Vehicle door assembly and vehicle

By adopting a snap-fit ​​shaft and mounting parts and door sheet metal snap-fit ​​structure design in the automotive side door lock system, combined with limit holes and sealing skirts, the problem of high noise in the door lock engagement actuator is solved, achieving effective noise reduction and improved installation efficiency.

CN224187358UActive Publication Date: 2026-05-01MAGNA AUTOMOTIVE PARTS (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MAGNA AUTOMOTIVE PARTS (SUZHOU) CO LTD
Filing Date
2025-03-31
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The door lock actuators in existing automotive side door lock systems are noisy, which affects the user experience.

Method used

The design incorporates a snap-fit ​​shaft that connects to the mounting components and door sheet metal, along with limiting holes and sealing skirts, to reduce noise transmission into the vehicle.

Benefits of technology

The installation efficiency of the door lock engagement actuator has been improved, and the combination of the limiting hole and the sealing skirt effectively reduces the noise transmission into the vehicle, thus improving the noise reduction performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of vehicles, in particular to a vehicle door assembly and a vehicle. The vehicle door assembly comprises a door metal plate, a mounting structure and a door lock suction actuator, the mounting structure is connected with the door metal plate and the door lock suction actuator in a clamped mode, and the mounting assembly comprises a clamping shaft and a mounting piece. Due to the fact that the clamping shaft is connected with the installation piece and the door metal plate in a clamped mode, the installation efficiency of the door lock suction actuator and the door metal plate can be improved, and the sealing skirt edge covers the periphery of the connecting hole of the door metal plate to play a sealing role. In addition, the limiting hole and the communicating hole are matched with each other so that noise of the door lock pull-in actuator can be transmitted into the through hole from the limiting hole, due to the fact that a transmission medium in the through hole is air which is attenuated in the air, the sealing skirt edge can further achieve the noise reduction effect, and the situation that the noise of the door lock pull-in actuator is transmitted into a vehicle through the clamping hole of the door metal plate is reduced.
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Description

A door assembly and a vehicle Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a door assembly and a vehicle. Background Technology

[0002] Existing automotive side door lock systems have numerous electric functions such as electric release, self-closing, and ice breaking, all of which rely on the door lock closing actuator. Because the door lock closing actuator typically uses a motor and gear drive internally and is located near the driver and passenger sides, it generates significant noise, impacting the user experience.

[0003] Therefore, there is an urgent need for a door assembly to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this utility model is to provide a door assembly and vehicle that can improve the noise reduction performance of the door assembly.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] In a first aspect, a vehicle door assembly is provided, including a door sheet metal, a mounting structure, and a door lock engaging actuator, wherein the mounting structure is respectively engaged with the door sheet metal and the door lock engaging actuator, and the mounting structure includes:

[0007] A snap-fit ​​shaft, wherein the snap-fit ​​shaft is provided with a through hole along the axial direction;

[0008] The mounting component has a first end with a slot for engaging with the door lock actuator, and a second end with a limiting hole for the first end of the engaging shaft to pass through and engage with the mounting component. The limiting hole communicates with the through hole. The second end of the mounting component has a compressible sealing skirt for covering the periphery of the connection hole in the door sheet metal. The second end of the engaging shaft engages with the door sheet metal.

[0009] As a preferred technical solution for the aforementioned door assembly, the height of the limiting hole is greater than the height of the portion of the snap-fit ​​shaft extending into the limiting hole.

[0010] As a preferred technical solution for the aforementioned door assembly, the wall of the limiting hole has a protrusion;

[0011] Alternatively, the wall of the limiting hole is covered with a microporous layer.

[0012] As a preferred technical solution for the aforementioned door assembly, the first end of the snap-fit ​​shaft is provided with a first snap-fit ​​member, and the second end of the snap-fit ​​shaft is provided with a second snap-fit ​​member.

