Commercial vehicle door structure and vehicle

Through integrated die-casting process and light alloy materials, the problem of excessive weight of commercial vehicle door structures is solved, lightweight and structural strength are improved, and cab occupants are protected.

CN223131777UActive Publication Date: 2025-07-22ZHIZI AUTOMOTIVE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202422569110.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-23
Publication Date
2025-07-22
Estimated Expiration
2034-10-23

AI Technical Summary

Technical Problem

There are many structural components of existing commercial vehicles, resulting in heavier overall weight and does not meet the lightweight design requirements.

Method used

The integrated die-casting process is adopted, and the door inner panel made of magnesium alloy and the door outer panel and inner panel support assembly are used, and the door lock, rearview mirror, and glass lifter installation structure is integrated to enhance the overall strength and stiffness of the door structure.

Benefits of technology

It realizes the lightweight design of the car door, improves structural strength and stiffness, reduces the quality of the entire vehicle, and provides effective protection for cab occupants.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of commercial vehicles, in particular to a commercial vehicle door structure and a vehicle. The commercial vehicle door structure comprises a vehicle door outer plate, a vehicle door inner plate and an inner plate supporting assembly; the automobile door inner plate is integrally formed in a die-casting mode, and a door lock installation structure, a rearview mirror installation structure, a glass lifter installation structure and a reinforcing plate installation structure are integrated on the automobile door inner plate. The automobile door inner plate and the automobile door outer plate are buckled to form a cavity. The inner plate supporting assembly is installed in the cavity and used for supporting the automobile door outer plate. According to the embodiment of the invention, by improving the structure of the vehicle door, the design requirement of light weight is met under the requirement of ensuring the overall strength and rigidity of the vehicle door.
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Description

Technical Field

[0001] The present application relates to the technical field of commercial vehicles, and more particularly, to a commercial vehicle door structure and a vehicle. Background Art

[0002] Due to the needs of environmental protection and energy conservation, the lightweighting of automobiles has become a trend in the development of the world's automotive industry. It not only responds to the environmental protection requirements of energy conservation and emission reduction but also meets the market's demand for efficient and economical commercial vehicles. Among them, as an important component of commercial vehicles, the lightweight level of automobile doors is crucial for the entire vehicle. The existing commercial vehicle door structures provided by the prior art have more components, resulting in a relatively heavy overall weight of the door, which does not meet the lightweight design requirements. Summary of the Utility Model

[0003] The purpose of the present application is to provide a commercial vehicle door structure and a vehicle, which achieve the lightweight design requirements by improving the door structure while ensuring the overall strength and stiffness requirements of the door.

[0004] The embodiments of the present application are implemented as follows:

[0005] The embodiments of the present application provide a commercial vehicle door structure, including an outer door panel, an inner door panel, and an inner panel support assembly; the inner door panel is integrally die-cast, and a door lock installation structure, a rearview mirror installation structure, a window regulator installation structure, and a reinforcement plate installation structure are integrated on the inner door panel; the inner door panel and the outer door panel are buckled to form a cavity; the inner panel support assembly is installed in the cavity to support the outer door panel.

[0006] As an optional implementation manner, the outer door panel and the inner panel support assembly are made of aluminum alloy; the inner door panel is made of magnesium alloy.

[0007] As an optional implementation manner, the inner panel support assembly includes a first reinforcement member horizontally arranged and connected to both sides of the inner door panel at both ends, and a second reinforcement member disposed below the first reinforcement member.

[0008] As an optional implementation manner, the second reinforcement member includes a first rib plate and a second rib plate; the first rib plate is disposed at a preset angle with the horizontal direction and is connected to the inner door panel at both ends; one end of the second rib plate is connected to the inner door panel, and the other end is connected to the middle part of the first rib plate; the first rib plate and the second rib plate form a Y-shaped structure.

[0009] As an alternative embodiment, the second reinforcing structure further includes a handle reinforcing rib; a door hinge mounting structure connected to the vehicle body is integrally provided on the inner door panel, and the handle reinforcing rib is connected to one end of the first rib away from the door hinge mounting structure.

[0010] As an alternative embodiment, one end of the first rib close to the door hinge mounting structure is away from the first reinforcing structure, and one end of the first rib away from the door hinge mounting structure is close to the first reinforcing structure; the second rib is arranged on the upper side of the first rib, and the handle reinforcing rib is arranged on the lower side of the first rib.

[0011] As an alternative embodiment, a glass window is provided at a position above the first reinforcing structure between the outer door panel and the inner door panel; a window guide rail assembly is clamped between the outer door panel and the inner door panel, and the window guide rail assembly is used to guide the window glass from the lower side of the glass window to the glass window.

[0012] As an alternative embodiment, the window guide rail assembly includes a front guide rail provided on one side of the glass window and a rear guide rail provided on the other side of the glass window; both the front guide rail and the rear guide rail can be arranged in the up and down direction.

[0013] As an alternative embodiment, a lower glass guide rail is installed below the glass window and close to one side of the front guide rail, and the lower glass guide rail is arranged in the up and down direction; the upper edge of the glass window is provided with an upper glass guide rail extending in the horizontal direction.

[0014] As an alternative embodiment, the inner surface of the inner door panel has integrally die-cast reinforcing ribs.

[0015] The beneficial effects of the embodiments of the present application include:

[0016] The embodiments of the present application provide a commercial vehicle door structure, including an outer door panel, an inner door panel, and an inner panel support assembly; the inner door panel is integrally die-cast, and a door mounting structure, a rearview mirror mounting structure, and a window lifter mounting structure are integrated on the inner door panel; the inner door panel and the outer door panel are buckled to form a chamber; the inner panel support assembly is installed in the chamber to support the outer door panel. By integrally die-casting the inner door panel, the embodiments of the present application can greatly reduce the components of the door and achieve lightweight design while ensuring structural strength.

[0017] The embodiment of the present application also provides a vehicle, including a vehicle body and the above-mentioned commercial vehicle door structure. In the embodiment of the present application, the above-mentioned commercial vehicle door structure is installed on the cab of the vehicle body. It not only has excellent structural strength and can provide good protection for the cab occupants, but also is conducive to realizing the lightweight design of the whole vehicle and reducing the mass of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0019] Figure 1 It is one of the structural schematic diagrams of the commercial vehicle door structure according to the embodiment of the present application;

[0020] Figure 2 It is the second structural schematic diagram of the commercial vehicle door structure according to the embodiment of the present application;

[0021] Figure 3 It is the third structural schematic diagram of the commercial vehicle door structure according to the embodiment of the present application;

[0022] Figure 4 It is the fourth structural schematic diagram of the commercial vehicle door structure according to the embodiment of the present application;

[0023] Figure 5 It is the fifth structural schematic diagram of the commercial vehicle door structure according to the embodiment of the present application.

[0024] ICON:

[0025] 100 - Outer door panel; 101 - Inner door panel; 102 - Inner panel support assembly; 103 - First strengthening structural member; 104 - Second strengthening structural member; 105 - First rib plate; 106 - Second rib plate; 107 - Handle part strengthening rib plate; 108 - Glass window; 109 - Front guide rail; 110 - Rear guide rail; 111 - Lower glass guide rail; 112 - Upper glass guide rail. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Usually, the components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Accordingly, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the scope of protection of the present application.

[0028] It should be noted that: like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be construed as indicating or implying relative importance.

[0029] In the description of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "arranged", "installed", "connected", and "coupled" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0030] Due to the needs of environmental protection and energy conservation, the lightweighting of automobiles has become a trend in the development of the world's automotive industry. It not only responds to the environmental requirements of energy conservation and emission reduction but also meets the market's demand for efficient and economical commercial vehicles. Among them, as an important component of commercial vehicles, the lightweight level of automobile doors is crucial for the whole vehicle. The existing technology provides commercial vehicle door structures with more components, resulting in a heavier overall weight of the door, which does not meet the design requirements of lightweighting.

[0031] To solve the above technical problems, the embodiments of the present application provide a commercial vehicle door structure and a vehicle.

[0032] Referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 as shown, the embodiments of the present application provide a commercial vehicle door structure, including an outer door panel 100, an inner door panel 101, and an inner panel support assembly 102; the inner door panel 101 is integrally die-cast, and a door lock installation structure, a rearview mirror installation structure, a window regulator installation structure, and a reinforcement plate installation structure are integrated on the inner door panel 101; the inner door panel 101 and the outer door panel 100 are buckled to form a cavity; the inner panel support assembly 102 is installed in the cavity to support the outer door panel 100.

