A protective shell

Abstract

The application provides a protective shell. The protective shell comprises a first main shell and a side body flip cover, the first main shell and the side body flip cover are rotationally connected through a rotating assembly, the first main shell comprises a first back plate and a first frame arranged on the side of the first back plate; the rotating assembly comprises a rotating shaft and a rotating piece wound on the rotating shaft, the rotating shaft is arranged in the first back plate, and the rotating shaft is located on the side of the first back plate close to the side body flip cover; the inner wall surface of the side body flip cover is provided with a blocking part, and the rotating piece has a first part arranged on the side body flip cover, and the blocking part at least partially covers the first part. In the application, the inner wall surface of the side body flip cover is provided with the blocking part, and the blocking part at least partially covers the part of the rotating piece arranged on the side body flip cover, so that the blocking part can limit the rotating piece, the setting stability of the rotating piece is increased, the risk of the rotating piece falling off is reduced, and the service life of the protective shell is increased.

Description

Technical Field

[0001] This utility model relates to the field of electronic device accessories, and in particular to a protective shell. Background Technology

[0002] With the rapid development of technology, electronic devices such as mobile phones have gradually become essential tools for people to communicate, entertain themselves, and learn, basically covering various daily application scenarios. Currently, the display panel size of electronic devices is getting larger and larger to improve the user's viewing experience. However, excessively large electronic devices can be inconvenient for users to carry, so foldable screen electronic devices, as an emerging product, are widely loved by consumers.

[0003] Foldable electronic devices consist of an outer screen and an inner screen that are connected to each other. The back of the inner screen may contain features such as a camera. When needed, such as for watching videos, the outer and inner screens can be unfolded to provide a better user experience. When not in use, the outer and inner screens can be folded down to reduce the size of the electronic device for easy portability.

[0004] Foldable screen electronic device phone cases have their main shell connected to the side cover via a rotating component, such as a torsion spring. However, the rotating component is not very stable and is prone to falling off, affecting the normal use of the phone case. Utility Model Content

[0005] This utility model provides a protective case to solve the technical problem of unstable mounting of rotating parts in the phone case of foldable screen electronic devices.

[0006] This utility model provides a protective shell for use in foldable screen electronic devices. The protective shell includes a first main shell and a side flip cover, which are rotatably connected by a rotating assembly. The first main shell includes a first back plate and a first frame disposed around the periphery of the first back plate. The rotating assembly includes a rotating shaft and a rotating member wound around the rotating shaft. The rotating shaft passes through the first back plate and is located on the side of the first back plate closest to the side flip cover. A blocking portion protrudes from the inner wall of the side flip cover. The rotating member has a first portion disposed on the side flip cover, and the blocking portion at least partially covers the first portion.

[0007] Furthermore, the side flap includes a first inner wall surface and a second frame protruding from the periphery of the first inner wall surface; the first part includes a first extension section and a first bending section, the first bending section is connected to the first extension section, and the first bending section bends relative to the first extension section toward the width direction of the first inner wall surface.

[0008] Furthermore, the blocking part has a first opening and a second opening that are connected, the opening direction of the first opening intersects the opening direction of the second opening, and the first part is inserted through the first opening and the second opening.

[0009] Furthermore, the blocking part has a first opening and a second opening that are connected, the opening direction of the first opening intersects the opening direction of the second opening, and the first part is inserted through the first opening and the second opening.

[0010] Furthermore, the protective shell also includes a limiting portion protruding from the blocking portion, the limiting portion abutting against the first bent section.

[0011] Furthermore, the protective shell also includes a second main shell, which together with the first main shell forms an accommodating space for the foldable screen electronic device; the second main shell includes a bottom frame and a perimeter connected to the bottom frame, the bottom frame including a first long side frame, a first short side frame, a second long side frame and a second short side frame arranged sequentially, the first long side frame and the second long side frame being arranged opposite to each other, the first short side frame and the second short side frame being arranged opposite to each other, and both the first long side frame and the second long side frame extending along the length direction of the protective shell; the first long side frame is located on the side of the second main shell near the side flap; in the thickness direction of the protective shell, at least a portion of the size of the first long side frame is smaller than the size of the second long side frame.

