CN117901775A - PET foam structure on automobile roof - Google Patents
PET foam structure on automobile roof Download PDFInfo
- Publication number
- CN117901775A CN117901775A CN202410036561.0A CN202410036561A CN117901775A CN 117901775 A CN117901775 A CN 117901775A CN 202410036561 A CN202410036561 A CN 202410036561A CN 117901775 A CN117901775 A CN 117901775A
- Authority
- CN
- China
- Prior art keywords
- groove
- pet foam
- lower shell
- hole
- upper shell
- 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
- 239000006260 foam Substances 0.000 title claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000010097 foam moulding Methods 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims description 29
- 239000007924 injection Substances 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 11
- 238000010276 construction Methods 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 9
- 230000010354 integration Effects 0.000 abstract description 2
- 229920002635 polyurethane Polymers 0.000 description 10
- 239000004814 polyurethane Substances 0.000 description 10
- 238000005457 optimization Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention belongs to the technical field of automotive interior structures, and particularly relates to a PET foam structure for an automotive ceiling. The novel PET foam molding embedded component comprises an upper shell and a lower shell, wherein skylight through holes I are symmetrically formed in the upper shell, skylight through holes II are formed in the lower shell corresponding to the skylight through holes I, and PET foam molding embedded components are matched between the upper shell and the lower shell. According to the invention, through the installation of the upper shell and the lower shell, the rapid installation and fixation of the ceiling structure are realized, and the upper shell and the lower shell which are arranged separately can be detached more simply when the vehicle needs to be maintained in the later period; after the upper shell and the lower shell are installed, the PET foam is filled through the material filling holes, and the upper shell and the lower shell can be fully filled in the filling mode, so that the integral integration is better, the characteristics of the PET foam are fully exerted, and the performance of the automobile roof is more excellent.
Description
Technical Field
The invention belongs to the technical field of automotive interior structures, and particularly relates to a PET foam structure for an automotive ceiling.
Background
The interior trim of the roof is an important component of the interior trim of the whole automobile, and the roof of the automobile is generally composed of five parts: roof interior trim panels, roof structures, roof outer panels, liners, and insulating materials. The roof inner decoration plate is covered on the roof structure to provide the inner decoration and heat preservation functions for the roof. The roof structure is then the main support frame of the roof, usually made of steel or other high strength material, to ensure the stability and safety of the vehicle during driving. The roof outer plate is an outer covering layer of the roof and is usually made of metal, plastic or carbon fiber and the like, so that the roof outer plate has the functions of water resistance, wind resistance and attractive appearance. The lining and the insulating material are positioned between the roof inner decorative plate and the roof structure and used for heat insulation and heat preservation and noise reduction.
In the production and manufacture of automobile roofs, polyurethane is widely applied to the manufacture of parts such as automobile seats, steering wheels, instrument panels, interior trim parts and the like, and the characteristics of wear resistance, weather resistance, sound absorption and the like of the polyurethane enable the polyurethane to be an ideal choice of automobile interior trim materials. However, in the molding of polyurethane, it is necessary to inject the polyurethane melted by heating into a mold, and take out the polyurethane after cooling and solidifying the polyurethane. The molding mode is the most commonly used molding mode, but the molding mode needs to install the molded polyurethane into the ceiling of the automobile, the efficiency of the installation mode is low, the molding mode is difficult to adapt to the high-efficiency production requirement of the modern automobile, and in addition, the assembled polyurethane material can have gaps with the installation position, so that the heat-insulation and sound-insulation capabilities of the polyurethane material are weakened in an intangible way; in order to solve the problems, a PET foam structure for an automobile roof is provided.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a PET foam structure in an automobile ceiling; through the institutional advancement for at the direct shaping of ceiling, the wholeness is better.
The invention provides a PET foam in an automobile ceiling structure, which comprises an upper shell and a lower shell, wherein skylight through holes I are symmetrically formed in the upper shell, skylight through holes II are formed in the lower shell corresponding to the skylight through holes I, and a PET foam molding embedded assembly is matched between the upper shell and the lower shell; the PET foam molding embedded assembly comprises a first groove, a second groove and a third groove, wherein the first groove, the second groove and the third groove are arranged on one side, close to the lower shell, of the upper shell and uniformly arranged around a skylight through hole, a first material injection hole, a second material injection hole and a third material injection hole are uniformly formed in the lower shell, a high-sealing connecting mechanism is arranged between the upper shell and the lower shell, and PET foam is arranged in the first groove, the second groove and the third groove.
