A vehicle door hinge mounting plate and vehicle door assembly

Abstract

A vehicle door hinge mounting plate and a vehicle door assembly are provided. The vehicle door hinge mounting plate comprises a base plate comprising a first mounting structure for mounting a vehicle door hinge and a connection point for fixing with an inner panel of a vehicle door; and a support structure fixed to the base plate, comprising a first support plate and a second support plate; wherein the first support plate is arranged to be connected with the inner panel of the vehicle door, and the second support plate is arranged to be connected with a glass guide rail. The vehicle door hinge mounting plate optimizes the overall layout of the fixing points of the vehicle door hinge mounting plate by adding the support structure connected with the inner panel of the vehicle door and the glass guide rail on the basis of being fixed with the inner panel of the vehicle door, thereby improving the stiffness and strength of the entire vehicle door assembly.

Description

Technical Field

[0001] This article relates to, but is not limited to, the field of vehicle technology, and in particular to a door hinge mounting plate and a door assembly. Background Technology

[0002] In the design and development of car doors, the hinge mounting point area is a crucial load-bearing area with significant space requirements. This area involves many aspects, including the rigidity and strength of the mounting point, avoiding the dynamic envelope space of the glass, arranging the glass guide rail support plate, and the feasibility of welding processes. Furthermore, to facilitate the installation of the motor wiring harness during door assembly, numerous mounting holes are made on the inner door panel. This reduces the performance of various mounting points on the inner door panel, requiring considerable time and effort to optimize the rigidity and strength of these mounting points multiple times during the design process.

[0003] It should be noted that the above content falls within the inventor's technical knowledge and does not necessarily constitute prior art. Summary of the Invention

[0004] The purpose of this application is to provide a door hinge mounting plate and a door assembly. This door hinge mounting plate, by adding a support structure that connects to the inner door panel and the glass guide rail, optimizes the overall layout of the mounting points and improves the rigidity and strength of the entire door assembly, based on its existing fixation to the inner door panel.

[0005] The technical solution of this application embodiment is as follows:

[0006] A door hinge mounting plate, comprising:

[0007] The base plate includes a first mounting structure for mounting a door hinge and a connection point for fixing to the inner door panel; and

[0008] The support structure fixed to the substrate includes a first support plate and a second support plate;

[0009] The first support plate is configured to connect with the inner panel of the car door, and the second support plate is configured to connect with the glass guide rail.

[0010] By setting a support structure on the door hinge mounting plate, the connection points between the door hinge mounting plate and the inner door panel, as well as the connection points with the glass guide rail, are increased on the basis of the door hinge mounting plate being fixed to the inner door panel. This changes the layout of the connection points between the door hinge mounting plate and the inner door panel, optimizes the overall stress distribution, and improves the rigidity and strength of the entire door assembly.

[0011] In some exemplary embodiments, the support structure further includes a horizontally arranged connecting plate, the connecting plate comprising:

[0012] The first end is connected to the first support plate;

[0013] The second end, which is disposed opposite to the first end, is connected to the second support plate; and

[0014] A third end, which is connected to the first end and the second end respectively, is connected to the substrate;

[0015] The first support plate, the connecting plate, and the second support plate form a U-shape; or the first support plate, the connecting plate, and the second support plate form a Z-shape.

[0016] By setting the first support plate and the second support plate opposite to each other, the first support plate, the connecting plate and the second support plate form a U-shape, or the first support plate, the connecting plate and the second support plate form a Z-shape, so as to form a roughly triangular force-bearing structure, so that the door hinge mounting plate as a whole has good structural stability.

[0017] In some exemplary embodiments, the substrate and the support structure are configured as an integrally formed structure.

[0018] By making the substrate and support structure a single molded unit, the number of parts in the product is reduced, the assembly sequence is simplified, and it has superior rigidity and strength.

[0019] In some exemplary embodiments, the substrate further includes a second mounting structure for mounting a door limiter; the second mounting structure includes:

[0020] Installation platform;

[0021] The mounting slot provided on the mounting platform; and

[0022] Fixing holes are provided on both sides of the mounting groove.

[0023] By integrating the mounting structure for the door limiter into the door hinge mounting plate, the integration of the door hinge mounting plate is improved, assembly requirements are reduced, and manufacturing costs are lowered.

[0024] In some exemplary embodiments, the substrate includes a first flange, an intermediate plate, and a second flange connected in sequence;

[0025] The first flange and the second flange extend to both sides of the middle plate and are used for welding to the inner panel of the door; the first mounting structure and the supporting structure are both disposed on the middle plate.

[0026] The base plate is configured to include a first flange, a middle plate, and a second flange to optimize the design structure of the door hinge mounting plate. Both the first mounting structure and the support structure are set on the middle plate located in the middle to obtain stable support strength.

[0027] In some exemplary embodiments, the first mounting structure is a through hole; or, the first mounting structure is a nut plate, which is welded to the intermediate plate.

[0028] The installation structure of the car door hinges has been refined.

[0029] In some exemplary embodiments, the substrate includes two of the first mounting structures.

[0030] The mounting structures for both the upper and lower door hinges can be mounted on this base plate to improve the overall integration of the components.

[0031] In some exemplary embodiments, the substrate is provided with positioning holes for positioning with the inner panel of the vehicle door.

[0032] Positioning holes are provided on the base plate for the installation and positioning of the door hinge mounting plate and the inner door panel.

[0033] A door assembly includes an inner door panel and a door hinge mounting plate as described in any of the above embodiments, fixed to the inner door panel.

[0034] In some exemplary embodiments, the inner door panel is provided with mounting holes for mounting speakers, and the first support plate extends above the mounting holes.

[0035] The first support plate extends above the mounting holes for the speaker on the inner door panel to give the door assembly better rigidity and strength.

[0036] After reading and understanding the accompanying diagrams and detailed descriptions, other aspects can be understood. Attached Figure Description

[0037] The accompanying drawings are provided to further understand the technical solutions in this paper and form part of the specification. They are used together with the embodiments of this application to explain the technical solutions in this paper and do not constitute a limitation on the technical solutions in this paper.

[0038] Figure 1 This is a partial structural diagram of an existing door assembly;

[0039] Figure 2 This is an assembly diagram of the door assembly in some illustrative embodiments of this application;

[0040] Figure 3 This application provides schematic diagrams of the partial structure of the door assembly in some illustrative embodiments. Figure 1 ;

[0041] Figure 4 The following is a partial enlarged view of the door assembly in some illustrative embodiments of this application;

[0042] Figure 5 This application provides schematic diagrams of the partial structure of the door assembly in some illustrative embodiments. Figure 2 ;

[0043] Figure 6 This is a schematic diagram of the structure of the door hinge mounting plate in some illustrative embodiments of this application;

[0044] Figure 7a1 A test illustration of the existing door assembly structure. Figure 1 ;

[0045] Figure 7a2 This application provides test illustrations in some illustrative embodiments. Figure 1 ;

[0046] Figure 7b1 A test illustration of the existing door assembly structure. Figure 2 ;

[0047] Figure 7b2 This application provides test illustrations in some illustrative embodiments. Figure 2 ;

[0048] Figure 7c1 A test illustration of the existing door assembly structure. Figure 3 ;

[0049] Figure 7c2 This application provides test illustrations in some illustrative embodiments. Figure 3 .

[0050] Figure label:

[0051] 100'-Door hinge mounting plate, 100-Door hinge mounting plate;

[0052] 1-Baseboard, 1a-First flange, 1b-Intermediate plate, 1c-Second flange, 11-First mounting structure, 12-Mounting platform, 13-Mounting groove, 14-Fixing hole, 15-Positioning hole, 2-Supporting structure, 21-First support plate, 22-Second support plate, 23-Connecting plate, 23a-First end, 23b-Second end, 23c-Third end;

[0053] 200'-Inner door panel, 200-Inner door panel, 201-Mounting hole, 300-Glass rail, 400-Outer door panel, 500-Window frame assembly, 600-Lower hinge mounting plate, 700-Outer panel reinforcement plate, 800-Handle mounting plate, 900-Outer panel support plate, 1000-Anti-collision beam. Detailed Implementation

[0054] The technical solutions described herein will be further illustrated below with reference to the accompanying drawings and specific embodiments. It is understood that the specific embodiments described herein are merely for illustrative purposes and not for limiting the scope of this document.