[0013] As a preferred technical solution of the above-mentioned door assembly, the first snap-fit ​​member has a first guide slope, and from the first snap-fit ​​member to the second snap-fit ​​member, the first guide slope gradually moves away from the central axis of the mounting member;

[0014] The second snap-fit ​​component has a second guide slope, which gradually approaches the central axis of the mounting component from the first snap-fit ​​component toward the second snap-fit ​​component.

[0015] As a preferred technical solution for the aforementioned door assembly, the mounting component is an integral structure, the snap-fit ​​shaft is an integral structure; and / or, the mounting component is a rubber structural component, and the snap-fit ​​shaft is a plastic component.

[0016] As a preferred technical solution for the aforementioned door assembly, the door lock engagement actuator includes an actuator body, a housing, and a pull cable. The actuator body is located inside the housing, the pull cable passes through the housing and is connected to the actuator body, and a pull cable seal is provided between the pull cable and the housing.

[0017] As a preferred technical solution for the aforementioned door assembly, the outer side wall of the housing is provided with reinforcing ribs.

[0018] As a preferred technical solution for the aforementioned door assembly, the slot is configured as a C-shaped slot distributed circumferentially along the mounting component, and the periphery of the housing is provided with claws, which engage with the slot of the mounting structure.

[0019] In a second aspect, a vehicle is provided, comprising the door assembly described in any of the above embodiments.

[0020] This utility model has at least the following beneficial effects:

[0021] Since the snap-fit ​​shaft snaps into the mounting parts and the door sheet metal respectively, the installation efficiency of the door lock actuator and the door sheet metal can be improved. The sealing skirt covering the periphery of the connection hole of the door sheet metal can play a sealing role. In addition, the limit hole and the through hole cooperate with each other to allow the noise of the door lock actuator to be transmitted from the limit hole to the through hole and attenuated. The sealing skirt can also reduce noise, reducing the noise of the door lock actuator transmitted to the vehicle interior through the snap-fit ​​hole of the door sheet metal. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0023] Figure 1 is a structural schematic diagram of the door assembly provided in an embodiment of the present utility model;

[0024] Figure 2 is a schematic diagram of the installation structure and the door lock suction actuator after installation provided in the embodiment of this utility model.

[0025] Figure 3 is a schematic diagram of the decomposition of Figure 2;

[0026] Figure 4 is a partial cross-sectional view of the installation structure and the door lock suction actuator provided in the embodiment of this utility model after installation;

[0027] Figure 5 is a schematic diagram of the installation structure provided in an embodiment of this utility model;

[0028] Figure 6 is a partial cross-sectional view of the pull wire and the outer shell after installation according to an embodiment of the present invention.

[0029] In the picture:

[0030] 10. Installation structure; 20. Door sheet metal; 30. Door lock engagement actuator;

[0031] 1. Snap-fit ​​shaft; 11. First snap-fit ​​component; 12. Second snap-fit ​​component; 13. Through hole; 2. Mounting component; 21. Snap-fit ​​groove; 22. Limiting hole; 23. Sealing skirt; 24. Arc-shaped limiting block;

[0032] 31. Actuator body; 32. Housing; 321. First housing; 322. Second housing; 323. Reinforcing rib; 324. Claw; 325. Limiting protrusion; 33. Pull cable; 34. Pull cable fixing component;

[0033] 4. Pull-wire seal; 5. Fixing screws. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0038] This utility model provides a door assembly that enables the quick installation of a door lock engagement actuator onto the door sheet metal.

[0039] In this embodiment, "door sheet metal" refers to the inner sheet metal of the car door. The inner sheet metal of the car door and the outer sheet metal of the car door form an installation space for the door lock suction actuator. The door lock suction actuator is located in this installation space and installed on the inner sheet metal of the car door. "Door lock suction actuator" refers to the suction mechanism that controls the car door to close to the side of the car body. Through the suction action of the door lock suction actuator, the car door is completely closed to the side of the car body, reducing the gaps in the side of the car body caused by the car door not being closed.