Further, the high-sealing connecting mechanism comprises threaded columns which are symmetrically arranged in the first groove, the second groove and the third groove, the lower shell is provided with threaded holes corresponding to the threaded columns, the threaded holes are internally connected with bolts in a threaded mode, and the bolts are connected with the threaded columns in a threaded mode.
Further, the upper shell is provided with a surrounding baffle corresponding to the first skylight through hole, and a plurality of positioning holes are uniformly formed in the surrounding baffle.
Further, the lower shell is provided with a positioning rod corresponding to the positioning hole, and the positioning rod is mutually matched with the positioning hole.
Further, the enclosure is a rubber material.
Further, the upper shell and the lower shell are provided with connecting plates in a matched mode.
Further, sealing plugs are arranged at the openings of the first material injection hole, the second material injection hole and the third material injection hole.
Further, the upper shell is provided with a partition plate between the first groove and the second groove and between the second groove and the third groove.
The invention has the beneficial effects that:
According to the invention, through the installation of the upper shell and the lower shell, the rapid installation and fixation of the ceiling structure are realized, and the upper shell and the lower shell which are arranged separately can be detached more simply when the vehicle needs to be maintained in the later period; after the upper shell and the lower shell are installed, the PET foam is filled through the material filling holes, and the upper shell and the lower shell can be fully filled in the filling mode, so that the integral integration is better, the characteristics of the PET foam are fully exerted, and the performance of the automobile roof is more excellent.
Drawings
FIG. 1 is a top view of a PET foam of the present invention in an automotive roof construction.
Fig. 2 is a bottom view of a PET foam of the present invention in an automotive roof structure.
Fig. 3 is a top exploded view of a PET foam of the present invention in an automotive roof structure.
Fig. 4 is a bottom exploded view of a PET foam of the present invention in an automotive roof structure.
As shown in the figure:
1. the upper shell, 2, the lower shell, 3, skylight through holes I, 4, skylight through holes II, 5, grooves I, 6, grooves II, 7, grooves III, 8, injection holes I, 9, injection holes II, 10, injection holes III, 11, threaded columns, 12, threaded holes, 13, bolts, 14, enclosing baffles, 15, positioning holes, 16, positioning rods, 17, connecting plates, 18, sealing plugs, 19 and partition plates.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Please refer to the accompanying drawings:
A PET foam in an automobile roof structure comprises an upper shell 1 and a lower shell 2, wherein a first skylight through hole 3 is symmetrically formed in the upper shell 1, a second skylight through hole 4 is formed in the lower shell 2 corresponding to the first skylight through hole 3, and the first skylight through hole 3 and the second skylight through hole 4 can meet the requirement of installation of a later skylight; a PET foam molding embedded component is matched between the upper shell 1 and the lower shell 2; the PET foam molding embedded assembly comprises a first groove 5, a second groove 6 and a third groove 7 which are positioned on one side of the upper shell 1 close to the lower shell 2 and uniformly arranged around the first skylight through hole 3, wherein a partition plate 19 is arranged between the first groove 5 and the second groove 6 and between the second groove 6 and the third groove 7 of the upper shell 1, the partition plate 19 can effectively separate the first groove 5, the second groove 6 and the third groove 7, and the PET foam dispersion is ensured to be more uniform when PET foam injection molding is carried out; the lower shell 2 is internally and uniformly provided with a first material injection hole 8, a second material injection hole 9 and a third material injection hole 10 corresponding to the first groove 5, the second groove 6 and the third groove 7, a high-sealing connecting mechanism is arranged between the upper shell 1 and the lower shell 2, and PET foam is arranged in the first groove 5, the second groove 6 and the third groove 7; the PET foam is injected into the first groove 5, the second groove 6 and the third groove 7 through the first injection hole 8, the second injection hole 9 and the third injection hole 10, and then the PET foam is expanded by adding special gas into the PET foam in the injection process to form a foam structure, wherein the gas can be carbon dioxide gas, so that a light, heat-insulating and sound-absorbing PET foam product can be manufactured.
As a technical optimization scheme of the invention, the high-sealing connecting mechanism comprises threaded columns 11 which are symmetrically arranged in a first groove 5, a second groove 6 and a third groove 7, a threaded hole 12 is arranged on the lower shell 2 corresponding to the threaded column 11, a bolt 13 is arranged in the threaded hole 12 in a threaded connection manner, and the bolt 13 is in threaded connection with the threaded column 11; through the connection of the bolts 13, quick and convenient installation and disassembly of the upper case 1 and the lower case 2 can be realized.
As a technical optimization scheme of the invention, the upper shell 1 is provided with the enclosing block 14 corresponding to the first skylight through hole 3, and a plurality of positioning holes 15 are uniformly formed in the enclosing block 14.
