Electronic equipment protective shell

By incorporating a stylus replacement into the electronic device case, compatibility and dust accumulation issues are resolved, resulting in a multi-functional protective case that meets the needs of different users.

CN223566084UActive Publication Date: 2025-11-18SHENZHEN LANHE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423082600.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-11-18
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

Existing electronic device protective cases are incompatible with users who have and do not have styluses, causing dust to accumulate in the pen slot when it is not in use and increasing production costs.

Method used

The design incorporates a stylus replacement and accessory storage slot. The stylus replacement can be selectively stored in the accessory storage slot or connected to the connector, thus meeting the needs of different users, preventing dust accumulation, and providing multi-functional use.

Benefits of technology

It meets the needs of both users with and without styluses, prevents dust accumulation in the accessory storage compartment, reduces production costs, and provides dustproof, stain-proof, and multifunctional effects.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the utility model provides an electronic equipment protective shell, which comprises a shell main body provided with an electronic equipment accommodating cavity and an accessory accommodating groove; and the accessory accommodating groove is used for selectively accommodating the touch control pen replacement part or the touch control pen. According to the electronic equipment protective shell provided by the embodiment of the utility model, the touch pen replacement part can shield the accessory accommodating groove when the accessory accommodating groove is idle, dust accumulation is prevented, the touch pen replacement part can be connected to the connecting part to realize other functions when needed, and the electronic equipment protective shell has the effects of convenience in use and multiple functions.
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Description

TECHNICAL FIELD

[0001] The utility model relates to 3C digital accessories technical field especially relates to a kind of electronic equipment protective housing. BACKGROUND

[0002] Electronic device such as tablet computer, electronic book has become the first choice of many users for entertainment, office by virtue of small size, light weight, easy to carry and other characteristics.The manufacturers of these electronic devices also produce accessories that are used with these electronic devices, typical accessories such as stylus, so that users can use electronic devices more conveniently and efficiently through stylus.In order to protect electronic devices, users usually set protective housing on these electronic devices, in order to carry stylus conveniently, some protective housings are provided with pen slot, but for users who do not purchase stylus, the pen slot is idle and easy to accumulate dust and difficult to clean.For manufacturers, if they design protective housings with and without pen slot at the same time, it will increase the cost of products, and it is easy to cause users to purchase incorrectly, resulting in returns, negative reviews and other consequences.Therefore, it is necessary to provide a protective housing compatible with users with and without stylus. SUMMARY

[0003] Therefore, in order to overcome at least some of the defects and deficiencies in the prior art, the utility model embodiment provides an electronic device protective housing, which is matched with the accessory storage slot by setting the stylus replacement part, so that the accessory storage slot can store the stylus or the stylus replacement part can be stored in the accessory storage slot when the accessory storage slot is idle to prevent dust accumulation.

[0004] The utility model embodiment provides an electronic device protective housing, which comprises a shell main body having an electronic device accommodating cavity and an accessory storage slot; and a stylus replacement part, the accessory storage slot selectively stores the stylus replacement part or the stylus.

[0005] In some embodiments, the side of the stylus replacement part is provided with one of a first protrusion or a first groove, the side wall of the accessory storage slot is provided with the other one of the first protrusion or the first groove, the first protrusion is arranged in the first groove, so that the stylus replacement part is stored in the accessory storage slot.

[0006] Alternatively, the side of the stylus replacement part is provided with a first step portion, the side wall of the accessory storage slot is provided with a second step portion, the first step portion is connected with the second step portion, so that the stylus replacement part is stored in the accessory storage slot.

[0007] Alternatively, the stylus replacement part is provided with a first magnetic attraction part, the accessory storage slot is provided with a second magnetic attraction part, the first magnetic attraction part is magnetically attracted to the second magnetic attraction part, so that the stylus replacement part is stored in the accessory storage slot.

[0008] In some embodiments, the shell body comprises a back plate; the shell body is provided with a connecting portion on a side away from the electronic device accommodating cavity; or, the back plate is provided with a connecting portion on a side away from the electronic device accommodating cavity; the stylus substitute is selectively accommodated in the accessory accommodating slot or connected to the connecting portion.

[0009] In some embodiments, the connecting portion is provided with a third magnetic attraction member, and the stylus substitute has a magnetic attraction portion; when the stylus substitute is connected to the connecting portion, the third magnetic attraction portion is magnetically connected to the magnetic attraction member.

[0010] In some embodiments, the connecting portion is provided with a buckle structure; when the stylus substitute is connected to the connecting portion, the stylus substitute is buckled with the buckle structure.

[0011] In some embodiments, the buckle structure comprises a clamping groove; when the stylus substitute is connected to the connecting portion, the stylus substitute is clamped in the clamping groove; or, the buckle structure comprises a clamping hole; when the stylus substitute is connected to the connecting portion, the stylus substitute is clamped in the clamping hole.

[0012] In some embodiments, the buckle structure further comprises a base, and the base is movably connected to the back plate.

[0013] In some embodiments, the stylus substitute comprises a flexible material; when the stylus substitute is connected to the connecting portion, the stylus substitute can be bent away from the back plate.

[0014] In some embodiments, the length of the stylus substitute is less than or equal to the length of the accessory accommodating slot; the stylus substitute has a first fixed end and a second fixed end; when the stylus substitute is connected to the connecting portion, the first fixed end and the second fixed end are respectively connected to the connecting portion, and a wearing space is formed between the stylus substitute and the shell body.

[0015] In some embodiments, the connecting portion comprises a fixed portion and a sliding portion; the fixed portion is fixed to the shell body, and the sliding portion is slidably connected to the shell body; when the stylus substitute is connected to the connecting portion, the first fixed end is connected to the fixed portion, and the second fixed end is connected to the sliding portion; or, the connecting portion comprises two sliding portions; the two sliding portions are respectively slidably connected to the shell body; when the stylus substitute is connected to the connecting portion, the first fixed end and the second fixed end are respectively connected to the two sliding portions.

[0016] In some embodiments, the stylus replacement piece has a length greater than a length of the accessory receiving slot, and the stylus replacement piece has opposite first and second fixed ends; the stylus replacement piece has a length greater than or equal to 80 cm, the stylus replacement piece is folded and received in the accessory receiving slot when the stylus replacement piece is received in the accessory receiving slot, and the first and second fixed ends are respectively connected to the connecting portion when the stylus replacement piece is connected to the connecting portion.

[0017] As can be seen from the above, the above embodiments of the utility model can achieve one or more of the following beneficial effects: by setting the stylus replacement piece, and the accessory receiving slot can selectively receive the stylus replacement piece or the stylus, when the user purchases the stylus, the stylus can be received in the accessory receiving slot, and when the user does not purchase the stylus, the stylus replacement piece can be received in the accessory receiving slot, the accessory receiving slot can be shielded, and dust accumulation in the accessory receiving slot can be prevented; the user with or without the stylus can be compatible, and the effect of unified manufacturing and production is facilitated

[0018] By setting the stylus replacement piece and the connecting portion, and the stylus replacement piece is selectively received in the accessory receiving slot or connected to the connecting portion, the stylus replacement piece can fill the space of the accessory receiving slot when the stylus replacement piece is received in the accessory receiving slot, so that dust and dirt prevention of the accessory receiving slot can be achieved, and the electronic device protective shell can be multifunctional when the stylus replacement piece is connected to the connecting portion. BRIEF DESCRIPTION OF DRAWINGS

[0019] The specific embodiments of the utility model will be described in detail below with reference to the drawings.

[0020] Figure 1 FIG. 1 is a structural schematic view of an electronic device protective shell provided in an embodiment of the utility model.

[0021] Figure 2 FIG. 2 is an exploded structural schematic view of the electronic device protective shell shown in FIG. 1. Figure 1

[0022] FIG. 3 is another perspective view of the exploded structural schematic view of the electronic device protective shell shown in FIG. 2. Figure 3 Figure 1 FIG. 4 is a structural schematic view of a stylus replacement piece connected to a connecting portion in the electronic device protective shell shown in FIG. 1.