[0040] Specifically, as shown in Figures 1 to 5, the door assembly includes a door sheet metal 20, a mounting structure 10, and a door lock suction actuator 30. The mounting structure 10 is engaged with the door sheet metal 20 and the door lock suction actuator 30 to achieve the purpose of fixing the door lock suction actuator 30 to the door sheet metal 20. The mounting structure 10 includes a snap-fit ​​shaft 1 and a mounting member 2. The snap-fit ​​shaft 1 is provided with a through hole 13 along the axial direction. The first end of the mounting member 2 has a snap-fit ​​groove 21 that engages with the door lock suction actuator 30. The second end of the mounting member 2 has a limiting hole 22 that allows the first end of the snap-fit ​​shaft 1 to pass through and engage with the mounting member 2. The limiting hole 22 communicates with the through hole 13. The second end of the mounting member 2 also has a compressible sealing skirt 23. The sealing skirt 23 is used to cover the periphery of the connection hole of the door sheet metal 20. The second end of the snap-fit ​​shaft 1 is engaged with the door sheet metal 20.

[0041] Since the snap-fit ​​shaft 1 snaps into the mounting part 2 and the door sheet metal 20 respectively, the installation efficiency of the door lock closing actuator 30 and the door sheet metal 20 can be improved. The sealing skirt 23 covers the periphery of the connection hole of the door sheet metal 20 and can play a sealing role. In addition, the limiting hole 22 and the through hole 13 cooperate with each other to allow the noise of the door lock closing actuator 30 to be transmitted from the limiting hole 22 to the through hole 13 and attenuated. The sealing skirt 23 can also achieve noise reduction, reducing the noise of the door lock closing actuator 30 transmitted to the vehicle interior through the snap-fit ​​hole of the door sheet metal 20.

[0042] Furthermore, the height of the limiting hole 22 is greater than the height of the part of the snap-fit ​​shaft 1 that extends into the limiting hole 22. This arrangement allows the mounting part 2 to be compressed after connection to form several small cavities. These cavities can absorb the noise generated by the door lock closing actuator 30, thereby reducing noise and minimizing the transmission of noise from the door lock closing actuator 30 to the vehicle interior through the snap-fit ​​hole of the door sheet metal 20.

[0043] In some embodiments, the wall of the limiting hole 22 has protrusions, wherein there can be multiple protrusions, and the shape of the protrusions can be circular, rectangular, or triangular. The protrusions can absorb noise to a certain extent, thereby achieving the purpose of noise reduction. The protrusions can be hollow structures, which can further improve the noise reduction effect.

[0044] In some other embodiments, the walls of the limiting hole 22 are attached with a microporous layer, and the pore size of the microporous layer is 1μm-10μm. In this embodiment, the pore size of the micropores in the microporous layer is 1μm, 2μm, 3μm, 4μm, 5μm, 6μm, 7μm, 8μm, 9μm, or 10μm, and is not specifically limited in this embodiment; the porosity is 1%-50%, and in this embodiment, the porosity is 1%, 10%, 20%, 30%, 40%, or 50%, and is not specifically limited in this embodiment. The micropores have... The number of micropores can be set according to the actual situation. The distribution of micropores can be honeycomb or other distribution methods. The thickness of the micropore layer is 1mm-5mm. For example, the thickness of the micropore layer is 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm or 5mm. In this embodiment, no specific limitation is made. Reducing the thickness of the micropore layer can effectively reduce the production cost of the earplug. When a thicker micropore layer is required, multiple micropore layers can be stacked to increase the overall thickness.

[0045] For example, the microporous layer can be foam.

[0046] Of course, in other embodiments, the wall of the limiting hole 22 is coated with a noise reduction layer formed of a noise reduction material.

[0047] Specifically, the first end of the snap-fit ​​shaft 1 is provided with a first snap-fit ​​member 11, and the second end of the snap-fit ​​shaft 1 is provided with a second snap-fit ​​member 12. In this way, the first snap-fit ​​member 11 snaps into the mounting member 2, and the second snap-fit ​​member 12 snaps into the door sheet metal 20. The snap-fit ​​shaft 1 and the mounting member 2 cooperate with each other to quickly install the door sheet metal 20 and the door lock suction actuator 30.

[0048] Furthermore, the first snap-fit ​​member 11 has a first guide slope. From the first snap-fit ​​member 11 toward the second snap-fit ​​member 12, the first guide slope gradually moves away from the central axis of the mounting member 2. The setting of the first guide slope can help the first snap-fit ​​member 11 to smoothly enter the limiting hole 22.

[0049] The second snap-fit ​​component 12 has a second guide slope. From the first snap-fit ​​component 11 towards the second snap-fit ​​component 12, the first guide slope gradually approaches the central axis of the mounting component 2. The second guide slope helps the second snap-fit ​​component 12 to pass smoothly through the door sheet metal 20.

[0050] Specifically, the limiting hole 22 includes a first hole in the shape of an "1" and a second hole arranged circumferentially along the first hole. The second hole is an annular hole, which communicates with the first hole and is located on the outer periphery of the first hole. The second hole can limit the first snap-fit ​​member 11 and prevent the first snap-fit ​​member 11 from disengaging from the limiting hole 22. This arrangement can improve the firmness between the mounting member 2 and the snap-fit ​​shaft 1.

[0051] To facilitate the quick connection of the mounting component 2 and the snap-fit ​​shaft 1 to the door sheet metal 20, the mounting component 2 and the snap-fit ​​shaft 1 are both integral structures. This design saves manufacturing and assembly time for the mounting component 2 and the snap-fit ​​shaft 1, further improving the assembly efficiency of the door components.

[0052] In some embodiments, the mounting member 2 is a rubber structural component. This allows the mounting member 2 to easily engage with the door lock actuator 30, and also provides cushioning for the door lock actuator 30, reducing vibration during operation. The locking shaft 1 is made of a rigid material such as plastic, meaning it can be a plastic component. This improves the engagement strength between the second locking member 12 and the door sheet metal 20, reducing the risk of the door lock actuator 30 detaching from the door sheet metal 20. Since the mounting member 2 is an integral structure, the sealing skirt 23 is also made of a flexible material such as rubber. It can deform and press against the door sheet metal 20, thereby sealing the locking holes of the door sheet metal 20. Simultaneously, the sealing skirt 23 also dampens the door lock actuator 30, reducing vibration transmitted from the door lock actuator 30 to the door sheet metal 20.

[0053] As shown in Figures 3 and 6, the door lock actuator 30 includes a housing 32, a pull cable 33, and an actuator body 31. The pull cable 33 is connected to the actuator body 31 and passes through the housing 32. A pull cable seal 4 is provided between the pull cable 33 and the housing 32. This seal prevents rainwater or car wash water from entering the housing 32 of the door lock actuator 30, thus achieving a sealing effect. Specifically, a pull cable fixing member 34 is sleeved around the pull cable 33, and the pull cable seal 4 is a rubber sealing ring. The rubber sealing ring is sleeved around the pull cable fixing member 34, which passes through the pull cable 33 through the housing 32. The pull cable fixing member 34 and the housing 32 work together to compress the pull cable seal 4, thereby achieving a waterproof seal between the pull cable 33 and the housing 32.

[0054] The slot 21 is configured as a C-shaped slot distributed circumferentially along the mounting part 2. The periphery of the housing 32 is provided with claws 324, which engage with the slot 21 of the mounting structure 10. The claws 324 are C-shaped and are configured to interfere with the C-shaped slots of the mounting part 2. The slot 21 is configured as a C-shaped slot for ease of assembly; the door lock actuator 30 can be inserted into the slot 21 from the first end of the mounting part 2 for assembly, instead of being assembled by sliding it from top to bottom. This reduces the assembly difficulty of the door lock actuator 30 and improves the assembly experience. Furthermore, the cooperation between the slot 21 and the latch prevents the latching part from rotating relative to the door lock actuator 30, thus limiting the position of the mounting part 2.

[0055] The claw 324 extends a limiting protrusion 325 on the side away from the door sheet metal 20, while the side wall of the mounting part 2 is provided with an arc-shaped limiting block 24. The arc-shaped limiting block 24 is located on the side of the claw 324 away from the door sheet metal 20. When the limiting protrusion 325 is located at the end of the arc-shaped limiting block 24, the two limit each other and form a ring, thereby preventing the mounting part 2 from rotating relative to the door lock suction actuator 30.

[0056] In some embodiments, the outer casing 32 includes a first casing 321 and a second casing 322, which are fastened together by fixing screws 5. The slot 21 is provided at the second casing 322, that is, the claw 324 is provided at the second casing 322. The second casing 322 is located near the door sheet metal 20.

[0057] In some embodiments, a reinforcing rib 323 is provided on the outer side of the housing 32. Specifically, the housing 32 is topologically optimized to obtain the reinforcing rib 323. The arrangement of the reinforcing rib 323 can change the contact stiffness of the vibration source, reduce the vibration of the housing 32, and thus reduce the noise of the door lock engagement actuator 30.

[0058] The present invention also provides a vehicle that includes the door assembly provided in the embodiments of the present invention.

[0059] Since it includes the aforementioned door assembly, the door assembly of this utility model embodiment has all the advantages and beneficial effects of the above embodiments, which will not be repeated here.

[0060] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A door assembly, characterized in that, The device includes a door sheet metal (20), a mounting structure (10), and a door lock actuator (30). The mounting structure (10) is respectively engaged with the door sheet metal (20) and the door lock actuator (30). The mounting structure (10) includes: a engaging shaft (1) with a through hole (13) along the axial direction; and a mounting component (2) with a slot (21) at its first end for engaging with the door lock actuator (30). The second end of the mounting member (2) has a limiting hole (22) that allows the first end of the snap-fit ​​shaft (1) to pass through and snap into the mounting member (2). The limiting hole (22) communicates with the through hole (13). The second end of the mounting member (2) has a compressible sealing skirt (23) that covers the periphery of the connection hole of the door sheet metal (20). The second end of the snap-fit ​​shaft (1) snaps into the door sheet metal (20).

2. The door assembly according to claim 1, characterized in that, The height of the limiting hole (22) is greater than the height of the portion of the snap-fit ​​shaft (1) that extends into the limiting hole (22).

3. The door assembly according to claim 1, characterized in that, The wall of the limiting hole (22) has protrusions; or, the wall of the limiting hole (22) is attached with a microporous layer.

4. The door assembly according to claim 1, characterized in that, The first end of the snap-fit ​​shaft (1) is provided with a first snap-fit ​​member (11), and the second end of the snap-fit ​​shaft (1) is provided with a second snap-fit ​​member (12).

5. The door assembly according to claim 4, characterized in that, The first snap-fit ​​member (11) has a first guide slope, which gradually moves away from the central axis of the mounting member (2) from the first snap-fit ​​member (11) toward the second snap-fit ​​member (12); the second snap-fit ​​member (12) has a second guide slope, which gradually moves closer to the central axis of the mounting member (2) from the first snap-fit ​​member (11) toward the second snap-fit ​​member (12).

6. The door assembly according to claim 1, characterized in that, The mounting component (2) is an integral structure, and the snap-fit ​​shaft (1) is an integral structure; and / or, the mounting component (2) is a rubber structural component, and the snap-fit ​​shaft (1) is a plastic component.

7. The door assembly according to claim 1, characterized in that, The door lock engaging actuator (30) includes an actuator body (31), a housing (32), and a pull cable (33). The actuator body (31) is located inside the housing (32). The pull cable (33) passes through the housing (32) and is connected to the actuator body (31). A pull cable seal (4) is provided between the pull cable (33) and the housing (32).

8. The door assembly according to claim 7, characterized in that, The outer side wall of the outer shell (32) is provided with reinforcing ribs (323).

9. The door assembly according to claim 7, characterized in that, The slot (21) is configured as a C-shaped slot distributed circumferentially along the mounting member (2), and the periphery of the outer shell (32) is provided with claws (324), which are engaged with the slot (21) of the mounting structure (10).

10. A vehicle, characterized in that, Includes the door assembly as described in any one of claims 1-9.