CN103538640B - For the buffer structure between the hood inner panel of vehicle engine compartments and cabin longeron - Google Patents
For the buffer structure between the hood inner panel of vehicle engine compartments and cabin longeron Download PDFInfo
- Publication number
- CN103538640B CN103538640B CN201310444338.1A CN201310444338A CN103538640B CN 103538640 B CN103538640 B CN 103538640B CN 201310444338 A CN201310444338 A CN 201310444338A CN 103538640 B CN103538640 B CN 103538640B
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- China
- Prior art keywords
- female portion
- bump rubber
- buffer structure
- hood
- structure according
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Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D27/00—Connections between superstructure or understructure sub-units
- B62D27/04—Connections between superstructure or understructure sub-units resilient
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
- E05Y2900/536—Hoods
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Superstructure Of Vehicle (AREA)
- Vibration Dampers (AREA)
- Vibration Prevention Devices (AREA)
- Body Structure For Vehicles (AREA)
Abstract
For the buffer structure between the hood inner panel of vehicle engine compartments and cabin longeron, comprising: bump rubber; Be connected to the vibration-damped component between described cabin longeron and described bump rubber; With the recess at medial surface place being arranged on hood inner panel, recess has downward opening, so that when killing engine cabin, bump rubber extend in recess via opening; Wherein, the shape and size of the female portion and described bump rubber are arranged so that when machinery space is in closed condition, and described bump rubber is at least vertically and along lateral direction of car all against the inside face in the female portion.According to the fit system of this recess of the present invention and bump rubber, not only at vertical direction for hood provides buffer action, simultaneously can along on lateral direction of car also for hood provides obvious buffer action, greatly improve the Y-direction Constrained mode frequency of hood, thus reduce the phenomenon that hood and dynamic excitation occur to resonate, to reduce the risk of breakage of hinge.
Description
Technical field
The present invention relates to buffer technology, particularly relate to the buffer structure between a kind of hood inner panel for vehicle engine compartments and cabin longeron.
Background technology
The dynamic excitation that the hood of driving engine is subject to is mainly from road surface, and according to the difference of automobile driving speed, dynamic excitation frequency is generally concentrated in 0-50HZ.Because hood descends oscillation frequency lower in off position, resonate so very easily produce with dynamic excitation, thus there will be the hinge break of hood or the situation such as hinge installation seat is destroyed.Some hood size and the larger vehicle (such as: SUV vehicle) of weight, more exacerbate hinge break or the destroyed risk of hinge installation seat.
When automobile bumps against pedestrian, pedestrian can strike hood outer panel thus can produce impulsive contact force to hinge.So in the automobile design stage, consider the impact of hinge on pedestrian protecting, it is more weak that hinge can design usually, and this adds the risk of hinge break more.
Summary of the invention
The object of the present invention is to provide the buffer structure between a kind of hood inner panel for vehicle engine compartments and cabin longeron, solve the problem that hinge easily ruptures.
To achieve these goals, the invention provides the buffer structure between a kind of hood inner panel for vehicle engine compartments and cabin longeron, comprising:
Bump rubber;
Be connected to the vibration-damped component between described cabin longeron and described bump rubber; With
Be arranged on the recess at the medial surface place of described hood inner panel, the female portion has downward opening, so that when closing described machinery space, described bump rubber extend in the female portion via described opening;
Wherein, the shape and size of the female portion and described bump rubber are arranged so that when machinery space is in closed condition, and described bump rubber is at least vertically and along lateral direction of car all against the inside face in the female portion.
Preferably, the female portion tilts to extend relative to described vertical direction from described opening.
Preferably, the female portion at least extends in the plane medium dip limited by described vertical direction and lateral direction of car relative to described vertical direction from described opening.
Preferably, the female portion at least tilts to extend towards vehicle center relative to described vertical direction from described opening in the plane limited by described vertical direction and lateral direction of car.
Preferably, the female portion relative to the angle of inclination of described vertical direction in the plane limited by described vertical direction and lateral direction of car between 20 °-45 °.
Preferably, the inside face of the part of the vicinity in the female portion bottom it is gradually-reducing shape.
Preferably, the outside face of the end towards the female portion of described bump rubber is gradually-reducing shape, to match with the inside face in gradually-reducing shape in the female portion.
