Automobile front door A-pillar glass slide rail

Abstract

The application discloses a kind of car front door A column glass slide rail, belong to automobile parts technical field, including corner piece, the corner piece includes first side plate, second side plate and connecting strip, the connecting strip connects the first side of first side plate with the first side of second side plate, the cross section of connecting strip is U-shaped structure, multiple positioning teeth are arranged in connecting strip, multiple positioning teeth are sequentially spaced along the direction where connecting strip is located, and the inner concave surface of connecting strip is connected to the positioning tooth.The application effectively strengthens product rigidity and improves assembly accuracy by spacing positioning teeth on the inner concave surface of connecting strip.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and in particular to a sliding glass rail for the A-pillar of a car front door. Background Technology

[0002] The A-pillar area of ​​the front door is a key guiding and sealing area for the vehicle's power window system. The window rails, through their corner joint structure, work in conjunction with the door sheet metal, guide rails, and external sealing strips to provide precise guidance for window operation and to achieve wind noise isolation, waterproofing, and dustproofing. Its assembly precision and structural reliability directly affect the smoothness of window operation, sealing performance, and overall vehicle NVH (noise, vibration, and harshness) quality.

[0003] In the prior art, various optimization schemes have been proposed for the sealing and noise reduction of the A-pillar area. For example, Chinese patent application "A frameless car door A-pillar guide groove structure", application publication number: CN115071385A, the invention includes a car door sheet metal, a car door triangular sheet metal and an outer decorative panel on the side of the car door sheet metal near the rearview mirror, a guide groove corner on the car door triangular sheet metal, the outer decorative panel and the guide groove corner are extruded and connected, and foam is provided between the outer decorative panel and the car door triangular sheet metal; a guide groove rail is provided on the car door sheet metal, and an A-pillar guide groove body is provided in the guide groove rail; the frameless A-pillar guide groove body of the present invention is matched with the car door sheet metal and the guide groove rail by injection molding corner, and at the same time, combined with the outer outer decorative panel and foam, a completely sealed structure is formed, which has dual sealing performance. The first layer is the seal between the glass and the sealing strip, and the second layer is the second seal formed between the guide groove and the foam and the outer decorative panel; thus improving the sealing performance of the A-pillar.

[0004] However, the aforementioned technical solutions primarily focus on optimizing sealing performance, paying insufficient attention to the assembly process of the glass sliding rail body in the A-pillar area of ​​the front door. In practical engineering applications, traditional glass sliding rail structures suffer from the following technical problems: the existing corner fittings are mostly surface contact or single-point positioning, which easily leads to problems such as incomplete assembly, misalignment, or excessive pressing. When the glass is raised or lowered, its edges are prone to continuous scraping against the root of the corner or the lip, not only producing abnormal noise but also accelerating corner wear and shortening the product's service life. Utility Model Content

[0005] The technical problem to be solved by this application is to provide a sliding rail for the A-pillar glass of a car front door, which effectively strengthens the rigidity of the product and improves the assembly accuracy by arranging positioning teeth at intervals on the concave surface of the connecting strip.

[0006] The technical solution adopted in this application is: a sliding glass rail for the A-pillar of a car front door, including a corner connector, the corner connector including a first side plate, a second side plate and a connecting strip, the connecting strip connecting the first side edge of the first side plate and the first side edge of the second side plate, the cross-section of the connecting strip is U-shaped, and multiple positioning teeth are arranged inside the connecting strip, the multiple positioning teeth are arranged sequentially at intervals along the direction of the connecting strip, and the positioning teeth are connected to the concave surface of the connecting strip.

[0007] Compared with existing technologies, the advantages of this application are as follows: First, the connecting strip has a U-shaped cross-section, and the positioning teeth are directly connected to its concave surface, forming a reinforced structure similar to a reinforcing rib. This effectively improves the overall rigidity of the corner piece, preventing it from twisting or collapsing during assembly and use, and ensuring the guiding accuracy of the glass slide rail. The positioning teeth are spaced out rather than continuously distributed, reducing material usage while ensuring structural strength and positioning function, thus contributing to product lightweighting and lowering manufacturing costs.

[0008] Secondly, the multiple positioning teeth spaced apart on the concave surface of the connecting strip can form multi-point contact positioning with the door guide rail or sheet metal. Compared with single-point or line contact, this significantly improves the positioning accuracy and repeatability of the assembly and reduces assembly deviation.

