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

Abstract

The present application discloses a door panel assembly and a manufacturing method thereof, a rotating shaft mechanism and an electronic device, which are applied to the field of terminal equipment technology. The door panel assembly includes: a door panel, including a first surface, the length direction of the door panel is the first direction; along the first direction, M limiting structures are spaced apart on the first surface and / or inside the door panel; and M+N motion sub-slots are spaced apart on the first surface, 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; M is a positive integer, and N is a positive integer. In this way, not only the strength of the door panel and each motion sub-slot can be improved, but also the position accuracy of each motion sub-slot can be improved; the limiting structure is located on the first surface and / or inside 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 lightness and thinness of the electronic device.

Description

[0001] This application is a divisional application. The application number of the original application is 202311061216.4, and the original application date is August 23, 2023. The entire contents of the original application are incorporated into this application by reference. 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 take into account 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 a left door panel and a right door panel located on both sides of the base. The flexible screen covers the left door panel and the right door panel (hereinafter collectively referred to as the door panel assembly). The door panel assembly includes a kinematic pair for connecting the door panel assembly with other structural parts. The door panel assembly can be bent and flattened with the hinge mechanism to support the flexible screen in the flattened state, and to press the flexible screen into a water drop shape in the folded state.

[0005] The main body and the kinematic pair of the door panel assembly can usually be formed by one-piece injection molding or carbon fiber and embedded injection molding. However, this molding method easily makes the overall strength of the door panel assembly and the kinematic pair relatively weak, and occupies thickness space. The main body and the kinematic pair of the door panel assembly can also usually be formed by riveting. However, this molding method requires a large number of parts, the position accuracy of the kinematic pair is not easy to guarantee, and it also occupies thickness space. It can be seen that the existing door panel assembly cannot meet the use requirements. Summary of the invention

[0006] 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 the usage requirements.

[0007] In a first aspect, the present application provides a door panel assembly, comprising: a door panel, comprising a first surface, the length direction of the door panel being the first direction; M limiting structures, along the first direction, the M limiting structures are spaced apart on the first surface and / or inside the door panel; M+N motion sub-slots, along the first direction, the M+N motion sub-slots are spaced apart on the first surface, 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; M is a positive integer, and N is a positive integer.

[0008] 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 can not only improve the strength of the door panel 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 and / or the interior of the door panel, does not occupy the thickness space of the door panel, and thus will not affect the thickness space of the rotating shaft mechanism, so as to realize the lightweight and thin electronic device and meet the usage requirements.

[0009] In some implementations, the M+N motion auxiliary chutes include N high auxiliary chutes and M low auxiliary chutes; along the first direction, the N high auxiliary chutes and the M low auxiliary chutes are spaced apart on the first surface. In this way, different high auxiliary chutes and low auxiliary chutes can be used to achieve connection with different structural members in the rotating shaft mechanism.

[0010] In some implementations, the limiting structure includes a first limiting structure; along the first direction, M first limiting structures are spaced and located inside the first surface and / or the door panel; the positions of the M first limiting structures are opposite to the positions of the M low auxiliary chutes, and the M low auxiliary chutes are formed by injection molding on the corresponding first limiting structures. In this way, the low auxiliary chutes can be formed on the corresponding first limiting structures by injection molding to improve the bonding strength between the low auxiliary chutes and the first limiting structure, thereby improving the strength of the low auxiliary chutes and the door panel.

[0011] In some implementations, the first limiting structure is located on the first surface; the first limiting structure includes a base and a first fixing groove, the first fixing groove is adjacent to the base along a direction perpendicular to the first direction, and the base includes at least one through hole, and the axial direction of the through hole is the same as the first direction. The base includes at least two substrates in a stepped structure along the first direction; the substrate includes a through hole. In this way, the plastic can be distributed in the through hole and on the two stepped substrates by pulling glue, thereby improving the bonding force between the low auxiliary slide and the first limiting structure, which can not only accurately position the low auxiliary slide, stably fix the low auxiliary slide, but also improve the strength of the low auxiliary slide.

[0012] In some implementations, the low-side slide includes: a first low-side glue-pulling structure, a first fixed seat, and a first slide seat; the first low-side glue-pulling structure is injection-molded on the base and in at least one through hole, and the first low-side glue-pulling structure includes at least one fixed column formed at at least one through hole; the first slide seat is injection-molded on the top of the side surface of the first low-side glue-pulling structure, and the first width is injection-molded along the first direction; the first fixed seat is injection-molded in the first fixed groove, and is connected to the first low-side glue-pulling structure and the first slide seat. In this way, the low-side slide is embedded in the interior of the door panel through the first fixed seat, and the first low-side glue-pulling structure is combined with the base to improve the binding force between the low-side slide and the first limiting structure. Not only can the stability of the low-side slide and the door panel be improved, the strength of the door panel and the low-side slide be improved, but also the position accuracy of the low-side slide can be improved.

[0013] In some implementations, the first limiting structure is located inside the door panel; the first limiting structure includes a recessed hole and a second fixing groove, and the second fixing groove is adjacent to the recessed hole in a direction perpendicular to the first direction. In this way, the plastic is distributed in the recessed hole and the second fixing groove, and the bonding force between the lower auxiliary slide and the first limiting structure is improved, which can not only accurately position the lower auxiliary slide, stably fix the lower auxiliary slide, but also improve the strength of the lower auxiliary slide.

[0014] In some implementations, the low auxiliary slide includes: a second low auxiliary glue pulling structure, a second fixing seat and a second slide seat; the second low auxiliary glue pulling structure is formed by injection molding in the recessed hole; the second fixing seat is formed by injection molding in the second fixing groove; the second slide seat is connected to the second low auxiliary glue pulling structure and the second fixing seat, and a first height is injected along the first surface toward the second direction; wherein the second direction is the thickness direction of the door panel. In this way, the low auxiliary slide is embedded in the interior of the door panel through the second low auxiliary glue pulling structure and the second fixing seat to improve the binding force between the low auxiliary slide and the first limiting structure. Not only can the stability of the low auxiliary slide and the door panel be improved, the strength of the door panel and the low auxiliary slide can be improved, but also the position accuracy of the low auxiliary slide can be improved.

[0015] In some implementations, the recessed hole includes a first groove and a second groove, the first groove is recessed from the first surface to the inside of the door panel to a first depth, the second groove is recessed from the second surface of the door panel to the inside to a second depth, and the first groove and the second groove are connected through a through hole; the second low-side glue-drawing structure includes a first layer structure, a second layer structure and a third layer structure stacked in sequence; the first layer structure is formed by injection molding in the first groove, the second layer structure is formed by injection molding in the through hole, and the third layer structure is formed by injection molding in the second groove. In this way, the second low-side glue-drawing structure and the recessed hole form an embedded structure, which can not only improve the binding force between the low-side slide groove and the first limiting structure, thereby improving the position accuracy of the low-side slide groove, but also improve the strength of the door panel and the low-side slide groove.

[0016] In some implementations, the first limiting structure is located inside the door panel; the first limiting structure includes a first special-shaped hole, a second special-shaped hole and a third fixing groove, the first special-shaped hole and the second special-shaped hole are in a stepped structure along the second direction, and the third fixing groove is adjacent to the second special-shaped hole in a direction perpendicular to the first direction; wherein the second direction is the thickness direction of the door panel. In this way, the first special-shaped hole and the second special-shaped hole form two groups of staggered step structures. By drawing glue through the two groups of staggered step structures, the two groups of staggered step structure features can be completely limited in different axial directions, thereby improving the position accuracy and strength of the low auxiliary slide.

[0017] In some implementations, the low auxiliary slide includes: a third low auxiliary glue pulling structure, a third fixed seat and a third slide seat; the third low auxiliary glue pulling structure is continuously formed in the first special-shaped hole and the second special-shaped hole by injection molding, and the third low auxiliary glue pulling structure is a stepped structure; the third fixed seat is formed in the third fixed groove by injection molding; the third slide seat is connected to the third low auxiliary glue pulling structure and the third fixed seat, and a second height is injected along the first surface toward the second direction. The third low auxiliary glue pulling structure includes a first special-shaped structure and a second special-shaped structure; the first special-shaped structure and the second special-shaped structure are in a stepped structure along a direction perpendicular to the first direction. In this way, the low auxiliary slide is embedded in the interior of the door panel through the third low auxiliary glue pulling structure and the third fixed seat to improve the bonding force between the low auxiliary slide and the first limiting structure. The first limiting structure is step-shaped glue pulled through the first special-shaped hole and the second special-shaped hole, so that the low auxiliary slide has a corresponding step-shaped glue pulling structure. In this way, not only the stability of the low auxiliary slide and the door panel can be improved, the strength of the door panel and the low auxiliary slide can be improved, but also the position accuracy of the low auxiliary slide can be improved.

[0018] In some implementations, the door panel and the N high auxiliary slide grooves are integrally formed. In this way, the thickness of the door panel can be reduced while the door panel assembly has higher strength, which can not only improve the strength of the door panel and the high auxiliary slide groove, but also reduce the thickness of the shaft mechanism including the door panel assembly.

[0019] In some implementations, the M+N motion auxiliary slides include M high auxiliary slides and N low auxiliary slides; along the first direction, the M high auxiliary slides and the N low auxiliary slides are spaced apart on the first surface. In this way, different high auxiliary slides and low auxiliary slides can be used to achieve connection with different structural members in the rotating shaft mechanism.

[0020] In some implementations, the limiting structure includes: a second limiting structure; along the first direction, M second limiting structures are arranged at intervals and are recessed from the first surface toward the inside of the door panel; the positions of the M second limiting structures are opposite to the positions of the M high auxiliary slides, and the M second limiting structures are used to fix the M high auxiliary slides. In this way, the second limiting structure can be used to fix the high auxiliary slide, thereby improving the position accuracy and strength of the high auxiliary slide.

[0021] In some implementations, the second position-limiting structure includes a third groove, and a first special-shaped groove and a second special-shaped groove located on both sides of the third groove in the length direction; the third groove, the first special-shaped groove and the second special-shaped groove are recessed from the first surface to the inside of the door panel; the length direction of the third groove is perpendicular to the first direction, and the length directions of the first special-shaped groove and the second special-shaped groove are the same as the first direction. In this way, the binding force between the high auxiliary slide and the second position-limiting structure can be improved, which can not only accurately locate the high auxiliary slide, stably fix the high auxiliary slide, but also improve the strength of the high auxiliary slide.

[0022] In some implementations, the high-side slide includes a first high-side glue pulling structure, a second high-side glue pulling structure, a third high-side glue pulling structure and a fourth slide seat; the first high-side glue pulling structure is embedded in the first special-shaped groove, the second high-side glue pulling structure is embedded in the second special-shaped groove, the third high-side glue pulling structure is embedded in the third groove, the first high-side glue pulling structure has two ends along the first direction in a stepped structure, and the second high-side glue pulling structure has two ends along the first direction in a stepped structure; the fourth slide seat is located on the third high-side glue pulling structure, and is injection molded at a third height relative to the first surface along the second direction; wherein the second direction is the thickness direction of the door panel. In this way, the binding force between the high-side slide and the second limiting structure can be improved, not only can the high-side slide be accurately positioned and stably fixed, but also the strength of the high-side slide can be improved.

[0023] 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 both sides along the first direction, and each connecting groove is connected to a lower groove, so that the first special-shaped groove forms a structure with a step-down 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 both sides 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 with a step-down 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, through the two-layer staggered distribution of the stepped structure of the high-sub slide and the second limiting structure on the door panel, complete limiting in the first direction can be achieved to improve the position accuracy and strength of the high-sub slide.

[0024] In some implementations, the door panel and the N low auxiliary slide grooves are integrally formed, so that not only can the thickness of the door panel be reduced while having higher strength, but also the strength of the door panel and the low auxiliary slide grooves can be improved, and the position accuracy of the low auxiliary slide grooves can be improved.

[0025] In a second aspect, the present application provides a method for manufacturing a door panel assembly, which is used to manufacture the door panel assembly provided in the first aspect, and the method includes: providing a first blank and a second blank; processing a door panel, N high auxiliary chutes and M first limiting structures on the first blank; wherein, along a first direction, the N high auxiliary chutes are spaced on the first surface of the door panel, and the M first limiting structures are spaced on the first surface and / or inside the door panel; the second blank is injection molded in the M first limiting structures to form M low auxiliary chutes to obtain a door panel assembly; wherein the first direction is the length direction of the door panel. In this way, the strength of the door panel and the high auxiliary chutes can be ensured, and the position accuracy of the high auxiliary chutes can be improved. The thickness of the door panel and the wall thickness of the high auxiliary chutes can also be reduced to reduce the thickness space occupied by the door panel assembly in the rotating shaft mechanism, which is conducive to the thinness of the electronic equipment including the rotating shaft mechanism. The low auxiliary chutes are embedded injection molded, and cooperate with the first limiting structure on the door panel to meet the motion matching surface accuracy and improve the position accuracy and strength of the low auxiliary chutes.

[0026] In a third aspect, the present application provides a method for manufacturing a door panel assembly, which is used to manufacture the door panel assembly provided in the first aspect, and the method includes: providing a door panel member and M high auxiliary slide grooves; wherein the door panel member includes 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 the first surface of the door panel, and the M second limiting structures are spaced apart and recessed from the first surface to 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 member, and the M high auxiliary slide grooves correspond to the M second limiting structures one by one and form an embedded structure to obtain a door panel assembly. In this way, the strength of the door panel and the strength of the low auxiliary slide groove can be ensured, and the position accuracy of the low auxiliary slide groove can be improved. The thickness of the door panel and the wall thickness of the low auxiliary slide groove can also be reduced to reduce the thickness space occupied by the door panel assembly in the rotating shaft mechanism, which is conducive to the thinness of the electronic equipment including the rotating shaft 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.

[0027] In a fourth aspect, the present application provides a pivot mechanism, comprising a door panel assembly as provided in the first aspect.

[0028] In a fifth aspect, the present application provides an electronic device, comprising a hinge mechanism as provided in the fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0030] Figure 1is a schematic diagram of the structure of an electronic device 100A provided in an embodiment of the present application;

[0031] Figure 2A This is a first structural schematic diagram of the screen 30 and the rotating shaft mechanism 40 provided in an embodiment of the present application;

[0032] Figure 2B is a second structural schematic diagram of the screen 30 and the rotating shaft mechanism 40 provided in the embodiment of the present application;

[0033] Figure 3 yes Figure 1 Structural diagram of the AA section;

[0034] Figure 4 This is a first structural schematic diagram of a door panel assembly 50 provided in an embodiment of the present application;

[0035] Figure 5 is a second structural schematic diagram of a door panel assembly 50 provided in an embodiment of the present application;

[0036] Figure 6 yes Figure 5 A partial enlarged view of the D area in the middle;

[0037] Fig. 7A is a third structural schematic diagram of the door panel assembly 50 provided in an embodiment of the present application;

[0038] Figure 7B yes Fig. 7A A structural diagram from another perspective;

[0039] Figure 8 yes Figure 4 Schematic diagram of structural decomposition of region A in the middle;

[0040] Fig. 9 This is a schematic diagram of glue pulling in area A provided in an embodiment of the present application;

[0041] Fig.10 4 is a schematic diagram of the structure of the low auxiliary chute 400 in the A area provided in the embodiment of the present application;

[0042] Fig.11 yes Figure 4 Schematic diagram of structural decomposition of region B in the middle;

[0043] Fig.12 This is a schematic diagram of glue pulling in area B provided in an embodiment of the present application;

[0044] Fig.13 4 is a schematic diagram of the structure of the lower auxiliary chute 400 in the B area provided in the embodiment of the present application;

[0045] Fig.14 yes Fig.11Schematic diagram of the structure of the BB section in (c);

[0046] Fig.15 yes Figure 4 Schematic diagram of structural decomposition of the middle C region;

[0047] Fig.16 This is a schematic diagram of glue pulling in the C region provided in the embodiment of the present application;

[0048] Fig.17 4 is a schematic diagram of the structure of the low auxiliary chute 400 in the C area provided in the embodiment of the present application;

[0049] Fig.18 is a fourth structural schematic diagram of a door panel assembly 50 provided in an embodiment of the present application;

[0050] Fig.19 is a fifth structural schematic diagram of a door panel assembly 50 provided in an embodiment of the present application;

[0051] Fig. 20A is a fourth structural schematic diagram of a door panel assembly 50 provided in an embodiment of the present application;

[0052] Fig. 20B yes Fig. 20A A structural diagram from another perspective;

[0053] Fig.21 yes Fig. 20A Schematic diagram of structural decomposition of the E region in the middle;

[0054] Fig. 22 2 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;

[0055] Fig.23 This is the first flow chart of the method for manufacturing a door panel assembly provided in an embodiment of the present application;

[0056] Fig.24 This is the first process flow chart of the method for manufacturing a door panel assembly provided in an embodiment of the present application;

[0057] Fig.25 is a second flow chart of a method for manufacturing a door panel assembly provided in an embodiment of the present application;

[0058] Fig.26 is a second process flow chart of the method for manufacturing a door panel assembly provided in an embodiment of the present application;

[0059] Fig. 27 This is the third process flow chart of the method for manufacturing a door panel assembly provided in an embodiment of the present application. DETAILED DESCRIPTION

[0060] The technical solutions in the embodiments of the present application will be described clearly below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, other embodiments obtained by ordinary technicians in this field without making creative work all belong to the protection scope of the present application.

[0061] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "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.

[0062] In addition, in the present 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 the changes in the orientation of the components in the drawings.

[0063] The electronic device described in the embodiments of the present application includes but is not limited to a mobile phone, a folding screen mobile phone, a notebook computer, a tablet computer, a laptop computer, a personal digital assistant or a wearable device, etc. The following description is made by taking the electronic device as a folding screen mobile phone.

[0064] Figure 1 It is a schematic diagram of the structure of an electronic device 100A provided in an embodiment of the present application.

[0065] like Figure 1 As shown, the 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 both sides of the axis direction of the hinge mechanism 40, and the first body 10 and the second body 20 are respectively connected to the hinge mechanism 40, and can be rotated by the hinge mechanism 40 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.

[0066] 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 may be a bendable flexible screen.

[0067] 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.

[0068] Figure 2A This is the first structural schematic diagram of the screen 30 and the rotating shaft mechanism 40 provided in the embodiment of the present application. Figure 2B This is a second structural schematic diagram of the screen 30 and the rotating shaft mechanism 40 provided in the embodiment of the present application.

[0069] like Figure 2A As shown, 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 parallelly distributed on both sides of the hinge mechanism 40, and the screen 30 is laid flat on the hinge mechanism 40 in the unfolded state.

[0070] like Figure 2B As shown, 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 water drop shape.

[0071] Figure 3 yes Figure 1 Schematic diagram of the structure of the AA section. Figure 3 Only the structure of the rotating shaft mechanism 40 is shown, and the remaining structures are not shown.

[0072] Combination Figure 2A , Figure 2B and Figure 3 As shown, the rotating shaft 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 group of main swing arms 46 and a group of auxiliary swing arms 47. The left door panel 42 and the right door panel 43 are located on both sides of the base 41, the left door panel 42 is connected to the left connecting block 44, and the right door panel 43 is connected to the right connecting block 45. The left connecting block 44 is rotatably connected to one side of the base 41 through a main swing arm 46 and an auxiliary swing arm 47, and the right connecting block 45 is rotatably connected to the other side of the base 41 through a main swing arm 46 and an auxiliary swing arm 47. A rotating shaft can be set in the base 41, so that the main swing arm 46 and the auxiliary swing arm 47 can rotate around the base 41 to drive the corresponding connecting block to move, and then the connecting block drives the corresponding door panel to rotate. Among them, at least one of the main swing arm 46 and the auxiliary swing arm 47 can also be connected to the door panel (hereinafter referred to as the door panel) to improve the rotation accuracy.

[0073] The screen 30 is covered on 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 rotating shaft mechanism 40, and can push the screen 30 to fold or unfold, so as to support the screen 30 in the unfolded state, and press the screen 30 into a water drop shape in the folded state.

[0074] The door panel includes a plurality of kinematic pairs 48 for realizing the connection between the various structural members. Exemplarily, the kinematic pairs 48 can realize the connection between the door panel and the left connecting block 44, and 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.

[0075] The door panel and the kinematic pair 48 can usually be formed by an all-in-one (AIO) injection molding method or a carbon fiber and embedded injection molding method. However, this molding method tends to make the door panel as a whole and the kinematic pair relatively weak in strength, and occupy the thickness space (z-axis direction) of the rotating shaft mechanism 40, thereby increasing the thickness space occupied by the rotating shaft mechanism 40 in the electronic device, and failing to achieve a thinner and lighter electronic device.

[0076] The door panel and the kinematic pair 48 can also be formed by riveting. For example, the door panel body is formed by aluminum alloy computer numerical control machining (Computerised Numerical Control Machine, CNC) and the kinematic pair 48 is formed by metal powder injection molding (Metal Powder Injection Molding Technology, MIM). Finally, the kinematic pair 48 and the door panel body are riveted by screws. However, this forming method requires a large number of screw parts, the position accuracy of the kinematic pair is not easy to ensure, and it also occupies thickness space. It can be seen that the existing door panel cannot meet the use requirements.

