A protective case for a smart device

Abstract

The utility model discloses a kind of protective cases for intelligent equipment, it is related to protective case technical field, including body part, side part, first guide hole, second guide hole, charging part, card storage area and variable gasket, the side part is annular design, the side surface, upper surface and lower surface of covering body part, and first guide hole is opened in the middle of the back surface of body part, and second guide hole is located in the middle circular place of first guide hole, the charging part is located in the back of body part, and the middle of charging part is provided with variable gasket located in the back of body part.The utility model discloses, when protective case for intelligent equipment is in use, user can stably carry out MagSafe wireless charging even in the state of card storage, while maximumly reduce charging efficiency decline and heating and other problems.This is because the magnet arrangement and shielding structure design arranged inside mobile phone shell device are used to keep charging performance.

Description

Technical Field

[0001] This utility model relates to the field of protective case technology, specifically a protective case for smart devices. Background Technology

[0002] Smartphones have integrated wireless charging functionality and various accessories, significantly improving user convenience. Wireless charging transfers electrical energy through magnetic coupling between transmitting and receiving coils, and is highly sensitive to coil spacing and alignment errors. Apple's MagSafe wireless charging system, in particular, uses a magnetic ring around the charging coil to achieve automatic alignment of the transmitting and receiving coils. However, increased phone case thickness and interference from metal components can lead to reduced charging efficiency. Furthermore, overlapping of a card with the wireless charging coil can generate heat, potentially degrading the performance of NFC and transit card functions.

[0003] Currently, the protective cases used for smart devices still have the following problems:

[0004] Existing card storage phone cases can be categorized into sliding, flip, and external pocket types. Sliding and flip designs, due to their hinge or track structures, increase thickness, impacting portability and making wireless charging difficult. External pocket designs, while simple in structure, offer poor card retention and tend to bulge. Some cases use magnetic plates for compatibility with magnetic holders, but this design may conflict with MagSafe magnetic rings or interfere with the wireless charging magnetic field, reducing charging efficiency. Common grip devices include adhesive rings, pop-up buttons, and rotating straps. However, adhesive rings may leave adhesive residue upon removal and can interfere with wireless charging when overlapping with the MagSafe area. Furthermore, placing both the grip and card storage area on the back of the case increases protrusion, affecting portability, and their functions may interfere with each other, severely limiting design freedom. Therefore, existing technologies have limitations in simultaneously satisfying the needs of wireless charging, card storage, and grip functionality. In particular, phone cases that integrate Apple's MagSafe charging mode and provide card storage are currently unavailable. Therefore, there is an urgent need to develop an innovative phone case device that can simultaneously achieve these functions. Utility Model Content

[0005] The purpose of this invention is to provide a protective case for smart devices to solve the problems mentioned in the background art.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a protective case for smart devices, including a main body, a side part, a first guide hole, a second guide hole, a charging part, a card storage area, and a variable pad. The side part has a ring-shaped design, covering the side, upper surface, and lower surface of the main body. The first guide hole is opened in the middle of the back surface of the main body, and the second guide hole is located in the middle circle of the first guide hole. The charging part is located on the back of the main body, and a variable pad located on the back of the main body is provided in the middle of the charging part. The card storage area is installed on both sides of the main body.

[0008] Preferably, the main body includes a camera slot at one end, and the main body has upward and downward protruding latching ribs at the front ends of the upper and lower surfaces, respectively. The latching ribs can extend along the upper and lower surfaces of the main body. The latching ribs include a first latching rib on the upper surface of the main body and a second latching rib on the lower surface of the main body, and a curved portion is provided between the two sets of latching ribs.

[0009] Preferably, the side portion forms a snap-fit ​​groove in the joint area of ​​the body portion, and the snap-fit ​​groove may include a curved groove corresponding to the shape of the snap-fit ​​rib, and the snap-fit ​​groove includes a first snap-fit ​​groove disposed on the upper surface of the side portion and a second snap-fit ​​groove disposed on the lower surface of the side portion.

[0010] Preferably, side frames are installed on both sides of the side portion, and a volume button for volume adjustment is installed on one side of the side frame.

[0011] Preferably, a first upper guide hole is installed at the upper end of the first guide hole, and the first guide hole can be sequentially connected from one end to the other end to the first upper guide hole, the first insertion hole and the first lower guide hole. A first connecting protrusion is connected between the first guide hole and the first insertion hole, and a second connecting protrusion is connected between the first insertion hole and the first lower guide hole. A first protrusion is provided on the edge of the first lower guide hole, a second protrusion is provided below the first protrusion, and a protrusion groove is installed below the second protrusion.

[0012] Preferably, the second guide hole may include a second upper guide hole and a second lower guide hole, wherein the second upper guide hole is located at the top of the second guide hole and the second lower guide hole is located at the bottom edge of the second guide hole, a third protrusion may be provided on the inner side of the second upper guide hole, and an inner groove is provided on the upper middle edge of the second guide hole, and a second insertion hole is provided between the first upper guide hole and the second lower guide hole.

[0013] Preferably, the charging part includes an internally installed magnet arrangement slot, and the charging part is located in the area for charging the phone case, and is charged through contact with an external charging terminal.

[0014] Preferably, one end of the surface of the variable gasket is provided with a circular fixing part, and a fixing rivet is installed inside the fixing part, and a fixing pin is installed on one side of the fixing part. The other end of the variable gasket is provided with a circular moving part, and a moving pin is provided on one side of the moving part, and a moving rivet is provided on one side of the moving pin.

[0015] Preferably, the card storage area includes a fixed protrusion and an insertion opening, with a notch formed below the insertion opening. A first upper fixed protrusion is provided in the upper region of the card insertion gap, and a second upper fixed protrusion is provided offset from the first upper fixed protrusion in the card insertion direction. A first lower fixed protrusion is provided in the lower region of the card insertion gap, and a second lower fixed protrusion is provided offset from the first lower fixed protrusion in the card insertion direction. A first side fixed protrusion is provided on the inner edge of the card storage area, and a second side fixed protrusion is provided below the first side fixed protrusion. A third side fixed protrusion is provided on the back of the main body.

[0016] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0017] 1. When a smart device is used with a protective case, users can achieve stable MagSafe wireless charging even when the device is stored in a card holder, while minimizing issues such as reduced charging efficiency and overheating. This is because the internal magnet arrangement and shielding structure of the phone case are designed to maintain charging performance;

[0018] 2. When using a smart device with a protective case, the card storage area ensures cards are securely held, providing the convenience of not needing to carry an extra wallet. The back of the phone case features a foldable, adjustable pad that allows users to hold their smartphone stably. Users can adjust the direction of the adjustable pad as needed, using it as a vertical or horizontal stand to improve convenience in different scenarios such as watching videos or making video calls.

[0019] 3. When the smart device is in use with the protective case, the card storage area is integrated with the main body of the phone case, minimizing back protrusion. When not in use, the adjustable pad fits snugly against the main body of the phone case, maintaining a slim profile and portability. Therefore, users can simultaneously satisfy their needs for functionality and aesthetic design. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0022] Figure 1 This is a rear perspective view of the mobile phone case device in an embodiment of the present invention.

[0023] Figure 2 This is a disassembled perspective view of the mobile phone case device in an embodiment of the present invention.

[0024] Figure 3 This is a front view of the main body of the mobile phone case device in an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram showing the first guide hole and the second guide hole provided on the front of the main body in an embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram showing the second guide hole provided at the rear of the main body of the mobile phone case device in an embodiment of the present invention.

[0027] Figure 6 This is a perspective view of one side of the main body of the mobile phone case device in an embodiment of the present invention.

[0028] Figure 7 This is a perspective view of the other side of the main body of the mobile phone case device in an embodiment of the present invention.

[0029] Figure 8 This is a front perspective view of the variable gasket of the mobile phone case device in an embodiment of the present invention.

[0030] Figure 9 This is a side cross-sectional view of the first state of the mobile phone case device in an embodiment of the present invention.

