Structural components and foldable terminals

Abstract

An embodiment of the present application provides a structural component and a foldable terminal, which can reduce the thickness of the foldable terminal. The structural component includes at least two fuselages and a rotating shaft structure connecting two adjacent fuselages; each fuselage includes a middle frame and a housing, the middle frame includes a support member; the housing is disposed on the support member; the rotating shaft structure includes a shaft cover and a swing arm; the swing arm includes a rotating portion and a connecting portion; the rotating portion is connected to the shaft cover, and the connecting portion is connected to the support member. The swing arm is configured to be rotatable about the axis of the rotating shaft structure so that the two fuselages can be folded or unfolded about the axis; a hollow portion is provided on the support member of at least one fuselage; when the two fuselages are in the unfolded state, the hollow portion exposes at least the highest part of the shaft cover, and the highest part of the shaft cover is the part closest to the housing among the parts where the shaft cover overlaps with the housing; and / or when the two fuselages are in the folded state, the hollow portion exposes at least the highest part of the rotating portion, and the highest part of the swing arm is the part closest to the housing among the parts where the swing arm overlaps with the housing.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a structural component and a foldable terminal. Background Art

[0002] With the continuous development of display technology, foldable terminals (such as foldable mobile phones) have gradually become a development trend of future mobile electronic products. When the foldable terminal is unfolded, it can obtain a larger display area and improve the visual effect. When the foldable terminal is folded, it can obtain a smaller volume, which is convenient for users to carry. Therefore, foldable terminals are gradually favored by more and more users. However, the current foldable terminals have the problem of being thick. Summary of the invention

[0003] In order to solve the above technical problems, the present application provides a structural component and a foldable terminal, which can reduce the thickness of the foldable terminal.

[0004] In a first aspect, an embodiment of the present application provides a structural assembly, which includes: at least two fuselages and a rotating shaft structure connecting two adjacent fuselages; the fuselage includes a middle frame and an outer shell, the middle frame includes a support member; the support member includes a first surface and a second surface opposite to each other, and the outer shell is arranged on the first surface; the rotating shaft structure includes a shaft cover and a swing arm, the shaft cover and the swing arm are located on the side of the second surface away from the first surface; the swing arm includes a rotating part and a connecting part; the rotating part of the swing arm is connected to the shaft cover, the connecting part of the swing arm is connected to the support member, and the swing arm is configured to be rotatable around the axis of the rotating shaft structure to The two fuselages are folded or unfolded around an axis; wherein a hollow portion is provided on a support member of at least one fuselage; when the two fuselages are in an unfolded state, the hollow portion at least exposes the highest portion of the shaft cover, which is the portion closest to the shell in the portion where the shaft cover overlaps with the shell along a direction perpendicular to the first direction; and / or, when the two fuselages are in a folded state, the hollow portion at least exposes the highest portion of the rotating portion, which is the portion closest to the shell in the portion where the rotating portion overlaps with the shell along a direction perpendicular to the first direction; the first direction is a direction perpendicular to the shell.

[0005] By making a hole design at the minimum wall thickness position of the support, the minimum wall thickness of the support changes from the minimum wall thickness to zero, avoiding the problem of thick thickness of the foldable phone due to the need to retain the minimum wall thickness of the support when the foldable phone is in different states, and achieving the effect of thinning the thickness of the foldable phone in both the folded and unfolded states. It has been verified that the foldable terminal can be thinned by 0.2-0.3mm accordingly.

[0006] Exemplarily, the position of the minimum wall thickness of the support member may be the position corresponding to the highest part of the shaft cover in the support member when in the unfolded state, where the highest part of the shaft cover is the part closest to the housing among the overlapping parts of the shaft cover and the housing. That is to say, in the unfolded state, due to the setting of the housing, the support member will sink downward, and due to the setting of the shaft cover and the shaft cover having a relatively high part, the support member will be thinned upward at this position to avoid affecting the shaft cover. The downward sinking and upward thinning of the support member result in the support member having the minimum wall thickness.

[0007] Exemplarily, the position of the minimum wall thickness of the support member may be the position corresponding to the highest part of the rotating part in the support member when in the folded state, where the highest part of the rotating part is the part closest to the housing among the overlapping parts of the swing arm and the housing. That is to say, in the folded state, due to the setting of the housing, the support member will sink downward, and due to the setting of the rotating part and the rotating part having a relatively high part, the support member will be thinned upward at this position to avoid affecting the swing arm. The downward sinking and upward thinning of the support member result in the support member having the minimum wall thickness.

[0008] Exemplarily, the position of the minimum wall thickness of the support member may be the position corresponding to the highest part of the shaft cover (in the unfolded state) and the highest part of the rotating part (in the folded state) in the support member. That is to say, in the unfolded state, the highest part of the shaft cover and in the folded state, the highest part of the rotating part together result in the support member having the minimum wall thickness.

[0009] Exemplarily, the housing may be a battery cover (also known as the rear cover) or a display screen (also known as the outer screen).

[0010] Exemplarily, the number of hollowed-out parts may be one or multiple. When the number of hollowed-out parts is multiple, there is an unhollowed support member between two adjacent hollowed-out parts. For example, when the two fuselages are in the unfolded state and the hollowed-out part at least exposes the highest part of the shaft cover, since the shaft cover extends along the axis, the number of hollowed-out parts may be one, and this hollowed-out part extends along the axis to expose the highest part of the shaft cover. Another example is that when the two fuselages are in the folded state and the hollowed-out part at least exposes the highest part of the rotating part, since the number of rotating parts along the axis can be multiple, hollowed-out parts can be provided at the positions corresponding to the highest part of each rotating part, that is, the number of hollowed-out parts is multiple at this time.

[0011] In some possible implementations, the housing of at least one fuselage includes a display screen, and a cover plate fixedly connected to the display screen is disposed on a side of the display screen facing away from the middle frame; along a second direction, the support member includes a stepped portion and a support portion; a hollowed portion is formed in the support portion; the cover plate is fixed to the stepped portion so that the display screen is located on the support portion; the second direction is a direction perpendicular to the first direction and perpendicular to the axis direction; along the second direction, the hollowed portion includes a first end face and a second end face, and the second end face is located on a side of the first end face facing away from the axis; the structural assembly further includes a first sealing structure and a second sealing structure, and the first sealing structure is filled in a first gap formed between the first end face, the display screen and the cover plate, and the second sealing structure is filled in a second gap formed between the first surface and the display screen.

