Protective shell and electronic equipment assembly

By designing a switchable protective case structure that elevates the palm and places the stylus tip on the same plane, the problem of poor mobile phone handwriting experience is solved, achieving better handwriting effect and lightweight design.

CN223899251UActive Publication Date: 2026-02-10HUAWEI TECH CO LTD
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Patent Information

Application Number
CN202520194194.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2026-02-10
Estimated Expiration
2035-02-07

AI Technical Summary

Technical Problem

Because of the small size of the phone, it is impossible to place the palm on the screen, which causes the palm and the pen tip to not be on the same plane, reducing the handwriting experience.

Method used

A protective case is provided, including a ring-shaped frame and a back shell, which can switch between a stowed state and an unfolded state. In the unfolded state, the palm is raised so that the palm and the tip of the stylus are on the same plane. This is achieved by the second end of the back plate supported by the ring-shaped frame or by a flexible/rotatable back shell structure.

Benefits of technology

The handwriting experience has been improved, the structure of the protective case has been simplified, the weight has been reduced, and a secure connection is ensured through magnetic or snap-fit ​​methods, improving switching speed and user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model provides a protective shell and an electronic equipment assembly, and belongs to the technical field of protective shells. The protective shell comprises an annular frame and a back shell. The annular frame is used for being arranged on the side wall of the electronic equipment in a sleeving mode. The back shell is used for defining a containing groove for containing the electronic equipment with the annular frame, or the back shell is used for bearing the palm. The protective shell has a storage state and an unfolding state, the protective shell can be switched between the storage state and the unfolding state, when the protective shell is in the storage state, the back shell is fixedly connected with the annular frame, and a containing groove for containing the electronic equipment is defined by the back shell and the annular frame. When the protective shell is in an unfolded state, the annular frame is used for sleeving the side wall of the electronic equipment, at least part of the annular frame and at least part of the back shell are arranged side by side in the radial direction of the annular frame, and the back shell makes contact with the annular frame and is used for bearing the palm. The protective shell can heighten the palm and improve the handwriting experience.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of protective cases, and in particular to a protective case and an electronic device assembly. BACKGROUND

[0002] A stylus is an input device capable of interacting with an electronic device having a display screen. A user holds the stylus and places the tip of the stylus on the display screen of the electronic device. By clicking or sliding the tip on the display screen, the user can edit a document, draw a picture, take a photo, capture a screenshot, and annotate a document. However, when the electronic device is a mobile phone, the size of the mobile phone is small, and the user cannot place the palm on the display screen of the mobile phone. As a result, when writing or drawing, the palm and the tip of the stylus are not on the same plane, which reduces the handwriting experience. CONTENT OF THE UTILITY MODEL

[0003] Embodiments of the present application provide a protective case and an electronic device assembly. The protective case can elevate the palm and improve the handwriting experience.

[0004] In a first aspect, the present application provides a protective case. The protective case includes a ring-shaped frame and a back shell. The ring-shaped frame is configured to be sleeved on a side wall of an electronic device. The back shell is configured to form a receiving slot for receiving the electronic device together with the ring-shaped frame, or the back shell is configured to support a palm. The protective case has a receiving state and an unfolded state, and the protective case can be switched between the receiving state and the unfolded state. When the protective case is in the receiving state, the back shell is fixedly connected with the ring-shaped frame and forms the receiving slot for receiving the electronic device together with the ring-shaped frame. When the protective case is in the unfolded state, the ring-shaped frame is configured to be sleeved on the side wall of the electronic device, at least part of the ring-shaped frame and the back shell are arranged side by side along a radial direction of the ring-shaped frame, and the back shell is in contact with the ring-shaped frame and configured to support the palm.

[0005] When the protective case is in the receiving state, the electronic device is received in the receiving slot, and the electronic device is protected and / or decorated, for example, in a scenario of falling and bumping. When it is necessary to write or draw on the display screen of the electronic device by using a stylus, the protective case is switched from the receiving state to the unfolded state, and then the palm is placed on the back shell to elevate the palm, so that the palm and the tip of the stylus can be located on the same plane, and the handwriting experience is improved.

[0006] In some possible implementations, the back shell includes a support part and a back plate part. The back plate part includes oppositely arranged first and second ends, and the first end of the back plate part is connected with the support part. When the protective case is in the receiving state, the support part and the ring-shaped frame are located on the same side of the back plate part along an axial direction of the ring-shaped frame, the support part is located outside the ring-shaped frame, and the back plate part and the ring-shaped frame form the receiving slot. When the protective case is in the unfolded state, the ring-shaped frame and the support part are arranged side by side and spaced apart along a radial direction of the ring-shaped frame, the ring-shaped frame bears the second end of the back plate part, and the back plate part is configured to support the palm.

[0007] In the implementation, when the protective shell is in the unfolded state, the second end of the back plate portion is carried by the annular frame, and the surface of the back plate portion away from the surface of the support portion along the axial direction of the annular frame can be at the same height as the display surface of the display screen of the electronic device or within a reasonable range of height difference therebetween, so that the palm and the tip of the stylus are almost in the same plane, thereby improving the handwriting experience. In addition, the second end of the back plate portion is carried by the annular frame, and the back plate portion will not collapse when the palm is placed behind the back plate portion. Furthermore, the structure of the back cover can be simplified and the weight of the back cover can be reduced by using the annular frame to carry the back plate portion, thereby reducing the weight of the protective shell.

[0008] In some possible implementations, when the protective shell is in the unfolded state, the second end of the back plate portion overlaps the annular frame along the axial direction of the annular frame.

[0009] In the implementation, the second end of the back plate portion overlaps the annular frame, which realizes that the annular frame carries the back plate portion and can also reduce the difficulty of the annular frame carrying the back plate portion.

[0010] In some possible implementations, the back cover further includes a flexible portion, the flexible portion is located outside the annular frame, one end of the flexible portion is fixedly connected to the second end of the back plate portion, and the other end of the flexible portion is fixedly connected to the outer side wall of the annular frame.

[0011] In the implementation, the back cover is flexibly connected to the annular frame through the flexible portion, the back cover can be flipped relative to the annular frame, so that the protective shell can be switched between the unfolded state and the storage state, and the difficulty of switching the protective shell between the unfolded state and the storage state can be reduced, thereby improving the user experience.

[0012] In some possible implementations, along the axial direction of the annular frame, the other end of the flexible portion is fixedly connected to the middle of the outer side wall of the annular frame.

[0013] In the implementation, when the protective shell is in the unfolded state, the surface of the back plate portion in contact with the palm can be higher than or flush with the top surface of the annular frame, which helps to improve the handwriting experience.

[0014] In some possible implementations, the back cover further includes a connecting portion, the connecting portion is located outside the annular frame, one end of the connecting portion is fixedly connected to the second end of the back plate portion, and the other end of the connecting portion is rotationally connected to the outer side wall of the annular frame.

[0015] In the implementation, the back cover is rotationally connected to the annular frame, the back cover rotates relative to the annular frame, so that the protective shell can be switched between the unfolded state and the storage state, and the switching speed is improved. In addition, when the protective shell is in the unfolded state, the second end of the back plate portion is carried by the annular frame through the structure of the connecting portion and the rotational connection of the annular frame.

[0016] In some possible implementation manners, the other end of the connecting part is rotationally connected to the middle of the outer sidewall of the annular frame in the axial direction of the annular frame.

[0017] In this implementation manner, when the protective shell is in the unfolded state, the surface of the back plate part in contact with the palm can be higher than or flush with the top surface of the annular frame, which helps to improve the handwriting experience.

[0018] In some possible implementation manners, the protective shell further comprises a rotating shaft, and the other end of the connecting part is rotationally connected to the outer sidewall of the annular frame through the rotating shaft.

[0019] In this implementation manner, the connecting part is rotationally connected to the annular frame through the rotating shaft, so that the connecting part is rotationally connected to the annular frame.

[0020] In some possible implementation manners, the end surface of one end of the annular frame is provided with a lap joint groove in the axial direction of the annular frame, and the second end of the back plate part is located inside the lap joint groove when the protective shell is in the unfolded state.

[0021] In this implementation manner, when the protective shell is in the unfolded state, the annular frame and the back plate part are in abutment by arranging the second end of the back plate part inside the lap joint groove, and the surface of the back plate part in contact with the palm can be flush with the top surface of the annular frame.

[0022] In some possible implementation manners, the back shell comprises a support part and a back plate part, the back plate part comprises a first end and a second end arranged oppositely, and the first end and the second end of the back plate part are both connected with the support part. When the protective shell is in the storage state, the support part and the annular frame are located on the same side of the back plate part in the axial direction of the annular frame, the support part is located outside the annular frame, and the back plate part and the annular frame enclose a containing groove. When the protective shell is in the unfolded state, the annular frame and the back shell are arranged side by side in the radial direction of the annular frame, and the back plate part is used for supporting the palm.

[0023] In this implementation manner, when the protective shell is in the unfolded state, the support part connected with the first end and the second end of the back plate part supports the back plate part, so that the surface of the back plate part in contact with the palm can be higher than or flush with the top surface of the annular frame, which helps to improve the handwriting experience.

[0024] In some possible implementation manners, the outer circumferential side of the annular frame has a receiving groove, and the receiving groove and the support part are in one-to-one correspondence. When the protective shell is in the storage state, each support part is located inside the corresponding receiving groove.

[0025] In this implementation manner, by arranging the receiving groove for accommodating the support part on the annular frame, the size of the back shell and the weight of the annular frame can be reduced, so that the weight and volume of the protective shell are reduced.

[0026] In some possible implementation manners, one of the supporting portions of the back shell is provided with a pen slot away from the end surface of the back plate portion along the axial direction of the annular frame, and the pen slot is configured to accommodate the stylus.

[0027] In this implementation manner, the pen slot is arranged on the supporting portion to facilitate the use of the stylus. In addition, the weight of the back shell can be reduced, and the lightweight design of the protective case can be facilitated.

[0028] In some possible implementation manners, the protective case further includes a first magnetic attraction member and a second magnetic attraction member, the first magnetic attraction member is fixedly connected to the annular frame, and the second magnetic attraction member is fixedly connected to the back shell. When the protective case is in the storage state, the first magnetic attraction member is magnetically connected to the second magnetic attraction member to fix the annular frame and the back shell.

[0029] In this implementation manner, when the protective case is in the storage state, the first magnetic attraction member is magnetically connected to the second magnetic attraction member to ensure that the back shell and the annular frame are stably connected, thereby avoiding the accidental separation of the back shell and the annular frame to protect the electronic device. In addition, the difficulty of movement of the back shell relative to the annular frame can be reduced, the difficulty of switching the protective case from the storage state to the unfolded state can be reduced, and the switching speed of the protective case can be improved.

[0030] In some possible implementation manners, at least one of the first magnetic attraction member and the second magnetic attraction member is a magnetic member.

[0031] In this implementation manner, the first magnetic attraction member and the second magnetic attraction member can be magnetically connected.

[0032] In some possible implementation manners, the first magnetic attraction member is embedded in the interior of the annular frame.

[0033] In this implementation manner, the first magnetic attraction member is avoided from being exposed, the appearance of the protective case is improved, and the weight of the protective case can be reduced.

[0034] In some possible implementation manners, the second magnetic attraction member is embedded in the interior of the back shell.

[0035] In this implementation manner, the second magnetic attraction member is avoided from being exposed, the appearance of the protective case is improved, and the weight of the protective case can be reduced.

[0036] In some possible implementation manners, one end of the annular frame is provided with a clamping slot in the end surface along the axial direction of the annular frame, and the back shell has a protruding portion configured to be inserted into the clamping slot. When the protective case is in the storage state, the protruding portion is clamped into the interior of the clamping slot to fix the annular frame and the back shell. When the protective case is in the unfolded state, the protruding portion is located outside the clamping slot.

[0037] In this implementation, when the protective case is in the retracted state, the back cover and the ring frame are engaged by the protrusions snapping into the slots, ensuring a secure connection between the back cover and the ring frame and preventing accidental separation of the back cover and the ring frame, thus protecting the electronic device.

[0038] In some possible implementations, the back cover has a light-transmitting area for light to pass through, which covers the camera of the electronic device when the cover is in the stowed state.

[0039] In this implementation, when the electronic device is housed in the receiving slot, the camera of the electronic device can capture light from outside the electronic device to achieve the shooting function.

[0040] In some possible implementations, the back cover has a first through-hole, which is used for inserting a camera module of an electronic device when the protective cover is in the retracted state.

[0041] In this implementation, when the electronic device is housed in the receiving slot, the camera of the electronic device can capture light from outside the electronic device to achieve the shooting function.

[0042] In some possible implementations, the back cover has a second through-hole, which is used to expose the camera of the electronic device when the protective cover is in the retracted state.

[0043] In this implementation, when the electronic device is housed in the receiving slot, the camera of the electronic device can capture light from outside the electronic device to achieve the shooting function.

[0044] Secondly, embodiments of this application provide an electronic device assembly, which includes an electronic device and a protective housing as described in any of the first aspects, the protective housing having a receiving groove in which the electronic device can be received.

[0045] In some possible implementations, the electronic device is a mobile phone. Attached Figure Description

[0046] Figure 1 A schematic diagram showing the first type of protective shell provided in the embodiments of this application in a stored state;

[0047] Figure 2 for Figure 1 The diagram shown illustrates the protective shell in its deployed state.

[0048] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the protective case in its stowed state when it is used with an electronic device.

