Adhesive empennage blade and automobile

Abstract

The embodiment of the utility model provides an adhesive empennage blade and an automobile, the adhesive empennage blade comprises an upper blade and a lower blade which are buckled up and down, an installation support used for being connected with an empennage transmission mechanism on an automobile back door framework is embedded in the lower blade, and the upper blade and the lower blade are fixed in an adhesive mode and connected in a fastened mode through a screw joint piece. Slight slippage caused by single mechanical connection can be avoided, and the overall rigidity of the empennage blade is effectively improved; the front edge of the upper blade is provided with a flange used for being connected with the lower blade, and the appearance offset printing problem caused by the fact that a bonding area is located on the back face of the appearance can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of automobiles, in particular to an adhesive tail wing blade and an automobile. Background Art

[0002] With the development of automobile technology, automobile lightweighting has become an important development trend, but a car that is too light can easily lead to insufficient grip when driving at high speeds, which reduces the controllability of the entire vehicle and may even cause the vehicle to lose control and cause a traffic accident in serious cases. For this reason, the tail wing technology originally used in racing cars has been further developed and upgraded to a more intelligent electric tail wing. The electric tail wing can automatically adjust its position according to the vehicle speed. When the vehicle is driving at a low speed, the tail wing is closed to reduce wind resistance and fuel consumption; when the vehicle is driving at a high speed, the tail wing is opened to improve the aerodynamic performance of the vehicle, enhance the controllability of the vehicle and the safety of high-speed driving.

[0003] The common assembly method of existing tail wing blades is to achieve mechanical connection between the upper and lower blades of the tail wing by screwing and clamping. However, due to the single fixing point of the tail wing blades using this assembly method, the upper and lower blades are prone to slight slippage when subjected to force, resulting in low overall stiffness of the blades. During the actual driving process of the vehicle, under the action of loading forces such as wind resistance, the tail wing blades are easily deformed by force, making it difficult to achieve ideal aerodynamic performance. Utility Model Content

[0004] In view of this, an embodiment of the utility model provides a glued tail wing blade and a car to solve the technical problem that the existing car tail wing blade has a low overall stiffness due to a single fixing point.

[0005] The utility model provides an adhesive tail blade, comprising an upper blade and a lower blade that are buckled up and down, the upper blade is fixed to the lower blade by bonding and fastened by a screw connection, and the lower blade is embedded with a mounting bracket for connecting with a tail transmission mechanism on a car back door frame;

[0006] Among them, the front edge of the upper blade is provided with a flange abutting against the front edge of the lower blade, and the flange is bonded and fixed to the front edge of the lower blade and fastened by a screw joint; the rear edge of the lower blade is provided with a connecting portion connected to the rear edge of the upper blade, the lower end of the connecting portion is fixedly connected to the upper surface of the lower blade, and the upper end of the connecting portion is bent to form a transverse section, and the transverse section abuts against the lower surface of the upper blade and is bonded and fixed to the upper blade.

[0007] Optionally, the screw connection includes a self-tapping screw and a U-shaped spring leaf nut, and a plurality of the U-shaped spring leaf nuts are arranged on the flange at intervals along its length direction. The self-tapping screw passes through the front edge of the lower blade and the flange and is threadedly connected to the U-shaped spring leaf nut.

[0008] Optionally, the upper blade and the lower blade are bonded and fixed by two-component polyurethane glue.

[0009] Optionally, two mounting brackets are symmetrically embedded on the lower blade, and the two mounting brackets are arranged in an outward eight-shaped shape.

[0010] Optionally, a tolerance adjuster is pre-installed on the mounting point of the mounting bracket.

[0011] Optionally, height adjustment nuts are respectively provided at the middle part and both side edges in the length direction of the lower blade, and the height adjustment nuts are threadedly connected to the lower blade.

[0012] Optionally, a plurality of buffer pads are installed at intervals along the length direction of the rear edge of the lower blade.

[0013] Optionally, a doghouse structure is provided on the upper surface of the lower blade.

[0014] Meanwhile, an embodiment of the utility model further provides a car, which comprises the glued tail wing blade as described above.

