Automobile fender support and automobile

Abstract

The present application relates to the technical field of automobile body assembly parts, and in particular to an automobile fender support, wherein the automobile comprises a body frame and a fender, the fender is mounted on the body frame, and there is a gap between the body frame and the fender, the support is used to be arranged in the gap, and is characterized in that the support comprises: a supporting portion; and a connecting portion, at least one connecting portion is provided and fixed to at least one side of the supporting portion, the connecting portion is used to be fixed to the fender and / or the body frame on the side away from the supporting portion, and the melting point of the connecting portion is lower than the melting point of the supporting portion. The invention solves the problem in the prior art that there is a height difference between the overlapping surfaces of the fender and the side A-pillar of the body frame, which makes it difficult to install the fender and the body frame locally, and the fender is prone to collapse when subjected to local force.

Description

Technical Field

[0001] The present application relates to the technical field of automobile body assembly parts, and in particular to an automobile fender support and an automobile. Background Art

[0002] In the A-pillar area of ​​some existing automobiles, due to the height difference between the overlapping surface of the fender and the side A-pillar of the body frame, the local installation of the fender and the body frame is difficult, the stability of the fender and the body frame is poor after overlapping, and there is space between the bottom of the fender and the body frame, which makes the fender prone to collapse under local force.

[0003] In this regard, patent CN206797492U discloses a common solution in the industry, which is to stick a patch on the inner side of the fender near the A-pillar area, fix it to the fender after high-temperature baking, and provide some support for the fender, thus solving the problem of insufficient rigidity.

[0004] However, this patch is prone to deformation when baked at high temperature, and after cooling and fixing, there is a difference between the required support volume designed in advance, and the support effect is poor. Summary of the invention

[0005] Based on this, a car fender support is provided to solve the problems in the prior art that there is a height difference between the overlapping surfaces of the fender and the side A-pillar of the vehicle body frame, which makes it difficult to install the fender locally on the vehicle body frame, and the fender is unstable after overlapping the vehicle body frame, and the fender is prone to collapse locally due to stress.

[0006] On the one hand, a car fender support is provided, wherein the car comprises a body frame and a fender, the fender is mounted on the body frame, and a gap is provided between the body frame and the fender, the support member is used to be arranged in the gap, and is characterized in that the support member comprises: a supporting portion; and a connecting portion, at least one connecting portion is provided and fixed to at least one side of the supporting portion, the connecting portion is used to be fixed to the fender and / or the body frame on a side away from the supporting portion, and the melting point of the connecting portion is lower than the melting point of the supporting portion.

[0007] In one embodiment, two connecting parts are provided, the two connecting parts are fixed on opposite sides of the supporting part, and the two connecting parts are respectively used to be fixed on the fender and the vehicle body frame on one side away from the supporting part.

[0008] In one of the embodiments, the connecting portion is fixed to the fender and / or the vehicle body frame by painting and baking; the melting point of the supporting portion is higher than the painting and baking temperature, and the melting point of the connecting portion is lower than the painting and baking temperature.

[0009] In one embodiment, the melting point of the supporting portion is higher than 170°C; the melting point of the connecting portion is lower than 170°C.

[0010] In one embodiment, the supporting part is a polyamide component, and the connecting part is a butyl rubber component.

[0011] In one embodiment, the supporting portion and the connecting portion are in a rectangular parallelepiped shape, and the connecting portion completely covers the supporting portion with their edges aligned.

[0012] In one embodiment, the support portion and the end of the connection portion are chamfered.

[0013] In another aspect, a vehicle is provided, comprising:

[0014] Body frame;

[0015] A fender, wherein the fender is mounted on the vehicle body frame, and a gap is provided between the vehicle body frame and the fender;

[0016] A support member, wherein the support member is any one of the support members described above, and the support member is arranged in the gap.

[0017] In one of the embodiments, an abutment groove is provided on the vehicle body frame, and the end of the fender abuts against a side wall of the abutment groove.

[0018] In one of the embodiments, the fender is protruded toward a side away from the bottom wall of the abutment groove.

