CN220314683U - Frameless door inner plate structure, frameless door and automobile - Google Patents

Abstract

The utility model relates to the technical field of automobile parts and provides a frameless automobile door inner plate structure, a frameless automobile door and an automobile, wherein the frameless automobile door inner plate structure comprises an inner plate, the inner plate comprises an inner plate body and a first folded edge part, the inner plate body is provided with a first opening in a waist line area, the inner plate body is used for enclosing a mounting groove together with a frameless automobile door outer plate in the waist line area, the mounting groove is used for mounting glass, the inner plate body is bent towards the outer plate direction at the first opening to form the first folded edge part, and the first folded edge part is tightly attached to the glass; the utility model improves the rigidity of the inner plate at the first opening, and further increases the supporting strength of the inner plate to the glass at the first opening, thereby solving the problem of insufficient supporting rigidity of the inner plate at the opening of the waist line area and improving the use reliability of the frameless vehicle door.

Description

Frameless door inner plate structure, frameless door and automobile

Technical Field

The utility model relates to the technical field of automobile parts, in particular to a frameless door inner plate structure, a frameless door and an automobile.

Background

With the continuous improvement of automobile configuration requirements by people, more and more automobile types are equipped with frameless automobile doors. The existing frameless car door mainly comprises an inner plate, wherein the upper part of the inner plate is used for installing glass, two openings are formed in the front end and the rear end of the upper part of the inner plate, and sealing rubber for arranging glass is arranged at the openings.

At present, due to the fact that the frame of the window is absent in the frameless car door, support is absent on the upper portion, the front side and the rear side of the glass of the frameless car door, the load of the inner plate on the opening of the upper portion waist line area is required to be large, and therefore the problem that the support rigidity of the inner plate at the opening of the waist line area is insufficient and even the metal plate is cracked can be caused, and the use reliability of the frameless car door is affected.

Disclosure of Invention

The utility model solves the problem of how to improve the structure of a frameless car door so as to ensure the use reliability of the frameless car door.

In order to solve the problems, the utility model provides a frameless vehicle door inner plate structure, which comprises an inner plate, wherein the inner plate comprises an inner plate body and a first folded edge part, the inner plate body is provided with a first opening at a waistline area, the inner plate body is used for enclosing a mounting groove together with a frameless vehicle door outer plate at the waistline area, the mounting groove is used for mounting glass, the inner plate body is folded towards the direction of the outer plate at the first opening to form the first folded edge part, and the first folded edge part is tightly attached to the glass.

Optionally, the inner plate structure of the frameless car door further comprises an inner waist line reinforcing plate, the inner waist line reinforcing plate comprises a reinforcing plate body and a second flange part, the reinforcing plate body is arranged on the surface of the inner plate body facing the outer plate of the frameless car door, a cavity is formed between the reinforcing plate body and the inner plate body in a surrounding mode, a second opening corresponding to the first opening is formed in the inner plate body, and the reinforcing plate body is bent in the direction of the inner plate body at the second opening to form the second flange part.

Optionally, the inner panel further comprises a third folded edge part, and the part, which is used for being connected with the glass, on the inner panel body is folded towards the direction of the frameless door outer panel so as to form the third folded edge part.

Optionally, the inner belt line reinforcing plate further includes a fourth folded edge portion, the upper end of the reinforcing plate body is folded toward the direction of the inner plate body to form the fourth folded edge portion, and the fourth folded edge portion is tightly attached to the third folded edge portion.

Optionally, a preset interval is formed between the second folded edge portion and the first folded edge portion.

Optionally, the reinforcing plate body is provided with a first mounting hole, the inner plate body is provided with a second mounting hole corresponding to the first mounting hole, and the first mounting hole and the second mounting hole are used for mounting the vehicle door sunshade curtain container through a first connecting piece.

Optionally, the inner plate body is provided with an inner decoration positioning hole and an inner decoration mounting hole, the inner decoration positioning hole is used for being in positioning connection with the inner decoration plate of the frameless car door through the second connecting piece, and the inner decoration mounting hole is used for being in connection with the inner decoration plate of the frameless car door through the third connecting piece.

Optionally, the inner panel further includes a reinforcement structure, the interior trim mounting hole is located below the first opening, and the inner panel body is bent at the edge of the interior trim mounting hole near the first opening to form the reinforcement structure.

Compared with the prior art, the inner plate comprises the inner plate body and the first folded edge part, wherein the waistline region is a region between the upper end of the inner plate body and the lower part of the side window of the frameless door, which is used for penetrating through the front and rear modeling characteristic waistline of the automobile body, the inner plate body and the frameless door outer plate can jointly enclose a mounting groove at the waistline region, glass can be mounted in the mounting groove, meanwhile, a first opening is further formed in the waistline region of the inner plate body, and sealant for sealing the glass can be arranged in the first opening, so that the connection tightness of the inner plate body and the glass can be ensured. In addition, from the inner panel body to the direction of frameless door planking in the opening part bend and extend in order to form first hem portion, can understand that first hem portion and inner panel body are not on a plane, are equivalent to through increasing the thickness of whole inner panel in first opening part and improve the rigidity of inner panel in first opening part, and then increased the internal panel and to the support strength of glass in first opening part to solve the problem that the internal panel supports rigidity inadequately in the opening part of stringcourse region, in order to improve the reliability in use of frameless door.

The utility model also provides a frameless vehicle door, which comprises the frameless vehicle door inner plate structure.

Therefore, the frameless door comprises the frameless door inner plate structure, so the frameless door has at least all technical effects of the frameless door inner plate structure, and the description is omitted herein.

The utility model also provides an automobile, comprising the frameless door or the frameless door inner plate structure.

Therefore, since the automobile comprises the frameless door or the frameless door inner plate structure, the automobile at least has all technical effects of the frameless door or the frameless door inner plate structure, and the description is omitted.

Drawings

FIG. 1 is a schematic view of a partial structure of an inner panel at an opening in an embodiment of the present utility model;

FIG. 2 is a schematic view showing an assembly structure of an inner panel and an inner belt reinforcement panel according to an embodiment of the present utility model;

FIG. 3 is a schematic view showing a partial structure of an inner panel and an inner belt reinforcement panel at an opening in an embodiment of the present utility model;

FIG. 4 is a second schematic view of a partial structure of an inner panel and an inner belt reinforcement panel at an opening in an embodiment of the present utility model;

FIG. 5 is a second schematic view of a partial structure of an inner panel at an opening in an embodiment of the present utility model;

FIG. 6 is a third schematic view of a partial structure of an inner panel at an opening in an embodiment of the present utility model.

Reference numerals illustrate:

1-an inner plate; 11-an inner plate body; 111-a first opening; 112-a second mounting hole; 113-an interior positioning hole; 114-an interior trim mounting hole; 12-a first fold; 13-a third fold; 14-reinforcing structure; 2-an inner belt reinforcement plate; 21-a reinforcing plate body; 211-a first mounting hole; 22-a second flange portion; 23-fourth fold.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, the descriptions of the terms "embodiment," "one embodiment," and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or embodiment is included in at least one embodiment or implementation of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same examples or implementations. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or implementations.

In order to solve the above technical problems, as shown in fig. 1, 2 and 6, an embodiment of the present utility model provides a frameless door inner panel structure, including an inner panel 1, where the inner panel 1 includes an inner panel body 11 and a first folded edge portion 12, the inner panel body 11 is provided with a first opening 111 at a belt line area, the inner panel body 11 is used to enclose a mounting groove with a frameless door outer panel at the belt line area, the mounting groove is used to mount glass, the inner panel body 11 is bent towards the direction of the frameless door outer panel at the first opening 111 to form the first folded edge portion 12, and the first folded edge portion 12 is closely attached to the glass.

The fascia is a molding characteristic line that is located at a lower portion of a side window of an automobile, for example, a frameless door, and penetrates through front and rear sides of the automobile body, the fascia is located at an approximately upper position of a handle of the door, the fascia positions of different automobile types are not unique, the fascia positions are generally determined according to factors such as the molding of the automobile types, the fascia region is a region surrounded by an inner panel body 11 and the fascia, and an installation groove for installing glass can be surrounded by the inner panel body 11 between the fascia region and a frameless door outer panel; the inner part of the first opening 111 is used for filling sealant for setting sealing glass, the inner plate body 11 is bent and extended towards the direction of the frameless door outer plate at the first opening 111 to form a first folded edge part 12, the first folded edge part 12 and the inner plate body 11 can have surface difference in the left-right direction of the automobile, in other words, the surfaces of the first folded edge part 12 and the inner plate body 11 are not in the same plane, the first folded edge part 12 is used for transiting a sealing line of the upper end glass of the waist line of the main body of the inner plate 1 and a sealing surface of the inner plate body 11, which is equivalent to increasing the transverse rigidity of the whole inner plate 1 at the first opening 111 so as to improve the supporting strength of the inner plate 1 to the glass, thereby effectively avoiding the problems of insufficient supporting rigidity of the inner plate 1 at the first opening 111 and even sheet metal cracking; in addition, the first folded edge 12 is formed by bending and transitionally extending from the inner plate body 11 to the frameless door outer plate at the first opening 111, so that the inner plate 1 has a large adjustment allowance at the first opening 111 to meet the installation requirements of different vehicle types, and the design universalization of different vehicle types is realized. The lateral direction refers to the left-right direction of the automobile.

