Mobile phone protection shell

Abstract

The utility model discloses a mobile phone protective shell, which relates to the technical field of mobile phone accessories and comprises a protective shell body, a mounting groove is formed in the protective shell body, a mobile phone with touch keys is limited in the mounting groove and conductive keys, an opening is arranged on the inner wall of the mounting groove, and the conductive keys are arranged on the mounting groove. The conductive key is elastically connected in the opening and extends to the outer side of the mounting groove and the outer side of the protective shell body, and the conductive key abuts against the touch key. Therefore, a user can trigger the touch key on the mobile phone by touching the conductive key with a finger, and the conductive key is connected with the protective shell body, so that the touch key can be protected, and the beneficial effects of ensuring the normal use of the touch key and reducing the damage risk of the touch key are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone accessories, in particular to a mobile phone protective shell. Background Art

[0002] Capacitive touch buttons have become widely adopted in the home appliance and consumer electronics markets, particularly in smartphones, due to their unique advantages. These advantages include: no mechanical components, resulting in a longer lifespan; contactless sensing, making operation more convenient; no need for panel holes, resulting in more aesthetically pleasing and streamlined product designs; and excellent waterproof performance, enhancing product durability. Their operating principle is to detect touch by measuring the change in capacitance between the panel and the environment. When a finger touches a surface, capacitance forms between the finger and the copper surface on the PCB, forming a capacitor through dielectric isolation. The touch sensor circuit measures the total capacitance along the touch pin path. If the change in total capacitance exceeds a preset threshold, the system identifies a finger touch.

[0003] However, existing phone case designs have certain flaws. Some cases cover the phone's touch buttons, rendering them inoperable. Others leave holes to allow users to touch the buttons directly. While the latter approach solves the problem of button access, it sacrifices protection for the touch buttons and increases the risk of damage. Utility Model Content

[0004] The main purpose of the utility model is to provide a mobile phone protective case, which aims to ensure the normal use of touch buttons while strengthening the protection of the touch buttons and reducing the risk of damage to the touch buttons.

[0005] To achieve the above-mentioned purpose, the mobile phone protective case proposed in the present invention is applied to a mobile phone with touch buttons. The mobile phone protective case includes a protective case body, and a mounting groove for accommodating and limiting the mobile phone with touch buttons is formed in the protective case body, and an opening is provided on the inner wall of the mounting groove; a conductive button, and the conductive button is elastically mounted on the opening.

[0006] In one embodiment, the protective shell body includes an outer shell and an elastic inner frame, the mounting groove is formed in the outer shell, the outer shell is provided with the opening, the elastic inner frame has a frame portion and a filling portion connected to each other, the filling portion is provided with a button hole, the frame portion extends along the side wall of the mounting groove, the inner wall of the frame portion is connected to a mobile phone with a touch button, the filling portion fills the opening, and the conductive button is connected to the side wall of the button hole.

[0007] In one embodiment, the side wall of the button hole is provided with an elastic boss, the side wall of the conductive button is provided with a groove adapted to the elastic boss, and the elastic boss is snap-connected to the groove.

[0008] In one embodiment, a first paving groove is provided on the side wall of the conductive key on the side of the elastic boss facing away from the touch button, and the first paving groove is used to provide an escape space for the elastic boss.

[0009] In one embodiment, a second clearance groove is provided on the periphery of the hole opening on one side of the button hole close to the installation groove, and the second clearance groove gradually expands in the direction close to the installation groove, and the second clearance groove is used to provide an avoidance space for the touch button.

[0010] In one embodiment, the opening gradually shrinks along a direction from the outer wall of the outer shell to the inner wall of the outer shell, and the filling portion gradually shrinks along a direction from the outer wall of the outer shell to the inner wall of the outer shell.

[0011] In one embodiment, a limiting groove is formed on the side wall of the installation groove, and the limiting groove extends along the side wall of the installation groove, and the frame portion is limited in the limiting groove.

[0012] In one embodiment, the elastic inner frame is a silicone frame-shaped structure.

[0013] In one embodiment, a contraction portion is formed at one end of the conductive key close to the touch key, and the contraction portion gradually contracts in a direction close to the touch key.

