Mobile terminal protective case

By using a flexible locking mechanism in the mobile terminal protective case, the problem of unstable connection between the back panel and the frame is solved, achieving a stable connection between the back panel and the frame and preventing accidental detachment.

CN224305797UActive Publication Date: 2026-05-29PGYTECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PGYTECH CO LTD
Filing Date
2025-05-12
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing mobile terminal protective cases have poor stability in the connection between the back panel and the frame, making them prone to detachment and causing the mobile terminal to fall off unexpectedly.

Method used

The back panel is equipped with a locking mechanism, including at least two flexible locking pins. The pins can switch between locked and unlocked positions under elastic action to ensure a stable connection between the back panel and the frame.

Benefits of technology

It improves the assembly stability of the back panel and frame, prevents the back panel from accidentally falling off, and reduces the risk of the mobile terminal accidentally falling out of the protective case.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of protective shell, more particularly to a kind of mobile terminal protective shell, it includes frame, backboard and snap mechanism, backboard is detachably set in frame, to form the containing cavity for containing mobile terminal;Snap mechanism includes at least two snaps, at least two snaps are elastically arranged in at least one of frame and backboard, snap has locking position and unlocking position;Wherein, under the condition that snap is not subjected to external force, snap can be moved to locking position under the action of elasticity, and can be clamped with the other of frame and backboard;Under the condition that snap is subjected to external force to overcome the action of elasticity and moves to unlocking position, snap is separated from the other of frame and backboard.The mobile terminal protective shell can improve the stability of backboard assembled in frame, effectively improve the problem that backboard is easily accidentally dropped from frame, and improve the problem that mobile terminal is accidentally dropped from protective shell.
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Description

Technical Field

[0001] This utility model relates to the field of protective case technology, and more specifically, to a mobile terminal protective case. Background Technology

[0002] Protective cases for mobile terminals, such as phone cases and tablet cases, are made of flexible materials like silicone or rigid materials like plastic and metal. Since rigid materials like plastic and metal lack elasticity, protective cases typically require a separate frame and back panel. The combination of the frame and back panel provides protection and enclosure for the mobile terminal.

[0003] However, the backplate assembly provided by the related technology has poor stability when assembled on the frame, and is prone to falling off the frame, which may even cause the mobile terminal to be unable to be stably assembled inside the protective case. Utility Model Content

[0004] The purpose of this utility model is to provide a mobile terminal protective case that can improve the stability of the back panel assembly on the frame, effectively improve the problem of the back panel easily falling off the frame accidentally, and improve the problem of the mobile terminal accidentally falling off the protective case.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] In a first aspect, this utility model provides a mobile terminal protective case, comprising:

[0007] frame;

[0008] A back panel, which is detachably disposed on the frame to form a receiving cavity for accommodating a mobile terminal; and;

[0009] A latching mechanism, comprising at least two latches, wherein the at least two latches are resiliently disposed on at least one of the frame and the back panel, and the latches have a locked position and an unlocked position; wherein...

[0010] When the latch is not subjected to external force, it can move to the locked position under elastic action and engage with the other of the frame and the back panel.

[0011] When the latch is subjected to external force to overcome elasticity and moves to the unlock position, the latch separates from either the frame or the back panel.

[0012] In an optional embodiment, the locking mechanism further includes a first elastic element, through which the locking pin is elastically disposed on either the frame or the back panel.

[0013] In an alternative embodiment, one of the frame and the back panel is provided with a groove, and the latch is slidably disposed in the groove.

[0014] In an optional embodiment, the frame is provided with a groove, and the groove opening is distributed facing the back plate, and the latch is configured to be fitted into the groove from the groove opening.

[0015] In an optional embodiment, the backplate includes a backplate body and a hook connected to the backplate body, the hook being detachably inserted into the slide groove from the slot opening.

[0016] In an alternative implementation, the backplate body covers the opening of the slide groove.

[0017] In an optional embodiment, the locking mechanism further includes an actuating element, one of the frame and the back plate being provided with an elongated hole communicating with the slide groove; the actuating element is slidably inserted into the elongated hole and connected to the locking pin.

[0018] The actuating element can drive the locking pin to overcome its elasticity and slide towards the unlocked position under the action of external force.

[0019] In an optional embodiment, one of the frame and the back plate is further provided with a clearance groove communicating with the slide, the opening of the clearance groove being distributed towards the receiving cavity; one end of the toggle member protrudes from the elongated hole, and the other end of the toggle member protrudes from the clearance groove.

[0020] In an optional implementation, the frame includes a first side, a second side, a third side, and a fourth side that are connected in sequence, with at least two latches elastically disposed on the first side.

[0021] In an alternative implementation, one latch is configured to move relative to the frame in a first direction to an unlocked position; the other latch is configured to move relative to the frame in a second direction to an unlocked position; wherein the first direction is opposite to the second direction.

[0022] In an alternative embodiment, the back plate has a first end and a second end that are relatively distributed, the first end of the back plate being detachably inserted with a latch, and the second end of the back plate being detachably inserted with a third side.

[0023] In an optional embodiment, the second end of the back plate is inserted into the third side along the first predetermined direction, and the first end of the back plate is engaged with a latch along the second predetermined direction; the first predetermined direction and the second predetermined direction are distributed at an angle.

[0024] In an optional implementation, the first side and the third side have the same length, and the second side and the fourth side have the same length; the length of the first side is greater than the length of the second side.

[0025] In an optional embodiment, the mobile terminal protective case further includes a rubber pad disposed on the inner sidewall of the frame.

[0026] In an optional embodiment, the mobile terminal protective case further includes a second elastic member disposed on the back plate and located within the receiving cavity.

[0027] In an optional embodiment, the mobile terminal protective case further includes a lanyard pin, which is connected to the frame; and / or,

[0028] The mobile terminal protective case also includes a touch module, which is disposed on the frame; and / or,

[0029] The frame has positioning slots for assembling extension parts.

[0030] The beneficial effects of the mobile terminal protective case of this utility model embodiment include: the frame and back panel of the mobile terminal protective case provided by this utility model embodiment can be assembled together by at least two latches of the latching mechanism, and the latches can be stably held in the locked position that connects the frame and the back panel under elastic action; in this way, the stability of the back panel being assembled to the frame can be improved by at least two latches elastically set on the frame or the back panel, effectively improving the problem that the back panel is easy to accidentally fall off the frame, and improving the problem that the mobile terminal accidentally falls off the protective case. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of the mobile terminal and the mobile terminal protective case in the embodiments of this utility model;

[0033] Figure 2 This is a schematic diagram of the mobile terminal protective shell in the embodiment of this utility model from a first-view perspective;

[0034] Figure 3 This is a schematic diagram of the mobile terminal protective shell in the embodiment of this utility model from a second perspective;

[0035] Figure 4 for Figure 3 Enlarged view of section IV;

[0036] Figure 5 This is a schematic diagram of the frame and locking mechanism in an embodiment of the present utility model;

[0037] Figure 6 for Figure 5 Enlarged view of section VI;

[0038] Figure 7 This is an exploded view of the mobile terminal protective shell in the embodiment of this utility model from a first perspective.

[0039] Figure 8 This is an exploded view of the mobile terminal protective shell in the embodiment of this utility model from a second perspective.

[0040] Figure 9 This is an exploded structural diagram of the frame and locking mechanism in an embodiment of this utility model;

[0041] Figure 10 for Figure 9 Enlarged view at point X;

[0042] Figure 11 This is a schematic diagram of the mobile terminal protective shell in a third-person perspective in an embodiment of this utility model;

[0043] Figure 12 for Figure 11 A cross-sectional view along the AA direction;

[0044] Figure 13 This is an exploded view of the mobile terminal protective shell in the embodiment of this utility model from a third-person perspective;

[0045] Figure 14 for Figure 13 Enlarged view of section XIV;

[0046] Figure 15 This is a schematic diagram of the structure of the back plate and the second elastic element in the embodiment of this utility model;

[0047] Figure 16 for Figure 5 A magnified view of the XVI region.

[0048] Icons: 010 - Mobile terminal protective case; 100 - Frame; 101 - Slide groove; 102 - Elongated hole; 103 - Clearance groove; 104 - First stepped surface; 105 - First through hole; 106 - Second through hole; 110 - First side; 120 - Second side; 130 - Third side; 131 - Slot; 132 - Slot wall; 140 - Fourth side; 200 - Back plate; 210 - Back plate body; 220 - Hook; 230 - 300 - Insertion protrusion; 400 - Mobile terminal; 410 - Locking pin mechanism; 411 - Second step surface; 420 - First elastic element; 430 - Actuating element; 510 - Rubber pad; 511 - Rubber pad body; 512 - Protrusion; 520 - Second elastic element; 530 - Hanging cord pin; 540 - Touch module; 550 - Positioning groove; a - First direction; b - Second direction; c - First setting direction; d - Second setting direction. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0050] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0051] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0052] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0053] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0054] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0055] Please refer to Figure 1 and Figure 2 This embodiment provides a mobile terminal protective case 010, which can be used to protect mobile terminals 300 such as mobile phones and tablets.

[0056] The mobile terminal protective case 010 includes a frame 100 and a back panel 200 detachably connected to the frame 100. When the back panel 200 is connected to the frame 100, the back panel 200 and the frame 100 together form a receiving cavity for accommodating the mobile terminal 300. Since the back panel 200 and the frame 100 are detachably connected, when using the mobile terminal protective case 010 to wrap and protect the mobile terminal 300, the frame 100 can be first placed on the outer periphery of the mobile terminal 300, and then the back panel 200 can be connected to the frame 100, covering the back of the mobile terminal 300. When it is necessary to remove the mobile terminal 300, the back panel 200 can be removed from the frame 100 first, and then the mobile phone can be taken out from the frame 100.

[0057] In order to improve the connection stability between the back panel 200 and the frame 100 of this split-type mobile terminal protective case 010, thereby reliably protecting the mobile terminal 300 and improving the problem of the mobile terminal 300 accidentally falling out.

[0058] Please refer to Figure 3 and Figure 4 The mobile terminal protective case 010 of this embodiment also includes a locking mechanism 400, which includes at least two locking pins 410. The at least two locking pins 410 are elastically disposed on the frame 100, and the locking pins 410 have a locked position and an unlocked position. When the locking pins 410 are not subjected to external force, the locking pins 410 can move to the locked position under elastic action and can engage with the back panel 200. The back panel 200 is connected to the frame 100 through the locking pins 410. When the locking pins 410 are subjected to external force to overcome the elastic action and move to the unlocked position, the locking pins 410 separate from the back panel 200, and the back panel 200 can be detached from the frame 100.

[0059] The back panel 200 and the frame 100 are assembled together by at least two latches 410 of the latching mechanism 400, and the latches 410 are configured to be stably held in the locked position that connects the frame 100 and the back panel 200 under elastic action; in this way, the stability of the back panel 200 assembled with the frame 100 can be improved by at least two latches 410 elastically set on the frame 100, effectively improving the problem that the back panel 200 is easy to accidentally fall off the frame 100, and improving the problem that the mobile terminal 300 accidentally falls off the protective case.

[0060] It should be understood that in other embodiments, the latch 410 may also be elastically disposed on the back plate 200. When the latch 410 is not subjected to external force, the latch 410 can move to the locked position under elastic action and can engage with the frame 100. The back plate 200 and the frame 100 are connected by the latch 410. When the latch 410 is subjected to external force to overcome the elastic action and moves to the unlocked position, the latch 410 separates from the frame 100, and the frame 100 and the back plate 200 can be separated from each other.

[0061] In other embodiments, the number of pins 410 of the pin mechanism 400 may be three, four, etc., and no specific limitation is made here.