[0015] The embodiments of the present utility model have the following beneficial effects:

[0016] 1. The upper blade and the lower blade are bonded and fixed and fastened with screws to avoid slight slippage caused by a single mechanical connection, effectively improving the overall rigidity of the tail blade, thereby achieving ideal aerodynamic performance;

[0017] 2. A flange is set on the front edge of the upper blade to connect with the lower blade to avoid the appearance offset problem caused by the bonding area being located on the back of the appearance; at the same time, a two-component polyurethane glue with a high elongation rate is used to reduce the appearance offset problem caused by the thermal expansion of the material;

[0018] 3. The two mounting brackets embedded on the lower blade are arranged in an outward-facing 8-shaped pattern, which has a wider radiation surface than the tail blade and can effectively improve the dimensional stability of the tail blade when installed;

[0019] 4. Height adjustment nuts are respectively arranged in the middle and both side edges of the lower blade in the length direction, and the height adjustment nuts are used as supports to prevent the upper blade from deforming and collapsing under the action of loading forces such as wind resistance;

[0020] 5. A doghouse structure is set on the upper surface of the lower blade. The doghouse structure can play a supporting role between the upper blade and the lower blade, thereby greatly improving the overall stiffness of the tail blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A top view of the glued tail blade in the embodiment of the utility model;

[0023] Figure 2 A bottom view of the glued tail blade in the embodiment of the utility model;

[0024] Figure 3 for Figure 2 AA section view;

[0025] Figure 4 for Figure 2 BB cross-sectional view;

[0026] Figure 5 for Figure 2 CC section view;

[0027] Figure 6 for Figure 2 DD cross-sectional view;

[0028] Figure 7 This is a schematic diagram of gluing the upper blade in the embodiment of the utility model;

[0029] The numbers in the figure represent:

[0030] 1. Upper blade; 11. Flanging; 2. Lower blade; 21. Connecting part; 22. Doghouse structure; 3. Glue; 4. Self-tapping screw; 5. U-shaped spring nut; 6. Mounting bracket; 7. Tolerance adjuster; 8. Buffer pad; 9. Height adjustment nut. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model. In the utility model, in the absence of contrary instructions, the directional words used, such as "upper", "lower", "front", "back", etc., generally refer to the orientation or position relationship of the device in actual use or working state, specifically the drawing direction in the accompanying drawings.

[0032] See also Figure 1-Figure 6 As shown, an embodiment of the utility model provides an adhesive tail wing blade, which includes an upper blade 1 and a lower blade 2 that are buckled together. The upper blade 1 and the lower blade 2 are adhesively fixed and fastened together by screw connectors, which can avoid slight slippage caused by a single mechanical connection and effectively improve the overall stiffness of the tail wing blade, thereby achieving ideal aerodynamic performance.

[0033] Furthermore, in the embodiment of the utility model, the front edge of the upper blade 1 is provided with a flange 11 that abuts against the front edge of the lower blade 2. The flange 11 is bonded and fixed to the front edge of the lower blade 2 and fastened by a screw connection, which can avoid the appearance offset problem caused by the bonding area being located on the back of the appearance; the rear edge of the lower blade 2 is provided with a connecting portion 21 connected to the rear edge of the upper blade 1, and the lower end of the connecting portion 21 is fixedly connected to the upper surface of the lower blade 2 by means of integral molding, and the upper end of the connecting portion 21 is bent to form a transverse section, which abuts against the lower surface of the upper blade 1 and is bonded and fixed to the upper blade 1. When bonding the upper blade 1 and the lower blade 2, it is best to use a glue 3 with a high elongation such as a two-component polyurethane glue to reduce the appearance offset problem caused by the thermal expansion of the material.

[0034] For reference, Figure 3 As shown, the screw connection in the embodiment of the utility model includes a self-tapping screw 4 and a U-shaped spring nut 5, and a plurality of U-shaped spring nuts 5 are arranged on the flange 11 at intervals along its length direction. A plurality of connecting holes for the self-tapping screw 4 to pass through are correspondingly opened on the front edge of the lower blade 2 and the flange 11, so that the self-tapping screw 4 can pass through the front edge of the lower blade 2 and the flange 11 and be threadedly connected with the U-shaped spring nut 5, thereby fixing the flange 11 and the front edge of the lower blade 2 together.

[0035] The lower blade 2 is embedded with a mounting bracket 6 by injection molding. The tail blade can be connected to the tail transmission mechanism (not shown in the figure) on the rear door frame of the car through the mounting bracket 6, so as to drive the tail blade to open or close through the tail transmission mechanism. Furthermore, the embodiment of the utility model symmetrically embeds two mounting brackets 6 on the lower blade 2. The two mounting brackets 6 are arranged in an outward eight-shaped shape, which has a wider radiation surface than the tail blade, and can effectively improve the dimensional stability of the tail blade when installed on the vehicle. Figure 2 , Figure 4 As shown, a tolerance adjuster 7 may be pre-installed on the mounting point of the mounting bracket 6 to eliminate assembly deviations caused by instability of the mounting surface of the tail transmission mechanism due to process limitations.