[0014] In one embodiment, the protective shell body includes an outer shell and a connecting block, the mounting groove is formed in the outer shell, the outer shell is provided with the opening, the connecting block is provided in the opening and connected to the side wall of the opening, the connecting block is provided with a button hole, and the conductive button is elastically installed in the button hole.

[0015] The mobile phone protective case of the utility model includes a protective case body, a mounting slot formed in the protective case body, a mobile phone with touch buttons restrained in the mounting slot and a conductive button, an opening formed in the inner wall of the mounting slot, a conductive button elastically connected within the opening and extending to the outside of the mounting slot and the protective case body, the conductive button abutting the touch button. In this way, a user can activate the touch button on the mobile phone by touching the conductive button with a finger, and the conductive button is connected to the protective case body, providing protection for the touch button, achieving the beneficial effect of ensuring normal use of the touch button while reducing the risk of damage to the touch button. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0017] Figure 1 This is a structural diagram of an embodiment of a mobile phone protective case provided by the present invention;

[0018] Figure 2 for Figure 1 The structural explosion diagram of the mobile phone protective case;

[0019] Figure 3 This is a structural schematic diagram of another embodiment of the mobile phone protective case provided by the present utility model;

[0020] Figure 4 for Figure 1 A schematic structural diagram of the outer shell of the mobile phone protective case;

[0021] Figure 5 for Figure 1 A schematic structural diagram of the elastic inner frame of the mobile phone protective case;

[0022] Figure 6 for Figure 1 A cross-sectional view of the mobile phone protective case along line A-A';

[0023] Figure 7 for Figure 6 A partial enlarged view of the structure at point B in the mobile phone protective case;

[0024] Figure 8 for Figure 7 Schematic diagram of the structure of the conductive button of the mobile phone protective case.

[0025] Description of Figure Numbers:

[0026] 1000, mobile phone protective case;

[0027] 1. Protective case body; 11. Outer shell; 11a. Mounting slot; 11b. Opening; 11c. Limiting slot; 12. Elastic inner frame; 121. Frame portion; 122. Filling portion; 122a. Keyhole; 122b. Second clearance slot; 123. Elastic boss;

[0028] 2. Conductive button; 2a. Groove; 2b. First relief groove; 21. Contraction portion;

[0029] 2000, mobile phone; 2001, touch button.

[0030] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] The present invention provides a mobile phone protective shell 1000 , which is applied to a mobile phone 2000 with a touch button 2001 .

[0035] See also Figure 1 and Figure 2In one embodiment of the present invention, the mobile phone protective case 1000 includes a protective case body 1, wherein the protective case body 1 has a mounting groove 11a formed therein for accommodating and retaining the mobile phone 2000 with a touch button 2001. The mounting groove 11a has an inner wall provided with an opening 11b. A conductive button 2 is elastically mounted in the opening 11b, for example, the conductive button 2 is elastically connected to the inner wall of the opening 11b. In an initial state, i.e., when the conductive button 2 exposed on the outer portion of the protective case is not touched or pressed by a finger, the conductive button 2 is configured to be in contact with or not in contact with the touch button 2001 of the mobile phone 2000. In the non-contact design, when an operation is required, a slightly greater force is applied than in the contact design to first bring the conductive button 2 into contact with the touch button 2001, and then a light press, a hard press, or a sliding operation is performed. Elastic mounting can be achieved by using a spring or elastic sheet (wire) with appropriate elasticity, or by using a slightly elastically deformable material such as silicone or rubber as a bracket. Alternatively, the elastic deformation of the conductive button 2 can be utilized, whereby the edge of the conductive button 2 is elastically fixed to the edge of the opening 11b. When the conductive button 2001 is operated, the conductive button 2001 elastically deforms toward the inside of the opening 11b, thereby approaching the touch button 2001. The mobile phone protective case 1000 can be any structure mounted on the outside of the mobile phone, such as a mobile phone case, a mobile phone cage, etc.