[0049] Figure 4 for Figure 1 The diagram shows a cross-sectional view of the protective shell in its deployed state in conjunction with electronic equipment.

[0050] Figure 5 A cross-sectional view of the second protective shell provided by the embodiment of the present application in cooperation with the electronic device in the storage state;

[0051] Figure 6 A cross-sectional view of the third protective shell provided by the embodiment of the present application in cooperation with the electronic device in the storage state;

[0052] Figure 7 A cross-sectional view of the fourth protective shell provided by the embodiment of the present application in cooperation with the electronic device in the storage state; Figure 6

[0053] Figure 8 A cross-sectional view of the fifth protective shell provided by the embodiment of the present application in cooperation with the electronic device in the storage state;

[0054] Figure 9 A cross-sectional view of the sixth protective shell provided by the embodiment of the present application in cooperation with the electronic device in the storage state; Figure 8

[0055] A cross-sectional view of the seventh protective shell provided by the embodiment of the present application in cooperation with the electronic device in the storage state; Figure 10

[0056] A cross-sectional view of the eighth protective shell provided by the embodiment of the present application in cooperation with the electronic device in the storage state; Figure 11

[0057] A top view of the ninth protective shell provided by the embodiment of the present application in the storage state; Figure 12

[0058] A cross-sectional view of the ninth protective shell provided by the embodiment of the present application in cooperation with the electronic device in the storage state; Figure 13

[0059] A cross-sectional view of the ninth protective shell provided by the embodiment of the present application in cooperation with the electronic device in the storage state; Figure 14

[0060] A top view of the tenth protective shell provided by the embodiment of the present application in the storage state; Figure 15

[0061] A cross-sectional view of the tenth protective shell provided by the embodiment of the present application in cooperation with the electronic device in the storage state; Figure 16 Figure 15 A cross-sectional view of the tenth protective shell provided by the embodiment of the present application in cooperation with the electronic device in the storage state;

[0062] Figure 17 Figure 15 A cross-sectional view of the tenth protective shell provided by the embodiment of the present application in cooperation with the electronic device in the storage state; ​​​

[0063] Figure 18 FIG. 10 is a top view of a tenth protective case according to an embodiment of the present application;

[0064] Figure 19 FIG. 11 is a top view of a ring-shaped frame in the tenth protective case according to an embodiment of the present application. Figure 18

[0065] Legend of reference signs:

[0066] 100, protective case;

[0067] 110, ring-shaped frame; 111, first frame; 112, second frame; 113, third frame; 114, fourth frame;

[0068] 120, back shell; 121, support part; 122, back plate part; 123, flexible part; 124, connecting part; 125, rotating shaft; 126, first leather layer; 1261, first part; 1262, second part;

[0069] 130, accommodating groove; 140, lapping groove; 150, pen slot; 160, storage recess;

[0070] 171, first magnetic attraction part; 172, second magnetic attraction part;

[0071] 181, clamping groove; 182, protruding part;

[0072] 191, light transmission area; 192, first through hole; 193, second through hole;

[0073] 200, electronic device; 210, camera module. DETAILED DESCRIPTION

[0074] The terms used in the embodiment part of the present application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application.

[0075] At present, a stylus is an input device capable of interacting with an electronic device having a display screen. A user holds the stylus and places a stylus tip of the stylus on the display screen of the electronic device. By clicking or sliding the stylus tip on the display screen, the user can edit a document, draw a picture, take a picture, capture a screenshot, and annotate a document. However, when the electronic device is a mobile phone, the size of the mobile phone is small, and the user cannot place a palm on the display screen of the mobile phone. As a result, when writing or drawing, the palm and the stylus tip are not on the same plane, or the height difference between the palm and the stylus tip is too large, which reduces the handwriting experience.

[0076] ​In view of this, this application provides a protective case 100 and an electronic device 200 assembly. The protective case 100 has an unfolded state and a retracted state. When the protective case 100 is in the retracted state, the electronic device 200 is stored in the receiving slot 130 of the protective case 100, protecting and / or decorating the electronic device 200, for example, protecting the electronic device 200 in scenarios such as drops and impacts. When it is necessary to write or draw on the display screen of the electronic device 200 using a stylus, the protective case 100 is switched from the retracted state to the unfolded state, so that the back shell 120 of the protective case 100 is arranged side by side with the display screen of the electronic device 200. Then, the palm is placed on the back shell 120 of the protective case 100, elevating the palm, so that the palm and the tip of the stylus can be on the same plane, improving the handwriting experience.

[0077] Figure 1 This is a schematic diagram showing the first type of protective shell provided in the embodiments of this application in a stored state. Figure 2 for Figure 1 The diagram shown is a schematic of the protective shell in its deployed state.

[0078] The electronic device 200 assembly includes the electronic device 200 and a protective case 100, the protective case 100 having a stored state (e.g., Figure 1 (as shown) and unfolded state (as shown) Figure 2 As shown, the protective case 100 can switch between a retracted state and an unfolded state. When in the retracted state, the protective case 100 has a receiving slot 130, within which the electronic device 200 can be housed, protecting components such as the display screen and battery cover of the electronic device 200. When in the unfolded state, the protective case 100 elevates the palm, allowing the palm and pen tip to be on the same plane, improving the handwriting experience.

[0079] Electronic device 200 can be a mobile phone, a display screen, a tablet computer, or other devices with a display screen. The following explanation will use a mobile phone as an example of electronic device 200.

[0080] The protective shell 100 provided in this application embodiment will be described in detail below with reference to specific embodiments.

[0081] Example 1

[0082] Figure 3 for Figure 1 The diagram shown is a cross-sectional view of the protective case in its stowed state when used with electronic devices. Figure 4 for Figure 1 The diagram shows a cross-sectional view of the protective casing in its deployed state, in conjunction with electronic equipment.

[0083] like Figure 1As shown, the protective shell 100 includes a ring-shaped frame 110 and a back shell 120. The ring-shaped frame 110 is used to be sleeved on the side wall of the electronic device 200, specifically, the ring-shaped frame 110 is sleeved on the side wall of the middle frame of the electronic device 200 and is in interference fit with the middle frame. The back shell 120 is used to enclose the receiving groove 130 (as shown in Figure 1 ) with the ring-shaped frame 110 to accommodate the electronic device 200, or the back shell 120 is used to support the palm.