Preferably, the inside face of the part of the described opening of vicinity in the female portion is formed as guide surface, extend in the female portion for guiding described bump rubber.
Preferably, described bump rubber has separable package assembly and plug-in part; Wherein, the described plug-in part of described bump rubber is connected to described vibration-damped component; The described package assembly of described bump rubber is enclosed within described plug-in part outside separably.
Preferably, described vibration-damped component is the spring leaf of " several " font, and described spring leaf is connected on the longeron of described cabin, and described bump rubber is connected to the top raised up of described spring leaf.
In some existing engine casing assemblies, between hood and cabin longeron, provide bump rubber, but its Z-direction vibration being designed to be only hood provides buffering, the X for hood does not play any effect to Y-direction vibration.Present inventor finds, the hinge break of hood is mainly because hood causes along lateral direction of car (Y-direction) vibration.The shape and size of recess of the present invention and bump rubber are arranged so that when machinery space is in closed condition, described bump rubber at least vertically (Z-direction) and along lateral direction of car (Y-direction) all against the inside face in the female portion.According to the fit system of this recess of the present invention and bump rubber, not only at vertical direction for hood provides buffer action, simultaneously can along on lateral direction of car also for hood provides obvious buffer action, greatly improve the Y-direction Constrained mode frequency of hood, thus reduce the phenomenon that hood and dynamic excitation occur to resonate, to reduce the risk of breakage of hinge.Further, according to the present invention, the buffer action that also can simultaneously provide along longitudinal direction of car for hood easily.Effectively can improve hood lateral direction of car rigidity in off position according to buffer structure of the present invention, thus significantly reduce load suffered by hinge.Further, by reducing the hinge break risk caused by housings vibrate according to the present invention, significantly reduce the requirement of strength design to bonnet hinge, this provides larger room for improvement to pedestrian protecting.
For buffer structure of the present invention, recess can be recessed into the medial surface of described hood inner panel, can not take the space between the hood inner panel of machinery space and cabin longeron, thus provides sufficient design space for hinge.
According to hereafter by reference to the accompanying drawings to the detailed description of the specific embodiment of the invention, those skilled in the art will understand above-mentioned and other objects, advantage and feature of the present invention more.
Accompanying drawing explanation
Hereinafter describe specific embodiments more of the present invention with reference to the accompanying drawings by way of example, and not by way of limitation in detail.Reference numeral identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these accompanying drawings may not be drawn in proportion.In accompanying drawing:
Fig. 1 is the buffer structure of exemplary embodiment of the present decomposing state and hood inner panel and cabin longeron annexation schematic diagram;
Buffer structure and hood inner panel and cabin longeron annexation schematic diagram when Fig. 2 is the mode of operation of exemplary embodiment of the present;
Fig. 3 is that the recess of illustrative examples of the present invention is in Z-Y plane medium dip view;
Fig. 4 is the recess of exemplary embodiment of the present and the position relationship schematic diagram of hood inner panel;
Fig. 5 is the schematic diagram that in prior art, hood uses the hinge distribution of stress of abaqus software simulation under the excitation of lateral direction of car external load;
Fig. 6 is the schematic diagram that the hood being furnished with buffer structure of the present invention uses the hinge distribution of stress of abaqus software simulation under the horizontal external load excitation of same vehicle.
Number in the figure is as follows:
100-hood inner panel, 101-cabin longeron;
200-bump rubber, 201-package assembly, 202-plug-in part, 203-upper end;
300-vibration-damped component, 301-top;
400-recess, 401-opening, bottom 402-, 403-guide surface;
X to-longitudinal direction of car, Y-direction-lateral direction of car, Z-direction-vertical direction;
K-vertical direction line of reference;
L-recess line of centers;
β-angle of inclination.
Detailed description of the invention
In vehicle axis system used in this application, X is to referring to longitudinal direction of car, and Y-direction refers to lateral direction of car, and Z-direction refers to vertical direction.
The invention provides the buffer structure between a kind of hood inner panel 100 for vehicle engine compartments and cabin longeron 101, this buffer structure comprises bump rubber 200, vibration-damped component 300 and recess 400.
