CN111791820A - Electric automobile front bumper middle part support and car - Google Patents
Electric automobile front bumper middle part support and car Download PDFInfo
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- CN111791820A CN111791820A CN202010449948.0A CN202010449948A CN111791820A CN 111791820 A CN111791820 A CN 111791820A CN 202010449948 A CN202010449948 A CN 202010449948A CN 111791820 A CN111791820 A CN 111791820A
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- front bumper
- electric automobile
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- bracket
- support body
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- 238000009434 installation Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a middle support of a front bumper of an electric automobile and the electric automobile, wherein the middle support of the front bumper of the electric automobile comprises a support body, the left end and the right end of the support body are respectively provided with a main positioning pin and an auxiliary positioning pin, the main positioning pin is used for controlling X, Y direction freedom degree, the auxiliary positioning pin is used for controlling X direction freedom degree, and the Y direction of the auxiliary positioning pin is released; the middle of support body is equipped with the mounting pin, the below of support body is equipped with a plurality of bolt installed part, main locating pin assist the locating pin mounting pin and every the bolt installed part all is equipped with a bolt mounting hole, the bolt mounting hole is used for being connected with the front end module through the bolt, every the bolt mounting hole is the Z to the fastening to control Z direction degree of freedom. The invention can solve the problem that the middle bracket is easy to turn in the Z direction during assembly to influence the assembly efficiency and the assembly stability in the prior art.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to a middle support of a front bumper of an electric automobile and the automobile.
Background
With the rapid development of the automobile industry, automobiles have become one of indispensable vehicles for people to go out. The automobile keeping quantity is increased year by year, more and more people own private cars, and the electric automobiles are the development direction of the automobile industry at present.
With the popularization of automobiles, the traffic safety problem becomes more serious. According to statistics, the collision problem between vehicles and pedestrians accounts for a higher proportion in traffic accidents, and the improvement of the protection of the vehicles to the pedestrians is urgent. As a passive safety device, an automobile bumper system plays a role in absorbing external energy, effectively protecting pedestrians, and the like in a collision accident.
In general, in an electric vehicle, a bumper is fixed to a vehicle body by a plastic center bracket. And current middle part support is when the assembly, Z appears easily and to the upset, influences assembly efficiency and assembly stability.
Disclosure of Invention
The invention aims to provide a middle support of a front bumper of an electric automobile, which aims to solve the problem that the middle support in the prior art is easy to turn over in the Z direction during assembly, so that the assembly efficiency and the assembly stability are affected.
A middle support of a front bumper of an electric automobile comprises a support body, wherein a main positioning pin and an auxiliary positioning pin are respectively arranged at the left end and the right end of the support body, the main positioning pin is used for controlling X, Y direction freedom degree, the auxiliary positioning pin is used for controlling X direction freedom degree, and the auxiliary positioning pin is released in the Y direction; the middle of support body is equipped with the mounting pin, the below of support body is equipped with a plurality of bolt installed part, main locating pin assist the locating pin mounting pin and every the bolt installed part all is equipped with a bolt mounting hole, the bolt mounting hole is used for being connected with the front end module through the bolt, every the bolt mounting hole is the Z to the fastening to control Z direction degree of freedom.
According to the middle support of the front bumper of the electric automobile, the main positioning pin is used for controlling X, Y direction freedom degree, the auxiliary positioning pin is used for controlling X direction freedom degree and Y direction releasing, and the self gravity of the part and the bolt fastening direction are along the Z direction, so that the structural design can avoid the risk of Z direction overturning in the assembling process, the assembling efficiency and the assembling stability are improved, in addition, the main positioning pin, the auxiliary positioning pin, the installing pin and each bolt installing piece are provided with the bolt installing holes, and the bolt installing holes are all fastened in the Z direction, so that the Z direction freedom degree is controlled, the assembling effect is ensured, and the assembling efficiency and the assembling stability are further improved.
In addition, the middle bracket of the front bumper of the electric automobile provided by the invention can also have the following additional technical characteristics:
furthermore, a plurality of S-shaped buffering ribs are arranged above the support body and used for being connected with a bumper.
Furthermore, a plurality of the S-shaped buffer ribs are arranged in parallel at equal intervals.