[0055] like Figure 1 The diagram shows a partial structural schematic of an existing door assembly, with the door hinge mounting plate 100' representing the original structure. Current structural designs for the hinge mounting point area mostly employ a component-based approach to meet the performance requirements of the hinge mounting point and to provide stable support for the glass guide rail 300. While this method places relatively low demands on the design structure and boundaries of the components, it also presents several problems. For example, it results in a large number of parts, low dimensional accuracy in the assembly process, low raw material utilization, leading to higher overall production costs, and dispersed component layout with limited functionality.

[0056] Due to the large number of components and their dispersed arrangement, the addition of mounting holes led to numerous problems, including reduced rigidity, strength, and vibration performance at various mounting points on the 200' (before improvement) of the door inner panel. For example... Figure 1 As shown, for the multiple large holes opened on the inner door panel 200', the structure of the inner door panel 200' needs to be continuously iterated to compensate. This method has limited effect on improving the rigidity, strength and vibration performance of the entire door assembly, and requires a lot of time and effort, resulting in high development costs.

[0057] In one embodiment of this application, as Figures 2 to 6 As shown, a door hinge mounting plate 100 is provided. This door hinge mounting plate 100 improves the integration of components, effectively reduces the number of parts, lowers the boundary requirements of the inner door panel 200, has high adjustment flexibility, and has high rigidity and strength.

[0058] The door hinge mounting plate 100 includes a base plate 1 and a support structure 2 fixed on the base plate 1. A first mounting structure 11 for mounting a door hinge (not shown in the figure) is provided on the base plate 1. The door hinge is an existing structure and will not be described in detail here. A connection point (not shown in the figure) for fixing the door hinge mounting plate 100 to the inner door panel 200 is also provided on the base plate 1. This connection point can be a mounting hole for bolt fixing, a welding rib, or a weld point, etc., to achieve the purpose of fixing the door hinge mounting plate 100 to the inner door panel 200.

[0059] In the embodiments of this application, taking the installation structure for mounting the upper door hinge on the door hinge mounting plate 100 as an example, an installation structure for mounting the lower door hinge can also be provided on the door hinge mounting plate 100, or only an installation structure for mounting the lower door hinge can be provided on the door hinge mounting plate 100. That is to say, in the embodiments of this application, the first installation structure 11 can be used to install the upper door hinge, or it can be used to install the lower door hinge, or two first installation structures 11 can be provided on the door hinge mounting plate 100 to achieve integrated installation of the upper door hinge and the lower door hinge.

[0060] Taking the example of setting a first mounting structure 11 on the door hinge mounting plate 100 for mounting only the upper door hinge, the support structure 2 can be set below the base plate 1 and extend towards the rear of the vehicle. The support structure 2 can be formed by bending one end of the base plate 1 towards the rear of the vehicle.

[0061] The door hinge mounting plate 100 can be configured as a plate, and the material can be selected from DC01 (Q / BQB-408-2014-DC01 (metal material) is cold-rolled low carbon steel plate and strip for cold forming), DC03, etc. The forming process is mainly hot stamping or cold stamping. The base plate 1 and the support structure 2 can be formed separately and then welded together by carbon dioxide shielded welding.

[0062] The support structure 2 includes a first support plate 21 and a second support plate 22 arranged opposite to each other. The first support plate 21 and the second support plate 22 can be arranged in parallel. The first support plate 21 is configured to connect with the inner door panel 200, and the two can be welded together. The second support plate 22 is configured to connect with the glass guide rail 300, and the two can also be welded together. From the overall structure of the door hinge mounting plate 100, the connection points of the base plate 1 and the inner door panel 200, the connection points of the first support plate 21 and the inner door panel 200, and the connection points of the second support plate 22 and the glass guide rail 300 form a triangular support layout within the space enclosed by the inner door panel 200 and the outer door panel 400. This makes the overall stress distribution more reasonable, thereby improving the rigidity and strength of the entire door assembly.

[0063] For the two structures, such as Figure 1 The component structure shown and as follows Figure 3 The integrated structure shown was tested for stiffness at the same coordinate point on the same glass guide rail 300. The comparison results are shown in the table below:

[0064] Table 1

[0065] structure X-axis stiffness (N / mm) Y-axis stiffness (N / mm) Component structure 27.7 48.3 Integrated Structure 113.6 136.9

[0066] As can be seen from Table 1, the support stiffness provided by the door hinge mounting plate 100 to the glass guide rail 300 in this embodiment of the application far exceeds that of the existing structure. Figure 1 The modular structure shown provides support stiffness to the glass guide rail 300, increasing it by 310.1% in the X direction and 183.4% in the Y direction.

[0067] In some exemplary embodiments, such as Figures 3 to 6 As shown, the support structure 2 also includes a horizontally arranged connecting plate 23. The connecting plate 23 can be a rectangular plate or a trapezoidal plate, etc.

[0068] The connecting plate 23 includes a first end 23a and a second end 23b disposed opposite to each other. Both the first end 23a and the second end 23b can be parallel to the horizontal plane (XY plane), and are arranged in parallel. A first support plate 21 is connected to the first end 23a. A second support plate 22 is connected to the second end 23b. The first support plate 21 and the second support plate 22 are arranged in the same direction as the main body panel of the inner door panel 200, and all three can be arranged parallel to each other along the width direction (Y direction) of the vehicle body.

[0069] The connecting plate 23 also includes a third end 23c disposed between the first end 23a and the second end 23b. The third end 23c is connected to the first end 23a and the second end 23b at both ends along the width of the vehicle body, respectively. The connecting plate 23 is connected to the base plate 1 through the third end 23c. The first support plate 21, the second support plate 22, and the connecting plate 23 can be integrally formed, for example, by stamping.

[0070] like Figure 6 As shown, the first support plate 21, the connecting plate 23, and the second support plate 22 can form a U-shape, with both extending downwards (Z-direction). Alternatively, both the first support plate 21 and the second support plate 22 can extend upwards, also forming a U-shape with the connecting plate 23. They can also form a Z-shape, meaning the first support plate 21 and the second support plate 22 extend towards different sides of the connecting plate 23; for example, the first support plate 21 extends upwards, and the second support plate 22 extends downwards. By arranging the first support plate 21 and the second support plate 22 opposite to each other, a roughly triangular load-bearing structure is formed within the installation space created by the inner door panel 200 and the outer door panel 400, resulting in better overall structural stability of the door hinge mounting plate 100.

[0071] In some exemplary embodiments, such as Figure 6 As shown, the base plate 1 and the support structure 2 can be configured as an integrally formed structure, for example, by stamping, to reduce the number of parts in the overall product, simplify the assembly sequence, and make the door hinge mounting plate 100 have better rigidity and strength.

[0072] In some exemplary embodiments, such as Figure 6 As shown, the base plate 1 also includes a second mounting structure for mounting a door limiter (not shown in the figure). This second mounting structure can be arranged above or below the support structure 2. The second mounting structure includes a mounting platform 12 and mounting grooves 13 and fixing holes 14 disposed on the mounting platform 12. The mounting groove 13 can be a square hole as shown in the figure. The fixing holes 14 are round holes, with two fixing holes 14 respectively disposed at the upper and lower ends of the mounting groove 13. The door limiter can be mounted and fixed to the two fixing holes 14 using bolts or screws. The mounting groove 13 serves to create clearance space for the partial structure of the door limiter. By integrating the second mounting structure for mounting the door limiter onto the door hinge mounting plate 100, the integration of the door hinge mounting plate 100 is improved, assembly requirements are reduced, the assembly cycle is shortened, and manufacturing costs are reduced.

