CN105172721A - Automotive front bumper - Google Patents
Automotive front bumper Download PDFInfo
- Publication number
- CN105172721A CN105172721A CN201510611978.6A CN201510611978A CN105172721A CN 105172721 A CN105172721 A CN 105172721A CN 201510611978 A CN201510611978 A CN 201510611978A CN 105172721 A CN105172721 A CN 105172721A
- Authority
- CN
- China
- Prior art keywords
- front bumper
- energy
- connecting panel
- bumper beam
- absorption box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
-
- 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
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
- B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type
-
- 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
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
- B60R2019/1833—Structural beams therefor, e.g. shock-absorbing made of plastic material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses an automotive front bumper, belonging to the field of automotive mechanical parts. The front bumper comprises a front bumper crossbeam and a crash box, wherein the crash box is mounted on the front bumper crossbeam. The front bumper further comprises a cohesive glue layer, and the cohesive glue layer is arranged between the front bumper crossbeam and the crash box. The front bumper crossbeam and the crash box are made of carbon fiber composites. The front bumper crossbeam and the crash box, made of the carbon fiber composites, are adopted, and the front bumper crossbeam and the crash box are connected together through the cohesive glue layer. As the strength of the front bumper crossbeam made of the carbon fiber composites is very high, a front bumper crossbeam reinforcement plate is not needed to be mounted on the front bumper crossbeam, and therefore the structure of the front bumper is simplified. Moreover, the crash box is also made of the carbon fiber composites, so that the crash box has a high ability to absorb energy. Thus, the length of the crash box does not need a too long design, and therefore the phenomenon that the longer crash box affects the stability of the front bumper is avoided.
Description
Technical field
The invention belongs to automobile mechanical field of components, particularly a kind of automobile front beam.
Background technology
Along with the development of auto-industry, people are also more and more higher to the requirement of vehicle safety performance, automobile front beam is a kind of for absorbing and slowing down foreign impacts power, the device of protection body forward structure safety, existing common front bumper generally includes the front bumper beam and energy-absorption box that link together, wherein, front bumper beam adopts metallic material to make through cold punching technology usually, due to the limitation of technique, cause the intensity of the front bumper beam made not high, in order to improve the intensity of front bumper beam, need on front bumper beam, install front bumper beam brace panel additional, otherwise front bumper beam very easily bending fracture in 40% offset collision, jeopardize the life security of passenger on car, so the weight of existing common front bumper is larger, structure is comparatively complicated.Further, more by colliding the energy produced in order to enable energy-absorption box absorb, usually can only longer by the Design of length of energy-absorption box, but longer energy-absorption box can affect to the stability of front bumper.
Summary of the invention
In order to solve the problem that existing front bumper arrangement is complicated, stability is not high, embodiments provide a kind of front bumper.Described technical scheme is as follows:
Embodiments provide a kind of front bumper, described front bumper comprises: front bumper beam and energy-absorption box, described energy-absorption box is arranged on described front bumper beam, described front bumper also comprises bonding glue-line, described bonding glue-line is located between described front bumper beam and described energy-absorption box, and the material of described front bumper beam and described energy-absorption box is carbon fiber composite material.
In a kind of possible implementation of the present invention, described energy-absorption box comprises endergonic structure, the first connecting panel and the second connecting panel on the vehicle body being arranged on automobile, described first connecting panel and described second connecting panel are separately positioned on the two ends of described endergonic structure, described first connecting panel is connected with described front bumper beam with the first bolt by described bonding glue-line, and described second connecting panel is connected with described vehicle body by the second bolt.
In another possible implementation of the present invention, described endergonic structure comprises multiple spaced energy-absorbing post, energy-absorbing post described in each is all arranged between described first connecting panel and described second connecting panel, described energy-absorbing post and described second connecting panel perpendicular.
In another possible implementation of the present invention, the length of described energy-absorbing post is greater than 130mm.
In another possible implementation of the present invention, between every two adjacent described energy-absorbing posts, be all connected with energy-absorbing plate.
In another possible implementation of the present invention, a pair opposite side of described first connecting panel is provided with locations, and described locations protrudes from described first connecting panel, and described locations is connected with described front bumper beam by the 3rd bolt.