As depicted in figs. 1 and 2, vibration-damped component 300 is connected with described bump rubber 200 with described cabin longeron 101 respectively, thus vibration-damped component 300 entirety is between described cabin longeron 101 and described bump rubber 200.
Described bump rubber 200 has separable package assembly 201 and plug-in part 202.The described plug-in part 202 of described bump rubber 200 is fixedly connected with and is such as soldered to described vibration-damped component 300.Described plug-in part 202 can be made up of rigid material such as steel.Described vibration-damped component 300 can be the spring leaf of " several " font, and described spring leaf is connected on described cabin longeron 101.The design of " several " font can be good at the buffer shock-absorbing effect ensureing that vibration-damped component 300 plays.In other embodiments, described vibration-damped component 300 can also be the parts with elastic property of other form.Described bump rubber 200 is connected to the top 301 raised up of described spring leaf.It is outside that described package assembly 201 is enclosed within described plug-in part 202 separably.Compared to the bump rubber of single-piece in prior art, reduce the Joint strenght requirement between bump rubber 200 and vibration-damped component 300 according to the bump rubber of two-piece type of the present invention, thus significantly reduce the risk that bump rubber gets loose because of body vibrations in vehicle operation.
As depicted in figs. 1 and 2, recess 400 is arranged on the medial surface place of described hood inner panel 100, and hood outer panel is positioned at the outside of hood inner panel 100.In fig. 1 and 2, the female portion 400 has downward opening 401.When closing described machinery space, described bump rubber 200 extend in the female portion 400 via described opening 401.Particularly, the shape and size of the female portion 400 and described bump rubber 200 can be arranged so that as shown in Figure 2 when machinery space is in closed condition, described bump rubber 200 along Z-direction and along the Y-direction of vehicle all against the inside face in the female portion 400.Like this, recess 400 coordinates with bump rubber 200 the buffer action not only serving vertically i.e. Z-direction, also there iing obvious buffer action along lateral direction of car and Y-direction simultaneously, greatly improve the Constrained mode frequency of hood, thus reduce the phenomenon that hood and dynamic excitation occur to resonate, reduce the risk of breakage of hinge.
As shown in Figure 3, the female portion 400 tilts towards vehicle center on the whole from described opening 401 in the vertical direction plane Z-Y plane extended along longitudinal direction of car.The angle of vertical direction line of reference K and recess centre line L is the inclination angle beta in the female portion 400.This inclination angle beta can between 20 °-45 °.Need be appreciated that under the visual angle shown in Fig. 1, most of component at the angle of inclination of this recess 400 is perpendicular to the paper at Fig. 1 place, therefore seems not remarkable.
As shown in Figure 1 and Figure 4, the vicinity in the female portion 400 bottom it 402 the inside face of part be gradually-reducing shape, thus recess 400 is on the whole in enlarging shape.The degree of depth in the female portion 400 is generally 2-3cm, also can according to the size of hood and weight, the suitably degree of depth in increase and decrease the female portion 400.Size and the weight of hood are larger, and recess 400 is darker.Return Fig. 1 visible, the outside face of the upper end 203 towards the female portion 400 of described bump rubber 200 is gradually-reducing shape, to match with the inside face in gradually-reducing shape in the female portion 400.This design can make bump rubber 200 easily enter recess 400 on the one hand, the increase bump rubber 200 also can tried one's best on the other hand and the area of contact of recess 400.In the embodiment shown in fig. 3, the inside face of the part of the described opening 401 of vicinity in the female portion 400 is formed as guide surface 403, extend in the female portion 400 for guiding described bump rubber 200.The effect of guide surface 403 is to make described bump rubber 200 better extend in the female portion 400, and extend into after in the female portion 400 completing bump rubber 200, guide surface 403 does not contact with bump rubber 200.
The buffer action that acquisition buffer structure vibrates for hood Y-direction is focused on although of the present invention, but be appreciated that, for the buffer structure that the mode inserting recess 400 with bump rubber 200 is formed, as long as the shape and size design of recess 400 and bump rubber 200 is suitable, can be easy to and make bump rubber 200 along the longitudinal direction of vehicle and X to also against the inside face of recess 400 easily, thus also playing obvious damping of vibrations at the X of vehicle to hood.In another embodiment, also recess 400 can be made not only important in the Y-Z plane of vehicle relative to the angle of inclination of vertical direction, and can also have certain component in X-Z plane simultaneously, so also can strengthen the X of bump rubber 200 along vehicle further to the damping of vibrations to hood.
