CN104442307A - Automobile back door strengthening structure - Google Patents
Automobile back door strengthening structure Download PDFInfo
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- CN104442307A CN104442307A CN201410710791.7A CN201410710791A CN104442307A CN 104442307 A CN104442307 A CN 104442307A CN 201410710791 A CN201410710791 A CN 201410710791A CN 104442307 A CN104442307 A CN 104442307A
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- back door
- plate
- inner plate
- backdoor
- reinforcement structure
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Abstract
The invention relates to an automobile back door, in particular to an automobile back door strengthening structure. The automobile back door strengthening structure comprises a back door outer plate and the back door, wherein a back door inner plate and the back door are fixed into a whole. A connecting plate is arranged at the upper portion of an inner cavity formed between the back door outer plate and the back door inner plate, inner plate strengthening plates are fixed to the two ends of the connecting plate, and a strengthening structure is formed by the connecting plate and each inner plate strengthening plate, wherein two face plates of the strengthening structure, the inner plate face of the back door outer plate and the inner plate face of the back door inner plate are welded into a whole. Due to the structure, the modality and lateral rigidity of the back door are improved, and the rigidity performance of a hinge installing point is enhanced.
Description
Technical field
The present invention relates to automotive back door, specifically a kind ofly reduce automobile body welding accuracy requirement, reduce manufacturing cost and the automobile back door reinforcement structure of enhancing productivity.
Background technology
Automotive back door is crucial parts on vehicle body, be connected with vehicle body with snap close by hinge, an organic whole with vehicle body, back door is when designing, first must ensure its leak tightness, ensure that tailgate assembly must meet the requirement of vehicle body overall performance in intensity, rigidity, mode and manufacturability etc. simultaneously.
Back door applying working condition is in practice comparatively complicated, is to be subject to time dependent load effect in its working process, as unreasonable in designed, the certain requirement of performance out of reach.The back door of prior art there will be the backdoor inner plate cracking of hinge attachment point panel beating cracking, latch position cracking and back door in real vehicle use procedure, and the back door caused because lateral rigidity is not enough and gusset are assemblied in real vehicle use procedure and mutually interfere.
In sum, in use, easily occur the backdoor inner plate cracking of hinge attachment point panel beating cracking, latch position cracking and back door, lateral rigidity deficiency causes back door and gusset mutually to interfere to the back door of prior art.
Summary of the invention
The object of this invention is to provide a kind of automobile back door reinforcement structure improving back door mode, lateral rigidity and raising hinge attachment point rigidity property.
The technical scheme adopted for realizing above-mentioned purpose of the present invention is: a kind of automobile back door reinforcement structure, comprises the back door of tailgate outside plate and backdoor inner plate fixed bit one; Wherein:
The inner chamber top formed between described tailgate outside plate and backdoor inner plate is provided with connecting panel, the two ends of this connecting panel are all fixed with inner panel brace panel, described connecting panel and inner panel brace panel are formed strengthens structure, and two panels of this reinforcement structure are welded as a whole with the inner plate surface of tailgate outside plate and the inner plate surface of backdoor inner plate respectively.
Due to said structure, improve back door mode, lateral rigidity and improve hinge attachment point rigidity property.
Accompanying drawing explanation
The nonlimiting examples that the present invention can be provided by accompanying drawing further illustrates.
Fig. 1 is the structural representation that the present invention installs.
Fig. 2 is the structural representation that the present invention is arranged on car body.
Fig. 3 is the structural representation at connecting panel of the present invention and inner panel brace panel place.
Fig. 4 is the structural representation that inner and outer plates of the present invention connects back-up block place.
In figure: 1, tailgate outside plate; 2, backdoor inner plate; 3, connecting panel; 4, hinged adapter plate; 5, inner panel brace panel; 6, inner and outer plates connects back-up block; A, B, C, D are hinged attachment point.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
See the automobile back door reinforcement structure in accompanying drawing 1 to 4, figure, comprise tailgate outside plate 1 and backdoor inner plate 2 fixed bit back door integrally; Wherein:
The inner chamber top formed between described tailgate outside plate 1 and backdoor inner plate 2 is provided with connecting panel 3, the two ends of this connecting panel 3 are all fixed with inner panel brace panel 5, described connecting panel 3 is formed with inner panel brace panel 5 and strengthens structure, and two panels of this reinforcement structure are welded as a whole with the inner plate surface of tailgate outside plate 1 and the inner plate surface of backdoor inner plate 2 respectively.In this embodiment, improve back door mode, lateral rigidity.Under equal experiment condition, the torsion mode of the back door of prior art is 25.92Hz, but the torsion mode of back door described in this structure is 26.40Hz.Significantly improve back door mode, lateral rigidity.