[0023] Figure 4 Figure 1 FIG. 5 is a structural schematic view of the stylus replacement piece connected to the accessory receiving slot in the electronic device protective shell provided in another embodiment of the utility model.

[0024] Figure 5 FIG. 6 is a structural schematic view of the stylus replacement piece connected to the accessory receiving slot in the electronic device protective shell provided in another embodiment of the utility model.

[0025] Figure 6 ​​For Figure 5 The structure schematic view of the stylus replacement part connected to the connecting part in the electronic device protective shell.

[0026] Figure 7 For Figure 6 The exploded structure schematic view.

[0027] Figure 8 The structure schematic view of the stylus replacement part connected to the connecting part in the electronic device protective shell provided by another embodiment of the present application.

[0028] Figure 9 For Figure 8 The exploded structure schematic view.

[0029] Figure 10 The partial section schematic view of the accessory storage groove in the electronic device protective shell in an embodiment of the present application.

[0030] Figure 11 For Figure 10 The structure schematic view of the stylus replacement part separated from the accessory storage groove.

[0031]

Explanation of reference signs

[0032] 10, shell main body; 11, electronic device accommodating cavity; 12, accessory storage groove; 121, second step part; 13, connecting part; 131, fixed part; 132, sliding part; 14, back plate; 15, side frame; 20, stylus replacement part; 21, first fixed end; 22, second fixed end; 23, magnetic attraction part; 24, first step part; 30, third magnetic attraction part; 40, buckle structure; 41, clamping groove; 42, base. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purpose, features and advantages of the present application more apparent, obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0034] In order to make the above-mentioned purpose, features and advantages of the present application more apparent, obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0035] It should be noted that the terms "first", "second" and the like in the description and in the claims of the utility model of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a particular order or sequence. It should be understood that the terms thus used can be interchanged under appropriate circumstances, so that the utility model embodiments described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0036] It should also be noted that the division of the plurality of embodiments in the utility model is only for the convenience of description, and should not constitute a special limitation. The features in various embodiments can be combined and mutually referenced without contradiction.

[0037] Referring to Figure 1 The utility model embodiment electronic equipment protective housing includes shell main body 10 and stylus replacement piece 20, referring to Figure 3 Shell main body 10 has the electronic equipment accommodating cavity 11 and the accessory storage groove 12 that are separated from each other. The accessory storage groove 12 can selectively store the stylus replacement piece 20 or the stylus.

[0038] Among them, the electronic equipment protective housing can be used for electronic equipment such as tablet computer or electronic book, and the electronic equipment is placed in the electronic equipment accommodating cavity 11 when in use. Shell main body 10 includes back plate 14 and side frame 15, and the electronic equipment accommodating cavity 11 is formed by the back plate 14 and the side frame 15. The accessory storage groove 12 is used to store the accessory, such as stylus, used with the electronic equipment. The position of the accessory storage groove 12 can be on the long side of the side frame 15. When the stylus is not used, the stylus can be adsorbed in the accessory storage groove 12 through the clamping or the magnetic attraction structure on the accessory storage groove 12, so that the electronic equipment protective housing can have the function of facilitating the carrying of the stylus and other accessories. When the user does not purchase the stylus, the stylus replacement piece 20 can be stored in the accessory storage groove 12 to shield the accessory storage groove 12 and prevent dust from falling. Therefore, the electronic equipment protective housing provided in the embodiment can meet the needs of the stylus user and the non-stylus user.

[0039] In some embodiments, the side of the stylus replacement piece 20 is provided with one of the first protrusion or the first groove, and the side wall of the accessory storage groove 12 is provided with the other one of the first protrusion or the first groove, and the first protrusion is clamped in the first groove, so that the stylus replacement piece 20 is stored in the accessory storage groove 12.

[0040] In some embodiments, referring to Figure 10 and Figure 11 , the side of the stylus substitute 20 is provided with a first step portion 24, the sidewall of the accessory storage groove 12 is provided with a second step portion 121, the first step portion 24 is clamped with the second step portion 121, so that the stylus substitute 20 is stored in the accessory storage groove 12.

[0041] In some embodiments, the stylus substitute 20 is provided with a first magnetic attraction member, and the accessory storage groove 12 is provided with a second magnetic attraction member, the first magnetic attraction member is magnetically attracted to the second magnetic attraction member, so that the stylus substitute 20 is stored in the accessory storage groove 12.

[0042] Through the above different forms of cooperation, the stylus substitute 20 can be stably stored in the accessory storage groove 12 to prevent falling.

[0043] Referring to Figure 2 , the shell main body 10 is provided with a connecting portion 13 on the side away from the electronic device accommodating cavity 11.

[0044] The connecting portion 13 can be provided on the back plate 14 or the side frame 15. In some specific embodiments, the back plate 14 is provided with a connecting portion 13 on the side away from the electronic device accommodating cavity 11. Among them, the stylus substitute 20 can be selectively stored in the accessory storage groove 12 (referring to Figure 1 ) or connected to the connecting portion 13 (referring to Figure 4 ). For example, referring to Figure 1 , when the stylus substitute 20 is stored in the accessory storage groove 12, it covers the slot of the accessory storage groove 12.

[0045] The stylus substitute 20 can be selectively stored in the accessory storage groove 12 or connected to the connecting portion 13, that is, the stylus substitute 20 is detachably connected with the accessory storage groove 12 and also detachably connected with the connecting portion 13. Therefore, when the user does not purchase the stylus, the stylus substitute 20 can be stored in the accessory storage groove 12 every day, so that the stylus substitute 20 can cover the slot of the accessory storage groove 12 or fill the accessory storage groove 12, so as to occupy the space in the accessory storage groove 12, which can cover the accessory storage groove 12 and prevent pollution and dust accumulation in the accessory storage groove 12. When the stylus needs to be placed in the accessory storage groove 12, the stylus substitute 20 can be connected to the connecting portion 13. Or even if there is no need to place the stylus in the accessory storage groove 12, the stylus substitute 20 can also be connected to the connecting portion 13 to realize other functions such as support by using the volume, shape or structure of the stylus substitute 20 itself. At this time, the accessory storage groove 12 can also be understood as providing a storage space for the stylus substitute 20, and when the other functions of the stylus substitute 20 are not needed, the stylus substitute 20 can be stored in the accessory storage groove 12.

[0046] Therefore, the embodiment of the utility model discloses through setting up stylus replacement piece 20 and connecting portion 13, and stylus replacement piece 20 can be selectively stored in accessory storage groove 12 or be connected to connecting portion 13, can realize the dustproof and antifouling of accessory storage groove 12, realize the multifunction of electronic equipment protective cover, and the user who can be compatible with stylus and no stylus, the effect of facilitating unified manufacture production is realized.

[0047] In some embodiments, the connecting portion 13 is located on the back plate 14, and specifically, the connecting portion 13 can be integrally formed with the back plate 14 or connected with the back plate 14, can be exposed outside the back plate 14 or embedded between the inner and outer surfaces of the back plate 14, and the connecting portion 13 can be a groove or a protrusion or other structure on the back plate 14, and the embodiment is not limited. Since the side edge of the electronic device usually corresponds to keys, charging holes, speakers, power-on keys, etc., the side frame 15 needs to be correspondingly provided with structures such as avoiding holes, and when the accessory storage groove 12 is arranged on the side frame 15, the remaining area on the side frame is small, and arranging the connecting portion 13 on the back plate 14 can provide more sufficient space for the connection of the stylus replacement piece 20, and also facilitates the corresponding structure design. In addition, when the connecting portion 13 is arranged on the back plate 14, it is also convenient to realize the supporting function when the stylus replacement piece 20 is connected to the connecting portion 13.

[0048] For example, the stylus replacement piece 20 itself has a certain thickness, and when the stylus replacement piece 20 is connected to the connecting portion 13, the electronic device protective cover can be raised to a certain height to realize the supporting function.

[0049] In some embodiments, the stylus replacement piece 20 can include a flexible material, and when the stylus replacement piece 20 is connected to the connecting portion 13, the stylus replacement piece 20 can be bent away from the back plate 14. The flexible material has the characteristics of deforming after being subjected to a certain external force, and maintaining the deformed state after the external force is removed. For example, it can be a material such as rubber or metal. For example, refer to Figure 4 When the supporting function of the stylus replacement piece 20 is needed, the stylus replacement piece 20 can be bent to a certain degree to obtain a suitable supporting angle.

[0050] In some embodiments, referring to Figure 2 The connecting portion 13 is provided with a third magnetic attraction piece 30, and the stylus replacement piece 20 has a magnetic attraction part 23, and the magnetic attraction part 23 is magnetically attracted and connected with the third magnetic attraction piece 30 when the stylus replacement piece 20 is connected to the connecting portion 13. The third magnetic attraction piece 30 is, for example, a magnet, and the stylus replacement piece 20 can include a magnet or iron or other parts that can be magnetically attracted as the magnetic attraction part 23, and of course the entire body of the stylus replacement piece 20 can be provided with a magnet structure or an iron structure. Refer to Figure 2In this embodiment, the connecting part 13 is a groove on the back plate 14. The third magnetic member 30 can be embedded in the groove to ensure the flatness of the back of the shell body 10. Alternatively, the third magnetic member 30 can be embedded in the back plate 14, allowing it to be more securely connected to the back plate 14. In this case, the connecting part 13 is the area on the back plate 14 covering the third magnetic member 30. In this embodiment, a magnetic connection is used to connect the stylus replacement 20 to the connecting part 13, making the connection convenient and stable. Furthermore, if the accessory storage slot 12 is equipped with a magnetic stylus structure, the stylus replacement 20 can also be magnetically attached to the accessory storage slot 12. In this embodiment, the stylus replacement 20 may include a soft magnetic strip, which can achieve both magnetic connection and be bent into a certain arc to achieve a larger angle of support.

[0051] In some embodiments, refer to Figure 5 The connecting part 13 is provided with a snap-fit ​​structure 40. When the stylus replacement part 20 is connected to the connecting part 13, the stylus replacement part 20 is snapped into the snap-fit ​​structure 40. The snap-fit ​​structure 40 allows the stylus replacement part 20 to be more securely connected to the connecting part 13.

[0052] Specifically, the snap-fit ​​structure 40 includes a slot 41, and when the stylus substitute 20 is connected to the connecting part 13, the stylus substitute 20 is embedded in the slot 41. Alternatively, the snap-fit ​​structure 40 includes a hole, and when the stylus substitute 20 is connected to the connecting part 13, the stylus substitute 20 passes through the hole. Figure 5 The image shows a specific example of the slot 41. The slot 41 also has a blocking edge extending towards the center of the slot opening, which better limits the positioning of the stylus replacement 20. When the slot is completely closed, a locking hole structure is formed. At this time, the stylus replacement 20 can be inserted from one end of the locking hole and protrude from the other end to connect with the snap-fit ​​structure 40. The snap-fit ​​structure 40 can protrude from the back plate 14 or be embedded in the back plate 14 to make the back of the shell body 10 flatter.

[0053] In some embodiments, refer to Figure 7 The snap-fit ​​structure 40 also includes a base 42, which is movably connected to the back plate 14. Specifically, taking a snap-fit ​​structure 40 with a slot 41 as an example, the slot 41 is fixedly connected to the base 42, and the base 42 is rotatably connected to the back plate 14. Different angles of support can be achieved by rotating the base 42, for example... Figure 6 In its current state, the base 42 provides lateral support; rotating it 90 degrees provides vertical support. Alternatively, the base 42 can be slidably connected to the back plate 14, for example... Figure 6 The central buckle structure 40 is located near the edge of the back plate 14. When the base 42 is slid to the middle of the back plate 14, different support effects can be obtained.

[0054] In some embodiments, referring to Figure 8 and Figure 9 the length of the stylus replacement 20 is less than or equal to the length of the accessory receiving slot 12, the stylus replacement 20 has a first fixed end 21 and a second fixed end 22, when the stylus replacement 20 is connected to the connecting portion 13, the first fixed end 21 and the second fixed end 22 are respectively connected to the connecting portion 13, and a wearing space is formed between the stylus replacement 20 and the shell main body 10. At this time, the stylus replacement 20 can be made of a flexible material or a flexible material, so that when the stylus replacement 20 is connected to the connecting portion 13, the user can put his fingers into the wearing space to hold the electronic device better, preventing the electronic device from falling out of the hand.