[0036] In this embodiment, to ensure charge conduction between the inner and outer end surfaces of the conductive key 2, the conductive key 2 is made of a metal material with excellent conductive properties or a specially made conductive plastic. Furthermore, to achieve charge transfer between the conductive key 2 and the touch key 2001, the end surface of the conductive key 2 proximal to the touch key 2001 must be able to abut against the touch key 2001. Therefore, in this embodiment, the conductive key 2 extends into the mounting groove 11a, with the end of the conductive key 2 proximal to the touch key 2001 flush with or protruding from the side wall of the mounting groove 11a, thereby abutting against the touch key 2001. Similarly, to facilitate user pressing of the conductive key 2, the end of the conductive key 2 facing away from the touch key 2001 extends toward the outside of the protective case body 1 until it is flush with or protruding from the outer wall of the protective case body 1.

[0037] A mounting groove 11a that matches the outer contour of the mobile phone is formed on the protective case body 1. When the user assembles the mobile phone protective case 1000, the user puts the mobile phone into the mounting groove 11a. An opening 11b is provided on the side wall of the mounting groove 11a at a position corresponding to the touch button 2001 on the mobile phone. The conductive button 2 is provided in the opening 11b. An elastic material is filled between the side wall of the opening 11b and the conductive button 2 to elastically connect the conductive button 2 to the opening 11b, such as elastic materials such as silicone or rubber. In this way, the conductive button 2 can move and reset in the opening 11b. For example, when the touch button 2001 on the mobile phone is recessed, in order to make the conductive button 2 contact with the touch button 2001, the conductive button 2 is pressed into the mounting groove 11a, and the conductive button 2 is released. After the pressing force is released, the conductive button 2 can rebound to the position before being pressed. For another example, when the touch button 2001 on the mobile phone is recessed, the conductive button 2 is pressed into the mounting groove 11a. When the conductive button 2 is released, the conductive button 2 can rebound to the position before being pressed. In the convex arrangement, after the mobile phone is installed in the installation groove 11a, the touch button 2001 pushes the conductive button 2 outward, and the elastic material filled in the opening 11b constrains the conductive button 2 and pulls the conductive button 2 inward so that the conductive button 2 is in contact with the touch button 2001. That is, in the scheme where the conductive button 2 is set to always maintain contact with the touch button 2001 of the mobile phone 2000, that is, when not operated, the end of the conductive button 2 located inside the mobile phone case maintains contact with the touch button 2001 of the mobile phone. Due to the elastic installation, the elastic force causes the conductive button 2 to tend to move toward the touch button 2001, thereby making their contact more reliable. In this way, when operating, a person only needs to touch the outer surface of the conductive button 2001 from the outside of the conductive button 2001 to sensitively transmit the touch and operation signals to the touch button 2001 inside the mobile phone case, thereby achieving the purpose of controlling the mobile phone.

[0038] Mobile phone protective case 1000 includes a protective case body 1 with a mounting slot 11a formed therein. Mobile phone 2000 with a touch button 2001 is positioned between mounting slot 11a and a conductive button 2. An opening 11b is formed on the inner wall of mounting slot 11a. Conductive button 2 is elastically connected within opening 11b and extends to the outside of mounting slot 11a and protective case body 1, where it abuts against touch button 2001. This allows a user to trigger touch button 2001 on the mobile phone by touching conductive button 2 with their finger. Furthermore, the conductive button 2 is connected to the protective case body 1, providing protection for touch button 2001. This ensures normal use of touch button 2001 while reducing the risk of damage.

[0039] Further, see Figure 4 and Figure 5In one embodiment of the present utility model, the protective case body 1 includes an outer shell 11 and an elastic inner frame 12. A mounting groove 11a is formed in the outer shell 11, and an opening 11b is provided on the outer shell 11. The elastic inner frame 12 has a frame portion 121 and a filling portion 122 connected to each other. The filling portion 122 is provided with a button hole 122a. The frame portion 121 extends along the side wall of the mounting groove 11a. The inner wall of the frame portion 121 is connected to the mobile phone 2000 with the touch button 2001. The filling portion 122 fills the opening 11b, and the conductive button 2 is connected to the side wall of the button hole 122a.