[0062] Optionally, the locking mechanism 400 further includes a first elastic element 420, through which the locking pin 410 is elastically disposed on the frame 100. When the locking pin 410 is subjected to an external force and moves to the unlocked position, the locking pin 410 compresses the first elastic element 420; when the external force on the locking pin 410 disappears, the locking pin 410 will return to the locked position under the elastic action of the first elastic element 420. This configuration ensures the reliability of the locking pin 410 returning to the locked position.

[0063] Furthermore, the first elastic element 420 is configured to make the locking pin 410 always tend to move toward the locked position. This configuration further ensures that the locking pin 410 can stably engage with the back plate 200 under the elastic action of the first elastic element 420.

[0064] It should be understood that in other embodiments, when the locking pin 410 moves to the unlocked position under the action of an external force, the locking pin 410 will cause the first elastic element 420 to be stretched.

[0065] In other embodiments, the locking pin 410 may be made of a resilient material, thus eliminating the need for an additional first elastic element 420 to provide elasticity for the reset of the locking pin 410.

[0066] The first elastic element 420 includes, but is not limited to, a tension spring, a torsion spring, or an elastic rubber block.

[0067] To improve the stability of the latch 410 movably mounted on the frame 100, ensuring that the latch 410 can stably switch between the locked and unlocked positions; please refer to... Figure 5 and Figure 6 The frame 100 is provided with a slide groove 101, and the latch 410 is slidably disposed in the slide groove 101.

[0068] Alternatively, please refer to Figure 6 and Figure 7The slots of the slide 101 are distributed facing the back plate 200, and the locking pin 410 is configured to be fitted into the slide 101 from the slots of the slide 101. When the locking pin 410 is fitted into the slide 101, the back plate 200 is not connected to the frame 100. By setting the slots of the slide 101 to face the back plate 200, the slots of the slide 101 are distributed in a wider position, which makes it easier to fit the locking pin 410 into the slide 101, thus ensuring the ease of operation of fitting the locking pin 410 into the slide 101.

[0069] Of course, in other embodiments, the groove opening of the slide 101 may also be configured to be distributed toward the receiving cavity.

[0070] Alternatively, please refer to Figure 7 and Figure 8 The back panel 200 includes a back panel body 210 and a latch 220 connected to the back panel body 210. The latch 220 is detachably inserted into the slide groove 101 from the slot opening. The back panel body 210 is used to prevent the mobile terminal 300 placed in the receiving cavity from falling out of the receiving cavity, and the back panel body 210 covers the slot opening of the slide groove 101. By using the back panel body 210 to cover the slot opening of the slide groove 101, the problem of the latch 410 accidentally falling out of the slot opening of the slide groove 101 can be improved, ensuring the reliability of the connection between the back panel 200 and the frame 100 through the latch 410; on the other hand, it also ensures aesthetics.

[0071] Alternatively, please refer to Figure 9 and Figure 10 The slide groove 101 has a first stepped surface 104, and the locking pin 410 has a second stepped surface 411. A first elastic element 420 is disposed within the slide groove 101, and both ends of the first elastic element 420 are connected to the first stepped surface 104 and the second stepped surface 411, respectively. This arrangement ensures that the first elastic element 420 is stably and reliably connected between the locking pin 410 and the frame 100, thereby guaranteeing the reliability of the locking pin 410 in the locked position.

[0072] The connection methods between the first elastic element 420 and the first stepped surface 104 and the second stepped surface 411 include, but are not limited to, abutting and snapping.

[0073] Alternatively, please refer to Figure 8The frame 100 includes a first side 110, a second side 120, a third side 130, and a fourth side 140 connected sequentially. Both latches 410 are elastically disposed on the first side 110. Elastically disposing the latches 410 on the same side of the frame 100 makes it easier to simultaneously switch both latches 410 to the unlocked position. This improves the stability of the connection between the back panel 200 and the frame 100 while ensuring ease of removal of the back panel 200 from the frame 100.

[0074] Of course, in other embodiments, the two latches 410 can be respectively disposed on different sides of the frame 100. For example, one latch 410 is elastically disposed on the first side 110, and the other latch 410 is elastically disposed on the second side 120 or the third side 130.

[0075] Optionally, the first side 110 and the third side 130 have the same length, and the second side 120 and the fourth side 140 have the same length; the length of the first side 110 is greater than the length of the second side 120. Therefore, placing the two latches 410 on the first side 110 is equivalent to placing the two latches 410 on the long side of the frame 100; this arrangement improves the stability of the back panel 200 assembled with the frame 100 and ensures the ease of disassembly of the back panel 200.

[0076] Alternatively, please refer to Figure 8 One latch 410 is configured to move relative to the frame 100 to the unlocked position along a first direction a; the other latch 410 is configured to move relative to the frame 100 to the unlocked position along a second direction b; wherein the first direction a and the second direction b are opposite. With this configuration, when it is necessary to remove the back panel 200 from the frame 100, the user can simultaneously move both latches 410. For example, the user can use their finger and thumb to simultaneously move both latches 410, causing one latch 410 to move to the unlocked position along the first direction a and the other latch 410 to move to the unlocked position along the second direction b, thereby improving the ease of removing the back panel 200 from the frame 100.

[0077] Optionally, when both latches 410 move toward the unlock position, they are configured to move closer to each other. This makes it easier for the user to operate both latches 410 simultaneously, so that both latches 410 move toward the unlock position together.

[0078] Of course, in other embodiments, when both latches 410 move toward the unlock position, the two latches 410 are configured to move away from each other.

[0079] Alternatively, please refer to Figure 8 , Figure 11 and Figure 12 The back panel 200 has a first end and a second end that are relatively distributed. The first end of the back panel 200 is detachably inserted into a latch 410, and the second end of the back panel 200 is detachably inserted into a third side 130. When connecting the back panel 200 to the frame 100, the second end of the back panel 200 can be inserted into the third side 130 of the frame 100 first, and then the first end of the back panel 200 can be latched into the latch 410. This ensures easy operation in connecting the back panel 200 to the frame 100. When removing the back panel 200 from the frame 100, the latch 410 can be separated from the hook 220 of the back panel 200 first, and then the second end of the back panel 200 can be separated from the third side 130 of the frame 100. This ensures easy operation in removing the back panel 200 from the frame 100.

[0080] Optionally, the second end of the back panel 200 is inserted into the third side 130 along the first predetermined direction c, and the first end of the back panel 200 is engaged with the latch 410 along the second predetermined direction d; the first predetermined direction c and the second predetermined direction d are distributed at an angle. This arrangement ensures the stability of the back panel 200 assembled with the frame 100 in both the first predetermined direction c and the second predetermined direction d.

[0081] Alternatively, please refer to Figure 7 , Figure 8 and Figure 12 The back panel 200 also includes a plug-in protrusion 230 connected to the back panel body 210. One end of the plug-in protrusion 230 is connected to the back panel body 210, and the other end of the plug-in protrusion 230 protrudes relative to the back panel body 210 along the first set direction c. The third side 130 of the frame 100 is provided with a slot 131. The plug-in protrusion 230 and the slot 131 are plugged into each other along the first direction a.

[0082] Alternatively, please refer to Figure 8 The slot 131 has two slot walls 132 that are relatively distributed. The distance between the two slot walls 132 gradually decreases from the end near the slot opening of the slot 131 to the end away from the slot opening of the slot 131. That is, the two slot walls 132 are inclined relative to the first set direction c, so as to guide the insertion protrusion 230 into the slot 131 by using the slot walls 132.

[0083] Of course, in other embodiments, one of the two slot walls 132 of the slot 131 is inclined relative to the first predetermined direction c.

[0084] The connection methods between the plug protrusion 230 and the hook 220 and the back plate body 210 include, but are not limited to, integral molding and bonding.

