, can prevent fuel tank protection zone 90 from larger deformation occurring, and plays the effect of protection fuel tank protection zone 90.Preferably, brace panel parting 23 can also be provided with on described brace panel back segment 22, the effect of described brace panel parting 23 and the effect of described beam body 10 similar, repeat no more here.Preferably, described beam body parting 13 aligns with described brace panel parting 23.More preferably, described beam body parting 13 is all arranged along the length direction perpendicular to vehicle body with described brace panel parting 23.This structure can make described beam body back segment 12 and described brace panel back segment 22 produce larger deformation, improves energy-absorbing effect.
As shown in Figure 2, preferably, described beam body 10 is connected by one or more reinforced support 30 with described brace panel 20.In a particular embodiment, multiple described reinforced support 30 can be separately positioned on before subframe after attachment point, spring perch attachment point and subframe the positions such as attachment point, to improve overall coupling stiffness.
As shown in Figure 2, preferably, described automobile rear longitudinal girder also comprises cover plate 40, and described cover plate 40 is connected on one or more described reinforced support 30 along the setting direction of described beam body 10, and is connected with described beam body 10 and described brace panel 20.In order to meet the demand of collision performance and rigidity property simultaneously, described cover plate 40 is comparatively large at the thickness of the part be connected with described beam body leading portion 11, and the thickness of the part be connected with described beam body back segment 12 is less.Preferably, described cover plate 40 is connected by structural adhesion with described reinforced support 30, compares the connection mode of spot welding, is connected and joint face can be made to increase, thus improve overall rigidity by structural adhesion.
As a kind of preferred embodiment, the thickness of described beam body back segment 12 is less than the thickness of described beam body leading portion 11; The thickness of described brace panel back segment 22 is less than the thickness of described brace panel leading portion 21.Such as: described beam body 10 can adopt laser assembly solder plate to be stamped to form, take performance and weight into consideration, optimize computational analysis and analysis of Production Technology by CAE, determine that the thickness of described beam body leading portion 11 is 1.8mm, and the thickness of described beam body back segment 12 is 1.5mm.Described beam body parting 13 is 1415mm to the distance of the end of described beam body leading portion 11, and the distance to the end of described beam body back segment 12 is 315mm, and this structure had both met rigidity of the vehicle performance and rear collision performance requirement, can well reduce weight again.
Simultaneously, described brace panel 20 also can adopt laser assembly solder plate to be stamped to form, and be welded to connect with described beam body 10, take performance and weight into consideration, computational analysis and analysis of Production Technology is optimized by CAE, determine that the thickness of described brace panel leading portion 21 is 1.8mm, and the thickness of described brace panel back segment 22 is 1.5mm.Described brace panel parting 23 is 825mm to the distance of the end of described brace panel leading portion 21, and the distance to the end of described brace panel back segment 22 is 300mm.This structure had both met rigidity of the vehicle performance and rear collision performance requirement, can well reduce weight again.
The utility model additionally provides a kind of automobile, and described automobile is provided with any one automobile rear longitudinal girder as above.
Adopt automobile rear longitudinal girder of the present utility model and automobile, by arranging beam body parting 13 on described beam body back segment 12, when automobile collides, described beam body parting 13 can make described beam body back segment 12 produce larger deformation quantity, can increase the absorption of the energy that described beam body 10 produces for collision.Meanwhile, described beam body leading portion 11 ensure that good rigidity property, effectively ensure that fuel tank protection zone 90, when colliding, larger deformation quantity can not occur, protecting the safety of fuel tank protection zone 90.In addition, described beam body leading portion 11 and described beam body back segment 12 can arrange different thickness as required, make the thickness of described beam body back segment 12 less, thus alleviate the weight of car load.Therefore, automobile rear longitudinal girder provided by the utility model and automobile can ensure the safety of fuel tank protection zone 90, can ensure again the energy-absorbing effect in collision process, effectively can also alleviate the weight of car load, improve the economy of fuel oil.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (10)
1. an automobile rear longitudinal girder; comprise beam body and brace panel; described beam body comprises beam body leading portion and beam body back segment; described beam body leading portion is fixed on the fuel tank protection zone of automobile; described beam body back segment is connected with the rear floor of automobile; described brace panel comprises brace panel leading portion and brace panel back segment; described brace panel leading portion is connected along the setting direction of described beam body leading portion with described beam body leading portion; described brace panel back segment is connected along the setting direction of described beam body back segment with described beam body back segment; it is characterized in that, described beam body back segment is provided with beam body parting.
2. automobile rear longitudinal girder according to claim 1, is characterized in that, described brace panel back segment is provided with brace panel parting.
3. automobile rear longitudinal girder according to claim 2, is characterized in that, described beam body parting aligns with described brace panel parting.
4. automobile rear longitudinal girder according to claim 2, is characterized in that, described beam body parting and described brace panel parting are all arranged along the length direction perpendicular to vehicle body.
5. automobile rear longitudinal girder according to claim 1, is characterized in that, described beam body is connected by one or more reinforced support with described brace panel.
6. automobile rear longitudinal girder according to claim 5, is characterized in that, described automobile rear longitudinal girder also comprises cover plate, and described cover plate is connected on one or more described reinforced support along the setting direction of described beam body, and is connected with described beam body and described brace panel.
7. automobile rear longitudinal girder according to claim 6, is characterized in that, described cover plate is connected by structural adhesion with described reinforced support.
8. automobile rear longitudinal girder according to claim 1, is characterized in that, the thickness of described beam body back segment is less than the thickness of described beam body leading portion.
9. automobile rear longitudinal girder according to claim 1, is characterized in that, the thickness of described brace panel back segment is less than the thickness of described brace panel leading portion.
10. an automobile, is characterized in that, described automobile is provided with as the automobile rear longitudinal girder in claim 1-9 as described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420748565.3U CN204309894U (en) | 2014-12-02 | 2014-12-02 | A kind of automobile rear longitudinal girder and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420748565.3U CN204309894U (en) | 2014-12-02 | 2014-12-02 | A kind of automobile rear longitudinal girder and automobile |
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| Publication Number | Publication Date |
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| CN204309894U true CN204309894U (en) | 2015-05-06 |
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| CN201420748565.3U Active CN204309894U (en) | 2014-12-02 | 2014-12-02 | A kind of automobile rear longitudinal girder and automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106184375A (en) * | 2016-08-18 | 2016-12-07 | 北京航天发射技术研究所 | Lightweight big load-bearing functionality tail boom |
| CN109204528A (en) * | 2017-06-30 | 2019-01-15 | 比亚迪股份有限公司 | Vehicle and its body structure |
-
2014
- 2014-12-02 CN CN201420748565.3U patent/CN204309894U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106184375A (en) * | 2016-08-18 | 2016-12-07 | 北京航天发射技术研究所 | Lightweight big load-bearing functionality tail boom |
| CN109204528A (en) * | 2017-06-30 | 2019-01-15 | 比亚迪股份有限公司 | Vehicle and its body structure |
| CN109204528B (en) * | 2017-06-30 | 2021-05-14 | 比亚迪股份有限公司 | Vehicle and body structure thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |