A vehicle tailgate

Abstract

The invention discloses a vehicle tailgate, comprising a tailgate inner plate and a tailgate outer plate, wherein the tailgate inner plate is connected to the inner surface of the tailgate outer plate; the tailgate outer plate comprises an outer plate decorative layer, a first outer plate layer having a first outer unidirectional belt, a second outer plate layer having a second outer unidirectional belt, a third outer plate layer having a third outer unidirectional belt, and a fourth outer plate layer having a fourth outer unidirectional belt; the outer plate decorative layer is laid on the outer side of the first outer plate layer; the first outer plate layer is laid on the outer side of the second outer plate layer, and the angle between the extension direction of the first outer unidirectional belt and the extension direction of the second outer unidirectional belt is 90 degrees; the second outer plate layer is laid on the outer side of the third outer plate layer, and the angle between the extension direction of the second outer unidirectional belt and the extension direction of the third outer unidirectional belt is 0 degrees; the third outer plate layer is laid on the outer side of the fourth outer plate layer, and the extension direction of the third outer unidirectional belt is perpendicular to the extension direction of the fourth outer unidirectional belt. The vehicle tailgate manufactured in this way is light in weight and ensures sufficient structural strength.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle equipment, and in particular to a vehicle tailgate. Background Art

[0002] Vehicle lightweighting is beneficial to energy conservation and emission reduction, and it is also one of the issues that vehicle tailgate designers consider when designing.

[0003] The existing vehicle tailgate includes an inner plate and an outer plate, and the inner plate and the outer plate are generally formed by stamping metal materials. In order to ensure the strength of the vehicle tailgate, the vehicle tailgate is thicker. Such use of metal materials will make the vehicle tailgate heavier, and if the thickness of the vehicle tailgate is reduced, the structural strength cannot be guaranteed.

[0004] In view of the above problems, it needs to be improved. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a vehicle tailgate with good structural strength and light weight.

[0006] A vehicle tailgate provided by the technical solution of the present invention comprises a tailgate inner panel and a tailgate outer panel made of carbon fiber composite materials, wherein the tailgate inner panel is connected to the inner surface of the tailgate outer panel; the tailgate outer panel comprises an outer panel decorative layer, a first outer panel layer having a first outer unidirectional tape, a second outer panel layer having a second outer unidirectional tape, a third outer panel layer having a third outer unidirectional tape, and a fourth outer panel layer having a fourth outer unidirectional tape; the outer panel decorative layer is laid on the outer side of the first outer panel layer; the first outer panel layer is laid on the outer side of the second outer panel layer, and the angle between the extension direction of the first outer unidirectional tape and the extension direction of the second outer unidirectional tape is 90 degrees; the second outer panel layer is laid on the outer side of the third outer panel layer, and the angle between the extension direction of the second outer unidirectional tape and the extension direction of the third outer unidirectional tape is 0 degrees; the third outer panel layer is laid on the outer side of the fourth outer panel layer, and the extension direction of the third outer unidirectional tape is perpendicular to the extension direction of the fourth outer unidirectional tape.

[0007] Furthermore, the tailgate inner panel includes an inner panel decorative layer, a first inner panel layer composed of a first inner unidirectional tape, a second inner panel layer composed of a second inner unidirectional tape, a third inner panel layer composed of a third inner unidirectional tape, a fourth inner panel layer composed of a fourth inner unidirectional tape, a fifth inner panel layer composed of a fifth inner unidirectional tape, a sixth inner panel layer composed of a sixth inner unidirectional tape, and a seventh inner panel layer composed of a seventh inner unidirectional tape; the first inner panel layer is laid on the outer side of the inner panel decorative layer; the second inner panel layer is laid on the outer side of the first inner panel layer, and the angle between the extension direction of the first inner unidirectional tape and the extension direction of the second inner unidirectional tape is 45 degrees; the third inner panel layer is laid on the outer side of the second inner panel layer, and the angle between the extension direction of the third inner unidirectional tape and the extension direction of the second inner unidirectional tape is 45 degrees, and the angle between the extension direction of the third inner unidirectional tape and the extension direction of the first inner unidirectional tape is 90 degrees; the fourth inner panel layer is laid on the third inner panel layer On the outside, the angle between the extension direction of the fourth inner unidirectional belt and the extension direction of the third inner unidirectional belt is 45 degrees, and the angle between the extension direction of the fourth inner unidirectional belt and the extension direction of the second inner unidirectional belt is 90 degrees; the fifth inner ply is laid on the outside of the fourth inner ply, the angle between the extension direction of the fifth inner unidirectional belt and the extension direction of the fourth inner unidirectional belt is 45 degrees, and the angle between the extension direction of the third inner unidirectional belt is 0 degree; the sixth inner ply is laid on the outside of the fifth inner ply, the angle between the extension direction of the sixth inner unidirectional belt and the extension direction of the fifth inner unidirectional belt is 45 degrees, and the angle between the extension direction of the fourth inner unidirectional belt is 90 degrees; the seventh inner ply is laid on the outside of the sixth inner ply, the angle between the extension direction of the seventh inner unidirectional belt and the extension direction of the sixth inner unidirectional belt is 45 degrees, and the angle between the extension direction of the fifth inner unidirectional belt is 90 degrees.