[0012] With such an arrangement, the gaps at the corresponding positions of the hollowed portion are sealed by the first sealing structure and the second sealing structure, preventing dust and / or liquid from entering the fuselage through the hollowed portion and causing the folding terminal to fail.

[0013] Exemplarily, the display screen is the second display unit in the following embodiments.

[0014] Exemplarily, when the housing includes a rear cover, the rear cover is fixed to the stepped portion by an adhesive so that the adhesive is located on the support portion.

[0015] In some possible implementations, on the basis that the above structural assembly further includes a first sealing structure and a second sealing structure, both the first sealing structure and the second sealing structure include one of soft glue, jelly glue, sealant, etc. Since the first sealing structure and the second sealing structure are relatively soft, it is possible to avoid extrusion of other structures when the sealing structure contacts other structures. For example, when the sealing structure contacts the display screen, it is possible to avoid extrusion of the display screen and affecting the display effect of the display screen. Moreover, when setting the sealing structure, the process steps are relatively simple. In addition, soft glue, jelly glue, sealant, etc. are all set by a dispensing process and then pressed to form the first sealing structure and the second sealing structure. Therefore, when both the first sealing structure and the second sealing structure include one of soft glue, jelly glue, sealant, etc., the sealing effect can be ensured.

[0016] In some possible implementation manners, on the basis that the above structural components further include a first sealing structure and a second sealing structure, the first sealing structure includes one of soft glue, jelly glue, and sealant; the second sealing structure includes back glue. Since the first sealing structure and the second sealing structure are relatively soft, when the sealing structure contacts other structures, it can avoid squeezing other structures. For example, when the sealing structure contacts the display screen, it can avoid squeezing the display screen and affecting the display effect of the display screen. Moreover, when setting the sealing structure, the process steps are relatively simple. In addition, soft glue, jelly glue, sealant, etc. are all set by the dispensing process and then pressed to form the first sealing structure. Therefore, when the first sealing structure includes one of soft glue, jelly glue, sealant, etc., the sealing effect of the first gap formed between the first end face, the display screen, and the cover plate can be ensured. The back glue is set by attachment, the process is simple, and the fitting accuracy between the display screen and the support member can be ensured, thereby ensuring the sealing effect of the second gap formed between the first surface and the display screen.

[0017] In some possible implementation manners, on the basis that the above structural components further include a first sealing structure and a second sealing structure, along a third direction, the shaft cover includes a middle portion and edge portions located on both sides of the middle portion. The edge portion includes a first edge and a second edge. The first edge is the edge in contact with the middle portion, and the second edge is located on the side of the first edge away from the middle portion; from the first edge pointing to the second edge, the height of the edge portion gradually decreases; a convex portion adapted to the edge portion is provided at the position of the support member corresponding to the edge portion, and the first sealing structure and the second sealing structure extend to the position of the convex portion to contact the convex portion; wherein, the third direction is parallel to the axis.

[0018] That is to say, along the axis direction, the height of the edge position of the shaft cover decreases. Correspondingly, the support member will bulge at the position where the height of the shaft cover decreases. In this way, it can avoid the problem that dust and / or liquid enter the fuselage through the gap between the shaft cover and the support member, resulting in the failure of the foldable terminal, and the sealing effect is better.

[0019] In some possible implementation manners, the structural components further include a protective layer for covering the hollow portion. When a structure (protective layer) different from the support member is provided in the hollow portion, a structure with a wall thickness smaller than the minimum wall thickness of the support member can be selected. In this way, the thickness of the whole machine can be reduced, the sealing effect can be achieved, and the strength of the middle frame can be ensured.

[0020] In some possible implementations, based on the above structural components further including a protective layer, along the first direction, the thickness of the protective layer is greater than or equal to 0.05 mm and less than or equal to 0.1 mm, and the thickness of the protective layer is less than the minimum wall thickness of the support member (after being less than the minimum wall thickness, the support member cannot be reliably formed). For example, the minimum wall thickness of the support member can be 0.3 mm. In this way, it can not only ensure the effect of reducing the thickness of the foldable terminal in both the folded state and the unfolded state, but also ensure the strength of the middle frame.

[0021] Exemplarily, the thickness of the protective layer can be, for example, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm or 0.1 mm, etc.

[0022] In some possible implementations, based on the above structural components further including a protective layer, the material of the protective layer includes steel, mylar or plastic, etc. Through the above materials, the thickness of the protective layer can be made less than the minimum wall thickness of the support member, thereby ensuring the effect of reducing the thickness of the foldable terminal in both the folded state and the unfolded state.

[0023] In some possible implementations, based on the above structural components further including a protective layer, the protective layer includes a first part, a second part and a third part connected in sequence; the first part is fixedly connected to the first end face, for example, the first part is fixed to the first end face by welding or bonding, the third part is fixedly connected to the second end face, for example, the third part is fixed to the second end face by welding or bonding, and the second part is used to cover the hollow part to prevent dust and / or liquid from entering the fuselage through the hollow part.

[0024] In some possible implementations, based on the above structural components further including a protective layer, the protective layer includes a first part, a second part and a third part connected in sequence; the third part includes a first sub-part connected to the second part and a second sub-part connected to the first sub-part; the first part is fixed to the first surface connected to the first end face, for example, the first part is fixed to the first surface by welding or bonding, the second part is opposite to the first end face, the first sub-part is used to cover the hollow part, and the second sub-part is fixed to the first surface connected to the second end face, for example, the second sub-part is fixed to the first surface by welding or bonding. That is, the projection of the protective layer on the plane perpendicular to the axis is in a "Z" shape, with a simple structure and can prevent dust and / or liquid from entering the fuselage through the hollow part.

[0025] In some possible implementations, the protective layer includes a first subsection, a second subsection, and a third subsection connected in sequence, the first subsection is parallel to the third subsection, and the second subsection is perpendicular to the first subsection and the third subsection. This arrangement can reduce the gap between the display screen and the first end surface, and avoid a situation where the gap between the display screen and the first end surface is large, which is not conducive to the full screen effect of the external screen.

[0026] In some possible implementations, along the second direction, the hollow portion includes a first end face and a second end face; the second end face is located on the side of the first end face away from the axis; the distance from the first end face to the axis is greater than or equal to 1.5 mm, and the distance from the second end face to the axis is less than or equal to 10 mm. When the distance from the first end face to the axis is too small, and the distance from the second end face to the axis is too large, that is, the width of the hollow portion is wider, affecting the strength of the middle frame; when the distance from the first end face to the axis is too large, and the distance from the second end face to the axis is too small, it will affect the rotation of the shaft structure.

