End sealing structure for car door metal plate and internal water cutting

Abstract

The invention belongs to the technical field of automobile doors, and relates to an automobile door metal plate and inner water cutting end sealing structure. Clamping grooves are formed in the front face and the back face of the end of the inner water cutting body (1) respectively, one end of the inner water cutting end sealing piece (2) is clamped in the clamping groove in the front face of the end of the inner water cutting body (1), and the other end of the inner water cutting end sealing piece (2) is clamped in the clamping groove in the back face of the end of the inner water cutting body (1). And the inner water cutting end part sealing piece (2) is positioned at the joint part of the automobile door metal plate body assembly (3) and the inner water cutting end part. According to the automobile door metal plate and inner water cutting end sealing structure, under the condition that the internal and external design of the body is not changed, the noise transmission problem of most paths can be solved by adding the simple end foam; the technology can be used for mass-produced vehicles or non-mass-produced vehicles, and the application range is wide; the implementation period is short and the cost is low.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile doors, and more specifically, relates to a sealing structure of a door sheet metal and an inner water-cut end. Background Art

[0002] With the continuous innovation of automobile technology, the ride comfort performance of vehicles has received more and more attention, which has greatly caused major automobile companies to pay attention to and invest in the ride comfort performance of vehicles. Reasonable design of the end of the inner water-cut strip of the car door can help improve the sealing of the car door and improve the comfort of the car. At present, the inner water-cut is installed on the inner door panel and the window frame reinforcement plate, or installed on the upper end of the door interior panel. It is a sealing strip made by processes such as extrusion and injection molding. It is generally composed of flocking, soft layer, and skeleton. However, some inner door sheet metals are welded together by different sheet metals. Due to the influence of the molding process, many holes will be left at the overlap of the sheet metal. However, the existing general inner water-cut design cannot effectively block the holes, resulting in sealing difficulties. It is very easy to cause wind noise problems when the vehicle is running at high speed. The inner water-cut with end rubber sleeve design is too expensive.

[0003] There is a technology in the prior art named "A vehicle door assembly with external water cut and accessories" and with a publication (announcement) number of "CN116476617A". This technology belongs to the field of automobile technology, and specifically relates to a vehicle door assembly with external water cut and accessories, including a vehicle door sheet metal, a vehicle door external water cut and accessories. A number of sheet metal holes are opened on the vehicle door sheet metal. The vehicle door external water cut includes an external water cut frame and an external water cut sealing lip. A number of protruding metal sheets are evenly arranged on the side of the external water cut frame away from the external water cut sealing lip. When the vehicle door external water cut is installed on the vehicle door sheet metal, the external water cut frame is attached to the inner wall of the vehicle door sheet metal, the protruding metal sheets pass through the sheet metal holes and are bent at the outer wall of the vehicle door sheet metal. The accessories are installed at the top of the vehicle door sheet metal, and the top of the vehicle door sheet metal is higher than the contact surface between the vehicle door external water cut and the vehicle door sheet metal in the height direction. The purpose is: through the mutual cooperation between the protruding metal sheet of the door outer water cut and the sheet metal holes on the door sheet metal, the door outer water cut can make room for the top of the door sheet metal for the installation of accessories, thereby facilitating the expansion of the functional diversity of the door and avoiding the problem of single function of components and layout space.

[0004] However, this technology does not involve the technical problems and technical solutions of the present application. Summary of the invention

[0005] The technical problem to be solved by the present invention is: in view of the deficiencies in the prior art, a door sheet metal and inner water cut end sealing structure is provided which can effectively solve the problem of poor sealing effect of the inner water cut structure.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0007] The present invention is a door sheet metal and inner water-cut end sealing structure, comprising an inner water-cut body, an inner water-cut end sealing component, and a door sheet metal body assembly. The front and back sides of the inner water-cut body end are respectively provided with card grooves. One end of the inner water-cut end sealing component is card-mounted in the card groove on the front side of the inner water-cut body end, and the other end of the inner water-cut end sealing component is card-mounted in the card groove on the back side of the inner water-cut body end. The inner water-cut end sealing component is located at the junction of the door sheet metal body assembly and the inner water-cut end.

[0008] The inner water-cut body is clamped on the stopper on the door sheet metal body.

[0009] The inner water-cut end sealing piece is made of foam material.