[0008] Furthermore, the vehicle tailgate also includes a wiper mounting shell, which includes a mounting shell and a shell cover; the shell cover is connected to the tailgate inner plate, the mounting shell is connected to the shell cover, and an mounting cavity for installing the wiper is formed between the mounting shell and the shell cover.

[0009] Further, the mounting shell includes a shell base, a first protrusion and a second protrusion, the first protrusion and the second protrusion are arranged on the shell base at intervals, and the first protrusion and the second protrusion protrude in a direction away from the shell cover.

[0010] Furthermore, a reinforcing rib is connected between the first convex portion and the second convex portion, and the reinforcing rib is in a concave shape.

[0011] Furthermore, the reinforcing rib includes a first rib and two second ribs, and the two second ribs are respectively connected to the two ends of the first rib; the first rib is connected to the shell base, one of the second ribs is connected to the first protrusion, and the other second rib is connected to the second protrusion.

[0012] Furthermore, the second rib portion includes a first end portion and a second end portion, the distance between the first end portion and the first rib portion is greater than the distance between the second end portion and the first rib portion; and the width of the first end portion is smaller than the width of the second end portion.

[0013] Furthermore, a reinforcement bar is connected between the first protrusion and the shell base, and the reinforcement bar is located on a side of the first protrusion away from the second protrusion.

[0014] Furthermore, the first protrusion is provided with a first groove opening toward the shell cover, and the second protrusion is provided with a second groove opening toward the shell cover; reinforcing ribs are provided in the first groove and the second groove, and the reinforcing ribs are in a concave shape.

[0015] Furthermore, an extension plate extending in a direction away from the shell base is connected to the end of the shell base facing the shell cover, and a reinforcement plate is connected between the extension plate and the shell base.

[0016] After adopting the above technical solution, the following beneficial effects are achieved:

[0017] The tailgate outer panel and tailgate inner panel of the vehicle tailgate provided by the technical solution of the present application are made of carbon fiber composite materials, which reduces the weight. The laying method of the first outer panel layer, the second outer panel layer, the third outer panel layer and the fourth outer panel layer in the tailgate outer panel ensures the rigidity in the key force transmission direction, and ensures the structural strength on the basis of reducing the number of laying layers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:

[0019] Figure 1 A schematic diagram of a vehicle tailgate according to an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of a tailgate outer panel according to an embodiment of the present invention;

[0021] Figure 3 is a schematic diagram of a tailgate inner panel in one embodiment of the present invention;

[0022] Figure 4A schematic diagram of a wiper mounting housing according to an embodiment of the present invention;

[0023] Figure 5 It is a schematic diagram of installing a housing in one embodiment of the present invention;

[0024] Figure 6 It is a cross-sectional schematic diagram of an installation housing in one embodiment of the present invention;

[0025] Figure 7 is a schematic diagram of a reinforcing rib in one embodiment of the present invention;

[0026] Figure 8 A schematic diagram of a reinforcement strip in one embodiment of the present invention;

[0027] Fig. 9 FIG. 4 is a schematic diagram of a reinforcing plate in an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0029] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a variety of structural modes and implementation modes that can be replaced by those skilled in the art can be replaced with each other. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction to the technical solution of the invention.

[0030] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to different positions and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0031] like Figure 1-2 As shown, a vehicle tailgate 10 in one embodiment of the present invention comprises a tailgate inner panel 1 and a tailgate outer panel 2 , wherein the tailgate inner panel 1 is connected to the inner surface of the tailgate outer panel 2 .

[0032] The tailgate outer panel 2 includes an outer panel decorative layer 21 , a first outer panel layer 22 having a first outer unidirectional tape 221 , a second outer panel layer 23 having a second outer unidirectional tape 231 , a third outer panel layer 24 having a third outer unidirectional tape 241 , and a fourth outer panel layer 25 having a fourth outer unidirectional tape 251 .

