CN208963002U - A kind of expansion plastic structure - Google Patents
A kind of expansion plastic structure Download PDFInfo
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- CN208963002U CN208963002U CN201821786098.8U CN201821786098U CN208963002U CN 208963002 U CN208963002 U CN 208963002U CN 201821786098 U CN201821786098 U CN 201821786098U CN 208963002 U CN208963002 U CN 208963002U
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- skeleton
- layer
- plastic structure
- expansion plastic
- expansion
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- Body Structure For Vehicles (AREA)
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Abstract
The utility model discloses a kind of expansion plastic structures, by adhesive layer, first skeleton, second skeleton, sound absorbing layer and expanding layer are constituted, adhesive layer is attached in vehicle cavity wall, first skeleton and the first skeleton are twined and are connect, and at iron wire web frame, in-between and it is filled with sound absorbing layer, expanding layer is fixed in the lower section of the second skeleton, the expanding layer is because after the frictional heating of automobile cavity, to which gap is blocked in foaming, obtain the effect for avoiding high-speed flow from scurrying into gap, first skeleton and second skeleton are pre-buried in advance in expanding layer injection molding, it avoids deforming after the completion of injection molding, and evade the effect of the sagging in foaming process.
Description
Technical field
The utility model relates to automobile manufacture accessory technical field more particularly to a kind of expansion plastic structures.
Background technique
For automobile manufacture, NVH performance is the major criterion of automobile, and the NVH performance of vehicle can make automobile exist well
In high-speed cruising, mitigate high-speed flow to rider and driver's bring noise and vibration.In recent years, with automobile manufacturing process
Continuous improvement and progress, high-speed flow that bodywork cavity is generated in high-speed cruising has been solved using expansion plastic structure very
Generally, but existing expansion plastic structure there are problems that being easily deformed after being molded.
Utility model content
The purpose of this utility model is to provide a kind of expansion plastic structures, it is intended to solve to hold after expansion plastic structure has injection molding
Easily-deformable problem.
To achieve the above object, the expansion plastic structure includes adhesive layer, the first skeleton, the second skeleton, sound absorbing layer and swollen
Swollen layer, first skeleton and the adhesive layer are affixed, and are located at the lower section of the adhesive layer, second skeleton and described the
One skeleton, which twines, to be connect, and is located at the lower section of first skeleton, and gap, first skeleton are equipped between first skeleton
It is iron wire web frame with second skeleton, the sound absorbing layer is filled between first skeleton and second skeleton,
The expanding layer and second skeleton are affixed, and are located at the lower section of second skeleton.
Wherein, four seamed edges of second skeleton are bent towards the direction of first skeleton.
Wherein, the surface layer of first skeleton and second skeleton is zinc-plated.
Wherein, the iron wire web frame of first skeleton and second skeleton is prismatic net.
Wherein, the grid of first skeleton is equal with the sizing grid of second skeleton, and mesh is corresponding, net bone is flat
Row.
Wherein, at least provided with a corresponding through-hole on the surface of the expanding layer, and through-hole is through to the adhesive layer
Upper surface, the expansion plastic structure further includes plastic buckle, and the plastic buckle is caught in through-hole.
Wherein, the expanding layer is high-temperature expansion foamed material.
Wherein, the adhesive layer of pressure sensitive adhesive resin material by being made.
Wherein, the expanding layer is additionally provided with venthole, and venthole extends to the expansion from the lower surface of the expanding layer
The upper surface of layer, but do not run through, the expansion plastic structure further includes vent plug, and the vent plug and the venthole cooperate.
The expansion plastic structure of the utility model, by by adhesive layer, the first skeleton, the second skeleton, sound absorbing layer and expanding layer
It constituting, the adhesive layer is attached in vehicle cavity wall, and first skeleton and first skeleton are twined and connect, and at iron wire web frame,
Between it and it is filled with the sound absorbing layer, the expanding layer is fixed in the lower section of second skeleton, and acquisition prevents product from foaming
Sagging and the effect that deforms in the process.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model expansion plastic structure；
Fig. 2 is the structural schematic diagram of the first skeleton of the utility model；
In figure: it is logical that 100- expands plastic structure, 10- adhesive layer, the first skeleton of 20-, the second skeleton of 30-, 40- expanding layer, 41-
Hole, 42- venthole, 50- plastic buckle, 60- vent plug, 70- sound absorbing layer.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term " length ", " width ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached
Orientation or positional relationship shown in figure, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion
Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of utility model.In addition, the meaning of " plurality " is two or more in the description of the present invention, unless separately
There is clearly specific restriction.