[0019] The above-mentioned automobile fender support, wherein the melting point of the connection part is lower than that of the support part, the connection part is bonded and fixed to the body frame and / or fender after melting, the support part is stably fixed to the body frame and the fender, the support part has a high melting point and is not easily deformed by baking, and supports the fender after painting. It can quickly solve the problem of poor stability caused by the surface difference between the lap surface of the fender and the body frame after installation, improve the body size accuracy and stability, and has small deformation after painting, low development and use costs, simple structure, and easy installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a structural schematic diagram of a fender support member in Embodiment 1;

[0021] Figure 2 A schematic diagram of the installation position of a fender support member in Embodiment 1;

[0022] Figure 3 It is a schematic diagram of the installation of the fender and the vehicle body frame in another embodiment 2.

[0023] Reference numerals: 1. supporting portion; 2. connecting portion; 3. vehicle body frame; 31. abutting groove; 4. fender. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] It should be noted that the illustrations provided in this embodiment are only used to illustrate the basic concept of the present invention in a schematic manner. Therefore, the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0026] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0027] The directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "middle", "longitudinal", "lateral", "horizontal", "inner", "outer", "radial", "circumferential" and the like in this specification are based on the directions or positional relationships shown in the drawings and are only for the convenience of simplifying the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In some vehicle models, an abutment groove for installing the fender is provided at the side A-pillar of the body frame. The depth of the abutment groove is slightly greater than the thickness of the fender, which causes a height difference between the overlapping surfaces of the fender and the side A-pillar of the body frame, resulting in difficulty in the local installation of the fender and the body frame, and poor stability after the fender and the body frame are overlapped. In addition, since the fender is lower than the A-pillar side of the body frame, there is space between the bottom of the fender and the body frame, causing the fender to collapse easily due to local force.

[0029] Based on this, the utility model supports the fender by fixing a support member at the gap between the fender and the body frame, but the support member made of metal can only be fixed by welding or screws, which is inconvenient to operate and easily causes damage to the body structure.

[0030] Try to use plastic products as support parts so that they can be fixed between the body frame and the fender through painting and baking, such as butyl rubber blocks as support parts. However, after painting and baking, although the butyl rubber blocks can melt and bond and fix to the fender and body frame, their own shape is deformed and there is a big difference from the pre-designed shape, resulting in poor support effect. Although the complete polyamide block has good shape retention ability, it cannot be fixed to the fender and body frame because its melting point is higher than the melting point during painting.

[0031] Based on this, the utility model attempts to use polyamide blocks and butyl rubber blocks in coordination, using the polyamide blocks with strong shape retention ability as the supporting body and the butyl rubber blocks that can melt at the coating temperature as the connecting parts, thereby achieving the effects of supporting the fender and connecting at the same time.

[0032] Example 1

[0033] Reference Figure 1 and Figure 2 , an automobile fender support, comprising a support portion 1 and at least one connecting portion 2, wherein the connecting portion 2 is fixed to the outer wall of the support portion 1. The melting point of the connecting portion 2 is lower than that of the supporting portion 1. During installation, the connecting portion 2 is fixed to the automobile body frame 3 and / or the automobile fender 4 by painting and baking, and the painting and baking temperature is greater than the melting point of the connecting portion 2 but lower than the melting point of the supporting portion 1, so that the entire support fills the space between the fender 4 and the automobile body frame 3, thereby supporting the fender 4.

[0034] In another embodiment, there are two connecting parts 2, which are respectively fixed on opposite sides of the supporting part 1, and the melting point of the connecting parts 2 is lower than that of the supporting part 1. During installation, the supporting member is placed in the gap formed between the fender 4 and the body frame 3, and the connecting parts 2 with a low melting point are melted by painting and baking, one of the connecting parts 2 is fixed to the body frame 3 of the car, and the other connecting part 2 is fixed to the fender 4 of the car, so that the entire supporting member fills the space between the fender 4 and the body frame 3, thereby improving the connection effect between the supporting member and the fender 4 and the body frame 3, while the supporting part 1 with a high melting point is not melted to provide supporting force, thereby supporting the fender 4.