[0010] One end of the inner water-cut end seal is simultaneously pasted in the card groove on the front end of the inner water-cut body 1 through the back adhesive, and the other end of the inner water-cut end seal is simultaneously pasted in the card groove on the back end of the inner water-cut body through the back adhesive.

[0011] An inner water-cut end sealing component is arranged at one end of the inner water-cut body, and another inner water-cut end sealing component is arranged at the other end of the inner water-cut body.

[0012] The joint position between the door sheet metal body assembly and the inner water-cut end portion includes a front joint position and a rear joint position.

[0013] The inner water-cut end sealing member at one end of the inner water-cut body is located at the front joint portion, and the inner water-cut end sealing member at the other end of the inner water-cut body is located at the rear joint portion.

[0014] The slot is configured to have a T-shaped cross section, or a convex strip is disposed near each side of the slot, and two symmetrically arranged convex strips form a convex strip group.

[0015] The inner water-cut end sealing member is in an N-shaped structure.

[0016] The technical solution of the present invention is adopted, and the working principle and beneficial effects are as follows:

[0017] The door sheet metal and inner water-cut end sealing structure of the present invention are respectively made into an inner water-cut body, an inner water-cut end sealing part, and an inner water-cut end sealing part connected to the inner water-cut body, and the inner water-cut body is installed to the corresponding position of the door sheet metal body assembly. When the inner water-cut end sealing part is connected to the inner water-cut body, a clamping groove is respectively provided on the front and back sides of the inner water-cut body end, so that one end of the inner water-cut end sealing part is clamped in the clamping groove on the front side of the inner water-cut body end to achieve the inner water-cut end sealing part position fixing, and the other end of the inner water-cut end sealing part is bent and then clamped in the clamping groove on the back side of the inner water-cut body end to achieve the inner water-cut end sealing part position fixing, and the inner water-cut end sealing part is located at the junction of the door sheet metal body assembly and the inner water-cut end. When the inner water-cut body is installed to the door sheet metal body assembly, the inner water-cut body is clamped on the upper stop of the door sheet metal body assembly, and the inner water-cut body is fixedly installed. The protruding part of the outer end of the inner water-cut end seal is assembled to the joint between the door sheet metal and the rear end of the inner water-cut. The hole at the joint between the door sheet metal body assembly and the inner water-cut body is sealed by the outer protruding part of the inner water-cut end seal to achieve the sealing of the hole, which has the effect of absorbing, isolating and reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents and symbols in the drawings of this specification:

[0019] Figure 1 It is a structural schematic diagram of the door sheet metal and inner water-cut end sealing structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the door sheet metal and the inner water cut end sealing structure of the present invention when they are arranged in the door sheet metal body assembly;

[0021] Figure 3 It is a partial enlarged structural schematic diagram of the vehicle door sheet metal and the inner water cut end sealing structure of the present invention when it is arranged in the vehicle door sheet metal body assembly;

[0022] The markings in the attached drawings are: 1. inner water-cut body; 2. inner water-cut end seal; 3. door sheet metal body assembly; 4. front joint position; 5. rear joint position; 6. slot; 7. upper stop. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the specific implementation of the present invention, such as the shape, structure, mutual position and connection relationship between the various components involved, the function and working principle of each part, etc., through the description of the embodiments with reference to the accompanying drawings:

[0024] As attached Figure 1 -Attached Figure 3As shown, the present invention is a door sheet metal and inner water-cut end sealing structure, including an inner water-cut body 1, an inner water-cut end seal 2, and a door sheet metal body assembly 3. The inner water-cut body 1 has slots on the front and back of the end, one end of the inner water-cut end seal 3 is clamped in the slot on the front of the end of the inner water-cut body 1, and the other end of the inner water-cut end seal 2 is clamped in the slot on the back of the end of the inner water-cut body 1. The inner water-cut end seal 2 is located at the junction of the door sheet metal body assembly 3 and the inner water-cut end. The above structure proposes an improved technical solution to address the deficiencies in the prior art. When setting up the structure, the inner water-cut body 1, the inner water-cut end seal 2, and the inner water-cut end seal 2 connected to the inner water-cut body 1 are respectively made, and the inner water-cut body 1 is installed to the corresponding position of the door sheet metal body assembly 3. When the inner water-cut end seal 2 is connected to the inner water-cut body 1, the front and back sides of the inner water-cut end of the inner water-cut body 1 are respectively provided with card grooves 6, so that one end of the inner water-cut end seal 2 is carded in the card groove 6 on the front side of the end of the inner water-cut body 1 to fix the position of the inner water-cut end seal 2. The other end of the inner water-cut end seal 2 is bent and then carded in the card groove 6 on the back side of the end of the inner water-cut body 1 to fix the position of the inner water-cut end seal 2. The inner water-cut end seal 2 is located at the junction of the door sheet metal body assembly 3 and the inner water-cut end. When the inner water-cut body 1 is installed to the door sheet metal body assembly 3, the inner water-cut body 1 is clamped on the upper stop 7 of the door sheet metal body assembly 3, and the inner water-cut body 1 is fixedly installed. The protruding part of the outer end of the inner water-cut end seal 2 is assembled to the joint position of the door sheet metal and the inner water-cut rear end. The hole position at the joint position of the door sheet metal body assembly 3 and the inner water-cut body 1 is blocked by the outer protruding part of the inner water-cut end seal 2 to achieve the sealing of the hole, which has the effect of sound absorption, insulation and noise reduction. In summary, the door sheet metal and inner water-cut end sealing structure described in the present invention has the following innovations: First, without changing the internal and external design of the body, adding a simple end foam can solve most of the path noise transmission problems; second, the technology can be used for vehicles that have been mass-produced or not mass-produced, and has a wide range of applications; third, the implementation period is short and the cost is low.

[0025] The inner water-cut body 1 is clamped on the upper stop 7 of the door sheet metal body 3. In the above structure, the inner water-cut body 1 is clamped on the upper stop 7 to ensure that the inner water-cut body 1 is reliably installed. Then, the inner water-cut end seal 2 is fixed in position and can effectively seal the hole.

[0026] The inner water-cut end seal 2 is made of foam material. In the above structure, the inner water-cut end seal 2 is made of foam material, which is a flexible and deformable structure. When sealing the hole, it deforms by itself under force and reliably fits the hole, thereby effectively improving the sealing effect of the hole.

[0027] One end of the inner water-cut end seal 2 is simultaneously pasted in the card slot on the front side of the end of the inner water-cut body 1 by adhesive, and the other end of the inner water-cut end seal 2 is simultaneously pasted in the card slot on the back side of the end of the inner water-cut body 1 by adhesive. One inner water-cut end seal 2 is provided at one end of the inner water-cut body 1, and another inner water-cut end seal 2 is provided at the other end of the inner water-cut body 1. The above structure realizes that the inner water-cut end seal 2 is reliably connected to the inner water-cut body 1 and will not fall off easily. The inner water-cut end seal 2 is provided at each end of the inner water-cut body 1, and the inner water-cut end seals 2 at both ends are respectively used to seal the holes at the joint position.

[0028] The joint positions of the door sheet metal body assembly 3 and the inner water-cut end portion include a front joint position 4 and a rear joint position 5. The inner water-cut end seal 2 at one end of the inner water-cut body 1 is located at the front joint position 4, and the inner water-cut end seal 2 at the other end of the inner water-cut body 1 is located at the rear joint position 5. In the above structure, the holes at the front joint position and the rear joint position are respectively sealed by the corresponding inner water-cut end seals 2.

[0029] The slot is configured to have a T-shaped cross section, or a convex strip is disposed near each side of the slot, and two symmetrically arranged convex strips form a convex strip group. In the above two structures, the inner water-cut end seal 2 can be clamped and limited, and can be pressed against the water-cut end seal 2 located on the front or back of the end to fit reliably, and then fixed by gluing.

[0030] The inner water-cut end seal 2 is an N-shaped structure. In the above structure, the inner water-cut end seal 2 at each end is an integral structure, one end is connected to the front end of the inner water-cut body 1, and the other end is connected to the back end of the inner water-cut body 1, and the end protrudes outward to block the hole.

[0031] The door sheet metal and the inner water-cut end sealing structure described in the present invention are intended to solve the sealing difficulties caused by the holes left after the door sheet metal is welded, thereby generating wind noise problems when the vehicle is running at high speed. To this end, a sealing design for the inner water-cut end of an automobile is proposed, which has the following advantages: 1) It significantly improves the comfort problem of the whole vehicle caused by the design defects of the door sheet metal; 2) It proposes a new solution to the wind noise problem that cannot be avoided from the door sheet metal design of some models; 3) The application of this design can solve the noise problem caused by the path without changing the sheet metal assembly and the inner water-cut body design, saving internal design optimization time and sample embodiment time, and can solve the problem without spending more cost.