[0033] It should be noted that traditional commercial vehicle doors mainly use ordinary steel plates. The density of steel is about 3 times that of aluminum alloy and 4 times that of magnesium alloy, resulting in a relatively low level of lightweighting.

[0034] It should be noted that the outer door panel 100 and the inner panel support assembly 102 of the embodiments of the present application are made of aluminum alloy; the inner door panel 101 is made of magnesium alloy. Compared with the prior art, the embodiments of the present application provide a commercial vehicle door structure that meets the lightweight requirements. It adopts an integrated die-casting process, materials of magnesium alloy and aluminum alloy, and an innovative design structure to improve the overall strength and stiffness of the door while achieving product lightweighting.

[0035] It should be noted that the first strengthening structure member 103 and the second strengthening structure member 104 in the embodiments of the present application are aluminum alloy structural members formed by stamping. Compared with steel structures, the first strengthening structure member 103 and the second strengthening structure member 104 have lighter weights.

[0036] Refer to Figure 2 、 Figure 4 As shown, in the embodiments of the present application, the first strengthening structure member 103 is arranged in the horizontal direction, that is, the first strengthening structure member 103 is arranged along the traveling direction of the vehicle. It can not only enhance the structural strength of the entire door structure in the horizontal direction but also improve the resistance of the door to lateral destructive forces. When the door structure is laterally impacted, it can reduce the degree of damage to the door structure and prevent large depressions from occurring on the door structure.

[0037] It should be noted that the first strengthening structure member 103 of the embodiments of the present application is arranged at the middle position of the entire door structure. The second strengthening structure member 104 of the embodiments of the present application is arranged below the first strengthening structure member 103 to enhance the structural strength of the lower part of the door structure.

[0038] The embodiments of the present application provide a commercial vehicle door structure, including an outer door panel 100, an inner door panel 101, and an inner panel support assembly 102. In the embodiments of the present application, a concave structure is formed on the inner door panel 101, and the outer door panel 100 is buckled on the inner door panel 101 to block the concave structure; the inner panel support assembly 102 of the embodiments of the present application is installed in the concave structure to support the inner door panel 101 and the outer door panel 100, thereby improving the strength of the door structure.

[0039] Among them, the inner panel support assembly 102 of the embodiments of the present application includes a first strengthening structure member 103 arranged horizontally and connected to both sides of the inner door panel 101 at both ends, and a second strengthening structure member 104 arranged below the first strengthening structure member 103.

[0040] Compared with the prior art, in the embodiment of the present application, the first strengthening structural member 103 and the second strengthening structural member 104 can achieve the lightweight design requirement while ensuring the overall strength and stiffness requirements of the vehicle door. Among them, the first strengthening structural member 103 of the embodiment of the present application is arranged in the horizontal direction, which can greatly enhance the strength of the entire vehicle door structure in the vehicle traveling direction. By arranging the second strengthening structural member 104 below the first strengthening structural member 103, the structural strength of the entire vehicle door structure on the side can be effectively enhanced, and the resistance of the vehicle door to lateral impact force can be improved.

[0041] Furthermore, the inner panel 101 of the vehicle door in the embodiment of the present application is an integrally die-cast magnesium alloy part. By using the integrally die-casting process, multiple parts such as the inner panel 101 of the traditional-structured vehicle door, the hinge reinforcement plate, the door lock reinforcement plate, the rearview mirror reinforcement plate, and the lower trim plate reinforcement plate are integrated into one part. The thickness of the material of each area of the inner panel 101 is designed to match the actual working conditions, and technologies such as topology optimization and multi-objective optimization are applied to achieve the optimal design of the material thickness of the part.

[0042] Furthermore, reinforcing ribs are arranged on the inner surface of the inner panel 101 of the vehicle door in the embodiment of the present application, and are optimized through topography optimization to achieve the optimal material distribution, so as to improve the overall stiffness and strength of the vehicle door. And these reinforcing ribs can assist the flow of molten metal during the part forming process, improving the forming performance.

[0043] Through the above settings, the embodiment of the present application can greatly improve the structural strength of the entire commercial vehicle door structure, and while achieving the lightweight design goal, can effectively protect the occupants in the cab.