[0040] In this embodiment, the shell is injection molded with PC or other materials, and has the characteristics of scratch resistance, drop resistance and lightness. The elastic inner frame 12 is made of highly elastic materials such as silicone or rubber. The frame body 121 extends along the side wall of the mounting groove 11a and is close to the side wall of the mounting groove 11a. Since the outer shell 11 is provided with a volume button hole 122a and a charging jack, etc., the corresponding position of the elastic inner frame 12 is also opened. The elastic inner frame 12 is used to contact the side of the mobile phone. When the mobile phone falls together with the mobile phone protective case 1000, it can further alleviate the impact force transmitted to the mobile phone by the outer shell 11.

[0041] The frame portion 121 and the filling portion 122 are integrally formed, the filling portion 122 fills the opening 11b, the filling portion 122 opens or reserves a button hole 122a, the button hole 122a connects the mounting groove 11a and the outer space of the protective shell body 1, the conductive button 2 is connected to the side wall of the button hole 122a, and the outer surface of the filling portion 122 and the outer surface of the conductive button 2 are adapted to the outer side profile of the shell, so that the outer surface of the mobile phone protective shell 1000 is smooth and complete, and the touch feel and appearance are improved.

[0042] Further, see Figure 6 and Figure 7 In one embodiment of the present invention, the side wall of the button hole 122a is provided with an elastic boss 123, and the side wall of the conductive button 2 is provided with a groove 2a adapted to the elastic boss 123, and the elastic boss 123 is snapped into the groove 2a.

[0043] In this embodiment, the elastic boss 123 and the filling portion 122 are an integrally formed structure. Similarly, the elastic boss 123 also uses the same elastic material such as silicone or rubber as the filling portion 122. The elastic boss 123 is a wall body that extends circumferentially along the key hole 122a in a section or multiple ends or a circle. The side wall of the conductive key 2 is opened or reserved with a groove 2a that is adapted to the elastic boss 123, which is used to be clamped and fixed with the top of the elastic boss 123. Therefore, when the conductive key 2 is pressed into the mounting groove 11a, or the touch key 2001 pushes the conductive key 2 toward the outside of the protective shell body 1, the elastic boss 123 will be deformed and still maintain the connection between the conductive key 2 and the inner wall of the key hole 122a. When the force pressing or pushing up the conductive key 2 is released, the conductive key 2 can return to the position before being pressed or pushed up.

[0044] Further, see Figures 6 to 8 In one embodiment of the present invention, a first paving groove 2b is provided on the side wall of the conductive key 2 on the side of the elastic boss 123 facing away from the touch button 2001, and the first paving groove 2b is used to provide an escape space for the elastic boss 123.

[0045] In this embodiment, when the conductive key 2 is pressed into the mounting groove 11a, the root of the elastic boss 123 hardly moves, the middle part of the elastic boss 123 is deformed, and the top of the elastic boss 123 follows the conductive key 2 toward the mounting groove 11a. Therefore, a first avoidance groove 2b is provided on the side wall of the conductive key 2 on the side of the elastic boss 123 facing away from the touch key 2001. The first avoidance groove shell accommodates the root of the elastic boss 123. In this way, the conductive key 2 can be smoothly pressed into the mounting groove 11a, avoiding interference between the elastic boss 123 and the conductive key 2, which would hinder the movement of the conductive key 2.

[0046] Further, see Figure 3 、 Figure 6 and Figure 7 In one embodiment of the present invention, a second clearance groove 122b is provided on the periphery of the hole of the button hole 122a close to the installation groove 11a. The second clearance groove 122b gradually expands in the direction close to the installation groove 11a. The second clearance groove 122b is used to provide an avoidance space for the touch button 2001.

[0047] In this embodiment, the second clearance groove 122b is arranged on the inner side wall of the elastic inner frame 12, specifically on the periphery of the hole of the button hole 122a on the side close to the mounting groove 11a. The second clearance groove 122b gradually expands in the direction close to the mounting groove 11a. When the touch button 2001 on the mobile phone adopts a convex design, it can provide an escape space for the touch button 2001 to extend into, preventing the touch button 2001 from abutting against the inner side wall of the elastic inner frame 12, causing the mobile phone to be unable to be installed in the mounting groove 11a or causing the protective case body 1 to bulge, affecting the use of the mobile phone protective case 1000.