[0073] In some exemplary embodiments, such as Figure 6 As shown, the base plate 1 includes a first flange 1a, a middle plate 1b, and a second flange 1c connected in sequence. The base plate 1 can be integrally stamped. The first flange 1a and the second flange 1c extend to both sides of the middle plate 1b, forming a Z-shape in a plane parallel to the ground (XY plane), which can mate with the corresponding surface of the inner door panel 200. The cross-section of the inner door panel 200 in the door hinge mounting area is L-shaped. By setting the cross-section of the base plate 1 to Z-shape, both the first flange 1a and the second flange 1c are welded to the inner door panel 200, providing stable support for the base plate 1, and thus stable support for the door hinge mounting plate 100. The first mounting structure 11 and the support structure 2 are both disposed on the middle plate 1b, providing sufficient support for the door hinge and the glass guide rail 300, resulting in superior overall rigidity and strength.

[0074] In some exemplary embodiments, such as Figure 6 As shown, the first mounting structure 11 can be configured as a through hole. The door hinge can be fixed in this through hole using bolts. Alternatively, as... Figures 3 to 5 As shown, the first mounting structure 11 can be set as a nut plate, and then the nut plate can be welded to the middle plate 1b of the base plate 1 using carbon dioxide shielded welding. By setting the nut plate, the rigidity and strength of the door hinge mounting area can be improved.

[0075] In some exemplary embodiments, such as Figure 6As shown, a positioning hole 15 for mounting and positioning with the inner door panel 200 is also provided on the base plate 1. This door hinge mounting plate 100 integrates the existing separate hinge reinforcement plate, limiter mounting plate, glass guide rail mounting bracket, and inner panel support bracket into one unit. Multiple components are integrated into one piece, reducing the length of the dimensional chain and the cumulative tolerance. The positioning hole 15 can be used for positioning in a unified manner, which effectively ensures the accuracy of the welding process.

[0076] In another embodiment of this application, a door assembly is also provided, such as... Figure 2 As shown. The door assembly includes an inner door panel 200 and a door hinge mounting plate 100 as described in any of the above embodiments, which is fixed to the inner door panel 200. The door assembly typically includes an outer door panel assembly located on the outer side, an inner door panel assembly located on the inner side, and a window frame assembly 500.

[0077] Typically, both the outer and inner door panels are sheet metal parts, with the outer door panel usually painted the same color as the body. The door assembly also includes the door trim assembly, which is usually attached to the inner door panel assembly. The door trim assembly is primarily made of plastic and generally integrates functional components such as speakers, ashtrays, and door handles.

[0078] The general assembly process for a car door assembly is as follows:

[0079] The door window frame of window frame assembly 500 is welded together with the glass guide rail 300 to form window frame assembly 500. Regarding the assembly of the door inner panel assembly:

[0080] The first mounting structure 11 (in the form of a nut plate) is welded to the door hinge mounting plate 100 and the lower hinge mounting plate 600 respectively using carbon dioxide shielded welding to improve the rigidity and strength of the hinge mounting hole area. Alternatively, two first mounting structures 11 can be welded onto the door hinge mounting plate 100.

[0081] The door hinge mounting plate 100, which has been assembled as described above, is welded to the door inner panel 200, outer panel reinforcing plate 700, handle mounting plate 800, etc. Then, the outer panel support plate 900 and the anti-collision beam 1000 are assembled by electric welding to form the door inner panel assembly.

[0082] The final assembly welding involves welding the window frame assembly 500 and the inner door panel assembly. Then, the outer door panel assembly is connected to the inner door panel assembly using an edge-wrapping process, thus completing the assembly of the entire door assembly. Figure 2 As shown.

[0083] In some exemplary embodiments, such as Figure 3As shown, a mounting hole 201 for mounting a speaker (not shown) is provided on the inner door panel 200. A first support plate 21 can extend above this mounting hole 201. Because of the mounting hole 201 for speaker mounting, the rigidity and strength of a local area of ​​the inner door panel 200 are reduced to some extent. Furthermore, during use, the speaker generates a sound cavity, and the sound vibrates during transmission, affecting the vibration performance of the entire door assembly. The first support plate 21 provides a support point for the inner door panel 200, effectively improving the vibration performance of the area where the speaker is mounted on the inner door panel 200, and optimizing the overall rigidity and strength of the door assembly.