[0035] In another embodiment, the support part 1 is a component made of polyamide, commonly known as nylon, which is a general term for thermoplastic resins containing repeating amide groups —[NHCO]— on the main chain of the molecule, including PBT, PET, PA6, PA66, etc. It has excellent mechanical properties and is a good material for replacing metals such as steel, iron, and copper with plastic. The melting point of polyamide is 180-280°C, specifically 180°C, 190°C, 200°C, 210°C, 220°C…280°C, etc., and the coating temperature is 170°C. Therefore, during coating, the support part 1 is not easily deformed by baking, thereby providing a more stable support for the fender 4 after coating.

[0036] In another embodiment, the connecting part 2 is a component made of butyl rubber, which is a synthetic rubber synthesized from isobutylene and a small amount of isoprene. It has excellent air tightness, aging resistance and good chemical stability. The melting point of butyl rubber is usually around 80°C, which is lower than the temperature of 170°C during painting. Therefore, the connecting part 2 can be abutted against the body frame 3 and fender 4 of the car and then painted and baked, so that the connecting part 2 is melt-bonded to the body frame 3 and fender 4 of the car, thereby fixing the support part 1 between the body frame 3 and fender 4 of the car. In other embodiments, the connecting part 2 can also be made of other low-melting-point hot-melt adhesives with a melting point lower than 170°C, such as thermoplastic polyurethane (TPU).

[0037] In another embodiment, the supporting portion 1 and the connecting portion 2 are in the shape of a rectangular parallelepiped as a whole, and the two connecting portions 2 are adhesively fixed on the two largest opposite sides of the supporting portion 1. In other embodiments, the two connecting portions 2 can also be fixed on other opposite sides of the supporting portion 1.

[0038] In another embodiment, the connecting portion 2 completely covers the supporting portion 1 and the edges are aligned, so that the overall structure of the supporting member is flatter while ensuring the maximum connection strength.

[0039] In another embodiment, the end edges of the support portion 1 and the connection portion 2 are both chamfered to reduce the possibility of scratching objects or people.

[0040] The implementation principle of this embodiment: During installation, one of the connecting parts 2 is abutted against the abutment groove 31 of the vehicle body frame 3, and the other connecting part 2 is abutted against the fender 4 of the car, so that the entire support member fills the space between the fender 4 and the vehicle body frame 3. Then the painting and baking are carried out, the connecting part 2 is melt-bonded to the vehicle body frame 3 and the fender 4, and the supporting part 1 is fixed between the vehicle body frame 3 and the fender 4. The supporting part 1 has a high melting point and is not easily deformed by baking, and supports the fender 4 after painting. The problem of poor stability caused by the surface difference between the lap surface of the fender 4 and the vehicle body frame 3 after installation is quickly solved, the dimensional accuracy and stability of the vehicle body are improved, and the deformation after painting is small. The connecting part 2 of butyl rubber has low development and use costs, simple structure, and easy installation.

[0041] Example 2

[0042] Reference Figure 2 and Figure 3 A car includes a car body and a support member, wherein the car body includes a car frame 3 and a fender 4, and an abutment groove 31 is provided at the A-pillar of the car frame 3 for mounting the fender 4. The depth of the abutment groove 31 is greater than the thickness of the fender 4, so that there is a height difference between the overlapping surfaces of the fender 4 and the side A-pillar of the car frame 3. The fender 4 is convex toward the side away from the bottom wall of the abutment groove 31, which not only has a smoother and more harmonious appearance, but also helps to disperse the local force of the fender 4 and improve the structural stability of the fender 4.

[0043] Reference Figure 1 and Figure 2 The support member includes a rectangular support portion 1 and two connecting portions 2. The two connecting portions 2 are respectively fixed on the two largest opposite sides of the support portion 1. In other embodiments, the two connecting portions 2 can also be fixed on other opposite sides of the support portion 1. During installation, one of the connecting portions 2 is fixed to the body frame 3 of the car, and the other connecting portion 2 is fixed to the fender 4 of the car, so that the entire support member fills the space between the fender 4 and the body frame 3, thereby supporting the fender 4.