As a technical optimization scheme of the invention, the lower shell 2 is provided with a positioning rod 16 corresponding to the positioning hole 15, and the positioning rod 16 is mutually matched with the positioning hole 15; through the grafting of locating hole 15 and locating lever 16, can be in advance through the connection of locating hole 15 and locating lever 16 when the installation of last casing 1 and lower casing 2, make things convenient for faster location screw hole 12 and bolt 13.
As a technical optimization scheme of the invention, the enclosure 14 is made of a rubber material; by the deformability of the rubber material, the enclosure 14 is enabled to provide a better tightness between the upper housing 1 and the lower housing 2.
As a technical optimization scheme of the invention, the upper shell 1 and the lower shell 2 are provided with connecting plates 17 in a matched manner; the connection plate 17 can be fixed to other positions of the vehicle by various connection methods.
As a technical optimization scheme of the invention, sealing plugs 18 are arranged at the openings of the first material injection hole 8, the second material injection hole 9 and the third material injection hole 10; not only can play the role of sealing and isolating, but also can make the appearance more beautiful.
Working principle:
After the upper shell 1 and the lower shell 2 are connected, injecting PET foam into the first groove 5, the second groove 6 and the third groove 7 through the first injection hole 8, the second injection hole 9 and the third injection hole 10, so that the PET foam can fully extend into each position of the upper shell 1 and the lower shell 2; then expanding the PET foam by adding special gas into the PET foam in the injection process to form a foam structure, wherein the gas can be carbon dioxide gas, so that a light, heat-insulating and sound-absorbing PET foam product can be manufactured; the PET foam is a foam material formed by polyethylene glycol terephthalate, has the characteristics of light weight, durability, water resistance, insulation, corrosion resistance and the like, and is commonly used in the fields of packaging, heat preservation, sound insulation, sound absorption and the like;
The invention and its embodiments have been described above with no limitation, and the specific embodiments are shown as only one of the embodiments of the invention, and the actual structure is not limited thereto. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (8)
1. PET foam is at car roof structure, includes casing and lower casing, its characterized in that: the upper shell is symmetrically provided with a first skylight through hole, the lower shell is provided with a second skylight through hole corresponding to the first skylight through hole, and a PET foam molding embedded assembly is matched between the upper shell and the lower shell; the PET foam molding embedded assembly comprises a first groove, a second groove and a third groove, wherein the first groove, the second groove and the third groove are arranged on one side, close to the lower shell, of the upper shell and uniformly arranged around a skylight through hole, a first material injection hole, a second material injection hole and a third material injection hole are uniformly formed in the lower shell, a high-sealing connecting mechanism is arranged between the upper shell and the lower shell, and PET foam is arranged in the first groove, the second groove and the third groove.
2. The PET foam in automotive roof construction of claim 1, wherein: the high-sealing connecting mechanism comprises threaded columns which are symmetrically arranged in the first groove, the second groove and the third groove, a threaded hole is formed in the lower shell corresponding to the threaded column, a bolt is arranged in the threaded hole in a threaded connection mode, and the bolt is in threaded connection with the threaded column.
3. A PET foam in an automotive roof structure according to claim 2, wherein: the upper shell is provided with a surrounding baffle corresponding to the first skylight through hole, and a plurality of positioning holes are uniformly formed in the surrounding baffle.
4. A PET foam in an automotive roof structure according to claim 3, wherein: the lower shell is provided with a locating rod corresponding to the locating hole, and the locating rod is mutually matched with the locating hole.
5. The PET foam in automotive headliner structure of claim 4, wherein: the enclosure is made of a rubber material.
6. The PET foam in automotive roof construction of claim 1, wherein: the upper shell and the lower shell are provided with connecting plates in a matched mode.
7. The PET foam in automotive roof construction of claim 1, wherein: and sealing plugs are arranged at the openings of the first material injection hole, the second material injection hole and the third material injection hole.
8. The PET foam in automotive roof construction of claim 1, wherein: and the upper shell is provided with a baffle plate between the first groove and the second groove and between the second groove and the third groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410036561.0A CN117901775A (en) | 2024-01-10 | 2024-01-10 | PET foam structure on automobile roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410036561.0A CN117901775A (en) | 2024-01-10 | 2024-01-10 | PET foam structure on automobile roof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117901775A true CN117901775A (en) | 2024-04-19 |
Family
ID=90686416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410036561.0A Pending CN117901775A (en) | 2024-01-10 | 2024-01-10 | PET foam structure on automobile roof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117901775A (en) |
-
2024
- 2024-01-10 CN CN202410036561.0A patent/CN117901775A/en active Pending
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication |