A zero-surface-difference door system

Abstract

The present invention discloses a zero-step difference door system, which includes a mounting seat and a lift. The mounting seat includes a lower base and an upper frame disposed thereon. The upper frame is divided into a fixed corner window mounting position and a movable glass mounting position. The lift is disposed on the lower base, and a zero-step difference corner window is disposed in the fixed corner window mounting position. A movable glass assembly driven by the lift to move up and down is installed in the movable glass mounting position. The movable glass assembly is composed of a movable glass and first and second two-shot injection molded sliders respectively disposed on both side edges thereof. Both the first and second two-shot injection molded sliders are composed of a support adhesive surface portion and an arc-shaped sliding portion injection molded thereon. The zero-step difference door system of the present invention can achieve a door side shape without steps and with zero-step difference, has a smoother appearance, a more integral mirror feeling, a beautiful shape, low cost, and has no special requirements for the glass thickness.

Description

Technical Field

[0001] The present invention relates to a zero-step difference door system. Background Art

[0002] At present, there are Y-direction step differences between the traditional automotive stamping and rolling window frame door structures and the components of each assembly on the side of the vehicle body and the moving glass surface styling. There are instabilities during the lifting and lowering of the moving glass, and the sealing force between the sealing lip of the sealing strip and the glass is uneven, which will affect the sealing performance.

[0003] Please refer to Figure 1 , the door system of the vehicle includes front and rear doors. Each door usually includes a mounting seat. The mounting seat includes a lower base 101 and an upper frame 102 provided thereon. An angle window and a moving glass window are usually provided inside the upper frame 102. A front door A pillar and a front door B pillar are provided on the front door, and a rear door B pillar and a rear door C pillar are provided on the rear door. A moving glass is installed inside the moving glass window. Most doors used on standard series vehicles are "non-flush" type. There are Y-direction step differences between the traditional automotive stamping and rolling window frame door structures and the components of each assembly on the side of the vehicle body and the A-surface styling of the moving glass, which are not aligned and affect the appearance of the vehicle body. The A-surface of the moving glass is the abbreviation of the outer surface of the moving glass.

[0004] "Flush" doors can significantly improve the aesthetic effect of the vehicle body. For example, a patent document with the patent publication number CN111284310A discloses a "flush" type door. The slider used therein is a whole-section single-piece slider, and the slider is integral. The guide rail strip and the guide groove sealing strip are composed of 1 cross-section to form a flexible guide rail cross-section; however, it has the following problems:

[0005] (1) It is difficult to match the curvature of the whole-section slider with the glass surface, and the pasting process is difficult.

[0006] (2) The sliding resistance of the single-piece slider is larger than that of the double-piece slider, and the system tolerance is not as good as that of the double-piece slider.

[0007] (3) For the design of an integral cross-section, the cross-section needs to ensure the functionality of the sliding part and the two performances of the sealing part at the same time, and it is difficult to balance the system deviation.

[0008] A patent document with the patent publication number WO2019 / 141675A1 discloses a sliding glass guide rail device, a vehicle door equipped with the sliding glass guide rail device, and a vehicle equipped with the sliding glass guide rail device. It uses a segmented single-piece slider, and the slider is split. The guide rail strip and the guide groove sealing strip are composed of 2 cross-sections to form a hard guide rail cross-section; it has the following disadvantages:

[0009] (1) The sliding resistance of the single-piece slider is larger than that of the double-piece slider, and the system tolerance is not as good as that of the double-piece slider.

[0010] (2) The circular design of the guide rail sealing strip is difficult to install and has high requirements for the manufacturing tolerances of system components. Otherwise, the positioning accuracy cannot be ensured.

[0011] The patent document with the patent publication number CN112918232 discloses a zero-step difference door structure and a door. It is similar to the structure disclosed in CN111284310A, but it discloses a specific slider structure in the drawings. The slider is of an integral type, and the guide rail strip and the guide groove sealing strip form a flexible guide rail section with 1 cross-section. Its disadvantages are as follows: in the design of an integral cross-section, the cross-section needs to ensure both the functionality of the sliding part and the two performances of the sealing part at the same time, and it is difficult to balance the system deviation. Summary of the Invention

[0012] The purpose of the present invention is to overcome the defects of the prior art and provide a zero-step difference door system, which can achieve a door side shape without steps and zero-step difference, with a smoother appearance, a more overall mirror-like feeling, a beautiful shape, low cost, and no special requirements for the glass thickness.

[0013] The technical solution to achieve the above purpose is: a zero-step difference door system, including a mounting seat and a lift. The mounting seat includes a lower base and an upper frame provided thereon. The upper frame is divided into a fixed corner window mounting position and a movable glass mounting position; the lift is provided on the lower base, wherein:

[0014] A zero-step difference corner window is provided in the fixed corner window mounting position;

[0015] The movable glass mounting position includes two door posts, which are the first door post and the second door post respectively. A first guide rail sealing strip is provided beside the first door post, and a decorative panel is provided outside the second door post, and a second guide rail sealing strip is provided on the inner side of the decorative panel;

[0016] A movable glass assembly driven by the lift to move up and down is installed in the movable glass mounting position. The movable glass assembly is composed of a movable glass and at least one section of first double-injection molded slider and at least one section of second double-injection molded slider respectively provided on both side edges thereof. Both the first double-injection molded slider and the second double-injection molded slider are composed of a support adhesive surface part and an arc-shaped sliding part injection molded thereon;

[0017] The support adhesive surface part of the first double-injection molded slider includes an adhesive part and a Y-direction positioning part connected thereto, and a plurality of arc-shaped sliding parts are injection molded on the Y-direction positioning part; the adhesive part of the first double-injection molded slider is adhered to one side edge of the inner side of the movable glass, and the Y-direction positioning part of the first double-injection molded slider is located in the first guide rail sealing strip;

[0018] The support and paste surface part of the second two-material injection molding slider includes a paste part, an X-direction positioning part and a Y-direction positioning part connected thereto, and a plurality of arc-shaped sliding parts are injection molded on the X-direction positioning part and the Y-direction positioning part respectively; the paste part of the second two-material injection molding slider is pasted on the other edge of the inner side of the moving glass, and the X-direction positioning part and the Y-direction positioning part of the second two-material injection molding slider are respectively located in the second guide rail sealing strip;

[0019] During the lifting process of the moving glass, the X-direction and Y-direction trajectory limits are carried out by the first two-material injection molding slider, the first guide rail sealing strip, the second two-material injection molding slider and the second guide rail sealing strip; the outer surface of the moving glass is flush with the outer surfaces of the corner window glass of the zero-gap angle window and the outer surface of the trim panel respectively.

[0020] In the above zero-gap door system, the support and paste surface part is made of A66GF20 - 50% GF material, the sliding part is made of POM material, and both the first two-material injection molding slider and the second two-material injection molding slider are integrally injection molded structures.

[0021] In the above zero-gap door system, the arc-shaped sliding part on the Y-direction positioning part of the first two-material injection molding slider has point contact with the inner side of the first guide rail sealing strip; the arc-shaped sliding part on the Y-direction positioning part of the second two-material injection molding slider has point contact with the inner side of the second guide rail sealing strip.

[0022] In the above zero-gap door system, both the first guide rail sealing strip and the second guide rail sealing strip include a U-shaped support structure and a sealing lip connected thereto, and a weakening groove is provided inside the corner at the bottom of the U-shaped support structure;

[0023] The sealing lip of the first guide rail sealing strip is located between the moving glass and the corner window glass of the zero-gap angle window;

[0024] The sealing lip of the second guide rail sealing strip is located between the moving glass and the trim panel;

[0025] The U-shaped support structure restricts the crosstalk of the corresponding guide rail sealing strip in the X-direction and Y-direction.

[0026] In the above zero-gap door system, a barb structure for installing the second guide rail sealing strip is provided inside the trim panel, the second guide rail sealing strip is installed in the barb structure, and the barb structure performs X-direction and Y-direction limits; a boss is provided on the outer side of the U-shaped support structure of the second guide rail sealing strip, and a groove adapted to the boss is provided in the barb structure, and the boss is clamped in the groove for Z-direction limit.

[0027] The above zero-gap door system, wherein the U-shaped support structure is made of high-hardness EPDM or TPV or PP material above SHA80 or a steel skeleton through a composite extrusion process;

[0028] The sealing lip is connected to the U-shaped support structure through an integral edge-sealing injection molding process of TPV or EPDM.

[0029] The above zero-gap door system, wherein the zero-gap corner window adopts an assembled zero-gap corner window, including a guide groove sealing strip and two separate parts of a corner window. The corner window is connected together by a rail and a corner window glass through a process of edge-sealing injection molding or gluing; the guide groove sealing strip and the first rail sealing strip are respectively assembled in the rail of the corner window; the rail adopts a plastic rail or an aluminum rail.

[0030] The above zero-gap door system, wherein the zero-gap corner window adopts a zero-gap corner window with an integral injection molding and edge-sealing of the guide groove sealing strip, which is composed of a guide groove sealing strip installed in the rail and a corner window glass integrated thereon through an edge-sealing injection molding process; the first rail sealing strip is installed in the rail of the zero-gap corner window.

[0031] The above zero-gap door system, wherein the first rail sealing strip is provided with a hook, and a clamping platform adapted to the hook is provided in the rail, and the first rail sealing strip is clamped in the rail.

[0032] The above zero-gap door system, wherein the guide groove sealing strip adopts TPV and EPDM materials, the lip part of the guide groove sealing strip adopts a co-extruded sliding material or flocking or coating material, and the surface of each cross-section lip part of the guide groove sealing strip is independently fitted and matched with the inner surface of the moving glass.

[0033] The zero-gap door system of the present invention solves the problem of the Y-direction step difference between the traditional automotive stamping and rolling window frame door structures and the side body assembly components and the A-surface of the moving glass, and improves the appearance effect. It effectively reduces the wind resistance coefficient, reduces wind resistance noise, ensures NVH performance, enhances the Y-direction and X-direction limits during the lifting process of the moving glass to ensure the position stability during the lifting process of the moving glass, ensures the uniform sealing force between the sealing lip of the sealing strip and the glass, and ensures good sealing performance.

[0034] The advantages of the zero-gap door system of the present invention compared with the existing traditional integral stamping door system are as follows:

[0035] (1) The appearance is smoother, with a more overall mirror-like feeling and beautiful shape;

[0036] (2) It reduces the step difference of the side component matching, reduces the wind resistance and noise influence, and improves the sound quality of the door;

[0037] (3) The positioning of the glass in the Y and X directions is more reliable and robust.

[0038] The advantages of the zero-face difference door system of the present invention over the existing frameless door system are as follows:

[0039] (1) The window regulator assembly has low cost and does not require separate matching;

[0040] (2) The sheet metal process is simple and the cost is low;

[0041] (3) There are no special requirements for glass thickness. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is the side view of the whole vehicle;

[0043] Figure 2 1. This is an exploded structural diagram of the zero-face difference door system of Example 1 (front door);

[0044] Figure 3 It is a cross-sectional view at the A-pillar position;

[0045] Figure 4 It is a cross-sectional view at the B-pillar position;

[0046] Figure 5 This is a schematic structural diagram of a first double-injection molded slider assembly;

[0047] Figure 6 Schematic diagram of the structure of the second double-injection slider assembly;

[0048] Figure 7 This is a structural diagram of a zero-face difference angle window with an integral injection-molded edge-sealed guide groove sealing strip according to Example 1;

[0049] Figure 8 for Figure 7 Cross-section at AA;

[0050] Figure 9 This is an exploded structural diagram of the zero-face difference door system of Example 2 (rear door);

[0051] Figure 10 This is a structural diagram of the guide groove sealing strip integral injection-molded edge-sealed zero-face difference angle window of Example 2. DETAILED DESCRIPTION

[0052] In order to enable those skilled in the art to better understand the technical solution of the present invention, the specific implementation methods thereof are described in detail below with reference to the accompanying drawings:

[0053] Example 1:

[0054] See also Figures 1 to 8, Embodiment 1 of the present invention, a zero-surface-difference door system, designed for the front door, includes a mounting seat and a lifter 6. The mounting seat includes a lower base 101 and an upper frame 102 provided thereon. The upper frame 102 is divided into a fixed corner window mounting position and a movable glass mounting position; the lifter 6 is provided on the lower base 101.

[0055] A zero-surface-difference corner window is provided in the fixed corner window mounting position.

[0056] The movable glass mounting position includes two door pillars, which are the first door pillar and the second door pillar respectively. A first guide rail sealing strip 4a is provided beside the first door pillar, and a decorative panel 3 is provided outside the second door pillar. A second guide rail sealing strip 3a is provided on the inner side of the decorative panel 3; in this embodiment, the first door pillar is the front door A pillar, the second door pillar is the front door B pillar, the first guide rail sealing strip is the A pillar guide rail sealing strip, the decorative panel 3 is the B pillar decorative panel, and the second guide rail sealing strip is the B pillar guide rail sealing strip.

[0057] A movable glass assembly 2 driven by the lifter 6 is installed in the movable glass mounting position. The movable glass assembly 2 is composed of a movable glass 20 and at least one section of a first double-injection molding slider 2a and at least one section of a second double-injection molding slider 2b provided on both sides of its edge. Both the first double-injection molding slider 2a and the second double-injection molding slider 2b are composed of a support bonding surface part and an arc-shaped sliding part injection molded thereon. The support bonding surface part uses A66GF20 - 50%GF material, and the sliding part uses POM material. Both the first double-injection molding slider and the second double-injection molding slider are integrally injection molded from A66GF20 - 50%GF material and POM material.

[0058] Please refer to again Figure 3 , The zero-surface-difference corner window can adopt an assembled zero-surface-difference corner window, which includes two separate parts, a guide groove sealing strip 1 and a corner window 4. The corner window 4 is connected together by a plastic guide rail or an aluminum guide rail and a corner window glass through a process of edge injection molding or gluing; the guide groove sealing strip 1 is assembled in the guide rail 40 of the corner window; it is also one of the current conventional processing methods for triangular windows. Then, the first guide rail sealing strip 4a is assembled to the inner side of the guide rail to complete the assembled zero-surface-difference corner window.

[0059] Please refer to again Figure 7 and Figure 8 , The zero-surface-difference corner window can also adopt a zero-surface-difference corner window with an integrally injection-molded and edge-sealed guide groove sealing strip, which is composed of a guide groove sealing strip 1 installed in the guide rail and a corner window glass 41 integrated thereon through an edge injection molding process; the first guide rail sealing strip 4a is installed in the guide rail 40 of the zero-surface-difference corner window. It can improve the performance of NVH and the water sealing path, reduce the assembly working hours of the assembly, and reduce the component cost.

[0060] The guide groove sealing strip 1 is made of TPV and EPDM materials. The lip part 11 of the guide groove sealing strip 1 is made of co-extruded sliding material or flocked or coated material. The surface of each cross-section lip part of the guide groove sealing strip 1 is independently fitted and matched with the inner surface of the moving glass, ensuring a stable sealing width and sealing force, that is, compressive load. The number of sealing lips of the guide groove sealing strip 1 and the sealing width in contact with the moving glass are designed according to the overall vehicle appearance and performance requirements.

[0061] The A-pillar guide rail sealing strip 4a and the B-pillar guide rail sealing strip 3a both include a U-shaped support structure and a sealing lip connected thereto. The U-shaped support structure is made of high-hardness EPDM or TPV or PP material above SHA80 or a steel skeleton through a composite extrusion process. The sealing lip is connected to the U-shaped support structure by an integral edge-sealing injection molding process of TPV or EPDM. The U-shaped support structure is used to limit the crosstalk of the corresponding guide rail sealing strip in the X and Y directions.

[0062] Please refer to again Figure 3 , the A-pillar guide rail sealing strip 4a includes a U-shaped support structure 4a1 and a sealing lip 4a2 connected thereto. The sealing lip 4a2 is located between the moving glass 20 and the corner window glass 41 of the zero surface difference corner window. The upper part of the A-pillar guide rail sealing strip 4a is designed with an injection molding feature for clamping the guide rail of the zero surface difference corner window, restricting the crosstalk of the A-pillar guide rail sealing strip 4a in the Z direction within the guide rail of the zero surface difference corner window. Specifically, a hook 4a3 is provided on the A-pillar guide rail sealing strip 4a, and a catch 401 adapted to the hook is provided in the guide rail 40. The hook 4a3 is clamped on the catch 401. In this way, the first guide rail sealing strip 4a is clamped in the guide rail 40; the sealing lip 4a2 of the A-pillar guide rail sealing strip 4a serves as a sealing structure between the moving glass 20 and the corner window glass 41. The A-pillar guide rail sealing strip 4a is not restricted in the X direction and can effectively absorb the X-direction tolerance stack-up. An attenuation groove 4a4 is designed on the inner side of the bottom corner of the U-shaped support structure 4a1 of the A-pillar guide rail sealing strip. TPV or EPDM 60SHA - 75SHA material is selected and the attenuation groove structure is designed. After the U-shaped opening of the A-pillar guide rail sealing strip is pressed, stress is released at the position of the attenuation groove 4a4, facilitating the X-direction installation of the A-pillar guide rail sealing strip and inserting it into the corner window or the trim panel installation groove.

[0063] Please refer to again Figure 4, the B-pillar guide rail sealing strip 3a includes a U-shaped support structure 3a1 and a sealing lip 3a2 connected thereto. The sealing lip 3a2 is located between the moving glass 20 and the trim panel 3. An inverted hook structure 31 for installing the B-pillar guide rail sealing strip 3a is provided inside the trim panel 3. The B-pillar guide rail sealing strip 3a is installed in the inverted hook structure 31. The inverted hook structure 31 performs X-direction and Y-direction limiting to prevent the B-pillar guide rail sealing strip 3a from moving in the X-direction and Y-direction. A boss 3a3 is provided on the outer side of the U-shaped support structure 3a1 of the B-pillar guide rail sealing strip 3a, and a groove 311 adapted to the boss is provided inside the inverted hook structure 31. The boss 3a3 is snap-fitted into the groove 311 for Z-direction limiting. After the second guide rail sealing strip 3a and the trim panel 3 are connected, they form a trim panel assembly. A weakened groove 3a4 is designed inside the corner at the bottom of the U-shaped support structure 3a1 of the B-pillar guide rail sealing strip 3a. The B-pillar guide rail sealing strip 3a is made of TPV or EPDM 60SHA - 75SHA material and is designed with a weakened groove structure. After the U-shaped opening of the B-pillar guide rail sealing strip is pressed, stress is released at the position of the weakened groove 3a4, which is convenient for the X-direction installation of the B-pillar guide rail sealing strip and for inserting it into the corner window or the trim panel installation groove.

[0064] Please refer to again Figure 5 , the support and paste surface part of the first two-shot injection slider 2a includes a paste part 2a1 and a Y-direction positioning part 2a2 connected thereto. A plurality of arc-shaped sliding parts 2a3 are injection-molded on the Y-direction positioning part 2a2. The paste part 2a1 of the first two-shot injection slider 2a is pasted on one side edge of the inner side of the moving glass 20, and the Y-direction positioning part 2a2 of the first two-shot injection slider 2a is located inside the first guide rail sealing strip.

[0065] Please refer to again Figure 6 , the support and paste surface part of the second two-shot injection slider 2b includes a paste part 2b1, an X-direction positioning part 2b3 and a Y-direction positioning part 2b2 connected thereto. A plurality of arc-shaped sliding parts 2b4 are injection-molded on the X-direction positioning part 2b3 and the Y-direction positioning part 2b2 respectively. The paste part 2b1 of the second two-shot injection slider is pasted on the other side edge of the inner side of the moving glass 20, and the X-direction positioning part 2b3 and the Y-direction positioning part 2b2 of the second two-shot injection slider are respectively located inside the B-pillar guide rail sealing strip 3a.

[0066] During the lifting process of the moving glass 20, the first two-shot injection slider 2a, the A-pillar guide rail sealing strip 4a, the second two-shot injection slider 2b and the B-pillar guide rail sealing strip 3a perform X-direction and Y-direction trajectory limiting. The outer surface of the moving glass 20 is flush with the outer surface of the corner window glass 41 of the zero-gap corner window and the outer surface of the trim panel 3 respectively.

[0067] The arc-shaped sliding part 2a3 on the Y-direction positioning part 2a2 of the first two-shot injection molding slider 2a has point contact with the inner side of the U-shaped support structure 4a1 of the A-pillar guide seal strip 4a; the arc-shaped sliding part 2b4 on the Y-direction positioning part 2b2 of the second two-shot injection molding slider 2b has point contact with the inner side of the U-shaped support structure 3a1 of the B-pillar guide seal strip 3a. This structural design of point contact can effectively reduce the sliding resistance and improve the durability service life of the system. The first two-shot injection molding slider 2a and the second two-shot injection molding slider 2b are respectively pasted to both side edges of the movable glass to form the movable glass assembly. According to the surface curvature of the movable glass and the different Z-direction heights of the two side edges of the front door A-pillar and the front door B-pillar, one or more segments of two-shot injection molding sliders can be pasted respectively to ensure the stability such as the durability of glass lifting.

[0068] A front door B-pillar lower guide rail bracket 5 is provided below the front door B-pillar. The front door B-pillar lower guide rail bracket 5 plays a role in X-direction and Y-direction limiting after the glass descends to the bottom dead center, and can effectively reduce the shaking amount of the glass when closing the door.

[0069] Embodiment 2:

[0070] Please refer to Figure 9 and Figure 10 , the main difference between the second embodiment of the present invention and the first embodiment is that it is designed on the rear door. In this embodiment, the first door pillar is the rear door C-pillar, the second door pillar is the rear door B-pillar, the first guide seal strip 4a is the C-pillar guide seal strip, the trim panel 3 is the B-pillar trim panel, and the second guide seal strip 3a is the B-pillar guide seal strip. A rear door B-pillar lower guide rail bracket 5b is provided below the rear door B-pillar, and a rear door C-pillar lower guide rail bracket 5c is provided below the rear door C-pillar. The rear door B-pillar lower guide rail bracket 5b and the rear door C-pillar lower guide rail bracket 5c play a role in X-direction and Y-direction limiting after the glass descends to the bottom dead center, and can effectively reduce the shaking amount of the glass when closing the door. The cross-sectional view at the position of the rear door C-pillar refers to the cross-sectional view at the position of the A-pillar in Figure 3 , the cross-sectional view at the position of the rear door B-pillar refers to the cross-sectional view at the position of the B-pillar in Figure 4 ; Figure 10 The cross-sectional view at C-C refers to the cross-sectional view at A-A in Figure 7 .

[0071] Embodiment 3:

[0072] Combining Embodiment 1 and Embodiment 2, the zero-step difference door system of the present invention is adopted on both the front and rear doors.

[0073] The zero-step difference door system of the present invention mainly realizes the X-direction and Y-direction positioning structural design of the second two-shot injection molding slider 2b during the lifting process of the movable glass through the positioning structure between the second two-shot injection molding slider 2b and the second guide seal strip 3a inside the trim panel 3, so as to meet the realization of the side surface without steps and zero-step difference styling (seeFigure 4 ):. At the same time, the system of the present invention does not limit the tolerance superposition in the X direction for the assembly in the X direction and the processing and manufacturing of components. Therefore, it can effectively absorb the tolerance superposition in the X direction (see Figure 3 ).

[0074] For the zero surface difference door system of the present invention, there are no special design requirements for the window regulator 6. The single-rail window lifter assembly only needs to provide the boosting force in the Z direction (i.e., the up / down direction) of the calibrated power. The window regulator 6 can adopt a single-rail structure. By providing the boosting force for rising through the motor in the window regulator 6, the smooth lifting function and appearance effect of the moving glass can be realized. At the same time, the system weight can be effectively reduced and the cost of system components can be reduced. For the lifting trajectory and limit of the window regulator, the first double-shot injection-molded slider 2a and the second double-shot injection-molded slider 2b on the moving glass 2 assembly, the second guide rail sealing strip 3a on the trim panel assembly, the trim panel 3, and the first guide rail sealing strip 4a connected to the zero surface difference corner window limit the X-direction and Y-direction trajectories, so as to achieve the matching of the outer side flatness and the appearance effect of zero surface difference.

[0075] The zero surface difference door system of the present invention limits the position of the moving glass assembly in the Y direction through the matching limit structure between the first double-shot injection-molded slider 2a on the moving glass assembly 2 and the first guide rail sealing strip 4a on the inner side of the guide rail of the zero surface difference corner window. At the same time, the second guide rail sealing strip 3a on the inner side of the B-pillar trim panel and the second double-shot injection-molded slider 2b on the moving glass assembly 2 match the limit structure to limit the position of the moving glass assembly in the Y direction and X direction. The sealing lip of the guide groove sealing strip 1 is hidden in the Y-direction inner side of the moving glass 20 and the trim panel 3, so as to achieve the design of zero surface difference between the A surface of the moving glass and the A surface of the trim panel. In the zero surface difference door system of the present invention, only the Y-direction position is limited between the first guide rail sealing strip 4a on the inner side of the corner window and the first double-shot injection-molded slider 2a, effectively absorbing the influence of the tolerance superposition of the processing and assembly of each component. The design concept of the zero surface difference door system of the present invention only requires the window regulator 6 to provide the boosting force in the Z direction for the glass lifting, so as to achieve the stability of the glass lifting and the requirements of the flatness and alignment of the moving glass in the X direction and Y direction with the side components such as the trim panel and the corner window during the lifting process.

[0076] The zero surface difference door system of the present invention has the Y-direction positioning of the moving glass during the lifting process achieved by the first two-shot injection molding slider 2a and the second two-shot injection molding slider 2b on the moving glass respectively matching and positioning in the Y-direction with the zero surface difference corner window and the B-pillar trim 3; the X-direction positioning of the moving glass during the lifting process is achieved by the second two-shot injection molding slider 2b on the moving glass and the B-pillar trim assembly matching and positioning in the X-direction. Different from the traditional window regulator X-direction and Y-direction limiting structures. The zero surface difference door system of the present invention has a more reliable design concept for X-direction and Y-direction positioning compared to the traditional window regulator, and the positions of the moving glass in the X-direction and Y-direction during the lifting process are more stable. The front door B-pillar lower rail bracket 5, the rear door B-pillar lower rail bracket 5b, and the rear door C-pillar lower rail bracket 5c play the role of X-direction and Y-direction limiting after the glass descends to the bottom dead center, which can effectively reduce the shaking amount of the glass when closing the door.

[0077] The zero surface difference door system of the present invention solves the problem of the Y-direction step surface difference between the traditional automotive stamping and rolling window frame door structures and the moving glass A-surface styling of each assembly on the side of the vehicle body, improving the appearance effect. It effectively reduces the wind resistance coefficient, reduces wind resistance noise, ensures NVH performance, enhances the Y-direction and X-direction limiting during the lifting process of the moving glass to ensure the position stability during the lifting process of the moving glass, ensures the uniform sealing force between the sealing lip of the sealing strip and the glass, and ensures good sealing performance.

[0078] Compared with the existing frameless door system structure, the zero surface difference door system of the present invention has no special matching styling requirements for the sheet metal, window regulator assembly, and the thickness of the moving glass. On the premise of ensuring that the manufacturing and assembly processes of the traditional integral stamping door sheet metal and NVH performance are not affected, it achieves the styling effect of the components on the side of the vehicle body being flush and having zero surface difference; and effectively controls the cost of the door system components.

[0079] According to the height of the moving glass, segmented two-shot injection molding sliders can be used. Moreover, the guide rail strip and the guide groove sealing strip are split-type, consisting of two cross-sections to form a flexible guide rail cross-section, which better matches the curvature of the glass surface, and the two-shot injection molding slider is convenient to bond; the two-shot injection molding slider can effectively reduce the system resistance, has strong tolerance for system component deviations, and good tolerance; the guide rail sealing strip has a U-shaped design, is easy to install, and adopts traditional processing and manufacturing.

[0080] In summary, the zero surface difference door system of the present invention can achieve a door side without steps and zero surface difference styling, with a smoother appearance, a more overall mirror-like feeling, beautiful styling, low cost, and no special requirements for the glass thickness.

[0081] Those of ordinary skill in the art in this technical field should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. As long as within the scope of the essential spirit of the present invention, changes and modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A zero-face difference vehicle door system, comprising a mounting base and an elevator, wherein the mounting base comprises a lower base and an upper frame disposed thereon, the upper frame being divided into a fixed corner window mounting position and a movable glass mounting position; the elevator being disposed on the lower base, characterized in that: A zero-face difference corner window is provided in the fixed corner window installation position; The movable glass installation position includes two door pillars, the two door pillars are respectively a first door pillar and a second door pillar, a first guide rail sealing strip is provided next to the first door pillar, a decorative panel is provided on the outside of the second door pillar, and a second guide rail sealing strip is provided on the inside of the decorative panel; A movable glass assembly driven to rise and fall by the elevator is installed in the movable glass installation position. The movable glass assembly consists of a movable glass and at least one first double-injection molded slider and at least one second double-injection molded slider provided on both side edges of the movable glass. The first double-injection molded slider and the second double-injection molded slider each consist of a supporting adhesive surface portion and an arc-shaped sliding portion molded thereon. The supporting adhesive surface of the first double-injection molded slider includes an adhesive portion and a Y-direction positioning portion connected thereto, wherein the Y-direction positioning portion is injection-molded with a plurality of arc-shaped sliding portions; the adhesive portion of the first double-injection molded slider is adhered to a side edge of the inner side of the movable glass, and the Y-direction positioning portion of the first double-injection molded slider is located within the first guide rail sealing strip; The supporting and pasting surface of the second double-injection molded slider includes a pasting portion and an X-direction positioning portion and a Y-direction positioning portion connected thereto, wherein the X-direction positioning portion and the Y-direction positioning portion are respectively molded with a plurality of arc-shaped sliding portions; the pasting portion of the second double-injection molded slider is pasted to the other inner edge of the movable glass, and the X-direction positioning portion and the Y-direction positioning portion of the second double-injection molded slider are respectively located within the second guide rail sealing strip; During the lifting and lowering process of the movable glass, the first double-injection molded slider, the first guide rail sealing strip, the second double-injection molded slider and the second guide rail sealing strip are used to limit the X- and Y-direction tracks; the outer surface of the movable glass is flush with the outer surface of the corner window glass of the zero-face difference corner window and the outer surface of the decorative panel.

2. The zero-face difference door system according to claim 1, characterized in that: The supporting adhesive surface part is made of A66GF20-50% GF material, the sliding part is made of POM material, and the first double-injection molded slider and the second double-injection molded slider are both integrally injection molded structures.

3. The zero-face difference door system according to claim 1, characterized in that: The arc-shaped sliding part on the Y-direction positioning part of the first double-injection molded slider is in point contact with the inner side of the first guide rail sealing strip; the arc-shaped sliding part on the Y-direction positioning part of the second double-injection molded slider is in point contact with the inner side of the second guide rail sealing strip.

4. The zero-face difference door system according to claim 1, characterized in that: The first guide rail sealing strip and the second guide rail sealing strip each include a U-shaped support structure and a sealing lip connected thereto, and a weakened groove is provided on the inner side of the corner of the bottom of the U-shaped support structure; The sealing lip of the first guide rail sealing strip is located between the sliding glass and the corner window glass of the zero-face difference corner window; The sealing lip of the second guide rail sealing strip is located between the movable glass and the decorative panel; The U-shaped support structure limits the movement of the corresponding guide rail sealing strip in the X direction and the Y direction.

5. The zero-face difference door system according to claim 4, characterized in that: A hook structure for installing the second guide rail sealing strip is provided on the inner side of the decorative panel, and the second guide rail sealing strip is installed in the hook structure, and the hook structure is used to limit the X and Y directions; a boss is provided on the outer side of the U-shaped support structure of the second guide rail sealing strip, and a groove adapted to the boss is provided in the hook structure, and the boss is clamped in the groove for Z direction limitation.

6. The zero-face difference door system according to claim 4, characterized in that: The U-shaped support structure is produced by composite extrusion using high-hardness EPDM, TPV, or PP materials with a hardness of SHA80 or above or a steel frame; The sealing lip is connected to the U-shaped supporting structure through an integrated edge sealing injection molding process of TPV or EPDM.

7. The zero-face difference door system according to claim 1, characterized in that: The zero-face difference corner window adopts an assembled zero-face difference corner window, which includes two separate parts: a guide groove sealing strip and a corner window. The corner window is connected to the guide rail and the corner window glass through an edge injection molding process or a gluing process; the guide groove sealing strip and the first guide rail sealing strip are respectively assembled in the guide rail of the corner window; the guide rail adopts a plastic guide rail or an aluminum guide rail.

8. The zero-face difference door system according to claim 1, characterized in that: The zero-face difference angle window adopts a guide groove sealing strip integrated injection molding edge-sealing type zero-face difference angle window, which consists of a guide groove sealing strip installed in the guide rail and a corner window glass integrated thereon through the edge-sealing injection molding process; the first guide rail sealing strip is installed in the guide rail of the zero-face difference angle window.

9. A zero-face difference door system according to claim 7 or 8, characterized in that: A hook is provided on the first guide rail sealing strip, a clamping platform adapted to the hook is provided in the guide rail, and the first guide rail sealing strip is clamped in the guide rail.

10. A zero-face difference door system according to claim 7 or 8, characterized in that: The guide groove sealing strip is made of TPV and EPDM materials, and the lip portion of the guide groove sealing strip is made of co-extruded sliding material, flocking or coating material. The surface of the lip portion of each section of the guide groove sealing strip is independently fitted and matched with the inner surface of the movable glass.

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