[0009] Furthermore, the U-shaped connecting strip forms a stable glass guiding space, and the spaced layout of the positioning teeth avoids continuous contact with the glass edge. This retains the guiding constraint function while reducing the friction pair area, effectively preventing scratches and interference with the corner pieces during glass lifting and lowering, and reducing the risk of wear.

[0010] In addition, the first side plate, the second side plate, and the U-shaped connecting strip with positioning teeth are integrally formed into a corner piece, integrating the guiding, positioning, and supporting functions into a single part, which simplifies the number of parts and assembly process in the A-pillar area.

[0011] In some embodiments of this application, the positioning teeth are sheet-like structural components, and the thickness of the positioning teeth gradually increases on the side near the bottom surface of the connecting strip.

[0012] Preferably, the length of the positioning teeth is 3mm-4mm.

[0013] Thickening the root of the positioning tooth improves its bending strength and fracture resistance, while thinning the top saves material and reduces weight. The gradual thickness facilitates insertion and assembly and optimizes stress distribution.

[0014] In some embodiments of this application, at least one reinforcing piece is in the form of an L-shape, and the L-shaped reinforcing piece is connected to the inner wall surface of the second side plate.

[0015] The L-shaped reinforcing plate has better rigidity than a simple plate structure. After connecting with the inner wall of the second side plate, it forms a three-dimensional support, which significantly enhances the local deformation resistance of the second side plate.

[0016] In some embodiments of this application, a triangular groove is provided on the surface of the first side plate, and a plurality of reinforcing plates are provided on the inner wall surface of the first side plate facing the second side plate, with the plurality of reinforcing plates arranged at intervals.

[0017] The triangular grooves allow for localized weight reduction and component avoidance, while the intermittent reinforcement plates on the inner wall can specifically enhance the structural strength of the first side plate without increasing external complexity, thus avoiding material redundancy.

[0018] In some embodiments of this application, the reinforcing sheet is disposed perpendicular to the inner wall surface of the first side plate, and the included angle between the reinforcing sheet and the first side edge of the first side plate is an acute angle.

[0019] Vertical orientation maximizes the bending resistance of the cross section, while an acute angle with the side optimizes the resistance to forces acting in the direction of glass lifting and lowering, and improves the direction of local stress transmission.

[0020] In some embodiments of this application, multiple reinforcing plates are arranged parallel to each other, and the positioning teeth are arranged parallel to the reinforcing plates.

[0021] The parallel arrangement ensures that each reinforcing sheet is subjected to uniform force and has good consistency in the molding process; the positioning teeth are parallel to the reinforcing sheets, which facilitates mold demolding in the same direction and reduces manufacturing difficulty and cost.

[0022] In some embodiments of this application, the second side of the second side plate is formed by bending its edge inward, the second side of the second side plate is U-shaped, and there is a gap between the second side of the second side plate and the second side of the first side plate.

[0023] The U-shaped bending structure itself has high rigidity, and the gap between it and the second side of the first side plate can be directly used as the housing and connection space for the slide rail components, simplifying the assembly interface design.

[0024] In some embodiments of this application, a slide rail component is also included. The slide rail component is a long strip structure with an overall U-shaped cross-section. The slide rail component is installed between the second side of the second side plate and the second side of the first side plate. One end face of the slide rail component is connected to the corner connector, and the corner connector is located on one side of the slide rail component.

[0025] The slide rails and corner fittings adopt a modular design with end-to-end contact, which not only retains their functional independence but also facilitates separate manufacturing, flexible installation, and subsequent maintenance and replacement.

[0026] In some embodiments of this application, an interface is provided at the end of the second side of the second side plate, and the interface is bent away from the first side plate.

[0027] The bent interface forms a guide and overlapping surface, which facilitates smooth transition assembly, avoids sharp corner interference, and improves local compatibility.

[0028] In some embodiments of this application, one side and the surface of the interface are open structures, and the wall thickness of the other side of the interface is 3mm-4mm.

[0029] The open structure provides room for assembly and allowance for elastic deformation; the 3-4mm wall thickness range ensures structural strength while taking into account a certain degree of flexibility, achieving a balance between lightweight and reliability.

[0030] Based on common knowledge in the field, the above-described embodiments can be combined arbitrarily. Attached Figure Description

[0031] The present application will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0032] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the corner joint structure of this application. Figure 1 ; Figure 3 This is a schematic diagram of the corner joint structure of this application. Figure 2 ; Figure 4 for Figure 2 Sectional view of section AA; Figure 5 for Figure 2 A sectional view of section BB in the middle.

[0033] The specific explanations of the reference numerals in the attached drawings are as follows: 1. Corner joint; 2. First side plate; 3. Second side plate; 4. Connecting strip; 5. Positioning tooth; 6. Reinforcing plate; 7. Slide rail; 8. Interface. Detailed Implementation

[0034] The present application will now be described in detail with reference to the accompanying drawings.

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0036] A sliding glass rail for the A-pillar of a car front door, as described in Embodiment 1 Figures 1 to 5 As shown: It includes a corner joint 1, which includes a first side plate 2, a second side plate 3 and a connecting strip 4. The connecting strip 4 connects the first side edge of the first side plate 2 and the first side edge of the second side plate 3. The first side plate 2, the second side plate 3 and the U-shaped connecting strip 4 with positioning teeth 5 are integrally formed into a corner joint 1, which integrates guiding, positioning and supporting functions into a single part, simplifying the number of parts and assembly process in the A-pillar area.

[0037] The cross-section of the connecting strip 4 is U-shaped. The U-shaped connecting strip 4 forms a stable glass guiding space. The spaced arrangement of the positioning teeth 5 avoids continuous contact with the edge of the glass. It retains the guiding and restraining function and reduces the friction pair area. It can effectively prevent the glass from scratching and interfering with the corner piece 1 when it is raised and lowered, and reduce the risk of wear.

[0038] The connecting strip 4 is equipped with multiple positioning teeth 5, which can form multi-point contact positioning with the door guide rail or sheet metal. Compared with single-point or line contact, it significantly improves the positioning accuracy and repeatability of assembly and reduces assembly deviation.

[0039] Multiple positioning teeth 5 are arranged at intervals along the direction of the connecting strip 4, and the positioning teeth 5 connect to the concave surface of the connecting strip 4. The positioning teeth 5 form a reinforced structure similar to reinforcing ribs, which effectively improves the overall rigidity of the corner piece 1, prevents it from twisting or collapsing during assembly and use, and ensures the guiding accuracy of the glass slide rail. The positioning teeth 5 are arranged at intervals rather than continuously, which reduces the amount of material used while ensuring structural strength and positioning function, helps to achieve product lightweighting, and reduces manufacturing costs.

[0040] Example 2, as Figures 1 to 5 As shown, the positioning tooth 5 is a sheet-like structural component, and its thickness gradually increases on the side near the bottom surface of the connecting strip 4. Preferably, the length of the positioning tooth 5 is 3mm-4mm. The thickened root of the positioning tooth 5 improves its bending strength and root fracture resistance, while the thinned top saves material and reduces weight. The gradual thickness facilitates insertion and assembly and optimizes stress distribution.

[0041] At least one of the reinforcing plates 6 has an L-shaped structure, and the L-shaped reinforcing plate 6 is connected to the inner wall surface of the second side plate 3. The L-shaped reinforcing plate 6 itself has better rigidity than a simple plate structure, and after being connected to the inner wall surface of the second side plate 3, it forms a three-dimensional support, which significantly enhances the local deformation resistance of the second side plate 3.

[0042] The first side plate 2 has a triangular groove on its surface, and multiple reinforcing plates 6 are provided on the inner wall surface of the first side plate 2 facing the second side plate 3, with the reinforcing plates 6 spaced apart. The triangular groove enables local weight reduction and component avoidance, and the spaced reinforcing plates 6 on the inner wall can specifically improve the structural strength of the first side plate 2 without increasing external complexity, avoiding material redundancy.

[0043] The reinforcing piece 6 is disposed perpendicular to the inner wall surface of the first side plate 2, and the angle between the reinforcing piece 6 and the first side edge of the first side plate 2 is an acute angle. The perpendicular arrangement maximizes the bending resistance of the cross section, and the acute angle with the side edge optimizes the resistance to the force in the glass lifting direction and improves the direction of local stress transmission.

[0044] Multiple reinforcing plates 6 are arranged in parallel to each other, and the positioning teeth 5 are arranged parallel to the reinforcing plates 6. The parallel arrangement ensures that each reinforcing plate 6 is subjected to uniform force and has good consistency in the molding process; the positioning teeth 5 are parallel to the reinforcing plates 6, which facilitates mold demolding in the same direction and reduces manufacturing difficulty and cost.

[0045] The second side of the second side plate 3 is formed by bending its edge inward, and the second side of the second side plate 3 is U-shaped. There is a gap between the second side of the second side plate 3 and the second side of the first side plate 2. The U-shaped bending structure itself has high rigidity, and the gap between it and the second side of the first side plate 2 can be directly used as the accommodating and connecting space of the slide rail 7, simplifying the assembly interface design.

[0046] This application also includes a slide rail component 7, which is a long strip structure with an overall U-shaped cross-section. The slide rail component 7 is installed between the second side of the second side plate 3 and the second side of the first side plate 2. One end face of the slide rail component 7 is mated with the corner connector 1, and the corner connector 1 is located on one side of the slide rail component 7. The slide rail component 7 and the corner connector 1 adopt a modular design with end face mating, which retains their respective functional independence while facilitating separate manufacturing, flexible installation, and subsequent maintenance and replacement.

[0047] An interface 8 is provided at the end of the second side edge of the second side plate 3, and the interface 8 is bent away from the first side plate 2. The bent interface 8 forms a guide and overlapping surface, which facilitates smooth transition assembly, avoids sharp corner interference, and improves local compatibility.

[0048] One side and surface of the interface 8 are both open structures, and the wall thickness of the other side of the interface 8 is 3mm-4mm. The open structure provides assembly clearance and elastic deformation allowance; the 3-4mm wall thickness range ensures structural strength while taking into account a certain degree of flexibility, achieving a balance between lightweight and reliability.

[0049] The rest of the contents of Example 2 are the same as those of Example 1.

[0050] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A sliding glass rail for the A-pillar of a car front door, characterized in that, The device includes a corner connector (1), which includes a first side plate (2), a second side plate (3), and a connecting strip (4). The connecting strip (4) connects the first side edge of the first side plate (2) to the first side edge of the second side plate (3). The cross-section of the connecting strip (4) is U-shaped. Multiple positioning teeth (5) are arranged inside the connecting strip (4). The multiple positioning teeth (5) are arranged sequentially at intervals along the direction of the connecting strip (4). The positioning teeth (5) connect the concave surface of the connecting strip (4).

2. The sliding glass rail for the A-pillar of a car front door according to claim 1, characterized in that, The positioning tooth (5) is a sheet-like structure, and the thickness of the positioning tooth (5) gradually increases on the side near the bottom surface of the connecting strip (4).

3. The sliding glass rail for the A-pillar of a car front door according to claim 2, characterized in that, At least one of the reinforcing plates (6) is L-shaped and the L-shaped reinforcing plate (6) is connected to the inner wall surface of the second side plate (3).

4. The sliding glass rail for the A-pillar of a car front door according to claim 2, characterized in that, The first side plate (2) has a triangular groove on its surface. Multiple reinforcing plates (6) are provided on the inner wall surface of the first side plate (2) facing the second side plate (3). The multiple reinforcing plates (6) are arranged at intervals.

5. The sliding glass rail for the A-pillar of a car front door according to claim 4, characterized in that, The reinforcing piece (6) is arranged perpendicular to the inner wall surface of the first side plate (2), and the included angle between the reinforcing piece (6) and the first side edge of the first side plate (2) is an acute angle.

6. The sliding glass rail for the A-pillar of a car front door according to claim 1, characterized in that, Multiple reinforcing plates (6) are arranged in parallel to each other, and the positioning teeth (5) are arranged in parallel to the reinforcing plates (6).

7. The sliding glass rail for the A-pillar of a car front door according to claim 1, characterized in that, The second side of the second side plate (3) is formed by bending its edge inward. The second side of the second side plate (3) is U-shaped. There is a gap between the second side of the second side plate (3) and the second side of the first side plate (2).

8. A sliding glass rail for the A-pillar of a car front door according to claim 7, characterized in that, It also includes a slide rail component (7), which is a long strip structure. The cross-section of the slide rail component (7) is U-shaped. The slide rail component (7) is installed between the second side of the second side plate (3) and the second side of the first side plate (2). One end face of the slide rail component (7) is connected to the corner piece (1). The corner piece (1) is located on one side of the slide rail component (7).

9. A sliding glass rail for the A-pillar of a car front door according to claim 1, characterized in that, The second side plate (3) has an interface (8) at the end of its second side, which is bent away from the first side plate (2).

10. A sliding glass rail for the A-pillar of a car front door according to claim 9, characterized in that, One side and the surface of the interface (8) are open structures, and the wall thickness of the other side of the interface (8) is 3mm-4mm.

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