[0032] The door sheet metal and inner water-cut end sealing structure of the present invention, when the structure is set, the inner water-cut body 1, the inner water-cut end seal 2, the inner water-cut end seal 2 connected to the inner water-cut body 1 are respectively made, and the inner water-cut body 1 is installed to the corresponding position of the door sheet metal body assembly 3. When the inner water-cut end seal 2 is connected to the inner water-cut body 1, the front and back sides of the inner water-cut body 2 are respectively provided with a card groove 6, so that one end of the inner water-cut end seal 2 is carded in the card groove 6 on the front side of the inner water-cut body 1 end, so that the position of the inner water-cut end seal 2 is fixed, and the other end of the inner water-cut end seal 2 is bent and then carded in the card groove 6 on the back side of the inner water-cut body 1 end, so that the position of the inner water-cut end seal 2 is fixed, and the inner water-cut end seal 2 is located at the junction of the door sheet metal body assembly 3 and the inner water-cut end. When the inner water-cut body 1 is installed to the door sheet metal body assembly 3, the inner water-cut body 2 is clamped on the upper stop 7 of the door sheet metal body assembly 3, and the inner water-cut body 2 is fixedly installed. The protruding part of the outer end of the inner water-cut end seal 2 is assembled to the joint between the door sheet metal and the rear end of the inner water-cut. The hole at the joint between the door sheet metal body assembly 3 and the inner water-cut body 1 is blocked by the outer protruding part of the inner water-cut end seal 2 to achieve the sealing of the hole, which has the effect of absorbing, isolating and reducing noise.

[0033] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A sealing structure for a door sheet metal and an inner water cut end, characterized in that: The invention comprises an inner water-cut body (1), an inner water-cut end sealing component (2), and a vehicle door sheet metal body assembly (3); a clamping groove (6) is respectively arranged on the front and back sides of the end of the inner water-cut body (1); one end of the inner water-cut end sealing component (2) is clamped in the clamping groove (6) on the front side of the end of the inner water-cut body (1); the other end of the inner water-cut end sealing component (2) is clamped in the clamping groove (6) on the back side of the end of the inner water-cut body (1); and the inner water-cut end sealing component (2) is located at the joint between the vehicle door sheet metal body assembly (3) and the inner water-cut end.

2. The door sheet metal and inner water cut end sealing structure according to claim 1, characterized in that: The inner water-cut body (1) is clamped on the upper stop (7) of the door sheet metal body (3).

3. The door sheet metal and inner water cut end sealing structure according to claim 1 or 2, characterized in that: The inner water-cut end seal (2) is made of foam material.

4. The door sheet metal and inner water cut end sealing structure according to claim 1 or 2, characterized in that: One end of the inner water-cut end seal (2) is simultaneously adhered to the card slot (6) on the front side of the end of the inner water-cut body (1) by means of adhesive, and the other end of the inner water-cut end seal (2) is simultaneously adhered to the card slot (6) on the back side of the end of the inner water-cut body (1) by means of adhesive.

5. The door sheet metal and inner water cut end sealing structure according to claim 1 or 2, characterized in that: An inner water-cut end seal (2) is arranged at one end of the inner water-cut body (1), and another inner water-cut end seal (2) is arranged at the other end of the inner water-cut body (1).

6. The door sheet metal and inner water cut end sealing structure according to claim 1 or 2, characterized in that: The joint position between the door sheet metal body assembly (3) and the inner water-cut end portion includes a front joint position (4) and a rear joint position (5).

7. The door sheet metal and inner water cut end sealing structure according to claim 6, characterized in that: The inner water-cut end seal (2) at one end of the inner water-cut body (1) is located at the front joint position (4), and the inner water-cut end seal (2) at the other end of the inner water-cut body (1) is located at the rear joint position (5).

8. The door sheet metal and inner water cut end sealing structure according to claim 1 or 2, characterized in that: The card slot (6) is configured to have a T-shaped cross section.

9. The door sheet metal and inner water cut end sealing structure according to claim 8, characterized in that: Alternatively, each groove edge of the card slot (6) is provided with a convex strip near the edge, and two symmetrically arranged convex strips form a convex strip group.

10. The door sheet metal and inner water cut end sealing structure according to claim 1 or 2, characterized in that: The inner water-cut end seal (2) is in an N-shaped structure.

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