Car door sealing structure of B-pillar-free side-by-side door

Abstract

The invention belongs to the technical field of B-pillar-free automobiles, and relates to a B-pillar-free side-by-side door sealing structure. Comprising a front door primary seal (1), a rear door primary seal (2) and a secondary seal (3), the front door primary seal (1) comprises a front door mounting surface (4), a front door seal main body (5) and a front door sealing surface, the rear door primary seal (2) comprises a rear door mounting surface (7), a rear door seal main body (8) and a rear door sealing surface, and the secondary seal (3) comprises a secondary seal mounting surface (10), a secondary seal main body (11) and a secondary seal sealing surface. According to the B-column-free side-by-side door vehicle door sealing structure, the arrangement problem of a front vehicle door sealing structure and a rear vehicle door sealing structure under a B-column-free structure can be effectively solved, the water tightness and the air tightness of the B-column-free vehicle door structure are improved, and the occurrence probability of the water leakage problem of a corner connecting part is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of cars without B-pillars, and more specifically, relates to a door sealing structure for a pair of opposed-opening doors without a B-pillar. Background Art

[0002] With the rapid update and iteration of cars, consumers have higher requirements for the interior space of cars and the convenience of getting on and off the car. Cars with opposed-opening doors without a B-pillar have emerged as the times require. The opposed-opening doors without a B-pillar make it more convenient for consumers to get on and off the car. It gets rid of the obstruction of the B-pillar (side panel) when getting on and off the car in the traditional opposed-opening doors with a B-pillar (the B-pillar is concentrated on the side panel), and realizes more convenient getting on and off the car without a B-pillar (the "B-pillar" is concentrated on the rear door). However, the opposed-opening doors without a B-pillar pose higher requirements for the sealing and watertightness of the car. Due to the lack of a B-pillar in the existing opposed-opening doors without a B-pillar, the sealing system is severely challenged, and the watertightness and airtightness are poor. Problems such as water leakage during heavy rain and high-speed wind noise often occur.

[0003] There is a technology with the name of "a structure for disordered opposed-opening doors without a B-pillar in a car" and a publication number of "CN117549727A" in the prior art. This technology relates to a structure for disordered opposed-opening doors without a B-pillar in a car, including a body shell assembly, a front door assembly, and a rear door assembly; locking catches are arranged at the upper and lower ends of the body shell assembly and the rear end of the rear door, and lock bodies adapted to the corresponding locking catches are respectively arranged on the front door assembly and the rear door assembly. The front door assembly and the rear door assembly are independent of each other and are independently opened through their respective locking catches and lock bodies; a rear door B-pillar inner sealing strip is clamped and installed at the connecting stop between the inner panel of the rear door and the rear door B-pillar sealing plate, and a rear door B-pillar outer sealing strip is clamped and installed at the flanging of the outer panel of the rear door; the front door assembly is hinged to the body shell assembly through a front door A-pillar hinge assembly, and the rear door assembly is hinged to the body shell assembly through a rear door B-pillar upper rail hinge assembly, a rear door B-pillar lower rail hinge assembly, and a rear door rear end rail hinge assembly; the present invention can realize non-interference in the disordered opening of the front and rear doors without a B-pillar, and meet the requirement of the convenience of getting on and off the car for the front-row passengers.

[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: aiming at the deficiencies of the prior art, to provide a door sealing structure for a pair of opposed-opening doors without a B-pillar that can effectively solve the problem of the layout of the front and rear door sealing structures under the condition of no B-pillar structure, improve the watertightness and airtightness of the door structure without a B-pillar, improve the watertightness of the joint angle part, reduce the probability of water leakage at the joint angle part, and improve the overall performance of the vehicle.

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

[0007] The present invention relates to a door sealing structure for a B-pillarless pair of opening doors, which includes a primary seal for the front door, a primary seal for the rear door, and a secondary seal. The primary seal for the front door includes a front door mounting surface, a front door seal main body, and a front door seal surface. The primary seal for the rear door includes a rear door mounting surface, a rear door seal main body 8, and a rear door seal surface. The secondary seal includes a secondary seal mounting surface, a secondary seal main body, and a secondary seal surface. The front door seal main body includes an extruded section a of the front door frame seal strip, an extruded section b of the front door frame seal strip, a corner joint a of the front door frame strip, and a corner joint b of the front door frame strip. The front door seal surface includes the outer panel of the side wall, the outer panel of the rear door, a corner joint c of the rear door frame strip, and a corner joint d of the rear door frame strip.

[0008] The rear door seal main body includes an extruded section a of the rear door frame seal strip, an extruded section b of the rear door frame seal strip, an extruded section d of the rear door frame seal strip, a corner joint c of the rear door frame strip, a corner joint d of the rear door frame strip, and a corner joint e of the rear door frame strip. The rear door seal surface includes the outer panel of the side wall, the inner panel of the front door, a corner joint a of the front door frame strip, and a corner joint f of the front door frame strip.

[0009] The front door mounting surface of the primary seal for the front door is the inner panel of the front door, the rear door mounting surface of the primary seal for the rear door is the inner panel of the rear door, and the secondary seal mounting surface of the secondary seal is the stop of the inner and outer panels of the side wall assembly.

[0010] The secondary seal main body is a door opening seal strip.

[0011] The secondary seal surface is the inner panel of the front door, the inner trim panel of the front door, the inner trim panel of the rear door, a corner joint c of the rear door frame strip, and a corner joint d of the rear door frame strip.

[0012] The side wall assembly is a whole-circle structure, and the door opening seal strip is a whole-circle structure.

[0013] The extruded section a of the front door frame seal strip and the extruded section b of the front door frame seal strip of the front door seal main body are respectively clamped on the inner panel of the front door.

[0014] The extruded section a of the rear door frame seal strip and the extruded section b of the rear door frame seal strip of the rear door seal main body are respectively clamped on the inner panel of the rear door.

[0015] The secondary seal main body is clamped on the stop of the inner and outer panels of the side wall assembly.

[0016] The corner joint a of the front door frame strip, the corner joint b of the front door frame strip, the corner joint a of the front door frame strip, and the corner joint b of the front door frame strip of the front door seal main body are fixed on the front door mounting surface through tape and buckles. The extruded section a of the rear door frame seal strip, the extruded section b of the rear door frame seal strip, the extruded section d of the rear door frame seal strip, the corner joint c of the rear door frame strip, the corner joint d of the rear door frame strip, and the corner joint e of the rear door frame strip of the rear door seal main body are fixed on the rear door mounting surface through tape and buckles. The door opening seal strip of the secondary seal main body is fixedly connected to the secondary seal surface through tape and buckles.

[0017] The working principle and beneficial effects of the technical solution of the present invention are described as follows:

[0018] For the door sealing structure of the B-pillarless opposed-opening doors of the present invention, the component layout, sealing principle, and key points of watertightness are as follows: The doorframe sealing strip forms the first seal, and the door opening sealing strip forms the second seal. The first seal is further divided into the front door first seal and the rear door first seal. Each seal mainly includes an installation surface, a sealing strip, and a sealing surface. Specifically, the principle and layout of the front door seal are as follows: The front door seal main body (front doorframe strip, front door sealing strip) includes the front doorframe sealing strip extrusion section a, the front doorframe sealing strip extrusion section b, the front doorframe strip joint a, and the front doorframe strip joint b, which are respectively fixed and installed on the corresponding front door installation surfaces through buckles and tapes to achieve the fixed connection of the front door seal main body. When the front door is closed, the front door sealing strip contacts the vehicle body side assembly, and the front door seal main body cooperates with the front door sealing surface for sealing to form a complete circular closed-loop first seal, realizing the front door seal. The principle and layout of the rear door seal are as follows: The rear door seal main body (rear doorframe strip, rear door sealing strip) includes the rear doorframe sealing strip extrusion section a, the rear doorframe sealing strip extrusion section b, the rear doorframe strip joint c, the rear doorframe strip joint d, and the front doorframe strip joint e, which are respectively fixed and installed on the rear door installation surfaces through buckles, tapes, and installation to achieve the fixed connection of the rear door seal main body. When the rear door is closed, the rear door sealing strip contacts the vehicle body side assembly, and the rear door seal main body cooperates with the rear door sealing surface for sealing to form a complete circular closed-loop seal, realizing the rear door seal; The principle and layout of the second seal: Since the side assembly has no B-pillar structure and the side assembly is a complete circular structure without distinguishing between the front and rear doors, the second seal is the door opening sealing strip, and the second seal is an annular structure installed on the side stop of the side assembly to form a complete circular seal main body. When the front and rear doors are closed, the front and rear doors cooperate with the second sealing surface to form the second seal. To effectively improve the watertight performance of the joint part, the joint part is reliably fixed and connected to the corresponding part with a rubber strip such as 3M glue to ensure the connection reliability and watertightness of the joint part. Brief Description of the Drawings

[0019] The following briefly describes the content expressed by each drawing in this specification and the marks in the drawings:

[0020] Figure 1 It is a schematic structural diagram of the seal main body of the door sealing structure of the B-pillarless opposed-opening doors of the present invention;

[0021] Figure 2 It is a schematic structural diagram of the inner panel of the front door of the door sealing structure of the B-pillarless opposed-opening doors of the present invention;

[0022] Figure 3 It is a schematic structural diagram of the inner panel of the rear door of the door sealing structure of the B-pillarless opposed-opening doors of the present invention;

[0023] Figure 4 Schematic diagram of the layout structure of the front door sealing main body of the door sealing structure of the B-pillarless opposed doors according to the present invention;

[0024] Figure 5 Schematic diagram of the structure of the rear door sealing main body of the door sealing structure of the B-pillarless opposed doors according to the present invention;

[0025] Figure 6 Schematic diagram of the structure of the secondary sealing main body of the door sealing structure of the B-pillarless opposed doors according to the present invention;

[0026] The reference numerals in the drawings are respectively: 1, primary sealing of the front door; 2, primary sealing of the rear door; 3, secondary sealing; 4, front door mounting surface; 5, front door sealing main body; 7, rear door mounting surface; 8, rear door sealing main body; 10, secondary sealing mounting surface; 11, secondary sealing main body; 13, extrusion section a of the front door frame sealing strip; 14, extrusion section b of the front door frame sealing strip; 15, joint angle a of the front door frame strip; 16, joint angle b of the front door frame strip; 19, joint angle c of the rear door frame strip; 20, joint angle d of the rear door frame strip; 21, extrusion section a of the rear door frame sealing strip; 22, extrusion section a of the rear door frame sealing strip; 23, extrusion section d of the rear door frame sealing strip; 24, side wall assembly; 25, joint angle e of the rear door frame strip; 26, front door inner panel; 27, joint angle f of the front door frame strip; 28, rear door inner panel; 29, stop edge between the inner and outer panels of the side wall assembly; 31, front door outer panel; 32, rear door outer panel. Detailed implementation manners

[0027] The following further details the specific implementation manners of the present invention, such as the shapes, structures of the various components involved, the mutual positions and connection relationships between the various parts, the functions and working principles of the various parts, etc., with reference to the drawings and through the description of the embodiments:

[0028] As shown in the attached Figure 1 - attached Figure 6As shown in the figure, the present invention is a door sealing structure for a B-pillarless pair of opening doors, including a first seal 1 for the front door, a first seal 2 for the back door, and a second seal 3. The first seal 1 for the front door includes a front door mounting surface 4, a front door seal body 5, and a front door sealing surface 6. The first seal 2 for the back door includes a back door mounting surface 7, a back door seal body 8, and a back door sealing surface. The second seal 3 includes a second seal mounting surface 10, a second seal body 11, and a second seal sealing surface. The front door seal body 5 includes a front door frame seal strip extrusion section a13, a front door frame seal strip extrusion section b14, a front door frame strip joint a15, and a front door frame strip joint b16. The front door sealing surface includes an outer side panel, a rear door outer panel, a rear door frame strip joint c19, and a rear door frame strip joint d20. The back door seal body 8 includes a back door frame seal strip extrusion section a21, a back door frame seal strip extrusion section b22, a back door frame seal strip extrusion section d23, a back door frame strip joint c19, a back door frame strip joint d20, and a back door frame strip joint e25. The back door sealing surface includes an outer side panel, a front door inner panel 26, a front door frame strip joint a15, and a front door frame strip joint f27. The second seal body 11 is a door opening seal strip 30. The second seal sealing surface is the front door inner panel 26, the front door inner trim panel 43, the rear door inner trim panel 44, the rear door frame strip joint c19, and the rear door frame strip joint d20. For the deficiencies in the prior art, the above structure proposes an improved technical solution. When setting up the structure, the component layout, sealing principle, and waterproof key points are as follows: Among them, the door frame seal strip forms the first seal, and the door opening seal strip forms the second seal. The first seal is further divided into the first seal 1 for the front door and the first seal 2 for the back door. Each seal mainly includes a mounting surface, a seal strip (seal body), and a sealing surface. Specifically, the principle and layout of the front door seal are as follows: The front door seal body 5 (front door frame strip, front door seal strip) includes a front door frame seal strip extrusion section a13, a front door frame seal strip extrusion section b14, a front door frame strip joint a15, and a front door frame strip joint b16, which are respectively fixed and installed on the corresponding front door mounting surfaces through buckles and tapes to achieve the fixed connection of the front door seal body 5. When the front door is closed, the front door seal strip contacts the vehicle side assembly, and the front door seal body 5 cooperates with the front door sealing surface for sealing, forming a complete circular closed-loop first seal to achieve the front door seal.The principle and arrangement of the rear door seal are as follows: The rear door seal main body 8 (rear door frame strip, rear door seal strip) includes the rear door frame seal strip extrusion section a21, the rear door frame seal strip extrusion section b22, the rear door frame strip joint c23, the rear door frame strip joint d24, and the front door frame strip joint e25. They are respectively fixed and connected to the rear door installation surface through buckles, tapes, and installations, realizing the fixed connection of the rear door seal main body 5. When the rear door is closed, the rear door seal strip contacts the vehicle side wall assembly, and the rear door seal main body 8 cooperates with the rear door seal surface for sealing, forming a complete circular closed-loop seal to achieve rear door sealing. The principle and arrangement of the second seal: Since the side wall assembly has no B-pillar structure and is a complete circular structure without distinguishing between the front and rear doors, the second seal 3 is a door opening seal strip, and the second seal 3 is a circular structure installed on the side wall stop of the side wall assembly to form a complete circular seal main body. When the front and rear doors are closed, the front and rear doors cooperate with the second seal surface to form the second seal. To effectively improve the water-tight performance of the joint part, the joint part is reliably fixed and connected to the corresponding part with a rubber strip such as 3M glue to ensure the connection reliability and water-tightness of the joint part. The door seal structure of the B-pillarless double-leaf door of the present invention can effectively solve the problem of the layout of the front and rear door seal structures under the B-pillarless structure, improve the water-tightness and air-tightness of the B-pillarless door structure, reduce the probability of water leakage at the joint part, and improve the overall performance of the vehicle.

[0029] The front door installation surface 4 of the front door first seal 1 is the front door inner panel 26, the rear door installation surface 7 of the rear door first seal 2 is the rear door inner panel 28, and the second seal installation surface 10 of the second seal 3 is the stop of the inner and outer panels of the side wall assembly 24. In the above structure, a circular groove is provided on the front door installation surface 4 for reliably clamping and connecting the front door seal main body 5, a circular groove is provided on the rear door installation surface 6 for reliably clamping and connecting the rear door seal main body 8, and a circular groove is also provided on the second seal installation surface 10 for reliably clamping the second seal main body, and the seal strip is reliably connected.

[0030] The side wall assembly 24 is a complete circular structure, and the door opening seal strip 30 is a complete circular structure. In the above structure, the door opening seal strip 30 as the second seal is installed on the vehicle side wall assembly.

[0031] The front door frame seal strip extrusion section a13 and the front door frame seal strip extrusion section b14 of the front door seal main body 5 are respectively clamped on the front door inner panel 26. In the above structure, the reliable connection of the front door seal main body 5 is realized, ensuring that the front door can be opened and closed frequently without falling off easily.

[0032] The rear door frame seal strip extrusion section a21 and the rear door frame seal strip extrusion section b22 of the rear door seal main body 8 are respectively clamped on the rear door inner panel 28. In the above structure, the reliable connection of the rear door seal main body 8 is realized, ensuring that the rear door can be opened and closed frequently without falling off easily.

[0033] The second-stage sealing main body 11 is clamped on the inner and outer panel flanges of the side wall assembly 24. With the above structure, reliable connection of the second-stage sealing main body 11 is achieved, ensuring that the second-stage sealing main body 11 will not easily fall off during frequent opening and closing of the front door and the rear door, and guaranteeing the reliability of the installation of the vehicle sealing main body.

[0034] The front door frame strip joints a15 and b16, front door frame strip joint a15, and front door frame strip joint b16 of the front door sealing main body 5 are fixed on the front door mounting surface 4 by tapes and buckles. The rear door frame sealing strip extrusion sections a21, b22, d23, rear door frame strip joints c19, d20, and e25 of the rear door sealing main body 8 are fixed on the rear door mounting surface 7 by tapes and buckles. The door opening sealing strip 30 of the second-stage sealing main body 11 is fixedly connected to the second-stage sealing surface by tapes and buckles. With the above structure, the use of tapes and buckles guarantees the reliability of the installation of the front door sealing main body, the rear door sealing main body, and the second-stage sealing main body.

[0035] For the door sealing structure of the B-pillarless opposed doors according to the present invention, the component layout, sealing principle, and key points of watertightness are as follows: The doorframe sealing strip forms the first seal, and the door opening sealing strip forms the second seal. The first seal is further divided into the front door first seal 1 and the rear door first seal 2. Each seal mainly includes an installation surface, a sealing strip (sealing body), and a sealing surface. Specifically, the principle and layout of the front door seal are as follows: The front door sealing body 5 (front doorframe strip, front door sealing strip) includes the front doorframe sealing strip extrusion section a13, the front doorframe sealing strip extrusion section b14, the front doorframe strip joint a15, and the front doorframe strip joint b16, which are respectively fixed and installed on the corresponding front door installation surfaces through buckles and tapes to achieve the fixed connection of the front door sealing body 5. When the front door is closed, the front door sealing strip contacts the vehicle body side assembly, and the front door sealing body 5 cooperates with the front door sealing surface for sealing, forming a complete circular closed-loop first seal to achieve the front door seal. The principle and layout of the rear door seal are as follows: The rear door sealing body 8 (rear doorframe strip, rear door sealing strip) includes the rear doorframe sealing strip extrusion section a21, the rear doorframe sealing strip extrusion section b22, the rear doorframe strip joint c23, the rear doorframe strip joint d24, and the front doorframe strip joint e25, which are respectively fixed and installed on the rear door installation surfaces through buckles, tapes, and to achieve the fixed connection of the rear door sealing body 5. When the rear door is closed, the rear door sealing strip contacts the vehicle body side assembly, and the rear door sealing body 8 cooperates with the rear door sealing surface for sealing, forming a complete circular closed-loop seal to achieve the rear door seal; The principle and layout of the second seal: Since the body side assembly has no B-pillar structure and the body side assembly is a complete circular structure without distinguishing between the front and rear doors, the second seal 3 is a door opening sealing strip. The second seal 3 is a circular structure and is installed on the body side stop of the body side assembly to form a complete circular sealing body. When the front and rear doors are closed, the front and rear doors cooperate with the second sealing surface to form the second seal. To effectively improve the watertight performance of the joint part, the joint part is reliably fixed and connected to the corresponding part with a rubber strip such as 3M glue to ensure the connection reliability and watertightness of the joint part.