[0031] Figure 10 This is a bottom view of the first state of the mobile phone case device in an embodiment of the present invention.

[0032] Figure 11 This is a side cross-sectional view of the second state of the mobile phone case device in an embodiment of the present invention.

[0033] Figure 12 This is a bottom view of the second state of the mobile phone case device in an embodiment of the present invention.

[0034] Figure 13 This is a side cross-sectional view of the third state of the mobile phone case device in an embodiment of the present invention.

[0035] Figure 14 This is a bottom view of the third state of the mobile phone case device in an embodiment of the present invention.

[0036] Figure 15 This is a rear perspective view of a mobile phone case device according to another embodiment of the present invention.

[0037] Figure 16 This is a front view of a mobile phone case device according to another embodiment of the present invention.

[0038] Figure 17 This is a rear disassembly perspective view of a mobile phone case device according to another embodiment of the present invention.

[0039] Figure 18 This is a frontal disassembly perspective view of a mobile phone case device in another embodiment of the present invention.

[0040] Figure 19 This is a side cross-sectional view showing the joint between the main body of the mobile phone case device and the side module in another embodiment of the present invention.

[0041] In the picture:

[0042] 1100, Main body; 1110, Camera slot; 1130, Clip rib; 1131, Bending portion; 1200, Side side; 1210, Side frame; 1211, Volume button; 1230, Clip groove; 1300, First guide hole; 1310, First upper guide hole; 1311, First connecting protrusion; 1320, First insertion hole; 1321, Second connecting protrusion; 1330, First lower guide hole; 1331, First protrusion; 1332, Second protrusion; 1340, Protrusion groove; 1400, Second guide hole; 1410, Second upper guide hole; 1411, Third protrusion; 1420, Inner groove; 1430, Second insertion hole ; 1440, Second lower guide hole; 1500, Charging section; 1510, Magnet arrangement slot; 1600, Card storage area; 1610, Insertion opening; 1620, Cut groove; 1631, First upper fixing protrusion; 1632, Second upper fixing protrusion; 1641, First lower fixing protrusion; 1642, Second lower fixing protrusion; 1651, First side fixing protrusion; 1652, Second side fixing protrusion; 1653, Third side fixing protrusion; 2000, Variable washer; 2100, Fixing part; 2110, Fixing pin; 2120, Fixing rivet; 2200, Moving part; 2210, Moving pin; 2220, Moving rivet. Detailed Implementation

[0043] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0044] Please see Figures 1-19 A protective case for a smart device includes a main body 1100, a side part 1200, a first guide hole 1300, a second guide hole 1400, a charging part 1500, a card storage area 1600, and a variable pad 2000. The main body 1100 includes a camera slot 1110 opened at one end, and the main body 1100 has upward and downward protruding buckle ribs 1130 respectively provided at the front end of the upper and lower surfaces. The buckle ribs 1130 can extend along the upper and lower surfaces of the main body 1100. The buckle ribs 1130 include a first buckle rib provided on the upper surface of the main body 1100 and a second buckle rib provided on the lower surface of the main body 1100, and a curved portion 1131 is provided between the two sets of buckle ribs 1130.

[0045] The protective case for smart devices of this invention comprises a body portion 1100 and a side portion 1200 that are integrally designed. Furthermore, the body portion 1100 and the side portion 1200 can be made of different materials through double injection molding. The body portion 1100 can be made of a material with higher strength than the side portion 1200. For example, the body portion 1100 may include one or more materials selected from polycarbonate (PC), metal, and wood.

[0046] For details, please refer to the following: Figure 2 and Figure 6 As shown, the side portion 1200 has a ring-shaped design and covers the side, upper surface and lower surface of the main body portion 1100. The side portion 1200 forms a snap-fit ​​groove 1230 in the mating area of ​​the main body portion 1100. The snap-fit ​​groove 1230 may include a curved groove corresponding to the shape of the snap-fit ​​rib 1130. The snap-fit ​​groove 1230 includes a first snap-fit ​​groove provided on the upper surface of the side portion 1200 and a second snap-fit ​​groove provided on the lower surface of the side portion 1200.