For ensureing the intensity of the hinged attachment point of back door and car body, in above-described embodiment, preferably: described backdoor inner plate 2 top is fixed with hinged adapter plate 4, the hinged attachment point of back door and car body is positioned on hinged adapter plate 4.In this embodiment, hinge attachment point rigidity is as shown in following table one:
Table one hinge attachment point rigidity
| Hinged attachment point | Power (N) | Original design N/mm | This structure N/mm |
| A | 200 | 540 | 706 |
| B | 200 | 371 | 739 |
| C | 200 | 535 | 729 |
| D | 200 | 370 | 735 |
Described structure significantly improves hinge attachment point rigidity, namely improves hinge attachment point rigidity property.Draw under equal experiment condition during data described in table one.
For ease of loading and unloading hinged adapter plate 4, in above-described embodiment, preferably: described hinged adapter plate 4 is bolted in the outer plate surface of backdoor inner plate 2.
For improving the rigidity of back door further, in above-described embodiment, preferably: be provided with inner and outer plates in the inner chamber bottom of described back door and connect back-up block 6, this inner and outer plates connects back-up block 6 and is welded as a whole with the inner plate surface of tailgate outside plate 1 and/or the inner plate surface of backdoor inner plate 2.
For further improving the rigidity of back door, in above-described embodiment, preferably: the inner plate surface of described backdoor inner plate 2 is provided with reinforced rib.
For further improving the rigidity of back door again, in above-described embodiment, preferably: a plate face in two plate faces of described connecting panel 3 and/or two plate faces are provided with reinforced rib.
For ease of assembling and the steadiness is connected, in above-described embodiment, preferably: described reinforced rib by the inner plate surface fixed bit of the inner plate surface of structural adhesion and tailgate outside plate 1 and/or backdoor inner plate 2 integrally
For ease of assembling and the steadiness be connected, in above-described embodiment, preferably: the inner plate surface bottom of described backdoor inner plate 2 is provided with groove, in groove, is filled with structural adhesion, the bottom of described tailgate outside plate 1 and the bottom of backdoor inner plate 2 are fixed as one by the structural adhesion in groove.
For ensureing the safety of assembling and transport, and improve the aesthetic property of back door, in above-described embodiment, preferably: the edge of described tailgate outside plate 1 has folding portion, and the edge of backdoor inner plate 2 is wrapped to form binding structure by this folding portion.
In above-mentioned all embodiments, structural adhesion is market products.
Obviously, all embodiments of foregoing description are a part of embodiments of the present invention, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the category of the present invention's protection.
In sum, invention increases back door mode, lateral rigidity and improve hinge attachment point rigidity property.
Claims (9)
1. an automobile back door reinforcement structure, comprises tailgate outside plate (1) and backdoor inner plate (2) fixed bit back door integrally; It is characterized in that:
The inner chamber top formed between described tailgate outside plate (1) and backdoor inner plate (2) is provided with connecting panel (3), the two ends of this connecting panel (3) are all fixed with inner panel brace panel (5), described connecting panel (3) and inner panel brace panel (5) are formed strengthens structure, and two panels of this reinforcement structure are welded as a whole with the inner plate surface of tailgate outside plate (1) and the inner plate surface of backdoor inner plate (2) respectively.
2. automobile back door reinforcement structure according to claim 1, is characterized in that: described backdoor inner plate (2) top is fixed with hinged adapter plate (4), and the hinged attachment point of back door and car body is positioned on hinged adapter plate (4).
3. automobile back door reinforcement structure according to claim 2, is characterized in that: described hinged adapter plate (4) is bolted in the outer plate surface of backdoor inner plate (2).
4. automobile back door reinforcement structure according to claim 1, it is characterized in that: be provided with inner and outer plates in the inner chamber bottom of described back door and connect back-up block (6), this inner and outer plates connects back-up block (6) and is welded as a whole with the inner plate surface of tailgate outside plate (1) and/or the inner plate surface of backdoor inner plate (2).
5. according to the automobile back door reinforcement structure one of Claims 1-4 Suo Shu, it is characterized in that: the inner plate surface of described backdoor inner plate (2) is provided with reinforced rib.
6. automobile back door reinforcement structure according to claim 1, is characterized in that: a plate face in two plate faces of described connecting panel (3) and/or two plate faces are provided with reinforced rib.
7. automobile back door reinforcement structure according to claim 6, is characterized in that: the inner plate surface of described reinforced rib by structural adhesion and tailgate outside plate (1) and/or the inner plate surface fixed bit one of backdoor inner plate (2).
8. automobile back door reinforcement structure according to claim 1, it is characterized in that: the inner plate surface bottom of described backdoor inner plate (2) is provided with groove, be filled with structural adhesion in groove, the bottom of described tailgate outside plate (1) and the bottom of backdoor inner plate (2) are fixed as one by the structural adhesion in groove.