In another possible implementation of the present invention, described front bumper beam comprises and holds the face of hitting and attachment face, describedly hold the contrary two sides that the face of hitting and described attachment face are described front bumper beam, on described attachment face, the position of corresponding described energy-absorption box is provided with installation portion, and described installation portion and described first connecting panel and described locations match.
In another possible implementation of the present invention, described installation portion comprises the erecting stage protruding from described attachment face, described first connecting panel is connected with described front bumper beam by described erecting stage, and described locations is connected to the both sides of described erecting stage.
In another possible implementation of the present invention, described front bumper beam comprise be located at described in hold the projection of the strip shape on the face of hitting, described projection extends along the length direction of described front bumper beam, and described projection is hollow structure, and is provided with foam layer in described projection.
In another possible implementation of the present invention, described bonding glue-line is epoxy cement glue-line.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is:
By adopting front bumper beam and the energy-absorption box of carbon fiber composite material, and front bumper beam and energy-absorption box are linked together by bonding glue-line, because the intensity of the front bumper beam of carbon fiber composite material is very high, so do not need to install front bumper beam brace panel additional in addition on front bumper beam, and then simplify the structure of front bumper, reduce the weight of front bumper.And, because the material of energy-absorption box is similarly carbon fiber composite material, make energy-absorption box can have higher endergonic ability, so it is long not need the Design of length of energy-absorption box, thus avoid the stability that longer energy-absorption box affects front bumper.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the front bumper that the embodiment of the present invention provides;
Fig. 2 is the scheme of installation of the energy-absorption box that the embodiment of the present invention provides;
Fig. 3 is the structural representation holding the face of hitting that the embodiment of the present invention provides;
In figure, each symbol represents that implication is as follows:
1-front bumper beam, 11-holds the face of hitting, 12-attachment face, 13-installation portion, 14-projection, 15-foam layer, 2-energy-absorption box, 21-endergonic structure, 211-energy-absorbing post, 212-energy-absorbing plate, 22-first connecting panel, 23-second connecting panel, 24-locations, the bonding glue-line of 3-.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment
A kind of automobile front beam that the embodiment of the present invention provides, Fig. 1 is the structural representation of front bumper, and as shown in Figure 1, this front bumper comprises front bumper beam 1 and energy-absorption box 2, and energy-absorption box 2 is arranged on front bumper beam 1.Wherein, front bumper beam 1 is arc, energy-absorption box 2 is connected with the inner arc of the front bumper beam 1 of arc, as preferably, the outer arc length of the front bumper beam 1 of arc is 1600mm, the radius of curvature of outer arc is 1739.5mm, makes front bumper beam 1 have larger curvature, to facilitate processing.It should be noted that, in production application, the shape of front bumper beam 1 is also not only confined to above-mentioned preferred version, and can also be other shapes, as linear etc., the present invention limit this.
In above-mentioned implementation, front bumper can comprise two energy-absorption boxes, 2, two energy-absorption boxes 2 with the angular bisector of the angle in circular segment of the front bumper beam 1 of arc for rotational symmetry is arranged, thus makes front bumper have stable structure more.
In embodiments of the present invention, front bumper also comprises bonding glue-line 3, and bonding glue-line 3 is located between front bumper beam 1 and energy-absorption box 2, and the material of front bumper beam 1 and energy-absorption box 2 is carbon fiber composite material.Easy understand, be connected by bonding glue-line between front bumper beam 1 with energy-absorption box 2.
The embodiment of the present invention is by adopting front bumper beam 1 and the energy-absorption box 2 of carbon fiber composite material, and front bumper beam 1 and energy-absorption box 2 are linked together by bonding glue-line 3, because the intensity of the front bumper beam 1 of carbon fiber composite material is very high, so do not need to install front bumper beam brace panel additional in addition on front bumper beam 1, and then simplify the structure of front bumper, reduce the weight of front bumper.And, because the material of energy-absorption box 2 is similarly carbon fiber composite material, make energy-absorption box 2 can have higher endergonic ability, so it is long not need the Design of length of energy-absorption box 2, thus avoid the stability that longer energy-absorption box 2 affects front bumper.
What be worth further illustrating is, through 40% offset collision experiment repeatedly, the front bumper beam 1 of carbon fiber composite material and the ratio energy-absorbing of energy-absorption box 2 can be drawn, exceed 55%-60% than the front bumper beam 1 of traditional metal materials and the ratio energy-absorbing of energy-absorption box 2, thus improve the safety performance of front bumper.Wherein, be the important parameter weighing structural energy absorption power than energy-absorbing, refer to that structure effectively destroys the energy that in length, unit mass absorbs.