[0033] The outer panel decoration layer 21 is laid on the outer side of the first outer panel layer 22 .

[0034] The first outer plate layer 22 is laid on the outer side of the second outer plate layer 23 , and the angle between the extension direction of the first outer unidirectional belt 221 and the extension direction of the second outer unidirectional belt 231 is 90 degrees.

[0035] The second outer plate layer 23 is laid on the outer side of the third outer plate layer 24, and the angle between the extension direction of the second outer unidirectional belt 231 and the extension direction of the third outer unidirectional belt 241 is 0 degree.

[0036] The third outer plate layer 24 is laid on the outer side of the fourth outer plate layer 25 , and the extension direction of the third outer unidirectional tape 241 is perpendicular to the extension direction of the fourth outer unidirectional tape 251 .

[0037] The vehicle tailgate 10 is installed at the rear of the vehicle and is a conventional component of the vehicle. The vehicle tailgate 10 is composed of a tailgate inner panel 1 and a tailgate outer panel 2. The tailgate inner panel 1 and the tailgate outer panel 2 are made of carbon fiber composite materials. The tailgate outer panel 2 is located on the outer side of the tailgate inner panel 1 and is bonded to the tailgate inner panel 1 to form the vehicle tailgate 10.

[0038] The tailgate outer panel 2 includes an outer panel decorative layer 21, a first outer panel layer 22, a second outer panel layer 23, a third outer panel layer 24 and a fourth outer panel layer 25. The first outer panel layer 22, the second outer panel layer 23, the third outer panel layer 24 and the fourth outer panel layer 25 are made of carbon fiber composite material, wherein the reinforcement material is T700 series 12K unidirectional tape, the base material is epoxy resin, and they are manufactured by resin molding process.

[0039] The first outer ply 22 has a first outer unidirectional tape 221, the second outer ply 23 has a second outer unidirectional tape 231, the third outer ply 24 has a third outer unidirectional tape 241, and the fourth outer ply 25 has a fourth outer unidirectional tape 251. The first outer unidirectional tape 221, the second outer unidirectional tape 231, the third outer unidirectional tape 241, and the fourth outer unidirectional tape 251 are all unidirectional tapes made of the same material.

[0040] The one-way belt has an extension direction. For the convenience of explaining the extension direction of the one-way belt, the width direction of the vehicle tailgate 10 is taken as the reference 0 degree direction, that is, the horizontal direction. The extension direction of the first outer one-way belt 221 is the direction rotated 45 degrees counterclockwise relative to the horizontal direction, the extension direction of the second outer one-way belt 231 is the direction rotated 45 degrees clockwise relative to the horizontal direction, the extension direction of the third outer one-way belt 241 is the direction rotated 45 degrees clockwise relative to the horizontal direction, and the extension direction of the fourth outer one-way belt 251 is the direction rotated 45 degrees counterclockwise relative to the horizontal direction.

[0041] When the tailgate outer panel 2 is manufactured, the outer panel decorative layer 21, the first outer panel layer 22, the second outer panel layer 23, the third outer panel layer 24 and the fourth outer panel layer 25 are arranged in sequence from the tailgate outer panel 2 to the tailgate inner panel 1. The outer panel decorative layer 21 is laid on the outer side of the first outer panel layer 22, the first outer panel layer 22 is laid on the outer side of the second outer panel layer 23, the second outer panel layer 23 is laid on the outer side of the third outer panel layer 24, and the third outer panel layer 24 is laid on the outer side of the fourth outer panel layer 25. After laying, the angle between the first outer unidirectional tape 221 and the second outer unidirectional tape 231 is 90 degrees, the angle between the second outer unidirectional tape 231 and the third outer unidirectional tape 241 is 0 degrees, and the angle between the third outer unidirectional tape 241 and the fourth outer unidirectional tape 251 is 90 degrees. The tailgate outer panel 2 paved in this way ensures the force degree in the key force transmission direction, so only five layers are laid to ensure the rigidity requirement. This not only reduces the weight of the tailgate outer panel 2 after laying, but also simplifies the production steps.

[0042] Optionally, the outer panel decorative layer 21 is composed of 3K twill fabric.

