Lightweight vehicle door and commercial vehicle

Abstract

The present invention relates to the field of vehicle technology, and specifically discloses a lightweight vehicle door and a commercial vehicle. The lightweight vehicle door comprises an outer panel, an inner panel and a frame, wherein the frame is located between the outer panel and the inner panel, and the inner panel is provided with a first mounting groove and a second mounting groove connected with the first mounting groove, wherein the first mounting groove and the second mounting groove are both closed by the outer panel, and the first mounting groove extends along the left side of a window frame, the top side of the window frame and the right side of the window frame in sequence, and the second mounting groove extends along the left side of a vehicle door body, the bottom side of the vehicle door body and the right side of the vehicle door body in sequence, and the frame comprises a first frame arranged in the first mounting groove, and a second frame arranged in the second mounting groove, wherein the first frame can strengthen the window frame, and the second frame can strengthen the vehicle door body, and the two ends of the first frame are respectively connected with the two ends of the second frame to form a whole, thereby ensuring the overall strength and rigidity of the vehicle door.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a lightweight vehicle door and a commercial vehicle. Background Art

[0002] Lightweighting of automobiles is an effective means and an important way to reduce automobile fuel consumption and emissions. The door is a relatively independent component in the design of the automobile body. Its safety is particularly important in the design of the door. It must ensure that when the vehicle collides, the damage to pedestrians and passengers is minimized as much as possible.

[0003] Door stiffness has an important impact on the overall performance of the car. If the door stiffness is insufficient, it will cause excessive deformation in the local area of ​​the door, causing the door to get stuck, increase the closing force, and cause loose sealing, leading to air leakage, water seepage, and internal device falling off. If the door stiffness is guaranteed, increasing the amount of steel plate can meet the requirements, but this operation method will inevitably increase the weight of the door, which is not conducive to the requirement of lightweighting the car.

[0004] In this regard, a previous patent with application number CN202111466980.0 provides a lightweight car door, including an outer panel and an inner panel, a frame is provided between the inner panel and the outer panel, the outer panel includes a first glass fiber composite layer, a metal anti-collision plate and a second glass fiber composite layer, the first glass fiber composite layer, the metal anti-collision plate and the second glass fiber composite layer are formed into an integrated anti-collision reinforcement structure through a compression molding process, which effectively improves the structural strength and rigidity of the car door while meeting the lightweight requirements. However, its frame is designed as multiple separate and dispersed parts, which has limited effect on improving the overall strength of the car door. Summary of the invention

[0005] The purpose of the present invention is to provide a lightweight vehicle door and a commercial vehicle to solve the problem that the frame of the lightweight vehicle door in the prior art is designed as a plurality of dispersed parts, which has a limited effect on improving the overall strength of the vehicle door.

[0006] On the one hand, the present invention provides a lightweight vehicle door, which includes an outer panel, an inner panel, and a frame located between the outer panel and the inner panel, the upper part of the outer panel and the upper part of the inner panel constitute a window frame, the lower part of the outer panel and the lower part of the inner panel constitute a vehicle door body, the inner panel is provided with a first mounting groove and a second mounting groove connected to the first mounting groove, the first mounting groove and the second mounting groove are both closed by the outer panel, the first mounting groove extends along the left side of the window frame, the top edge of the window frame and the right side of the window frame in sequence, the second mounting groove extends along the left side of the vehicle door body, the bottom edge of the vehicle door body and the right side of the vehicle door body in sequence, the frame includes a first frame arranged in the first mounting groove, and a second frame arranged in the second mounting groove, the two ends of the first frame are respectively connected to the two ends of the second frame.

[0007] As a preferred technical solution for lightweight vehicle doors, the cross-section of the first frame is circular.

[0008] As a preferred technical solution for lightweight vehicle doors, the cross-section of the second frame is square.

[0009] As a preferred technical solution for lightweight vehicle doors, the cross-section of the first mounting groove is trapezoidal.

[0010] As a preferred technical solution for lightweight vehicle doors, the first frame and the second frame are both made of aluminum.

[0011] As a preferred technical solution for lightweight vehicle doors, the outer panel and the inner panel are both made of carbon fiber composite materials.

[0012] As an optimal technical solution for a lightweight vehicle door, the lightweight vehicle door also includes a first connecting block, a second connecting block and a third connecting block distributed in a triangular shape, the first connecting block connects the second frame and the inner panel, the second connecting block connects the first frame and the inner panel, the third connecting block connects the inner panel, and the third connecting block is connected to the connection between the first frame and the second frame.

[0013] As a preferred technical solution for the lightweight vehicle door, the inner panel is further provided with a door lock installation groove connected to the second installation groove, the bottom wall of the door lock installation groove is flush with the bottom wall of the second installation groove, and the lightweight vehicle door further includes a door lock installation seat connected to the second frame, and the door lock installation seat is located in the door lock installation groove;

[0014] The door lock mounting groove has a first side wall and a second side wall which are sequentially arranged around the outer circumference of the bottom wall of the door lock mounting groove, the first side wall is connected to the side wall of the second mounting groove at an angle, the second side wall is connected to the first side wall at an angle, the second side wall is tangent to the side wall of the second mounting groove, and the door lock mounting seat is respectively fitted with the bottom wall of the door lock mounting groove and the second side wall.

[0015] As a preferred technical solution for the lightweight vehicle door, the lightweight vehicle door further includes a door interior trim panel, and the door interior trim panel covers the inner surface of the inner panel.

[0016] On the other hand, the present invention provides a commercial vehicle, comprising the lightweight door of any of the above solutions.

[0017] The beneficial effects of the present invention are:

[0018] The present invention provides a lightweight vehicle door and a commercial vehicle. The lightweight vehicle door comprises an outer panel, an inner panel and a frame, wherein the frame is located between the outer panel and the inner panel, the inner panel is provided with a first mounting groove and a second mounting groove connected with the first mounting groove, the first mounting groove and the second mounting groove are both closed by the outer panel, the first mounting groove extends along the left side of a window frame, the top edge of the window frame and the right side of the window frame in sequence, the second mounting groove extends along the left side of a vehicle door body, the bottom edge of the vehicle door body and the right side of the vehicle door body in sequence, the frame comprises a first frame arranged in the first mounting groove, and a second frame arranged in the second mounting groove, the first frame can strengthen the window frame, the second frame can strengthen the vehicle door body, and two ends of the first frame are respectively connected to two ends of the second frame to form a whole, so as to ensure the overall strength and rigidity of the vehicle door. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of the outer panel of the lightweight door in an embodiment of the present invention;

[0020] Figure 2 It is a structural schematic diagram of a skeleton, a first connecting block, a second connecting block, a third connecting block and a door lock mounting seat of a lightweight vehicle door in an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the structure of an inner panel of a lightweight vehicle door according to an embodiment of the present invention;

[0022] Figure 4 A schematic diagram of the structure of a door interior trim panel of a lightweight vehicle door according to an embodiment of the present invention;

[0023] Figure 5 A schematic diagram of a portion of the structure of a lightweight vehicle door according to an embodiment of the present invention;

[0024] Figure 6 It is an axonometric view of a lightweight vehicle door in an embodiment of the present invention.

[0025] In the figure:

[0026] 10. Window frame; 20. Door body;

[0027] 1. Outer panel;

[0028] 2. Inner plate; 21. First mounting slot; 22. Second mounting slot; 23. Door lock mounting slot; 231. First side wall; 232. Second side wall;

[0029] 3. skeleton; 31. first skeleton; 32. second skeleton;

[0030] 4. Door interior panels;

[0031] 5. First connecting block; 6. Second connecting block; 7. Third connecting block; 8. Door lock mounting base. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] The existing lightweight car door includes an outer panel and an inner panel, a frame is arranged between the inner panel and the outer panel, the outer panel includes a first glass fiber composite layer, a metal anti-collision plate and a second glass fiber composite layer, the first glass fiber composite layer, the metal anti-collision plate and the second glass fiber composite layer are formed into an integrated anti-collision reinforcement structure through a compression molding process, which effectively improves the structural strength and rigidity of the car door while meeting the lightweight requirements. However, the frame is designed as multiple separate parts, which has limited effect on improving the overall strength of the car door.

[0037] In this regard, the present embodiment provides a lightweight vehicle door to solve the above-mentioned problem, and the lightweight vehicle door can be applied to a vehicle.

[0038] like Figures 1 to 6 As shown, the lightweight door provided in this embodiment includes an outer panel 1, an inner panel 2 and a frame 3. The frame 3 is located between the outer panel 1 and the inner panel 2, and the overall strength of the outer panel 1 and the inner panel 2 is enhanced by the frame 3.

[0039] In this embodiment, the outer panel 1 and the inner panel 2 are both made of carbon fiber composite materials, which can effectively reduce the overall weight of the door, thereby promoting the lightweight of the vehicle, improving fuel economy, and reducing production costs. Of course, in other embodiments, the inner panel 2 and the outer panel 1 can also use other lightweight materials as needed.

[0040] In this embodiment, the upper part of the outer panel 1 and the upper part of the inner panel 2 constitute the window frame 10, the lower part of the outer panel 1 and the lower part of the inner panel 2 constitute the door body 20, the inner panel 2 is provided with a first mounting groove 21 and a second mounting groove 22 connected with the first mounting groove 21, the first mounting groove 21 and the second mounting groove 22 are both closed by the outer panel 1, the first mounting groove 21 extends along the left side of the window frame 10, the top edge of the window frame 10 and the right side of the window frame 10 in sequence, the second mounting groove 22 extends along the left side of the door body 20, the bottom edge of the door body 20 and the right side of the door body 20 in sequence, the frame 3 includes a first frame 31 arranged in the first mounting groove 21, and a second frame 32 arranged in the second mounting groove 22, the first frame 31 can strengthen the window frame 10, the second frame 32 can strengthen the door body 20, and the two ends of the first frame 31 are respectively connected to the two ends of the second frame 32 to form a whole, which can ensure the overall strength and rigidity of the door.

[0041] Optionally, the cross section of the first frame 31 is circular. With this arrangement, when the vehicle door is subjected to a lateral impact, the first frame 31 can withstand a strong impact resistance and is not easily broken. Preferably, the cross section of the first mounting groove 21 is trapezoidal. With this arrangement, the first mounting groove 21 can make the window frame 10 have a stronger strength, thereby improving the ability to resist lateral impact, and combined with the cross section of the first frame 31 being set as a circle, the overall stiffness and strength performance of the window frame 10 can be further improved. It should be noted that the trapezoid in this embodiment is not limited to a standard trapezoidal geometric shape, and also refers to a shape that is similar to a trapezoid. Further preferably, the trapezoid can be an isosceles trapezoid.

[0042] Optionally, the second frame 32 has a square cross section. Specifically, in this embodiment, the second frame 32 has a rectangular cross section. With this configuration, the second frame 32 has a strong lateral impact resistance capability to improve the overall rigidity and strength of the door body 20 .

[0043] Optionally, the first frame 31 and the second frame 32 are both made of aluminum. Compared with steel, the frame 3 made of aluminum can effectively reduce weight and further promote the lightweight of the door. At the same time, the first frame 31 and the second frame 32 made of aluminum can cooperate with the inner plate 2 and the outer plate 1 to ensure that the overall rigidity and strength of the door meet the use requirements.

[0044] Optionally, the lightweight door further includes a first connection block 5, a second connection block 6 and a third connection block 7 distributed in a triangular shape, wherein the first connection block 5 connects the second frame 32 and the inner panel 2, the second connection block 6 connects the first frame 31 and the inner panel 2, the third connection block 7 connects the inner panel 2, and the third connection block 7 is connected to the connection between the first frame 31 and the second frame 32. In this arrangement, the frame 3 and the inner panel 2 can be fixed by the first connection block 5, the second connection block 6 and the third connection block 7, and the triangular arrangement can effectively ensure the overall stability, thereby ensuring the stability of the connection between the frame 3 and the inner panel 2. Preferably, the first connection block 5, the second connection block 6 and the third connection block 7 are also used to connect vehicle body accessories, so that the utilization rate of the first connection block 5, the second connection block 6 and the third connection block 7 can be improved and parts can be saved.

[0045] Optionally, the inner panel 2 is further provided with a door lock installation groove 23 connected to the second installation groove 22. Specifically, the door lock installation groove 23 is located between the second installation groove 22 and the left edge of the inner panel 2, and the bottom wall of the door lock installation groove 23 is flush with the bottom wall of the second installation groove 22. The lightweight door further includes a door lock mounting seat 8 connected to the second frame 32, the door lock mounting seat 8 is used to install the door lock, and the door lock mounting seat 8 is located in the door lock installation groove 23. Therefore, the door lock can be supported by the second frame 32, and the force of the door lock is directly transmitted to the second frame 32, and then can be distributed to the entire door through the second frame 32 and the first frame 31. The door lock installation groove 23 has a first side wall 231 and a second side wall 232 which are sequentially arranged around the periphery of the bottom wall of the door lock installation groove 23. The first side wall 231 is connected to the side wall of the second installation groove 22 at an angle, the first side wall 231 and the second side wall 232 are connected at an angle, the second side wall 232 is tangent to the side wall of the second installation groove 22, and the door lock installation seat 8 is respectively fitted with the bottom wall of the door lock installation groove 23 and the second side wall 232. In this arrangement, when the door lock is subjected to tension, it is transmitted to the second side wall 232 and the second frame 32. When the second side wall 232 is subjected to force, one side can be effectively distributed to the side wall of the second installation groove 22, and the other side can also be transmitted to the side wall of the second installation groove 22 through the first side wall 231. The side wall of the second installation groove 22 is supported by the second frame 32 and has strong strength and rigidity, so it can ensure that the vehicle door has a high structural strength at the door lock installation location.

[0046] Optionally, the lightweight door further includes a door interior panel 4, which covers the inner surface of the inner panel 2. The door interior panel 4 can ensure the beauty of the door interior and further enhance the overall strength of the door. Preferably, the door interior panel 4 is made of polypropylene material.

[0047] This embodiment also provides a commercial vehicle, including the lightweight door in the above solution.

[0048] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A lightweight vehicle door, comprising an outer panel (1), an inner panel (2), and a frame (3) located between the outer panel (1) and the inner panel (2), wherein the upper portion of the outer panel (1) and the upper portion of the inner panel (2) constitute a window frame (10), and the lower portion of the outer panel (1) and the lower portion of the inner panel (2) constitute a vehicle door body (20), characterized in that: The inner panel (2) is provided with a first mounting groove (21) and a second mounting groove (22) connected to the first mounting groove (21), the first mounting groove (21) and the second mounting groove (22) are both closed by the outer panel (1), the first mounting groove (21) extends along the left side of the window frame (10), the top side of the window frame (10) and the right side of the window frame (10) in sequence, the second mounting groove (22) extends along the left side of the door body (20), the bottom side of the door body (20) and the right side of the door body (20) in sequence, the frame (3) comprises a first frame (31) arranged in the first mounting groove (21), and a second frame (32) arranged in the second mounting groove (22), two ends of the first frame (31) are respectively connected to two ends of the second frame (32); The inner plate (2) is further provided with a door lock installation groove (23) communicating with the second installation groove (22), the bottom wall of the door lock installation groove (23) being flush with the bottom wall of the second installation groove (22), and the lightweight vehicle door further comprises a door lock installation seat (8) connected to the second frame (32), the door lock installation seat (8) being located in the door lock installation groove (23); The door lock installation groove (23) comprises a first side wall (231) and a second side wall (232) which are sequentially arranged around the outer periphery of the bottom wall of the door lock installation groove (23); the first side wall (231) is connected to the side wall of the second installation groove (22) at an angle; the second side wall (232) is connected to the first side wall (231) at an angle; the second side wall (232) is tangent to the side wall of the second installation groove (22); and the door lock installation seat (8) is respectively fitted with the bottom wall of the door lock installation groove (23) and the second side wall (232).

2. The lightweight vehicle door according to claim 1, characterized in that: The first skeleton (31) has a circular cross-section.

3. The lightweight vehicle door according to claim 1, characterized in that: The cross section of the second frame (32) is square.

4. The lightweight vehicle door according to claim 1, characterized in that: The cross section of the first mounting groove (21) is trapezoidal.

5. The lightweight vehicle door according to claim 1, characterized in that: The first frame (31) and the second frame (32) are both made of aluminum.

6. The lightweight vehicle door according to claim 1, characterized in that: The outer panel (1) and the inner panel (2) are both made of carbon fiber composite material.

7. The lightweight vehicle door according to claim 1, characterized in that: The lightweight vehicle door further comprises a first connection block (5), a second connection block (6) and a third connection block (7) which are distributed in a triangular shape, wherein the first connection block (5) connects the second frame (32) and the inner panel (2), the second connection block (6) connects the first frame (31) and the inner panel (2), the third connection block (7) connects the inner panel (2), and the third connection block (7) is connected to the connection between the first frame (31) and the second frame (32).

8. The lightweight vehicle door according to any one of claims 1 to 7, characterized in that: The lightweight vehicle door also includes a door interior trim panel (4), and the door interior trim panel (4) covers the inner surface of the inner panel (2).

9. A commercial vehicle, characterized in that: A lightweight vehicle door comprising the lightweight vehicle door described in any one of claims 1 to 8.

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