In fig. 5 and fig., the stress value of different size is represented according to the difference of the dash area degree of depth.As shown in Figure 5 and Figure 6, under the excitation of identical lateral direction of car external load, the maximum hinge stress being furnished with buffer structure of the present invention has been reduced to 66MPa from adopting the 434MPa of existing buffer structure, reduces percentum up to 85%.Meanwhile, illustrate that hinge can also weaken further, under the prerequisite ensureing hinge strength, significantly can reduce the injury values of pedestrian protecting in hinge area.The frequency of existing hood under lateral direction of car horizontal vibration mode is 28HZ, and the frequency of hood under lateral direction of car horizontal vibration mode being furnished with buffer structure of the present invention is 36HZ, improves 8HZ.
So far, those skilled in the art will recognize that, although multiple exemplary embodiment of the present invention is illustrate and described herein detailed, but, without departing from the spirit and scope of the present invention, still can directly determine or derive other modification many or amendment of meeting the principle of the invention according to content disclosed by the invention.Therefore, scope of the present invention should be understood and regard as and cover all these other modification or amendments.
Claims (11)
1., for the buffer structure between the hood inner panel (100) of vehicle engine compartments and cabin longeron (101), comprising:
Bump rubber (200);
Be connected to the vibration-damped component (300) between described cabin longeron (101) and described bump rubber (200); With
Be arranged on the recess (400) at the medial surface place of described hood inner panel (100), the female portion (400) has downward opening (401), so that when closing described machinery space, described bump rubber (200) extend in the female portion (400) via described opening (401);
Wherein, the shape and size of the female portion (400) and described bump rubber (200) are arranged so that when machinery space is in closed condition, described bump rubber (200) at least vertically (Z-direction) and along lateral direction of car (Y-direction) all against the inside face of the female portion (400);
Wherein, described bump rubber (200) has separable package assembly (201) and plug-in part (202); Wherein, the described plug-in part (202) of described bump rubber (200) is connected to described vibration-damped component (300); The described package assembly (201) of described bump rubber (200) is enclosed within described plug-in part (202) outside separably.
2. buffer structure according to claim 1, is characterized in that,
The female portion (400) tilts to extend relative to described vertical direction from described opening (401).
3. buffer structure according to claim 1, is characterized in that,
The female portion at least extends in plane (Z-Y plane) medium dip limited by described vertical direction (Z-direction) and lateral direction of car (Y-direction) relative to described vertical direction from described opening (401).
4. buffer structure according to claim 1, is characterized in that,
The female portion at least tilts to extend towards vehicle center relative to described vertical direction from described opening (401) in the plane (Z-Y plane) limited by described vertical direction (Z-direction) and lateral direction of car (Y-direction).
5. the buffer structure according to claim 3 or 4, is characterized in that,
The female portion (400) relative to the angle of inclination of described vertical direction in the plane (Z-Y plane) limited by described vertical direction (Z-direction) and lateral direction of car (Y-direction) between 20 °-45 °.
6. the buffer structure according to any one of claim 1-4, is characterized in that,
The inside face of the vicinity in the female portion (400) part of (402) bottom it is gradually-reducing shape.
7. buffer structure according to claim 6, is characterized in that,
The outside face of the end towards the female portion (400) of described bump rubber (200) is gradually-reducing shape, to match with the inside face in gradually-reducing shape of the female portion (400).
8. the buffer structure according to any one of claim 1-4, is characterized in that,
The inside face of the part of the described opening of vicinity (401) in the female portion (400) is formed as guide surface (403), extend in the female portion (400) for guiding described bump rubber (200).
9. buffer structure according to claim 6, is characterized in that,
The inside face of the part of the described opening of vicinity (401) in the female portion (400) is formed as guide surface (403), extend in the female portion (400) for guiding described bump rubber (200).
10. buffer structure according to claim 7, is characterized in that,
The inside face of the part of the described opening of vicinity (401) in the female portion (400) is formed as guide surface (403), extend in the female portion (400) for guiding described bump rubber (200).