[0077] In order to solve the above technical problems, the 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 the use requirements.

[0078] Figure 4 This is the first structural schematic diagram of the door panel assembly 50 provided in the embodiment of the present application.

[0079] like Figure 4 As shown, 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.

[0080] The door panel 100 includes a first surface 101, Figure 2AThe first surface 101 is a surface away from the screen 30. Exemplarily, the length direction of the door panel 100 is defined as the first direction D1, and the first direction D1 is the same as the y-axis direction.

[0081] 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 slide grooves are spaced apart on the first surface 101, wherein the positions of the M motion secondary slide grooves are opposite to the positions of the M limiting structures, the M motion secondary slide grooves are fixed on the corresponding limiting structures, and the N motion secondary slide grooves are integrally formed with the door panel 100.

[0082] 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 the interior of 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 thin electronic device 100A and meet the usage requirements.

[0083] Figure 5 This is a second structural schematic diagram of the door panel assembly 50 provided in an embodiment of the present application.

[0084] Combination Figure 4 and Figure 5 As shown, 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 may be used to achieve connection with different structural members in the rotating shaft mechanism 40.

[0085] Taking the example that M+N motion auxiliary chutes include 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, and there is a certain distance between the two. Exemplarily, N can be 6, and M can be 8.

[0086] Figure 6 yes Figure 5 A partial enlarged view of the D area in the middle.

[0087] like Figure 6As shown, in some embodiments, the structures of N high auxiliary chutes 200 may be the same. The high auxiliary chutes 200 may include chutes 201, and the N high auxiliary chutes 200 are used to connect with 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 with the connecting block.

[0088] In this way, the distance and position of two adjacent high auxiliary chutes 200 are not specifically limited, but just correspond to the position of the main swing arm 46 or the auxiliary swing arm 47, so as to achieve the 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 just correspond to the position of the connecting block, so as to achieve the precise connection between the door panel 100 and the connecting block.

[0089] In some embodiments, the door panel 100 and the N high auxiliary chutes 200 can be made of metal materials or polymer materials with certain high strength, and the door panel 100 and the N high auxiliary chutes 200 can be integrally formed. Exemplarily, 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.

[0090] The lower auxiliary slide groove 400 may be made of a hard plastic material. For example, the plastic may include polycarbonate (PC) plastic material.

[0091] In the embodiment of the present application, the metal blank is processed by CNC to obtain high-precision features such as the shape of the door panel 100 and the end face of the high auxiliary slide groove 200, so that the position of each high auxiliary slide groove 200 relative to the door panel 100 can be accurately guaranteed. In addition, the use of high-strength materials can reduce the thickness of the door panel 100 while having higher strength, which can not only improve the strength of the door panel 100 and the high auxiliary slide groove 200, but also reduce the thickness of the shaft mechanism.

[0092] Fig. 7A This is the third structural schematic diagram of the door panel assembly 50 provided in the embodiment of the present application. Figure 7B yes Fig. 7A A structural diagram from another perspective. Fig. 7A The structure of the lower auxiliary chute 400 is not shown.

[0093] like Fig. 7A and Figure 7BAs shown, 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 inside the first surface 101 and / or the door panel 100. Exemplarily, the M first limiting structures 300 may be integrally formed with the door panel 100.

[0094] 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, and the M lower auxiliary chutes 400 are injection-molded on the corresponding first limiting structures 300.

[0095] In this way, the lower auxiliary slide groove 400 can produce a glue structure on the corresponding first limiting structure 300 through injection molding, and the glue structure can improve the bonding strength between the lower auxiliary slide groove 400 and the first limiting structure 300, thereby improving the strength of the lower auxiliary slide groove 400 and the door panel 100.

[0096] Combination Figure 4 , Fig. 7A and Figure 7B As shown, 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.

[0097] Exemplarily, the first limiting structure 300 may include three structures, and the 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, the three first limiting structures 300 in area A adopt the same structure, and correspondingly, the three low auxiliary slide grooves 400 in area A adopt the same structure. If the number of B areas includes three, the three first limiting structures 300 in area B adopt the same structure, and correspondingly, the three low auxiliary slide grooves 400 in area B adopt the same structure. If the number of C areas includes two, the two first limiting structures 300 in area C adopt the same structure, and correspondingly, the two low auxiliary slide grooves 400 in area C adopt the same structure.

[0098] The following description takes the structures of a group of first limiting structures 300 and lower auxiliary slide grooves 400 in each area, namely, area A, area B and area C, as an example.

[0099] Figure 8 yes Figure 4 Schematic diagram of the structural decomposition of region A. Figure 8 (a) is a structure in which the first limiting structure 300 is located on the first surface 101 of the door panel 100; Figure 8(b) shows a structure in which the first limiting structure 300 is located on the second surface 102 of the door panel 100. The first surface 101 and the second surface 102 are opposite surfaces. Figure 2A , the second surface 102 is a surface adjacent to the screen 30; Figure 8 (c) is a schematic diagram of the combination of the first limiting structure 300 and the lower auxiliary slide groove 400.

[0100] like Figure 8 (a) and Figure 8 As shown in (b), in some embodiments, the first limiting structure 300 may be located on the first surface 101 of the door panel 100 .

[0101] The first limiting structure 300 may include a base 311 and a first fixing groove 312. The first fixing groove 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.

[0102] The base 311 is located on the first surface 101 and protrudes a certain height along the z-axis direction; the first fixing groove 312 includes an upper groove (not shown in the figure) formed by the first surface 101 being recessed into the interior of the door panel 100 by a first depth, and a lower groove (not shown in the figure) formed by the second surface 102 being recessed into the interior of the door panel 100 by a second depth, and the upper groove is connected to the lower groove. The sum of the first depth and the second depth is less than the thickness of the door panel 100.

[0103] The base 311 may include at least one through hole 313, the axis direction of the through hole 313 is the same as the first direction, that is, the axis direction of the through hole 313 is the same as the y-axis direction. The base 311 may include at least two bases 314 in a stepped structure along the first direction, each base 314 including a corresponding through hole 313.

[0104] like Figure 8 As shown in (c), plastic is injected on the first limiting structure 300 to form the lower auxiliary slide groove 400 in the A area.

[0105] In this way, the plastic can be distributed in the through hole 313 and on the two stepped substrates 314 by pulling glue, thereby improving the bonding force between the lower auxiliary slide groove 400 and the first limiting structure 300. It can not only accurately position the lower auxiliary slide groove 400 and stably fix the lower auxiliary slide groove 400, but also improve the strength of the lower auxiliary slide groove 400.

[0106] Fig. 9 This is a schematic diagram of glue pulling in area A provided in an embodiment of the present application.

[0107] like Figure 8 (a) and Fig. 9As shown, in some embodiments, the two substrates 314 are staggered in a step-like manner along the first direction (y-axis direction), so that the two substrates 314 form two staggered areas. The low-pitch plastic is injected into the two staggered areas and the first fixing groove 312 by injection molding, and the entire base 311 is covered by glue pulling, and the plastic is filled in the through hole 313 of each substrate 314.