[0055] More specifically, the connecting portion 13 includes a fixed portion 131 and a sliding portion 132, the fixed portion 131 is fixed to the shell main body 10, and the sliding portion 132 is slidingly connected to the shell main body 10. When the stylus replacement 20 is connected to the connecting portion 13, the first fixed end 21 is connected to the fixed portion 131, and the second fixed end 22 is connected to the sliding portion 132. As shown in Figure 9 the fixed portion 131 is a protruding column protruding from the shell main body 10, and the sliding portion 132 includes a sliding block and a protruding column arranged on the sliding block. The back plate 14 is also provided with a sliding groove, and the sliding block is clamped in the sliding groove to slide along the sliding groove. The first fixed end 21 and the second fixed end 22 of the stylus replacement 20 are respectively provided with openings, for example, the diameter of the openings is slightly smaller than the diameter of the protruding columns of the fixed portion 131 and the sliding portion 132, so that the first fixed end 21 can be clamped with the fixed portion 131, and the second fixed end 22 can be clamped with the sliding portion 132. By sliding the sliding portion 132 to different positions, the wearing space can be adjusted to a suitable height and width to adapt to different user needs. Of course, the structure of the fixed portion 131 and the sliding portion 132 described above is only an example, and the present embodiment is not limited to the above example. Or in some embodiments, a structure in which both ends slide can also be provided, for example, the connecting portion 13 includes two sliding portions 132, and the two sliding portions 132 are respectively slidingly connected to the shell main body 10. When the stylus replacement 20 is connected to the connecting portion 13, the first fixed end 21 and the second fixed end 22 are respectively connected to the two sliding portions 132. So that when the stylus replacement 20 is connected to the connecting portion 13, both ends can slide, so that the position of the wearing space is more flexible and adjustable.

[0056] In some embodiments, the stylus substitute 20 has a length greater than the length of the accessory receiving slot 12 and the stylus substitute 20 has a length greater than or equal to 80 cm. For example, the stylus substitute 20 has opposite first and second fixed ends 21 and 22. When the stylus substitute 20 is received in the accessory receiving slot 12, the stylus substitute 20 is folded and received in the accessory receiving slot 12. When the stylus substitute 20 is connected to the connection portion 13, the first and second fixed ends 21 and 22 are connected to the connection portion 13, respectively. For example, the stylus substitute 20 has a rope-like structure with a length greater than the length of the accessory receiving slot 12. The first and second fixed ends 21 and 22 or the main body of the rope-like structure can be provided with a structure, such as a lock, a magnetic member, a perforation, or the like, to facilitate connection and fixation of the stylus substitute 20. For example, the magnetic member provided on the stylus substitute 20 can be magnetically attracted to a magnetic structure in the accessory receiving slot 12 when the rope-like structure is folded and received in the accessory receiving slot 12, thereby preventing the rope-like structure from falling out. The connection portion 13 is correspondingly provided with a structure, such as a rope passing hole, a magnetic member, a lock, or the like, that matches the first and second fixed ends 21 and 22 to achieve stable connection of the stylus substitute 20 to the connection portion 13. When the stylus substitute 20 is connected to the connection portion 13, the stylus substitute 20 can be used as a handbag or a cross-body bag.

[0057] The above description is only a preferred embodiment of the present application and is not intended to limit the present application in any form. Although the present application has been disclosed with reference to the preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the present application. Any simple modification, equivalent change and modification of the above embodiments based on the technical essence of the present application are still within the scope of the present application.

