Car door metal plate, outer decorating part structure of car door metal plate and mounting method of outer decorating part structure

Abstract

The invention relates to a car door metal plate, an outer decorating part structure thereof and a mounting method of the outer decorating part structure. The car door metal plate and car door decorative plate structure comprises the car door metal plate, a car door decorative plate, an upper frame decorative strip and a glass guide groove. The automobile door decorative plate is mounted on the automobile door metal plate and is integrated with a guide rail; a plurality of limiting structures are arranged on the automobile door decorating plate, the upper frame decorating strip is of a C-shaped semi-surrounding structure, PVC and a steel belt are extruded in a composite mode, and an upper frame guide rail metal piece is tightly clamped through lip edges on the upper side and the lower side; the glass guide groove is plugged into the upper frame guide rail and is used for supporting glass; and the vehicle door decorative plate is tightly attached to the lip edge of the glass guide groove. The structure is simple, appearance fitting of exterior trimming parts can be guaranteed, and faults such as large assembly gaps and wind noise are avoided; the novel positioning mode of the car door decorative plate and the metal plate is simple and easy to operate, and part manufacturing precision and part cost can be reduced; the car door decorating plate integrated guide rail can omit a metal plate guide rail, reduces the number, weight and welding of parts, reduces cost, and has high integration degree.

Description

Technical Field

[0001] The invention belongs to the technical field of automobiles, and in particular relates to a novel door sheet metal and an exterior decorative part structure thereof and an installation method thereof. Background Art

[0002] In the prior art, the exterior surface of the door window frame pillars is generally made of high-gloss black door trim panels to enhance the aesthetics of the door side doors. Affected by the manufacturing precision and assembly techniques of the door sheet metal assembly and the door trim panels, the door trim panels and the glass run channel parts are prone to misalignment, resulting in appearance problems such as gaps, and poor lamination can easily cause problems such as wind noise. At the same time, the trim panels are installed by connecting the sheet metal with the buckles on the body. Excessive buckle tension will cause tensile stress marks on the surface of the trim panels, which cannot be eliminated.

[0003] Based on this, it is urgent to design a new door sheet metal and its exterior decorative parts structure to effectively solve the above-mentioned appearance and quality problems. Summary of the invention

[0004] The purpose of the present invention is to provide a vehicle door sheet metal and a vehicle door decorative panel structure and an installation method thereof, so as to solve the problems of misfit and uneven gap between the decorative panel and the guide groove caused by manufacturing and assembly errors.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A door sheet metal and a door decorative plate structure thereof, comprising a door sheet metal, a door decorative plate, an upper frame decorative strip and a glass guide groove;

[0007] The door trim panel is mounted on the door sheet metal, and a guide rail is integrated thereon; a plurality of limit structures are arranged on the door trim panel, which can respectively limit the movement of the door trim panel in the -X, -Y, +Y directions, -Y, +Y directions, +Z directions and -Y directions;

[0008] The upper frame trim is a C-shaped semi-enclosed structure, PVC and steel strip are compositely extruded, and the upper frame guide rail metal parts are tightly clamped by the upper and lower lips;

[0009] The glass guide groove is inserted into the upper frame guide rail to support the glass; the door decorative panel is tightly fitted with the lip of the glass guide groove.

[0010] Furthermore, the lip of the glass run channel is a streamlined arc.

[0011] Furthermore, when the door trim panel is a front door trim panel, a -X direction limiting rib, a +Y direction limiting rib, a -Y direction oblique limiting rib and a +Z direction limiting surface are arranged on the front side thereof.