Fig. 2 is the scheme of installation of energy-absorption box, as shown in Figure 2, in embodiments of the present invention, energy-absorption box 2 comprises endergonic structure 21, first connecting panel 22 and the second connecting panel 23 in the vehicle body (not shown) being arranged on automobile, first connecting panel 22 and the second connecting panel 23 are separately positioned on the two ends of endergonic structure 21, first connecting panel 22 is connected with front bumper beam 1 with the first bolt (not shown) by bonding glue-line 3, and the second connecting panel 23 is connected with vehicle body by the second bolt (not shown).
Preferably, the bolt of the first bolt specification Ф 6 × 20 of being.
Easy understand, before assembly during bumper/spoiler, can first by bonding glue-line 3, energy-absorption box 2 be bonded on front bumper beam 1, to play the effect of location energy-absorption box 2, by the first bolt, energy-absorption box 2 is fixedly installed on front bumper beam 1 more subsequently, thus ensure that the correct installation of energy-absorption box 2.
Particularly, bonding glue-line 3 is epoxy cement glue-line, thus make use of the high characteristic of epoxy cement glue-line adhesive strength, has ensured the structural strength of front bumper.It should be noted that, although have employed bonding first connecting panel 22 of epoxy cement glue-line and front bumper beam 1 in the present embodiment, easy understand, in other embodiments, also can adopt other bonding glue-line, as structural adhesive layer etc., the present invention does not limit this.
Preferably, epoxy cement glue-line is L135G3 epoxy cement glue-line.
Continue see Fig. 2, in the present embodiment, endergonic structure 21 comprises multiple spaced energy-absorbing post 211, each energy-absorbing post 211 is all arranged between the first connecting panel 22 and the second connecting panel 23, energy-absorbing post 211 and the second connecting panel 23 perpendicular, make each energy-absorbing post 211 constitute truss structure, strengthen the intensity of endergonic structure 21.As preferably, the middle part of the first connecting panel 22 and the second connecting panel 23 can be engraved structure, to alleviate the weight of energy-absorption box 2.
Preferably, the length of energy-absorbing post 211 is greater than 130mm, thus ensure that energy-absorption box 2 can absorb more energy.In embodiments of the present invention, because the material of energy-absorption box 2 is carbon fiber composite material, so the energy-absorption box 2 in the application can reach safety rate with less length, thus avoid the problem causing front bumper instability because energy-absorption box 2 is long.In addition, because front bumper beam 1 is arcuate structure, energy-absorbing post 211 is vertical with the second connecting panel 23, so the length of each energy-absorbing post 211 is not identical, as preferably, the length of the longest energy-absorbing post 211 is 137mm, easy understand, and the length of other energy-absorbing posts 211 can change accordingly according to the curvature of front bumper beam 1.
Particularly, between every two adjacent energy-absorbing posts 211, be all connected with energy-absorbing plate 212, make energy-absorbing post 211 and energy-absorbing plate 212 form a hollow endergonic structure 21, thus add the ratio energy-absorbing of energy-absorption box 2.
In embodiments of the present invention, a pair opposite side of the first connecting panel 22 is provided with locations 24, and locations 24 protrudes from the first connecting panel 22, and locations 24 is connected with front bumper beam 1 by the 3rd bolt (not shown).When energy-absorption box 2 is assembled to front bumper beam 1, because the first connecting panel 22 and front bumper beam 1 scribble bonding glue-line 3, waiting in the process that bonding glue-line 3 solidifies, can energy-absorption box 2 will be fixed on front bumper beam 1 by locations 24 and the 3rd bolt, to avoid producing relative displacement between energy-absorption box 2 and front bumper beam 1.
Preferably, the 3rd bolt is the bolt of specification Ф 6 × 30.
Particularly, front bumper beam 1 comprises and holds the face of hitting 11 and attachment face 12 (referring to Fig. 1), hold the contrary two sides that the face of hitting 11 and attachment face 12 are front bumper beam 1, on attachment face 12, the position of corresponding energy-absorption box 2 is provided with installation portion 13, and installation portion 13 and the first connecting panel 22 and locations 24 match.
Preferably, installation portion 13 comprises the erecting stage protruding from attachment face 12, and the first connecting panel 22 is connected with front bumper beam 1 by erecting stage, and locations 24 is connected to the both sides of erecting stage, to play the effect of location energy-absorption box 2.It should be noted that, in production application, the structure of installation portion 13 is not only confined to above-mentioned preferred structure, also can be other structures, such as, installation portion 13 can be the mounting groove matched with locations 24, and locations 24 can be plugged in mounting groove, can play the effect of location energy-absorption box 2 equally.
Fig. 3 is the structural representation holding the face of hitting, composition graphs 3, particularly, front bumper beam 1 comprises the projection 14 being located at the strip shape held on the face of hitting 11, projection 14 extends along the length direction of front bumper beam 1, projection 14 is hollow structure, and is provided with foam layer 15 in projection 14, thus plays the effect of the ratio energy-absorbing strengthening front bumper.In above-mentioned implementation, when the number of projection 14 is 2 as shown in Figure 3,2 projections 14 are arranged along 2 opposite side holding the face of hitting 11 respectively, it should be noted that, are only provided with 2 projections although hold in Fig. 3 on the face of hitting 11, but easy understand, also according to the actual requirements more projection can be set holding on the face of hitting 11, as 3,4 etc., when the number of projection 14 is greater than two, each projection 14 is holding interval setting on the face of hitting 11, and the number of the present invention to projection 14 does not limit.When realizing, front bumper beam 1 can be that integral molded plastic is shaping.
Simply introduce the assemble flow of front bumper provided by the invention below:
Step 1: the first connecting panel of grinding process energy-absorption box and installation portion, thus be convenient to follow-uply smear bonding glue-line;
Step 2: smear bonding glue-line on the first connecting panel, should note the through hole for coordinating the first bolt avoided on the first connecting panel when smearing;
Step 3: be bonded on installation portion by the first connecting panel scribbling bonding glue-line, needed to find installation position accurately by locations, correctly to install energy-absorption box before bonding;
Step 4: by the 3rd bolt, locations is mounted on installation portion, completes the location and installation of energy-absorption box, wait for bonding curable adhesive layer;
Step 5: after being with bonding curable adhesive layer, is mounted on installation portion by energy-absorption box by the first bolt, completes the fixed installation of energy-absorption box;
Step 6: by the second bolt and the second adapter plate, front bumper is mounted on vehicle body, thus completes the fitting work of front bumper.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an automobile front beam, described front bumper comprises: front bumper beam and energy-absorption box, described energy-absorption box is arranged on described front bumper beam, it is characterized in that, described front bumper also comprises bonding glue-line, described bonding glue-line is located between described front bumper beam and described energy-absorption box, and the material of described front bumper beam and described energy-absorption box is carbon fiber composite material.
2. front bumper according to claim 1, it is characterized in that, described energy-absorption box comprises endergonic structure, the first connecting panel and the second connecting panel on the vehicle body being arranged on automobile, described first connecting panel and described second connecting panel are separately positioned on the two ends of described endergonic structure, described first connecting panel is connected with described front bumper beam with the first bolt by described bonding glue-line, and described second connecting panel is connected with described vehicle body by the second bolt.
3. front bumper according to claim 2, it is characterized in that, described endergonic structure comprises multiple spaced energy-absorbing post, and energy-absorbing post described in each is all arranged between described first connecting panel and described second connecting panel, described energy-absorbing post and described second connecting panel perpendicular.
4. front bumper according to claim 3, is characterized in that, the length of described energy-absorbing post is greater than 130mm.
5. front bumper according to claim 4, is characterized in that, is all connected with energy-absorbing plate between every two adjacent described energy-absorbing posts.
6. front bumper according to claim 2, is characterized in that, a pair opposite side of described first connecting panel is provided with locations, and described locations protrudes from described first connecting panel, and described locations is connected with described front bumper beam by the 3rd bolt.
7. front bumper according to claim 6, it is characterized in that, described front bumper beam comprises and holds the face of hitting and attachment face, describedly hold the contrary two sides that the face of hitting and described attachment face are described front bumper beam, on described attachment face, the position of corresponding described energy-absorption box is provided with installation portion, and described installation portion and described first connecting panel and described locations match.