[0012] Furthermore, the first long side frame includes a recessed portion and edge portions located on both sides of the recessed portion; in the thickness direction of the protective shell, the size of the recessed portion is smaller than the size of the edge portions.

[0013] Furthermore, in the longitudinal direction of the protective shell, the ratio of the size of the recess to the size of the edge portion is 7 to 3.

[0014] Furthermore, the protective shell also includes a second main shell, which together with the first main shell forms an accommodating space for the foldable screen electronic device; the second main shell includes a bottom frame and a perimeter connected to the bottom frame, the bottom frame including a first long side frame, a first short side frame, a second long side frame and a second short side frame arranged sequentially, the first long side frame and the second long side frame being arranged opposite to each other, the first short side frame and the second short side frame being arranged opposite to each other, and both the first long side frame and the second long side frame extending along the length direction of the protective shell; the protective shell also includes a protrusion protruding from the inner wall of the side flap; when the protective shell is in the folded state, the protrusion is located on the side of the side flap closer to the second main shell.

[0015] Furthermore, the protrusion height of the protrusion relative to the first inner wall surface does not exceed the protrusion height of the second frame relative to the first inner wall surface.

[0016] Furthermore, the protrusion has a first groove, and the first groove partially exposes the inner wall surface of the second frame.

[0017] The protective shell in this application has a blocking portion protruding from the inner wall of the side flap, which at least partially covers the portion of the rotating component located on the side flap, thus limiting the rotation of the component. The blocking portion effectively reduces the risk of accidental loosening or displacement of the rotating component. Whether during frequent relative rotation between the first main shell and the side flap, or during vibration, collision, or accidental drop during daily use, the blocking portion reliably restrains the rotating component in its designated working position. Therefore, the blocking portion increases the stability of the rotating component, reduces the risk of it falling off, and extends the service life of the protective shell. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the protective shell provided in one embodiment of the present invention at one angle;

[0020] Figure 2 This is a schematic diagram of the exploded structure of a protective shell provided in one embodiment of the present invention at one angle;

[0021] Figure 3 This is a schematic diagram of the side-mounted flip cover at one angle in a protective shell provided by one embodiment of the present invention;

[0022] Figure 4 yes Figure 3 Enlarged view of the local structure at point A;

[0023] Figure 5 This is a schematic diagram of the structure of the side-mounted flip cover of a protective shell provided in one embodiment of the present invention from another angle;

[0024] Figure 6 yes Figure 5 Enlarged view of the local structure at point B;

[0025] Figure 7This is a schematic diagram of the structure of the second main shell in a protective shell provided in one embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the second main shell in a protective shell provided in one embodiment of the present invention from another angle;

[0027] Figure 9 This is a cross-sectional structural diagram of the second main shell of the protective shell provided in one embodiment of the present invention at one angle;

[0028] Figure 10 This is a cross-sectional view of a portion of the second main housing at another angle in a protective shell provided in one embodiment of the present invention;

[0029] Figure 11 This is a schematic diagram of the structure of the second main shell in the protective shell provided in one embodiment of the present invention from another angle;

[0030] Figure 12 This is a schematic diagram of the exploded structure of the protective shell provided in one embodiment of the present invention from another angle;

[0031] Figure 13 This is a cross-sectional structural diagram of a protective shell provided in one embodiment of the present utility model;

[0032] Figure 14 This is a schematic diagram of the side-mounted flip cover of a protective shell provided in one embodiment of the present invention at another angle;

[0033] Figure 15 yes Figure 14 A magnified view of a portion of the image.

[0034] Explanation of main component symbols: 10, First main housing; 20, Side flip cover; 30, Second main housing; 40, Rotating assembly; 50, Blocking part; 60, Limiting part; 70, Protrusion; 11, First back plate; 12, First frame; 21, First inner wall surface; 22, Second frame; 31, Bottom frame; 32, Surrounding edge; 41, Rotating shaft; 42, Rotating component; 51, First opening; 52, Second opening; 71, First groove; 311, First long side frame; 312, First short side frame; 313, Second long side frame; 314, Second short side frame; 422, First part; 4221, First extension section; 4222, First bending section; 3111, Recessed part; 3112, Edge part. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as limiting the present utility model. Furthermore, it should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0036] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "top", "bottom", "lateral", "longitudinal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0041] The accompanying drawings provided in this application are schematic diagrams, and some elements are not shown in the drawings. Their purpose is to clearly describe the technical solution and highlight the key features of the utility model. They are not intended to limit the technical solution to exclude these unshown elements. That is to say, the drawings are merely examples and do not represent a limitation on the specific form of the protective casing.