[0084] As shown, when the protective shell 100 is in the receiving state, the back shell 120 is fixedly connected with the ring-shaped frame 110, the back shell 120 and the ring-shaped frame 110 enclose the receiving groove 130, and the electronic device 200 can be accommodated in the inside of the receiving groove 130 to protect and / or decorate the electronic device 200, for example, to protect the electronic device 200 in the scene of falling and bumping. Figure 3 As shown, when the protective shell 100 is in the unfolded state, the ring-shaped frame 110 is used to be sleeved on the side wall of the electronic device 200, at least part of the ring-shaped frame 110 and the back shell 120 are arranged side by side along the radial direction (such as

[0085] Y direction) of the ring-shaped frame 110, the back shell 120 is in contact with the ring-shaped frame 110 and is used to support the palm, at this time, the back shell 120 and the ring-shaped frame 110 do not constitute the receiving groove 130. When it is needed to use a stylus to write and draw on the display screen of the electronic device 200, the protective shell 100 is switched from the receiving state to the unfolded state, and then the palm is placed on the back shell 120 to elevate the palm, so that the palm and the tip of the stylus can be located in the same plane, thereby improving the handwriting experience. Figure 4 Figure 4 The specific structure of the ring-shaped frame 110 can be formed according to the shape of the electronic device 200, which is not limited here. For example, when the electronic device 200 is a cuboid, as shown in , the ring-shaped frame 110 can include a first frame 111, a second frame 112, a third frame 113 and a fourth frame 114 connected end to end, the first frame 111 and the third frame 113 are arranged side by side and spaced apart, the length of the first frame 111 is the same as that of the third frame 113, the second frame 112 and the fourth frame 114 are arranged side by side and spaced apart, the length of the second frame 112 is the same as that of the fourth frame 114, and the length of the first frame 111 is less than that of the second frame 112. Of course, in some embodiments, the length of the first frame 111 and the length of the second frame 112 can also be the same.

[0086] Figure 1 In order to reduce the weight of the protective shell 100, in some embodiments, the ring-shaped frame 110 can be a plastic part formed by injection molding.

[0087] In order to reduce the weight of the protective shell 100, in some embodiments, the ring-shaped frame 110 can be a plastic part formed by injection molding.

[0088] ​Since the electronic device 200 has a charging port, a power button, a volume button, etc., the annular frame 110 has a through hole structure such as a charging through hole and a button through hole (not shown in the figure). The charging through hole is used to expose the charging port, and the button through hole is used for the insertion of the power button, volume button, etc.

[0089] like Figure 3 As shown, the back cover 120 includes a support portion 121 and a back plate portion 122. The back plate portion 122 includes a first end and a second end disposed opposite to each other, and the first end of the back plate portion 122 is connected to the support portion 121. When the protective shell 100 is in the stored state, along the axial direction of the annular frame 110 (e.g., Figure 3 (In the Z-direction), the support portion 121 and the annular frame 110 are located on the same side of the back panel portion 122, with the support portion 121 located outside the annular frame 110. The back panel portion 122 and the annular frame 110 together form a receiving groove 130 for housing the electronic device 200. Figure 4 As shown, when the protective shell 100 is in the unfolded state, along the radial direction of the annular frame 110 (e.g.) Figure 4 (in the Y direction), the annular frame 110 and the support portion 121 are arranged side by side and spaced apart. The annular frame 110 carries the second end of the back plate portion 122, which is used to support the palm.

[0090] When the protective case 100 is in the unfolded state, the annular frame 110 is fitted onto the side wall of the middle frame of the electronic device 200. Both the annular frame 110 and the electronic device 200 are placed on a supporting plane (e.g., the surface of a table). The annular frame 110 supports the second end of the back panel 122. The support 121 is located between the back panel 122 and the supporting plane and abuts against the supporting plane. Thus, the back panel 122 is suspended above the supporting plane by the support 121 and the annular frame 110. Consequently, the surface of the back panel 122 away from the support 121 along the axial direction of the annular frame 110 can be at the same height as the display surface of the electronic device 200's screen, or the height difference between them can be within a reasonable range, allowing the palm and the pen tip to be almost on the same plane, improving the handwriting experience. In addition, since the annular frame 110 supports the second end of the back panel 122, the back panel 122 will not collapse when the palm is placed on it. Furthermore, by using the annular frame 110 to support the back panel 122, the structure of the back cover 120 can be simplified, the weight of the back cover 120 can be reduced, and thus the weight of the protective shell 100 can be reduced.

[0091] The specific structure of the support portion 121 is not limited here. In some embodiments, the support portion 121 may be a plate-like structure perpendicular to the back plate portion 122. In other embodiments, the support portion 121 may be a column-like structure perpendicular to the back plate portion 122.

[0092] like Figure 1As shown, a support portion 121 is connected to the first end of the back plate portion 122. However, in some embodiments, multiple support portions 121 may also be connected to the first end of the back plate portion 122.

[0093] In some possible implementations, such as Figure 4 As shown, when the protective shell 100 is in the unfolded state, the second end of the back plate portion 122 overlaps with the annular frame 110 along the axial direction of the annular frame 110. In this way, by overlapping the second end of the back plate portion 122 with the annular frame 110, the annular frame 110 can support the back plate portion 122, and the difficulty of the annular frame 110 supporting the back plate portion 122 can also be reduced.

[0094] It should be noted that when the protective shell 100 is in the unfolded state, the second end of the back plate 122 is placed on the annular frame 110, so that the annular frame 110 overlaps with the back plate 122, which serves to support the second end of the back plate 122.

[0095] Figure 5 This is a cross-sectional schematic diagram showing the second type of protective case provided in this application in a stowed state when used with an electronic device.

[0096] In some possible implementations, such as Figure 5 As shown, along the axial direction of the annular frame 110 (e.g.) Figure 5 In the Z-direction, one end face of the annular frame 110 is provided with an overlapping groove 140. When the protective shell 100 is in the unfolded state, the second end of the back plate 122 is located inside the overlapping groove 140, so that the annular frame 110 and the back plate 122 abut against each other along the axial direction of the annular frame 110, thereby achieving the purpose of supporting the second end of the back plate 122. At the same time, it can make the surface of the back plate 122 that contacts the palm flush with the top surface of the annular frame 110, which helps to further improve the handwriting experience.

[0097] In some possible implementations, such as Figure 3 As shown, the back cover 120 also includes a flexible portion 123. One end of the flexible portion 123 is fixedly connected to the second end of the back panel portion 122, and the other end of the flexible portion 123 is fixedly connected to the outer wall of the annular frame 110. In this way, the back cover 120 is flexibly connected to the annular frame 110 through the flexible portion 123, and the back cover 120 can be flipped relative to the annular frame 110, allowing the protective case 100 to switch between an unfolded state and a retracted state. This reduces the difficulty of switching the protective case 100 between the unfolded and retracted states and improves the user experience.

[0098] In some embodiments, such as Figure 3 As shown, along the axial direction of the annular frame 110 (e.g.) Figure 3(in the Z-direction), the other end of the flexible part 123 is fixedly connected to the middle of the outer side wall of the annular frame 110. In this way, when the protective shell 100 is in the unfolded state, the surface of the back plate part 122 that contacts the palm can be higher than or flush with the top surface of the annular frame 110, which helps to improve the handwriting experience.