[0027] In some possible implementations, the cross-sectional shape of the hollow portion on a reference plane includes a rectangle or a rounded rectangle, etc., wherein the reference plane is perpendicular to the first direction.

[0028] In the second aspect, an embodiment of the present application provides a foldable terminal, which includes a flexible screen and a structural component as described in the first aspect, and can achieve all the beneficial effects of the first aspect, wherein the structural component is used to support the flexible screen, and when the foldable terminal is folded, the flexible screen is hidden inside the two bodies, thereby achieving the flexible screen being hidden when the foldable terminal is in a folded state to protect the flexible screen, and being presented when the foldable terminal is in an unfolded state without affecting the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of a foldable terminal provided in an embodiment of the present application;

[0030] Figure 2 A side view of a foldable terminal provided by an embodiment of the present application;

[0031] Figure 3 A schematic diagram of the structure of a foldable terminal provided in an embodiment of the present application;

[0032] Figure 4 for Figure 3 A cross-sectional view along the BB' direction;

[0033] Figure 5 A schematic diagram of the structure of a foldable terminal provided in an embodiment of the present application;

[0034] Figure 6 for Figure 5 A cross-sectional view along the CC' direction;

[0035] Figure 7 Another sectional view along the BB' direction; Figure 3 Figure 5 is another sectional view along the BB' direction;

[0036] Figure 8 Figure 9 is an exploded view of a foldable terminal provided by an embodiment of the present application;

[0037] Figure 9 Another; Figure 8 Figure 15 is a partially enlarged view of the MM region in Figure 14;

[0038] Figure 10 Figure 19 is a schematic structural diagram of a shaft cover provided by an embodiment of the present application;

[0039] Figure 11 Another; Figure 5 Figure 25 is another sectional view along the CC' direction;

[0040] Figure 12 Figure 29 is a positional relationship diagram of a support member, a swing arm and a shaft cover provided by an embodiment of the present application;

[0041] Figure 13 Figure 33 is another positional relationship diagram of a support member, a swing arm and a shaft cover provided by an embodiment of the present application;

[0042] Figure 14 Another; Figure 3 Figure 39 is a sectional view along the FF' direction;

[0043] Figure 15 Another; Figure 3 Figure 45 is another sectional view along the FF' direction;

[0044] Figure 16 Figure 49 is an exploded view of a second support member and a protective layer provided by an embodiment of the present application;

[0045] Figure 17 Another; Figure 3 Figure 55 is another sectional view along the FF' direction;

[0046] Figure 18 Another; Figure 3 Figure 61 is another sectional view along the FF' direction;

[0047] Figure 19 Figure 65 is a schematic structural diagram of a second support member and a shaft cover provided by an embodiment of the present application;

[0048] Figure 20 Another; Figure 3 Figure 71 is a sectional view along the GG' direction.

[0049] Reference numerals:

[0050] 10 - First display unit;

[0051] 20 - First body; 21 - First outer shell; 22 - First middle frame; 221 - First support member;

[0052] 30 - Second body; 31 - Second outer shell; 32 - Second middle frame; 311 - Cover plate; 321 - Second support member; 321a - First surface; 321b - Second surface; 321c - Step portion; 321d - Support portion; 321e - Protrusion portion; 322 - Hollow portion; 322a - First end face; 322b - Second end face;

[0053] 40 - Rotating shaft structure; 41 - Shaft cover; 42 - First swing arm; 43 - Second swing arm; 44 - Swing arm chute; 411 - Straight portion; 412 - Bent portion; 413 - Intermediate portion; 414 - Edge portion; 431 - Rotating portion; 432 - Connecting portion;

[0054] 50 - First sealing structure;

[0055] 60 - Second sealing structure;

[0056] 70 - Protective layer; 71 - First sub - part; 72 - Second sub - part; 73 - Third sub - part; 731 - First sub - portion; 732 - Second sub - portion;

[0057] 100 - Foldable terminal. Detailed implementation manners

[0058] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts fall within the scope of protection of the present application.

[0059] The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone.

[0060] The terms "first" and "second" in the description and claims of the embodiments of the present application are used to distinguish different objects, rather than to describe the specific order of the objects. For example, the first target object and the second target object are used to distinguish different target objects, rather than to describe the specific order of the target objects.

[0061] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0062] In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" refers to two or more. For example, a plurality of processing units refers to two or more processing units; a plurality of systems refers to two or more systems.

[0063] The embodiments of the present application provide a foldable terminal. The foldable terminal provided by the embodiments of the present application may be a mobile phone, a tablet computer, a personal digital assistant (PDA for short), an in-vehicle computer, a television, a smart wearable device, a smart home device, etc. The embodiments of the present application do not make special limitations on the specific form of the above-mentioned foldable terminal. For the convenience of description below, the foldable terminal is taken as a foldable mobile phone as an example for illustration.

[0064] It should be noted that, for the convenience of clearly describing the subsequent structural features and the positional relationship of the structural features, the positional relationship of each structure in the foldable mobile phone is defined by the X-axis direction, the Y-axis direction, and the Z-axis direction. Among them, the X-axis direction (also referred to as the second direction) is the width direction after the foldable mobile phone is unfolded, the Y-axis direction (also referred to as the third direction) is the length direction after the foldable mobile phone is unfolded, and the Z-axis direction (also referred to as the first direction) is the thickness direction after the foldable mobile phone is unfolded.

[0065] See Figure 1 , the foldable mobile phone 100 includes a first display unit (also referred to as an inner screen or a flexible screen) 10.

[0066] The first display unit 10 is, for example, a flexible display screen. The first display unit 10 includes, for example, an Organic Light Emitting Diode (OLED) display screen. The OLED display screen does not require a backlight module, and the substrate in the OLED display screen can, for example, adopt a flexible resin material, such as Polyethylene terephthalate (PET), so that the OLED display screen has the characteristic of being bendable. Of course, the type of the first display unit 10 includes but is not limited to the OLED display screen, and any display screen that can achieve bending is within the protection scope of the present application.

[0067] Continue to see Figure 1, the foldable mobile phone 100 further includes a structural component. The structural component includes a first body 20, a second body 30, and a rotating shaft structure 40 located between the first body 20 and the second body 30. The rotating shaft structure 40 is respectively connected to the first body 20 and the second body 30. The first body 20, the rotating shaft structure 40, and the second body 30 can be used to carry the first display unit 10. The first body 20 and the second body 30 can respectively rotate around the axis S0 of the rotating shaft structure 40 to realize states such as folding or unfolding of the first display unit 10, that is, to realize states such as folding or unfolding of the foldable mobile phone 100.