[0108] In this way, this glue pulling method uses a stepped structure and a through-hole structure to pull glue. The stepped glue pulling structure feature can limit the glue pulling in the x / y axis, and the through-hole glue pulling structure feature can limit the glue pulling in the z axis. The stepped structure can achieve a 2-layer thick glue pulling characteristic (low-sub plastic-base 311). Compared with the common 3-layer thick glue pulling characteristic, the embodiment of the present application can save a layer of thickness in the y-axis direction. For example, more than 0.25mm of y-direction space can be saved to avoid the problem of insufficient y-direction space.

[0109] Fig.10 4 is a schematic diagram of the structure of the low auxiliary chute 400 in the A area provided by the embodiment of the present application. Fig.10 (a) and Fig.10 (b) shows the structure of the lower auxiliary chute 400 from different viewing angles.

[0110] like Figure 8 Middle (a), Fig.10 (a) and Fig.10 As shown in (b), in some embodiments, the low auxiliary slide groove 400 may include: a first low auxiliary glue pulling structure 411, a first fixing seat 412 and a first slide groove seat 413.

[0111] By injection molding and glue drawing, the low-side plastic is injected on the base 311 and in at least one through hole 313 to form a first low-side glue drawing structure 411. The first low-side glue drawing structure 411 includes at least one fixing column 414 formed at at least one through hole 313 to improve the strength and position accuracy of the low-side slide 400.

[0112] 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, which is used to connect with the connecting block of the rotating shaft mechanism.

[0113] The low-side plastic is injected into the first fixing groove 312 to form a first fixing seat 412. The first fixing seat 412 is connected to the first low-side rubber structure 411 and the first slide groove seat 413, which can improve the strength of the low-side slide groove 400.

[0114] 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. In this way, the lower auxiliary slide groove 400 may be prevented from affecting other structural parts on the door panel 100.

[0115] The lower auxiliary chute 400 in the A area is embedded in the door panel 100 through the first fixing seat 412, and the first lower auxiliary glue structure 411 is combined with the base 311 to improve the binding force between the lower auxiliary chute 400 and the first limiting structure 300. The first limiting structure 300 is staggered by distributing two layers of plastic through a stepped structure, so that the lower auxiliary chute 400 has a stepped glue structure; the lower auxiliary chute 400 has a hole glue structure through a through-hole structure. In this way, not only the stability of the lower auxiliary chute 400 and the door panel 100 can be improved, the strength of the door panel 100 and the lower auxiliary chute 400 can be improved, but also the position accuracy of the lower auxiliary chute 400 can be improved.

[0116] Fig.11 yes Figure 4 Schematic diagram of the structural decomposition of region B. Fig.11 (a) is a structure in which the first limiting structure 300 is located on the first surface 101 of the door panel 100; Fig.11 (b) is a structure in which the first limiting structure 300 is located on the second surface 102 of the door panel 100; Fig.11 (c) is a schematic diagram of the combination of the first limiting structure 300 and the lower auxiliary slide groove 400.

[0117] like Fig.11 (a) and Fig.11 As shown in (b), in some embodiments, the first limiting structure 300 is located inside the door panel 100.

[0118] The first limiting 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 inside of the door panel 100 and the second surface 102 being recessed toward the inside of the door panel 100, and 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 the same as that of the first fixing groove 312, and will not be repeated here.

[0119] like Fig.11 As shown in (c), plastic is injected on the first limiting structure 300 to form the lower auxiliary slide groove 400 in the B area.

[0120] 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 groove 400 and the first limiting structure 300, which can not only accurately position the lower auxiliary slide groove 400 and stably fix the lower auxiliary slide groove 400, but also improve the strength of the lower auxiliary slide groove 400.

[0121] Fig.12 This is a schematic diagram of glue pulling in area B provided in an embodiment of the present application.

[0122] like Fig.11 (a) and Fig.12 As shown, in some embodiments, the B region adopts a three-layer glue structure, and the three-layer structure is distributed in the z-axis direction, namely, lower plastic-door panel 100-lower plastic. The three-layer structure is used to achieve x / y / z axial glue limiting of the lower plastic, which can improve the stability, strength and position accuracy of the lower slide 400.

[0123] Fig.13 4 is a schematic diagram of the structure of the lower auxiliary chute 400 in the B area provided by the embodiment of the present application. Fig.13 (a) and Fig.13 (b) shows the structure of the lower auxiliary chute 400 from different viewing angles.

[0124] like Fig.11 Middle (a), Fig.13 (a) and Fig.13 As shown in (b), in some embodiments, the low auxiliary slide 400 may include: a second low auxiliary glue pulling structure 421, a second fixing seat 422 and a second slide seat 423;

[0125] By injection molding and glue drawing, the low-side plastic is injected into the recessed hole 321 to form a second low-side glue drawing structure 421. The low-side plastic is injected into the second fixing groove 322 to form a second fixing seat 422. The second low-side glue drawing structure 421 and the second fixing seat 422 are staggered in the y-axis direction, and a staggered area is formed between the two. The low-side plastic is injected into the staggered area, and a first height is injected along the first surface 101 toward the second direction to form a second slide seat 423, and the second slide seat 423 is used to connect with the connecting block of the rotating shaft mechanism. Among them, the first height meets the connection requirements of the second slide seat 423 and the connecting block.

[0126] The second slide seat 423 is connected to the second lower auxiliary glue structure 421 and the second fixing seat 422, which can improve the strength of the lower auxiliary slide 400. The second direction is the thickness direction of the door panel 100, that is, the second direction is the z-axis direction.

[0127] The lower auxiliary chute 400 in the B area is embedded in the door panel 100 through the second lower auxiliary glue structure 421 and the second fixing seat 422 to improve the bonding force between the lower auxiliary chute 400 and the first limiting structure 300. The first limiting structure 300 is subjected to three-layer glue pulling through the recessed hole 321, so that the lower auxiliary chute 400 has a corresponding glue pulling structure. In this way, not only the stability of the lower auxiliary chute 400 and the door panel 100 can be improved, the strength of the door panel 100 and the lower auxiliary chute 400 can be improved, but also the position accuracy of the lower auxiliary chute 400 can be improved.

[0128] Fig.14 yes Fig.11 Schematic diagram of the structure of the BB section in (c).

[0129] like Fig.14 As shown in (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 inside of the door panel 100 by a first depth h1, and the second groove 3212 is recessed from the second surface 102 of the door panel 100 to the inside by a second depth h2. The first groove 3211 and the second groove 3212 are connected through 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 .

[0130] 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.

[0131] like Fig.14 As shown in (b), 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 groove seat 423 is injection molded above the first layer structure 4211.

[0132] By injection molding and glue drawing, low-copper 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 can be formed in the first groove 3211, a second layer structure 4212 can be formed in the through hole 3213, and a third layer structure 4213 can be formed in the second groove 3212.

[0133] 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 .

[0134] 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 groove 400 and the first limiting structure 300, thereby improving the position accuracy of the lower auxiliary slide groove 400, but also improve the strength of the door panel 100 and the lower auxiliary slide groove 400.

[0135] Fig.15 yes Figure 4 Schematic diagram of the structural decomposition of the C region. Fig.15 (a) is a structure in which the first limiting structure 300 is located on the first surface 101 of the door panel 100; Fig.15 (b) is a structure in which the first limiting structure 300 is located on the second surface 102 of the door panel 100; Fig.15 (c) is a schematic diagram of the combination of the first limiting structure 300 and the lower auxiliary slide groove 400.

[0136] like Fig.15 (a) and Fig.15 As shown in (b), in some embodiments, the first limiting structure 300 is located inside the door panel 100.

[0137] The first limiting structure 300 includes a first shaped hole 331, a second shaped hole 332 and a third fixing groove 333. The first shaped hole 331 and the second shaped hole 332 are staggered in a stepped structure along the second direction (z-axis direction). The first shaped hole 331 can be a stepped structure, and the second shaped hole 332 can be a stepped structure.

[0138] 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.

[0139] like Fig.15 As shown in (c), plastic is injected on the first limiting structure 300 to form the lower auxiliary slide groove 400 in the C area.

[0140] Fig.16 This is a schematic diagram of glue pulling in the C area provided in an embodiment of the present application.

[0141] like Fig.15 (a) and Fig.16As shown, in some embodiments, the first special-shaped hole 331 and the second special-shaped hole 332 form two groups of staggered stepped structures. The two groups of staggered stepped structures are used to pull glue, and the two groups of staggered stepped structural features can completely limit the x / y / z direction of the glue pulling. This glue pulling method can achieve two layers of meat thickness for glue pulling (low-ply plastic-door panel). Compared with the common three-layer meat thickness glue pulling characteristics, the embodiment of the present application can save a layer of meat thickness in the z-axis direction. Exemplarily, 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 then reduce the thickness of the door panel assembly 50.

[0142] Fig.17 Schematic diagram of the structure of the low auxiliary chute 400 in the C area provided by the embodiment of the present application. Fig.17 (a) and Fig.17 (b) shows the structure of the lower auxiliary chute 400 from different viewing angles.

[0143] like Fig.15 Middle (a), Fig.17 (a) and Fig.17 As shown in (b), in some embodiments, the lower auxiliary slide groove 400 may include: a third lower auxiliary glue pulling structure 431, a third fixing seat 432 and a third slide groove seat 433.

[0144] By injection molding and glue drawing, the 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.

[0145] The lower plastic is injected into the third fixing groove 333 to form a third fixing seat 432. The third lower plastic pull structure 431 and the third fixing seat 432 are staggered in the y-axis direction, and a staggered area is formed between the two. The lower plastic is injected in the staggered area, and a second height is injected along the first surface 101 toward the second direction (z-axis direction) to form a third slide seat 433, and the third slide seat 433 is used to connect with the connecting block of the rotating shaft mechanism. Among them, the second height meets the connection requirements of the third slide seat 433 and the connecting block.

[0146] The third slide groove seat 433 is connected to the third lower auxiliary glue pulling structure 431 and the third fixing seat 432 , so as to improve the strength of the lower auxiliary slide groove 400 .

[0147] In some embodiments, the third low-sub plastic pull 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-sub plastic injection molding in the first special-shaped hole 331, and the second special-shaped structure 4312 is formed by low-sub plastic injection molding in the second special-shaped hole 332. In this way, the first special-shaped structure 4311 is a step-shaped structure along the x-axis direction, the second special-shaped structure 4312 is a step-shaped structure along the x-axis direction, and a step-shaped structure along the y-axis direction is formed between the first special-shaped structure 4311 and the second special-shaped structure 4312.

[0148] The lower auxiliary chute 400 in the C region is embedded in the door panel 100 through the third lower auxiliary glue structure 431 and the third fixing seat 432 to improve the bonding force between the lower auxiliary chute 400 and the first limiting structure 300. The first limiting structure 300 is glued in a stepped manner through the first special-shaped hole 331 and the second special-shaped hole 332, so that the lower auxiliary chute 400 has a corresponding stepped glue structure. In this way, not only the stability of the lower auxiliary chute 400 and the door panel 100 can be improved, the strength of the door panel 100 and the lower auxiliary chute 400 can be improved, but also the position accuracy of the lower auxiliary chute 400 can be improved.

[0149] The door panel assembly 50 provided in the embodiment of the present application includes: a door panel 100, N high auxiliary chutes 200, M first limiting structures 300 and M low auxiliary chutes 400. The N high auxiliary chutes 200 and the door panel 100 can be made of high-strength materials and integrally formed, which can not only reduce the thickness of the door panel 100 while having higher strength, but also improve the strength of the door panel 100 and the N high auxiliary chutes 200, and improve the position accuracy of the N high auxiliary chutes 200. The M low auxiliary chutes 400 are injection-molded on the M first limiting structures 300, and based on different first limiting structures 300, the M low auxiliary chutes 400 have different structures of glue pulling structures. The glue pulling structure can improve the bonding strength of the M low auxiliary chutes 400 and the M first limiting structures 300, thereby improving the strength of the M low auxiliary chutes 400 and the door panel 100, and improving the position accuracy of the M low auxiliary chutes 400.

[0150] Fig.18 This is the fourth structural schematic diagram of the door panel assembly 50 provided in the embodiment of the present application. Fig.19 This is the fifth structural schematic diagram of the door panel assembly 50 provided in the embodiment of the present application.

[0151] like Fig.18 and Fig.19As shown, in some embodiments, in the door panel assembly 50 provided in the embodiment of the present application, taking the M+N motion auxiliary chutes including M high auxiliary chutes 200 and N low auxiliary chutes 400 as an example, along the first direction, the M high auxiliary chutes 200 and the N low auxiliary chutes 400 are spaced apart and located on the first surface 101. The M high auxiliary chutes 200 and the door panel 100 may not be integrally formed, the M high auxiliary chutes 200 may be combined with the door panel 100 in the form of metal inserts, and the N low auxiliary chutes 400 may be integrally formed with the door panel 100. Exemplarily, N may be 8, and M may be 6.

[0152] Fig. 20A This is the fourth structural schematic diagram of the door panel assembly 50 provided in the embodiment of the present application. Fig. 20B yes Fig. 20A A structural diagram from another perspective. Fig. 20A The structure of the high auxiliary chute 200 is not shown.

[0153] like Fig. 20A and Fig. 20B As shown, in some embodiments, the limiting structure may include: 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. Exemplarily, the M second limiting structures 500 may be integrally formed with the door panel 100.

[0154] The number of the M second limiting structures 500 is the same as the number of the M high auxiliary chutes 200, and 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. Exemplarily, the material of the high auxiliary chutes 200 can be a metal material such as stainless steel or titanium alloy, and the high auxiliary chutes 200 can be pre-formed as metal inserts.

[0155] Fig.21 yes Fig. 20A Schematic diagram of the structural decomposition of the E region. Fig.21 (a) is a structure in which the second limiting structure 500 is located on the first surface 101 of the door panel 100; Fig.21 (b) is a structure in which the second limiting structure 500 is located on the second surface 102 of the door panel 100; Fig.21 (c) is a schematic diagram of the combination of the second limiting structure 500 and the high auxiliary slide groove 200.

[0156] like Fig.21 (a) and Fig.21 As shown in (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 length direction.

[0157] 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.