[0043] In one embodiment, if Figure 1 and Figure 3As shown, the tailgate inner panel 1 includes an inner panel decorative layer 11, a first inner panel layer 12 composed of a first inner unidirectional tape 121, a second inner panel layer 13 composed of a second inner unidirectional tape 131, a third inner panel layer 14 composed of a third inner unidirectional tape 141, a fourth inner panel layer 15 composed of a fourth inner unidirectional tape 151, a fifth inner panel layer 16 composed of a fifth inner unidirectional tape 161, a sixth inner panel layer 17 composed of a sixth inner unidirectional tape 171, and a seventh inner panel layer 18 composed of a seventh inner unidirectional tape 181. The first inner panel layer 12 is laid on the outer side of the inner panel decorative layer 11. The second inner panel layer 13 is laid on the outer side of the first inner panel layer 12, and the angle between the extension direction of the first inner unidirectional tape 121 and the extension direction of the second inner unidirectional tape 131 is 45 degrees. The third inner ply 14 is laid on the outer side of the second inner ply 13, and the angle between the extension direction of the third inner unidirectional belt 141 and the extension direction of the second inner unidirectional belt 131 is 45 degrees, and the angle between the extension direction of the third inner unidirectional belt 141 and the extension direction of the first inner unidirectional belt 121 is 90 degrees. The fourth inner ply 15 is laid on the outer side of the third inner ply 14, and the angle between the extension direction of the fourth inner unidirectional belt 151 and the extension direction of the third inner unidirectional belt 141 is 45 degrees, and the angle between the extension direction of the fourth inner unidirectional belt 151 and the extension direction of the second inner unidirectional belt 131 is 90 degrees. The fifth inner ply 16 is laid on the outer side of the fourth inner ply 15, and the angle between the extension direction of the fifth inner unidirectional belt 161 and the extension direction of the fourth inner unidirectional belt 151 is 45 degrees, and the angle between the extension direction of the fifth inner unidirectional belt 161 and the extension direction of the third inner unidirectional belt 141 is 0 degrees. The sixth inner ply 17 is laid on the outer side of the fifth inner ply 16, and the angle between the extension direction of the sixth inner unidirectional belt 171 and the extension direction of the fifth inner unidirectional belt is 45 degrees, and the angle between the extension direction of the sixth inner unidirectional belt 171 and the extension direction of the fourth inner unidirectional belt 151 is 90 degrees. The seventh inner ply 18 is laid on the outer side of the sixth inner ply 17, and the angle between the extension direction of the seventh inner unidirectional belt 181 and the extension direction of the sixth inner unidirectional belt 171 is 45 degrees, and the angle between the extension direction of the seventh inner unidirectional belt 181 and the extension direction of the fifth inner unidirectional belt 161 is 90 degrees.

[0044] Specifically, the tailgate inner panel 1 and the tailgate outer panel 2 are made of the same material. For the description of the material, please refer to the relevant content mentioned above and will not be repeated here.

[0045] The tailgate inner panel 1 comprises an inner panel decorative layer 11, a first inner panel layer 12, a second inner panel layer 13, a third inner panel layer 14, a fourth inner panel layer 15, a fifth inner panel layer 16, a sixth inner panel layer 17 and a seventh inner panel layer 18. The first inner panel layer 12 has a first inner unidirectional tape 121, the second inner panel layer 13 has a second inner unidirectional tape 131, the third inner panel layer 14 has a third inner unidirectional tape 141, the fourth inner panel layer 15 has a fourth inner unidirectional tape 151, the fifth inner panel layer 16 has a fifth inner unidirectional tape 161, the sixth inner panel layer 17 has a sixth inner unidirectional tape 171, and the seventh inner panel layer 18 has a seventh inner unidirectional tape 181.

[0046] The extending direction of the first inner one-way belt 121 is 45 degrees counterclockwise relative to the horizontal direction, the extending direction of the second inner one-way belt 131 is 90 degrees counterclockwise relative to the horizontal direction, the extending direction of the third inner one-way belt 141 is 45 degrees clockwise relative to the horizontal direction, the extending direction of the fourth inner one-way belt 151 is the horizontal direction, the extending direction of the fifth inner one-way belt 161 is 45 degrees clockwise relative to the horizontal direction, the extending direction of the sixth inner one-way belt 171 is 90 degrees clockwise relative to the horizontal direction, and the extending direction of the seventh inner one-way belt 181 is 45 degrees counterclockwise relative to the horizontal direction.

