Automobile door assembly

Through the integrated molding design of the inner and outer door panels, waist beams and anti-collision beams, combined with laser welding and continuous fiber reinforced materials, the existing automobile door assembly is solved, and the lightweight and high-strength door assembly is achieved.

CN223237338UActive Publication Date: 2025-08-19NINGBO XINTAI MACHINERY
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Patent Information

Application Number
CN202421998204.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-16
Publication Date
2025-08-19
Estimated Expiration
2034-08-16

AI Technical Summary

Technical Problem

The parts of existing car door assembly are cumbersome and have a large weight, which affects installation convenience and overall strength.

Method used

The inner door panel, inner waist beam and reinforcement are integrally formed, and the outer door panel, outer waist beam and anti-collision beam are integrally formed, using continuous fiber reinforced thermoplastic composite materials and thermoplastic resin parts, which are connected by laser welding, eliminating multi-channel assembly processes.

Benefits of technology

The manufacturing process is simplified, the overall strength and concave resistance of the car door are improved, the weight is reduced, and the installation and opening and closing are facilitated.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an automobile door assembly, which belongs to the technical field of automobile parts and comprises an inner door sub-assembly, an outer door sub-assembly, an outer door sub-assembly, an outer door sub-assembly, an outer door sub-assembly and an inner door sub-assembly, the outer door sub-assembly is connected with the inner door sub-assembly, the outer door sub-assembly is provided with an outer door plate, an outer waist beam and an anti-collision beam, and the outer door plate, the outer waist beam and the anti-collision beam are integrally formed. The automobile door assembly has the advantages that the inner door plate, the inner waist beam and the reinforcing piece are integrally formed to form the inner door sub-assembly, the outer door plate, the outer waist beam and the anti-collision beam are integrally formed to form the outer door sub-assembly, and therefore on the basis that it is guaranteed that the automobile door assembly has the original functions of corresponding parts, multiple part assembling procedures are omitted, and manufacturing is convenient and easy.
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Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts and components, and relates to an automobile door assembly. Background Art

[0002] The car door assembly provides a passage for the driver and passengers to enter and exit the vehicle, isolates the interference outside the vehicle, reduces side impact to a certain extent, and protects the occupants. The most important factors affecting the quality of the car door are that the car door assembly should be strong and easy to install.

[0003] The main structures of the current automobile door assembly include the inner door panel, inner waist beam, reinforcement, outer door panel, outer waist beam and anti-collision beam. Each component needs to be installed separately and needs to be installed through various different connection methods such as bonding and screwing. The installation is cumbersome, and the entire automobile door assembly is heavy, leaving much room for improvement. Summary of the Invention

[0004] The purpose of the utility model is to address the above-mentioned problems existing in the prior art and to propose an automobile door assembly.

[0005] The purpose of the utility model can be achieved through the following technical solutions: A car door assembly, comprising:

[0006] Inner door sub-assembly;

[0007] The outer door subassembly is connected to the inner door subassembly. The outer door subassembly comprises an outer door panel and at least one anti-collision beam. The outer door panel and the anti-collision beam are formed as one piece.

[0008] In the above-mentioned automobile door assembly, the inner door sub-assembly comprises an inner door panel, an inner waist beam and a reinforcement member, and the inner door panel, the inner waist beam and the reinforcement member are integrally formed.

[0009] In the above-mentioned automobile door assembly, the outer door sub-assembly further includes an outer waist beam, and the outer door panel, the outer waist beam and the anti-collision beam are integrally formed.

[0010] In the above-mentioned automobile door assembly, the inner door sub-assembly includes a first core portion, and the first core portion is configured as a continuous fiber reinforced thermoplastic composite part.

[0011] In the above-mentioned automobile door assembly, the inner door sub-assembly also includes a first reinforcement portion, which is connected to the first core portion and is located on a side of the first core portion away from the outer door sub-assembly, and the first reinforcement portion is configured as a thermoplastic resin part, and the first core portion and the first reinforcement portion are an integrally molded injection molded part.

[0012] In the above-mentioned automobile door assembly, the inner door sub-assembly further includes a first appearance portion, the first appearance portion is connected to the first reinforcement portion, and the first appearance portion is configured as a paint layer or a polyurethane part.

[0013] In the above-mentioned automobile door assembly, the inner door sub-assembly further includes an insert portion, which is connected to the first core portion and is located on a side of the first core portion close to the outer door sub-assembly, and the insert portion is configured as an aluminum part.