[0042] like Figures 1 to 15 As shown, this embodiment of the present invention provides a protective case. The protective case provided by this embodiment can be applied to foldable screen electronic devices. For example, the protective case can be fitted onto the outside of a foldable screen electronic device to provide protection for the device, such as a foldable screen mobile phone.

[0043] The protective case specifically includes a first main housing 10 and a side flip cover 20. The first main housing 10 and the side flip cover 20 are rotatably connected by a rotating assembly 40. The first main housing 10 includes a first back plate 11 and a first frame 12 disposed around the first back plate 11. The first main housing 10 can rotate relative to the side flip cover 20, so that the protective case can cooperate to enable the folding and unfolding of the foldable screen electronic device.

[0044] The rotating assembly 40 includes a rotating shaft 41 and a rotating element 42 wound around the rotating shaft 41. The rotating shaft 41 passes through the first back plate 11 and is located on the side of the first back plate 11 near the side flap 20. The rotating element 42 can specifically be a torsion spring.

[0045] like Figures 1 to 6 As shown, the inner wall surface of the side flap 20 is provided with a blocking portion 50, and the rotating member 42 has a first portion 422 provided on the side flap 20, and the blocking portion 50 at least partially covers the first portion 422. The rotating assembly 40 includes a rotating shaft 41 and a rotating member 42 wound around the rotating shaft 41. The rotating shaft 41 passes through the first back plate 11 and is located on the side of the first back plate 11 near the side flap 20.

[0046] Understandably, in the prior art, the rotating part 42 is not very stable, which makes it easy for the rotating part 42 to fall off when the first main housing 10 and the side flip cover 20 rotate relative to each other or during daily use of the protective housing, thus affecting the normal use of the protective housing.

[0047] Therefore, this application provides a blocking portion 50 protruding from the inner wall of the side flap 20, which at least partially covers the first part 422 of the rotating member 42 (i.e., the part of the rotating member 42 located on the side flap 20), allowing the blocking portion 50 to limit the rotation of the rotating member 42. The blocking portion 50 effectively reduces the risk of accidental loosening or displacement of the rotating member 42. Whether during frequent relative rotation between the first main housing 10 and the side flap 20, or during vibration, collision, or accidental drop during daily use of the protective shell, the blocking portion 50 reliably restrains the rotating member 42 in its predetermined working position. Therefore, the blocking portion 50 increases the stability of the rotating member 42, reduces the risk of it falling off, and increases the service life of the protective shell.

[0048] Furthermore, in the existing technology, the rotating component 42, located on the side flip cover 20, is usually protruding and relatively sharp. Therefore, when the protective shell is assembled onto the foldable screen electronic device, the rotating component 42 may interfere with the electronic device, causing the rotating component 42 to scratch the electronic device.

[0049] In this application, the blocking part 50 can cover and shield the relatively sharp part of the rotating component 42 located on the side flip cover 20. When the protective case is assembled onto the foldable screen electronic device, the rotating component 42 can be hidden under the blocking part 50, thereby avoiding direct hard contact and interference between the rotating component 42 and the outer shell or screen frame of the foldable screen electronic device, reducing the risk of the protective case scratching the foldable screen electronic device, and improving the protective effect of the protective case.

[0050] Specifically, the protective shell includes a first main shell 10. When assembling a foldable screen electronic device, the first main shell 10 can be fitted onto the inner screen of the foldable screen electronic device, for example, or it can be fitted onto the outer screen of the foldable screen electronic device, without limitation.

[0051] Specifically, the protective case also includes a side flap 20 that is rotatably connected to the first main housing 10 via a rotating assembly 40. When the foldable screen electronic device is in the folded state, the side flap 20 can protect the sides of the foldable screen electronic device.

[0052] During the unfolding of the foldable screen electronic device, the side flip cover 20, which is rotatably connected to the first main housing 10, can provide a certain amount of rotation space for the foldable screen electronic device, making it easier for the foldable screen electronic device to unfold.

[0053] like Figures 1 to 6 As shown, the inner wall surface of the side flap 20 is provided with a blocking part 50, and the number of blocking parts 50 can be set to correspond to the number of rotating parts 42. One or two blocking parts 50 can be provided for each rotating part 42. Specifically, the blocking part 50 can block the end of the rotating part 42 extending into the side flap 20, thereby effectively limiting the rotating part 42 and preventing it from coming off its mounting position due to frequent stretching, vibration, or accidental external force. This direct blocking of the end of the rotating part 42 constitutes a constraint on the outer degree of freedom of the rotating part 42, allowing the end of the rotating part 42 to be reliably fixed in a stable state.

[0054] Furthermore, the rotating component 42 is typically sharp at its end. Therefore, the blocking part 50 blocks the end of the rotating component 42 that extends to the side flap 20, reducing the risk that the sharp end of the rotating component 42 will directly scratch or damage the precision surface of the foldable screen electronic device during assembly or use, and improving the protective effect of the protective case on the foldable screen electronic device.

[0055] Furthermore, the rotating assembly 40 includes a rotating shaft 41 and a rotating element 42. The rotating shaft 41 passes through the first back plate 11. The rotating shaft 41 passes through a pre-drilled hole in the first back plate 11, thereby firmly positioning the rotating shaft 41 on the first main housing 10. Moreover, the rotating shaft 41 is located on the side of the first back plate 11 near the side flap 20, so that the first back plate 11 and the side flap 20 can be rotatably connected.

[0056] The rotating component 42 is wound around the rotating shaft 41, and the rotating component 42 can unfold or rewind as the shaft rotates. Specifically, the rotating component 42 can be a coil spring.

[0057] Furthermore, such as Figure 4 As shown, the first part 422 is the portion of the rotating member 42 that protrudes from the side flap 20. In the prior art, the first part 422 of the rotating member 42 is usually exposed and can scratch the foldable screen electronic device.

[0058] Furthermore, the blocking part 50 is specifically a structure protruding from the inner wall of the side flap 20. The blocking part 50 at least partially covers the first part 422. It can be understood that "the blocking part 50 covers the first part 422" means that when the protective shell is in the unfolded state, the blocking part 50 will cover the first part 422, so that at least part of the first part 422 is covered by the blocking part 50.

[0059] Furthermore, the blocking part 50 protrudes from the first inner wall surface 21, and / or the blocking part 50 protrudes from the inner wall surface of the second frame 22.

[0060] It is understood that the blocking part 50 at least partially covers the first part 422, which means that the blocking part 50 covers the entire first part 422, or it can also mean that the blocking part 50 covers the part of the first part 422, which is not limited here.

[0061] like Figures 1 to 6 As shown, in one possible implementation, the side flap 20 includes a first inner wall surface 21 and a second frame 22 protruding from the periphery of the first inner wall surface 21; the first part 422 includes a first extension 4221 and a first bending section 4222, the first bending section 4222 is connected to the first extension 4221, and the first bending section 4222 bends relative to the first extension 4221 toward the width direction of the first inner wall surface 21.

[0062] Thus, by setting the first bent section 4222 to bend relative to the first extension section 4221 towards the width direction of the first inner wall surface 21, the first part 422 can fit more closely with the blocking part 50, and the first bent section 4222 can form a built-in anti-disengagement hook in the rotating member 42. When the rotating member 42 is subjected to a pulling force that causes it to disengage, the first bend will interlock with the inner edge of the blocking part 50, further preventing the rotating member 42 from falling off and slipping out, thereby greatly enhancing the installation stability of the rotating member 42.

[0063] Specifically, the cavity formed by the second frame 22 and the first inner wall 21 can constitute the rotation space of the foldable screen electronic device, which facilitates the unfolding of the foldable screen electronic device.

[0064] The first extension section 4221 extends from the side of the side flap 20 near the first main housing 10 to the first inner wall surface 21. The first extension section 4221 is connected to the first bending section 4222. The first bending section 4222 bends from the first extension section 4221 toward the width direction of the first inner wall surface 21, so that the first part 422 can fit more closely with the blocking part 50.

[0065] like Figure 5 and Figure 6 As shown, in one possible implementation, the blocking part 50 has a first opening 51 and a second opening 52 that are connected. The opening direction of the first opening 51 intersects the opening direction of the second opening 52, and the first part 422 is inserted through the first opening 51 and the second opening 52.