[0047] Side frames 1210 are installed on both sides of the side portion 1200, and a volume button 1211 for volume adjustment is installed on one side of the side frame 1210.

[0048] The present invention relates to a protective case for smart devices. The volume button 1211 is used to adjust the volume of the mobile phone, and the buckle slot 1230 and the buckle rib 1130 are designed to fix the storage card.

[0049] For details, please refer to the following: Figure 3 , Figure 4 , Figure 10 and Figure 11 As shown, a first guide hole 1300 is formed in the middle of the back surface of the main body 1100. A first upper guide hole 1310 is installed at the upper end of the first guide hole 1300. The first guide hole 1300 can be connected sequentially from one end to the other to the first upper guide hole 1310, the first insertion hole 1320 and the first lower guide hole 1330. A first connecting protrusion 1311 is connected between the first guide hole 1300 and the first insertion hole 1320. A second connecting protrusion 1321 is connected between the first insertion hole 1320 and the first lower guide hole 1330. A first protrusion 1331 is provided on the edge of the first lower guide hole 1330. A second protrusion 1332 is provided below the first protrusion 1331. A protrusion groove 1340 is installed below the second protrusion 1332.

[0050] The protective shell for intelligent devices of this utility model has a first upper guide hole 1310 whose shape corresponds to the shape of a fixing rivet 2120. For example, if the fixing rivet 2120 is circular, then the first upper guide hole 1310 can also be circular. In this case, the diameter of the first upper guide hole 1310 can correspond to the diameter of the fixing rivet 2120. The fixing rivet 2120 can be combined with the first upper guide hole 1310 to fix one end of the variable washer 2000, ensuring that it is fixed at one end of the guide portion. At least a portion of the first upper guide hole 1310 can vertically overlap with at least a portion of the second upper guide hole 1410 of the second guide hole 1400. Therefore, at least a portion of the first upper guide hole 1310 and at least a portion of the second upper guide hole 1410 can communicate. The size of the first upper guide hole 1310 can be the same as the size of the fixing rivet 2120, and the first lower guide hole 1330 can be elliptical or rectangular. The major axis of the first lower guide hole 1330 can extend along the major axis of the first guide hole 1300. The length of the major axis of the first lower guide hole 1330 can exceed half the length of the major axis of the first guide hole 1300. The minor axis of the first lower guide hole 1330 can be equal to the diameter of the movable rivet 2220, and is L2. Therefore, at least a portion of the outer side of the movable rivet 2220 can contact at least a portion of the inner side of the first lower guide hole 1330. The movable rivet 2220 can reciprocate along the major axis of the first lower guide hole 1330, wherein the first protrusion 1331 can be provided within the moving area of ​​the first lower guide hole 1330 and protrude toward the center of the first lower guide hole 1330. The first protrusion 1331 can be provided within the moving area of ​​the movable rivet 2220 of the variable washer 2000. The first protrusion 1331 can be provided at multiple intervals along the major axis of the first lower guide hole 1330. The first protrusions 1331 can be respectively disposed on both sides of the inner surface of the first lower guide hole 1330, facing each other. When the movable rivet 2220 passes through the first protrusions 1331 in the moving area, the protrusions can support the outer surface of the movable rivet 2220, thereby fixing the movable rivet 2220 and keeping the variable washer 2000 in a bent state. The first protrusions 1331 can be provided with multiple intervals along the long axis of the first lower guide hole 1330 as needed. At this time, the movable rivet 2220 can be fixed in a set position according to the number of first protrusions 1331 and reciprocate along the first lower guide hole 1330; wherein the second protrusion 1332 can be disposed in the fixed area of ​​the first lower guide hole 1330 and protrude towards the center of the first lower guide hole 1330. The second protrusion 1332 can be used to fix the movable rivet 2220 of the variable washer 2000 (described later) in the fixed area. The second protrusion 1332 can be set at a predetermined position within the fixed area of ​​the first lower guide hole 1330.The second protrusions 1332 can be respectively disposed on both sides of the inner side of the first lower guide hole 1330, and are symmetrically disposed with respect to each other along the minor axis of the first lower guide hole 1330. The second protrusions 1332 cooperate with the movable rivet 2220 of the variable shim 2000, so that the variable shim 2000 can be kept in an unfolded state within a specific fixed area of ​​the second lower guide hole 1440; wherein the first insertion hole 1320 can be disposed between the first upper guide hole 1310 and the second lower guide hole 1440.

