A window frame structure on a vehicle door
By welding the positioning bracket to the inner panel of the door, and combining it with elastic clips and sealing strips, the problems of large appearance width, poor visibility and wind noise of the traditional door upper window frame structure are solved, achieving the effects of stability and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGLING MOTORS
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-23
Smart Images

Figure CN224392327U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts technology, specifically to a window frame structure for an automotive door. Background Technology
[0002] Traditional car door upper window frame generally includes upper window frame guide rail, outer door panel, and inner door panel; the inner side of the upper window frame guide rail is spot welded to the inner door panel, and the outer side is spot welded to the outer door panel. At the same time, the inner door panel and the outer door panel are edge-sealed and fastened together to form a closed upper window frame structure.
[0003] The traditional door upper window frame guide rail is connected to the inner and outer door panels using welded joints. This structural method has the following problems:
[0004] ①. The door panel needs to cover the welding edge and weld points between the upper window frame guide rail and the outer door panel. The width of the welding edge is generally more than 9mm, which results in a large appearance of the door panel, affecting the overall appearance quality of the vehicle, and reducing the side visibility, thus reducing the customer experience.
[0005] ②. Welding precision is not easy to guarantee. The welding edge between the upper window frame and the outer panel of the door is prone to twisting and deformation in the spot welding area, which will result in uneven appearance surface after the door is assembled. In severe cases, it will also cause abnormal noise when the door window is raised and lowered and generate wind noise.
[0006] ③. The window frame rails on the car door cover the entire top of the door, resulting in relatively high weight and cost. Utility Model Content
[0007] To address the shortcomings of existing technologies, this utility model provides a new automotive door upper window frame structure. This solves the problem that the traditional structure connects the upper window frame guide rail to the inner and outer panels of the door using welded joints. This requires the door lining groove to cover the welded edges and joints between the upper window frame guide rail and the outer panel, resulting in a large door lining groove that affects the overall vehicle appearance quality, reduces side visibility, and lowers the customer experience.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a car door upper window frame structure, comprising:
[0009] Car door outer panel;
[0010] The top of the inner door panel is fastened to the top of the outer door panel, and a cavity is formed between the bottom of the outer door panel and the bottom of the inner door panel.
[0011] A positioning bracket, which can be optionally mounted on the inner panel of the door, and the positioning bracket is located in a cavity;
[0012] The door groove engages with the opening of the cavity, and the top of the door groove abuts against the positioning bracket;
[0013] The door glass is inserted into the door groove and abuts against the positioning bracket through the door groove.
[0014] Preferably, the bottom of the outer door panel is provided with an outer panel recess, and the bottom of the inner door panel is provided with an inner panel protrusion.
[0015] Preferably, the positioning bracket has welding edges installed at both ends, and the welding edges are fixedly connected to the inner panel of the door by welding. The bottom of the positioning bracket is provided with an extrusion surface, and the top of the door groove is in close contact with the extrusion surface.
[0016] Preferably, the positioning bracket, welding edge, and extrusion surface are configured in a Z-shape.
[0017] Preferably, both sides of the door groove are provided with folded edges, and the folded edges and the door groove form an extrusion groove, and the two extrusion grooves respectively abut against the outer panel recess and the inner panel protrusion.
[0018] Preferably, the inner wall of the extrusion groove is fixedly connected with an elastic retaining strip, and the outer side of the outer plate concave strip and the inner plate protrusion tightly abuts against the elastic retaining strip.
[0019] Preferably, a receiving groove is formed at the bottom of the door groove, the top of the door glass is inserted into the receiving groove, and elastic sealing strips are installed on both inner walls of the receiving groove, and the elastic sealing strips on both sides are tightly fitted to the top sides of the door glass.
[0020] Preferably, the inner top wall of the receiving groove is fixedly connected to an extrusion block, and the top of the door glass abuts against the extrusion block.
[0021] This utility model discloses a structure for the upper window frame of an automobile door, which has the following beneficial effects:
[0022] The car door upper window frame structure, during use, consists of a positioning bracket welded to the inner door panel via welding points. Finally, the outer door panel and the inner door panel are edge-sealed and fastened together. The structure of the positioning bracket overlaps with the door groove to ensure the stability of the door groove during the raising and lowering of the door glass. The bottom of the outer door panel and the bottom of the inner door panel are engaged with the door groove to ensure the assemblability of the door groove, reduce welding points, and avoid unevenness of the door groove surface due to twisting or deformation of the welding surface. This reduces the generation of wind noise in the door, saves about 80 seconds of manufacturing and welding time, reduces parts costs by about 18 yuan, and optimizes the overall vehicle weight by about 1.1 kg. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 This is a schematic diagram of part of the structure of this utility model;
[0026] Figure 3 This is a structural schematic diagram of the outer door panel, inner door panel, and positioning bracket of this utility model.
[0027] Figure 4 This is a schematic diagram of the structure of the door groove of this utility model.
[0028] In the diagram: 1. Outer door panel; 11. Outer panel recessed strip; 2. Inner door panel; 21. Inner panel protrusion; 3. Positioning bracket; 31. Welded edge; 32. Extruded surface; 4. Door groove; 41. Folded edge; 42. Extruded groove; 43. Elastic retaining strip; 44. Receiving groove; 45. Elastic sealing strip; 46. Extruded block; 5. Door glass. Detailed Implementation
[0029] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0030] This utility model discloses a structure for the upper window frame of an automobile door.
[0031] According to the appendix Figure 1-4 As shown, it includes:
[0032] Car door outer panel 1;
[0033] The top of the inner door panel 2 is fastened to the top of the outer door panel 1, and a cavity is formed between the bottom of the outer door panel 1 and the bottom of the inner door panel 2.
[0034] The positioning bracket 3 can be optionally installed on the inner panel 2 of the door, and the positioning bracket 3 is located in the cavity;
[0035] The door groove 4 is engaged with the opening of the cavity, and the top of the door groove 4 abuts against the positioning bracket 3;
[0036] The door glass 5 is inserted into the door groove 4 and abuts against the positioning bracket 3 through the door groove 4.
[0037] In use, the positioning bracket 3 is welded to the inner door panel 2 by welding points. Finally, the outer door panel 1 and the inner door panel 2 are edge-sealed and fastened. The structure of the positioning bracket 3 overlaps with the door groove 4 to ensure the stability of the door groove 4 during the lifting and lowering of the door glass 5. The bottom of the outer door panel 1 and the bottom of the inner door panel 2 are engaged with the door groove 4 to ensure the assemblability of the door groove 4, reduce welding points, avoid uneven appearance of the door groove 4 due to twisting or deformation of the welding surface, reduce door wind noise, reduce parts costs and optimize the overall vehicle weight.
[0038] Furthermore, the bottom of the outer door panel 1 is provided with an outer panel recess 11, and the bottom of the inner door panel 2 is provided with an inner panel protrusion 21.
[0039] Specifically disclosed, the positioning bracket 3 has welding edges 31 installed at both ends, and the welding edges 31 are fixedly connected to the inner panel 2 of the door by welding. The bottom of the positioning bracket 3 is provided with an extrusion surface 32, and the top of the door groove 4 is tightly abutted against the extrusion surface 32.
[0040] The welding edge 31 facilitates the connection between the positioning bracket 3 and the inner panel 2 of the door. The top of the door groove 4 is tightly abutted against the extrusion surface 32, thereby providing support for the door glass 5 when it is raised.
[0041] Furthermore, the positioning bracket 3, welding edge 31, and extrusion surface 32 are configured in a Z-shape.
[0042] Specifically disclosed, both sides of the door groove 4 are provided with folded edges 41, and the folded edges 41 and the door groove 4 form a pressing groove 42, and the two pressing grooves 42 are respectively tightly abutted against the outer panel recess 11 and the inner panel protrusion 21.
[0043] Furthermore, an elastic retaining strip 43 is fixedly connected to the inner wall of the extrusion groove 42, and the outer sides of the outer plate concave strip 11 and the inner plate protrusion 21 are tightly abutted against the elastic retaining strip 43.
[0044] By utilizing the folded edge 41, a compression groove 42 is formed between the folded edge 41 and the door groove 4. The elastic retaining strip 43 on the inner wall of the compression groove 42 facilitates the assembly of the door groove 4 and thus plays a positioning role for the door groove 4.
