Lightweight structure of framed vehicle door
By using "sandwich" structural design with lightweight materials such as plastic and aluminum alloy on the door, combined with integrated millimeter wave radar, electronic rearview mirrors and self-priming locks, the problem of difficult to take into account both the stability and safety of the door structure is solved, and a 20% reduction in the weight of the door system and the improvement of safety performance are achieved.
Patent Information
- Application Number
- CN202421415687.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-06-20
AI Technical Summary
While pursuing lightweight, the existing door structure is difficult to take into account both structural stability and safety, and the weight reduction effect is not ideal.
It adopts a "sandwich" structural design, including plastic door exterior panels, aluminum alloy door skeletons and door interiors, through riveting connection, and a sealing device is installed on the door and window frames, integrating millimeter wave radar, electronic rearview mirror and self-priming lock.
Effectively reduce the weight of the door system by 20%, improve the structural stability and safety of the door, enhance shock resistance and impact resistance, and improve the safety performance of the vehicle.
Smart Images

Figure CN222591206U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of vehicle doors, in particular to a lightweight structure of a framed vehicle door. Background Art
[0002] As an important design indicator, automobile lightweighting plays an important role in improving automobile fuel economy. Automobile lightweighting is still one of the main trends in the future development of the automobile industry. The application demand for frameless doors is also increasing day by day.
[0003] As energy conservation and emission reduction requirements become more stringent, research on automobile lightweighting is becoming more and more important. At present, the main idea of automobile lightweighting technology is: under the premise of taking into account product performance and cost, use lightweight materials, new molding processes and structural optimization to reduce the weight of automobile products as much as possible to achieve the purpose of weight reduction and consumption reduction. As a part of the body, the weight of the door accounts for about 15% of the body weight, and its lightweight degree has a direct impact on the lightweight effect of the car. Utility Model Content
[0004] The utility model aims to provide a lightweight structure of a framed vehicle door which solves the above-mentioned problem.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A lightweight structure of a framed vehicle door, comprising a door outer panel, a door frame and a door interior, wherein the door frame is arranged between the door outer panel and the door interior, the inner and outer sides of the door frame are respectively connected to the door outer panel and the door interior, the door outer panel and the door interior are riveted, and a door and window frame is arranged between the door outer panel and the door frame; the door outer panel is made of plastic material, the door frame is made of aluminum alloy material, and the door and window frame is made of one of iron or aluminum alloy material; it also includes a rearview mirror and a self-priming lock arranged on the door outer panel, and a millimeter-wave radar and a vehicle glass arranged between the door outer panel and the door interior.
[0007] Preferably, the door outer panel and the door interior are both provided with corresponding prefabricated holes, and the door outer panel and the door interior are riveted together by rivets.
[0008] Preferably, the material of the vehicle door outer panel is PP, EDM and TM.
[0009] Preferably, the door frame is an integrated press-molded member.
[0010] Preferably, the exterior of the door interior is covered with leather.
[0011] Preferably, the door frame is connected to the door outer panel and the door interior respectively by means of adhesive bonding.
[0012] Preferably, a sealing device for sealing the vehicle glass is provided on the door and window frame, and the sealing device is a movable arc-shaped portion.
[0013] The beneficial effects of the utility model are as follows: the utility model effectively reduces the weight of the door system by 20% by adopting lightweight materials such as plastic and aluminum alloy, thereby achieving lightweighting of the vehicle. The "sandwich" structural design of the door outer panel, door frame and door interior ensures the structural stability and safety of the door, and the plastic door outer panel and aluminum alloy door frame can maintain sufficient rigidity and strength when subjected to external forces. The molding process of plastic has more diverse structures and appearances than steel stamping, providing more possibilities for the exterior design of the vehicle. By integrating millimeter-wave radar, electronic rearview mirror and self-priming lock, the safety performance of the vehicle is improved, and the vehicle's surrounding environment can be monitored and timely safety warnings can be provided. The pull-riveted riveting of the door outer panel and the door interior is simpler and firmer, which improves the seismic resistance and impact resistance of the door. The door and window frames are made of iron or aluminum materials to achieve diversity. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0015] Figure 2 It is a front view structural schematic diagram of the utility model;
[0016] Figure 3 It is a left-side structural schematic diagram of the utility model;
[0017] Figure 4 It is a rear view structural schematic diagram of the utility model;
[0018] Figure 5 yes Figure 4 Schematic diagram of the structure in the middle AA direction;
[0019] Figure 6 yes Figure 5 A is a schematic diagram of the partially enlarged structure of the middle part;
[0020] Figure 7 yes Figure 5 Schematic diagram of the partially enlarged structure of B. DETAILED DESCRIPTION
[0021] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.