[0047] When the tailgate inner panel 1 is manufactured, the inner panel decoration layer 11, the first inner panel layer 12, the second inner panel layer 13, the third inner panel layer 14, the fourth inner panel layer 15, the fifth inner panel layer 16, the sixth inner panel layer 17 and the seventh inner panel layer 18 are arranged in sequence in the direction from the tailgate inner panel 1 to the tailgate outer panel 2. Among them, the first inner panel layer 12 is laid on the outer side of the inner panel decoration layer 11, the second inner panel layer 13 is laid on the outer side of the first inner panel layer 12, the third inner panel layer 14 is laid on the outer side of the second inner panel layer 13, the fourth inner panel layer 15 is laid on the outer side of the third inner panel layer 14, the fifth inner panel layer 16 is laid on the outer side of the fourth inner panel, etc., the sixth inner panel layer 17 is laid on the outer side of the fifth inner panel layer 16, and the seventh inner panel layer 18 is laid on the outer side of the sixth inner panel layer 17.

[0048] After laying, the included angle between the extension direction of the second inner unidirectional belt 131 and the extension direction of the first inner unidirectional belt 121 is 45 degrees, the included angle between the extension direction of the third inner unidirectional belt 141 and the extension direction of the second inner unidirectional belt 131 is 45 degrees, and the included angle between the extension direction of the third inner unidirectional belt 141 and the extension direction of the first inner unidirectional belt 121 is 90 degrees. The included angle between the extension direction of the fourth inner unidirectional belt 151 and the extension direction of the third inner unidirectional belt 141 is 45 degrees, and the included angle between the extension direction of the fourth inner unidirectional belt 151 and the extension direction of the second inner unidirectional belt 131 is 90 degrees. The included angle between the extension direction of the fifth inner unidirectional belt 161 and the extension direction of the fourth inner unidirectional belt 151 is 45 degrees, and the included angle between the extension direction of the fifth inner unidirectional belt 161 and the extension direction of the third inner unidirectional belt 141 is 0 degrees. The included angle between the extension direction of the sixth inner unidirectional belt 171 and the extension direction of the fifth inner unidirectional belt 161 is 45 degrees, and the included angle between the extension direction of the sixth inner unidirectional belt 171 and the extension direction of the fourth inner unidirectional belt 151 is 90 degrees. The angle between the extending direction of the seventh inner unidirectional belt 181 and the extending direction of the sixth inner unidirectional belt 171 is 45 degrees, and the angle between the extending direction of the seventh inner unidirectional belt 181 and the extending direction of the fifth inner unidirectional belt 161 is 90 degrees.

[0049] This laying method maintains the rigidity in the key force transmission direction, and only 8 layers are laid, which greatly reduces the weight.

[0050] Optionally, the inner panel decoration layer 11 and the outer panel decoration layer 21 are manufactured from the same material.

[0051] In one embodiment, if Figure 1-4 As shown, the vehicle tailgate 10 further includes a wiper mounting shell 3, which includes a mounting shell 31 and a shell cover 32. The shell cover 32 is connected to the tailgate inner plate 1, the mounting shell 31 is connected to the shell cover 32, and a mounting cavity for mounting the wiper is formed between the mounting shell 31 and the shell cover 32.

[0052] The vehicle tailgate 10 also includes a wiper mounting shell 3, which is mounted on the inner side of the tailgate inner plate 1 and is used to mount a wiper. The wiper mounting shell 3 includes a mounting shell 31 and a shell cover 32, the shell cover 32 is connected to the tailgate inner plate 1, and the mounting shell 31 is connected to the shell cover 32. The mounting shell 31 is box-shaped, and forms a mounting cavity with the shell cover 32, and the wiper is rotatably connected to the mounting cavity. The wiper mounting shell 3 configured in this way has a simple structure, and the mounting shell 31 is box-shaped, which improves the structural strength, and increases the space of the mounting cavity, which is convenient for installing the wiper.

[0053] Optionally, the housing cover 32 includes a cover base plate 321 and a cover side plate 322. The cover base plate 321 is connected to the tailgate inner plate 1, and the cover side plate 322 is connected to the cover base plate 321. The cover base plate 321 and the cover side plate 322 are connected in an L shape.

[0054] The cover plate side plate 322 is provided with a side plate arc portion 3221 , and the side plate arc portion 3221 is arc-shaped, so that the mechanical property is better, and it can resist a greater force, and thus is not easily damaged.

[0055] In one embodiment, if Figure 4-6 As shown, the mounting shell 31 includes a shell base 311 , a first protrusion 312 and a second protrusion 313 , the first protrusion 312 and the second protrusion 313 are arranged on the shell base 311 at intervals, and the first protrusion 312 and the second protrusion 313 protrude in a direction away from the shell cover 32 .

[0056] Specifically, the mounting housing 31 has a housing base 311, and a first protrusion 312 and a second protrusion 313 are provided on one side of the housing base 311 away from the housing cover 32. The first protrusion 312 and the second protrusion 313 are arranged vertically spaced apart from each other on the vehicle tailgate 10.

[0057] The first protrusion 312 and the second protrusion 313 are reinforcement structures for mounting the housing 31 , which enhance the structural strength of the housing base 311 and make it less susceptible to damage.

[0058] In one embodiment, if Figure 5-7As shown, a reinforcing rib 4 is connected between the first convex portion 312 and the second convex portion 313 , and the reinforcing rib 4 is in a concave shape.

[0059] Specifically, the first convex portion 312 and the second convex portion 313 are arranged at intervals, and a space is formed between the first convex portion 312 and the second convex portion 313. A reinforcing rib 4 is arranged in the space, and the reinforcing rib 4 is connected between the first convex portion 312 and the second convex portion 313. The reinforcing rib 4 supports the first convex portion 312 and the second convex portion 313, thereby improving the structural strength.

[0060] The reinforcing rib 4 is in a concave shape, that is, a notch is sunken in the surface of the reinforcing rib 4. In this embodiment, the opening of the notch faces away from the housing cover 32. The reinforcing rib 4 in a concave shape is light and has a certain elasticity, so it is not easy to be damaged.

[0061] Optionally, a plurality of reinforcing ribs 4 are provided between the first convex portion 312 and the second convex portion 313 , and the plurality of reinforcing ribs 4 are arranged at intervals.

[0062] In one embodiment, if Figure 5-7 As shown, the reinforcing rib 4 includes a first rib 41 and two second ribs 42, and the two second ribs 42 are respectively connected to both ends of the first rib 41. The first rib 41 is connected to the shell base 311, one of the second ribs 42 is connected to the first protrusion 312, and the other second rib 42 is connected to the second protrusion 313.

[0063] Specifically, the first rib 41 is connected to the shell base 311, one of the second ribs 42 is connected to the end of the first rib 41 facing the first protrusion 312 and connected to the first protrusion 312, and the other second rib 42 is connected to the end of the first rib 41 facing the second protrusion 313 and connected to the second protrusion 313. The distance between the end of the second rib 42 away from the shell base 311 and the shell base 311 is greater than the distance between the end of the first rib 41 away from the shell base 311 and the shell base 311, so that the first rib 41 and the two second ribs 42 are connected to form a concave shape. Such a configuration allows the reinforcing rib 4 to be more firmly connected between the first protrusion 312 and the second protrusion 313.

[0064] Optionally, the portion of the shell base 311 between the first protrusion 312 and the second protrusion 313 is defined as a base plate surface, and the base plate surface has a first plate surface 3111 connected to the first protrusion 312 and a second plate surface 3112 connected to the second protrusion 313. The connection between the first plate surface 3111 and the second plate surface 3112 protrudes in a direction away from the shell cover 32, that is, the angle between the first plate surface 3111 and the second plate surface 3112 after connection is an obtuse angle. In this way, the force effect is better and the strength is improved.

[0065] In one embodiment, if Figure 7 As shown, the second rib 42 includes a first end 421 and a second end 422, and the distance between the first end 421 and the first rib 41 is greater than the distance between the second end 422 and the first rib 41. The width of the first end 421 is smaller than the width of the second end 422.

[0066] Specifically, the second rib 42 has a first end 421 away from the first rib 41 and a second end 422 close to the first rib 41, and the width of the first end 421 is smaller than the width of the second end 422. The entire second rib 42 is tapered in the direction from the housing cover 32 toward the mounting housing 31.

[0067] In one embodiment, if Figure 5 and Figure 8 As shown, a reinforcement bar 5 is connected between the first protrusion 312 and the shell base 311 , and the reinforcement bar 5 is located on a side of the first protrusion 312 away from the second protrusion 313 .

[0068] Specifically, a portion of the housing base 311 is located on a side of the first protrusion 312 away from the second protrusion 313, and a reinforcing strip 5 is connected between the first protrusion 312 and the portion, thereby improving the structural strength between the first protrusion 312 and the housing base 311.

[0069] Optionally, the reinforcing strip 5 includes a first connecting strip 51 connected to the shell base 311 and a second connecting strip 52 connected to the second protrusion 313. The angle between the first connecting strip 51 and the second connecting strip 52 is an obtuse angle.

[0070] Optionally, a plurality of reinforcement bars 5 are disposed between the shell base 311 and the first protrusion 312 , and the plurality of reinforcement bars 5 are disposed at intervals.

[0071] In one embodiment, if Figure 4 As shown, the first convex portion 312 is provided with a first groove 3121 opening toward the housing cover 32, and the second convex portion 313 is provided with a second groove 3131 opening toward the housing cover 32. The first groove 3121 and the second groove 3131 are provided with a reinforcing rib 6, which is in a concave shape.

[0072] Specifically, the mounting housing 31 has a housing cavity with an opening toward the housing cover plate 32, a first groove 3121 with an opening toward the housing cover plate 32 is provided on the surface of the first convex portion 312 facing the housing cover plate 32, and a second groove 3131 with an opening toward the housing cover plate 32 is provided on the surface of the second convex portion 313 facing the cover plate. Both the first groove 3121 and the second groove 3131 are in communication with the housing cavity.

[0073] The first groove 3121 and the second groove 3131 are both connected with a reinforcing rib 6, which is in a concave shape, thereby improving the structural strength of the installation shell 31. The structure of the reinforcing rib 6 is the same as that of the reinforcing rib 4, and will not be repeated here.

[0074] In one embodiment, if Figure 4-5 and Fig. 9 As shown, an extension plate 314 extending in a direction away from the shell base 311 is connected to the end of the shell base 311 facing the shell cover 32 , and a reinforcement plate 7 is connected between the extension plate 314 and the shell base 311 .

[0075] Specifically, the end of the housing base 311 and the housing cover 32 is connected with an extension plate 314, and the extension plate 314 extends in a direction away from the housing base 311. The extension plate 314 increases the contact area with the housing cover 32, so that the installation housing 31 and the housing cover 32 are more firmly connected.

[0076] A reinforcing plate 7 is connected between the extension plate 314 and the shell base 311 , thereby improving the structural strength between the extension plate 314 and the shell base 311 .

[0077] Optionally, the reinforcing plate 7 is triangular in shape, which provides better structural strength.

[0078] In summary, the present invention discloses a vehicle tailgate 10, comprising a tailgate inner panel 1 and a tailgate outer panel 2, wherein the tailgate inner panel 1 is connected to the inner surface of the tailgate outer panel 2. The tailgate outer panel 2 comprises an outer panel decorative layer 21, a first outer panel layer 22 composed of a first outer unidirectional tape 221, a second outer panel layer 23 composed of a second outer unidirectional tape 231, a third outer panel layer 24 composed of a third outer unidirectional tape 241, and a fourth outer panel layer 25 composed of a fourth outer unidirectional tape 251. The outer panel decorative layer 21 is laid on the outer side of the first outer panel layer 22. The first outer panel layer 22 is laid on the outer side of the second outer panel layer 23, and the angle between the extension direction of the first outer unidirectional tape 221 and the extension direction of the second outer unidirectional tape 231 is 90 degrees. The second outer panel layer 23 is laid on the outer side of the third outer panel layer 24, and the angle between the extension direction of the second outer unidirectional tape 231 and the extension direction of the third outer unidirectional tape 241 is 0 degrees. The third outer plate layer 24 is laid on the outer side of the fourth outer plate layer 25, and the extension direction of the third outer unidirectional belt 241 is perpendicular to the extension direction of the fourth outer unidirectional belt 251. The vehicle tailgate 10 manufactured in this way is light in weight and ensures sufficient structural strength. The tailgate outer panel 2 and the tailgate inner panel 1 of the vehicle tailgate 10 are made of carbon fiber composite materials to reduce the weight. The laying method of the first outer plate layer 22, the second outer plate layer 23, the third outer plate layer 24 and the fourth outer plate layer 25 in the tailgate outer panel 2 ensures the rigidity in the key force transmission direction, and ensures the structural strength on the basis of reducing the number of laying layers.

[0079] As needed, the above technical solutions can be combined to achieve the best technical effect.

[0080] The above description is only the principle and preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this field, several other modifications can be made based on the principle of the present invention, which should also be considered as the protection scope of the present invention.

Claims

1. A vehicle tailgate, characterized in that: It includes a tailgate inner panel and a tailgate outer panel made of carbon fiber composite material, wherein the tailgate inner panel is connected to the inner surface of the tailgate outer panel; The tailgate outer panel comprises an outer panel decorative layer, a first outer panel layer having a first outer unidirectional tape, a second outer panel layer having a second outer unidirectional tape, a third outer panel layer having a third outer unidirectional tape, and a fourth outer panel layer having a fourth outer unidirectional tape; The outer panel decoration layer is laid on the outer side of the first outer panel layer; The first outer plate layer is laid on the outer side of the second outer plate layer, and the angle between the extension direction of the first outer unidirectional belt and the extension direction of the second outer unidirectional belt is 90 degrees; The second outer ply is laid on the outer side of the third outer ply, and the angle between the extension direction of the second outer unidirectional belt and the extension direction of the third outer unidirectional belt is 0 degrees; The third outer plate layer is laid on the outer side of the fourth outer plate layer, and the extension direction of the third outer unidirectional belt is perpendicular to the extension direction of the fourth outer unidirectional belt; The vehicle tailgate further comprises a wiper mounting shell, the wiper mounting shell comprising a mounting shell and a shell cover; the shell cover is connected to the tailgate inner plate, the mounting shell is connected to the shell cover, and a mounting cavity for mounting the wiper is formed between the mounting shell and the shell cover; The mounting shell comprises a shell base, a first convex portion and a second convex portion, wherein the first convex portion and the second convex portion are arranged on the shell base at intervals, the first convex portion and the second convex portion protrude in a direction away from the shell cover plate, and a reinforcing rib is connected between the first convex portion and the second convex portion, and the reinforcing rib is in a concave shape; The first convex portion is provided with a first groove opening toward the shell cover plate, and the second convex portion is provided with a second groove opening toward the shell cover plate; reinforcing ribs are provided in the first groove and the second groove, and the reinforcing ribs are in a concave shape; An extension plate extending in a direction away from the shell base is connected to the end of the shell base facing the shell cover, and a reinforcement plate is connected between the extension plate and the shell base.

2. The vehicle tailgate according to claim 1, characterized in that: The tailgate inner panel comprises an inner panel decorative layer, a first inner panel layer composed of a first inner unidirectional tape, a second inner panel layer composed of a second inner unidirectional tape, a third inner panel layer composed of a third inner unidirectional tape, a fourth inner panel layer composed of a fourth inner unidirectional tape, a fifth inner panel layer composed of a fifth inner unidirectional tape, a sixth inner panel layer composed of a sixth inner unidirectional tape, and a seventh inner panel layer composed of a seventh inner unidirectional tape; The first inner panel layer is laid on the outer side of the inner panel decoration layer; The second inner plate layer is laid on the outer side of the first inner plate layer, and the angle between the extension direction of the first inner unidirectional belt and the extension direction of the second inner unidirectional belt is 45 degrees; The third inner ply is laid on the outer side of the second inner ply, and the included angle between the extension direction of the third inner unidirectional belt and the extension direction of the second inner unidirectional belt is 45 degrees, and the included angle between the third inner unidirectional belt and the extension direction of the first inner unidirectional belt is 90 degrees; The fourth inner ply is laid on the outer side of the third inner ply, and the included angle between the extension direction of the fourth inner unidirectional belt and the extension direction of the third inner unidirectional belt is 45 degrees, and the included angle between the fourth inner unidirectional belt and the extension direction of the second inner unidirectional belt is 90 degrees; The fifth inner ply is laid on the outer side of the fourth inner ply, the angle between the extension direction of the fifth inner unidirectional belt and the extension direction of the fourth inner unidirectional belt is 45 degrees, and the angle between the fifth inner unidirectional belt and the extension direction of the third inner unidirectional belt is 0 degrees; The sixth inner ply is laid on the outer side of the fifth inner ply, and the included angle between the extension direction of the sixth inner unidirectional belt and the extension direction of the fifth inner unidirectional belt is 45 degrees, and the included angle between the sixth inner unidirectional belt and the extension direction of the fourth inner unidirectional belt is 90 degrees; The seventh inner board layer is laid on the outer side of the sixth inner board layer, and the angle between the extension direction of the seventh inner unidirectional belt and the extension direction of the sixth inner unidirectional belt is 45 degrees, and the angle between the seventh inner unidirectional belt and the extension direction of the fifth inner unidirectional belt is 90 degrees.

3. The vehicle tailgate according to claim 1, characterized in that: The reinforcing rib comprises a first rib portion and two second rib portions, wherein the two second rib portions are respectively connected to two ends of the first rib portion; The first rib is connected to the shell base, one of the second ribs is connected to the first protrusion, and another of the second ribs is connected to the second protrusion.

4. The vehicle tailgate according to claim 3, characterized in that: The second rib portion includes a first end portion and a second end portion, and a distance between the first end portion and the first rib portion is greater than a distance between the second end portion and the first rib portion; The width of the first end portion is smaller than the width of the second end portion.

5. The vehicle tailgate according to claim 1, characterized in that: A reinforcement bar is connected between the first protrusion and the shell base, and the reinforcement bar is located on a side of the first protrusion away from the second protrusion.

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