Further, the number of the first openings 111 may be two, so the inner panel body 11 is folded and extended in the direction of the frameless door outer panel at both the first openings 111 to form the first folded edge portions 12, so the number of the first folded edge portions 12 may be matched with the number and positions of the first openings 111.

In this embodiment, the inner panel 1 includes an inner panel body 11 and a first folded edge portion 12, where the belt line area refers to an area between a door panel of an automobile, for example, an upper end of the inner panel body 11 and a side window lower portion of a frameless door, which is used to penetrate through a molding feature belt line of a front and rear of the automobile body, the inner panel body 11 and the frameless door outer panel together define a mounting groove at the belt line area, glass can be mounted in the mounting groove, and meanwhile, the inner panel body 11 is further provided with a first opening 111 at the belt line area, and sealant for sealing the glass can be disposed in the first opening 111, so that the connection tightness between the inner panel body 11 and the glass can be ensured. In addition, the first folded edge portion 12 is formed by bending and extending the inner panel body 11 in the direction of the frameless door outer panel at the first opening 111, and it can be understood that the first folded edge portion 12 is not on the same plane as the inner panel body 11, which is equivalent to increasing the rigidity of the inner panel 1 at the first opening 111 by increasing the thickness of the entire inner panel 1 at the first opening 111, and further increasing the supporting strength of the inner panel 1 at the first opening 111 to the glass, thereby solving the problem of insufficient supporting rigidity of the inner panel 1 at the opening of the belt line region, and improving the reliability of the frameless door.

Optionally, as shown in fig. 2, 3 and 3, the frameless door inner panel structure further includes an inner belt reinforcement panel 2, the inner belt reinforcement panel 2 includes a reinforcement panel body 21 and a second flange portion 22, the reinforcement panel body 21 is disposed on a surface of the inner panel body 11 facing the frameless door outer panel, and a cavity is defined between the reinforcement panel body 21 and the inner panel body 11, a second opening corresponding to the first opening 111 is disposed on the inner panel body 11, and the reinforcement panel body 21 is bent toward the direction of the inner panel body 11 at the second opening to form the second flange portion 22.

In this embodiment, by providing the reinforcing plate body 21 on the surface of the inner plate 1 facing the frameless door outer plate and enclosing a cavity therebetween, which is equivalent to increasing the lateral thickness of the inner plate body 11, the rigidity of the whole frameless door inner plate structure can be further enhanced, wherein, since the glass is disposed in the mounting groove of the inner plate body 11 between the frameless door outer plates in the belt line area, and the reinforcing plate body 21 is disposed on the surface of the inner plate body 11 facing the outer plate, the reinforcing plate body 21 also has a vertical support to the glass, so that the vertical support rigidity to the glass at the position outside the first opening 111 is enhanced together by the reinforcing plate body 21 and the inner plate body 11; the second opening corresponding to the first opening 111 is formed on the inner plate body 11, so that the second opening of the inner plate body 11 also provides an installation position for the sealant of the glass; in addition, the second flange portion 22 is bent and extended from the reinforcing plate body 21 to the direction of the inner plate body 11 at the second opening, so that the second flange portion 22 of the inner belt reinforcing plate 2 is close to the first flange portion 12 of the inner plate 1, which is equivalent to increasing the transverse thickness of the inner plate 1 at the first flange portion 12, so that the vertical supporting rigidity of the whole frameless door inner plate structure to glass at the first opening 111 and the second opening is further enhanced through the second flange portion 22, the problem that the supporting rigidity of the frameless door inner plate structure at the first opening 111 is insufficient and even the sheet metal is cracked is further avoided, and the sealant for sealing the glass is arranged in the first opening 111 and the second opening, so that the glass installation is more stable, the glass shaking is avoided, and the use reliability of the frameless door inner plate structure is ensured. The lateral thickness of the inner panel body 11 refers to the thickness of the inner panel body 11 in the lateral direction of the automobile, for example, on the left and right sides. Moreover, the second hemming portion 22 is formed by bending the reinforcement plate body 21 toward the inner plate body 11 at the second opening, so that the distance between the second hemming portion 22 and the first hemming portion 12 is smaller, and the reinforcement plate is also suitable for reinforcing the inner plate 1 of different vehicle types in the waistline region.

Further, the first flange portion 12 and the second flange portion 22 are not directly welded to each other at the first opening 111, and the inner panel body 11 and the reinforcement panel body 21 are welded to each other at a region other than the first opening 111, whereby the connection tightness between the two can be enhanced.

Optionally, as shown in fig. 5 and 6, the inner panel 1 further includes a third folded portion 13, and a portion of the inner panel body 11 for connecting with the glass is folded toward the outer panel to form the third folded portion 13.

In the present embodiment, the portion where the inner panel body 11 is connected to the glass refers to the upper end portion of the inner panel body 11, and the upper end of the inner panel body 11 is folded and extended in the direction of the frameless door outer panel to form the third folded edge portion 13, wherein the third folded edge portion 13 is parallel to the inner panel body 11, but the third folded edge portion 13 is not on the same plane as the inner panel body 11, which corresponds to an increase in the thickness of the inner panel 1 at the upper end thereof, thereby reinforcing the rigidity of the top end of the inner panel 1 to ensure that the inner panel 1 has sufficient vertical support rigidity to the glass at the upper end thereof.

Optionally, as shown in fig. 3 and 4, the inner belt reinforcement panel 2 further includes a fourth hemming portion 23, the upper end of the reinforcement panel body 21 is bent toward the inner panel body 11 to form the fourth hemming portion 23, and the fourth hemming portion 23 is disposed in close contact with the third hemming portion 13.

In this embodiment, the fourth folded edge 23 is bent from the upper end portion of the reinforcement plate body 21 to the direction of the inner plate body 11 and then extends, so that the fourth folded edge 23 of the inner belt reinforcement plate 2 is close to the third folded edge 13 of the inner plate 1, where the fourth folded edge 23 and the reinforcement plate body 21 are not in a plane, but are closely arranged with the third folded edge 13 through the fourth folded edge 23, which corresponds to increasing the transverse thickness of the inner plate structure of the frameless door at the upper portion of the belt line area, so as to strengthen the rigidity of the inner plate structure of the frameless door at the upper portion of the belt line area, and when the glass is mounted in the mounting groove of the inner plate 1 between the outer plates of the frameless door at the belt line area, the inner belt line reinforcement plate 2 is also located at the lower portion of the glass, and the fourth folded edge 23 and the third folded edge 13 are matched with the outer plates of the frameless door, so that not only the vertical supporting rigidity of the glass can be increased, but also a certain protection can be provided for the lower surface of the glass, so as to prevent the glass from tilting outwards or inwards, and the mounting stability of the glass can be improved. Wherein the upper end of the reinforcing plate body 21 and the upper end of the reinforcing plate body 21 are located.

Further, as shown in fig. 3, the fourth hemming portion 23 is provided with a plurality of bending protrusions arranged at intervals along the longitudinal direction of the reinforcing plate body 21, so that the plurality of bending protrusions arranged at intervals do not influence the welding fixation of the third hemming portion 13 after the third hemming portion is tightly attached to the third hemming portion, and the transverse rigidity of the inner belt reinforcement plate 2 at the upper end portion can be correspondingly increased, so that the supporting rigidity and the supporting effect on glass are further improved. The longitudinal direction refers to the forward or backward direction of the automobile, and the transverse direction refers to the left-right direction of the automobile.

Optionally, as shown in connection with fig. 3, a predetermined interval is provided between the second hemming portion 22 and the first hemming portion 12.

In this embodiment, the interval between the second hemming portion 22 and the first hemming portion 12 is preset, in other words, the inner belt reinforcement 2 and the inner panel 1 are not directly connected at the second opening and at the first opening 111, so that a certain interval is reserved between the two, thereby not only effectively simplifying the assembly process between the inner panel 1 and the inner belt reinforcement 2 and reducing the assembly cost, but also avoiding the installation error of the inner panel 1 and the inner belt reinforcement 2 in the assembly process so as to improve the reliability of the frameless door inner panel structure.

Alternatively, as shown in fig. 4 and 5, the reinforcement plate body 21 is provided with a first mounting hole 211, the inner plate body 11 is provided with a second mounting hole 112 corresponding to the first mounting hole 211, and the first mounting hole 211 and the second mounting hole 112 are used for mounting the door shade receiver through a first connector.

In this embodiment, the first mounting hole 211 and the second mounting hole 112 are disposed opposite to each other, so that the first mounting hole 211 on the reinforcing plate body 21 and the second mounting hole 112 on the inner plate body 11 can be penetrated through by the first connecting piece according to the positioning of different vehicle types and different customer demands, and the door sunshade curtain container is mounted on the inner side of the frameless door, thereby increasing the functions of the vehicle accordingly.

Further, when the first mounting hole 211 is a circular hole, the second mounting hole 112 may be a rectangular hole, and at this time, the first connecting piece may be a square buckle, so when the square buckle passes through the second mounting hole 112 which is a rectangular hole, the square buckle will not rotate in the second mounting hole 112, thereby improving the mounting stability of the vehicle door sunshade curtain container.

Optionally, as shown in fig. 5, an inner trim positioning hole 113 and an inner trim mounting hole 114 are provided on the inner panel body 11, the inner trim positioning hole 113 is used for positioning and connecting the frameless door inner trim panel through a second connecting piece, and the inner trim mounting hole 114 is used for connecting the frameless door inner trim panel through a third connecting piece.

In this embodiment, the inner decoration positioning hole 113 is formed in the inner plate body 11, so that when the frameless door inner decoration plate is assembled and abutted with the inner plate body 11, the positioning structure, such as the positioning column, on the frameless door inner decoration plate can be inserted into the inner decoration positioning hole 113 on the inner plate body 11, thereby realizing accurate positioning and abutted of the frameless door inner decoration plate and the inner plate body 11, and completing the positioning operation before the assembly of the frameless door inner decoration plate and the inner plate body 11. Through offer interior trim mounting hole 114 on inner panel body 11 to after no frame door interior trim board and inner panel body 11 accomplish the location butt joint, wear to locate no frame door interior trim board and inner panel body 11 through the third connecting piece, and then realize with no frame door interior trim board fixed mounting in the inboard of inner panel body 11.

Further, if the frameless door trim has a positioning structure such as a positioning post, the second connecting piece may be a positioning post on the trim, and if the frameless door trim has the same trim positioning hole 113 as the inner panel body 11, the second connecting piece may be a fastener such as a bolt, a rivet structure, or the like.

Optionally, as shown in fig. 5 and 6, the inner panel 1 further includes a reinforcement structure 14, the interior mounting hole 114 is located below the first opening 111, and the inner panel body 11 is bent at an edge of the interior mounting hole 114 adjacent to the first opening 111 to form the reinforcement structure 14.

In this embodiment, since the interior trim mounting hole 114 may be disposed below the first opening 111, the inner panel body 11 is bent near the first opening 111 at the edge of the interior trim mounting hole 114 to form the reinforcing structure 14, so that the edge stiffness of the interior trim mounting hole 114 is effectively reinforced by the reinforcing structure 14, and the vibration of the frameless door interior trim panel during the movement of the automobile is reduced, and meanwhile, the reinforcing structure 14 has an X-direction distance difference from the first opening 111 and the first folded edge 12 of the inner panel body 11, so that the vibration energy of the door is prevented from being transferred to the area of the first opening 111 when the door is closed, thereby increasing the fatigue performance, and further, the vibration amplitude and abnormal sound of the door when the door is closed are correspondingly reduced. The X direction refers to the left-right direction of the automobile.

Further, the third connecting member may be a rivet, a bolt, or the like, and is not particularly limited as long as the connecting member capable of achieving the fixed mounting of the frameless door trim and the inner panel body 11 is applicable to the present technical solution.

The reinforcing structure 14 is connected with the first flanging part 12 on the inner plate body 11, so that the mechanical rigidity of the inner plate body 11 at the first opening 111 can be further increased, and the problems of supporting rigidity and sheet metal cracking of the inner plate body 11 at the first opening 111 can be effectively avoided under the condition of ensuring enough vertical supporting rigidity for glass. The reinforcing structure 14 is bent and extended from the interior mounting hole 114 near the first opening, and the surface of the reinforcing structure 14 is bent in a direction away from the frameless door outer panel and then protrudes from the surface of the interior mounting hole 114.

Another embodiment of the present utility model provides a frameless door comprising a frameless door inner panel structure as described above.