[0044] Refer to Figure 1 、 Figure 5 As shown, as an optional implementation manner, the second strengthening structural member 104 includes a first rib plate 105 and a second rib plate 106; the first rib plate 105 is at a preset angle with the horizontal direction, and both ends are respectively connected to the inner panel 101 of the vehicle door; one end of the second rib plate 106 is connected to the inner panel 101 of the vehicle door, and the other end is connected to the middle part of the first rib plate 105; the first rib plate 105 and the second rib plate 106 form a Y-shaped structure.

[0045] Refer to Figure 4 、 Figure 5 As shown, furthermore, the second strengthening structural member 104 of the embodiment of the present application is integrally in a Y-shaped structure, formed by connecting the first rib plate 105 and the second rib plate 106.

[0046] Refer to Figure 1As shown, as an alternative implementation, the second reinforcement member 104 further includes a handle reinforcement rib 107; a door hinge mounting structure for connecting to the vehicle frame is provided on the inner door panel 101, and the handle reinforcement rib 107 is connected to one end of the first rib 105 away from the door hinge mounting structure.

[0047] In the embodiment of the present application, the structural strength of the door handle part of the door structure can be effectively enhanced through the provision of the handle reinforcement rib 107. The second reinforcement member 104 in the embodiment of the present application has fewer component structures, which is beneficial to further reducing the weight of the door structure.

[0048] Specifically, one end of the first rib 105 close to the door hinge mounting structure is away from the first reinforcement member 103, and one end of the first rib 105 away from the door hinge mounting structure is close to the first reinforcement member 103; the second rib 106 is arranged on the upper side of the first rib 105, and the handle reinforcement rib 107 is arranged on the lower side of the first rib 105.

[0049] It should be noted that the inner door panel 101 is connected to the first reinforcement member 103, the first rib 105, the second rib 106, and the handle reinforcement rib 107 by bolts.

[0050] It should be noted that the second reinforcement member 104 in the embodiment of the present application includes a first rib 105, a second rib 106, and a handle reinforcement rib 107, and the three components are connected by riveting. According to requirements, the first rib 105, the second rib 106, and the handle reinforcement rib 107 can also be reliably connected by other fixed connection methods.

[0051] Refer to Figure 2 、 Figure 3 As shown, as an alternative implementation, a glass window 108 is provided at the position above the first reinforcement member 103 on the outer door panel 100 and the inner door panel 101; a window guide assembly is clamped between the outer door panel 100 and the inner door panel 101, and the window guide assembly is used to guide the window glass from below the glass window 108 to the glass window 108.

[0052] Among them, refer to Figure 1 As shown, the window guide assembly includes a front guide rail 109 provided on one side of the glass window 108 and a rear guide rail 110 provided on the other side of the glass window 108; both the front guide rail 109 and the rear guide rail 110 can be arranged in the up and down direction.

[0053] Among them, refer to Figure 1 As shown, a lower glass guide rail 111 is installed below the glass window 108 and close to one side of the front guide rail 109, and the lower glass guide rail 111 is arranged in the up and down direction; the upper edge of the glass window 108 is provided with an upper glass guide rail 112 extending in the horizontal direction.

[0054] In the embodiments of the present application, to solve the connection problem between the window guide rail assembly made of aluminum alloy and the door inner panel 101 made of magnesium alloy, the front guide rail 109, the rear guide rail 110, the lower glass guide rail 111, and the upper glass guide rail 112 are all designed in a C shape.

[0055] Among them, the front guide rail 109, the rear guide rail 110, the lower glass guide rail 111, and the upper glass guide rail 112 in the embodiments of the present application are fixedly connected to the door inner panel 101 by riveting, ensuring the connection reliability of the front guide rail 109, the rear guide rail 110, the lower glass guide rail 111, and the upper glass guide rail 112.

[0056] As an alternative embodiment, there is a gap between the lower glass guide rail 111 and the front guide rail 109; the rear guide rail 110 extends downward so that the projection of the rear guide rail 110 in the horizontal direction falls on the gap.

[0057] Furthermore, the gap between the lower glass guide rail 111 and the front guide rail 109 in the embodiments of the present application is beneficial to shortening the extension length of the guide rail material. Among them, the lower glass guide rail 111 and the front guide rail 109 can also be set as one guide rail according to needs. Only one rear guide rail 110 is provided at the rear side of the window in the embodiments of the present application, which is convenient for shortening the guide rail length and reducing the structural weight. In the embodiments of the present application, the downward extension of the rear guide rail 110 ensures that the entire window guide rail assembly can reliably guide the window glass.