[0036] The present invention has been described exemplarily in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above methods. As long as various improvements are made by adopting 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 vehicle door without a B-pillar, characterized in that: The invention comprises a front door first seal (1), a rear door first seal (2) and a second seal (3); the front door first seal (1) comprises a front door installation surface (4), a front door seal body (5) and a front door sealing surface; the rear door first seal (2) comprises a rear door installation surface (7), a rear door seal body (8) and a rear door sealing surface; the second seal (3) comprises a second seal installation surface (10), a second seal body (11) and a second seal sealing surface; the front door seal body (5) comprises a front door frame sealing strip extrusion section a (13), a front door frame sealing strip extrusion section b (14), a front door frame strip connection angle a (15), and a front door frame strip connection angle b (16); and the front door sealing surface comprises a side panel outer panel, a rear door outer panel, a rear door frame strip connection angle c (19), and a rear door frame strip connection angle d (20).

2. The sealing structure for a vehicle door without a B-pillar according to claim 1, characterized in that: The rear door sealing body (8) comprises a rear door frame sealing strip extrusion section a (21), a rear door frame sealing strip extrusion section b (22), a rear door frame sealing strip extrusion section d (23), a rear door frame strip corner c (19), a rear door frame strip corner d (20), and a rear door frame strip corner e (25); the rear door sealing surface (9) comprises a side outer panel, a front door inner panel (26), a front door frame strip corner a (15), and a front door frame strip corner f (27).

3. The sealing structure for a vehicle door without a B-pillar according to claim 1 or 2, characterized in that: The front door installation surface (4) of the front door first seal (1) is the front door inner panel (26), the rear door installation surface (7) of the rear door first seal (2) is the rear door inner panel (28), and the second seal installation surface (10) of the second seal (3) is the inner and outer panel stop of the side panel assembly (24).

4. The sealing structure for a vehicle door without a B-pillar according to claim 1 or 2, characterized in that: The second sealing body (11) is a door opening sealing strip.

5. The sealing structure for a vehicle door without a B-pillar according to claim 4, characterized in that: The two sealing surfaces are the front door inner plate (26), the front door inner guard plate (43), the rear door inner guard plate (44), the rear door frame strip corner c (19), and the rear door frame strip corner d (20).

6. The sealing structure for a vehicle door without a B-pillar according to claim 4, characterized in that: The side enclosure assembly (24) is a full-circle structure, and the door opening sealing strip is a full-circle structure.

7. The sealing structure for a vehicle door without a B-pillar according to claim 1 or 2, characterized in that: The front door frame sealing strip extrusion section a (13) and the front door frame sealing strip extrusion section b (14) of the front door sealing body (5) are respectively clamped on the front door inner plate (26).

8. The sealing structure for a vehicle door without a B-pillar according to claim 3, characterized in that: The rear door frame sealing strip extrusion section a (21) and the rear door frame sealing strip extrusion section b (22) of the rear door sealing body (8) are respectively clamped on the rear door inner plate (28).

9. The sealing structure for a vehicle door without a B-pillar according to claim 4, characterized in that: The two-stage sealing body (11) is clamped on the inner and outer plate stoppers of the side enclosure assembly (24).

10. The sealing structure for a vehicle door without a B-pillar according to claim 4, characterized in that: The front door frame strip corner a (15) and the front door frame strip corner b (16), the front door frame strip corner a (15), and the front door frame strip corner b (16) of the front door sealing body (5) are fixed to the front door installation surface (4) by means of adhesive tape and buckles, the rear door frame sealing strip extrusion section a (21), the rear door frame sealing strip extrusion section b (22), the rear door frame sealing strip extrusion section d (23), the rear door frame strip corner c (19), the rear door frame strip corner d (20), and the rear door frame strip corner e (25) of the rear door sealing body (8) are fixed to the rear door installation surface (7) by means of adhesive tape and buckles, and the door opening sealing strips of the two sealing bodies (11) are fixedly connected to the two sealing surfaces by means of adhesive tape and buckles.

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