Door plate assembly and manufacturing method thereof, rotating shaft mechanism and electronic equipment

Abstract

The invention discloses a door plate assembly and a manufacturing method thereof, a rotating shaft mechanism and electronic equipment, and is applied to the technical field of terminal equipment. The door plate assembly comprises a door plate comprising a first surface, and the length direction of the door plate is the first direction; the M limiting structures are located in the first surface and / or the door plate at intervals in the first direction; the M + N kinematic pair sliding grooves are located in the first surface at intervals, the positions of the M kinematic pair sliding grooves are opposite to the positions of the M limiting structures, the M kinematic pair sliding grooves are fixed to the corresponding limiting structures, and the N kinematic pair sliding grooves and the door plate are integrally formed; m is a positive integer, and N is a positive integer. Therefore, not only can the strength of the door plate and each kinematic pair sliding chute be improved, but also the position precision of each kinematic pair sliding chute can be improved; the limiting structure is located in the first surface and / or the door plate and does not occupy the thickness space of the door plate, so that the thickness space of the rotating shaft mechanism is not affected, and the electronic equipment is light and thin.

Description

Door panel assembly, manufacturing method thereof, rotating shaft mechanism and electronic equipment

[0001] This application claims priority to the Chinese patent application filed on August 23, 2023, with application number 202311061216.4 and invention name “A door panel assembly, its manufacturing method, rotating shaft mechanism and electronic device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of terminal equipment, and in particular to a door panel assembly and a manufacturing method thereof, a rotating shaft mechanism and an electronic device. Background Art

[0003] With the development of terminal technology, the display screen size of electronic devices such as mobile phones is getting larger and larger. In order to meet the user's portability needs while increasing the display screen size, foldable screen devices are gradually entering the user's usage scenarios.

[0004] The folding screen device includes a hinge mechanism and a flexible screen. The hinge mechanism includes a base and left and right door panels located on either side of the base. The flexible screen covers the left and right door panels (hereinafter collectively referred to as the door panel assembly). The door panel assembly includes a kinematic pair for connecting the door panel assembly to other structural parts. The door panel assembly can bend and flatten with the hinge mechanism, supporting the flexible screen in the flattened state and compressing the flexible screen into a teardrop shape in the folded state.

[0005] The main body and kinematic joints of the door panel assembly are typically molded using one-piece injection molding or carbon fiber and insert injection molding. However, this method can result in relatively weak overall strength of the door panel assembly and the kinematic joints, and it also increases thickness and space. Another common method for connecting the main body and kinematic joints is riveting, but this method requires a large number of parts, makes it difficult to ensure the positional accuracy of the kinematic joints, and also increases thickness and space. Therefore, existing door panel assemblies cannot meet the requirements.

[0006] Summary of the Invention

[0007] The present application provides a door panel assembly and a manufacturing method thereof, a rotating shaft mechanism and an electronic device to solve the problem that the existing door panel assembly cannot meet usage requirements.

[0008] In the first aspect, the present application provides a door panel assembly, comprising: a door panel, comprising a first surface, the longitudinal direction of the door panel being the first direction; M limiting structures, along the first direction, the M limiting structures are spaced apart and located on the first surface and / or inside the door panel; M+N motion secondary slides, along the first direction, the M+N motion secondary slides are spaced apart and located on the first surface, wherein the positions of the M motion secondary slides are opposite to the positions of the M limiting structures, the M motion secondary slides are fixed on the corresponding limiting structures, and the N motion secondary slides are integrally formed with the door panel; M is a positive integer, and N is a positive integer.

[0009] The door panel assembly provided in the embodiment of the present application utilizes M limiting structures on the door panel to fix M motion sub-slots, and the N motion sub-slots are integrally formed with the door panel, which not only improves the strength of the door panel and each motion sub-slot, but also improves the position accuracy of each motion sub-slot; the limiting structure is located on the first surface and / or the interior of the door panel, does not occupy the thickness space of the door panel, and thus does not affect the thickness space of the rotating shaft mechanism, so as to realize the lightweight and thinness of the electronic device and meet the usage requirements.

[0010] In some implementations, the M+N kinematic secondary runners include N high secondary runners and M low secondary runners; along the first direction, the N high secondary runners and the M low secondary runners are spaced apart on the first surface. This allows different high secondary runners and low secondary runners to be used to connect to different structural components in the shaft mechanism.

[0011] In some implementations, the retaining structure includes a first retaining structure; along a first direction, M first retaining structures are spaced apart and positioned on the first surface and / or within the door panel; the M first retaining structures are positioned opposite to the M lower sub-runners, and the M lower sub-runners are injection molded onto the corresponding first retaining structures. In this manner, the lower sub-runners can be injection molded onto the corresponding first retaining structures, thereby improving the bonding strength between the lower sub-runners and the first retaining structures, thereby increasing the strength of the lower sub-runners and the door panel.

[0012] In some implementations, a first retaining structure is located on the first surface; the first retaining structure includes a base and a first fixing slot, the first fixing slot being adjacent to the base in a direction perpendicular to the first direction, the base including at least one through-hole, the axis of the through-hole being aligned with the first direction. The base includes at least two bases arranged in a stepped configuration along the first direction; the bases include through-holes. In this way, plastic can be distributed within the through-holes and on the two stepped bases by means of glue pulling, thereby improving the bonding strength between the lower sub-chute and the first retaining structure. This not only allows for precise positioning and stable fixing of the lower sub-chute, but also improves the strength of the lower sub-chute.

[0013] In some implementations, the lower sub-chute includes: a first lower sub-glue structure, a first fixed seat, and a first chute seat; the first lower sub-glue structure is injection-molded on the base and within at least one through-hole, and the first lower sub-glue structure includes at least one fixed post formed at the at least one through-hole; the first chute seat is injection-molded on the top of the side surface of the first lower sub-glue structure and has a first width along a first direction; the first fixed seat is injection-molded within the first fixed groove and is connected to the first lower sub-glue structure and the first chute seat. In this way, the lower sub-chute is embedded in the interior of the door panel through the first fixed seat, and the first lower sub-glue structure is combined with the base to improve the bonding force between the lower sub-chute and the first limiting structure. This not only improves the stability of the lower sub-chute and the door panel, and the strength of the door panel and the lower sub-chute, but also improves the positioning accuracy of the lower sub-chute.

[0014] In some implementations, the first retaining structure is located within the door panel; the first retaining structure includes a recessed hole and a second fixing slot, the second fixing slot being adjacent to the recessed hole in a direction perpendicular to the first direction. Thus, the plastic is distributed within the recessed hole and the second fixing slot, enhancing the engagement between the lower auxiliary runner and the first retaining structure. This not only allows for precise positioning and stable securing of the lower auxiliary runner, but also improves its strength.

[0015] In some implementations, the lower sub-chute includes: a second lower sub-glue structure, a second fixing seat, and a second chute seat; the second lower sub-glue structure is injection-molded into the recessed hole; the second fixing seat is injection-molded into the second fixing groove; the second chute seat is connected to the second lower sub-glue structure and the second fixing seat, and is injection-molded along the first surface toward a first height in a second direction; wherein the second direction is the thickness of the door panel. In this way, the lower sub-chute is embedded in the interior of the door panel via the second lower sub-glue structure and the second fixing seat, thereby improving the bonding strength between the lower sub-chute and the first limiting structure. This not only improves the stability and strength of the lower sub-chute and the door panel, but also enhances the positioning accuracy of the lower sub-chute.

[0016] In some implementations, the recessed hole includes a first groove and a second groove, the first groove being recessed from the first surface into the interior of the door panel to a first depth, and the second groove being recessed from the second surface of the door panel into the interior to a second depth, the first groove and the second groove being connected by a through hole. The second lower secondary adhesive structure includes a first layer structure, a second layer structure, and a third layer structure stacked in sequence. The first layer structure is injection molded into the first groove, the second layer structure is injection molded into the through hole, and the third layer structure is injection molded into the second groove. Thus, the second lower secondary adhesive structure and the recessed hole form an embedded structure, which not only improves the bonding strength between the lower secondary runner and the first limiting structure, thereby improving the positioning accuracy of the lower secondary runner, but also enhances the strength of the door panel and the lower secondary runner.

[0017] In some implementations, the first retaining structure is located within the door panel; the first retaining structure includes a first shaped hole, a second shaped hole, and a third fixing slot. The first and second shaped holes are arranged in a stepped configuration along a second direction, and the third fixing slot is adjacent to the second shaped hole in a direction perpendicular to the first direction. The second direction is the thickness of the door panel. Thus, the first and second shaped holes form two sets of staggered stepped structures. By applying glue to the two sets of staggered stepped structures, the staggered stepped structures provide complete positioning in different axial directions, improving the positioning accuracy and strength of the lower secondary runner.

[0018] In some implementations, the lower sub-chute includes a third lower sub-glue structure, a third fixing seat, and a third chute seat. The third lower sub-glue structure is continuously injection-molded within the first and second special-shaped holes, and the third lower sub-glue structure has a stepped structure. The third fixing seat is injection-molded within the third fixing groove. The third chute seat is connected to the third lower sub-glue structure and the third fixing seat, and is injection-molded along the first surface toward the second direction to form a second height. The third lower sub-glue structure includes a first special-shaped structure and a second special-shaped structure, and the first and second special-shaped structures have a stepped structure perpendicular to the first direction. Thus, the lower sub-chute is embedded within the door panel via the third lower sub-glue structure and the third fixing seat, thereby enhancing the bonding strength between the lower sub-chute and the first retaining structure. The first retaining structure is step-stitched through the first and second special-shaped holes, resulting in the lower sub-chute having a corresponding stepped glue structure. This not only improves the stability and strength of the lower sub-chute and the door panel, but also enhances the positioning accuracy of the lower sub-chute.

[0019] In some implementations, the door panel and the N high-side auxiliary runners are integrally formed. This allows the door panel assembly to have higher strength while reducing its thickness. This not only improves the strength of the door panel and the high-side auxiliary runners, but also reduces the thickness of the hinge mechanism comprising the door panel assembly.

[0020] In some implementations, the M+N kinematic secondary runners include M high secondary runners and N low secondary runners; along the first direction, the M high secondary runners and the N low secondary runners are spaced apart on the first surface. This allows different high secondary runners and low secondary runners to be used to connect to different structural components in the shaft mechanism.

[0021] In some implementations, the retaining structure includes: a second retaining structure; M second retaining structures are spaced apart along the first direction and recessed from the first surface toward the interior of the door panel; the M second retaining structures are positioned opposite the M high auxiliary runners, and the M second retaining structures are used to secure the M high auxiliary runners. In this manner, the second retaining structures can be used to secure the high auxiliary runners, thereby improving the positioning accuracy and strength of the high auxiliary runners.

[0022] In some implementations, the second retaining structure includes a third groove, and first and second special-shaped grooves located on either side of the third groove in the longitudinal direction. The third groove, the first and second special-shaped grooves are recessed from the first surface toward the interior of the door panel. The longitudinal direction of the third groove is perpendicular to the first direction, while the longitudinal directions of the first and second special-shaped grooves are the same as the first direction. This improves the coupling force between the high auxiliary runner and the second retaining structure, not only accurately positioning and stably securing the high auxiliary runner, but also enhancing its strength.

[0023] In some implementations, the high-side chute includes a first high-side adhesive pull structure, a second high-side adhesive pull structure, a third high-side adhesive pull structure, and a fourth chute seat; the first high-side adhesive pull structure is embedded in the first special-shaped groove, the second high-side adhesive pull structure is embedded in the second special-shaped groove, and the third high-side adhesive pull structure is embedded in the third groove; the first high-side adhesive pull structure has two ends along the first direction that are stepped, and the second high-side adhesive pull structure has two ends along the first direction that are stepped; the fourth chute seat is located on the third high-side adhesive pull structure and is injection-molded at a third height relative to the first surface along a second direction; the second direction is the thickness direction of the door panel. This improves the coupling force between the high-side chute and the second limiting structure, not only accurately positioning and stably securing the high-side chute, but also improving the strength of the high-side chute.

[0024] In some implementations, the first special-shaped groove includes an upper groove, two connecting grooves, and two lower grooves. The upper groove is connected to a connecting groove on either side along the first direction, and each connecting groove is connected to a lower groove, so that the first special-shaped groove forms a structure that steps downward from the first surface to the second surface of the door panel at both ends along the first direction. The first high-sub glue-pulling structure includes an upper structure, two supporting structures, and two lower structures. The upper structure is connected to a supporting structure on either side along the first direction, and each supporting structure is connected to a lower structure, so that the first high-sub glue-pulling structure forms a structure that steps downward from the first surface to the second surface at both ends along the first direction. The upper structure is embedded in the upper groove, the supporting structure is embedded in the connecting groove, and the lower structure is embedded in the lower groove. In this way, the stepped structure of the high-sub slide and the second limiting structure on the door panel are staggered in two layers, thereby achieving complete limiting in the first direction, thereby improving the positioning accuracy and strength of the high-sub slide.

[0025] In some implementations, the door panel and the N lower auxiliary runners are integrally formed. This not only reduces the thickness of the door panel while maintaining higher strength, but also improves the strength of the door panel and the lower auxiliary runners and improves the positional accuracy of the lower auxiliary runners.

[0026] In a second aspect, the present application provides a method for manufacturing a door panel assembly, for manufacturing the door panel assembly provided in the first aspect, the method comprising: providing a first blank and a second blank; machining a door panel, N high sub-runners, and M first stop structures into the first blank; wherein, along a first direction, the N high sub-runners are spaced apart on a first surface of the door panel, and the M first stop structures are spaced apart on the first surface and / or within the door panel; and injection molding the second blank into the M first stop structures to form M low sub-runners, thereby obtaining a door panel assembly; wherein the first direction is the length of the door panel. This method ensures the strength of the door panel and the high sub-runners, and improves the positioning accuracy of the high sub-runners. It also reduces the thickness of the door panel and the wall thickness of the high sub-runners, thereby reducing the thickness space occupied by the door panel assembly within the hinge mechanism, thereby facilitating the thinning and lightweighting of electronic devices including hinge mechanisms. The low sub-runners are insert-molded and cooperate with the first stop structures on the door panel to meet the requirements of the kinematic mating surface accuracy, improving the positioning accuracy and strength of the low sub-runners.

[0027] In a third aspect, the present application provides a method for manufacturing a door panel assembly, for manufacturing the door panel assembly provided in the first aspect, the method comprising: providing a door panel member and M high sub-slots; wherein the door panel member comprises a door panel, N low sub-slots, and M second limiting structures; wherein, along a first direction, the N low sub-slots are spaced apart on the first surface of the door panel, and the M second limiting structures are spaced apart and recessed from the first surface toward the interior of the door panel, and the first direction is the length direction of the door panel; fixing the M high sub-slots on the door panel member, the M high sub-slots corresponding one-to-one with the M second limiting structures and forming an embedded structure, thereby obtaining a door panel assembly. This ensures the strength of the door panel and the low sub-slots and improves the positioning accuracy of the low sub-slots. It also reduces the thickness of the door panel and the wall thickness of the low sub-slots to reduce the thickness space occupied by the door panel assembly in the hinge mechanism, which is conducive to the lightweight and thinning of electronic devices including the hinge mechanism. The high auxiliary slide adopts an embedded structure, which cooperates with the second limiting structure on the door panel to meet the accuracy of the motion matching surface and improve the position accuracy and strength of the high auxiliary slide.

[0028] In a fourth aspect, the present application provides a rotating shaft mechanism, comprising the door panel assembly provided in the first aspect.

[0029] In a fifth aspect, the present application provides an electronic device, comprising the hinge mechanism provided in the fourth aspect.

[0030] It can be understood that the rotating shaft mechanism and electronic equipment provided in the above aspects are all applied to the door panel assembly provided in the first aspect. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the door panel assembly provided in the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0032] FIG1 is a schematic structural diagram of an electronic device 100A provided in an embodiment of the present application;

[0033] FIG2A is a first structural schematic diagram of the screen 30 and the rotating shaft mechanism 40 provided in an embodiment of the present application;

[0034] FIG2B is a second structural schematic diagram of the screen 30 and the rotating shaft mechanism 40 provided in an embodiment of the present application;

[0035] FIG3 is a schematic structural diagram of the AA section in FIG1 ;

[0036] FIG4 is a first structural schematic diagram of a door panel assembly 50 provided in an embodiment of the present application;

[0037] FIG5 is a second structural schematic diagram of a door panel assembly 50 provided in an embodiment of the present application;

[0038] FIG6 is a partial enlarged view of area D in FIG5 ;

[0039] FIG7A is a third structural schematic diagram of the door panel assembly 50 provided in an embodiment of the present application;

[0040] FIG7B is a schematic structural diagram of FIG7A from another perspective;

[0041] FIG8 is a schematic diagram of the structural decomposition of area A in FIG4 ;

[0042] FIG9 is a schematic diagram of glue pulling in area A provided in an embodiment of the present application;

[0043] FIG10 is a schematic structural diagram of the lower auxiliary chute 400 in area A provided in an embodiment of the present application;

[0044] FIG11 is a schematic diagram of the structural decomposition of area B in FIG4 ;

[0045] FIG12 is a schematic diagram of glue pulling in area B provided in an embodiment of the present application;

[0046] FIG13 is a schematic structural diagram of the lower auxiliary chute 400 in the B area provided by an embodiment of the present application;

[0047] FIG14 is a schematic structural diagram of the BB section in FIG11 (c);

[0048] FIG15 is a schematic diagram of the structural decomposition of area C in FIG4 ;

[0049] FIG16 is a schematic diagram of glue pulling in area C provided in an embodiment of the present application;

[0050] FIG17 is a schematic structural diagram of the lower auxiliary chute 400 in the C region provided by an embodiment of the present application;

[0051] FIG18 is a fourth structural diagram of the door panel assembly 50 provided in an embodiment of the present application;

[0052] FIG19 is a fifth structural diagram of the door panel assembly 50 provided in an embodiment of the present application;

[0053] FIG20A is a fourth structural schematic diagram of the door panel assembly 50 provided in an embodiment of the present application;

[0054] FIG20B is a schematic structural diagram of FIG20A from another perspective;

[0055] FIG21 is a schematic diagram of the structural decomposition of region E in FIG20A ;

[0056] FIG22 is a schematic structural diagram of the high auxiliary chute 200 and the first special-shaped groove 502 provided in an embodiment of the present application;

[0057] FIG23 is a first flow chart of a method for manufacturing a door panel assembly according to an embodiment of the present application;

[0058] FIG24 is a first process flow chart of a method for manufacturing a door panel assembly according to an embodiment of the present application;

[0059] FIG25 is a second flow chart of the method for manufacturing a door panel assembly according to an embodiment of the present application;

[0060] FIG26 is a second process flow chart of the method for manufacturing a door panel assembly provided in an embodiment of the present application;

[0061] Figure 27 is a third process flow chart of the manufacturing method of the door panel assembly provided in an embodiment of the present application. DETAILED DESCRIPTION

[0062] The following will clearly describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, other embodiments obtained by ordinary technicians in this field without making any creative work are all within the scope of protection of this application.

[0063] Hereinafter, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0064] In addition, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to changes in the orientation of the components in the drawings.

[0065] The electronic devices described in the embodiments of the present application include but are not limited to mobile phones, foldable screen mobile phones, notebook computers, tablet computers, laptop computers, personal digital assistants or wearable devices, etc. The following description uses the electronic device as a foldable screen mobile phone.

[0066] FIG1 is a schematic structural diagram of an electronic device 100A provided in an embodiment of the present application.

[0067] As shown in Figure 1, electronic device 100A may include a first body 10, a second body 20, a screen 30, and a hinge mechanism 40. The first body 10 and the second body 20 are disposed on either side of the axis of the hinge mechanism 40. The first body 10 and the second body 20 are respectively connected to the hinge mechanism 40, and the hinge mechanism 40 can be rotated to reduce the angle between the first body 10 and the second body 20 until the electronic device is in a folded state, or to increase the angle between the first body 10 and the second body 20 until the electronic device is in an unfolded state.

[0068] The screen 30 covers the first body 10, the second body 20 and the hinge mechanism 40, and is respectively connected to the first body 10 and the second body 20. For example, the screen 30 can be a bendable flexible screen.

[0069] To facilitate the explanation of the positions of various components in the electronic device 100A, the embodiment of the present application exemplarily establishes a three-dimensional coordinate system based on the electronic device 100A, wherein the x-axis direction is the width direction of the electronic device 100A, the y-axis direction is the length direction of the electronic device 100A, and the z-axis direction is the thickness direction of the electronic device 100A.

[0070] Figure 2A is a first schematic diagram of the structure of the screen 30 and the rotating shaft mechanism 40 provided in an embodiment of the present application. Figure 2B is a second schematic diagram of the structure of the screen 30 and the rotating shaft mechanism 40 provided in an embodiment of the present application.

[0071] As shown in FIG2A , when the electronic device 100A is in the unfolded state, the hinge mechanism 40 is also in the unfolded state. In the unfolded state, the first body 10 and the second body 20 are arranged parallel to each other on both sides of the hinge mechanism 40, and the screen 30 is laid flat on the hinge mechanism 40 in the unfolded state.

[0072] As shown in FIG2B , when the electronic device 100A is in the folded state, the hinge mechanism 40 is also in the folded state. In the folded state, the first body 10 and the second body 20 are relatively distributed on both sides of the hinge mechanism 40, and the hinge mechanism 40 presses the screen 30 into a teardrop shape.

[0073] Fig. 3 is a schematic structural diagram of the AA section in Fig. 1. Fig. 3 only shows the structure of the rotating shaft mechanism 40, and the rest of the structures are not shown.

[0074] As shown in Figures 2A, 2B, and 3, the hinge mechanism 40 includes a base 41, a left door panel 42, a right door panel 43, a left connecting block 44, a right connecting block 45, a set of main swing arms 46, and a set of auxiliary swing arms 47. The left door panel 42 and the right door panel 43 are located on either side of the base 41, with the left door panel 42 connected to the left connecting block 44, and the right door panel 43 connected to the right connecting block 45. The left connecting block 44 is rotatably connected to one side of the base 41 via a main swing arm 46 and an auxiliary swing arm 47, while the right connecting block 45 is rotatably connected to the other side of the base 41 via a main swing arm 46 and an auxiliary swing arm 47. A rotating shaft can be provided within the base 41, allowing the main swing arm 46 and the auxiliary swing arm 47 to rotate about the base 41, thereby driving the corresponding connecting blocks to move, which in turn drives the corresponding door panels to rotate. At least one of the main swing arm 46 and the auxiliary swing arm 47 may also be connected to a door panel (hereinafter referred to as the door panel) to improve the rotation accuracy.

[0075] The screen 30 is covered by the left door panel 42 and the right door panel 43, and the door panels are used to support the screen 30. The door panels can be fixedly connected to the screen 30, and the door panels can be folded and unfolded with the hinge mechanism 40. The door panels can also push the screen 30 to fold or unfold, thereby supporting the screen 30 in the unfolded state and pressing the screen 30 into a teardrop shape in the folded state.

[0076] The door panel includes a plurality of kinematic pairs 48 for realizing connections between various structural members. Exemplarily, the kinematic pairs 48 can realize the connection between the door panel and the left connecting block 44, can also realize the connection between the door panel and the main swing arm 46, and can also realize the connection between the door panel and the auxiliary swing arm 47.

[0077] The door panel and kinematic assembly 48 are typically molded using all-in-one (AIO) injection molding or carbon fiber and insert injection molding. However, this molding method can weaken the overall door panel and kinematic assembly and occupy the thickness (z-axis direction) of the hinge mechanism 40, further increasing the thickness of the electronic device occupied by the hinge mechanism 40, making it difficult to achieve a thinner and lighter electronic device.

[0078] The door panel and kinematic joint 48 can typically be connected by riveting. For example, the door panel body is formed using computerized numerical control (CNC) machining of aluminum alloy, the kinematic joint 48 is formed using metal powder injection molding (MIM), and finally the kinematic joint 48 is riveted to the door panel body. However, this method requires a large number of screws, makes it difficult to accurately position the kinematic joint, and also occupies a considerable amount of space. Consequently, existing door panels cannot meet the requirements.

[0079] In order to solve the above technical problems, an embodiment of the present application provides a door panel assembly 50, which has the characteristics of high strength, does not occupy thickness space, and has precise positioning of the kinematic pair to meet usage requirements.

[0080] FIG4 is a first structural schematic diagram of the door panel assembly 50 provided in an embodiment of the present application.

[0081] As shown in FIG. 4 , in some embodiments, the door panel assembly 50 may include: a door panel 100 , M limiting structures, and M+N motion sub-slide grooves, where M is a positive integer and N is a positive integer.

[0082] The door panel 100 includes a first surface 101. Referring to FIG2A , the first surface 101 is the surface away from the screen 30. For example, the length direction of the door panel 100 is defined as a first direction D1, which is the same as the y-axis direction.

[0083] Along the first direction, M limiting structures are spaced apart on the first surface 101 and / or inside the door panel 100. Along the first direction, M+N motion secondary chutes are spaced apart on the first surface 101, wherein the positions of the M motion secondary chutes are opposite to the positions of the M limiting structures, the M motion secondary chutes are fixed to the corresponding limiting structures, and the N motion secondary chutes are integrally formed with the door panel 100.

[0084] In this way, the door panel assembly 50 provided in the embodiment of the present application utilizes M limiting structures on the door panel 100 to fix M motion sub-slots, and the N motion sub-slots are integrally formed with the door panel 100, which can not only improve the strength of the door panel 100 and each motion sub-slot, but also improve the position accuracy of each motion sub-slot; the limiting structure is located on the first surface 101 and / or inside the door panel 100, does not occupy the thickness space of the door panel 100, and thus will not affect the thickness space of the hinge mechanism 40, so as to realize the lightweight and thinness of the electronic device 100A and meet the usage requirements.

[0085] FIG5 is a second structural schematic diagram of the door panel assembly 50 provided in an embodiment of the present application.

[0086] As shown in conjunction with FIG4 and FIG5 , in some embodiments, the M+N motion auxiliary chutes may include M high auxiliary chutes 200 and N low auxiliary chutes 400, or N high auxiliary chutes 200 and M low auxiliary chutes 400. In this way, different high auxiliary chutes 200 and low auxiliary chutes 400 can be used to achieve connection with different structural components in the rotating shaft mechanism 40.

[0087] Taking the example of M+N kinematic auxiliary chutes comprising N high auxiliary chutes 200 and M low auxiliary chutes 400, along the first direction, the N high auxiliary chutes 200 and the M low auxiliary chutes 400 are spaced apart and located on the first surface 101. Exemplarily, the N high auxiliary chutes 200 are adjacent to the M low auxiliary chutes 400, with a certain distance between them. Exemplarily, N can be 6, and M can be 8.

[0088] FIG6 is a partial enlarged view of area D in FIG5 .

[0089] As shown in FIG6 , in some embodiments, the structures of the N high auxiliary chutes 200 can be identical. The high auxiliary chutes 200 can include chutes 201. The N high auxiliary chutes 200 are used to connect to the main swing arm 46 and / or the auxiliary swing arm 47 in the rotating shaft mechanism 40 through the corresponding chutes 201. The M low auxiliary chutes 400 are used to connect to the connecting block.

[0090] Thus, the distance and position of two adjacent high auxiliary chutes 200 are not specifically limited, but can correspond to the position of the main swing arm 46 or the auxiliary swing arm 47 to achieve a precise connection between the door panel 100 and the main swing arm 46 and / or the auxiliary swing arm 47. Similarly, the distance and position of two adjacent low auxiliary chutes 400 are not specifically limited, but can correspond to the position of the connecting block to achieve a precise connection between the door panel 100 and the connecting block.

[0091] In some embodiments, the door panel 100 and the N high auxiliary chutes 200 can be made of metal or polymer materials with a certain degree of high strength, and the door panel 100 and the N high auxiliary chutes 200 can be integrally formed. For example, the door panel 100 and the N high auxiliary chutes 200 are made of metal materials such as stainless steel or titanium alloy. In this way, the use of high-strength materials can reduce the thickness of the door panel 100 and the wall thickness h of the high auxiliary chutes 200. 200 , the wall thickness h of the high auxiliary chute 200 200 It can be reduced to below 0.35mm, reducing the thickness space.

[0092] The lower auxiliary chute 400 may be made of a hard plastic material. For example, the plastic may include polycarbonate (PC) plastic material.

[0093] In the embodiment of the present application, high-precision features such as the door panel 100 shape and the end faces of the high auxiliary chute 200 are CNC-machined on the metal blank to ensure the accurate position of each high auxiliary chute 200 relative to the door panel 100. In addition, the use of high-strength materials can reduce the thickness of the door panel 100 while maintaining higher strength. This not only improves the strength of the door panel 100 and the high auxiliary chute 200, but also reduces the thickness of the hinge mechanism.

[0094] Figure 7A is a third structural diagram of the door panel assembly 50 provided in an embodiment of the present application. Figure 7B is a structural diagram of Figure 7A from another perspective. The structure of the lower auxiliary chute 400 is not shown in Figure 7A.

[0095] As shown in Figures 7A and 7B, in some embodiments, the limiting structure may include a first limiting structure 300. Along the first direction, M first limiting structures 300 are spaced apart and located on the first surface 101 and / or inside the door panel 100. For example, the M first limiting structures 300 may be integrally formed with the door panel 100.

[0096] The M first limiting structures 300 are used to fix the M lower auxiliary chutes 400. The positions of the M first limiting structures 300 correspond to the positions of the M lower auxiliary chutes 400. The lower auxiliary chutes 400 can be made of plastic material. The M lower auxiliary chutes 400 are injection molded on the corresponding first limiting structures 300.

[0097] In this way, the lower auxiliary slide 400 can produce a glue structure on the corresponding first limiting structure 300 through injection molding. The glue structure can improve the bonding strength between the lower auxiliary slide 400 and the first limiting structure 300, thereby improving the strength of the lower auxiliary slide 400 and the door panel 100.

[0098] 4 , 7A and 7B , based on the positions of different lower auxiliary slide grooves 400 on the door panel 100 , due to the thickness limitation of the door panel 100 and the limitation of other structural parts on the door panel 100 , the positions and structures of different first limiting structures 300 are different, and thus the structures of the lower auxiliary slide grooves 400 are also different.

[0099] Exemplarily, the first limiting structure 300 may include three structures, and these three structures are distributed in different positions of the door panel 100, such as area A, area B, and area C. If the number of A areas includes three, then the three first limiting structures 300 in area A adopt the same structure, and correspondingly, the three low auxiliary chutes 400 in area A adopt the same structure. If the number of B areas includes three, then the three first limiting structures 300 in area B adopt the same structure, and correspondingly, the three low auxiliary chutes 400 in area B adopt the same structure. If the number of C areas includes two, then the two first limiting structures 300 in area C adopt the same structure, and correspondingly, the two low auxiliary chutes 400 in area C adopt the same structure.

[0100] The following description takes the structures of a group of first limiting structures 300 and lower auxiliary chute 400 in each area A, B and C as examples.

[0101] Figure 8 is a schematic diagram of the exploded structure of area A in Figure 4 . Figure 8 (a) shows the structure where the first retaining structure 300 is located on the first surface 101 of the door panel 100; Figure 8 (b) shows the structure where the first retaining structure 300 is located on the second surface 102 of the door panel 100. The first surface 101 and the second surface 102 are opposing surfaces. In conjunction with Figure 2A , the second surface 102 is the surface adjacent to the screen 30; and Figure 8 (c) shows the combination of the first retaining structure 300 and the lower auxiliary chute 400.

[0102] As shown in FIG. 8( a ) and FIG. 8 ( b ), in some embodiments, the first limiting structure 300 may be located on the first surface 101 of the door panel 100 .

[0103] The first limiting structure 300 may include a base 311 and a first fixing slot 312. The first fixing slot 312 is adjacent to the base 311 along a direction perpendicular to the first direction (y-axis direction), wherein the direction perpendicular to the first direction is the same as the x-axis direction.

[0104] The base 311 is located on the first surface 101 and protrudes a certain height along the z-axis. The first fixing groove 312 includes an upper groove (not shown) formed by the first surface 101 being recessed into the interior of the door panel 100 to a first depth, and a lower groove (not shown) formed by the second surface 102 being recessed into the interior of the door panel 100 to a second depth. The upper groove and the lower groove are connected. The sum of the first depth and the second depth is less than the thickness of the door panel 100.

[0105] The base 311 may include at least one through hole 313, the axis direction of the through hole 313 being aligned with the first direction, that is, the axis direction of the through hole 313 being aligned with the y-axis direction. The base 311 may include at least two bases 314 arranged in a stepped structure along the first direction, each base 314 including a corresponding through hole 313.

[0106] As shown in FIG8( c ), plastic is injected onto the first limiting structure 300 to form the lower auxiliary chute 400 in the A region.

[0107] In this way, the plastic can be distributed in the through hole 313 and on the two stepped bases 314 by pulling glue, thereby improving the bonding force between the lower auxiliary slide 400 and the first limiting structure 300. It can not only accurately position the lower auxiliary slide 400 and stably fix the lower auxiliary slide 400, but also improve the strength of the lower auxiliary slide 400.

[0108] FIG9 is a schematic diagram of glue pulling in area A provided in an embodiment of the present application.

[0109] As shown in Figures 8(a) and 9, in some embodiments, the two bases 314 are staggered in a stair-like arrangement along the first direction (y-axis), forming two intersecting regions. Using an injection molding process, low-profile plastic is injected into the two intersecting regions and the first fixing groove 312, covering the entire base 311 by stretching the plastic, and filling the through-holes 313 of each base 314 with the plastic.

[0110] In this way, this glue-drawing method uses a stepped structure and a through-hole structure to draw glue. The stepped glue-drawing structure features can limit the glue-drawing in the x / y axis, and the through-hole glue-drawing structure features can limit the glue-drawing in the z axis. The stepped structure can achieve a glue-drawing characteristic of two layers of thickness (low secondary plastic-base 311). Compared with the conventional three-layer glue-drawing characteristic, the embodiment of the present application can save one layer of thickness in the y-axis direction. For example, it can save more than 0.25mm of space in the y-axis, avoiding the problem of insufficient space in the y-axis.

[0111] FIG10 is a schematic diagram of the structure of the lower auxiliary chute 400 in area A provided by an embodiment of the present application. FIG10(a) and FIG10(b) illustrate the structure of the lower auxiliary chute 400 from different perspectives.

[0112] As shown in FIG. 8( a ), FIG. 10( a ) and FIG. 10( b ), in some embodiments, the low auxiliary slide 400 may include: a first low auxiliary glue pulling structure 411 , a first fixing seat 412 and a first slide seat 413 .

[0113] Through injection molding and adhesive bonding, low-side plastic is injected onto the base 311 and into the at least one through-hole 313 to form a first low-side adhesive bonding structure 411. The first low-side adhesive bonding structure 411 includes at least one fixing post 414 formed in the at least one through-hole 313 to improve the strength and positional accuracy of the low-side chute 400.

[0114] The low-side plastic is injected on the top of the side surface of the first low-side rubber structure 411 and injected along the first direction (y-axis direction) with a first width W1 to form a first slide seat 413. The first slide seat 413 is used to connect with the connecting block of the hinge mechanism.

[0115] The lower sub plastic is injection molded into the first fixing groove 312 to form a first fixing seat 412. The first fixing seat 412 is connected to the first lower sub rubber structure 411 and the first slide seat 413 to improve the strength of the lower sub slide 400.

[0116] For example, the upper surface of the first fixing seat 412 can be flush with or lower than the first surface 101, and the lower surface of the first fixing seat 412 can be flush with or lower than the second surface 102. In this way, the lower auxiliary chute 400 can be prevented from affecting other structural components on the door panel 100.

[0117] The lower sub-chute 400 in area A is embedded within the door panel 100 via a first fixing seat 412. The first lower sub-glue structure 411 is combined with the base 311 to enhance the bonding strength between the lower sub-chute 400 and the first retaining structure 300. The first retaining structure 300 utilizes a stepped structure with two staggered layers of plastic, giving the lower sub-chute 400 a stepped, glue-on structure. The through-hole structure also creates a hole-based glue-on structure. This not only enhances the stability and strength of the lower sub-chute 400 and the door panel 100, but also improves the positioning accuracy of the lower sub-chute 400.

[0118] Figure 11 is a schematic diagram of the exploded structure of area B in Figure 4. Figure 11 (a) shows the structure where the first limiting structure 300 is located on the first surface 101 of the door panel 100; Figure 11 (b) shows the structure where the first limiting structure 300 is located on the second surface 102 of the door panel 100; and Figure 11 (c) shows the combination of the first limiting structure 300 and the lower auxiliary chute 400.

[0119] As shown in FIG. 11 ( a ) and FIG. 11 ( b ), in some embodiments, the first limiting structure 300 is located inside the door panel 100 .

[0120] The first retaining structure 300 may include a recessed hole 321 and a second fixing groove 322. The recessed hole 321 is formed by the first surface 101 being recessed toward the interior of the door panel 100, and the second surface 102 being recessed toward the interior of the door panel 100. The second fixing groove 322 is adjacent to the recessed hole 321 in a direction perpendicular to the first direction. The structure of the second fixing groove 322 is identical to that of the first fixing groove 312 and is not further described here.

[0121] As shown in FIG. 11( c ), plastic is injected onto the first limiting structure 300 to form the lower auxiliary chute 400 in the B region.

[0122] In this way, the plastic can be distributed in the recessed hole 321 and the second fixed groove 322 by pulling glue, thereby improving the bonding force between the lower auxiliary slide 400 and the first limiting structure 300. It can not only accurately position the lower auxiliary slide 400 and stably fix the lower auxiliary slide 400, but also improve the strength of the lower auxiliary slide 400.

[0123] FIG12 is a schematic diagram of glue pulling in area B provided in an embodiment of the present application.

[0124] As shown in Figures 11(a) and 12, in some embodiments, region B utilizes a three-layer adhesive structure, distributed along the z-axis: lower plastic, door panel 100, and lower plastic. This three-layer structure allows for adhesive positioning of the lower plastic in the x, y, and z axes, improving the stability, strength, and positioning accuracy of the lower chute 400.

[0125] Figure 13 is a schematic diagram of the structure of the lower auxiliary chute 400 in area B provided by an embodiment of the present application. Figure 13 (a) and Figure 13 (b) can show the structure of the lower auxiliary chute 400 from different perspectives.

[0126] As shown in FIG. 11( a ), FIG. 13( a ), and FIG. 13( b ), in some embodiments, the lower auxiliary chute 400 may include: a second lower auxiliary rubber pulling structure 421 , a second fixing seat 422 , and a second chute seat 423 ;

[0127] Through injection molding and glue drawing, low-side plastic is injected into the recessed hole 321, forming a second low-side glue drawing structure 421. Low-side plastic is injected into the second fixing groove 322, forming a second fixing seat 422. The second low-side glue drawing structure 421 and the second fixing seat 422 are offset in the y-axis direction, forming an offset region between them. Low-side plastic is injected into this offset region and injected along the first surface 101 in the second direction to a first height, forming a second slide seat 423. The second slide seat 423 is used to connect to the connecting block of the hinge mechanism. The first height satisfies the connection requirements between the second slide seat 423 and the connecting block.

[0128] The second slide seat 423 is connected to the second lower adhesive structure 421 and the second fixing seat 422 to improve the strength of the lower slide 400. The second direction is the thickness direction of the door panel 100, that is, the second direction is the z-axis direction.

[0129] The lower secondary chute 400 in area B is embedded within the door panel 100 via a second lower secondary adhesive structure 421 and a second fixing seat 422, enhancing the bonding strength between the lower secondary chute 400 and the first limiting structure 300. The first limiting structure 300 utilizes a three-layer adhesive bond through recessed holes 321, providing the lower secondary chute 400 with a corresponding adhesive bond. This not only enhances the stability and strength of the lower secondary chute 400 and the door panel 100, but also improves the positioning accuracy of the lower secondary chute 400.

[0130] FIG14 is a schematic structural diagram of the BB section in FIG11(c).

[0131] As shown in FIG. 14( a ), in some embodiments, the recessed hole 321 may include a first groove 3211 and a second groove 3212. The first groove 3211 is recessed from the first surface 101 to the interior of the door panel 100 to a first depth h1, and the second groove 3212 is recessed from the second surface 102 of the door panel 100 to the interior to a second depth h2. The first groove 3211 and the second groove 3212 are connected by a through hole 3213. The sum of the first depth h1 and the second depth h2 is less than the thickness h1 of the door panel 100. 100 .

[0132] The width of the through hole 3213 is smaller than the width of the first groove 3211 or the second groove 3212. The widths of the first groove 3211 and the second groove 3212 may be the same or different.

[0133] As shown in (b) of Figure 14, in some embodiments, the second low-sub glue pulling structure 421 may include a first layer structure 4211, a second layer structure 4212 and a third layer structure 4213 stacked in sequence; the second slide seat 423 is injection molded above the first layer structure 4211.

[0134] By injection molding and glue drawing, low-coating plastic is sequentially injected into the first groove 3211, the through hole 3213, and the second groove 3212. In this way, a first layer structure 4211 is formed in the first groove 3211, a second layer structure 4212 is formed in the through hole 3213, and a third layer structure 4213 is formed in the second groove 3212.

[0135] Exemplarily, the upper surface of the first fixing seat 412 may be flush with or lower than the first surface 101 , and the lower surface of the first fixing seat 412 may be flush with or lower than the second surface 102 to prevent the lower auxiliary slide groove 400 from affecting other structural components on the door panel 100 .

[0136] In this way, the second lower auxiliary glue structure 421 and the recessed hole 321 form an embedded structure, which can not only improve the binding force between the lower auxiliary slide 400 and the first limiting structure 300, thereby improving the position accuracy of the lower auxiliary slide 400, but also improve the strength of the door panel 100 and the lower auxiliary slide 400.

[0137] Figure 15 is a schematic diagram of the exploded structure of area C in Figure 4. Figure 15 (a) shows the structure where the first limiting structure 300 is located on the first surface 101 of the door panel 100; Figure 15 (b) shows the structure where the first limiting structure 300 is located on the second surface 102 of the door panel 100; and Figure 15 (c) shows the combination of the first limiting structure 300 and the lower auxiliary chute 400.

[0138] As shown in FIG. 15( a ) and FIG. 15 ( b ), in some embodiments, the first limiting structure 300 is located inside the door panel 100 .

[0139] The first limiting structure 300 includes a first special-shaped hole 331, a second special-shaped hole 332, and a third fixing slot 333. The first special-shaped hole 331 and the second special-shaped hole 332 are staggered along the second direction (z-axis direction) in a stepped structure. The first special-shaped hole 331 can be a stepped structure, and the second special-shaped hole 332 can be a stepped structure.

[0140] The third fixing groove 333 is adjacent to the second shaped hole 332 along a direction perpendicular to the first direction. It should be noted that the structures of the third fixing groove 333, the second fixing groove 322 and the first fixing groove 312 can all adopt the structure of the recessed hole 321, which will not be described in detail here.

[0141] As shown in FIG. 15( c ), plastic is injected onto the first limiting structure 300 to form the lower auxiliary chute 400 in the C region.

[0142] FIG16 is a schematic diagram of glue pulling in area C provided in an embodiment of the present application.

[0143] As shown in (a) of FIG. 15 and FIG. 16 , in some embodiments, the first special-shaped hole 331 and the second special-shaped hole 332 form two sets of staggered stepped structures. Glue is pulled by two sets of staggered stepped structures, and the two sets of staggered stepped structural features can completely limit the glue pulling in the x / y / z directions. This glue pulling method can achieve two layers of flesh thickness for glue pulling (low-sub plastic-door panel). Compared with the common three-layer flesh thickness glue pulling characteristics, the embodiment of the present application can save one layer of flesh thickness in the z-axis direction. For example, more than 0.25 mm of z-direction space can be saved, which can reduce the z-direction space occupied by the door panel 100, and thus reduce the thickness of the door panel assembly 50.

[0144] FIG17 is a schematic diagram of the structure of the lower auxiliary chute 400 in the C region provided by an embodiment of the present application. FIG17(a) and FIG17(b) illustrate the structure of the lower auxiliary chute 400 from different perspectives.

[0145] As shown in FIG. 15( a ), FIG. 17( a ) and FIG. 17( b ), in some embodiments, the lower sub-slide 400 may include: a third lower sub-glue structure 431 , a third fixing seat 432 and a third slide seat 433 .

[0146] By injection molding and glue drawing, low-side plastic is injected into the first special-shaped hole 331 and the second special-shaped hole 332 to form a third low-side glue drawing structure 431. The third low-side glue drawing structure 431 has a stepped structure.

[0147] The lower plastic is injection-molded into the third fixing groove 333 to form a third fixing seat 432. The third lower plastic structure 431 and the third fixing seat 432 are offset in the y-axis direction, forming an offset region between them. The lower plastic is injection-molded in this offset region and then molded along the first surface 101 in the second direction (z-axis) to a second height, forming a third runner seat 433. The third runner seat 433 is used to connect to the connecting block of the hinge mechanism. The second height satisfies the connection requirements between the third runner seat 433 and the connecting block.

[0148] The third slide seat 433 is connected to the third lower auxiliary glue structure 431 and the third fixing seat 432 , which can improve the strength of the lower auxiliary slide 400 .

[0149] In some embodiments, the third low-coupling adhesive structure 431 may include a first special-shaped structure 4311 and a second special-shaped structure 4312. The first special-shaped structure 4311 is formed by low-coupling plastic injection molding in the first special-shaped hole 331, and the second special-shaped structure 4312 is formed by low-coupling plastic injection molding in the second special-shaped hole 332. In this way, the first special-shaped structure 4311 forms a stepped structure along the x-axis, the second special-shaped structure 4312 forms a stepped structure along the x-axis, and a stepped structure along the y-axis is formed between the first special-shaped structure 4311 and the second special-shaped structure 4312.

[0150] The lower secondary chute 400 in region C is embedded within the door panel 100 via a third lower secondary adhesive structure 431 and a third fixing seat 432, enhancing the bonding strength between the lower secondary chute 400 and the first retaining structure 300. The first retaining structure 300 utilizes a stepped adhesive structure through the first and second shaped holes 331 and 332, creating a corresponding stepped adhesive structure for the lower secondary chute 400. This not only enhances the stability and strength of the lower secondary chute 400 and the door panel 100, but also improves the positioning accuracy of the lower secondary chute 400.

[0151] The door panel assembly 50 provided in an embodiment of the present application includes: a door panel 100, N high sub-runners 200, M first limiting structures 300, and M low sub-runners 400. The N high sub-runners 200 and the door panel 100 can be made of high-strength materials and integrally formed. This not only reduces the thickness of the door panel 100 while maintaining higher strength, but also improves the strength of the door panel 100 and the N high sub-runners 200, and improves the positional accuracy of the N high sub-runners 200. The M low sub-runners 400 are injection-molded on the M first limiting structures 300, and based on different first limiting structures 300, the M low sub-runners 400 have different structures of glue structures. The glue structure can improve the bonding strength between the M low sub-runners 400 and the M first limiting structures 300, thereby improving the strength of the M low sub-runners 400 and the door panel 100, and improving the positional accuracy of the M low sub-runners 400.

[0152] Fig. 18 is a fourth structural diagram of the door panel assembly 50 provided in accordance with an embodiment of the present application. Fig. 19 is a fifth structural diagram of the door panel assembly 50 provided in accordance with an embodiment of the present application.

[0153] As shown in Figures 18 and 19, in some embodiments, in the door panel assembly 50 provided in the embodiments of the present application, taking the example of M+N kinematic sub-runners including M high sub-runners 200 and N low sub-runners 400, the M high sub-runners 200 and the N low sub-runners 400 are spaced apart and located on the first surface 101 along a first direction. The M high sub-runners 200 and the door panel 100 may not be integrally formed. The M high sub-runners 200 may be combined with the door panel 100 in the form of metal inserts, and the N low sub-runners 400 may be integrally formed with the door panel 100. For example, N may be 8 and M may be 6.

[0154] Figure 20A is a fourth structural diagram of the door panel assembly 50 provided in an embodiment of the present application. Figure 20B is a structural diagram of Figure 20A from another perspective. The structure of the high auxiliary chute 200 is not shown in Figure 20A.

[0155] As shown in Figures 20A and 20B, in some embodiments, the retaining structure may include a second retaining structure 500. M second retaining structures 500 are spaced apart along the first direction and recessed from the first surface 101 toward the interior of the door panel 100. For example, the M second retaining structures 500 may be integrally formed with the door panel 100.

[0156] The number of the M second limiting structures 500 is the same as the number of the M high auxiliary chutes 200. The positions of the M second limiting structures 500 are opposite to the positions of the M high auxiliary chutes 200. The M second limiting structures 500 are used to fix the M high auxiliary chutes 200 in the form of metal inserts. For example, the high auxiliary chutes 200 can be made of a metal material such as stainless steel or titanium alloy, and the high auxiliary chutes 200 can be pre-formed as metal inserts.

[0157] Figure 21 is a schematic diagram of the exploded structure of region E in Figure 20A . Figure 21 (a) shows the structure where the second limiting structure 500 is located on the first surface 101 of the door panel 100; Figure 21 (b) shows the structure where the second limiting structure 500 is located on the second surface 102 of the door panel 100; and Figure 21 (c) shows the combination of the second limiting structure 500 and the high auxiliary chute 200.

[0158] As shown in FIG. 21( a ) and FIG. 21( b ), in some embodiments, the second limiting structure 500 may include a third groove 501 , and a first special-shaped groove 502 and a second special-shaped groove 503 located on both sides of the third groove 501 in the longitudinal direction.

[0159] The length direction of the third groove 501 is perpendicular to the first direction (y-axis direction), and the length direction of the third groove 501 is the width direction (x-axis direction) of the door panel 100. The length direction of the first special-shaped groove 502 is the same as the first direction, and the length direction of the first special-shaped groove 502 is the length direction of the door panel 100. The length direction of the second special-shaped groove 503 is the same as the first direction, and the length direction of the second special-shaped groove 503 is the length direction of the door panel 100. The first special-shaped groove 502 and the second special-shaped groove 503 can be parallel.

[0160] The third groove 501, the first special-shaped groove 502, and the second special-shaped groove 503 are recessed from the first surface 101 toward the interior of the door panel 100. The third groove 501 may penetrate the first surface 101 and the second surface 102 of the door panel 100, and the first special-shaped groove 502 and the second special-shaped groove 503 may also include portions that penetrate the first surface 101 and the second surface 102.

[0161] As shown in FIG. 21( c ), the second limiting structure 500 is combined with the high auxiliary slide groove 200 to obtain the door panel assembly 50 shown in FIG. 18 and FIG. 19 .

[0162] In this way, the high auxiliary chute 200 can have a rubber structure adapted to the second limiting structure 500 to improve the bonding force between the high auxiliary chute 200 and the second limiting structure 500, which can not only accurately position the high auxiliary chute 200 and stably fix the high auxiliary chute 200, but also improve the strength of the high auxiliary chute 200.

[0163] Figure 22 is a schematic structural diagram of the high auxiliary chute 200 and the first special-shaped groove 502 provided in an embodiment of the present application. Figure 22 (a) is a cross-sectional view of the first special-shaped groove 502 along the y-axis direction.

[0164] As shown in FIG. 21 and FIG. 22 ( a ), in some embodiments, the first special-shaped groove 502 and the second special-shaped groove 503 have the same structure, and the structure of the first special-shaped groove 502 is used as an example for description below.

[0165] The first special-shaped groove 502 may include an upper groove 5021, a connecting groove 5022, and a lower groove 5023. It should be noted that the dotted lines in FIG22(a) are merely illustrative of the regions of the upper groove 5021, the connecting groove 5022, and the lower groove 5023, and do not constitute a limitation on the corresponding structures.

[0166] The upper groove 5021 is recessed from the first surface 101 to the interior of the door panel 100 by a third depth h3, and the lower groove 5023 is recessed from the second surface 102 of the door panel 100 to the interior by a fourth depth h4. The connecting groove 5022 passes through the first surface 101 and the second surface 102, and the upper groove 5021 and the lower groove 5023 are connected through the connecting groove 5022. The sum of the third depth h3 and the fourth depth h4 is equal to the thickness h of the door panel 100. 100 .

[0167] There are two connecting grooves 5022 and two lower grooves 5023. The upper groove 5021 is connected to a connecting groove 5022 on either side along the y-axis. Each connecting groove 5022 is connected to a lower groove 5023. The lower grooves 5023 are spaced farther from the upper groove 5021 along the y-axis relative to the corresponding connecting groove 5022. This allows the first irregularly shaped groove 502 to form a stepped structure extending downward from the first surface 101 to the second surface 102 at both ends along the y-axis.

[0168] As shown in FIG. 21 and FIG. 22 ( b ), in some embodiments, the high auxiliary slide 200 may include a first high auxiliary glue pulling structure 202 , a second high auxiliary glue pulling structure 203 , a third high auxiliary glue pulling structure 204 and a fourth slide seat 205 .

[0169] The length direction of the third high-sub glue pulling structure 204 is the same as the x-axis direction, the first high-sub glue pulling structure 202 and the second high-sub glue pulling structure 203 are respectively located at the two ends of the third high-sub glue pulling structure 204 along the x-axis direction, and the length direction of the first high-sub glue pulling structure 202 and the length direction of the second high-sub glue pulling structure 203 are both the same as the y-axis direction.

[0170] The fourth chute seat 205 is located between the first high-side adhesive pull structure 202 and the second high-side adhesive pull structure 203, and is positioned on the surface of the third high-side adhesive pull structure 204 along the z-axis. The fourth chute seat 205 is molded at a third height along the z-axis relative to the first surface 101. The fourth chute seat 205 may also include a chute 201, which is used to connect to the main swing arm 46 and / or the auxiliary swing arm 47 of the rotating shaft mechanism 40. The third height satisfies the connection requirements between the fourth chute seat 205 and the main swing arm 46 and / or the auxiliary swing arm 47 of the rotating shaft mechanism 40.

[0171] The third high-sub adhesive pull structure 204 is used to be embedded in the third groove 501 , the first high-sub adhesive pull structure 202 is used to be embedded in the first special-shaped groove 502 , and the second high-sub adhesive pull structure 203 is used to be embedded in the second special-shaped groove 503 .

[0172] The first high-sub adhesive pull structure 202 and the second high-sub adhesive pull structure 203 have the same structure. The structure of the first high-sub adhesive pull structure 202 is taken as an example for description.

[0173] The first high-sub glue-drawing structure 202 may include an upper structure 2021, a support structure 2022, and a lower structure 2023. The length of the upper structure 2021 is aligned with the y-axis, the length of the support structure 2022 is aligned with the z-axis, and the length of the lower structure 2023 is aligned with the y-axis. The upper structure 2021 is connected to the lower structure 2023 via the support structure 2022.

[0174] There are two support structures 2022 and two lower structures 2023. The upper structure 2021 is connected to a support structure 2022 on each side along the y-axis. Each support structure 2022 is connected to a lower structure 2023, and the lower structures 2023 are spaced farther from the upper structure 2021 along the y-axis relative to the corresponding support structure 2022. This allows the first high-sub adhesive-drawing structure 202 to form a stepped structure along the y-axis, with both ends of the first high-sub adhesive-drawing structure 202 forming a downward-facing structure from the first surface 101 to the second surface 102.

[0175] When the second limiting structure 500 is coupled to the high-side chute 200, the third high-side adhesive structure 204 is inserted into the third groove 501, the upper structure 2021 of the first high-side adhesive structure 202 is inserted into the upper groove 5021 of the first special-shaped groove 502, the support structure 2022 is inserted into the connecting groove 5022, and the lower structure 2023 is inserted into the lower groove 5023. Similarly, the second high-side adhesive structure 203 is inserted into the second special-shaped groove 503. For example, the outer surface of the upper structure 2021 can be flush with or lower than the first surface 101, and the outer surface of the lower structure 2023 can be flush with or lower than the second surface 102. This prevents the high-side chute 200 from interfering with other structural components on the door panel 100.

[0176] The first high-sub glue pulling structure 202 of the high-sub slide 200 has a stepped structure at both ends along the first direction. In this way, through the two-layer staggered distribution of the stepped structure and the second limiting structure 500 on the door panel 100, complete limiting in the y-axis direction can be achieved to improve the position accuracy and strength of the high-sub slide 200.

[0177] The door panel assembly 50 provided in the embodiment of the present application includes: a door panel 100, M high auxiliary runners 200, N low auxiliary runners 400, and M second limiting structures 500. The N low auxiliary runners 400 and the door panel 100 can be made of materials with a certain high strength, such as metal or polymer materials, or can be integrally formed. This not only reduces the thickness of the door panel 100 while maintaining higher strength, but also improves the strength of the door panel 100 and the N low auxiliary runners 400, and improves the positional accuracy of the N low auxiliary runners 400. The M high auxiliary runners 200 are correspondingly embedded and combined with the M second limiting structures 500, and based on the structure of the second limiting structure 500, the high auxiliary runners 200 have a corresponding stepped glue structure. The stepped glue structure can improve the bonding strength between the M high auxiliary chutes 200 and the M second limiting structures 500, thereby improving the strength of the M high auxiliary chutes 200 and the door panel 100 and improving the position accuracy of the M high auxiliary chutes 200.

[0178] In some embodiments, the door panel assembly 50 may include both a first limiting structure 300 and a second limiting structure 500. In this way, the door panel 100 and the high auxiliary chute 200, as well as the door panel 100 and the low auxiliary chute 400, are not formed in an integrated manner. The first limiting structure 300 and the second limiting structure 500 are machined on the door panel 100, the low auxiliary chute 400 is injection-molded on the first limiting structure 300, and the high auxiliary chute 200 is embedded and combined with the second limiting structure 500. The specific implementation method, structural characteristics, and effects can be referred to the contents of the aforementioned embodiments, and will not be repeated here.

[0179] Figure 23 is a first flow chart of the method for manufacturing a door panel assembly according to an embodiment of the present application. Figure 24 is a first process flow chart of the method for manufacturing a door panel assembly according to an embodiment of the present application.

[0180] As shown in FIG23 , in some embodiments, a method for manufacturing a door panel assembly is used to manufacture the door panel assembly 50 provided in any of the embodiments corresponding to FIG4 to FIG17 . The method may include the following steps S101 to S103:

[0181] Step S101: providing a first blank and a second blank.

[0182] The first blank may be made of a metal blank or a polymer material blank or other blanks with a certain high strength, and the second blank may be made of a plastic material.

[0183] As shown in Figure 24(a), a raw metal blank is provided, and a door panel 100 and N high auxiliary runners 200 are integrally formed using MIM to obtain a first blank. The first blank includes the initial structure of the door panel 100 and the initial structure of the N high auxiliary runners 200. The metal blank can be made of metal materials such as stainless steel or titanium alloy.

[0184] Step S102 : Processing a door panel 100 , N high auxiliary chutes 200 and M first limiting structures 300 on a first blank.

[0185] As shown in Figure 24(b), the first blank is CNC-machined to produce high-precision features such as the outer shape of the door panel 100, the M first position-limiting structures 300, and the end faces of the N high-side auxiliary chutes 200. The structure of the high-side auxiliary chutes 200 can be referred to the structure shown in Figure 6 and will not be described in detail here.

[0186] Along a first direction, N high auxiliary slide grooves 200 are spaced apart on the first surface 101 of the door panel 100, and M first limiting structures 300 are spaced apart on the first surface 101 and / or inside the door panel 100. The first direction is the length direction of the door panel, that is, the first direction is the y-axis direction.

[0187] The first limiting structure 300 may include three structures. The specific structural forms can be referred to as shown in Figures 9, 11 and 15, and will not be described here in detail.

[0188] Step S103 , injection-molding the second blank into the M first limiting structures 300 to form M lower auxiliary chutes 400 , thereby obtaining the door panel assembly 50 .

[0189] As shown in FIG. 24( c ), plastic is injection molded into different first limiting structures 300 , and glue is drawn on the first limiting structures 300 to obtain lower auxiliary chutes 400 , and different lower auxiliary chutes 400 have different glue-drawing structures.

[0190] It should be noted that the embodiment of the present application discloses the structural characteristics and effects of the door panel assembly 50 in a relatively brief manner. The corresponding contents can be referred to the contents of the embodiments corresponding to the aforementioned Figures 4 to 17, and will not be repeated here.

[0191] The manufacturing method of the door panel assembly 50 provided in the embodiments of the present application utilizes an integrated design and secondary molding to combine two materials, thereby achieving an integrated solution for the door panel 100. The main body of the door panel 100 and the N high-side auxiliary runners 200 of the door panel assembly 50 are molded from the same material. This ensures the strength of the door panel 100 and the N high-side auxiliary runners 200 and improves the positioning accuracy of the N high-side auxiliary runners 200. Furthermore, the thickness of the door panel 100 and the wall thickness of the N high-side auxiliary runners 200 can be reduced, thereby reducing the thickness space occupied by the door panel assembly 50 within the hinge mechanism, thereby facilitating the thinning and lightweighting of electronic devices that include hinge mechanisms. The M low-auxiliary slides 400 are made of embedded injection molding and cooperate with the M first limiting structures 300 on the door panel 100 to meet the accuracy of the motion matching surface and improve the position accuracy of the M low-auxiliary slides 400; the M low-auxiliary slides 400 adopt different stepped glue pulling structures, and the stepped glue pulling structure is used to perform multi-layer plastic staggered distribution, which can achieve complete limitation in the x / y / z axis direction and improve the strength of the M low-auxiliary slides 400.

[0192] Figure 25 is a second flow chart of the method for manufacturing a door panel assembly provided in an embodiment of the present application.

[0193] As shown in FIG25 , in some embodiments, a method for manufacturing a door panel assembly is used to manufacture the door panel assembly 50 provided in any of the embodiments corresponding to FIG18 to FIG22 . The method may include the following steps S201 to S202:

[0194] Step S201: provide a door panel and M high auxiliary slide grooves.

[0195] The door panel assembly includes a door panel 100, N lower auxiliary runners 400, and M second limiting structures 500. Along a first direction, the N lower auxiliary runners 400 are spaced apart on a first surface 101 of the door panel 100, and the M second limiting structures 500 are spaced apart and recessed from the first surface 101 toward the interior of the door panel 100. The first direction is the length direction of the door panel 100.

[0196] In the door panel, the door panel 100 and the N lower auxiliary chutes 400 can be integrally formed using metal materials such as stainless steel or titanium alloy; the door panel 100 and the N lower auxiliary chutes 400 can also be integrally formed using an amorphous molding method.

[0197] The M high auxiliary chutes 200 can be made of metal materials such as stainless steel or titanium alloy and formed by MIM molding.

[0198] Step S202: fix M high auxiliary chutes on the door panel, and the M high auxiliary chutes correspond to the M second limiting structures one by one and form an embedded structure to obtain a door panel assembly.

[0199] There are two ways to combine the M high auxiliary chutes 200 with the door panel: embedding the M high auxiliary chutes 200 into the door panel, or embedding the door panel into the M high auxiliary chutes 200.

[0200] Figure 26 is a second process flow chart of the manufacturing method of the door panel assembly provided in an embodiment of the present application.

[0201] As shown in FIG26(a), in some embodiments, when a door panel is embedded in M ​​high auxiliary chutes 200, M high auxiliary chutes 200 are provided. The M high auxiliary chutes 200 are arranged at predetermined intervals, and the structure of the high auxiliary chutes 200 can adopt the structure shown in FIG22(b). The high auxiliary chutes 200 can be made of a metal material such as stainless steel or titanium alloy and formed using a MIM molding method.

[0202] As shown in (b) of FIG. 26 , in some embodiments, a door panel component is formed on M high auxiliary slide grooves 200 using an amorphous molding method to achieve the effect of embedding the door panel component into the M high auxiliary slide grooves 200 to obtain a door panel assembly 50 .

[0203] Here, the door panel 100 in the door panel can be made of metal materials such as stainless steel or titanium alloy, and the N lower auxiliary slide grooves 400 can be made of plastic. Amorphous molding can achieve integrated molding of different materials.

[0204] Figure 27 is a third process flow chart of the manufacturing method of the door panel assembly provided in an embodiment of the present application.

[0205] As shown in FIG. 27( a ), in some embodiments, when a method of embedding M high auxiliary slide grooves 200 into a door panel is adopted, a door panel and M high auxiliary slide grooves 200 are provided.

[0206] The door panel 100 and N lower auxiliary slide grooves 400 in the door panel can be made of metal materials such as stainless steel or titanium alloy and formed as one piece through MIM molding; the door panel also includes M second limiting structures 500, and the M second limiting structures 500 are located on the door panel 100.

[0207] The M high auxiliary chutes 200 can be made of metal materials such as stainless steel or titanium alloy and formed by MIM molding. In this way, two metal inserts can be obtained, namely the door panel and the high auxiliary chutes 200 inserts.

[0208] As shown in FIG. 27( b ), in some embodiments, M high auxiliary slide grooves 200 are embedded into M second limiting structures 500 of the door panel to form an embedded structure, thereby obtaining a door panel assembly 50 .

[0209] It should be noted that the embodiment of the present application discloses the structural characteristics and effects of the door panel assembly 50 in a relatively brief manner. The corresponding content can be referred to the contents of the embodiments corresponding to the aforementioned Figures 18 to 22, and will not be repeated here.

[0210] The manufacturing method of the door panel assembly 50 provided in the embodiments of the present application utilizes an integrated design and secondary molding to combine two materials, thereby achieving an integrated solution for the door panel 100. The door panel 100 body and the N lower auxiliary runners 400 of the door panel assembly 50 are integrally molded using the same or different materials. This ensures the strength of the door panel 100 and the N lower auxiliary runners 400 and improves the positioning accuracy of the N lower auxiliary runners 400. Furthermore, the thickness of the door panel 100 and the wall thickness of the N lower auxiliary runners 400 can be reduced, thereby reducing the thickness space occupied by the door panel assembly 50 within the hinge mechanism, thereby facilitating the thinning and lightweighting of electronic devices including hinge mechanisms. The M high auxiliary slides 200 adopt an embedded structure, which cooperates with the M second limiting structures 500 on the door panel 100 to meet the accuracy of the motion matching surface and improve the position accuracy of the M high auxiliary slides 200; and the M high auxiliary slides 200 adopt a stepped glue pulling structure, and the stepped glue pulling structure is used to perform multi-layer plastic staggered distribution, which can achieve complete limitation in the x / y / z axis direction and improve the strength of the M high auxiliary slides 200.

[0211] It should be noted that those skilled in the art will readily conceive of other embodiments of the present application after considering the specification and practicing the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope of this application is indicated by the following claims.

[0212] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A door panel assembly, characterized in that: include: A door panel (100) comprises a first surface (101), wherein the length direction of the door panel (100) is a first direction; M limiting structures, along the first direction, the M limiting structures are spaced apart and located inside the first surface (101) and / or the door panel (100); M+N motion sub-slots are provided, and along the first direction, the M+N motion sub-slots are spaced apart and located on the first surface (101), wherein the positions of the M motion sub-slots are opposite to the positions of the M limiting structures, the M motion sub-slots are fixed on the corresponding limiting structures, and the N motion sub-slots are integrally formed with the door panel (100); M is a positive integer, and N is a positive integer.

2. The door panel assembly according to claim 1, characterized in that: The M+N motion auxiliary chutes include N high auxiliary chutes (200) and M low auxiliary chutes (400); Along the first direction, N of the high auxiliary slide grooves (200) and M of the low auxiliary slide grooves (400) are spaced apart on the first surface (101).

3. The door panel assembly according to claim 2, characterized in that: The limiting structure comprises a first limiting structure (300); Along the first direction, M first limiting structures (300) are spaced apart and located inside the first surface (101) and / or the door panel (100); The positions of the M first limiting structures (300) are opposite to the positions of the M lower auxiliary slide grooves (400), and the M lower auxiliary slide grooves (400) are formed by injection molding on the corresponding first limiting structures (300).

4. The door panel assembly according to claim 3, characterized in that: The first limiting structure (300) is located on the first surface (101); The first limiting structure (300) comprises a base (311) and a first fixing groove (312), wherein the first fixing groove (312) is adjacent to the base (311) along a direction perpendicular to the first direction, and the base (311) comprises at least one through hole (313), wherein the axial direction of the through hole (313) is the same as the first direction.

5. The door panel assembly according to claim 4, characterized in that: The base (311) comprises at least two base bodies (314) in a stepped structure along the first direction; The base (314) includes the through hole (313).

6. The door panel assembly according to claim 5, characterized in that: The lower auxiliary slide groove (400) comprises: a first lower auxiliary glue pulling structure (411), a first fixing seat (412) and a first slide groove seat (413); The first low-side glue pulling structure (411) is formed by injection molding on the base (311) and in at least one of the through holes (313), and the first low-side glue pulling structure (411) includes at least one fixing column (414) formed at at least one of the through holes (313); The first slide slot seat (413) is formed by injection molding on the top of the side surface of the first lower secondary glue pulling structure (411). and injecting a first width along the first direction; The first fixing seat (412) is formed by injection molding in the first fixing groove (312), and is connected to the first low-side glue pulling structure (411) and the first sliding groove seat (413).

7. The door panel assembly according to claim 3, characterized in that: The first limiting structure (300) is located inside the door panel (100); The first limiting structure (300) comprises a recessed hole (321) and a second fixing groove (322), wherein the second fixing groove (322) is adjacent to the recessed hole (321) along a direction perpendicular to the first direction.

8. The door panel assembly according to claim 7, characterized in that: The lower auxiliary slide groove (400) comprises: a second lower auxiliary glue pulling structure (421), a second fixing seat (422) and a second slide groove seat (423); The second low-side glue pulling structure (421) is formed in the recessed hole (321) by injection molding; The second fixing seat (422) is formed by injection molding in the second fixing groove (322); The second slide seat (423) is connected to the second lower adhesive structure (421) and the second fixing seat (422), and is injection-molded to a first height along the first surface (101) in a second direction; Wherein, the second direction is the thickness direction of the door panel (100).

9. The door panel assembly according to claim 8, characterized in that: The recessed hole (321) comprises a first groove (3211) and a second groove (3212), wherein the first groove (3211) is recessed from the first surface (101) to a first depth inside the door panel (100), and the second groove (3212) is recessed from the second surface (102) of the door panel (100) to a second depth inside, and the first groove (3211) and the second groove (3212) are connected via a through hole (3213); The second low-sub glue pulling structure (421) includes a first layer structure (4211), a second layer structure (4212) and a third layer structure (4213) stacked in sequence; the first layer structure (4211) is formed by injection molding in the first groove (3211), the second layer structure (4212) is formed by injection molding in the through hole (3213), and the third layer structure (4213) is formed by injection molding in the second groove (3212).

10. The door panel assembly according to claim 3, characterized in that: The first limiting structure (300) is located inside the door panel (100); The first limiting structure (300) comprises a first special-shaped hole (331), a second special-shaped hole (332) and a third fixing groove (333), wherein the first special-shaped hole (331) and the second special-shaped hole (332) are in a stepped structure along a second direction, and the third fixing groove (333) is adjacent to the second special-shaped hole (332) along a direction perpendicular to the first direction; Wherein, the second direction is the thickness direction of the door panel (100).

11. The door panel assembly according to claim 10, characterized in that: The lower auxiliary slide groove (400) comprises: a third lower auxiliary glue pulling structure (431), a third fixing seat (432) and a third slide groove seat (433); The third low-side adhesive pull structure (431) is continuously formed by injection molding in the first special-shaped hole (331) and the second special-shaped hole (332), and the third low-side adhesive pull structure (431) is a stepped structure; The third fixing seat (432) is formed by injection molding in the third fixing groove (333); The third slide slot seat (433) is connected to the third lower adhesive structure (431) and the third fixing seat (432), and is injection-molded to a second height along the first surface (101) toward the second direction.

12. The door panel assembly according to claim 11, characterized in that: The third low-sub glue-drawing structure (431) includes a first special-shaped structure (4311) and a second special-shaped structure (4312); The first special-shaped structure (4311) and the second special-shaped structure (4312) are in a stepped structure along a direction perpendicular to the first direction.

13. The door panel assembly according to any one of claims 2 to 12, characterized in that: The door panel (100) and the N high auxiliary slide grooves (200) are integrally formed.

14. The door panel assembly according to claim 1, characterized in that: The M+N motion auxiliary chutes include M high auxiliary chutes (200) and N low auxiliary chutes (400); Along the first direction, M of the high auxiliary slide grooves (200) and N of the low auxiliary slide grooves (400) are spaced apart on the first surface (101).

15. The door panel assembly according to claim 14, characterized in that: The limiting structure comprises: a second limiting structure (500); Along the first direction, M second limiting structures (500) are arranged at intervals and are recessed from the first surface (101) toward the inside of the door panel (100); The positions of the M second limiting structures (500) are opposite to the positions of the M high auxiliary slide grooves (200), and the M second limiting structures (500) are used to fix the M high auxiliary slide grooves (200).

16. The door panel assembly according to claim 15, characterized in that: The second limiting structure (500) comprises a third groove (501), and a first special-shaped groove (502) and a second special-shaped groove (503) located on both sides of the third groove (501) in the length direction; The third groove (501), the first special-shaped groove (502) and the second special-shaped groove (503) are recessed from the first surface (101) toward the inside of the door panel (100); The length direction of the third groove (501) is perpendicular to the first direction, and the length direction of the first special-shaped groove (502) and the length direction of the second special-shaped groove (503) are the same as the first direction.

17. The door panel assembly according to claim 16, characterized in that: The high-side sliding groove (200) comprises a first high-side rubber pulling structure (202), a second high-side rubber pulling structure (203), a third high-side rubber pulling structure (204) and a fourth sliding groove seat (205); The first high-side adhesive pull structure (202) is embedded in the first special-shaped groove (502), the second high-side adhesive pull structure (203) is embedded in the second special-shaped groove (503), and the third high-side adhesive pull structure (204) is embedded in the third groove (501), and the two ends of the first high-side adhesive pull structure (202) along the first direction are in a stepped structure, and the two ends of the second high-side adhesive pull structure (203) along the first direction are in a stepped structure; The fourth slide slot seat (205) is located on the third high-side glue pulling structure (204) and is relatively close to the third high-side glue pulling structure (204) along the second direction. Injection molding a third height on the first surface (101); Wherein, the second direction is the thickness direction of the door panel (100).

18. The door panel assembly according to claim 17, characterized in that: The first special-shaped groove (502) comprises an upper groove (5021), two connecting grooves (5022) and two lower grooves (5023); The upper groove (5021) is connected to a connecting groove (5022) at both sides along the first direction, and each connecting groove (5022) is connected to a lower groove (5023), so that the first special-shaped groove (502) forms a structure with steps downward from the first surface (101) to the second surface (102) of the door panel at both ends along the first direction; The first high-side glue-drawing structure (202) comprises an upper structure (2021), two supporting structures (2022) and two lower structures (2023); The upper structure (2021) is connected to one of the supporting structures (2022) at both sides along the first direction, and each of the supporting structures (2022) is connected to one of the lower structures (2023), so that the first high-sub glue-drawing structure (202) forms a structure with steps from the first surface (101) to the second surface (102) at both ends along the first direction; The upper structure (2021) is embedded in the upper groove (5021), the supporting structure (2022) is embedded in the connecting groove (5022), and the lower structure (2023) is embedded in the lower groove (5023).

19. The door panel assembly according to any one of claims 14 to 18, characterized in that: The door panel (100) and the N lower auxiliary slide grooves (400) are integrally formed.

20. A method for manufacturing a door panel assembly, characterized in that: For making a door panel assembly according to any one of claims 1 to 13, the method comprises: providing a first blank and a second blank; A door panel, N high auxiliary slide grooves and M first limiting structures are processed on the first blank; wherein, along a first direction, the N high auxiliary slide grooves are spaced apart on a first surface of the door panel, and the M first limiting structures are spaced apart on the first surface and / or inside of the door panel; Injection molding the second blank into the M first limiting structures to form M lower auxiliary slide grooves to obtain the door panel assembly; Wherein, the first direction is the length direction of the door panel.

21. A method for manufacturing a door panel assembly, characterized in that: For making a door panel assembly according to any one of claims 14 to 19, the method comprises: A door panel and M high auxiliary slide grooves are provided; wherein the door panel comprises a door panel, N low auxiliary slide grooves and M second limiting structures; wherein along a first direction, the N low auxiliary slide grooves are spaced apart on a first surface of the door panel, and the M second limiting structures are spaced apart and recessed from the first surface toward the inside of the door panel, and the first direction is the length direction of the door panel; The M high auxiliary slide grooves are fixed on the door panel component, and the M high auxiliary slide grooves correspond to the M second limiting structures one by one and form an embedded structure to obtain the door panel assembly.

22. A rotating shaft mechanism, characterized in that: Comprising a door panel assembly as described in any one of claims 1-19.

23. An electronic device, characterized in that: Comprising the rotating shaft mechanism as claimed in claim 22.

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