[0022] In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.
[0023] like Figures 1 to 7 As shown, the utility model provides a lightweight structure of a framed door, including a door outer panel 1, a door frame 2 and a door interior 3, wherein the door frame 2 is arranged between the door outer panel 1 and the door interior 3, and the inner and outer sides of the door frame 2 are respectively connected to the door outer panel 1 and the door interior 3 by adhesive bonding. The door outer panel 1 and the door interior 3 are riveted, wherein the door outer panel 1 and the door interior 3 are both provided with corresponding prefabricated holes 9, and the door outer panel 1 and the door interior 3 are riveted by rivets 10, so that the connection method is simpler and firmer, and the shock resistance and impact resistance of the door are improved. A door window frame 11 is arranged between the door outer panel 1 and the door frame 2. The material of the door outer panel 1 is plastic material, specifically PP polypropylene, PEDM ethylene propylene diene monomer rubber and 20% TM talcum powder. The material of the door frame 2 is aluminum alloy, and the door frame 2 is an integrated press molding, and the original anti-collision beam structure is cancelled. The exterior of the door interior 3 is covered with leather, and the door window frame 11 is one of iron or aluminum alloy materials, so as to achieve diversity.
[0024] It also includes an electronic rearview mirror 4 and a self-priming lock 5 arranged on the door outer panel 1, and a millimeter wave radar 6 and a vehicle glass 7 arranged between the door outer panel 1 and the door interior 3.
[0025] A sealing device for sealing the vehicle glass 7 is provided on the door and window frame 11 , and the sealing device is an elastic and movable arc-shaped portion 8 .
[0026] The utility model uses lightweight materials such as plastic and aluminum alloy to effectively reduce the weight of the door system by 20%, thereby achieving lightweighting of the vehicle. The "sandwich" structural design of the door outer panel 1, the door frame 2 and the door interior 3 ensures the structural stability and safety of the door. The plastic door outer panel 1 and the aluminum alloy door frame 2 can maintain sufficient rigidity and strength when subjected to external forces. The molding process of plastic has more diverse structures and appearances than steel stamping, providing more possibilities for the exterior design of the vehicle. By integrating millimeter wave radar 6, electronic rearview mirror 4 and self-priming lock 5, the safety performance of the vehicle is improved, and the vehicle's surrounding environment can be monitored and timely safety warnings can be provided. The pull-riveted riveting of the door outer panel 1 and the door interior 3 is simpler and more secure, which improves the shock resistance and impact resistance of the door. The door and window frame 11 is made of iron or aluminum material to achieve diversity.
[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A lightweight structure of a framed vehicle door, comprising a door outer panel, a door frame and a door interior, characterized in that: The door frame is arranged between the door outer panel and the door interior, the inner and outer sides of the door frame are respectively connected to the door outer panel and the door interior, the door outer panel and the door interior are riveted, and a door and window frame is arranged between the door outer panel and the door frame; the material of the door outer panel is plastic material, the material of the door frame is aluminum alloy material, and the door and window frame is one of iron or aluminum alloy material; it also includes a rearview mirror and a self-priming lock arranged on the door outer panel, and a millimeter wave radar and car glass arranged between the door outer panel and the door interior.
2. The lightweight structure of a framed vehicle door according to claim 1, characterized in that: The door outer panel and the door interior are both provided with corresponding prefabricated holes, and the door outer panel and the door interior are riveted together by rivets.
3. The lightweight structure of a framed vehicle door according to claim 1, characterized in that: The materials of the door outer panel are PP, EDM and TM.
4. The lightweight structure of a framed vehicle door according to claim 1, characterized in that: The door frame is an integrated press-molded structure.
5. The lightweight structure of a framed vehicle door according to claim 1, characterized in that: The exterior of the door interior is covered with leather.
6. The lightweight structure of a framed vehicle door according to claim 3, characterized in that: The door frame is connected to the door outer panel and the door interior respectively by means of adhesive bonding.
7. The lightweight structure of a framed vehicle door according to claim 3, characterized in that: The door and window frame is provided with a sealing device for sealing the vehicle glass, and the sealing device is a movable arc-shaped portion.