[0085] Optionally, the first setting direction c is the width direction of the mobile terminal 300 assembled in the receiving cavity, that is, the direction from the first side 110 to the third side 130. The second setting direction d is the thickness direction of the mobile terminal 300 assembled in the receiving cavity. The first setting direction c is perpendicular to the second setting direction d, and both the first direction a and the second direction b are perpendicular to the first setting direction c and the second setting direction d.

[0086] To improve the ease of moving the drive pin 410 to the unlock position; please refer to... Figure 4 , Figure 10 , Figure 13 and Figure 14 The locking mechanism 400 also includes an actuating element 430, and the frame 100 is also provided with an elongated hole 102 communicating with the slide groove 101. The elongated hole 102 is located on the side of the frame 100 away from the receiving cavity. The actuating element 430 is slidably inserted into the elongated hole 102 and connected to the locking pin 410. Under the action of external force, the actuating element 430 can drive the locking pin 410 to overcome the elastic effect and slide towards the unlocked position.

[0087] Furthermore, the elongated hole 102 has a first end and a second end distributed along its length direction; when the actuating member 430 is located at the first end of the elongated hole 102, the locking pin 410 is in the locked position; when the actuating member 430 is located at the second end of the elongated hole 102, the locking pin 410 is in the unlocked position.

[0088] Alternatively, please refer to Figure 6 and Figure 10 The frame 100 is also provided with a relief groove 103 communicating with the slide groove 101, and the groove opening of the relief groove 103 is distributed facing the receiving cavity; one end of the actuating member 430 protrudes from the elongated hole 102, and the other end of the actuating member 430 protrudes from the relief groove 103. This arrangement allows the actuating member 430 to pass through the locking pin 410 (i.e., the actuating member 430 and the locking pin 410 are fixedly inserted and engaged), thereby improving the stability of the connection between the actuating member 430 and the locking pin 410; moreover, the relief groove 103 also prevents the groove wall of the slide groove 101 from interfering with the movement of the actuating member 430, ensuring the stability of the locking pin 410 being driven to the unlock position by the actuating member 430.

[0089] Optionally, the elongated hole 102 is an oblong hole. Of course, in other embodiments, the elongated hole 102 can also be a rectangular elongated hole.

[0090] Alternatively, please refer to Figure 13The mobile terminal protective case 010 also includes a rubber pad 510, which is disposed on the inner side wall of the frame 100, that is, on the side wall of the frame 100 facing the receiving cavity. By providing the rubber pad 510, when the mobile terminal 300 is embedded in the frame 100, the rubber pad 510 supports the mobile terminal 300, thereby improving the stability of the mobile terminal 300 within the frame 100 and reducing any shaking that may occur when the mobile terminal 300 is placed within the receiving cavity. Furthermore, the rubber pad 510 also provides better protection and cushioning for the mobile terminal 300 within the receiving cavity.

[0091] The adhesive pad 510 can be attached to the inner wall of the frame 100 by means of bonding, snapping, etc.

[0092] Optionally, the pad 510 includes a pad body 511 and a protrusion 512 connected to the pad body 511. The frame 100 is provided with a first through hole 105. The pad body 511 is connected to the side wall of the frame 100 facing the receiving cavity. The protrusion 512 is embedded in the first through hole 105 and protrudes from the first through hole 105. The protrusion 512 is opposite to the button (e.g., volume button) on the mobile terminal 300 so that pressing the protrusion 512 can activate the button of the mobile terminal 300.

[0093] The aforementioned protrusion 512 protruding from the first through hole 105 can mean that the protrusion 512 protrudes from the first through hole 105. Of course, in other embodiments, the protrusion 512 protruding from the first through hole 105 can also mean that the protrusion 512 is inserted into the first through hole 105 and is flush with the first through hole 105; or, the protrusion 512 is recessed relative to the first through hole 105 but is not blocked by the first through hole 105.

