CN205439916U - Auto plastic tail -gate connection structure - Google Patents
Auto plastic tail -gate connection structure Download PDFInfo
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- CN205439916U CN205439916U CN201521136370.4U CN201521136370U CN205439916U CN 205439916 U CN205439916 U CN 205439916U CN 201521136370 U CN201521136370 U CN 201521136370U CN 205439916 U CN205439916 U CN 205439916U
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- back door
- door body
- outer plaque
- glue
- tail
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Abstract
The utility model relates to an automobile the connection structure of plastics tail -gate. Auto plastic tail -gate connection structure including back door body, and lies in this external outer plaque and outer plaque down gone up of back door, and joint strength through rigid gluey connection, can be guaranteed to back door body and the same plastics material of last outer plaque adoption to be equipped with the interval of polishing on the back door, the connection between making it is more stable. The back door body and the lower outer plaque of different plastics materials are connected through soft glue, can effectively solve because of the different size differences that result in of thermal energy, have increased the reliability of automobile tail -gate.
Description
Technical field
This utility model relates to the attachment structure of a kind of automobile plastic tail-gate.
Background technology
Along with economic growth, automobile is while improving people's living standard, and its fuel oil, discharge also bring immense pressure for energy resource supply, environmental conservation and traffic safety.Automotive light weight technology, as realizing energy-saving and emission-reduction, meets the main path of performance requirement simultaneously, it has also become car industry focus of attention the most also one of core competitiveness becoming each enterprise.So increasing auto parts and components are replaced by the plastics that material is lighter, partial automobile brand has started to use overall plastic tail-gate, but the bonding strength between plastics is the most poor, easily occurs situations such as loosening during use.And the thermal coefficient of expansion between different plastic materials has bigger difference, automobile, in the running environment of different temperatures, time serious, can cause coming off of connecting portion on connecting and composing certain impact between unlike material plastics.
Utility model content
The technical problems to be solved in the utility model is: provides a kind of automobile plastic tail-gate connecting structure, the connection between automobile tail gate body and external ornament can be made more stable, effectively solve the connection difference between different heat expansion coefficient connector.
In order to solve the problems referred to above, the technical solution adopted in the utility model is: automobile plastic tail-gate connecting structure, including back door body, and it is positioned at back door this external upper outer plaque and lower outer plaque, described back door body and lower outer plaque are different plastic materials, and back door body and upper outer plaque are same plastic material；Described upper outer plaque is bonding with back door body by rigid glue, and described lower outer plaque is bonding with back door body by soft glue.
Automobile plastic tail-gate connecting structure as above, further illustrate into, described rigid glue is structure glue, and the thickness of structure glue is 0.1 0.5mm.
Automobile plastic tail-gate connecting structure as above, further illustrate into, described soft glue is double-component PUR glue, and the thickness of double-component PUR glue is 1 4mm.
Automobile plastic tail-gate connecting structure as above, further illustrate into, described back door body and upper outer plaque material are SMC, and lower outer plaque material is PP.
Automobile plastic tail-gate connecting structure as above, further illustrate into, on described back door body, the connection surface with upper outer plaque is provided with polishing interval.
The beneficial effects of the utility model are: back door body and upper outer plaque use same plastic material, are connected by rigid glue, it is possible to ensure bonding strength, and back door is provided with polishing interval, and the connection between being allowed to is more stable.Back door body and the lower outer plaque of different plastic materials are connected by soft glue, can effectively solve the size difference caused because thermal expansion is different, add the reliability of automobile tail gate.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is this utility model assembled view.
Fig. 3 be in Fig. 2 A A to sectional view.
Fig. 4 is B zoomed-in view in Fig. 3.
Fig. 5 is C zoomed-in view in Fig. 3.
In figure: 1, back door body；2, upper outer plaque；3, lower outer plaque；4, rigid glue；5, soft glue；L1 is the thickness of rigid glue；L2 is the thickness of soft glue.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model embodiment is done further details of elaboration.