[0012] Furthermore, the -X direction limiting rib is the bottom rib of the trim hook groove of the door decorative panel, which is in contact with the trim line of the inner door panel to limit the movement of the door decorative panel toward the front of the vehicle; the +Y direction limiting rib is the outer rib of the door decorative panel hook, which is in contact with the outer side surface of the trim of the inner door panel to limit the movement of the door decorative panel toward the inside of the vehicle; the -Y direction oblique limiting rib is in contact with the trim of the inner door panel to limit the movement of the door decorative panel toward the outside of the vehicle; the +Z direction limiting surface is the top side wall surface of the door decorative panel, which is used to resist the glass guide groove cut to limit the upward movement of the door decorative panel.

[0013] Furthermore, the interference between the side wall of the door trim panel and the glass run channel cutout is 0.2 mm.

[0014] Furthermore, a -Y direction trim plug is provided on the back of the door trim panel to limit the Y direction movement of the door trim panel toward the outside of the vehicle.

[0015] Furthermore, the -Y direction trim panel plug is a top plug of the door trim panel, which cooperates with the special-shaped hole of the reinforcement plate, and the cooperation length is 3.7 mm.

[0016] Furthermore, the door trim is provided with three square fixing holes, and three self-tapping screws pass through the square holes and are fastened with embedded nuts embedded in the sheet metal holes of the door inner panel to restrict the movement of the door trim in the - / +Y directions.

[0017] Furthermore, when the door trim panel is a rear door trim panel, a limiting column is provided in the X direction of the door trim panel, and the limiting column cooperates with the oblong hole of the sheet metal to limit the +X direction.

[0018] A method for installing a door sheet metal and a door decorative panel structure thereof, comprising the following steps:

[0019] A. Insert the lower end of the door trim panel into the opening of the door sheet metal sill;

[0020] B. Hook the rear hook edge of the door trim panel onto the trim edge of the door inner panel, and adjust it up and down, left and right, so that the entire hook edge is hooked onto the trim edge of the door inner panel;

[0021] C. Push the door trim panel upwards, make sure the top plug of the door trim panel is inserted into the special-shaped hole of the reinforcement plate, and observe whether the top side wall of the door trim panel is against and fits the cutout of the glass run channel;

[0022] D. Two people work together, one person pushes the door trim panel forward, and the other person passes the self-tapping screws through the square holes of the door trim panel and drives the embedded nuts into them to fix the door trim panel to the door sheet metal, thus completing the door trim panel installation process.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The door sheet metal and its exterior decoration structure of the present invention have a simple structure, including a door sheet metal, a door decorative panel, an upper frame decorative strip and a glass run channel. The structure can effectively solve the appearance matching defects caused by manufacturing and assembly errors, ensure the appearance fit between the exterior decoration parts, and avoid faults such as large assembly gaps and wind noise;

[0025] 2. The present invention provides a new positioning method for door trim panels and sheet metal, which is simple and easy to operate, and can reduce the manufacturing precision of parts and the cost of parts;

[0026] 3. The integrated guide rail of the door trim panel of the present invention can eliminate the sheet metal guide rail, reduce the number of parts, weight and welding, reduce costs, and have a higher degree of integration. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the cooperation between the glass run channel and the door trim panel in the prior art;

[0029] Figure 2 It is a schematic diagram of poor fitting between the glass run channel and the door trim panel in the prior art;

[0030] Figure 3-Figure 4 The figure is a schematic diagram of the positioning of the left front door trim panel;

[0031] Figure 5 It is a schematic diagram of the door sheet metal structure and embedded nuts;

[0032] Figure 6 for Figure 5 A partial enlarged view of

[0033] Figure 7 It is a schematic diagram of the embedded nut;

[0034] Figure 8 This is a front view of the front door trim panel;

[0035] Fig. 9 for Figure 8 AA section view;

[0036] Fig.10 for Figure 8 BB cross-section diagram;

[0037] Fig.11 for Figure 8CC profile of ;

[0038] Fig.12 for Figure 8 DD profile diagram;

[0039] Fig.13 This is a schematic diagram of the back of the front door trim panel;

[0040] Fig.14 for Fig.13 EE profile diagram;