[0014] In the above-mentioned automobile door assembly, the inner door sub-assembly also includes a second reinforcement portion, which is connected to the first core portion and is located on the side of the insert portion and / or the first core portion close to the outer door sub-assembly, and the second reinforcement portion is configured as a thermoplastic resin part.

[0015] In the above-mentioned automobile door assembly, the outer door sub-assembly includes a second core portion, and the second core portion is configured as a continuous fiber reinforced thermoplastic composite.

[0016] In the above-mentioned automobile door assembly, the outer door sub-assembly also includes a third reinforcement portion, which is connected to the second core portion and is located on the side of the second core portion away from the inner door sub-assembly. The third reinforcement portion is configured as a thermoplastic resin part, and the second core portion and the third reinforcement portion are an integrally molded injection molded part.

[0017] In the above-mentioned automobile door assembly, the outer door sub-assembly further includes a second appearance portion, the second appearance portion is connected to the third reinforcement portion, and the second appearance portion is configured as a paint layer or a polyurethane part.

[0018] In the above-mentioned automobile door assembly, the inner door subassembly and the outer door subassembly are welded by laser.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. The inner door panel, inner waist beam and reinforcement are integrally formed to form the inner door sub-assembly, while the outer door panel, outer waist beam and anti-collision beam are integrally formed to form the outer door sub-assembly. This ensures that the automobile door assembly has the original functions of the corresponding components while eliminating multiple parts assembly processes, making manufacturing convenient and simple.

[0021] 2. The first core portion is configured as a continuous fiber reinforced thermoplastic composite, which can significantly increase the support force, improve the dent resistance and overall performance of the door, and increase the overall strength of the vehicle door assembly. At the same time, it is lightweight and easy to open, close, and install.

[0022] 3. The first reinforcement portion can improve the overall strength of the automobile door assembly, and the first reinforcement portion being configured as a thermoplastic resin part also facilitates integral compression injection molding of the first core portion and the first reinforcement portion without requiring multiple steps.

[0023] 4. The first appearance part can be divided into two forms. The first is that the first appearance part is a paint layer, that is, the corresponding color of paint is directly applied to the surface of the first reinforcement part; the second is that the first appearance part is a polyurethane part, that is, a polyurethane part of the corresponding color is connected to the surface of the first reinforcement part.

[0024] 5. The aluminum insert is connected to the first core of the continuous fiber reinforced thermoplastic composite material by inserting, thereby ensuring the strength of the inner door subassembly while being lightweight and having little impact on the vehicle door assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural diagram of the automobile door assembly of the present utility model.

[0026] Figure 2 It is a structural schematic diagram of the inner door sub-assembly of the present utility model.

[0027] Figure 3 This is a schematic diagram of the internal structure of the inner door sub-assembly of the present utility model.

[0028] Figure 4 It is a structural schematic diagram of the outer door sub-assembly of the utility model.

[0029] Figure 5 It is a schematic diagram of the internal structure of the outer door sub-assembly of the present utility model.

[0030] In the figure, 100, inner door sub-assembly; 110, inner door panel; 120, inner waist beam; 130, reinforcement; 101, first core portion; 102, first reinforcement portion; 103, first appearance portion; 104, insert portion; 105, second reinforcement portion; 200, outer door sub-assembly; 210, outer door panel; 220, outer waist beam; 230, anti-collision beam; 201, second core portion; 202, third reinforcement portion; 203, second appearance portion. DETAILED DESCRIPTION

[0031] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, terms such as "first," "second," and "an" in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0035] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0036] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0037] like Figure 1-Figure 5 As shown, a car door assembly includes: an inner door sub-assembly 100 and an outer door sub-assembly 200

[0038] The inner door sub-assembly 100 includes an inner door panel 110 , an inner waist beam 120 and a reinforcement 130 , wherein the inner door panel 110 , the inner waist beam 120 and the reinforcement 130 are integrally formed.

[0039] Among them, the reinforcement member 130 is a reinforcement structure required for installing key positions such as door locks and hinges, and its purpose is to ensure the higher strength required at the key positions.