9. automobile back door reinforcement structure according to claim 1, is characterized in that: the edge of described tailgate outside plate (1) has folding portion, and the edge of backdoor inner plate (2) is wrapped to form binding structure by this folding portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710791.7A CN104442307A (en) | 2014-12-01 | 2014-12-01 | Automobile back door strengthening structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710791.7A CN104442307A (en) | 2014-12-01 | 2014-12-01 | Automobile back door strengthening structure |
Publications (1)
| Publication Number | Publication Date |
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| CN104442307A true CN104442307A (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410710791.7A Pending CN104442307A (en) | 2014-12-01 | 2014-12-01 | Automobile back door strengthening structure |
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| CN (1) | CN104442307A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382433A (en) * | 2015-11-16 | 2016-03-09 | 龙工（上海）挖掘机制造有限公司 | Technological method for machining large excavator door |
| CN105904948A (en) * | 2016-04-13 | 2016-08-31 | 重庆长安汽车股份有限公司 | Flip-up back door assembly of automobile |
| CN106799955A (en) * | 2015-11-26 | 2017-06-06 | 长城汽车股份有限公司 | Automobile back door structure and body of a motor car |
| CN107487163A (en) * | 2016-10-28 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Tail-gate inner panel, tail-gate structure and there is its vehicle |
| CN108528178A (en) * | 2018-03-02 | 2018-09-14 | 上海思致汽车工程技术有限公司 | A kind of automobile back door assembly structure |
| CN109532434A (en) * | 2018-12-29 | 2019-03-29 | 威马智慧出行科技（上海）有限公司 | Electric back door inner panel |
| CN115257319A (en) * | 2022-07-18 | 2022-11-01 | 中国第一汽车股份有限公司 | Hatchback door sheet metal structure and car |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011051544A (en) * | 2009-09-04 | 2011-03-17 | Kanto Auto Works Ltd | Back door |
| JP2011121479A (en) * | 2009-12-10 | 2011-06-23 | Kanto Auto Works Ltd | Fittings-accuracy adjusting method of back door |
| CN203032343U (en) * | 2012-11-26 | 2013-07-03 | 武汉惠恒实业有限公司 | Reinforcing plate for lock catch of automotive back door |
| CN203186048U (en) * | 2013-04-03 | 2013-09-11 | 北汽福田汽车股份有限公司 | Automobile back door and automobile |
| CN103842192A (en) * | 2011-10-05 | 2014-06-04 | 丰田自动车株式会社 | Opening / closing body structure for vehicle |
| CN204279010U (en) * | 2014-12-01 | 2015-04-22 | 北汽银翔汽车有限公司 | Automobile back door reinforcement structure |
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2014
- 2014-12-01 CN CN201410710791.7A patent/CN104442307A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011051544A (en) * | 2009-09-04 | 2011-03-17 | Kanto Auto Works Ltd | Back door |
| JP2011121479A (en) * | 2009-12-10 | 2011-06-23 | Kanto Auto Works Ltd | Fittings-accuracy adjusting method of back door |
| CN103842192A (en) * | 2011-10-05 | 2014-06-04 | 丰田自动车株式会社 | Opening / closing body structure for vehicle |
| CN203032343U (en) * | 2012-11-26 | 2013-07-03 | 武汉惠恒实业有限公司 | Reinforcing plate for lock catch of automotive back door |
| CN203186048U (en) * | 2013-04-03 | 2013-09-11 | 北汽福田汽车股份有限公司 | Automobile back door and automobile |
| CN204279010U (en) * | 2014-12-01 | 2015-04-22 | 北汽银翔汽车有限公司 | Automobile back door reinforcement structure |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105382433A (en) * | 2015-11-16 | 2016-03-09 | 龙工（上海）挖掘机制造有限公司 | Technological method for machining large excavator door |
| CN106799955A (en) * | 2015-11-26 | 2017-06-06 | 长城汽车股份有限公司 | Automobile back door structure and body of a motor car |
| CN105904948A (en) * | 2016-04-13 | 2016-08-31 | 重庆长安汽车股份有限公司 | Flip-up back door assembly of automobile |
| CN107487163A (en) * | 2016-10-28 | 2017-12-19 | 宝沃汽车（中国）有限公司 | Tail-gate inner panel, tail-gate structure and there is its vehicle |
| CN108528178A (en) * | 2018-03-02 | 2018-09-14 | 上海思致汽车工程技术有限公司 | A kind of automobile back door assembly structure |
| CN109532434A (en) * | 2018-12-29 | 2019-03-29 | 威马智慧出行科技（上海）有限公司 | Electric back door inner panel |
| CN109532434B (en) * | 2018-12-29 | 2023-12-12 | 威马智慧出行科技（上海）有限公司 | Electric back door inner plate |
| CN115257319A (en) * | 2022-07-18 | 2022-11-01 | 中国第一汽车股份有限公司 | Hatchback door sheet metal structure and car |
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| C06 | Publication | ||
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Application publication date: 20150325 |