[0099] Of course, in some other embodiments, along the axial direction of the annular frame 110, the other end of the flexible portion 123 may also be fixedly connected to the top end of the outer wall of the annular frame 110. Alternatively, in yet another embodiment, the other end of the flexible portion 123 may also be fixedly connected between the top end and the middle of the outer wall of the annular frame 110.

[0100] The specific structure of the flexible part 123 is not limited here. In some embodiments, such as Figure 3 As shown, the back cover 120 may further include a first leather layer 126, which includes a first portion 1261 and a second portion 1262. The first portion 1261 is fixedly connected to a first surface of the back panel portion 122, and the second portion 1262 constitutes a flexible portion 123. In other embodiments, the back cover 120 further includes a flexible layer (not shown in the figure), a portion of which is embedded inside the back panel portion 122, and the other end of which is located outside the back panel portion 122.

[0101] It should be noted that the flexible part 123 can be made of other deformable materials besides leather, such as polyester fiber, nylon, polyester, etc.

[0102] To improve the feel, in some embodiments, the back cover 120 may also include a second leather layer (not shown in the figure), which is fixedly connected to the second surface of the back panel portion 122.

[0103] In the above description, the second end of the back panel 122 is flexibly connected to the annular frame 110 via the flexible part 123, so as to switch the protective shell 100 between the unfolded state and the stored state. However, the second end of the back panel 122 can also be rotatably connected to the annular frame 110 to switch the protective shell 100 between the unfolded state and the stored state.

[0104] Figure 6 This is a cross-sectional schematic diagram showing the third type of protective case provided in this application in a stowed state, in conjunction with an electronic device. Figure 7 for Figure 6 The diagram shows a cross-sectional view of the protective casing in its deployed state, in conjunction with electronic equipment.

[0105] Figure 6 and Figure 3 The difference lies in the fact that the back cover 120 is rotatably connected to the annular frame 110. Specifically, as shown... Figure 6As shown, the back shell 120 further comprises a connecting portion 124, which is located outside the annular frame 110, one end of the connecting portion 124 is fixedly connected with the second end of the back plate portion 122, and the other end of the connecting portion 124 is rotatably connected with the outer side wall of the annular frame 110. In this way, the back shell 120 is rotatably connected with the annular frame 110, and the back shell 120 rotates relative to the annular frame 110, so that the protective shell 100 is switched between the unfolded state and the storage state, and the switching speed is improved. In addition, when the protective shell 100 is in the unfolded state, the annular frame 110 bears the second end of the back plate portion 122 through the structure of the rotatable connection of the connecting portion 124 and the annular frame 110.

[0106] Referring to Figure 6 and Figure 7 , in the process of switching the protective shell 100 from the storage state to the unfolded state, the annular frame 110 remains stationary, and the back shell 120 is equivalent to rotating counterclockwise relative to the annular frame 110 until the back plate portion 122 is close to the top end of the annular frame 110 away from the surface of the support portion 121, and then the protective shell 100 in the unfolded state is placed on the support plane. During this process, the annular frame 110 can be sleeved on the middle frame of the electronic device 200, or the annular frame 110 is not sleeved on the middle frame of the electronic device 200.

[0107] In some embodiments, the connecting portion 124, the back plate portion 122 and the support portion 121 are an integral structure integrally formed, which can improve the connection strength of the back plate portion 122 and the support portion 121 and the connecting portion 124, and can improve the manufacturing efficiency of the back shell 120.

[0108] In some embodiments, the materials of the connecting portion 124, the back plate portion 122 and the support portion 121 are hard materials, for example, polycarbonate, polyethylene terephthalate, etc. Of course, the materials of the connecting portion 124, the back plate portion 122 and the support portion 121 can be metal materials or non-metal materials, and when the materials of the connecting portion 124, the back plate portion 122 and the support portion 121 are non-metal materials, it is helpful to reduce the weight of the back shell 120.

[0109] In some possible implementations, as shown in Figure 6 , the other end of the connecting portion 124 is rotatably connected to the middle of the outer side wall of the annular frame 110 along the axial direction (such as the Z direction in Figure 6 ). In this way, when the protective shell 100 is in the unfolded state, the surface of the back plate portion 122 in contact with the palm can be higher or flush with the top surface of the annular frame 110, which helps to improve the handwriting experience.

[0110] Of course, in other embodiments, the other end of the connecting portion 124 can also be rotatably connected to the top end of the outer sidewall of the annular frame 110 along the axial direction of the annular frame 110. Alternatively, in yet other embodiments, the other end of the connecting portion 124 can also be rotatably connected to the top end and the middle of the outer sidewall of the annular frame 110.

[0111] In some possible implementations, as shown in Figure 6 the protective case 100 can further include a rotating shaft 125, and the other end of the connecting portion 124 is rotatably connected to the outer sidewall of the annular frame 110 through the rotating shaft 125. The connecting portion 124 is rotatably connected to the annular frame 110 through the rotating shaft 125, so as to realize the rotatable connection between the connecting portion 124 and the annular frame 110.

[0112] In the above, the switching between the unfolded state and the storage state of the protective case 100 is realized by flipping the back shell 120. However, the switching between the unfolded state and the storage state of the protective case 100 can also be realized by disassembling the back shell 120.

[0113] Figure 8 a cross-sectional view of the fourth protective case provided by the embodiments of the present application in cooperation with an electronic device in a storage state, Figure 9 a cross-sectional view of the protective case shown in Figure 8 in cooperation with an electronic device in an unfolded state.

[0114] Figure 8 and the difference between Figure 6 is that the back shell 120 is removed from the flexible portion 123, and the back shell 120 is formed by the back plate portion 122 and the support portion 121, and the back shell 120 is detachably connected to the annular frame 110. As shown in Figure 8 when the protective case 100 is in the storage state, the back plate portion 122 and the annular frame 110 enclose the accommodation groove 130 for accommodating the electronic device 200. In the process of switching the protective case 100 from the storage state to the unfolded state, the back shell 120 is separated from the annular frame 110, and then the second end of the back plate portion 122 is overlapped on the annular frame 110 along the axial direction of the annular frame 110 (as shown in Figure 9 , or in other words, the second end of the back plate portion 122 is placed on the top surface of the annular frame 110.

[0115] In some possible implementations, as shown in Figure 8 the other end of the connecting portion 124 is rotatably connected to the top end of the outer sidewall of the annular frame 110 along the axial direction of the annular frame 110 (as shown in Figure 8The support part 121 is provided with a pen slot 150 away from the end surface of the back plate part 122, and the pen slot 150 is used to accommodate a handwriting pen. In this way, by arranging the pen slot 150 on the support part 121 to accommodate the handwriting pen, the handwriting pen is convenient to take. In addition, the weight of the back shell 120 can be reduced, which is helpful to realize the lightweight design of the protective shell 100.