Further, both ends are equipped with a front bumper joint portion respectively about support body top, every all be equipped with an X in the front bumper joint portion to the joint mounting hole of seting up, the joint mounting hole be used for with the front bumper joint.
Further, the periphery of each bolt mounting hole all is equipped with rice style of calligraphy rib.
Furthermore, a vertical rib is arranged at the joint of the middle surface and the surface of the middle support of the front bumper of the electric automobile.
Further, a plurality of reserved tool positioning holes are formed in the middle of the support body.
Furthermore, a plurality of lightening holes are formed in the middle of the support body.
Further, the number of the bolt installation pieces is 4, and the 4 bolt installation pieces are uniformly arranged below the support body.
The invention also aims to provide an automobile adopting the middle bracket of the front bumper of the electric automobile.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of a middle bracket of a front bumper of an electric vehicle in a first embodiment of the invention at a first view angle;
FIG. 2 is an enlarged view of circle A of FIG. 1;
FIG. 3 is a schematic structural diagram of a middle bracket of an electric vehicle front bumper according to a first embodiment of the present invention at a second viewing angle;
fig. 4 is a schematic structural diagram of a middle bracket of a front bumper of an electric vehicle according to the first embodiment of the invention at a third view angle;
fig. 5 is an enlarged view of circle B in fig. 4.
FIG. 6 is a schematic diagram of a simulation of an automobile using the middle bracket of the front bumper of the electric automobile.
Detailed Description
In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element must be in a particular orientation, constructed or operated in a particular manner, and is not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 5, the middle bracket of an electric vehicle front bumper according to the first embodiment of the present invention includes a bracket body 10, wherein a main positioning pin 20 and an auxiliary positioning pin 30 are respectively disposed at left and right ends of the bracket body 10, the main positioning pin 20 is used for controlling X, Y directional freedom, the auxiliary positioning pin 30 is used for controlling X directional freedom, and the auxiliary positioning pin 30 is released in Y direction.
The middle of support body 10 is equipped with mounting pin 40, the below of support body 10 is equipped with a plurality of bolt installed part 50, main locating pin 20 assist locating pin 30 mounting pin 40 and every bolt installed part 50 all is equipped with a bolt mounting hole 60, bolt mounting hole 60 is used for being connected with the front end module through the bolt, every bolt mounting hole 60 is Z to the fastening to control Z direction degree of freedom.
Specifically, in the present embodiment, the number of the bolt installation members 50 is 4, and the 4 bolt installation members 50 are uniformly arranged below the bracket body 10. Thus, there are a total of 7 bolt mounting holes 60.
X, Y direction degree of freedom is controlled through the main locating pin 20, the auxiliary locating pin 30 controls the X direction degree of freedom, Y is to releasing, and because part self gravity all follows Z with bolt fastening direction, therefore, the Z that this structural design can avoid the assembly to exist is to the upset risk, promote assembly efficiency and stability, furthermore, the main locating pin 20, the auxiliary locating pin 30, the erection pin 40 and every bolt installation spare 50 all are equipped with a bolt mounting hole 60, bolt mounting hole 60 is the Z to the fastening, with control Z direction degree of freedom, ensure the assembly effect, further promote assembly efficiency and stability.
A plurality of S-shaped buffer ribs 80 are arranged above the bracket body 10, and the S-shaped buffer ribs 80 are used for being connected with the bumper 70.
Preferably, a plurality of the S-shaped cushion ribs 80 are arranged in parallel at equal intervals.
Through setting up S type buffering rib 80, can decompose the atress of car front bumper at low-speed collision in-process towards two directions to absorb more collision energy, can protect the pedestrian better, reduce the injury to the pedestrian.
In this embodiment, both ends are equipped with a front bumper joint portion 90 respectively about support body 10 top, every all be equipped with an X on the front bumper joint portion 90 to the joint mounting hole 91 of seting up, joint mounting hole 91 is used for with the front bumper joint. Through setting up the joint mounting hole 91 that sets up to X, guarantee before can further controlling Z to warp deformation, guarantee automobile front face outward appearance effect.