[0068] Figure 1 The figure shows a schematic diagram of the foldable mobile phone after unfolding. Figure 2 The figure shows a schematic diagram of the foldable mobile phone when folded. Figure 2 In, when the foldable mobile phone 100 is folded, it can be folded in the light-emitting direction of the first display unit 10 ( Figure 2 the direction indicated by the arrow in), that is, the direction in which the first body 20 and the second body 30 rotate around the axis S0 is the same as the light-emitting direction of the first display unit 10. After the foldable mobile phone is folded, the first display unit 10 is hidden inside the first body 20 and the second body 30, thereby realizing that the first display unit 10 is hidden in the folded state of the foldable mobile phone 100 to protect the first display unit 10 and presented in the unfolded state of the foldable mobile phone 100 without affecting the display effect.

[0069] It should be noted that the foldable mobile phone 100 can be folded at multiple positions. Correspondingly, the structural component can include multiple rotating shaft structures 40 and multiple bodies. For example, it can include two rotating shaft structures 40 and three bodies, and adjacent two bodies are connected by a rotating shaft structure 40. In this way, the foldable mobile phone 100 has two folding positions. It can be seen that the structural component includes at least one rotating shaft structure 40 and at least two bodies, and adjacent two bodies are connected by a rotating shaft structure 40. For the convenience of description, the embodiments of the present application are all described by taking the structural component including one rotating shaft structure 40 and two bodies (that is, the first body 20 and the second body 30) as an example.

[0070] See Figure 3 and Figure 4 , the first body 20 includes a first outer shell 21 and a first middle frame 22. The second body 30 includes a second outer shell 31 and a second middle frame 32.

[0071] Here, it should be noted that in order to more clearly show the inventive points of the present solution, Figure 4 only the structures related to the inventive points are shown in the figure, rather than all structures. The same applies to the following figures, and the following content will not be repeated.

[0072] The first housing 21 can be the rear cover (also known as the battery cover) of the foldable mobile phone 100; it can also be a display unit for display, and the embodiments of the present application do not limit this. The second housing 31 can be the rear cover (also known as the battery cover) of the foldable mobile phone; it can also be a display unit for display, and the embodiments of the present application do not limit this. In the embodiments of the present application, the first housing 21 is taken as the rear cover and the second housing 31 is taken as the display unit (also known as the second display unit or the outer screen or the display screen to distinguish from the above-mentioned first display unit 10) as an example for illustration.

[0073] The second display unit 31 includes, for example, a display screen of a type such as an Organic Light Emitting Diode (OLED) display screen. In some embodiments, structures such as a cover plate 311 for protecting the second display unit 31 are provided on the second display unit 31.

[0074] The first middle frame 22 includes a first appearance member (the structure exposed on the outside in the first middle frame 22, where Figure 4 is not shown) and a first support member 221 located between the first display unit 10 and the rear cover 21.

[0075] The second middle frame 32 includes a second appearance member (the structure exposed on the outside in the second middle frame 32, where Figure 4 is not shown) and a second support member 321 located between the first display unit 10 and the second display unit 31.

[0076] The first display unit 10, the rear cover 21, the first appearance member, the second display unit 31, and the second appearance member enclose an accommodation space. Structures such as a printed circuit board, a flexible circuit board, functional devices, and a battery ( Figure 4 not shown) are provided in the accommodation cavity. Among them, the functional devices include, for example, a display driving module, a camera, etc. The structures in the accommodation cavity are supported by the first support member 221 of the first middle frame 22 and the second support member 321 of the second middle frame 32. Exemplarily, the rear cover 21 can be fixed to the first support member 221 through the rear cover adhesive 211 to support the rear cover 21 through the first support member, and the second display unit 31 can be fixed to the second support member 321 through an adhesive (not shown in the figure) to support the second display unit 31 through the second support member 321.

[0077] It should be noted here that the related drawings of the first support member 221 and the second support member 321 in the embodiments of the present application are simplified structural schematic diagrams. The first support member 221 and the second support member 321 are not limited to the structures in the figure, and the first support member 221 and the second support member 321 can be adaptively adjusted according to the positions of the structures provided in the accommodation cavity.

[0078] Continue to refer toFigure 4 , the rotating shaft structure 40 may include, for example, a shaft cover 41, a first swing arm 42, a second swing arm 43, and a swing arm chute 44. One end of the first swing arm 42 is rotatably connected to the shaft cover 41 through the swing arm chute 44, and the other end extends towards the accommodating cavity formed by the first display unit 10, the rear cover 21, and the first appearance member, and is connected to the first support member 221. One end of the second swing arm 43 is rotatably connected to the shaft cover 41 through the swing arm chute 44, and the other end extends towards the accommodating cavity formed by the first display unit 10, the second display unit 31, and the second appearance member, and is connected to the second support member 321. In this way, combined with Figure 5 and Figure 6 , when a user applies a force to the first body 20 and / or the second body 30, the first body 20 and / or the second body 30 can be folded (as shown in Figure 6 ) or unfolded (as shown in Figure 4 ) relative to the shaft cover 41 under the user's force, that is, the first swing arm 42 and the second swing arm 43 can rotate around the axis S0 of the rotating shaft structure 40, so that the two bodies can be folded or unfolded around the axis S0, and further realize the folding (as shown in Figure 6 ) or unfolding (as shown in Figure 4 ) and other states of the folding mobile phone 100.

[0079] It should be noted here that the related drawings of the rotating shaft structure 40 in the embodiments of the present application are simplified schematic structural diagrams. The folding mechanism 40 is not limited to the structure in the figure and may also include other structures, which will not be elaborated here.

[0080] Continuing to refer to Figure 4 , in order to pursue the full-screen effect of the outer screen of the folding machine, etc., usually the outer screen 31 and the rear cover 21 are extended above the shaft cover 41, that is, along the Z-axis direction, the outer screen 31 overlaps with the shaft cover 41, and the rear cover 21 overlaps with the shaft cover 41, that is, the positive projection of the outer screen 31 on the XY plane overlaps with the positive projection of the shaft cover 41 on the XY plane, and, the positive projection of the rear cover 21 on the XY plane overlaps with the positive projection of the shaft cover 41 on the XY plane.

[0081] It has been found through research that when the outer screen 31 and the rear cover 21 are extended above the shaft cover, continuing to refer to Figure 4, when the foldable mobile phone 100 is in the unfolded state, in the first body 20, due to factors such as the clearance between the shaft cover 41 and the first support member 221, the minimum wall thickness of the first support member 221, and the thickness of the rear cover 21, the thickness of the first body 20 of the foldable mobile phone 100 is relatively thick in the unfolded state. Also, in the second body 30, due to factors such as the clearance between the shaft cover 41 and the second support member 321, the minimum wall thickness of the second support member 321, the clearance between the second display unit 31 and the second support member 321, and the thickness of the second display unit 31, the thickness of the second body 30 of the foldable mobile phone 100 is relatively thick in the unfolded state. Continue to refer to Figure 6 , when the foldable mobile phone 100 is in the folded state, in the first body 20, due to factors such as the design of the first swing arm 42, the clearance between the first swing arm 42 and the first support member 221, the minimum wall thickness of the first support member 221, and the thickness of the rear cover 21, the thickness of the first body 20 of the foldable mobile phone 100 is relatively thick in the folded state. Also, in the second body 30, due to factors such as the design of the second swing arm 43, the clearance between the second swing arm 43 and the second support member 321, the minimum wall thickness of the second support member 321, the clearance between the second display unit 31 and the second support member 321, and the thickness of the second display unit 31, the thickness of the second body 30 of the foldable mobile phone 100 is relatively thick in the folded state.

[0082] Based on the above findings, it can be seen that when the foldable mobile phone 100 is in different states (unfolded state and folded state), due to the need to retain the minimum wall thickness of the support members (the first support member 221 and the second support member 321), the thickness of the foldable mobile phone 100 is relatively thick.

[0083] The minimum wall thickness of the support member varies depending on the design of the rotating shaft structure 40. In one case, the minimum wall thickness is caused by the avoidance constraint of the shaft cover 41 in the unfolded state. That is, in the unfolded state, in order to avoid the support member affecting the shaft cover 41, there needs to be a certain clearance between the shaft cover 41 and the support member, and then the support member at the corresponding position of the shaft cover 41 is thinned to form the minimum wall thickness of the support member. In another case, the minimum wall thickness is caused by the avoidance constraint of the swing arm in the folded state. That is, in the folded state, in order to avoid the support member affecting the swing arm, there needs to be a certain clearance between the swing arm and the support member, and then the support member at the corresponding position of the swing arm is thinned to form the minimum wall thickness of the support member. Of course, it is also possible that the avoidance constraint of the shaft cover in the unfolded state and the avoidance constraint of the swing arm in the folded state cause the minimum wall thickness at the same time.

[0084] It should be noted that the so-called minimum wall thickness refers to the minimum thickness that the support member can reach under the allowable process conditions, that is, when the thickness is less than this minimum wall thickness, the support member cannot be reliably formed.

[0085] To achieve the thinness and lightness of the foldable mobile phone 100, an embodiment of the present application further provides a structural component. The structural component is designed with a hole at the position of the minimum wall thickness of the support member. In this way, the position of the minimum wall thickness of the support member changes from the minimum wall thickness to zero, avoiding the problem that the thickness of the foldable mobile phone 100 is relatively thick due to the need to retain the minimum wall thickness of the support member when the foldable mobile phone 100 is in different states, and achieving the effect of reducing the thickness of the foldable mobile phone in both the folded state and the unfolded state.

[0086] The following describes the specific structure of the structural component provided by the embodiment of the present application in combination with the foldable mobile phone. Among them, the following content is only described by taking the hollowing design on the second support member as an example. When the hollowing design is carried out on the first support member, the specific structure of the first support member, the corresponding structure to the first support member, and the generated effects are the same as those in the following examples when the hollowing design is carried out on the second support member, and the specific structure when the hollowing design is carried out on the first support member will not be described in detail below.

[0087] See Figure 7 , the second support member 321 includes opposite first surface 321a and second surface 321b, and the second display unit 31 is disposed on the first surface 321a. A cover plate 311 fixedly connected to the second display unit 31 is disposed on the side of the second display unit 31 facing away from the second support member 321. For example, the cover plate 311 can be fixed to the second display unit 31 through an optically clear adhesive (OCA).

[0088] Along the X-axis direction, the second support member 321 includes a stepped portion 321c and a support portion 321d. The cover plate 311 is fixed to the stepped portion 321c so that the display screen 31 is located on the support portion 321d. In some embodiments, for example, glue can be applied at the stepped portion 321c to fix the cover plate 311 to the stepped portion 321c.

[0089] The shaft cover 41 and the second swing arm 43 of the rotating shaft structure 40 are located on the side of the second surface 321b facing away from the first surface 321a. The second swing arm 43 includes a rotating portion 431 and a connecting portion 432; the rotating portion 431 of the second swing arm 43 is rotatably connected to the shaft cover 41 through a swing arm chute 44, and the connecting portion 432 of the second swing arm 43 is connected to the second support member 321.

[0090] Combined with Figure 8 and Figure 9 , a hollow portion 322 is formed on the support portion 321d.

[0091] When the minimum wall thickness is caused by the avoidance constraint of the unfolded shaft cover 41, that is, in the unfolded state, because the second display unit 31 is provided, the second support member 321 will sink downward, and because the shaft cover 41 is provided and the shaft cover 41 has a portion with a relatively high height, the second support member 321 will be thinned upward at this position to avoid affecting the shaft cover 41. The downward sinking and upward thinning of the second support member 321 result in the support member having a minimum wall thickness. Therefore, the minimum wall thickness at this position can be hollowed out to form a hollow portion 322. That is, the formed hollow portion 322 can at least expose the highest portion of the shaft cover 41. The highest portion of the shaft cover is the portion closest to the second display unit 31 among the overlapping portions of the shaft cover and the second display unit 31 in the direction perpendicular to the Z-axis.

[0092] In some embodiments, in combination with Figure 10 , the shaft cover 41 includes a straight portion 411 in the X-axis direction and bent portions 412 located on both sides of the straight portion 411. From the edge where the bent portion 412 contacts the straight portion 411 to the edge of the bent portion 412 away from the straight portion 411, the height of the bent portion 412 gradually decreases. The bent portion 412 can be, for example, a surface with a curvature. The highest portion of the shaft cover 41 is the overlapping portion of the straight portion 411 and the second display unit 31 in the direction perpendicular to the Z-axis, such as Figure 7 the DD area in. The hollow portion 322 can at least expose the overlapping portion of the straight portion 411 and the second display unit 31.