[0116] In some possible implementation manners, as shown in Figure 8 The protective shell 100 can further include a first magnetic attraction member 171 and a second magnetic attraction member 172. The first magnetic attraction member 171 is fixedly connected to the annular frame 110, and the second magnetic attraction member 172 is fixedly connected to the back shell 120. When the protective shell 100 is in the storage state, the first magnetic attraction member 171 is magnetically attracted to the second magnetic attraction member 172 to fix the annular frame 110 and the back shell 120.

[0117] When the protective shell 100 is in the storage state, the first magnetic attraction member 171 is magnetically attracted to the second magnetic attraction member 172 to ensure that the back shell 120 is stably connected to the annular frame 110, thereby avoiding accidental separation of the back shell 120 from the annular frame 110, and protecting the electronic device 200. In addition, the difficulty of movement of the back shell 120 relative to the annular frame 110 can be reduced, the difficulty of switching the protective shell 100 from the storage state to the unfolded state can be reduced, and the switching speed of the protective shell 100 can be improved.

[0118] During the switching of the protective shell 100 from the storage state to the unfolded state, an external force is applied to the back shell 120, and the external force is greater than the magnetic attraction force between the first magnetic attraction member 171 and the second magnetic attraction member 172, so that the back shell 120 is separated from the annular frame 110, or the back shell 120 can be flipped relative to the annular frame 110.

[0119] At least one of the first magnetic attraction member 171 and the second magnetic attraction member 172 is a magnetic member. In some embodiments, both the first magnetic attraction member 171 and the second magnetic attraction member 172 are magnetic members. In other embodiments, one of the first magnetic attraction member 171 and the second magnetic attraction member 172 is a magnetic member, and the other is a metal member.

[0120] The number of the first magnetic attraction member 171 can be one or more, and the number of the first magnetic attraction member 171 can also be one or more. In some embodiments, the first magnetic attraction member 171 and the second magnetic attraction member 172 can be one-to-one correspondence. In other embodiments, a single first magnetic attraction member 171 can correspond to multiple second magnetic attraction members 172. In yet other embodiments, a single second magnetic attraction member 172 can correspond to multiple first magnetic attraction members 171.

[0121] Figure 10 A cross-sectional view of the annular frame cooperating with the first magnetic attraction member is provided for the embodiments of the present application.

[0122] In some embodiments, the outer side wall of the annular frame 110 is flexibly connected (as shown in Figure 3 ) or rotatably connected (as shown in Figure 6 ) to the other end of the back cover, and at least one of the annular frames 110 is connected with a first magnetic member 171, for example, as shown in Figure 10 The annular frame 110 includes a first annular frame 111, a second annular frame 112, a third annular frame 113 and a fourth annular frame 114 which are arranged in sequence. In some embodiments, the second annular frame 112 is connected with the first magnetic member 171, and the outer side wall of the fourth annular frame 114 is used to be connected with the flexible part 123 or the connecting part 124 in the above description. In other embodiments, while the outer side wall of the fourth annular frame 114 is connected with the flexible part 123 and the connecting part 124, the second annular frame 112 is connected with the first magnetic member 171, and at least one of the first annular frame 111, the third annular frame 113 and the fourth annular frame 114 can also be connected with the first magnetic member 171, for example, as shown in Figure 10 The second annular frame 112 and the fourth annular frame 114 are both connected with the first magnetic member 171.

[0123] In other embodiments, the protection case 100 is switched between the storage state and the unfolded state by disassembling the back cover 120, and at least two opposite annular frames in the annular frame 110 are connected with the first magnetic member 171, for example, the first annular frame 111 and the third annular frame 113 are provided with the first magnetic member 171, or the second annular frame 112 and the fourth annular frame 114 are provided with the first magnetic member 171.

[0124] In some possible implementation manners, as shown in Figure 8 The first magnetic member 171 is embedded in the inner part of the annular frame 110, avoiding the exposure of the first magnetic member 171, improving the aesthetics of the protection case 100, and helping to reduce the weight of the protection case 100.

[0125] In some possible implementation manners, as shown in Figure 8 The second magnetic member 172 is embedded in the inner part of the back cover 120, avoiding the exposure of the second magnetic member 172, improving the aesthetics of the protection case 100, and helping to reduce the weight of the protection case 100.

[0126] In addition to the detachable connection between the back cover 120 and the annular frame 110 through the magnetic connection, the detachable connection between the back cover 120 and the annular frame 110 can also be achieved through the clamping connection.

[0127] Figure 11 The fifth protection case provided by the embodiments of the present application is in the storage state and cooperates with the electronic device.

[0128] In some possible implementation manners, as shown in Figure 11As shown, along the axial direction of the annular frame 110 (e.g.) Figure 11 In the Z-direction, a slot 181 is provided on one end face of the annular frame 110, and the back cover 120 has a protrusion 182 for inserting into the slot 181. When the protective cover 100 is in the retracted state, the protrusion 182 is engaged with the inside of the slot 181 to fix the annular frame 110 and the back cover 120. When the protective cover 100 is in the unfolded state, the protrusion 182 is located outside the slot 181.

[0129] When the protective case 100 is in the retracted state, the back cover 120 and the annular frame 110 are engaged by the protrusion 182 engaging with the slot 181, ensuring a secure connection between the back cover 120 and the annular frame 110 and preventing accidental separation of the back cover 120 and the annular frame 110, thus protecting the electronic device 200. During the process of switching the protective case 100 from the retracted state to the unfolded state, external force is applied to the back cover 120, causing the protrusion 182 to disengage from the slot 181, thereby separating the back cover 120 from the annular frame 110 or allowing the back cover 120 to flip relative to the annular frame 110.

[0130] The number of protrusions 182 can be one or more. When there are multiple protrusions 182, each protrusion 182 corresponds to a slot 181. The specific structure of the protrusions 182 is not limited here. For example, the protrusion 182 can be a cylindrical structure, a plate-like structure, or a similar structure.

[0131] In some embodiments, such as Figure 11 As shown, the protrusion 182 is located on the surface of the back plate portion 122 and is integral with the back plate portion 122. The back plate portion 122 and the protrusion 182 can be manufactured by integral molding, which can also improve the connection strength between the protrusion 182 and the back plate portion 122.

[0132] In some embodiments, when the outer wall of the annular frame 110 is flexibly or rotatably connected to the other end of the back plate, at least one frame of the annular frame 110 is provided with a slot 181. For example, the annular frame 110 includes a first frame 111, a second frame 112, a third frame 113, and a fourth frame 114 that are adjacent to each other. The second frame 112 is connected to a first magnetic member 171, and the outer wall of the fourth frame 114 is connected to the flexible part 123 or the connecting part 124 mentioned above. In this case, the second frame 112 is provided with a slot 181. Of course, while the outer wall of the fourth frame 114 is connected to the flexible part 123 and the connecting part 124, at least one of the first frame 111, the third frame 113, and the fourth frame 114 may also be provided with a slot 181.