[0051] For details, please refer to the following: Figure 9 , Figure 10 and Figure 14 As shown, the second guide hole 1400 is located at the middle circular position of the first guide hole 1300. The second guide hole 1400 may include a second upper guide hole 1410 and a second lower guide hole 1440. The second upper guide hole 1410 is located at the top of the second guide hole 1400, and the second lower guide hole 1440 is located at the bottom edge of the second guide hole 1400. A third protrusion 1411 may be provided on the inner side of the second upper guide hole 1410, and an inner groove 1420 is provided on the upper middle edge of the second guide hole 1400. A second insertion hole 1430 is provided between the first upper guide hole 1310 and the second lower guide hole 1440.

[0052] In this invention, a protective case for a smart device includes a second guide hole 1400 that communicates with a first guide hole 1300. The second guide hole 1400 can be located on the back of the main body 1100 of the phone case and communicates with the outside. The second guide hole 1400 can communicate with at least a portion of the first guide hole 1300. In other words, the guide portion can be formed by combining the first guide hole 1300 and the second guide hole 1400 into a single integrated groove.

[0053] For details, please refer to the following: Figure 2 and Figure 3 As shown, the charging part 1500 is located on the back of the main body 1100. The charging part 1500 includes an internally installed magnet arrangement slot 1510 and is disposed in the area for charging the phone case. It is charged by contacting an external charging terminal.

[0054] This utility model discloses a protective case for smart devices. The charging section 1500 is located in the area for charging the phone case. This charging area may vary depending on the type of smart device, and its specific location can be adjusted according to the design. The magnet can be made of a magnetic material. For example, the magnet can be a neodymium magnet, but it is not limited to this; any magnetic metal material can also be used. The magnet can be placed in a magnet arrangement groove 1510 of the phone case. The magnet can be arranged in a ring shape. When the magnet is in a ring shape, multiple magnets can be connected together to form a ring. The ring can not only be circular, but can also be formed with intervals along the circumferential direction as needed. The magnet arrangement groove 1510 can be located on the front or back of the phone case body 1100 for placing the magnet. The shape of the magnet arrangement groove 1510 can correspond to the shape of the magnet. The magnet arrangement groove 1510 can have a ring shape. The groove depth of the magnet arrangement groove 1510 can correspond to the thickness of the magnet. The magnet arrangement groove 1510 and the guide portion should avoid overlapping in the vertical direction. In the illustration, the magnet arrangement groove 1510 is provided on the front of the body portion 1100, but it can also be provided on the back of the phone case if needed. If necessary, the opposite area of ​​the magnet arrangement groove 1510 can be formed with protrusions corresponding to the shape of the magnets to achieve a fixing effect.

[0055] For details, please refer to the following: Figure 1 , Figure 3 , Figure 7 and Figure 19 As shown, the card storage area 1600 is installed on both sides of the body portion 1100. The card storage area 1600 includes a fixing protrusion and an insertion opening 1610, and a notch 1620 is formed below the insertion opening 1610. A first upper fixing protrusion 1631 is provided in the upper region of the card insertion slot, and a second upper fixing protrusion 1632 is offset from the first upper fixing protrusion 1631 in the card insertion direction. A first lower fixing protrusion 1641 is provided in the lower region of the card insertion slot, and a second lower fixing protrusion 1642 is offset from the first lower fixing protrusion 1641 in the card insertion direction. A first side fixing protrusion 1651 is provided on the inner side of the edge of the card storage area 1600, and a second side fixing protrusion 1652 is provided below the first side fixing protrusion 1651. A third side fixing protrusion 1653 is provided on the back of the body portion 1100.