[0158] The third groove 501, the first special-shaped groove 502 and the second special-shaped groove 503 are recessed from the first surface 101 to the inside 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.

[0159] like Fig.21 As shown in (c), the second limiting structure 500 is combined with the high auxiliary slide groove 200 to obtain Fig.18 and Fig.19 The door panel assembly 50 is shown.

[0160] In this way, the high auxiliary slide groove 200 can have a rubber pulling structure adapted to the second limiting structure 500 to improve the bonding force between the high auxiliary slide groove 200 and the second limiting structure 500, which can not only accurately position the high auxiliary slide groove 200 and stably fix the high auxiliary slide groove 200, but also improve the strength of the high auxiliary slide groove 200.

[0161] Fig. 22 Schematic diagram of the structure of the high auxiliary chute 200 and the first special-shaped groove 502 provided in the embodiment of the present application. Fig. 22 (a) is a cross-sectional view of the first special-shaped groove 502 along the y-axis direction.

[0162] like Fig.21 and Fig. 22 As shown in (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 taken as an example for description below.

[0163] 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: Fig. 22 The dotted lines in (a) are only used to exemplify 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.

[0164] The upper groove 5021 is recessed from the first surface 101 to the inside of the door panel 100 by a third depth h3, the lower groove 5023 is recessed from the second surface 102 of the door panel 100 to the inside 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 h4 of the door panel 100. 100 .

[0165] The number of the connecting grooves 5022 includes two, and the number of the lower grooves 5023 includes two. Both sides of the upper groove 5021 along the y-axis direction are respectively connected to a connecting groove 5022, and each connecting groove 5022 is connected to a lower groove 5023, and the lower groove 5023 is away from the upper groove 5021 along the y-axis direction relative to the corresponding connecting groove 5022. In this way, the two ends of the first special-shaped groove 502 along the y-axis direction can form a structure that is stepped downward from the first surface 101 to the second surface 102.

[0166] like Fig.21 and Fig. 22 As shown in (b), in some embodiments, the high auxiliary slide groove 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 groove seat 205.

[0167] 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.

[0168] The fourth slide slot seat 205 is located between the first high-side glue pulling structure 202 and the second high-side glue pulling structure 203, and is located on the surface of the third high-side glue pulling structure 204 along the z-axis direction. The fourth slide slot seat 205 is injection-molded at a third height relative to the first surface 101 along the z-axis direction. The fourth slide slot seat 205 may also include a slide slot 201, and the slide slot 201 is used to connect with the main swing arm 46 and / or the auxiliary swing arm 47 in the rotating shaft mechanism 40. Among them, the third height meets the connection requirements of the fourth slide slot seat 205 and the main swing arm 46 and / or the auxiliary swing arm 47 in the rotating shaft mechanism 40.

[0169] 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 .

[0170] The structures of the first high-sub adhesive pull structure 202 and the second high-sub adhesive pull structure 203 are the same, and the structure of the first high-sub adhesive pull structure 202 is taken as an example for description below.

[0171] The first high-sub glue-drawing structure 202 may include an upper structure 2021, a supporting structure 2022, and a lower structure 2023. The length direction of the upper structure 2021 is the same as the y-axis direction, the length direction of the supporting structure 2022 is the same as the z-axis direction, and the length direction of the lower structure 2023 is the same as the y-axis direction. The upper structure 2021 is connected to the lower structure 2023 through the supporting structure 2022.

[0172] The number of the supporting structures 2022 includes two, and the number of the lower structures 2023 includes two. The upper structure 2021 is connected to a supporting structure 2022 on both sides along the y-axis direction, each supporting structure 2022 is connected to a lower structure 2023, and the lower structure 2023 is away from the upper structure 2021 along the y-axis direction relative to the corresponding supporting structure 2022. In this way, the two ends of the first high-sub glue-drawing structure 202 along the y-axis direction can form a structure that is stepped downward from the first surface 101 to the second surface 102.

[0173] When the second limiting structure 500 is combined with the high auxiliary slide groove 200, the third high auxiliary glue pulling structure 204 is embedded in the third groove 501, the upper structure 2021 of the first high auxiliary glue pulling structure 202 is embedded in the upper groove 5021 of the first special-shaped groove 502, the supporting structure 2022 is embedded in the connecting groove 5022, and the lower structure 2023 is embedded in the lower groove 5023. Similarly, the second high auxiliary glue pulling structure 203 is embedded in the second special-shaped groove 503. Exemplarily, 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. In this way, the high auxiliary slide groove 200 can be prevented from affecting other structural parts on the door panel 100.

[0174] The first high-sub rubber 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.

[0175] The door panel assembly 50 provided in the embodiment of the present application includes: a door panel 100, M high auxiliary chutes 200, N low auxiliary chutes 400 and M second limiting structures 500. The N low auxiliary chutes 400 and the door panel 100 can be made of metal materials or polymer materials with a certain high strength, and can also be integrally formed, which can not only reduce the thickness of the door panel 100 while having higher strength, but also improve the strength of the door panel 100 and the N low auxiliary chutes 400, and improve the position accuracy of the N low auxiliary chutes 400. The M high auxiliary chutes 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 chutes 200 have a corresponding stepped glue pulling structure. The stepped glue structure can improve the bonding strength between the M high auxiliary slide grooves 200 and the M second limiting structures 500, thereby improving the strength of the M high auxiliary slide grooves 200 and the door panel 100 and improving the position accuracy of the M high auxiliary slide grooves 200.

[0176] In some embodiments, the door panel assembly 50 may include a first limiting structure 300 and a second limiting structure 500 at the same time. In this way, the door panel 100 and the high auxiliary slide 200, as well as the door panel 100 and the low auxiliary slide 400 are not formed in an integrated manner. The first limiting structure 300 and the second limiting structure 500 are processed on the door panel 100, the low auxiliary slide 400 is injection molded on the first limiting structure 300, and the high auxiliary slide 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, which will not be repeated here.

[0177] Fig.23 This is the first flow chart of the method for manufacturing a door panel assembly provided in an embodiment of the present application. Fig.24 This is the first process flow chart of the method for manufacturing a door panel assembly provided in an embodiment of the present application.

[0178] like Fig.23 As shown, in some embodiments, the method for manufacturing the door panel assembly is used to manufacture the aforementioned Figures 4 to 17 The door panel assembly 50 provided in any embodiment. The method may include the following steps S101 to S103:

[0179] Step S101, providing a first blank and a second blank.

[0180] 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.

[0181] like Fig.24As shown in (a), a raw material metal blank is provided, and a door panel 100 and N high auxiliary slide grooves 200 are integrally formed by 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 slide grooves 200. The metal blank can be made of metal materials such as stainless steel or titanium alloy.

[0182] Step S102 , processing a door panel 100 , N high auxiliary slide grooves 200 and M first limiting structures 300 on a first blank.

[0183] like Fig.24 As shown in (b), the first blank is CNC machined to produce high-precision features such as the shape of the door panel 100, the end faces of the M first limiting structures 300 and the N high-side chute 200. The structure of the high-side chute 200 can be referred to Figure 6 The structure shown is not described in detail here.

[0184] Along the 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.

[0185] The first limiting structure 300 may include three structures. The specific structural forms can be referred to Fig. 9 , Fig.11 and Fig.15 The contents shown are not repeated here.

[0186] Step S103 , injection molding the second blank into the M first limiting structures 300 to form M lower auxiliary slide grooves 400 , thereby obtaining a door panel assembly 50 .

[0187] like Fig.24 As shown in (c), plastic is injection molded into different first limiting structures 300, and glue is drawn on the first limiting structures 300 to obtain the lower auxiliary chute 400, and different lower auxiliary chute 400 have different glue drawing structures.

[0188] It should be noted that the present embodiment of the present application discloses the structural characteristics and effects of the door panel assembly 50 in a relatively brief manner, and the corresponding contents can be referred to in the aforementioned Figures 4 to 17 The content of the corresponding embodiment is sufficient and will not be repeated here.

[0189] The manufacturing method of the door panel assembly 50 provided in the embodiment of the present application adopts an integrated design and secondary molding to combine two materials to realize an integrated solution of the door panel 100. The main body of the door panel 100 and the N high auxiliary slide grooves 200 of the door panel assembly 50 are molded with the same material, which can ensure the strength of the door panel 100 and the N high auxiliary slide grooves 200 and improve the position accuracy of the N high auxiliary slide grooves 200. The thickness of the door panel 100 and the wall thickness of the N high auxiliary slide grooves 200 can also be reduced to reduce the thickness space occupied by the door panel assembly 50 in the rotating shaft mechanism, which is conducive to the thinness of the electronic device including the rotating shaft mechanism. The M low auxiliary slide grooves 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 slide grooves 400; the M low auxiliary slide grooves 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 slide grooves 400.

[0190] Fig.25 This is the second flow chart of the method for manufacturing a door panel assembly provided in an embodiment of the present application.

[0191] like Fig.25 As shown, in some embodiments, the method for manufacturing the door panel assembly is used to manufacture the aforementioned Figures 18 to 22 The door panel assembly 50 provided in any embodiment. The method may include the following steps S201 to S202:

[0192] Step S201, providing a door panel and M high auxiliary slide grooves.

[0193] The door panel member includes a door panel 100, N low auxiliary slide grooves 400 and M second limiting structures 500. Along a first direction, the N low auxiliary slide grooves 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 inside of the door panel 100, and the first direction is the length direction of the door panel 100.

[0194] In the door panel, the door panel 100 and the N low auxiliary slide grooves 400 can be integrally formed using metal materials such as stainless steel or titanium alloy; the door panel 100 and the N low auxiliary slide grooves 400 can also be integrally formed using an amorphous molding method.

[0195] The M high auxiliary slide grooves 200 can be made of metal materials such as stainless steel or titanium alloy and formed by MIM molding.

[0196] Step S202, fixing M high auxiliary slide grooves on the door panel, the M high auxiliary slide grooves correspond to the M second limiting structures one by one and form an embedded structure to obtain a door panel assembly.

[0197] There are two ways to combine the M high auxiliary slide grooves 200 with the door panel: embedding the M high auxiliary slide grooves 200 into the door panel, or embedding the door panel into the M high auxiliary slide grooves 200.

[0198] Fig.26 This is the second process flow chart of the method for manufacturing a door panel assembly provided in an embodiment of the present application.

[0199] like Fig.26 As shown in (a), in some embodiments, when the door panel is embedded in M ​​high auxiliary slide grooves 200, M high auxiliary slide grooves 200 are provided. The M high auxiliary slide grooves 200 are arranged at preset intervals, and the structure of the high auxiliary slide grooves 200 can be adopted. Fig. 22 The high auxiliary chute 200 can be made of metal materials such as stainless steel or titanium alloy and formed by MIM molding.

[0200] like Fig.26 As shown in (b), 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, thereby obtaining a door panel assembly 50.

[0201] Here, the door panel 100 in the door panel part 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 material. The amorphous molding method can realize the integrated molding of different materials.

[0202] Fig. 27 This is the third process flow chart of the method for manufacturing a door panel assembly provided in an embodiment of the present application.

[0203] like Fig. 27 As shown in (a), in some embodiments, when the method of embedding M high auxiliary slide grooves 200 into the door panel is adopted, a door panel and M high auxiliary slide grooves 200 are provided.

[0204] 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.

[0205] The M high auxiliary chutes 200 can be made of metal materials such as stainless steel or titanium alloy and formed by MIM forming. In this way, two metal inserts, namely the door panel and the high auxiliary chutes 200 inserts, can be obtained.

[0206] like Fig. 27 As shown in (b), in some embodiments, M high auxiliary slide grooves 200 are embedded in M ​​second limiting structures 500 of the door panel to form an embedded structure, thereby obtaining a door panel assembly 50.

[0207] It should be noted that the present embodiment of the present application discloses the structural characteristics and effects of the door panel assembly 50 in a relatively brief manner, and the corresponding contents can be referred to in the aforementioned Figures 18 to 22 The content of the corresponding embodiment is sufficient and will not be repeated here.

[0208] The manufacturing method of the door panel assembly 50 provided in the embodiment of the present application adopts an integrated design and secondary molding to combine two materials to realize an integrated solution of the door panel 100. The main body of the door panel 100 and the N low auxiliary chutes 400 of the door panel assembly 50 are integrally molded with the same material or different materials, which can ensure the strength of the door panel 100 and the strength of the N low auxiliary chutes 400 and improve the position accuracy of the N low auxiliary chutes 400. The thickness of the door panel 100 and the wall thickness of the N low auxiliary chutes 400 can also be reduced to reduce the thickness space occupied by the door panel assembly 50 in the rotating shaft mechanism, which is conducive to the thinness of the electronic device including the rotating shaft mechanism. The M high auxiliary slide grooves 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 slide grooves 200; and the M high auxiliary slide grooves 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 slide grooves 200.

[0209] It should be noted that those skilled in the art will readily come up with other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope of the present application is indicated by the following claims.

[0210] It should be understood that the present application is not limited to the precise structures that have been 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, applied to an electronic device, wherein the electronic device includes a screen, characterized in that: include: A door panel (100) comprises a first surface (101), wherein the first surface (101) is away from the screen, and 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 assembled 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-sub glue-pulling structure (411) is assembled on the base (311) and in at least one of the through holes (313), and the first low-sub glue-pulling structure (411) includes at least one fixing column (414) formed at at least one of the through holes (313); The first slide groove seat (413) is assembled on the top of the side surface of the first lower secondary glue pulling structure (411) and has a first width along the first direction; The first fixing seat (412) is assembled 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 adhesive pulling structure (421) is assembled in the recessed hole (321); The second fixing seat (422) is assembled in the second fixing groove (322); The second slide groove seat (423) is connected to the second lower adhesive pulling structure (421) and the second fixing seat (422), and has a first height along the first surface (101) toward the 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 assembled in the first groove (3211), the second layer structure (4212) is assembled in the through hole (3213), and the third layer structure (4213) is assembled 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 assembled 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 assembled in the third fixing groove (333); The third sliding groove seat (433) is connected to the third lower adhesive pulling structure (431) and the third fixing seat (432), and has 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 groove seat (205) is located on the third high-side glue-pulling structure (204) and has a third height relative to the first surface (101) along the second direction; 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-sub 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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