[0133] In other embodiments, when the protective shell 100 is switched between a stowed state and an unfolded state by disassembling the back shell 120, at least two opposite edges of the annular frame 110 are provided with slots 181. For example, slots 181 are provided on the second edge 112 and the fourth edge 114, or on the first edge 111 and the third edge 113.

[0134] It should be noted that, in addition to connecting the back cover 120 and the annular frame 110 solely through magnetic connection or snap-fit, in some scenarios, magnetic connection and snap-fit ​​can also be used in combination to connect the back cover 120 and the annular frame 110.

[0135] Figure 12 This is a cross-sectional schematic diagram showing the sixth type of protective case provided in this application in a stored state when used with an electronic device. Figure 13 This is a cross-sectional schematic diagram showing the seventh type of protective case provided in this application in a stored state when used with an electronic device. Figure 14 This is a cross-sectional schematic diagram showing the eighth type of protective case provided in this application in a stored state when used with an electronic device.

[0136] Typically, an electronic device 200 has a camera module 210 mounted on its back for taking pictures. To ensure that the camera module 210 captures ambient light, some possible implementations include... Figure 12 As shown, the back cover 120 has a light-transmitting area 191 for light to pass through. When the protective cover 100 is in the stored state, the light-transmitting area 191 covers the camera of the electronic device 200. In this way, when the electronic device 200 is stored in the receiving slot 130, the camera of the electronic device 200 can collect light from outside the electronic device 200 to realize the shooting function.

[0137] In some embodiments, the back panel portion 122 includes a light-transmitting region 191 and a non-light-transmitting region 191. In other embodiments, the back panel portion 122 constitutes the light-transmitting region 191, that is, the back panel portion 122 is made of a light-transmitting material.

[0138] Of course, in addition to covering the camera module 210 with a light-transmitting material, the camera module can also collect external light by setting a through hole through the back panel 122.

[0139] In some possible implementations, such as Figure 13 As shown, the back cover 120 has a first through hole 192. When the protective cover 100 is in the stored state, the first through hole 192 is used for the camera module 210 of the electronic device 200 to be inserted. In this way, when the electronic device 200 is stored in the receiving slot 130, the camera of the electronic device 200 can collect light from outside the electronic device 200 to realize the shooting function.

[0140] In some possible implementation manners, as shown in Figure 14 illustrated, the back shell 120 has a second through hole 193, and when the protective shell 100 is in the storage state, the second through hole 193 is used to expose the camera of the electronic device 200. In this way, when the electronic device 200 is stored in the accommodation groove 130, the camera of the electronic device 200 can collect light outside the electronic device 200, and the photographing function can be realized.

[0141] The number of the second through hole 193 can be one or more, for example Figure 14 illustrated, the number of the second through hole 193 is two. When the second through hole 193 is multiple, the second through hole 193 corresponds to the camera one by one.

[0142] Embodiment Two

[0143] Figure 15 A top view schematic diagram of the ninth protective shell provided by the embodiment of the present application in the storage state is shown in Figure 16 A cross-sectional view schematic diagram of the protective shell in cooperation with the electronic device in the storage state is shown in Figure 15 A cross-sectional view schematic diagram of the protective shell in cooperation with the electronic device in the unfolded state is shown in Figure 17 A cross-sectional view schematic diagram of the protective shell in cooperation with the electronic device in the unfolded state is shown in Figure 15

[0144] Figure 15 The difference between the embodiment and the embodiment shown in Figure 1 is that the structure of the back shell 120 is different. Specifically, as shown in Figure 16 the back shell 120 includes a support part 121 and a back plate part 122, the back plate part 122 includes oppositely arranged first and second ends, and the first and second ends of the back plate part 122 are both connected with the support part 121. As shown in Figure 16 when the protective shell 100 is in the storage state, along the axial direction (for example, the Z direction in Figure 16 ) of the annular frame 110, the support part 121 and the annular frame 110 are located on the same side of the back plate part 122, the support part 121 is located outside the annular frame 110, and the back plate part 122 and the annular frame 110 enclose the accommodation groove 130. As shown in Figure 17 when the protective shell 100 is in the unfolded state, the annular frame 110 and the back shell 120 are arranged side by side along the radial direction of the annular frame 110, and the back plate part 122 is used to support the palm.

[0145] As shown in Figure 17 when the protective shell 100 is in the unfolded state, the support part 121 connected through the first and second ends of the back plate part 122 supports the back plate part 122, so that the surface of the back plate part 122 in contact with the palm can be higher than or flush with the top surface of the annular frame 110, which helps to improve the handwriting experience. ​

[0146] The annular frame 110 and the back shell 120 can be detachably connected by magnetic attraction connection, clamping or other manners in the first implementation, which will not be described in detail here.

[0147] The number of the support portions 121 connected to the first end and the second end of the back plate portion 122 can be the same or different. In addition, the structures of the support portions 121 connected to the first end and the second end of the back plate portion 122 can be the same or different. In addition, the structure of the support portion 121 can be a plate structure, a columnar structure or the like.

[0148] Figure 18 a tenth top view schematic diagram of the protective case provided in the embodiments of the present application, Figure 19 a top view schematic diagram of the annular frame in the Figure 18 .

[0149] In some possible implementations, as shown in Figure 19 , the outer circumferential side of the annular frame 110 has a receiving groove 160. As shown in Figure 18 , the receiving groove 160 corresponds to the support portion 121 one by one, and each support portion 121 is located inside the corresponding receiving groove 160 when the protective case 100 is in the receiving state. In this way, by arranging the receiving groove 160 for accommodating the support portion 121 on the annular frame 110, the size of the back shell 120 and the weight of the annular frame 110 can be reduced, thereby reducing the weight and volume of the protective case 100.

[0150] When the first end and the second end of the back plate portion 122 are both connected to the support portion 121, in some possible implementations, one of the support portions 121 of the back shell 120 can be provided with a pen slot 150 away from the end surface of the back plate portion 122 along the axial direction of the annular frame 110, for example, the support portion 121 connected to the first end of the back plate portion 122 is provided with the pen slot 150, and the pen slot 150 is used to accommodate a stylus. In this way, by arranging the pen slot 150 for accommodating the stylus on the support portion 121, the stylus is convenient to use. In addition, the weight of the back shell 120 can be reduced, which is helpful to realize the lightweight design of the protective case 100.

[0151] In some possible implementations, the protective case 100 further includes a third magnetic attraction member (not shown in the figure) and a fourth magnetic attraction member (not shown in the figure), the third magnetic attraction member is embedded in the inside of one of the support portions 121, and the fourth magnetic attraction member is embedded in the inside of the annular frame 110. When the protective case 100 is in the unfolded state, the third magnetic attraction member and the fourth magnetic attraction member make the back shell 120 tightly fit the annular frame 110, which is helpful to improve the handwriting experience.