[0084] For the two structures, such as Figure 1 The component structure shown and as follows Figure 3 The stiffness of the integrated structure shown was tested at the same coordinate point on the inner door panel 200 for mounting the same speaker. The comparison results are shown in the table below:

[0085] Table 2

[0086] Points Component structure (N / mm) Integrated structure (N / mm) Increase ① 86.96 91.74 5.50％ ② 42.55 51.44 20.89％ ③ 297.62 301.20 1.20％

[0087] As can be seen from Table 2, the support stiffness provided by the inner door panel 200 for the speaker in the embodiments of this application significantly exceeds that of existing structures. Figure 1 The door inner panel 200' shown in the assembly sub-structure provides support rigidity for the speaker. Overall comparison diagram, as shown... Figures 7a1 to 7c2 As shown. Figure 7a1 and Figure 7a2 This is a comparison diagram of hole position ①. Figure 7a1 For the existing component structure, Figure 7a2 It is an integrated structure. Figure 7b1 and Figure 7b2 This is a comparison diagram of hole position ②. Figure 7b1 For the existing component structure, Figure 7b2 It is an integrated structure. Figure 7c1 and Figure 7c2 This is a comparison diagram of hole position ③. Figure 7c1 For the existing component structure, Figure 7c2 It is an integrated structure.

[0088] In the description herein, the terms “upper,” “lower,” “one side,” “the other side,” “one end,” “the other end,” “side,” “opposite,” “four corners,” “periphery,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the structure referred to has a specific orientation, or is constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this document.

[0089] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this document based on the specific circumstances.

[0090] While the embodiments disclosed herein are as described above, the content is merely for the purpose of understanding this document and is not intended to limit it. Any person skilled in the art may make any modifications and changes to the form and details of the implementation without departing from the spirit and scope disclosed herein; however, the scope of patent protection herein shall still be defined by the appended claims.

Claims

1. A door assembly, characterized in that, Includes an inner door panel and a door hinge mounting plate fixed to the inner door panel; the door hinge mounting plate includes: The base plate includes a first mounting structure for mounting a door hinge and a connection point for fixing to the inner door panel; and The support structure fixed to the substrate includes a first support plate and a second support plate; The first support plate is configured to connect with the inner door panel, and the second support plate is configured to connect with the glass guide rail; the inner door panel is provided with mounting holes for mounting speakers, and the first support plate extends above the mounting holes; The supporting structure further includes a horizontally arranged connecting plate, the connecting plate comprising: The first end is connected to the first support plate; The second end, which is disposed opposite to the first end, is connected to the second support plate; and A third end, which is connected to the first end and the second end respectively, is connected to the substrate; The first support plate, the connecting plate, and the second support plate form a U-shape; or the first support plate, the connecting plate, and the second support plate form a Z-shape. The connection point between the base plate and the inner door panel, the connection point between the first support plate and the inner door panel, and the connection point between the second support plate and the glass guide rail form a triangular support layout within the space enclosed by the inner door panel and the outer door panel.

2. The door assembly as described in claim 1, characterized in that, The substrate and the support structure are configured as an integrally formed structure.

3. The door assembly as described in claim 1, characterized in that, The substrate further includes a second mounting structure for mounting a door limiter; the second mounting structure includes: Installation platform; The mounting slot provided on the mounting platform; and Fixing holes are provided on both sides of the mounting groove.

4. The door assembly as described in claim 1, characterized in that, The substrate includes a first flange, an intermediate plate, and a second flange connected in sequence. The first flange and the second flange extend to both sides of the middle plate and are used for welding to the inner panel of the door; the first mounting structure and the supporting structure are both disposed on the middle plate.

5. The door assembly as described in claim 4, characterized in that, The first mounting structure is a through hole; or, the first mounting structure is a nut plate, which is welded to the intermediate plate.

6. The door assembly as described in claim 1, characterized in that, The substrate includes two of the first mounting structures.

7. The door assembly as described in claim 1, characterized in that, The base plate is provided with positioning holes for positioning with the inner panel of the car door.

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