[0048] Further, see Figure 2 、 Figure 4 and Figure 5 In one embodiment of the present invention, the opening 11b gradually shrinks from the outer wall of the outer shell 11 to the inner wall of the outer shell 11, and the filling portion 122 gradually shrinks from the outer wall of the outer shell 11 to the inner wall of the outer shell 11.

[0049] In this embodiment, the outer shell 11 and the elastic inner frame 12 are designed to be split. The side wall of the opening 11b is provided with a notch to facilitate the assembly of the elastic inner frame 12 and the outer shell 11. The opening 11b is shrunk to a minimum at the notch. Correspondingly, the filling portion 122 is also shrunk to a minimum at the notch. In this way, the filling portion 122 is limited to the opening 11b. The filling portion 122 and the opening 11b have a large outer side and a small inner side. When the conductive button is pressed inward or the position of the mobile phone protective case 1000 is flipped or the mobile phone protective case 1000 is shaken, the elastic inner frame 12 is not easy to separate from the outer shell 11. For example, during transportation, the elastic inner frame 12 is not easy to be thrown out of the outer shell 11. It also expands the volume of the elastic material to provide a better rebound effect.

[0050] Furthermore, in order to prevent the elastic inner frame 12 from being easily separated from the outer shell 11, please refer to Figure 2 and Figure 4 In one embodiment of the present invention, the sidewalls of the mounting groove 11a form a limiting groove 11c, which extends along the sidewalls of the mounting groove 11a. The frame portion 121 is limited within the limiting groove 11c. Specifically, a ring of walls is provided at the notch of the mounting groove 11a. This wall, together with the sidewalls and bottom wall of the mounting groove 11a, forms the limiting groove 11c. This wall restrains the elastic inner frame 12 within the mounting frame. Accordingly, the elastic inner frame 12 is a silicone frame-shaped structure and extends along the limiting groove 11c.

[0051] Further, see Figure 7 and Figure 8In one embodiment of the present invention, a contraction portion 21 is formed at one end of the conductive key 2 close to the touch key 2001 , and the contraction portion 21 gradually contracts in a direction close to the touch key 2001 .

[0052] In this embodiment, the area of ​​the end surface of the conductive key 2 near the touch key 2001 is smaller than the cross-sectional area of ​​the middle portion of the conductive key 2. A bevel forms a smooth transition between the end surface of the conductive key 2 near the touch key 2001 and the middle portion of the conductive key 2, thereby forming a constricted portion 21. The area of ​​the end surface where the constricted portion 21 contacts the touch key 2001 can be the smallest of the existing recessed touch keys 2001. This is to accommodate touch keys 2001 of varying sizes. For example, when recessed touch keys 2001 are used in mobile phones, if the end of the conductive key 2 near the touch key 2001 is too large, it will abut against the phone case and be unable to extend into contact with the touch key 2001, preventing electrical conduction. With the constricted portion 21, the end surface can freely extend into the recessed key slot of the phone, achieving contact between the conductive key 2 and the touch key 2001.

[0053] In order to enhance the grip of the mobile phone protective case 1000 and appropriately reduce the thickness of the mobile phone case, in one embodiment of the present invention, the protective case body 1 includes an outer shell 11 and a connecting block. In one embodiment, the connecting block can be an elastic connecting block or an insulating connecting block, and its material can be silicone, rubber, wood, plastic fiber, etc. The outer shell 11 forms a mounting groove 11a, and the outer shell 11 is provided with an opening 11b. The elastic connecting block is disposed in the opening 11b and is connected to the side wall of the opening 11b. The elastic connecting block is provided with a button hole 122a, and the conductive button 2 is elastically mounted in the button hole 122a, for example, the conductive button 2 is connected to the side wall of the button hole 122a. In this embodiment, the elastic connecting block is disposed in the opening 11b, and the elastic connecting block is configured to be bonded to the side wall of the opening 11b or a clamping block is provided between the side wall of the elastic connecting block and the side wall of the opening 11b, so as to achieve the fixing of the elastic connecting block to the side wall of the opening 11b. A button hole 122a is provided on the elastic connecting block, and the button hole 122a connects the mounting groove 11a and the outer space of the protective shell body 1. The conductive button 2 is bonded to the side wall of the button hole 122a or, referring to the above embodiment, an elastic boss 123 is provided on the inner wall of the button hole 122a, and a groove 2a adapted to the elastic boss 123 is provided on the side wall of the conductive button 2 to connect the conductive button 2 to the button hole 122a. In this way, there is no need to provide an elastic inner frame 12, which reduces the thickness of the mobile phone case, enhances the holding feel of the mobile phone protective case 1000, and reduces the production cost.