[0041] Fig.15 for Fig.13 FF cross-section diagram;

[0042] Fig.16 Schematic diagram of the rear door trim panel being limited in the X direction by the cooperation of the limiting column and the oblong hole of the sheet metal;

[0043] Fig.17 for Fig.16 HH profile of;

[0044] Fig.18 The figure is a schematic diagram of the installation of the front door trim panel;

[0045] Fig.19 It is a schematic diagram of the structure of the door sheet metal and its exterior decoration parts;

[0046] Fig. 20 for Fig.18 PP cross-section diagram;

[0047] Fig.21 for Fig.18 QQ cross-section diagram. DETAILED DESCRIPTION

[0048] The present invention will be further described below in conjunction with embodiments:

[0049] In the prior art, the door trim is the last assembly fastening part, and the positioning of the door trim plays a key role in the final appearance of the door. To this end, the present invention designs a door sheet metal and an outer trim structure thereof.

[0050] The vehicle door sheet metal and the vehicle door decorative plate structure of the present invention comprise a vehicle door sheet metal, a vehicle door decorative plate, an upper frame decorative strip and a glass guide groove.

[0051] The door trim is mounted on the door sheet metal, and a guide rail is integrated thereon. The door trim is positioned by driving three self-tapping screws through the square fixing holes and into the embedded nuts for fastening. The embedded nuts are pre-installed in the embedded nut holes of the door reinforcement plate.

[0052] The rear side wall of the door trim is provided with a hook edge for limiting the movement of the door trim in the -X, -Y, and +Y directions. The door trim is provided with three square fixing holes for limiting the movement of the door trim in the -Y and +Y directions. The top side wall of the door trim is used to limit the movement of the door trim in the +Z direction. The door trim is provided with a side insert (oblique limiting rib) for limiting the movement of the door trim in the -Y direction. Figure 3-Figure 4 As shown. Generally, parts need to constrain 6 degrees of freedom in space - / +X, - / +Y, and - / +Z. In the present invention, the rear of the vehicle is the +X direction, the right side of the vehicle is the +Y direction, and the top of the vehicle is the +Z direction. The arrangement of the door trim panel of the present invention can effectively overcome the defects of poor fit and uneven gap between the trim panel and the guide groove caused by manufacturing and assembly errors.

[0053] The upper frame trim is a C-shaped semi-enclosed structure, compositely extruded with PVC and steel strips, and tightly clamps the upper frame guide rail metal parts through the upper and lower lips.

[0054] The glass run channel is inserted into the upper frame guide rail to support the glass. The door trim panel fits tightly with the glass run channel lip, and the appearance quality is easy to ensure. The glass run channel lip is a streamlined arc, which reduces high-speed wind noise.

[0055] Specifically, the front door trim panel is as follows: Figure 8 shown.

[0056] -X direction limiting rib: the bottom rib of the trim hook groove of the door trim panel is in contact with the trim line of the door inner panel, limiting the movement of the door trim panel toward the front of the vehicle.

[0057] +Y direction limiting ribs: the outer ribs of the door trim panel hook edge are fitted with the outer side surface of the trimming of the door inner panel to limit the movement of the door trim panel toward the inside of the vehicle.

[0058] -Y-direction inclined limiting rib: fits with the trim of the door inner panel to limit the movement of the door decorative panel toward the outside of the vehicle.

[0059] +Z direction limiting surface: The top side wall of the door trim panel is pressed against the glass guide groove cutout to limit the upward movement of the door trim panel. The interference between the side wall of the door trim panel and the glass guide groove cutout (EPDM rubber) is 0.2mm.

[0060] The back of the front door trim panel is as follows Fig.13 As shown:

[0061] -Y direction trim panel plug: The top plug of the door trim panel matches with the special-shaped hole of the reinforcement panel, with a matching length of 3.7mm, which limits the movement of the door trim panel in the Y direction toward the outside of the vehicle.

[0062] - / +Y direction screw fixing: The door trim panel is fastened with self-tapping screws passing through the square holes of the door trim panel and embedded in the sheet metal holes of the door inner panel to restrict the movement of the door trim panel in the - / +Y directions.

[0063] The +X and -Z directions are released during the installation process: to facilitate disassembly and assembly, release this direction; the door trim panel is used as an adjustment part and is assembled after the glass run channel is installed to the door sheet metal to ensure the appearance matching quality of the door trim panel and the glass run channel.

[0064] The rear door trim is similar to the front door trim, with only a difference in X-axis positioning. The rear door trim is limited in the +X direction by the limit column and the oblong hole in the sheet metal.

[0065] The method for installing a door sheet metal and a door decorative panel structure thereof of the present invention comprises the following steps:

[0066] First, insert the lower end of the door trim panel into the opening of the door sheet metal sill;

[0067] Secondly, hook the rear side of the door trim panel onto the trim of the door inner panel, and adjust it up and down, left and right, so that the entire hook edge is hooked onto the trim of the door inner panel;

[0068] Then, push the door trim panel upwards, make sure the top plug of the door trim panel is inserted into the special-shaped hole of the reinforcement plate, and observe that the top side wall of the door trim panel is against and fits the guide groove cut of the glass guide groove;

[0069] Finally, two people cooperate, one person pushes the door trim panel forward, and the other person passes the self-tapping screws through the square holes of the door trim panel and drives in the embedded nuts to fix the door trim panel to the door sheet metal, thus completing the door trim panel installation process.

[0070] Example 1

[0071] A vehicle door sheet metal and a vehicle door decorative plate structure thereof, comprising a vehicle door sheet metal, a vehicle door decorative plate, an upper frame decorative strip and a glass guide groove.

[0072] In this embodiment, the door trim is a front door trim, which is installed on the door sheet metal and has an integrated guide rail. The upper frame trim is a C-shaped semi-enclosed structure, PVC and steel strip are extruded together, and the upper frame guide rail metal parts are tightly clamped through the upper and lower lips. The glass run groove is inserted into the upper frame guide rail to support the glass. The lip of the glass run groove is a streamlined arc, and the door trim is tightly fitted with the lip of the glass run groove.

[0073] The front side of the door decorative panel is provided with -X direction limiting ribs, +Y direction limiting ribs, -Y direction oblique limiting ribs and +Z direction limiting surface.

[0074] The -X direction limiting rib is the bottom rib of the trim hook groove of the door decorative panel, which fits with the trim line of the door inner panel to limit the movement of the door decorative panel toward the front of the vehicle.

[0075] The +Y direction limiting rib is an outer rib of the door trim panel hook edge, which fits with the outer side surface of the trimming of the door inner panel to limit the movement of the door trim panel toward the inside of the vehicle.

[0076] The -Y direction oblique limiting rib is fitted with the trimming of the inner door panel to limit the movement of the door decorative panel toward the outside of the vehicle.

[0077] The +Z direction limiting surface is the top side wall surface of the door trim panel, which is used to resist the glass run groove cutout and limit the upward movement of the door trim panel. The interference between the side wall of the door trim panel and the glass run groove cutout (EPDM rubber) is 0.2 mm.

[0078] The back of the door trim is provided with a -Y direction trim plug, which is a plug at the top of the door trim, and matches with the special-shaped hole of the reinforcement plate, with a matching length of 3.7 mm, to limit the Y direction movement of the door trim toward the outside of the vehicle.

[0079] The door trim is provided with three square fixing holes, and three self-tapping screws pass through the square holes and are fastened with embedded nuts embedded in the sheet metal holes of the door inner panel to restrict the movement of the door trim in the - / +Y directions.

[0080] A method for installing a door sheet metal and a door decorative panel structure thereof, comprising the following steps:

[0081] First, insert the lower end of the door trim panel into the opening of the door sheet metal sill;

[0082] Secondly, hook the rear side of the door trim panel onto the trim of the door inner panel, and adjust it up and down, left and right, so that the entire hook edge is hooked onto the trim of the door inner panel;

[0083] Then, push the door trim panel upwards, make sure the top plug of the door trim panel is inserted into the special-shaped hole of the reinforcement plate, and observe that the top side wall of the door trim panel is against and fits the guide groove cut of the glass guide groove;

[0084] Finally, two people cooperate, one person pushes the door trim panel forward, and the other person passes the self-tapping screws through the square holes of the door trim panel and drives in the embedded nuts to fix the door trim panel to the door sheet metal, thus completing the door trim panel installation process.

[0085] Example 2

[0086] A vehicle door sheet metal and a vehicle door decorative plate structure thereof, comprising a vehicle door sheet metal, a vehicle door decorative plate, an upper frame decorative strip and a glass guide groove.

[0087] In this embodiment, the door trim is a rear door trim, which is installed on the door sheet metal and has an integrated guide rail. The upper frame trim is a C-shaped semi-enclosed structure, PVC and steel strip are compositely extruded, and the upper frame guide rail metal parts are tightly clamped through the upper and lower lips. The glass run groove is inserted into the upper frame guide rail to support the glass. The glass run groove lip is a streamlined arc, and the door trim is tightly fitted with the glass run groove lip.

[0088] The front side of the door decorative panel is provided with -X direction limiting ribs, +Y direction limiting ribs, -Y direction oblique limiting ribs and +Z direction limiting surface.

[0089] The -X direction limiting rib is the bottom rib of the trim hook groove of the door decorative panel, which fits with the trim line of the door inner panel to limit the movement of the door decorative panel toward the front of the vehicle.

[0090] The +Y direction limiting rib is an outer rib of the door trim panel hook edge, which fits with the outer side surface of the trimming of the door inner panel to limit the movement of the door trim panel toward the inside of the vehicle.

[0091] The -Y direction oblique limiting rib is fitted with the trimming of the inner door panel to limit the movement of the door decorative panel toward the outside of the vehicle.

[0092] The +Z direction limiting surface is the top side wall surface of the door trim panel, which is used to resist the glass run groove cutout and limit the upward movement of the door trim panel. The interference between the side wall of the door trim panel and the glass run groove cutout (EPDM rubber) is 0.2 mm.

[0093] The back of the door trim is provided with a -Y direction trim plug, which is a plug at the top of the door trim, and matches with the special-shaped hole of the reinforcement plate, with a matching length of 3.7 mm, to limit the Y direction movement of the door trim toward the outside of the vehicle.

[0094] The door trim is provided with three square fixing holes, and three self-tapping screws pass through the square holes and are fastened with embedded nuts embedded in the sheet metal holes of the door inner panel to restrict the movement of the door trim in the - / +Y directions.

[0095] The door trim panel is also provided with a limit column in the X direction, and the limit column cooperates with the oblong hole of the sheet metal to limit the +X direction.

[0096] A method for installing a door sheet metal and a door decorative panel structure thereof, comprising the following steps:

[0097] First, insert the lower end of the door trim panel into the opening of the door sheet metal sill;

[0098] Secondly, hook the rear side of the door trim panel onto the trim of the door inner panel, and adjust it up and down, left and right, so that the entire hook edge is hooked onto the trim of the door inner panel;

[0099] Then, push the door trim panel upwards, make sure the top plug of the door trim panel is inserted into the special-shaped hole of the reinforcement plate, and observe that the top side wall of the door trim panel is against and fits the guide groove cut of the glass guide groove;

[0100] Finally, two people cooperate, one person pushes the door trim panel forward, and the other person passes the self-tapping screws through the square holes of the door trim panel and drives in the embedded nuts to fix the door trim panel to the door sheet metal, thus completing the door trim panel installation process.

[0101] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A door sheet metal and a door decorative panel structure thereof, characterized in that: Including door sheet metal, door trim, upper frame molding and glass run channel; The door trim panel is mounted on the door sheet metal, and a guide rail is integrated thereon; a plurality of limit structures are arranged on the door trim panel, which can respectively limit the movement of the door trim panel in the -X, -Y, +Y directions, -Y, +Y directions, +Z directions and -Y directions; The upper frame trim is a C-shaped semi-enclosed structure, PVC and steel strip are compositely extruded, and the upper frame guide rail metal parts are tightly clamped by the upper and lower lips; The glass guide groove is inserted into the upper frame guide rail to support the glass; the door decorative panel is tightly fitted with the lip of the glass guide groove.

2. A door sheet metal and door trim structure according to claim 1, characterized in that: The lip edge of the glass run channel is a streamlined arc.

3. The door sheet metal and door trim structure thereof according to claim 1, characterized in that: When the door trim panel is a front door trim panel, a -X direction limiting rib, a +Y direction limiting rib, a -Y direction oblique limiting rib and a +Z direction limiting surface are arranged on the front side thereof.

4. A door sheet metal and door trim structure thereof according to claim 3, characterized in that: The -X direction limiting rib is the bottom rib of the trim hook groove of the door decorative panel, which is in contact with the trim line of the inner door panel to limit the movement of the door decorative panel toward the front of the vehicle; the +Y direction limiting rib is the outer rib of the door decorative panel hook, which is in contact with the outer side surface of the trim of the inner door panel to limit the movement of the door decorative panel toward the inside of the vehicle; the -Y direction oblique limiting rib is in contact with the trim of the inner door panel to limit the movement of the door decorative panel toward the outside of the vehicle; the +Z direction limiting surface is the top side wall surface of the door decorative panel, which is used to resist the glass guide groove cut to limit the upward movement of the door decorative panel.

5. A door sheet metal and door decorative panel structure according to claim 4, characterized in that: The interference between the side wall of the door trim panel and the glass run channel cutout is 0.2 mm.

6. The door sheet metal and door trim structure thereof according to claim 3, characterized in that: A -Y direction trim panel plug is arranged on the back side of the door trim panel to limit the Y direction movement of the door trim panel toward the outside of the vehicle.

7. A door sheet metal and door trim structure thereof according to claim 6, characterized in that: The -Y direction trim panel plug is a plug at the top of the door trim panel, which cooperates with the special-shaped hole of the reinforcement plate, and the cooperation length is 3.7mm.

8. The door sheet metal and door trim structure thereof according to claim 3, characterized in that: The door trim is provided with three square fixing holes, and three self-tapping screws pass through the square holes and are fastened with embedded nuts embedded in the sheet metal holes of the door inner panel to restrict the movement of the door trim in the - / +Y directions.

9. The door sheet metal and door trim structure thereof according to claim 1, characterized in that: When the door trim panel is a rear door trim panel, a limit column is provided in the X direction of the door trim panel, and the limit column cooperates with the oblong hole of the sheet metal to limit the +X direction.

10. A method for installing a door sheet metal and a door decorative panel structure, characterized in that: The following steps are involved: A. Insert the lower end of the door trim panel into the opening of the door sheet metal sill; B. Hook the rear hook edge of the door trim panel onto the trim edge of the door inner panel, and adjust it up and down, left and right, so that the entire hook edge is hooked onto the trim edge of the door inner panel; C. Push the door trim panel upwards, make sure the top plug of the door trim panel is inserted into the special-shaped hole of the reinforcement plate, and observe whether the top side wall of the door trim panel is against and fits the cutout of the glass run channel; D. Two people work together, one person pushes the door trim panel forward, and the other person passes the self-tapping screws through the square holes of the door trim panel and drives the embedded nuts into them to fix the door trim panel to the door sheet metal, thus completing the door trim panel installation process.

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