Fig. 1 and Fig. 2 are please referred to, the utility model provides a kind of expansion plastic structure 100, and the expansion plastic structure 100 wraps
Include adhesive layer 10, the first skeleton 20, the second skeleton 30, sound absorbing layer 70 and expanding layer 40, first skeleton 20 with it is described bonding
Layer 10 is affixed, and is located at the lower section of the adhesive layer 10, and second skeleton 30 is twined with first skeleton 20 and connect, and is located at institute
The lower section of the first skeleton 20 is stated, and is equipped with gap, first skeleton 20 and second bone between first skeleton 20
Frame 30 is iron wire web frame, and the sound absorbing layer 70 is filled between first skeleton 20 and second skeleton 30, described
Expanding layer 40 and second skeleton 30 are affixed, and are located at the lower section of second skeleton 30.
It in the embodiment of present embodiment, is pasted on automobile cavity wall by the adhesive layer 10, adhered layer is in
Sheet has flexibility, can be become with metal plate Adjusting Shape product form according to the shape at body of a motor car cavity gap
Change, and own material stress because have first skeleton 20 and second skeleton 30 composition iron wire web frame support without
It can be destroyed, and be filled with the sound absorbing layer 70, institute in the gap before first skeleton 20 and second skeleton 30
Stating sound absorbing layer 70 is glass wool material, and mineral wool belongs to sound-absorbing porous material, has good sound absorbing performance, works as motor racing
When, various sound waves caused by various frictions can be incident on centrifugally glass-wool, and sound wave enters material internal along hole, cause hole
The vibration of air molecule in gap, due to the viscosity resistance and air molecule of air and the friction of pore wall, sound can be converted into thermal energy
And be lost, the effect for improving NVH performance is played, the expanding layer 40 is after the frictional heating because of automobile cavity, to foam
Gap is blocked, obtains and high-speed flow is avoided to scurry into the effect in gap, first skeleton 20 and second skeleton 30 be
Expanding layer 40 is pre-buried in advance when being molded, and avoids deforming after the completion of injection molding, and evade the effect of the sagging in foaming process.
Further, four seamed edges of second skeleton 30 are bent towards the direction of first skeleton 20.In this implementation
In the embodiment of mode, because the sound absorbing layer 70 is packed between first skeleton 20 and second skeleton 30,
Can lead to the problem of and easily slide out, towards 30 bending energy of the second skeleton after the sound absorbing layer 70 is sealed.
Further, the surface layer of first skeleton 20 and second skeleton 30 is zinc-plated.In the reality of present embodiment
It applies in example, because having gap between two skeletons, the problem of unavoidably generating aqueous vapor, get rusty so as to cause iron wire, and zinc is dry
Variation is hardly happened in dry air, in wet air, zinc surface can generate fine and close basic zinc carbonate film, be formed anti-
Cuticula neither destroys the flexibility of iron wire, also enhances the etch-proof performance of iron wire.
Further, the iron wire web frame of first skeleton 20 and second skeleton 30 is prismatic net.In this reality
It applies in the embodiment of mode, the mesh of prismatic net is uniform, and wire side is smooth, weaves succinct and beautiful and generous.
Further, the grid of first skeleton 20 is equal with the sizing grid of second skeleton 30, mesh correspondence,
Net bone is parallel.In the embodiment of present embodiment, the identical grid of size direction be can guarantee as metal plate Adjusting Shape produces
, will not be different with the stress direction of second skeleton 30 because of first skeleton 20 when product shape, and to the expanding layer
The deformation of 40 damaging property.
Further, at least provided with a corresponding through-hole 41 on the surface of the expanding layer 40, and through-hole 41 is through to
The upper surface of the adhesive layer 10, the expansion plastic structure 100 further includes plastic buckle 50, and the plastic buckle 50 is caught in through-hole
In 41.In the embodiment of present embodiment, in use, the plastic buckle 50 in the expanding layer 40 is fixed on body of a motor car
In the hole of cavity, the problem of falling off is caused after being able to solve 10 viscous force of the adhesive layer relaxation.
Further, the expanding layer 40 is high-temperature expansion foamed material.It is described swollen in the embodiment of present embodiment
Swollen layer 40 has selected azo compound as foaming agent, and organic acid obtains uniform in foaming after heated as blowing promotor, decomposes
Rapidly, expansion multiplying power achievees the effect that higher level, in other embodiments, can also use polyvinyls or copolymer tune
Valence foaming agent, crosslinking agent.High-temperature expansion foamed material that thixotropic agent etc. mixes and reach same expansion rear enclosed gap
Effect.