[0058] The embodiments of the present application also provide a vehicle, including a vehicle body and the above-mentioned commercial vehicle door structure.

[0059] It should be noted that the above-mentioned commercial vehicle door structure is installed on the cab of the vehicle body in the embodiments of the present application. It not only has excellent structural strength and can provide good protection for the cab occupants. It is also beneficial to realize the lightweight design of the whole vehicle and reduce the mass of the whole vehicle.

[0060] It should be noted that the door inner panel 101 in the embodiments of the present application uses magnesium alloy and an integrated die-casting process, and the door outer panel 100 and the internal first strengthening structure member 103 and second strengthening structure member 104 use aluminum alloy materials. Through the combination of advanced processes and lightweight alloys, compared with traditional steel doors, the number of parts is greatly reduced. On the premise of improving the stiffness and strength performance, the weight of the parts is reduced by 40% compared with the traditional structure at the same time, and the lightweight level is greatly improved.

[0061] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A commercial vehicle door structure, characterized in that, It includes an outer door panel (100), an inner door panel (101), and an inner panel support assembly (102); the inner door panel (101) is integrally die-cast, and a door lock installation structure, a rearview mirror installation structure, a window regulator installation structure, and a reinforcement plate installation structure are integrated on the inner door panel (101); the inner door panel (101) and the outer door panel (100) are buckled to form a chamber; the inner panel support assembly (102) is installed in the chamber to support the outer door panel (100).

2. The commercial vehicle door structure according to claim 1, wherein, The outer door panel (100) and the inner panel support assembly (102) are made of aluminum alloy; the inner door panel (101) is made of magnesium alloy.

3. The commercial vehicle door structure according to claim 1, characterized in that, The inner panel support assembly (102) includes a first reinforcement member (103) arranged horizontally and connected to both sides of the inner door panel (101) at both ends, and a second reinforcement member (104) arranged below the first reinforcement member (103).

4. The commercial vehicle door structure according to claim 3, characterized in that, The second reinforcement member (104) includes a first rib plate (105) and a second rib plate (106); the first rib plate (105) has a preset angle with the horizontal direction, and both ends are respectively connected to the inner door panel (101); one end of the second rib plate (106) is connected to the inner door panel (101), and the other end is connected to the middle part of the first rib plate (105); the first rib plate (105) and the second rib plate (106) form a Y-shaped structure.

5. The commercial vehicle door structure according to claim 4, characterized in that, The second reinforcement member (104) further includes a handle part reinforcement rib plate (107); a door hinge installation structure connected to the vehicle body is integrally provided on the inner door panel (101), and the handle part reinforcement rib plate (107) is connected to the end of the first rib plate (105) away from the door hinge installation structure.

6. The commercial vehicle door structure according to claim 5, characterized in that, One end of the first rib plate (105) close to the door hinge installation structure is away from the first reinforcement member (103), and one end of the first rib plate (105) away from the door hinge installation structure is close to the first reinforcement member (103); the second rib plate (106) is arranged on the upper side of the first rib plate (105), and the handle part reinforcement rib plate (107) is arranged on the lower side of the first rib plate (105).

7. The commercial vehicle door structure according to any one of claims 3-6, characterized in that, A glass window (108) is opened at the position above the first reinforcement member (103) between the outer door panel (100) and the inner door panel (101); a window guide rail assembly is clamped between the outer door panel (100) and the inner door panel (101), and the window guide rail assembly is used to guide the window glass from the lower side of the glass window (108) to the glass window (108).

8. The commercial vehicle door structure according to claim 7, wherein, The window guide rail assembly includes a front guide rail (109) arranged on one side of the glass window (108) and a rear guide rail (110) arranged on the other side of the glass window (108); both the front guide rail (109) and the rear guide rail (110) can be arranged in the up and down direction.

9. The commercial vehicle door structure according to claim 7, wherein, A lower glass guide rail (111) is installed below the glass window (108) and close to one side of the front guide rail (109), and the lower glass guide rail (111) is arranged in the vertical direction; an upper glass guide rail (112) extending in the horizontal direction is provided at the upper edge of the glass window (108).

10. A vehicle, characterized in that, It includes a vehicle body and the commercial vehicle door structure according to any one of claims 1-9.