[0036] like Figure 2 , Figure 5As shown, a plurality of buffer pads 8 are installed at intervals along the length direction of the rear edge of the lower blade 2. The buffer pads 8 can effectively absorb the vibration of the tail blade caused by wind pressure and prevent the vibration from being transmitted to the car tail door frame to generate vibration noise.

[0037] like Figure 2 , Figure 6 As shown, height adjustment nuts 9 are respectively provided in the middle and both side edges in the length direction of the lower blade 2. The height adjustment nuts 9 are threadedly connected to the lower blade 2, which can support the upper blade 1 to prevent the upper blade 1 from deforming and collapsing under the action of loading forces such as wind resistance.

[0038] like Figure 3 , Figure 5 , Figure 6 As shown, a doghouse structure 22 is also provided on the upper surface of the lower blade 2. The doghouse structure 22 can play a supporting role between the upper blade 1 and the lower blade 2, thereby greatly improving the overall stiffness of the tail blade and making it less likely to be deformed by external forces.

[0039] The specific assembly process of the above-mentioned glued tail blade is as follows:

[0040] (1) Install the U-shaped spring nut 5 on the flange 11 of the upper blade 1; (2) Apply glue on the lower surface of the upper blade 1 and the flange 11 to ensure the bonding and fixing effect. Figure 7 As shown, it is best to apply glue along the entire outer contour of the upper blade 1 to achieve full-circle bonding of the upper blade 1 and the lower blade 2; (3) pre-assemble the lower blade 2 embedded with the mounting bracket 6 and the upper blade 1; (4) install the self-tapping screw 4, and the self-tapping screw 4 cooperates with the U-shaped spring nut 5 to fasten the front edge of the lower blade 2 to the flange 11; (5) install the tolerance adjuster 7, buffer pad 8, height adjustment nut 9 and other accessories at the corresponding position of the lower blade 2 to complete the assembly of the tail blade.

[0041] In addition, an embodiment of the utility model also provides a car, which includes the glued tail wing blade as described above.

[0042] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present invention. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A glued tail blade, characterized in that: It comprises an upper blade and a lower blade which are buckled up and down, the upper blade is fixed with the lower blade by bonding and fastened by screws, and the lower blade is embedded with a mounting bracket for connecting with the tail wing transmission mechanism on the car back door frame; Among them, the front edge of the upper blade is provided with a flange abutting against the front edge of the lower blade, and the flange is bonded and fixed to the front edge of the lower blade and fastened by a screw joint; the rear edge of the lower blade is provided with a connecting portion connected to the rear edge of the upper blade, the lower end of the connecting portion is fixedly connected to the upper surface of the lower blade, and the upper end of the connecting portion is bent to form a transverse section, and the transverse section abuts against the lower surface of the upper blade and is bonded and fixed to the upper blade.

2. The adhesive tail blade according to claim 1, characterized in that: The screw connection comprises a self-tapping screw and a U-shaped spring leaf nut. A plurality of the U-shaped spring leaf nuts are arranged on the flange at intervals along its length direction. The self-tapping screw passes through the front edge of the lower blade and the flange and is threadedly connected to the U-shaped spring leaf nut.

3. The adhesive tail blade according to claim 1, characterized in that: The upper blade and the lower blade are bonded and fixed by two-component polyurethane glue.

4. The adhesive tail blade according to claim 1, characterized in that: Two mounting brackets are symmetrically embedded on the lower blade, and the two mounting brackets are arranged in an outward eight-shaped shape.

5. The adhesive tail blade according to claim 4, characterized in that: The mounting points of the mounting bracket are pre-installed with tolerance adjusters.

6. The adhesive tail blade according to claim 1, characterized in that: A height adjustment nut is respectively provided at the middle part and both side edges of the lower blade in the length direction, and the height adjustment nut is threadedly connected to the lower blade.

7. The adhesive tail blade according to claim 1, characterized in that: A plurality of buffer pads are installed at intervals along the length direction of the rear edge of the lower blade.

8. The adhesive tail blade according to claim 1, characterized in that: The upper surface of the lower blade is provided with a doghouse structure.

9. A car, characterized in that: Comprising a glued tail wing blade as described in any one of claims 1-8.

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