[0044] The supporting portion 1 is a polyamide component, and the melting point of polyamide is 180-280°C, specifically 180°C, 190°C, 200°C, 210°C, 220°C...280°C, etc., while the painting temperature is 170°C. Therefore, during painting, the supporting portion 1 is not easily deformed by baking, and thus plays the role of supporting the fender 4 after the painting is baked and fixed.

[0045] The connecting part 2 is a butyl rubber component, and the melting point of butyl rubber is usually around 80°C, which is lower than the temperature of 170°C during painting. Therefore, the connecting part 2 can be abutted against the body frame 3 and fender 4 of the automobile and then painted and baked, so that the connecting part 2 is melted and bonded to the body frame 3 and fender 4 of the automobile, thereby fixing the supporting part 1 between the body frame 3 and fender 4 of the automobile.

[0046] During installation, one of the connecting parts 2 is abutted against the abutment groove 31 of the vehicle body frame 3, and the other connecting part 2 is abutted against the fender 4 of the car, so that the entire support member fills the space between the fender 4 and the vehicle body frame 3. Then the painting and baking are carried out, the connecting part 2 is melt-bonded to the vehicle body frame 3 and the fender 4, and the supporting part 1 is fixed between the vehicle body frame 3 and the fender 4. The supporting part 1 has a high melting point and is not easily deformed by baking, and supports the fender 4 after painting. The problem of poor stability caused by the surface difference between the lap surface of the fender 4 and the vehicle body frame 3 after installation is quickly solved, the dimensional accuracy and stability of the vehicle body are improved, and the deformation after painting is small. The connecting part 2 of butyl rubber has low development and use costs, simple structure, and easy installation.

[0047] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A car fender support member, the car comprising a body frame (3) and a fender (4), the fender (4) being mounted on the body frame (3), and a gap being provided between the body frame (3) and the fender (4), the support member being arranged in the gap, characterized in that: The support member comprises: A support portion (1); and A connecting portion (2), at least one of the connecting portions (2) is provided and fixed to at least one side of the supporting portion (1), the side of the connecting portion (2) facing away from the supporting portion (1) is used to be fixed to the fender (4) and / or the vehicle body frame (3), and the melting point of the connecting portion (2) is lower than the melting point of the supporting portion.

2. The support member according to claim 1, characterized in that Two connecting parts (2) are provided, the two connecting parts (2) are fixed on opposite sides of the supporting part (1), and the sides of the two connecting parts (2) facing away from the supporting part (1) are respectively used for fixing on the fender (4) and the vehicle body frame (3).

3. The support member according to claim 1, characterized in that The connecting portion (2) is fixed to the fender (4) and / or the vehicle body frame (3) by painting and baking; the melting point of the supporting portion (1) is higher than the painting and baking temperature, and the melting point of the connecting portion (2) is lower than the painting and baking temperature.

4. The support member according to claim 1, characterized in that The melting point of the supporting part (1) is higher than 170°C; the melting point of the connecting part (2) is lower than 170°C.

5. The support member according to claim 1, characterized in that The supporting part (1) is a polyamide component, and the connecting part (2) is a butyl rubber component.

6. The support member according to claim 5, characterized in that The supporting portion (1) and the connecting portion (2) are in the shape of a rectangular parallelepiped; the connecting portion (2) completely covers the supporting portion (1) and the edges thereof are aligned.

7. The support member according to claim 6, characterized in that The ends of the support portion (1) and the connection portion (2) are chamfered.

8. A car, characterized in that: include: Body frame (3); A fender (4), wherein the fender (4) is mounted on the vehicle body frame (3), and a gap is provided between the vehicle body frame (3) and the fender (4); A support member, wherein the support member is a support member as described in any one of claims 1 to 7, and the support member is arranged in the gap.

9. The automobile according to claim 8, characterized in that The vehicle body frame (3) is provided with an abutment groove (31), and the end of the fender (4) abuts against the side wall of the abutment groove (31).

10. The automobile according to claim 9, characterized in that The fender (4) protrudes toward a side away from the bottom wall of the abutment groove (31).

Images