8. front bumper according to claim 7, it is characterized in that, described installation portion comprises the erecting stage protruding from described attachment face, and described first connecting panel is connected with described front bumper beam by described erecting stage, and described locations is connected to the both sides of described erecting stage.
9. front bumper according to claim 7, it is characterized in that, described front bumper beam comprise be located at described in hold the projection of the strip shape on the face of hitting, described projection extends along the length direction of described front bumper beam, described projection is hollow structure, and is provided with foam layer in described projection.
10. the front bumper according to any one of claim 1-9, is characterized in that, described bonding glue-line is epoxy cement glue-line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510611978.6A CN105172721A (en) | 2015-09-23 | 2015-09-23 | Automotive front bumper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510611978.6A CN105172721A (en) | 2015-09-23 | 2015-09-23 | Automotive front bumper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105172721A true CN105172721A (en) | 2015-12-23 |
Family
ID=54895333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510611978.6A Pending CN105172721A (en) | 2015-09-23 | 2015-09-23 | Automotive front bumper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105172721A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105835952A (en) * | 2016-04-29 | 2016-08-10 | 奇瑞汽车股份有限公司 | Automobile anti-collision crossbeam assembly and making method thereof |
| CN106740611A (en) * | 2017-03-15 | 2017-05-31 | 李伟 | A kind of automobile front bumper device |
| CN108909661A (en) * | 2018-04-21 | 2018-11-30 | 浙江合众新能源汽车有限公司 | Preceding guarantor's transverse beam system |
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| JPH1134140A (en) * | 1997-07-23 | 1999-02-09 | Honda Motor Co Ltd | Manufacture of resin bumper beam and resin bumper beam |
| CN201824979U (en) * | 2010-08-23 | 2011-05-11 | 北汽福田汽车股份有限公司 | Bumper and automobile with same |
| CN103950418A (en) * | 2014-05-05 | 2014-07-30 | 上海交通大学 | Carbon fiber composite bumper structure for automobile |
| CN203996061U (en) * | 2014-07-31 | 2014-12-10 | 上海汽车集团股份有限公司 | Federal bumper and automobile |
| CN104590175A (en) * | 2014-12-24 | 2015-05-06 | 芜湖市汽车产业技术研究院有限公司 | Carbon fiber energy-absorption collision-prevention device for car |
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2015
- 2015-09-23 CN CN201510611978.6A patent/CN105172721A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1134140A (en) * | 1997-07-23 | 1999-02-09 | Honda Motor Co Ltd | Manufacture of resin bumper beam and resin bumper beam |
| CN201824979U (en) * | 2010-08-23 | 2011-05-11 | 北汽福田汽车股份有限公司 | Bumper and automobile with same |
| CN103950418A (en) * | 2014-05-05 | 2014-07-30 | 上海交通大学 | Carbon fiber composite bumper structure for automobile |
| CN203996061U (en) * | 2014-07-31 | 2014-12-10 | 上海汽车集团股份有限公司 | Federal bumper and automobile |
| CN104590175A (en) * | 2014-12-24 | 2015-05-06 | 芜湖市汽车产业技术研究院有限公司 | Carbon fiber energy-absorption collision-prevention device for car |
Non-Patent Citations (1)
| Title |
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| HEUNG-SOO KIM: "New extruded multi-cell aluminum profile for maximum crash energy absorption and weight efficiency", 《THIN-WALLED STRUCTURES》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105835952A (en) * | 2016-04-29 | 2016-08-10 | 奇瑞汽车股份有限公司 | Automobile anti-collision crossbeam assembly and making method thereof |
| CN106740611A (en) * | 2017-03-15 | 2017-05-31 | 李伟 | A kind of automobile front bumper device |
| CN108909661A (en) * | 2018-04-21 | 2018-11-30 | 浙江合众新能源汽车有限公司 | Preceding guarantor's transverse beam system |
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| C06 | Publication | ||
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 241000 Anshan South Road, Wuhu economic and Technological Development Zone, Anhui Applicant after: Wuhu male lion Automobile Technology Co., Ltd. Address before: 241000 Hengshan Road 35, Wuhu economic and Technological Development Zone, Anhui Applicant before: WUHU RESEARCH INSTITUTE OF INSTITUTE TECHNOLOGY OF AUTOMOBILE CO., LTD. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151223 |