[0093] See Figure 11 , when the minimum wall thickness is caused by the avoidance constraint of the swing arm in the folded state, that is, in the folded state, because the second display unit 31 is provided, the second support member 321 will sink downward, and because the rotating portion 431 of the swing arm is provided and the rotating portion 431 has a portion with a relatively high height, the second support member 321 will be thinned upward at this position to avoid affecting the swing arm. The downward sinking and upward thinning of the second support member 321 result in the support member having a minimum wall thickness. Therefore, the minimum wall thickness at this position can be hollowed out to form a hollow portion 322. That is, the formed hollow portion 322 can at least expose the highest portion of the rotating portion 431. The highest portion of the rotating portion 431 is the portion closest to the second display unit 31 among the overlapping portions of the rotating portion 431 and the second display unit 31 in the direction perpendicular to the Z-axis, such as Figure 11 the EE area in.

[0094] When the minimum wall thickness is caused by both the avoidance constraint of the shaft cover 41 in the unfolded state and the avoidance constraint of the swing arm in the folded state, that is, in the unfolded state, because the second display unit 31 is provided, the second support member 321 will sink downward, and because the shaft cover 41 is provided and the shaft cover 41 has a portion with a relatively high height, the second support member 321 will be thinned upward at this position to avoid affecting the shaft cover 41. Also, in the folded state, because the rotating portion 431 of the swing arm is provided and the rotating portion 431 has a portion with a relatively high height, the second support member 321 will be thinned upward at this position to avoid affecting the swing arm. The downward sinking and upward thinning of the second support member 321 result in the minimum wall thickness of the support member. Therefore, the position with the minimum wall thickness can be hollowed out to form a hollow portion 322. The formed hollow portion 322 can at least expose the highest portion of the rotating portion 431 and at least expose the highest portion of the shaft cover 41.

[0095] In summary, by performing a hole-drilling design at the position of the minimum wall thickness of the second support member to form a hollow portion, in this way, the position with the minimum wall thickness of the support member changes from the minimum wall thickness to zero, avoiding the problem that the thickness of the foldable mobile phone is relatively thick due to the need to retain the minimum wall thickness of the support member in different states of the foldable mobile phone, and achieving the effect of reducing the thickness of the foldable mobile phone in both the folded state and the unfolded state. It has been verified that by adopting this solution, the foldable terminal can be correspondingly thinned by 0.2 - 0.3 mm.

[0096] It should be noted that when the minimum wall thickness is caused by the avoidance constraint of the swing arm in the folded state, refer to Figure 12 , in some embodiments, since the number of the first swing arm 42 and the second swing arm 43 can be multiple, therefore, a hollow portion 322 can be provided at the position corresponding to the highest portion of the rotating portion of each second swing arm 43, that is, the number of the hollow portions 322 is multiple at this time, and the multiple hollow portions 322 are arranged at intervals. Exemplarily, the number of the first swing arm 42 and the second swing arm 43 can be two, so a hollow portion 322 can be provided at the position corresponding to the highest portion of the rotating portion of each second swing arm 43, that is, the number of the hollow portions 322 is two at this time, and the two hollow portions 322 are arranged at intervals. Of course, in this case, the number of the hollow portions 322 can also be one, and a hollow portion 322 is provided at the position corresponding to the highest portion of the rotating portion of each second swing arm 43. For example, refer to Figure 13 .

[0097] Regarding the dimension of the hollow portion 322 in the X-axis direction, that is, the width of the hollow portion 322, the embodiments of the present application limit the dimension of the hollow portion 322, and those skilled in the art can set it according to the actual situation. In some embodiments, continue to refer to Figure 9, along the X-axis direction, the hollow portion 322 includes a first end face 322a and a second end face 322b, and the second end face 322b is located on the side of the first end face 322a away from the axis S0. The distance between the first end face 322a and the axis S0 is greater than or equal to 1.5mm, and the distance between the second edge 322b and the axis S0 is less than or equal to 10mm. This arrangement can avoid the situation where the distance between the first end face 322a and the axis S0 is too small, and the distance between the second end face 322b and the axis S0 is too large, that is, the width of the hollow portion 322 is too wide, which affects the strength of the middle frame, and can also avoid the situation where the distance between the first end face 322a and the axis S0 is too large, and the distance between the second end face 322b and the axis S0 is too small, which affects the rotation of the shaft structure 40.

[0098] The embodiment of the present application does not limit the shape of the hollow portion 322, and those skilled in the art can set it according to actual conditions. For example, the orthographic projection shape of the hollow portion 322 on the XY plane includes a rectangle, a runway shape, or a rounded rectangle, etc., wherein the embodiment of the present application is described by taking the orthographic projection shape of the hollow portion 322 on the XY plane as a rounded rectangle as an example.

[0099] This is to prevent dust and / or liquid from entering the body through the hollow portion 322, thereby causing the foldable terminal to fail. Figure 14 , along the X-axis direction, the hollow portion 322 includes a first end surface 322a and a second end surface 322b, and the second end surface 322b is located on the side of the first end surface 322a away from the axis S0. The structural assembly also includes a first sealing structure 50 and a second sealing structure 60, the first sealing structure 50 is filled in the first gap S1 formed between the first end surface 322a, the display screen 31 and the cover plate 311, and the second sealing structure 60 is filled in the second gap S2 formed between the first surface and the display screen. The gap at the corresponding position of the hollow portion is sealed by the first sealing structure 50 and the second sealing structure 60 to prevent dust and / or liquid from entering the body through the hollow portion 322.

[0100] The materials of the first sealing structure 50 and the second sealing structure 60 are not limited in the present embodiment, and those skilled in the art can select them according to actual conditions. For example, the first sealing structure 50 can be one of soft glue, jelly glue, sealant, etc., and the second sealing structure 60 can be one of soft glue, jelly glue, sealant, adhesive, etc. Figure 14, when the first sealing structure 50 can be, for example, soft glue, jelly glue or sealant, etc., the soft glue, jelly glue or sealant can be disposed at the position of the cover plate 311 corresponding to the first gap S1 through a dispensing process, and then the cover plate provided with the soft glue, jelly glue or sealant is pressed on the second display unit 31. The soft glue, jelly glue or sealant fills the first gap S1 and then cures to form the first sealing structure 50. Continuing to refer to Figure 14 , when the second sealing structure 60 can be, for example, soft glue, jelly glue or sealant, etc., the soft glue, jelly glue or sealant can be disposed at the position of the second display unit 31 corresponding to the second gap S2 through a dispensing process, and then the cover plate provided with the soft glue, jelly glue or sealant is pressed on the second support member 321. The soft glue, jelly glue or sealant fills the second gap S2 and then cures to form the second sealing structure 60. Refer to Figure 15 , when the second sealing structure 60 is a back glue, for example, the back glue can be attached to the position of the second support member 321 corresponding to the second gap S2 or attached to the position of the second display unit 31 corresponding to the second gap S2.