[0040] Among them, the outer door sub-assembly 200 is connected to the inner door sub-assembly 100, and the outer door sub-assembly 200 has an outer door panel 210, an outer waist beam 220 and an anti-collision beam 230. The outer door panel 210, the outer waist beam 220 and the anti-collision beam 230 are integrally formed. Here, there is at least one anti-collision beam 230. If multiple anti-collision beams are used, they can be arranged in a cross or parallel manner. In this embodiment, the inner door panel 110, the inner waist beam 120 and the reinforcement 130 are integrally formed to form the inner door sub-assembly 100, and the outer door panel 210, the outer waist beam 220 and the anti-collision beam 230 are integrally formed to form the outer door sub-assembly 200. Therefore, it is ensured that the automobile door assembly has the original functions of the corresponding components, eliminates multiple parts assembly processes, and is convenient and simple to manufacture.

[0041] like Figure 1-Figure 5 As shown, based on the above embodiment, the inner door sub-assembly 100 includes a first core portion 101, and the first core portion 101 is configured as a continuous fiber reinforced thermoplastic composite.

[0042] In this embodiment, the first core portion 101 is configured as a continuous fiber reinforced thermoplastic composite, which can significantly increase the supporting force of the door rigidity, improve the dent resistance and overall performance, and increase the overall strength of the automobile door assembly. At the same time, it is light in weight and easy to open, close, and install the door.

[0043] like Figure 1-Figure 5 As shown, on the basis of the above embodiment, the inner door sub-assembly 100 also includes a first reinforcement portion 102, which is connected to the first core portion 101 and is located on the side of the first core portion 101 away from the outer door sub-assembly 200, and the first reinforcement portion 102 is configured as a thermoplastic resin part, and the first core portion 101 and the first reinforcement portion 102 are an integral molded injection molded part.

[0044] In this embodiment, the first reinforcement portion 102 can improve the overall strength of the automobile door assembly, and the first reinforcement portion 102 is configured as a thermoplastic resin part, which also facilitates the integral molding of the first core portion 101 and the first reinforcement portion 102 without multiple steps.

[0045] like Figure 1-Figure 5 As shown, based on the above embodiment, the inner door sub-assembly 100 further includes a first appearance portion 103, the first appearance portion 103 is connected to the first reinforcement portion 102, and the first appearance portion 103 is configured as a paint layer or a polyurethane part.

[0046] In this embodiment, the first appearance portion 103 can be divided into two forms. The first is that the first appearance portion 103 is a paint layer, that is, the corresponding color of paint is directly applied to the surface of the first reinforcement portion 102; the second is that the first appearance portion 103 is a polyurethane part, that is, a polyurethane part of the corresponding color is connected to the surface of the first reinforcement portion 102.

[0047] like Figure 1-Figure 5 As shown, based on the above embodiment, the inner door sub-assembly 100 also includes an insert portion 104, which is connected to the first core portion 101 and is located on a side of the first core portion 101 close to the outer door sub-assembly 200, and the insert portion 104 is set to be an aluminum part.

[0048] In this embodiment, the aluminum insert portion 104 is connected to the first core portion 101 of the continuous fiber reinforced thermoplastic composite material by means of an insert, thereby ensuring the strength of the inner door subassembly 100 while being light in weight and having little impact on the automobile door assembly.

[0049] like Figure 1-Figure 5 As shown, based on the above embodiment, the inner door sub-assembly 100 also includes a second reinforcement portion 105, which is connected to the first core portion 101 and is located on the insert portion 104 and / or the first core portion 101 on a side close to the outer door sub-assembly 200, and the second reinforcement portion 105 is configured as a thermoplastic resin part.

[0050] In this embodiment, the second reinforcement portion 105 can improve the overall strength of the automobile door assembly. The second reinforcement portion 105 is configured as a thermoplastic resin part, which is also convenient for connection with the first core portion 101 by insert injection molding or the like.

[0051] like Figure 1-Figure 5 As shown, on the basis of the above embodiment, the outer door sub-assembly 200 includes a second core portion 201, and the second core portion 201 is configured as a continuous fiber reinforced thermoplastic composite.

[0052] In this embodiment, the second core portion 201 is configured as a continuous fiber reinforced thermoplastic composite, which can significantly increase the supporting force on the door rigidity, improve the dent resistance and overall performance, and increase the overall strength of the automobile door assembly. At the same time, it is light in weight and easy to open, close and install the door.

[0053] like Figure 1-Figure 5As shown, on the basis of the above embodiment, the outer door sub-assembly 200 also includes a third reinforcement portion 202, which is connected to the second core portion 201 and is located on the side of the second core portion 201 away from the inner door sub-assembly 100, and the third reinforcement portion 202 is configured as a thermoplastic resin part, and the second core portion 201 and the third reinforcement portion 202 are an integral molded injection molded part.