In this embodiment, each bolt mounting hole 60 is provided with a rib 61 shaped like a Chinese character mi at the periphery thereof. The junction of face and the middle part of electric automobile front bumper support is equipped with perpendicular muscle 11 to improve the intensity and the rigidity of support self. The traditional strengthening rib is many and along Z, X to installation fastening bolt, and the support installation back intensity is high, is unfavorable for bumper system design and satisfies the mandatory requirement of pedestrian's protection regulation. In the embodiment, the cross-shaped ribs 61 and the vertical ribs 11 are matched, so that the design of a bumper system can meet the mandatory requirement of a pedestrian protection rule on the premise of ensuring the strength of the reinforcing structure.
Preferably, a plurality of reserved tool positioning holes 12 are formed in the middle of the support body 10, so that subsequent component assembly delicate process lifting is facilitated.
The middle position of the support body 10 is provided with a plurality of lightening holes 13, so that the lightening is realized on the premise of ensuring the self rigidity of the support, meanwhile, the material is saved, and the cost of the support is reduced.
A second embodiment of the invention provides an electric vehicle that includes at least the electric vehicle front bumper middle bracket of the first embodiment.
Referring to fig. 6, the automobile using the front bumper middle bracket of the electric automobile is verified through a simulation model, in the analysis, the flexible leg portion calculates the right half area (towing hook area) of the automobile, and the other half is symmetrical by default, and since the front bumper middle bracket mainly affects the leg performance, only the scores at 3 of the areas L _0, L _1, and L _2 in fig. 6 are considered.
Table 1 shows the leg scores using a conventional center bracket of a front bumper.
TABLE 1
Table 2 shows the leg scores of the center bracket of the front bumper to which the present invention is applied.
TABLE 2
It can be clearly seen from the comparison results of table 1 and table 2 that the scores at 3 points L _0, L _1, and L _2 of the front bumper middle bracket of the present invention are significantly better than those of the conventional front bumper middle bracket, which indicates that the front bumper middle bracket of the present invention can effectively protect pedestrians through reasonable design (including hole digging, slotting, equidistant parallel buffer structures, etc.), and is favorable for achieving the five-star standard of C-NCAP (2018).
In addition, the strength of the middle bracket of the front bumper is analyzed by CAE.
The CAE analysis conditions were as follows:
and (3) constraint: and the freedom degree of all connecting points of the front bumper and the vehicle body is restrained to be 123456.
Loading: x is to 3 times the gravitational field; 3 times gravity field in Y direction; z-direction 5 times gravity field
Evaluation criteria: the maximum stress is less than the tensile strength of the material.
The test results are shown in Table 3.
TABLE 3
As can be seen from Table 3, the strength of the middle bracket of the front bumper can meet the use requirement, and the structural design is reasonable. Namely, the middle bracket of the front bumper can effectively protect pedestrians on the premise of stronger structural strength.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The middle support for the front bumper of the electric automobile comprises a support body and is characterized in that a main positioning pin and an auxiliary positioning pin are respectively arranged at the left end and the right end of the support body, the main positioning pin is used for controlling X, Y direction freedom degree, the auxiliary positioning pin is used for controlling X direction freedom degree, and the auxiliary positioning pin is released in the Y direction; the middle of support body is equipped with the mounting pin, the below of support body is equipped with a plurality of bolt installed part, main locating pin assist the locating pin mounting pin and every the bolt installed part all is equipped with a bolt mounting hole, the bolt mounting hole is used for being connected with the front end module through the bolt, every the bolt mounting hole is the Z to the fastening to control Z direction degree of freedom.
2. The middle support of the front bumper of the electric automobile according to claim 1, wherein a plurality of S-shaped buffer ribs are arranged above the support body and used for being connected with the bumper.
3. The middle support for the front bumper of the electric automobile according to claim 2, wherein a plurality of the S-shaped buffer ribs are arranged in parallel at equal intervals.
4. The middle bracket for the front bumper of the electric automobile according to claim 2, wherein a front bumper clamping portion is respectively arranged at the left end and the right end above the bracket body, each front bumper clamping portion is provided with a clamping mounting hole formed in the X direction, and the clamping mounting holes are used for being clamped with the front bumper.
5. The middle bracket for the front bumper of the electric automobile according to claim 1, wherein each bolt mounting hole is provided with a cross-shaped rib at the periphery.
6. The middle bracket of the electric automobile front bumper as claimed in claim 5, wherein a vertical rib is arranged at the joint of the middle surface and the surface of the middle bracket of the electric automobile front bumper.