In this embodiment, the frameless door further includes a frameless door outer panel and a frameless door inner trim panel, wherein, with respect to the inner panel body 11 in the frameless door inner panel structure, the frameless door inner trim panel is disposed inside the inner panel body 11, the frameless door outer panel is located outside the inner panel body 11, and the inner belt line reinforcing panel 2 in the frameless door inner panel structure is located between the inner panel 1 and the frameless door outer panel for reinforcing the rigidity of the inner panel 1 at the belt line region. The outer plate and the inner plate 1 of the frameless door can be connected in such a way that, for example, in the edge area of the frameless door, the edge of the outer plate of the frameless door is wrapped outside the edge of the inner plate 1 in a hemming way and is connected in a welding way; at the middle area of the frameless door, the outer plate and the inner plate 1 of the frameless door can be connected and fixed in a manner of filling expansion glue, so that the rigidity of the whole frameless door is correspondingly enhanced.

The frameless door has at least all technical effects of the frameless door inner panel structure and will not be described in detail herein.

Another embodiment of the present utility model provides an automobile including the frameless door as described above or the frameless door inner panel structure as described above.

In this embodiment, the automobile has at least all technical effects of the frameless door or the frameless door inner panel structure, and the description thereof is omitted here.

Although the utility model is disclosed above, the scope of the utility model is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications will fall within the scope of the utility model.

Claims (10)

1. The utility model provides a frameless door inner panel structure, its characterized in that, includes inner panel (1), inner panel (1) include inner panel body (11) and first hem portion (12), inner panel body (11) are equipped with first opening (111) in stringcourse region department, inner panel body (11) are in stringcourse region department is used for enclosing jointly with frameless door planking into the mounting groove, the mounting groove is used for installing glass, inner panel body (11) are in first opening (111) department to the direction of frameless door planking is bent in order to form first hem portion (12), first hem portion (12) are used for with glass hugs closely the setting.

2. The frameless door inner panel structure according to claim 1, further comprising an inner belt reinforcement panel (2), wherein the inner belt reinforcement panel (2) comprises a reinforcement panel body (21) and a second flange portion (22), the reinforcement panel body (21) is disposed on a surface of the inner panel body (11) facing the frameless door outer panel, a cavity is defined between the reinforcement panel body (21) and the inner panel body (11), a second opening corresponding to the first opening (111) is formed in the inner panel body (11), and the reinforcement panel body (21) is bent toward the inner panel body (11) at the second opening to form the second flange portion (22).

3. The frameless door inner panel structure according to claim 2, wherein the inner panel (1) further includes a third hemmed portion (13), and a portion of the inner panel body (11) for connecting with the glass is bent toward the frameless door outer panel to form the third hemmed portion (13).

4. A frameless door inner panel structure according to claim 3, wherein the inner belt reinforcement panel (2) further includes a fourth folded edge portion (23), the upper end of the reinforcement panel body (21) is folded toward the inner panel (1) body to form the fourth folded edge portion (23), and the fourth folded edge portion (23) is disposed in close contact with the third folded edge portion (13).

5. The frameless door inner panel structure according to claim 2, wherein a predetermined interval is provided between the second folded edge portion (22) and the first folded edge portion (12).

6. The frameless door inner panel structure according to claim 2, wherein a first mounting hole (211) is provided on the reinforcement panel body (21), a second mounting hole (112) corresponding to the first mounting hole (211) is provided on the inner panel body (11), and the first mounting hole (211) and the second mounting hole (112) are used for mounting a door sun blind receiver through a first connector.

7. The frameless door inner panel structure according to any one of claims 1 to 6, wherein an interior trim positioning hole (113) and an interior trim mounting hole (114) are provided on the inner panel body (11), the interior trim positioning hole (113) is used for positioning and connecting a frameless door interior trim panel through a second connecting piece, and the interior trim mounting hole (114) is used for connecting the frameless door interior trim panel through a third connecting piece.

8. The frameless door inner panel structure according to claim 7, wherein the inner panel (1) further comprises a reinforcement structure (14), the trim mounting hole (114) is located below the first opening (111), and the inner panel body (11) is bent at an edge of the trim mounting hole (114) adjacent to the first opening (111) to form the reinforcement structure (14).

9. A frameless door comprising the frameless door inner panel structure of any one of claims 1 to 8.

10. An automobile comprising the frameless door of claim 9 or the frameless door inner panel structure of any one of claims 1 to 8.