11. buffer structures according to any one of claim 1-4, is characterized in that,
Described vibration-damped component (300) is the spring leaf of " several " font, described spring leaf is connected on described cabin longeron (101), and described bump rubber (200) is connected to the top (301) raised up of described spring leaf.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310444338.1A CN103538640B (en) | 2013-09-25 | 2013-09-25 | For the buffer structure between the hood inner panel of vehicle engine compartments and cabin longeron |
| CN201610283360.6A CN105927087B (en) | 2013-09-25 | 2013-09-25 | For the buffer structure between the hood inner panel and cabin longeron of vehicle engine compartments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310444338.1A CN103538640B (en) | 2013-09-25 | 2013-09-25 | For the buffer structure between the hood inner panel of vehicle engine compartments and cabin longeron |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610283360.6A Division CN105927087B (en) | 2013-09-25 | 2013-09-25 | For the buffer structure between the hood inner panel and cabin longeron of vehicle engine compartments |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103538640A CN103538640A (en) | 2014-01-29 |
| CN103538640B true CN103538640B (en) | 2016-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610283360.6A Active CN105927087B (en) | 2013-09-25 | 2013-09-25 | For the buffer structure between the hood inner panel and cabin longeron of vehicle engine compartments |
| CN201310444338.1A Active CN103538640B (en) | 2013-09-25 | 2013-09-25 | For the buffer structure between the hood inner panel of vehicle engine compartments and cabin longeron |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610283360.6A Active CN105927087B (en) | 2013-09-25 | 2013-09-25 | For the buffer structure between the hood inner panel and cabin longeron of vehicle engine compartments |
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| Country | Link |
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| CN (2) | CN105927087B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425064B (en) * | 2019-07-12 | 2024-03-26 | 恒勃控股股份有限公司 | Air filter damping device convenient to detach and firm to install |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19644236A1 (en) * | 1996-10-24 | 1998-04-30 | Daimler Benz Ag | Front structure for private vehicle |
| CN1762752A (en) * | 2004-09-30 | 2006-04-26 | 马自达汽车株式会社 | Hood stopper structure for automobile |
| CN2846262Y (en) * | 2005-10-29 | 2006-12-13 | 重庆长安汽车股份有限公司 | Front cover buffer cushion structure for automobile |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03271082A (en) * | 1990-03-20 | 1991-12-03 | Kinugawa Rubber Ind Co Ltd | Mounting structure for bumper rubber |
| KR19980027994A (en) * | 1996-10-18 | 1998-07-15 | 박병재 | Hood Overslam Bumper Shock Absorber |
| JP2007091079A (en) * | 2005-09-29 | 2007-04-12 | Toyota Motor Corp | Cushion supporting structure for opening and closing door |
| JP2008001154A (en) * | 2006-06-20 | 2008-01-10 | Toyota Motor Corp | Engine hood support |
| US7731262B2 (en) * | 2008-11-05 | 2010-06-08 | Gm Global Technology Operations, Inc. | Closure damper assembly |
| US8182027B2 (en) * | 2009-06-15 | 2012-05-22 | Toyota Motor Engineering & Manufacturing North America, Inc. | Fender structure assemblies for vehicles |
| JP2011163245A (en) * | 2010-02-12 | 2011-08-25 | Daihatsu Motor Co Ltd | Cover body mounting structure |
| CN202180861U (en) * | 2011-07-31 | 2012-04-04 | 长城汽车股份有限公司 | Buffering block of automotive engine cover |
-
2013
- 2013-09-25 CN CN201610283360.6A patent/CN105927087B/en active Active
- 2013-09-25 CN CN201310444338.1A patent/CN103538640B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19644236A1 (en) * | 1996-10-24 | 1998-04-30 | Daimler Benz Ag | Front structure for private vehicle |
| CN1762752A (en) * | 2004-09-30 | 2006-04-26 | 马自达汽车株式会社 | Hood stopper structure for automobile |
| CN2846262Y (en) * | 2005-10-29 | 2006-12-13 | 重庆长安汽车股份有限公司 | Front cover buffer cushion structure for automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105927087A (en) | 2016-09-07 |
| CN103538640A (en) | 2014-01-29 |
| CN105927087B (en) | 2017-11-10 |
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