[0094] Alternatively, please refer to Figure 15 The mobile terminal protective case 010 also includes a second elastic member 520, which is disposed on the back plate 200 and located within the receiving cavity. When the mobile terminal 300 is disposed within the receiving cavity and the back plate 200 is assembled onto the frame 100, the mobile terminal 300 abuts against the second elastic member 520, causing the second elastic member 520 to deform under pressure. When both latches 410 move to the unlocked position to unlock the first end of the back plate 200, the second elastic member 520 can reset under its own elasticity, and the back plate 200 is slightly bounced up under the action of the second elastic member 520, so that the first end of the back plate 200 is separated from the frame 100. In this way, it is easier to further separate the second end of the back plate 200 from the frame 100, so that the back plate 200 can be more easily removed from the frame 100.

[0095] The second elastic element 520 includes, but is not limited to, a silicone pad 510 and a spring. The second elastic element 520 is connected to the back plate 200 by means including, but not limited to, adhesive bonding and snap-fit ​​bonding.

[0096] Alternatively, please refer to Figure 14 The mobile terminal protective case 010 also includes a lanyard pin 530, which is connected to the frame 100. The lanyard pin 530 makes it convenient for users to attach a lanyard to the mobile terminal protective case 010, thereby improving ease of use.

[0097] Optionally, the frame 100 is provided with a second through hole 106, and the lanyard pin 530 is located inside the second through hole 106. This arrangement can improve the problem of the lanyard pin 530 protruding outward and enhance the user experience.

[0098] The connection between the hanging cord pin 530 and the frame 100 includes, but is not limited to, interference fit and threaded connection.

[0099] The number of lanyard pins 530 can be selected as needed; in this embodiment, the frame 100 is connected with three lanyard pins 530, two of which are distributed at both ends of the length direction of the first side 110 of the frame 100, and the other lanyard pin 530 is distributed at one end of the length direction of the third side 130 of the frame 100.

[0100] Of course, in other embodiments, the number of hanging rope pins 530 can be one, two, four, etc., and no specific limitation is made here.

[0101] Alternatively, please refer to Figure 13 The mobile terminal protective case 010 also includes a touch module 540, which is disposed on the frame 100. The touch module 540 may refer to a capacitive module. The touch module 540 ensures the normal use of the touch buttons located on the side of the mobile terminal 300 placed inside the housing cavity.

[0102] The touch module 540 is mounted on the frame 100 by means including but not limited to snap-fit ​​and adhesive.

[0103] Optionally, the touch module 540 may be disposed on any one of the first side 110, the second side 120, the third side 130 and the fourth side 140, without any specific limitation.

[0104] Alternatively, please refer to Figure 16 The frame 100 is provided with a positioning groove 550 for mounting extension parts. This design facilitates the expansion of the mobile terminal 300 placed in the receiving cavity with more different functions.

[0105] Optionally, the positioning slot 550 includes two slots facing different directions, which makes it easier to expand and connect various expansion parts through the positioning slot 550.

[0106] Optionally, one of the slots of the positioning groove 550 is distributed facing the back plate body 210, and the other slot of the positioning groove 550 is distributed away from the receiving cavity.

[0107] The number of positioning slots 550 provided on the frame 100 can be selected as needed; in this embodiment, the frame 100 is provided with four positioning slots 550, wherein the first side 110, the second side 120, the third side 130 and the fourth side 140 are each provided with one positioning slot 550.

[0108] Of course, in other embodiments, the number of positioning slots 550 can be one, two, three, six, etc., and no specific limitation is made here.

[0109] Optionally, the frame 100 is also provided with a MIC hole and a USB plug hole (e.g., a Type-C plug hole); wherein either the MIC hole or the USB plug hole is provided on any one of the four sides 110, 120, 130 and 140, without being specifically limited here.

[0110] The assembly process of the mobile terminal protective case 010 in this embodiment includes:

[0111] Embed the mobile terminal 300 into the frame 100 from the back; insert the second end of the back plate 200 into the third side 130 of the frame 100, and then gradually attach the back plate body 210 to the back of the mobile terminal 300; and snap the first end of the back plate 200 into the latch 410 of the first side 110 of the frame 100.