Further, the adhesive layer 10 of pressure sensitive adhesive resin material by being made.In the embodiment of present embodiment,
The adhesive layer 10 supported in this way has sensibility to pressure, and the natural resin in pressure sensitive adhesive resin can be used as tackifier, mention
Relay is stained with vehicle body after the processing performance and expanded by heating of high adhesive layer 10.In other embodiments, the bonding dirt
It can be made of pressure-sensitive adhesion rubber material.
Further, the expanding layer 40 is additionally provided with venthole 42, and venthole 42 prolongs from the lower surface of the expanding layer 40
The upper surface of the expanding layer 40 is extended to, but is not run through, the expansion plastic structure 100 further includes vent plug 60, the vent plug 60
Cooperate with the venthole 42.In the embodiment of present embodiment, after the flat gas of 40 aging of expanding layer, institute can be opened
Vent plug 60 is stated, is inflated from artificial mode by the venthole 42 to the expanding layer 40.
Above disclosed is only a kind of preferred embodiment of the utility model, certainly cannot be practical to limit with this
Novel interest field, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and according to
Equivalent variations made by the utility model claims, still falls within the scope of the utility model.
Claims (9)
1. a kind of expansion plastic structure, which is characterized in that
The expansion plastic structure includes adhesive layer, the first skeleton, the second skeleton, sound absorbing layer and expanding layer, first skeleton with
The adhesive layer is affixed, and is located at the lower section of the adhesive layer, and second skeleton is twined with first skeleton and connect, and is located at institute
The lower section of the first skeleton is stated, and is equipped with gap between first skeleton, first skeleton and second skeleton are
Iron wire web frame, the sound absorbing layer are filled between first skeleton and second skeleton, the expanding layer and described the
Two skeletons are affixed, and are located at the lower section of second skeleton.
2. expansion plastic structure as described in claim 1, which is characterized in that four seamed edges of second skeleton are towards described first
The direction of skeleton is bent.
3. expansion plastic structure as claimed in claim 2, which is characterized in that the surface layer of first skeleton and second skeleton
It is zinc-plated.
4. expansion plastic structure as claimed in claim 3, which is characterized in that the iron wire of first skeleton and second skeleton
Web frame is prismatic net.
5. expansion plastic structure as claimed in claim 4, which is characterized in that the grid of first skeleton and second skeleton
Sizing grid it is equal, mesh is corresponding, net bone is parallel.
6. expansion plastic structure as described in claim 1, which is characterized in that right at least provided with one on the surface of the expanding layer
The through-hole answered, and through-hole is through to the upper surface of the adhesive layer, the expansion plastic structure further includes plastic buckle, the plastics
It is caught in through-hole.
7. expansion plastic structure as described in claim 1, which is characterized in that the expanding layer is high-temperature expansion foamed material.
8. expansion plastic structure as described in claim 1, which is characterized in that the adhesive layer is by pressure sensitive adhesive resin material system
At.
9. expansion plastic structure as described in claim 1, which is characterized in that the expanding layer is additionally provided with venthole, venthole from
The lower surface of the expanding layer extends to the upper surface of the expanding layer, but does not run through, and the expansion plastic structure further includes gas
Plug, the vent plug and the venthole cooperate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821786098.8U CN208963002U (en) | 2018-10-30 | 2018-10-30 | A kind of expansion plastic structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821786098.8U CN208963002U (en) | 2018-10-30 | 2018-10-30 | A kind of expansion plastic structure |
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| Publication Number | Publication Date |
|---|---|
| CN208963002U true CN208963002U (en) | 2019-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821786098.8U Active CN208963002U (en) | 2018-10-30 | 2018-10-30 | A kind of expansion plastic structure |
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| CN (1) | CN208963002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111660903A (en) * | 2020-06-18 | 2020-09-15 | 安徽永锋防护科技股份有限公司 | Light sleeper of automobile and forming process thereof |
-
2018
- 2018-10-30 CN CN201821786098.8U patent/CN208963002U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111660903A (en) * | 2020-06-18 | 2020-09-15 | 安徽永锋防护科技股份有限公司 | Light sleeper of automobile and forming process thereof |
| CN111660903B (en) * | 2020-06-18 | 2022-10-18 | 安徽永锋防护科技股份有限公司 | Light sleeper of automobile and forming process thereof |
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