[0101] When the first sealing structure 50 and the second sealing structure 60 are relatively soft glues such as soft glue, jelly glue, sealant, back glue, etc., it can be avoided that when the sealing structure contacts other structures, it causes extrusion to other structures. For example, when the sealing structure contacts the display screen, it can be avoided that the display screen is extruded and affects the display effect of the display screen. And when setting this sealing structure, the process steps are relatively simple. When the second sealing structure 60 is a back glue, the process is simple, and the fitting accuracy between the second display unit 31 and the second support member 321 can be ensured, thereby ensuring the sealing effect of the second gap S2 formed between the first surface 321a and the second display unit 31.

[0102] Of course, the method of preventing dust and / or liquid from entering the fuselage through the hollow portion 322 in the X-axis direction is not limited to the above examples. In other alternative embodiments of the present application, refer to Figure 16 and Figure 17 , a protective layer 70 can also be provided on the hollow portion 322, and the protective layer 70 is used to cover the hollow portion 322.

[0103] The reason for such setting is that: the material of the middle frame is generally aluminum alloy, and the minimum wall thickness of the aluminum alloy can be 0.3 mm. When it is less than 0.3 mm, the middle frame cannot be formed. Therefore, by hollowing out the position of the minimum wall thickness and then setting a structure of other materials at the hollowed-out position to cover the hollow portion 322, wherein the thickness of the formed material can be less than 0.3 mm. In this way, it can play the role of the middle frame at this position when not hollowed out, such as enhancing the strength of the middle frame and preventing dust and / or liquid from entering the fuselage, and can also reduce the thickness of the whole machine.

[0104] In some embodiments, along the Z-axis direction, the thickness of the protective layer is greater than or equal to 0.05 mm and less than or equal to 0.1 mm. Compared with the case where the wall thickness at this position is the minimum wall thickness, the thickness at this position can be reduced, thereby thinning the thickness of the entire machine. The thickness of the protective layer is less than the minimum wall thickness of the support member (after being less than the minimum wall thickness, the support member cannot be reliably formed). Exemplarily, the thickness of the protective layer 70 can be, for example, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, or 0.1 mm, etc.

[0105] Regarding the material of the protective layer 70, the embodiments of the present application do not limit the material of the protective layer 70, as long as the purpose of thinning the thickness of the entire machine can be achieved. Exemplarily, the material of the protective layer 70 includes steel, mylar, or plastic, etc. When the material of the protective layer 70 is steel, mylar, or plastic, the thickness of the protective layer can be made less than the minimum wall thickness of the support member, thereby ensuring the effect of thinning the thickness in both the folded state and the unfolded state of the foldable terminal.

[0106] Regarding the setting method of the protective layer 70, the embodiments of the present application do not limit the setting method of the protective layer 70.

[0107] In some possible implementation manners, continue to refer to Figure 17 , the protective layer 70 includes a first branch 71, a second branch 72, and a third branch 73 that are sequentially connected. The third branch 73 includes a first sub-part 731 connected to the second branch 72 and a second sub-part 732 connected to the first sub-part 731. The first branch 71 is fixed on the first surface 321a connected to the first end face 322a. For example, the first branch 71 is fixed on the first surface 321a by welding or bonding. The second branch 72 is opposite to the first end face 322a. The first sub-part 731 is used to cover the hollow part 322. The second sub-part 732 is fixed on the first surface 322a connected to the second end face 322b. For example, the second sub-part 732 is fixed on the first surface 322a by welding or bonding. That is, the projection of the protective layer 70 on the plane perpendicular to the XZ plane is in a "Z" shape, with a simple structure and can prevent dust and / or liquid from entering the fuselage through the hollow part. Optionally, the first branch 71 is parallel to the third branch 73, and the second branch 72 is perpendicular to the first branch 71 and the third branch 73. Such a setting can make the gap between the second display unit 31 and the first end face 322a smaller, avoiding the situation where when the gap between the second display unit 31 and the first end face 322a is large, it is not conducive to the full-screen effect of the outer screen.

[0108] In some possible implementation manners, refer to Figure 18, the protective layer 70 includes a first division 71, a second division 72 and a third division 73 connected in sequence. The first division 71 is fixedly connected to the first end surface 322a, for example, by welding or bonding, so that the first division 71 is fixed on the first end surface 322a, and the third division 73 is fixedly connected to the second end surface 322b, for example, by welding or bonding, so that the third division 73 is fixed on the second end surface 322b, and the second division 72 is used to cover the hollow portion 322 to prevent dust and / or liquid from entering the fuselage through the hollow portion 322. Optionally, the first division 71 is parallel to the third division 73, and the second division 72 is perpendicular to the first division 71 and the third division 73. In this way, the gap between the second display unit 31 and the first end surface 322a can be smaller, so as to avoid the situation that when the gap between the second display unit 31 and the first end surface 322a is larger, it is not conducive to the full screen effect of the external screen.

[0109] As can be seen from the above, when the minimum wall thickness is caused by the swing arm avoidance constraint in the folded state, in some embodiments, since the number of the first swing arm 42 and the second swing arm 43 can be multiple, a hollow portion 322 can be set at the position corresponding to the highest part of the rotating part of each second swing arm 43, that is, at this time, the number of the hollow portions 322 is multiple, and the multiple hollow portions 322 are arranged at intervals, that is, the middle frame aluminum alloy structure can be retained in the non-thickness bottleneck area of ​​the shaft (such as the position avoiding the swing arm). Correspondingly, the protective layer 70 located on the hollow portion 322 is also placed in sections to increase the strength of the middle frame.