[0054] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A mobile phone protective case, applied to a mobile phone (2000) with a touch button (2001), characterized in that: The mobile phone protective case comprises: A protective shell body (1), wherein a mounting groove (11a) for accommodating and limiting the mobile phone (2000) with touch buttons is formed in the protective shell body (1), and an opening (11b) is provided on the inner wall of the mounting groove (11a); A conductive button (2), wherein the conductive button (2) is elastically mounted on the opening (11b).

2. The mobile phone protective case according to claim 1, wherein: The protective shell body (1) comprises an outer shell (11) and an elastic inner frame (12); the outer shell (11) is formed with the mounting groove (11a); the outer shell (11) is provided with the opening (11b); the elastic inner frame (12) comprises a frame portion (121) and a filling portion (122) connected to each other; the filling portion (122) is provided with a button hole (122a); The frame portion (121) extends along the side wall of the installation groove (11a), the inner wall of the frame portion (121) is connected to the mobile phone (2000) with a touch button, the filling portion (122) fills the opening (11b), and the conductive button (2) is connected to the side wall of the button hole (122a).

3. The mobile phone protective case according to claim 2, wherein: The side wall of the button hole (122a) is provided with an elastic boss (123), the side wall of the conductive button (2) is provided with a groove (2a) adapted to the elastic boss (123), and the elastic boss (123) is snap-connected to the groove (2a).

4. The mobile phone protective case according to claim 3, wherein: A first paving groove (2b) is provided on the side wall of the conductive key (2) on the side of the elastic boss (123) facing away from the touch key (2001), and the first paving groove (2b) is used to provide an escape space for the elastic boss (123).

5. The mobile phone protective case according to claim 2, wherein: A second clearance groove (122b) is provided on the periphery of the opening of the button hole (122a) on one side close to the installation groove (11a), and the second clearance groove (122b) gradually expands in a direction close to the installation groove (11a). The second clearance groove (122b) is used to provide an escape space for the touch button (2001).

6. The mobile phone protective case according to claim 2, wherein: The opening (11b) gradually shrinks along the direction from the outer wall of the outer shell (11) to the inner wall of the outer shell (11), and the filling portion (122) gradually shrinks along the direction from the outer wall of the outer shell (11) to the inner wall of the outer shell (11).

7. The mobile phone protective case according to claim 2, wherein: A limiting groove (11c) is formed on the side wall of the installation groove (11a), the limiting groove (11c) extends along the side wall of the installation groove (11a), and the frame portion (121) is limited in the limiting groove (11c).

8. The mobile phone protective case according to claim 2, wherein: The elastic inner frame (12) is a silica gel frame-shaped structure.

9. The mobile phone protective case according to any one of claims 1 to 8, characterized in that: A contraction portion (21) is formed at one end of the conductive key (2) close to the touch key (2001), and the contraction portion (21) gradually contracts in a direction close to the touch key (2001).

10. The mobile phone protective case according to claim 1, wherein: The protective shell body (1) comprises an outer shell (11) and a connecting block, the outer shell (11) is formed with the mounting groove (11a), the outer shell (11) is provided with the opening (11b), the connecting block is arranged in the opening (11b), the connecting block is provided with a button hole (122a), and the conductive button (2) is elastically mounted in the button hole (122a).

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