[0066] Thus, by providing a first opening 51 and a second opening 52 with intersecting opening directions on the blocking part 50, and by having the first part 422 of the rotating member 42 pass through them in sequence, the stability of the rotating member 42 can be further improved.

[0067] Understandably, the opening directions of the first opening 51 and the second opening 52 in the blocking part 50 intersect each other, which is equivalent to laying a non-linear, turning path for the rotating part 42 inside the blocking part 50. This path constitutes a multi-dimensional spatial constraint on the rotating part 42: if the rotating part 42 wants to get out, it cannot be achieved by simple straight pulling, but must overcome frictional forces and mechanical obstacles in two different directions at the same time. No matter what direction of stress is generated by the protective shell during the opening and closing process, or if it encounters vibration and impact during daily use, the rotating part 42 can be firmly restricted to the predetermined position, significantly improving the installation stability of the rotating part 42.

[0068] Specifically, in this embodiment, the first opening 51 is opened in the thickness direction of the side flap 20, and the second opening 52 is opened in the width direction of the side flap 20. The opening direction of the first opening 51 is perpendicular to the opening direction of the second opening 52. By setting the opening directions of the first opening 51 and the second opening 52 to be perpendicular to each other, the second segment of the rotating member 42 can bend through the first opening 51 and the second opening 52, thereby making the rotating member 42 fit more closely with the blocking part 50 and improving the stability of the rotating member 42.

[0069] Furthermore, the protective shell also includes a limiting part 60 protruding from the blocking part 50. The limiting part 60 is specifically located on the side of the blocking part 50 facing the receiving cavity, and the limiting part 60 abuts against the first bent section 4222. In this way, by setting the blocking part 50, the rotating member 42 can be further limited, and the setting stability of the rotating member 42 can be further improved.

[0070] Specifically, the limiting part 60 protrudes from the wall surface of the blocking part 50 facing away from the first main housing 10, so that the limiting part 60 can abut against the end of the rotating member 42. This prevents the relatively sharp end of the rotating member 42 from contacting and interfering with the foldable screen electronic device when the protective shell is assembled with it. This further reduces the risk of the sharp end of the rotating member 42 directly scratching or abrading the precision surface of the foldable screen electronic device during assembly or use, and improves the protective performance of the protective shell for the foldable screen electronic device.

[0071] like Figure 1 and Figure 2 As shown, in one possible implementation, the protective shell further includes a second main shell 30, which, together with the first main shell 10, forms an accommodating space for the foldable screen electronic device. Figures 7 to 11As shown, the second main housing 30 includes a bottom frame 31 and a perimeter 32 connected to the periphery of the bottom frame 31. The bottom frame 31 includes a first long side frame 311, a first short side frame 312, a second long side frame 313, and a second short side frame 314 arranged sequentially. The first long side frame 311 and the second long side frame 313 are arranged opposite to each other, and the first short side frame 312 and the second short side frame 314 are arranged opposite to each other. The first long side frame 311 and the second long side frame 313 both extend along the length direction of the protective housing. The first short side frame 312 and the second short side frame 314 both extend along the width direction of the protective housing.

[0072] The second main housing 30 is, for example, rotatable relative to the first main housing 10. For instance, the first main housing 10 may be fitted onto the inner screen of the foldable electronic device, and the second main housing 30 may be fitted onto the outer screen of the foldable electronic device. Alternatively, the first main housing 10 may be fitted onto the outer screen of the foldable electronic device, and the second main housing 30 may be fitted onto the inner screen of the foldable electronic device; this is not limited to any particular type. The first long side frame 311 is located on the side of the second main housing 30 closest to the side flap 20. Specifically, the first long side frame 311 is the long edge of the bottom frame 31 that is closer to the side flap 20. In other words, the first long side frame 311 is closer to the side flap 20 relative to the second side edge. When the protective case is in the unfolded state, the first long side frame 311 is located on the side of the second main housing 30 closest to the first main housing 10.

[0073] like Figure 9 As shown, in the thickness direction of the protective shell, at least a portion of the first long side frame 311 has a dimension d2 smaller than the dimension d1 of the second long side frame 313. Thus, during the unfolding process of the protective shell from its folded state, the first long side frame 311, which is closer to the side flap 20 in the first main shell 10, is less likely to interfere with the rotating component 42, preventing wear caused by prolonged contact between the first long side frame 311 and the rotating component 42. This improves the service life and protective performance of the protective shell.

[0074] Furthermore, it is understandable that when a protective case in the existing technology is assembled onto a foldable screen electronic device, during the unfolding process of the protective case from its folded state, the first long side frame 311 may interfere with the first inner wall surface 21 of the side flip cover 20, thereby producing abnormal noise and affecting the user experience.

[0075] In this application, in the thickness direction of the protective shell, at least a portion of the first long side frame 311 has a dimension d2 smaller than the dimension d1 of the second long side frame 313. When the protective shell is unfolded from the folded state, a gap is formed between the side flap 20 and at least a portion of the first long side frame 311, and an avoidance space is formed between the first long side frame 311 and the first inner wall surface 21 of the side flap 20. This reduces the contact area between the first long side frame 311 and the first inner wall surface 21 during rotation, thereby reducing interference between the first long side frame 311 and the first inner wall surface 21 of the side flap 20, and reducing abnormal noises emitted during the unfolding of the protective shell from the folded state.

[0076] Furthermore, in the thickness direction of the protective shell, at least a portion of the first long side frame 311 has a dimension d2 smaller than the dimension d1 of the second long side frame 313. This means that the dimension d2 of a portion of the first long side frame 311 is smaller than the dimension d1 of the second long side frame 313, or that the dimension d2 of any part of the first long side frame 311 is smaller than the dimension d1 of the second long side frame 313.

[0077] The dimension d1 of the second long side frame 313 can refer to the average dimension of the second long side frame 313 in the thickness direction of the protective shell, or it can refer to the dimension of the second long side frame 313 at any point in the thickness direction of the protective shell, or it can refer to the average dimension of the second long side frame 313 in the thickness direction of the protective shell, and is not limited here.

[0078] like Figure 10 As shown, the first long side frame 311 further includes a recessed portion 3111 and an edge portion 3112 located on both sides of the recessed portion 3111; in the thickness direction of the protective shell, the dimension d4 of the recessed portion 3111 is smaller than the dimension d3 of the edge portion 3112.

[0079] Specifically, during the rotation of the first long side frame 311, the main interference occurs between the middle portion of the first long side frame 311 and the first inner wall surface 21. The middle portion of the first long side frame 311 is the main cause of the abnormal noise. Therefore, by forming a recess 3111 at the middle position of the first long side frame 311, and in the thickness direction of the protective shell, the dimension d4 of the recess 3111 is smaller than the dimension d3 of the edge portions 3112 located on both sides of the recess 3111.

[0080] Thus, by setting the recessed portion 3111, a gap can be formed between the middle part of the first long side frame 311 and the first inner wall surface 21 during the rotation of the first long side frame 311. The first inner wall surface 21 only contacts the edge portion 3112 of the first long side frame 311, thereby further reducing the interference between the first long side frame 311 and the first inner wall surface 21 of the side flap 20, and reducing the abnormal noise emitted during the unfolding of the protective shell from the folded state.

[0081] Furthermore, in the thickness direction of the protective shell, by setting the dimension d3 of the edge portion 3112 to be greater than the dimension d4 of the recessed portion 3111, the edge portions 3112 located on both sides of the first long side frame 311 can provide sufficient structural strength for the first long side frame 311, thus avoiding the first long side frame 311 from being too thin overall, which would cause the protective shell to fail to provide sufficient protection for the foldable screen electronic device.

[0082] Furthermore, in the longitudinal direction of the protective shell, the ratio of the dimension d4 of the recess 3111 to the dimension d3 of the edge portion 3112 is 7 to 3. For example, it is 3, 4, 5, 6, or 7, and is not limited here.

[0083] Understandably, along the length of the protective shell, the first long side frame 311 needs to have sufficient recessed dimensions to reduce interference between the first long side frame 311 and the first inner wall surface 21 of the side flap 20, and to reduce noise during the unfolding of the protective shell from the folded state. Simultaneously, the first long side frame 311 needs sufficient overall thickness to maintain its structural strength. Therefore, by setting the ratio of the dimension d4 of the recessed portion 3111 to the dimension d3 of the edge portion 3112 along the length of the protective shell to 7 to 3, the first long side frame 311 can be made to have sufficient structural strength while reducing interference between the first long side frame 311 and the first inner wall surface 21 of the side flap 20, reducing noise during the unfolding of the protective shell from the folded state.