[0110] The above example is only used to illustrate the example of sealing the hollow portion 322 in the X-axis direction to prevent dust and / or liquid from entering the body through the hollow portion 322 in the X-axis direction. In order to prevent dust and / or liquid from entering the body through the hollow portion 322 in the Y-axis direction (illustration using the example of setting a sealing structure), see Figure 19 Along the Y-axis direction, the shaft cover 41 includes a middle portion 413 and edge portions 414 located on both sides of the middle portion 413. The edge portions 414 include a first edge 414a and a second edge 414b. The first edge 414a is an edge in contact with the middle portion 413, and the second edge 414b is located on the side of the first edge 414a away from the middle portion 413. From the first edge 414a to the second edge 414b, the height of the edge portion 414 gradually decreases. The second support member 321 is provided with a protrusion 321e adapted to the edge portion 414 at a position corresponding to the edge portion 414. Combined with Figure 20 The first sealing structure 50 and the second sealing structure 60 extend to the position of the protrusion 321e to contact the protrusion 321e.

[0111] That is to say, along the Y-axis direction, the height of the edge position of the shaft cover 41 decreases. Correspondingly, the second support member 321 bulges at the position corresponding to the decreased height of the shaft cover 41. The hollow portion 322 is sealed in the Y-axis direction through the protruding portion 321e. And since the material of the sealing structure is a glue material, when the bonding is completed after dispensing the glue, the glue material will flow to the position of the protruding portion 321e and bond with the protruding portion 321e. In this way, it can prevent dust and / or liquid from entering the fuselage in the Y-axis direction, that is, a closed sealing ring is formed in the X-axis and Y-axis directions to further ensure the sealing effect.

[0112] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A structural component, characterized in that, include: At least two fuselages and a rotating shaft structure connecting two adjacent fuselages; The fuselage comprises a middle frame and an outer shell, the middle frame comprises a support member; the support member comprises a first surface and a second surface opposite to each other, and the outer shell is arranged on the first surface; The shaft structure includes a shaft cover and a swing arm, wherein the shaft cover and the swing arm are located on a side of the second surface away from the first surface; the swing arm includes a rotating portion and a connecting portion; The rotating part of the swing arm is connected to the shaft cover, the connecting part of the swing arm is connected to the support member, and the swing arm is configured to rotate around the axis of the rotating shaft structure so that the two fuselages are folded or unfolded around the axis; Among them, a hollow portion is provided on the support member of at least one of the fuselages; when the two fuselages are in the unfolded state, the hollow portion at least exposes the highest part of the shaft cover, and the highest part of the shaft cover is the part closest to the shell in the overlapping part of the shaft cover and the shell along a direction perpendicular to the first direction; and / or, when the two fuselages are in the folded state, the hollow portion at least exposes the highest part of the rotating part, and the highest part of the rotating part is the part closest to the shell in the overlapping part of the rotating part and the shell along a direction perpendicular to the first direction; the first direction is a direction perpendicular to the shell.

2. The structural component according to claim 1, characterized in that, The outer shell of at least one of the fuselages includes a display screen, and a cover plate fixedly connected to the display screen is provided on a side of the display screen facing away from the middle frame; Along the second direction, the support member includes a step portion and a support portion; the support portion is provided with the hollow portion; the cover plate is fixed to the step portion so that the display screen is located on the support portion; the second direction is a direction perpendicular to the first direction and perpendicular to the axial direction; Along the second direction, the hollow portion includes a first end surface and a second end surface, and the second end surface is located on a side of the first end surface away from the axis; The structural component also includes a first sealing structure and a second sealing structure, wherein the first sealing structure fills a first gap formed between the first end surface, the display screen and the cover plate, and the second sealing structure fills a second gap formed between the first surface and the display screen.

3. The structural component according to claim 2, characterized in that The first sealing structure and the second sealing structure both include one of soft glue, jelly glue and sealant.

4. The structural component according to claim 2, wherein The first sealing structure includes one of soft glue, jelly glue and sealant; the second sealing structure includes back glue.

5. The structural component according to claim 2, characterized in that, Along the third direction, the shaft cover includes a middle portion and edge portions located on both sides of the middle portion, the edge portions include a first edge and a second edge, the first edge is an edge in contact with the middle portion, and the second edge is located on a side of the first edge away from the middle portion; From the first edge to the second edge, the height of the edge portion gradually decreases; The support member is provided with a protrusion matched with the edge portion at a position corresponding to the edge portion, and the first sealing structure and the second sealing structure extend to the position of the protrusion to contact with the protrusion; Wherein, the third direction is parallel to the axis.

6. The structural component according to claim 1, wherein, The structural component further includes a protective layer for covering the hollowed-out portion.

7. The structural component according to claim 6, wherein Along the first direction, the thickness of the protective layer is greater than or equal to 0.05 mm and less than or equal to 0.1 mm.

8. The structural component according to claim 6, characterized in that, The material of the protective layer includes steel, mylar or plastic.

9. The structural component according to claim 6, wherein The protective layer includes a first part, a second part and a third part connected in sequence; Along the second direction, the hollowed-out portion includes a first end face and a second end face, and the second end face is located on the side of the first end face away from the axis; the second direction is a direction perpendicular to the first direction and perpendicular to the axis direction; The first part is fixedly connected to the first end face, the third part is fixedly connected to the second end face, and the second part is used for covering the hollowed-out portion.

10. The structural component according to claim 6, characterized in that, The protective layer includes a first part, a second part and a third part connected in sequence; the third part includes a first sub-part connected to the second part and a second sub-part connected to the first sub-part; Along the second direction, the hollowed-out portion includes a first end face and a second end face, and the second end face is located on the side of the first end face away from the axis; the second direction is a direction perpendicular to the first direction and perpendicular to the axis direction; The first part is fixed on the first surface connected to the first end face, the second part is opposite to the first end face, the first sub-part is used for covering the hollowed-out portion, and the second sub-part is fixed on the first surface connected to the second end face.

11. The structural component according to claim 9 or 10, characterized in that, The first part is parallel to the third part, and the second part is perpendicular to the first part and the third part.

12. The structural component according to claim 1, wherein Along the second direction, the hollowed-out portion includes a first end face and a second end face, and the second end face is located on the side of the first end face away from the axis; the second direction is a direction perpendicular to the first direction and perpendicular to the axis direction; The distance from the first end face to the axis is greater than or equal to 1.5 mm, and the distance from the second end face to the axis is less than or equal to 10 mm.

13. The structural component according to claim 1, wherein The cross-sectional shape of the hollowed-out portion in the reference plane includes a rectangle or a rounded rectangle, where the reference plane is perpendicular to the first direction.

14. A foldable terminal, characterized in that, It includes a flexible screen and the structural component according to any one of claims 1-13; The structural component is used for supporting the flexible screen.

Images