[0152] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mount", "connect", "connection" should be understood broadly, for example, can be fixed connection, can also be indirectly connected through the intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances. The terms "first", "second", "third", "fourth" and the like (if any) are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0153] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, not to limit them; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all 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 protective shell (100), characterized in that, include: A ring-shaped frame (110) is used to fit onto the side wall of the electronic device (200); The back cover (120) is used to form a receiving groove (130) for housing the electronic device (200) together with the annular frame (110), or to support the palm; The protective shell (100) has a stowed state and an unfolded state, and the protective shell (100) can switch between the stowed state and the unfolded state, wherein: When the protective shell (100) is in the storage state, the back shell (120) is fixedly connected to the annular frame (110) and together with the annular frame (110) forms a receiving groove (130) for storing the electronic device (200). When the protective shell (100) is in the unfolded state, the annular frame (110) is used to fit on the side wall of the electronic device (200). At least a portion of the annular frame (110) and the back shell (120) are arranged side by side along the radial direction of the annular frame (110). The back shell (120) contacts the annular frame (110) and is used to support the palm.

2. The protective shell (100) according to claim 1, characterized in that, The back shell (120) includes a support portion (121) and a back plate portion (122). The back plate portion (122) includes a first end and a second end disposed opposite to each other. The first end of the back plate portion (122) is connected to the support portion (121). When the protective shell (100) is in the stored state, along the axial direction of the annular frame (110), the support part (121) and the annular frame (110) are located on the same side of the back plate part (122), the support part (121) is located outside the annular frame (110), and the back plate part (122) and the annular frame (110) form the receiving groove (130). When the protective shell (100) is in the unfolded state, along the radial direction of the annular frame (110), the annular frame (110) and the support portion (121) are arranged side by side and spaced apart. The annular frame (110) carries the second end of the back plate portion (122), which is used to support the palm.

3. The protective shell (100) according to claim 2, characterized in that, When the protective shell (100) is in the unfolded state, the second end of the back plate portion (122) overlaps the annular frame (110) along the axial direction of the annular frame (110).

4. The protective shell (100) according to claim 3, characterized in that, The back shell (120) also includes a flexible part (123), which is located outside the annular frame (110). One end of the flexible part (123) is fixedly connected to the second end of the back plate part (122), and the other end of the flexible part (123) is fixedly connected to the outer wall of the annular frame (110).

5. The protective shell (100) according to claim 4, characterized in that, Along the axial direction of the annular frame (110), the other end of the flexible part (123) is fixedly connected to the middle of the outer side wall of the annular frame (110).

6. The protective shell (100) according to claim 3, characterized in that, The back shell (120) also includes a connecting part (124), which is located outside the annular frame (110). One end of the connecting part (124) is fixedly connected to the second end of the back plate (122), and the other end of the connecting part (124) is rotatably connected to the outer wall of the annular frame (110).

7. The protective shell (100) according to claim 6, characterized in that, Along the axial direction of the annular frame (110), the other end of the connecting part (124) is rotatably connected to the middle of the outer side wall of the annular frame (110).

8. The protective shell (100) according to claim 6, characterized in that, The protective shell (100) also includes a pivot (125), and the other end of the connecting part (124) is rotatably connected to the outer wall of the annular frame (110) via the pivot (125).

9. The protective shell (100) according to claim 3, characterized in that, Along the axial direction of the annular frame (110), one end face of the annular frame (110) is provided with an overlap groove (140). When the protective shell (100) is in the unfolded state, the second end of the back plate (122) is located inside the overlap groove (140).

10. The protective shell (100) according to claim 1, characterized in that, The back shell (120) includes a support part (121) and a back plate part (122). The back plate part (122) includes a first end and a second end disposed opposite to each other. The first end and the second end of the back plate part (122) are both connected to the support part (121). When the protective shell (100) is in the stored state, along the axial direction of the annular frame (110), the support part (121) and the annular frame (110) are located on the same side of the back plate part (122), the support part (121) is located outside the annular frame (110), and the back plate part (122) and the annular frame (110) form the receiving groove (130). When the protective shell (100) is in the unfolded state, the annular frame (110) and the back shell (120) are arranged side by side along the radial direction of the annular frame (110), and the back plate (122) is used to support the palm.

11. The protective shell (100) according to claim 10, characterized in that, The outer periphery of the annular frame (110) has a storage groove (160), and the storage groove (160) corresponds one-to-one with the support part (121). When the protective shell (100) is in the storage state, each support part (121) is located inside the corresponding storage groove (160).

12. The protective shell (100) according to any one of claims 2 to 11, characterized in that, Along the axial direction of the annular frame (110), one of the support portions (121) of the back shell (120) is provided with a pen groove (150) on the end face away from the back plate portion (122), the pen groove (150) being used to accommodate a stylus.

13. The protective shell (100) according to any one of claims 1 to 11, characterized in that, The protective shell (100) further includes a first magnetic clasp (171) and a second magnetic clasp (172), the first magnetic clasp (171) being fixedly connected to the annular frame (110), and the second magnetic clasp (172) being fixedly connected to the back shell (120). When the protective shell (100) is in the stored state, the first magnetic member (171) and the second magnetic member (172) are magnetically connected to fix the annular frame (110) and the back shell (120).

14. The protective shell (100) according to claim 13, characterized in that, At least one of the first magnetic attractor (171) and the second magnetic attractor (172) is a magnetic element; and / or, The first magnetic element (171) is embedded inside the annular frame (110); and / or, The second magnetic element (172) is embedded inside the back shell (120).

15. The protective shell (100) according to any one of claims 1 to 11, characterized in that, Along the axial direction of the annular frame (110), a slot (181) is provided on one end face of the annular frame (110), and the back shell (120) has a protrusion (182) for inserting into the slot (181). When the protective shell (100) is in the stored state, the protrusion (182) is inserted into the slot (181) to fix the annular frame (110) and the back shell (120). When the protective shell (100) is in the unfolded state, the protrusion (182) is located outside the slot (181).

16. The protective shell (100) according to any one of claims 1 to 11, characterized in that, The back cover (120) has a light-transmitting area (191) for light to pass through, and when the protective cover (100) is in the stored state, the light-transmitting area (191) covers the camera of the electronic device (200).

17. The protective shell (100) according to any one of claims 1 to 11, characterized in that, The back cover (120) has a first through hole (192). When the protective cover (100) is in the stored state, the first through hole (192) is used for the insertion of the camera module (210) of the electronic device (200); or, The back cover (120) has a second through hole (193), which is used to expose the camera of the electronic device (200) when the protective cover (100) is in the stored state.

18. An electronic device (200) component, characterized in that, Includes an electronic device (200) and a protective housing (100) as claimed in any one of claims 1 to 17, the protective housing (100) having a receiving groove (130) in which the electronic device (200) can be received.

19. The electronic device (200) assembly according to claim 18, characterized in that, The electronic device (200) is a mobile phone.