Claims

1. An electronic device protective case, characterized by, The application relates to a shell body (10) with an electronic device accommodating cavity (11) and an accessory receiving groove (12); a stylus substitute (20) is selectively received in the accessory receiving groove (12) or a stylus. The side of the stylus substitute (20) is provided with one of a first protrusion or a first groove, and the side wall of the accessory receiving groove (12) is provided with the other one of the first protrusion or the first groove, the first protrusion is clamped in the first groove, so that the stylus substitute (20) is received in the accessory receiving groove (12); or the side of the stylus substitute (20) is provided with a first step portion (24), the side wall of the accessory receiving groove (12) is provided with a second step portion (121), and the first step portion (24) is clamped with the second step portion (121), so that the stylus substitute (20) is received in the accessory receiving groove (12). Or, a first magnetic attraction piece is arranged on the stylus substitute (20), a second magnetic attraction piece is arranged in the accessory receiving groove (12), the first magnetic attraction piece is magnetically attracted to the second magnetic attraction piece, so that the stylus substitute (20) is received in the accessory receiving groove (12).

2. The electronic device protective case of claim 1, wherein, The shell body (10) comprises a back plate (14); a connecting portion (13) is arranged on the side of the shell body (10) away from the electronic device accommodating cavity (11); or a connecting portion (13) is arranged on the side of the back plate (14) away from the electronic device accommodating cavity (11); and the stylus substitute (20) is selectively received in the accessory receiving groove (12) or connected to the connecting portion (13). A third magnetic attraction piece (30) is arranged on the connecting portion (13), the stylus substitute (20) has a magnetic attraction portion (23), and the magnetic attraction portion (23) is magnetically connected to the third magnetic attraction piece (30) when the stylus substitute (20) is connected to the connecting portion (13).

3. The electronic device protective case of claim 1, wherein, A buckle structure (40) is arranged on the connecting portion (13), and the stylus substitute (20) is clamped with the buckle structure (40) when the stylus substitute (20) is connected to the connecting portion (13).

4. The electronic device protective case of claim 3, wherein, The buckle structure (40) comprises a clamping groove (41), and the stylus substitute (20) is embedded in the clamping groove (41) when the stylus substitute (20) is connected to the connecting portion (13); or the buckle structure (40) comprises a clamping hole, and the stylus substitute (20) is clamped in the clamping hole when the stylus substitute (20) is connected to the connecting portion (13).

5. The electronic device protective case of claim 3, wherein, The buckle structure (40) further comprises a base (42), and the base (42) is movably connected to the back plate (14).

6. The electronic device protective case of claim 5, wherein, The stylus substitute (20) is a flexible piece, and the stylus substitute (20) can be bent away from the back plate (14) when the stylus substitute (20) is connected to the connecting portion (13).

7. The electronic device protective case of claim 5, wherein, ​ 8. The protective case for an electronic device according to any one of claims 3 to 7, wherein ​ 9. The electronic device protective case of claim 3, wherein, The stylus replacement part (20) has a length less than or equal to the length of the accessory receiving slot (12), and has opposite first and second fixed ends (21, 22). When the stylus replacement part (20) is connected to the connecting part (13), the first and second fixed ends (21, 22) are respectively connected to the connecting part (13), and a wearing space is formed between the stylus replacement part (20) and the shell main body (10).

10. The electronic device protective case of claim 9, wherein, The connecting part (13) includes a fixed part (131) and a sliding part (132). The fixed part (131) is fixed to the shell main body (10), and the sliding part (132) is slidingly connected to the shell main body (10). When the stylus replacement part (20) is connected to the connecting part (13), the first fixed end (21) is connected to the fixed part (131), and the second fixed end (22) is connected to the sliding part (132). Alternatively, the connecting part (13) includes two sliding parts (132), and the two sliding parts (132) are respectively slidingly connected to the shell main body (10). When the stylus replacement part (20) is connected to the connecting part (13), the first and second fixed ends (21, 22) are respectively connected to the two sliding parts (132).

11. The electronic device protective case of claim 3, wherein, The length of the stylus replacement part (20) is greater than the length of the accessory receiving slot (12), and the length of the stylus replacement part (20) is greater than or equal to 80 cm. The stylus replacement part (20) has opposite first and second fixed ends (21, 22). When the stylus replacement part (20) is received in the accessory receiving slot (12), the stylus replacement part (20) is folded and received in the accessory receiving slot (12). When the stylus replacement part (20) is connected to the connecting part (13), the first and second fixed ends (21, 22) are respectively connected to the connecting part (13).