[0084] like Figure 1 , Figure 2 as well as Figure 11 middle Figure 15 As shown. In one possible embodiment, the protective shell further includes a second main shell 30, which together with the first main shell 10 forms an accommodating space for the foldable screen electronic device; the second main shell 30 includes a bottom frame 31 and a perimeter 32 connected to the periphery of the bottom frame 31. The bottom frame 31 includes a first long side frame 311, a first short side frame 312, a second long side frame 313, and a second short side frame 314 arranged sequentially. The first long side frame 311 and the second long side frame 313 are arranged opposite to each other, and the first short side frame 312 and the second short side frame 314 are arranged opposite to each other. The first long side frame 311 and the second long side frame 313 both extend along the length direction of the protective shell; the protective shell also includes a protrusion 70 protruding from the inner wall of the side flap 20; when the protective shell is in the folded state, the protrusion 70 is located on the side of the side flap 20 near the second main shell 30.

[0085] It is understandable that when a protective case is assembled on a foldable screen electronic device, in the case of the existing technology, during the process of unfolding the protective case from the folded state, the first long side frame 311 will interfere with the first inner wall surface 21 of the side flip cover 20, thereby producing abnormal noise and affecting the user experience.

[0086] In this application, a protrusion 70 is provided on the side of the side flap 20 near the second main housing 30, and the protrusion 70 protrudes from the inner wall of the side flap 20. When the protective shell is unfolded from the folded state, the protrusion 70 will press against the first long side frame 311, reducing the interference and contact between the first long side frame 311 and the first inner wall surface 21. This reduces the contact area between the first long side frame 311 and the first inner wall surface 21 during rotation, thereby reducing the interference between the first long side frame 311 and the first inner wall surface 21 of the side flap 20, and reducing the abnormal noise emitted when the protective shell is unfolded from the folded state.

[0087] like Figure 12 and Figure 14 As shown, it can be understood that the protrusion 70 and the blocking part 50 are different protruding structures protruding from the inner wall surface of the side flap 20. Specifically, the protrusion 70 and the blocking part 50 are respectively provided on both sides of the side flap 20 in the width direction.

[0088] Furthermore, during the unfolding process of the protective shell from the folded state, the second main shell 30 rotates from the side of the side flap 20 away from the first main shell 10 to the side of the side flap 20 closer to the first main shell 10. When the protective shell is in the folded state, the protrusion 70 is located on the side of the side flap 20 closer to the second main shell 30. In other words, the protrusion 70 is located on the side of the side flap 20 away from the first main shell 10. Therefore, through the setting of the protrusion 70, at the initial stage of unfolding the protective shell from the folded state, the protrusion 70 can abut against the first long side frame 311 of the second main shell 30, so that the first long side frame 311 will not interfere too much with the first inner wall surface 21, reducing the abnormal noise emitted during the unfolding process of the protective shell from the folded state.

[0089] Furthermore, the protrusion 70 protrudes from the first inner wall surface 21, and / or the protrusion 70 protrudes from the inner wall surface of the second frame 22.

[0090] In one possible implementation, the protrusion height of the protrusion 70 relative to the first inner wall surface 21 does not exceed the protrusion height of the second frame 22 relative to the first inner wall surface 21. Thus, during the unfolding of the protective shell from its folded state, the first long side frame 311 can be prevented from being in the rotation path of the second frame 22, thereby avoiding excessive interference between the second frame 22 and the protrusion 70, which could damage the second frame 22 or further generate abnormal noise.

[0091] In one possible implementation, such as Figure 15 As shown, the protrusion 70 has a first groove 71, and the first groove 71 partially exposes the inner wall surface of the second frame 22. In this way, the overall thickness of the side-mounted flip cover 20 is avoided from being too thick, and the overall weight of the protective case is also avoided from being too large, which would affect the user experience.

[0092] Specifically, one or more first grooves 71 are provided in the protrusion 70, and the first grooves 71 may be elongated. The first grooves 71 may partially expose the inner wall surface of a frame structure.