[0045] Specifically, the bottom of the door groove 4 has a receiving groove 44, the top of the door glass 5 is inserted into the receiving groove 44, and elastic sealing strips 45 are installed on both sides of the inner wall of the receiving groove 44. The elastic sealing strips 45 on both sides are tightly fitted to the top sides of the door glass 5.
[0046] By providing elastic sealing strips 45 on both sides of the inner wall of the receiving groove 44, when the door glass 5 rises, the door glass 5 moves upward through the elastic sealing strips 45 on both sides, so that the elastic sealing strips 45 on both sides fit tightly against the top sides of the door glass 5, thereby effectively sealing the receiving groove 44.
[0047] Furthermore, an extrusion block 46 is fixedly connected to the inner top wall of the receiving groove 44, and the top of the door glass 5 abuts against the extrusion block 46.
[0048] In use, the positioning bracket 3 is welded to the inner door panel 2 by welding points. Finally, the outer door panel 1 and the inner door panel 2 are edge-sealed and fastened. The structure of the positioning bracket 3 overlaps with the door groove 4 to ensure the stability of the door groove 4 during the lifting and lowering of the door glass 5. The bottom of the outer door panel 1 and the bottom of the inner door panel 2 are engaged with the door groove 4 to ensure the assemblability of the door groove 4, reduce welding points, avoid uneven appearance of the door groove 4 due to twisting or deformation of the welding surface, reduce door wind noise, reduce parts costs and optimize the overall vehicle weight.
[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A structure for an upper window frame of a car door, characterized in that, Include: The outer plate (1) of the door; The inner plate (2) of the door, the top of the inner plate (2) is edge-bonded with the top of the outer plate (1), and the bottom of the outer plate (1) and the bottom of the inner plate (2) form a cavity; The positioning bracket (3) is selectively arranged on the inner plate (2) of the door, and the positioning bracket (3) is in the cavity; The door cloth groove (4) is clamped at the opening of the cavity, and the top of the door cloth groove (4) abuts against the positioning bracket (3); The door glass (5) is inserted into the inside of the door cloth groove (4) and abuts against the positioning bracket (3) through the door cloth groove (4).
2. The window frame structure for a vehicle door according to claim 1, wherein The bottom of the outer plate (1) is provided with an outer plate recess (11), and the bottom of the inner plate (2) is provided with an inner plate protrusion (21).
3. The window frame structure for a vehicle door according to claim 1, wherein Both ends of the positioning bracket (3) are provided with a welding edge (31), and the welding edge (31) is fixedly connected with the inner plate (2) of the door by welding, and the bottom of the positioning bracket (3) is provided with an extrusion surface (32), and the top of the door cloth groove (4) abuts against the extrusion surface (32).
4. The window frame structure for a vehicle door according to claim 3, wherein The positioning bracket (3), the welding edge (31) and the extrusion surface (32) are arranged in a U-shaped form.
5. The window frame structure for a vehicle door according to claim 2, wherein Both sides of the door cloth groove (4) are provided with a folded edge (41), and the folded edge (41) and the door cloth groove (4) form an extrusion groove (42), and the two extrusion grooves (42) are in close contact with the outer plate recess (11) and the inner plate protrusion (21) respectively.
6. The window frame structure for a vehicle door according to claim 5, wherein The inner wall of the extrusion groove (42) is fixedly connected with an elastic clamping strip (43), and the outer side of the outer plate recess (11) and the inner plate protrusion (21) is in close contact with the elastic clamping strip (43).
7. The window frame structure of claim 1, wherein The bottom of the door cloth groove (4) is provided with a receiving groove (44), the top of the door glass (5) is inserted into the receiving groove (44), and the elastic sealing strips (45) are arranged on the inner walls of both sides of the receiving groove (44), and the elastic sealing strips (45) on both sides are in close contact with the top of the door glass (5).
8. The window frame structure of claim 7, wherein The inner top wall of the receiving groove (44) is fixedly connected with an extrusion block (46), and the top of the door glass (5) abuts against the extrusion block (46).