[0112] The disassembly process of the mobile terminal protective case 010 in this embodiment includes:

[0113] Move the latch 410 to the unlock position so that the first end of the back panel 200 springs up under the action of the second elastic member 520; separate the second end of the back panel 200 from the frame 100; push the mobile terminal 300 out of the frame 100 from the front of the frame 100.

[0114] In summary, the mobile terminal protective case 010 of this utility model can improve the stability of the back panel 200 assembled on the frame 100, effectively improve the problem that the back panel 200 is prone to accidentally falling off the frame 100, and improve the problem that the mobile terminal 300 is accidentally falling off the protective case.

[0115] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A protective case for a mobile terminal, characterized in that, include: Border (100); A back panel (200), detachably disposed on the frame (100), forms a receiving cavity for accommodating the mobile terminal (300); and, A latching mechanism (400) includes at least two latches (410), which are resiliently disposed on at least one of the frame (100) and the back panel (200). Each latch (410) has a locked position and an unlocked position. When the latch (410) is not subjected to external force, the latch (410) can move to the locking position under elastic action and can engage with the other of the frame (100) and the back plate (200); When the latch (410) is subjected to an external force to overcome the elastic effect and moves to the unlock position, the latch (410) separates from the other of the frame (100) and the back plate (200).

2. The mobile terminal protective case according to claim 1, characterized in that, The locking mechanism (400) further includes a first elastic element (420), and the locking pin (410) is elastically disposed on the other of the frame (100) and the back plate (200) by means of the first elastic element (420).

3. The mobile terminal protective case according to claim 1, characterized in that, One of the frame (100) and the back plate (200) is provided with a groove (101), and the latch (410) is slidably disposed in the groove (101).

4. The mobile terminal protective case according to claim 3, characterized in that, The frame (100) is provided with the slide groove (101), and the opening of the slide groove (101) is distributed facing the back plate (200). The latch (410) is configured to be fitted into the slide groove (101) from the opening of the slide groove (101).

5. The mobile terminal protective case according to claim 4, characterized in that, The back plate (200) includes a back plate body (210) and a hook (220) connected to the back plate body (210), the hook (220) being detachably inserted into the slide groove (101) from the slot of the slide groove (101).

6. The mobile terminal protective case according to claim 3, characterized in that, The latching mechanism (400) further includes a toggle member (430), one of the frame (100) and the back plate (200) is provided with an elongated hole (102) communicating with the slide groove (101); the toggle member (430) is slidably inserted into the elongated hole (102) and connected to the latch (410); The actuating element (430) can drive the locking pin (410) to overcome the elastic effect and slide towards the unlocking position under the action of external force.

7. The mobile terminal protective case according to claim 6, characterized in that, One of the frame (100) and the back plate (200) is further provided with a clearance groove (103) communicating with the slide (101), the opening of the clearance groove (103) being distributed towards the receiving cavity; one end of the actuating member (430) protrudes from the elongated hole (102), and the other end of the actuating member (430) protrudes from the clearance groove (103).

8. The mobile terminal protective case according to any one of claims 1-7, characterized in that, The frame (100) includes a first side (110), a second side (120), a third side (130) and a fourth side (140) connected in sequence, and at least two of the latches (410) are elastically disposed on the first side (110).

9. The mobile terminal protective case according to claim 8, characterized in that, One of the latches (410) is configured to move to the unlock position relative to the frame (100) along a first direction (a); the other latch (410) is configured to move to the unlock position relative to the frame (100) along a second direction (b); wherein the first direction (a) is opposite to the second direction (b).

10. The mobile terminal protective case according to claim 8, characterized in that, The back plate (200) has a first end and a second end that are relatively distributed. The second end of the back plate (200) is inserted into the third side (130) along a first predetermined direction (c), and the first end of the back plate (200) is engaged with the latch (410) along a second predetermined direction (d). The first predetermined direction (c) and the second predetermined direction (d) are distributed at an angle. And / or, The first side (110) and the third side (130) have the same length, and the second side (120) and the fourth side (140) have the same length; the length of the first side (110) is greater than the length of the second side (120).