[0093] Understandably, when the protrusion 70 is a solid, thick-walled structure, its outer surface will solidify first during cooling, while the internal material remains molten. As the internal material continues to cool and shrink, significant surface shrinkage marks, depressions, and even voids will occur due to the enormous internal stress. This phenomenon, commonly known as "shrinkage," will greatly affect the appearance quality and structural strength. Furthermore, the solid, thick-walled structure of the protrusion 70 can result in excessively thick glue layers, increasing material costs, extending the molding cycle, and potentially causing deformation due to uneven cooling.

[0094] Therefore, in this application, by providing a first groove 71 in the protrusion 70, the originally excessively thick protrusion 70 is hollowed out, making its wall thickness as consistent as possible with the wall thickness of the surrounding second frame 22. This reduces local material accumulation, avoids the occurrence of "shrinkage," ensures that the entire component can cool and shrink evenly, and guarantees the appearance quality and structural strength of the side flip cover 20.

[0095] Furthermore, this application employs a slotted design in the protrusion 70, which allows the protrusion 70 to still act as abutment against the first long side frame 311 during the unfolding of the protective shell from the folded state, thereby reducing the noise emitted by the protective shell during the unfolding process.

[0096] In the description of this specification, the references to terms such as "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0097] Furthermore, the above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A protective case for use in foldable screen electronic devices, characterized in that, include: It includes a first main housing and a side flip cover, the first main housing and the side flip cover are rotatably connected by a rotating assembly, the first main housing includes a first back plate and a first frame disposed on the periphery of the first back plate; The rotating assembly includes a rotating shaft and a rotating component wound around the rotating shaft. The rotating shaft passes through the first back plate and is located on the side of the first back plate near the side flap. The inner wall of the side flap is provided with a blocking part, and the rotating member has a first part provided on the side flap, the blocking part at least partially covering the first part.

2. The protective shell as described in claim 1, characterized in that, The side-mounted flip cover includes a first inner wall surface and a second frame protruding from the periphery of the first inner wall surface; The first part includes a first extension section and a first bending section, the first bending section being connected to the first extension section, and the first bending section bending relative to the first extension section toward the width direction of the first inner wall surface.

3. The protective shell as described in claim 1, characterized in that, The blocking part has a first opening and a second opening that are connected. The opening direction of the first opening intersects the opening direction of the second opening, and the first part passes through the first opening and the second opening.

4. The protective shell as described in claim 2, characterized in that, It also includes a limiting part protruding from the blocking part, the limiting part abutting against the first bent section.

5. The protective casing as described in any one of claims 1 to 4, characterized in that, It also includes a second main housing, which together with the first main housing forms an accommodating space for the foldable screen electronic device; The second main housing includes a bottom frame and a perimeter connected to the periphery of the bottom frame. The bottom frame includes a first long side frame, a first short side frame, a second long side frame and a second short side frame arranged sequentially. The first long side frame and the second long side frame are arranged opposite to each other, and the first short side frame and the second short side frame are arranged opposite to each other. Both the first long side frame and the second long side frame extend along the length direction of the protective shell. The first long side frame is located on the side of the second main housing near the side flap; In the thickness direction of the protective shell, at least a portion of the first long side frame has a smaller dimension than the second long side frame.

6. The protective shell as described in claim 5, characterized in that, The first long side frame includes a recess and edge portions located on both sides of the recess; in the thickness direction of the protective shell, the size of the recess is smaller than the size of the edge portions.

7. The protective shell as described in claim 6, characterized in that, Along the length of the protective shell, the ratio of the size of the recess to the size of the edge portion is 7 to 3.

8. The protective shell as described in claim 2, characterized in that, It also includes a second main housing, which together with the first main housing forms an accommodating space for the foldable screen electronic device; The protective shell also includes a protrusion protruding from the inner wall of the side flap; when the protective shell is in the folded state, the protrusion is located on the side of the side flap closer to the second main shell.

9. The protective shell as described in claim 8, characterized in that, The protrusion height of the protrusion relative to the first inner wall surface does not exceed the protrusion height of the second frame relative to the first inner wall surface.

10. The protective shell as described in claim 8, characterized in that, The protrusion has a first groove, and the first groove is partially exposed on the inner wall of the second frame.

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