[0056] This utility model discloses a protective case for smart devices. A card storage area 1600 is located on one side of the main body 1100 and side portion 1200 of the case, providing space for selective card insertion. The card storage area 1600 can be provided as a slit on one side of an extended area of ​​the main body 1100 and side portion 1200. In this case, a gap can be left between one end of the main body 1100 and one end of the side portion 1200, allowing the user to insert a card into the slit formed between the main body 1100 and the side portion 1200. The cut area for card insertion is defined as the slit, and an insertion opening 1610 is provided in the lower region of the slit in the card storage area 1600, serving as a manual card insertion access space, allowing the user to easily insert and remove cards using their fingers. The insertion opening 1610 can be located between one side of the main body 1100 and one side of the side portion 1200, with a predetermined distance between them. The insertion opening 1610 gradually narrows towards the center of the phone case along one side of the main body 1100, forming a trapezoidal hole. A notch 1620 is formed below the insertion opening 1610, cut downwards into a groove shape, and has an elastic area so that the user can locally enlarge the opening by applying pressure. The width of the notch 1620 is the same as the insertion opening 1610, but its length is shorter. This allows the main body 1100 of the phone case to further separate from the side portion 1200 when the user inserts a card, thereby improving the convenience of inserting the card.

[0057] For details, please refer to the following: Figure 8 , Figure 9 , Figure 11 , Figure 12 and Figure 13 As shown, a variable pad 2000 is provided in the middle of the charging part 1500, located on the back of the main body 1100. A circular fixing part 2100 is provided at one end of the surface of the variable pad 2000, and a fixing rivet 2120 is installed inside the fixing part 2100. A fixing pin 2110 is installed on one side of the fixing part 2100. A circular moving part 2200 is provided at the other end of the variable pad 2000, and a moving pin 2210 is provided on one side of the moving part 2200. A moving rivet 2220 is provided on one side of the moving pin 2210.

[0058] The protective shell for intelligent devices of this utility model includes a first guide hole 1300, which serves as a hole for the fixing part 2100 and the moving part 2200 of the variable gasket 2000. The first guide hole 1300 can overlap with the second guide hole 1400 in the vertical direction. The first guide hole 1300 may include a first upper guide hole 1310 for fixing the variable gasket 2000 and a first lower guide hole 1330 for moving the variable gasket 2000 to achieve deformation. The first guide hole 1300 can be sequentially connected from one end to the other, including the first upper guide hole 1310, the first insertion hole 1320, and the first lower guide hole 1330. The first guide holes 1300 can be horizontally overlapped along their long axis, and the first upper guide hole 1310 can be located at one end of the first guide hole 1300. The shape of the first upper guide hole 1310 can correspond to the shape of the fixing rivet 2120. For example, if the fixing rivet 2120 is circular, then the first upper guide hole 1310 can also be circular. In this case, the diameter of the first upper guide hole 1310 can correspond to the diameter of the fixing rivet 2120. The fixing rivet 2120 can engage with the first upper guide hole 1310 to fix one end of the variable washer 2000, ensuring that it is fixed at one end of the guide portion. At least a portion of the first upper guide hole 1310 can perpendicularly overlap with at least a portion of the second upper guide hole 1410 of the second guide hole 1400. Therefore, at least a portion of the first upper guide hole 1310 and at least a portion of the second upper guide hole 1410 can communicate. The size of the first upper guide hole 1310 can be the same as the size of the fixing rivet 2120.

[0059] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A protective case for a smart device, comprising a main body (1100), a side portion (1200), a first guide hole (1300), a second guide hole (1400), a charging portion (1500), a card storage area (1600), and a variable pad (2000), characterized in that: The side portion (1200) is designed in a ring shape, covering the side, upper surface and lower surface of the main body portion (1100), and the first guide hole (1300) is opened in the middle of the back surface of the main body portion (1100), and the second guide hole (1400) is located in the middle circle of the first guide hole (1300). The charging portion (1500) is located on the back of the main body portion (1100), and a variable pad (2000) located on the back of the main body portion (1100) is provided in the middle of the charging portion (1500). The card storage area (1600) is installed on both sides of the main body portion (1100).