7. The middle support for the front bumper of the electric automobile according to claim 1, wherein a plurality of reserved tooling positioning holes are formed in the middle of the support body.
8. The middle bracket for the front bumper of the electric automobile according to claim 1, wherein a plurality of lightening holes are formed in the middle of the bracket body.
9. The middle bracket for an electric vehicle front bumper according to claim 1, wherein the number of the bolt mounting members is 4, and 4 bolt mounting members are uniformly arranged below the bracket body.
10. An electric vehicle characterized by comprising the electric vehicle front bumper middle bracket according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010449948.0A CN111791820A (en) | 2020-05-25 | 2020-05-25 | Electric automobile front bumper middle part support and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010449948.0A CN111791820A (en) | 2020-05-25 | 2020-05-25 | Electric automobile front bumper middle part support and car |
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| Publication Number | Publication Date |
|---|---|
| CN111791820A true CN111791820A (en) | 2020-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010449948.0A Pending CN111791820A (en) | 2020-05-25 | 2020-05-25 | Electric automobile front bumper middle part support and car |
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| Country | Link |
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| CN (1) | CN111791820A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113370928A (en) * | 2021-06-30 | 2021-09-10 | 一汽奔腾轿车有限公司 | Middle support of automobile front bumper |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1780086A2 (en) * | 2005-10-28 | 2007-05-02 | Dr.Ing. h.c.F. Porsche Aktiengesellschaft | Device for the exact positioning and fastening of a bumper |
| DE102011117746A1 (en) * | 2011-11-05 | 2013-05-08 | Daimler Ag | Bumper device with a mounting aid |
| CN205498854U (en) * | 2016-03-09 | 2016-08-24 | 浙江吉利控股集团有限公司 | A installing support for front bumper |
| CN207311345U (en) * | 2017-10-23 | 2018-05-04 | 浙江众泰汽车制造有限公司 | The mounting structure of mounting bracket in the middle part of a kind of front bumper |
| CN207416765U (en) * | 2017-11-21 | 2018-05-29 | 东风彼欧汽车外饰系统有限公司 | A kind of front bumper assembling structure |
| CN208646789U (en) * | 2018-07-11 | 2019-03-26 | 苏州市振业模具有限公司 | A kind of high intensity bumper holder |
| CN210478619U (en) * | 2019-08-07 | 2020-05-08 | 北京长城华冠汽车科技股份有限公司 | Bumper bracket and vehicle with same |
| CN212637388U (en) * | 2020-05-25 | 2021-03-02 | 江铃汽车集团有限公司 | Electric automobile front bumper middle part support and car |
-
2020
- 2020-05-25 CN CN202010449948.0A patent/CN111791820A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1780086A2 (en) * | 2005-10-28 | 2007-05-02 | Dr.Ing. h.c.F. Porsche Aktiengesellschaft | Device for the exact positioning and fastening of a bumper |
| DE102011117746A1 (en) * | 2011-11-05 | 2013-05-08 | Daimler Ag | Bumper device with a mounting aid |
| CN205498854U (en) * | 2016-03-09 | 2016-08-24 | 浙江吉利控股集团有限公司 | A installing support for front bumper |
| CN207311345U (en) * | 2017-10-23 | 2018-05-04 | 浙江众泰汽车制造有限公司 | The mounting structure of mounting bracket in the middle part of a kind of front bumper |
| CN207416765U (en) * | 2017-11-21 | 2018-05-29 | 东风彼欧汽车外饰系统有限公司 | A kind of front bumper assembling structure |
| CN208646789U (en) * | 2018-07-11 | 2019-03-26 | 苏州市振业模具有限公司 | A kind of high intensity bumper holder |
| CN210478619U (en) * | 2019-08-07 | 2020-05-08 | 北京长城华冠汽车科技股份有限公司 | Bumper bracket and vehicle with same |
| CN212637388U (en) * | 2020-05-25 | 2021-03-02 | 江铃汽车集团有限公司 | Electric automobile front bumper middle part support and car |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113370928A (en) * | 2021-06-30 | 2021-09-10 | 一汽奔腾轿车有限公司 | Middle support of automobile front bumper |
| CN113370928B (en) * | 2021-06-30 | 2022-11-18 | 一汽奔腾轿车有限公司 | Middle support of automobile front bumper |
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