[0054] In this embodiment, the third reinforcement portion 202 can improve the overall strength of the automobile door assembly, and the third reinforcement portion 202 is configured as a thermoplastic resin part, which also facilitates the integral molding of the second core portion 201 and the third reinforcement portion 202 without multiple steps.

[0055] like Figure 1-Figure 5 As shown, based on the above embodiment, the outer door sub-assembly 200 further includes a second appearance portion 203, the second appearance portion 203 is connected to the third reinforcement portion 202, and the second appearance portion 203 is configured as a paint layer or a polyurethane part.

[0056] In this embodiment, the second appearance portion 203 can be divided into three forms. The first is that the second appearance portion 203 is a paint layer, that is, the corresponding color of paint is directly applied to the surface of the third reinforcement portion 202; the second is that the second appearance portion 203 is a polyurethane part, that is, a polyurethane part of a corresponding color is connected to the surface of the third reinforcement portion 202; the third is that the appearance portion 203 is a combination of a polyurethane part and a paint layer, a polyurethane part is formed on the surface of the third reinforcement portion 202, and then a paint layer is formed on the polyurethane part. This can solve the problem that the special color of the polyurethane layer cannot be processed when used alone, and better solves the appearance color problem.

[0057] like Figure 1-Figure 5 As shown, based on the above embodiment, the inner door subassembly 100 and the outer door subassembly 200 are welded by laser.

[0058] In this embodiment, the inner door sub-assembly 100 and the outer door sub-assembly 200 are laser welded, thereby firmly connecting the inner door sub-assembly 100 and the outer door sub-assembly 200 together without gluing, and the connection strength is high.

Claims

1. An automobile door assembly, characterized in that: include: Inner door sub-assembly; The outer door subassembly is connected to the inner door subassembly. The outer door subassembly comprises an outer door panel and at least one anti-collision beam. The outer door panel and the anti-collision beam are formed as one piece.

2. The automobile door assembly according to claim 1, characterized in that: The inner door sub-assembly comprises an inner door panel, an inner waist beam and a reinforcement member, and the inner door panel, the inner waist beam and the reinforcement member are integrally formed.

3. The automobile door assembly according to claim 1, characterized in that: The outer door sub-assembly also includes an outer waist beam, and the outer door panel, the outer waist beam and the anti-collision beam are integrally formed.

4. The automobile door assembly according to claim 1, characterized in that: The inner door sub-assembly includes a first core portion, which is configured as a continuous fiber reinforced thermoplastic composite.

5. The automobile door assembly according to claim 4, characterized in that: The inner door sub-assembly also includes a first reinforcement portion, which is connected to the first core portion and is located on a side of the first core portion away from the outer door sub-assembly. The first reinforcement portion is configured as a thermoplastic resin part, and the first core portion and the first reinforcement portion are an integrally molded injection molded part.

6. The automobile door assembly according to claim 5, characterized in that: The inner door sub-assembly further includes a first appearance portion, which is connected to the first reinforcement portion and is configured as a paint layer or a polyurethane part.

7. The automobile door assembly according to claim 4, characterized in that: The inner door sub-assembly further includes an insert portion, which is connected to the first core portion and is located on a side of the first core portion close to the outer door sub-assembly, and the insert portion is configured as an aluminum part.

8. The automobile door assembly according to claim 7, characterized in that: The inner door sub-assembly also includes a second reinforcement portion, which is connected to the first core portion and is located on a side of the insert portion and / or the first core portion close to the outer door sub-assembly, and the second reinforcement portion is configured as a thermoplastic resin part.

9. The automobile door assembly according to claim 1, characterized in that: The outer door sub-assembly includes a second core portion, which is configured as a continuous fiber reinforced thermoplastic composite.

10. The automobile door assembly according to claim 9, characterized in that: The outer door sub-assembly also includes a third reinforcement portion, which is connected to the second core portion and is located on a side of the second core portion away from the inner door sub-assembly. The third reinforcement portion is configured as a thermoplastic resin part, and the second core portion and the third reinforcement portion are an integrally molded injection molded part.

11. The automobile door assembly according to claim 10, characterized in that: The outer door sub-assembly further includes a second appearance portion, which is connected to the third reinforcement portion and is configured as a spray paint layer or a polyurethane part.

12. The automobile door assembly according to claim 1, characterized in that: The inner door subassembly and the outer door subassembly are welded by laser.