2. The protective case for a smart device according to claim 1, characterized in that: The main body (1100) includes a camera slot (1110) opened at one end, and the main body (1100) has upward and downward protruding latching ribs (1130) respectively provided at the front end of the upper and lower surfaces. The latching ribs (1130) can extend along the upper and lower surfaces of the main body (1100). The latching ribs (1130) include a first latching rib provided on the upper surface of the main body (1100) and a second latching rib provided on the lower surface of the main body (1100), and a curved portion (1131) is provided between the two sets of latching ribs (1130).

3. A protective case for a smart device according to claim 2, characterized in that: The side portion (1200) forms a snap-fit ​​groove (1230) in the joint area of ​​the body portion (1100), and the snap-fit ​​groove (1230) may include a curved groove corresponding to the shape of the snap-fit ​​rib (1130), and the snap-fit ​​groove (1230) includes a first snap-fit ​​groove provided on the upper surface of the side portion (1200) and a second snap-fit ​​groove provided on the lower surface of the side portion (1200).

4. A protective case for a smart device according to claim 3, characterized in that: Side frames (1210) are installed on both sides of the side portion (1200), and a volume button (1211) for volume adjustment is installed on one side of the side frame (1210).

5. A protective case for a smart device according to claim 1, characterized in that: The upper end of the first guide hole (1300) is provided with a first upper guide hole (1310), and the first guide hole (1300) can be connected sequentially from one end to the other end to the first upper guide hole (1310), the first insertion hole (1320) and the first lower guide hole (1330). A first connecting protrusion (1311) is connected between the first guide hole (1300) and the first insertion hole (1320), and a second connecting protrusion (1321) is connected between the first insertion hole (1320) and the first lower guide hole (1330). A first protrusion (1331) is provided on the edge of the first lower guide hole (1330), and a second protrusion (1332) is provided below the first protrusion (1331). A protrusion groove (1340) is installed below the second protrusion (1332).

6. A protective case for a smart device according to claim 5, characterized in that: The second guide hole (1400) may include a second upper guide hole (1410) and a second lower guide hole (1440), with the second upper guide hole (1410) located at the top of the second guide hole (1400) and the second lower guide hole (1440) located at the bottom edge of the second guide hole (1400). A third protrusion (1411) may be provided on the inner side of the second upper guide hole (1410), and an inner groove (1420) is provided on the upper middle edge of the second guide hole (1400). A second insertion hole (1430) is provided between the first upper guide hole (1310) and the second lower guide hole (1440).

7. The protective case for an intelligent device according to claim 1, wherein: The charging section (1500) includes an internally installed magnet arrangement slot (1510), and the charging section (1500) is located in the area for charging the phone case and is charged through contact with an external charging terminal.

8. A protective case for a smart device according to claim 1, characterized in that: One end of the surface of the variable gasket (2000) is provided with a circular fixing part (2100), and a fixing rivet (2120) is installed inside the fixing part (2100). A fixing pin (2110) is installed on one side of the fixing part (2100). The other end of the variable gasket (2000) is provided with a circular moving part (2200), and a moving pin (2210) is provided on one side of the moving part (2200). A moving rivet (2220) is provided on one side of the moving pin (2210).

9. A protective case for a smart device according to claim 1, characterized in that: The card storage area (1600) includes a fixed protrusion and an insertion opening (1610), and a notch (1620) is formed below the insertion opening (1610). A first upper fixed protrusion (1631) is provided in the upper region of the card insertion slot, and a second upper fixed protrusion (1632) is offset from the first upper fixed protrusion (1631) in the card insertion direction. A first lower fixed protrusion (1641) is provided in the lower region of the card insertion slot, and a second lower fixed protrusion (1642) is offset from the first lower fixed protrusion (1641) in the card insertion direction. A first side fixed protrusion (1651) is provided on the inner side of the edge of the card storage area (1600), and a second side fixed protrusion (1652) is provided below the first side fixed protrusion (1651). A third side fixed protrusion (1653) is provided on the back of the main body (1100).

Images