As shown in Figures 1 to 5, automobile plastic tail-gate connecting structure, including back door body 1, and the upper outer plaque 2 that is positioned at outside back door body 1 and lower outer plaque 3, upper outer plaque 2 is positioned at the top on back door body 1 surface, lower outer plaque 3 is positioned at the bottom on back door body 1 surface, described back door body 1 and lower outer plaque 3 are different plastic materials, back door body 1 and upper outer plaque 2 are same plastic material, back door body 1 and upper outer plaque 2 all use SMC plastic material, lower outer plaque 3 to use PP plastic material；Described upper outer plaque 2 is bonding with back door body 1 by rigid glue 4, and rigid glue 4 preferred version is hard structure glue, and as shown in Figure 4, the thickness L1 of structure glue is 0.1 0.5mm, preferably 0.2mm.By using hard structure glue, it is ensured that upper bonding strength between outer plaque 2 and back door body 1, owing to both use identical plastic material, it is to avoid the difference that thermal expansion causes.Thus the stability being always ensured that between connection.In order to make the connection between back door body 1 and upper outer plaque 2 more stable, on back door body 1, the connection surface with upper outer plaque 2 is provided with polishing interval, polishing interval is matsurface, and polishing interval can be a part for connection surface, it is also possible to be whole connection surface.
Described lower outer plaque 3 is bonding with back door body 1 by soft glue 5.Soft glue 5 is preferably double-component PUR glue, as it is shown in figure 5, the thickness L2 of soft glue glue-line is 1 4mm, thickness is preferably 2.5mm.Owing to back door body 1 and lower outer plaque 3 are different plastic materials, when using soft glue, utilize the toughness of soft glue, can effectively solve the size difference caused because thermal expansion is different, add the reliability of automobile tail gate.Such as, through experiment calculation, SMC and the PP plastic material part of a length of 1m under room temperature, when-30 DEG C or 70 DEG C, the dimensional change differential of two kinds of parts is 5-6mm, after using soft glue, owing to soft glue exists toughness, dimensional change differential can be offset, make not loosen, remain connection, enhance stability and the reliability of automobile.
This utility model is not limited to examples detailed above, and in claims limited range of the present utility model, various deformation or amendment that those skilled in the art can make without creative work are all protected by this patent.
Claims (5)
1. automobile plastic tail-gate connecting structure, including back door body (1), and it is positioned at the outer upper outer plaque (2) of back door body (1) and lower outer plaque (3), it is characterized in that: described back door body (1) and lower outer plaque (3) are different plastic materials, back door body (1) and upper outer plaque (2) are same plastic material；Described upper outer plaque (2) is bonding with back door body (1) by rigid glue (4), and described lower outer plaque (3) is bonding with back door body by soft glue (5).
Automobile plastic tail-gate connecting structure the most according to claim 1, it is characterised in that: described rigid glue (4) is structure glue, and the thickness of structure glue is 0.1 0.5mm.
Automobile plastic tail-gate connecting structure the most according to claim 2, it is characterised in that: described soft glue (5) is double-component PUR glue, and the thickness of double-component PUR glue is 1 4mm.
Automobile plastic tail-gate connecting structure the most according to claim 3, it is characterised in that: described back door body (1) and upper outer plaque (2) material are SMC, and lower outer plaque (3) material is PP.
Automobile plastic tail-gate connecting structure the most as claimed in any of claims 1 to 4, it is characterised in that: the upper connection surface with upper outer plaque (2) of described back door body (1) is provided with polishing interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521136370.4U CN205439916U (en) | 2015-12-31 | 2015-12-31 | Auto plastic tail -gate connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521136370.4U CN205439916U (en) | 2015-12-31 | 2015-12-31 | Auto plastic tail -gate connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205439916U true CN205439916U (en) | 2016-08-10 |
Family
ID=56599351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521136370.4U Active CN205439916U (en) | 2015-12-31 | 2015-12-31 | Auto plastic tail -gate connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205439916U (en) |
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2015
- 2015-12-31 CN CN201521136370.4U patent/CN205439916U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |