Protective shell

Abstract

The utility model relates to a protective shell, which comprises a back plate and a frame connected to the periphery of the back plate, and the back plate and the frame enclose to form an accommodating groove for accommodating electronic equipment. At least one key is arranged on the outer wall of the frame, and a sealed first air bag cavity is formed in the key; the key is integrally formed on the outer wall of the frame, and the sealed first air bag cavity is formed in the key, so that the key still has good elasticity and rebound resilience while the overall structure of the key is kept simple; according to the protective shell, additional key parts and assembling procedures are omitted, so that the production cost and the labor cost are reduced; meanwhile, due to the buffering effect of the first air bag cavity, the key position is additionally protected during falling or impact, and the protection capacity of the protection shell is improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic device accessories technology, and in particular to a protective shell. Background Technology

[0002] With the widespread use of smartphones, tablets, and other mobile electronic devices, users commonly use protective cases to safeguard these devices during daily use. Existing phone cases typically improve drop resistance by incorporating cushioning structures (such as air bladders or reinforcing ribs) inside the frame, reducing the risk of damage from drops. However, for the buttons, current technology often uses separate button components, meaning button holes are pre-drilled in the case frame, and separately manufactured button parts are then assembled onto them. While this method allows for button operation, it suffers from a large number of parts, complex assembly processes, and high production costs. Furthermore, buttons can fall out during use; if the user doesn't notice, the button is lost, rendering the user unable to control the corresponding buttons on the phone, necessitating the replacement of the protective case. Utility Model Content

[0003] In view of this, the present invention provides a protective shell to solve the problems of protective shells in the prior art.

[0004] To achieve one, some, or all of the above objectives, or other objectives, this utility model proposes:

[0005] Protective case, including:

[0006] A back panel, and a frame connected to the perimeter of the back panel, wherein the back panel and the frame form a receiving groove for accommodating an electronic device;

[0007] The outer wall of the frame is provided with at least one button, and the button is provided with a sealed first airbag cavity.

[0008] In some embodiments, the buttons include a plurality of buttons, each of which has a first airbag cavity, and the plurality of first airbag cavities are independent of each other and are each a sealed cavity.

[0009] In some embodiments, the frame includes an outer frame and a first seal, the button protrudes from the outer wall of the outer frame, and a first airbag groove is recessed on one side of the inner wall of the outer frame. The first seal fits against the inner wall of the outer frame and covers the opening of the first airbag groove to form the first airbag cavity.

[0010] In some embodiments, the outer wall of the outer frame is recessed with an outer groove, the button protrudes from the bottom of the outer groove, and the thickness of the outer frame at the outer groove is less than the thickness of the outer frame at other locations.

[0011] In some embodiments, the button protrudes beyond the outer groove, or the height of the button protruding from the bottom of the outer groove is greater than or equal to the depth of the outer groove.

[0012] In some embodiments, the buttons include a plurality of buttons, which are spaced apart and arranged in the same outer groove along the length direction of the outer groove; or, the buttons include a plurality of buttons, the outer grooves include a plurality of outer grooves, and at least one button is protruding from each outer groove.

[0013] In some embodiments, the outer frame includes a top frame, a bottom frame, and two first side frames connecting the top frame and the bottom frame;

[0014] The buttons are provided in multiple ways, and the multiple buttons are located on one of the first side frames, or the multiple buttons are respectively located on two of the first side frames. The first sealing member includes two, and the two first sealing members are respectively attached to the inner walls of the two first side frames.

[0015] In some embodiments, the frame further includes a second sealing member, and the inner wall of the top frame is recessed with a second airbag groove. The second sealing member fits against the inner wall of the top frame and covers the opening of the second airbag groove to form a second airbag cavity. The second airbag cavity is spaced apart from the button.

[0016] In some embodiments, the second airbag cavity extends along the length of the top frame and extends to the junction of the top frame and the two first side frames.

[0017] In some embodiments, the frame further includes a third sealing member, and the inner wall of the bottom frame is recessed with a third airbag groove. The third sealing member fits against the inner wall of the bottom frame and covers the opening of the third airbag groove to form a third airbag cavity. The third airbag cavity is spaced apart from the button.

[0018] In some embodiments, the third airbag cavity extends along the length of the bottom frame and extends to the junction of the bottom frame and the two first side frames.

[0019] In some embodiments, the frame further includes a second seal, wherein one of the first seals, the second seal, the other of the first seals, and the third seal are sequentially connected and form an annular structure, the annular structure being integrally formed by injection molding.

[0020] In some embodiments, the outer frame includes a transparent portion, and the surface of the first seal facing the outer frame is provided with decorative patterns or designs, which are visible through the transparent portion of the outer frame.

[0021] Implementing the embodiments of this utility model will have the following beneficial effects:

[0022] By adopting the aforementioned protective case, the button is integrally molded on the outer wall of the frame, and a sealed first airbag cavity is set inside the button. This allows the button to maintain a simple overall structure while still possessing good elasticity and rebound performance. Compared with the existing technology that relies on independent button components, this protective case eliminates additional button parts and assembly processes, thereby reducing production and labor costs. At the same time, in addition to good elasticity and rebound performance, the first airbag cavity also has a cushioning effect, providing additional protection for the button position when dropped or impacted, thus improving the protective case's ability to protect the mobile phone. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 These are schematic diagrams of the protective shell in some embodiments;

[0025] Figure 2 Exploded assembly diagrams of the protective casing in some embodiments;

[0026] Figure 3 This is an overall cross-sectional view of the protective shell in some embodiments;

[0027] Figure 4 This is a partial cross-sectional view of the protective shell in some embodiments;

[0028] Figure 5 Schematic diagram of the outer frame structure in some embodiments Figure 1 ;

[0029] Figure 6 Schematic diagram of the outer frame structure in some embodiments Figure 2 ;

[0030] Figure 7 This is a schematic diagram of the ring structure in some embodiments;

[0031] in:

[0032] 1a-Back panel; 1b-Frame; 10-Outer panel; 10a-Receiving groove; 100-Mounting hole; 1000-Annular slot; 1001-Positioning ring; 101-Lens hole; 1010-Fourth airbag cavity; 1011-Fourth airbag groove; 1012-Protective ring; 11-Outer frame; 110-Button; 111-Top frame; 1110-Second airbag cavity; 1111-Second airbag groove; 112-Bottom frame; 1120-Third airbag cavity; 1121-Third airbag groove; 113-First side frame; 1130-First airbag cavity; 1131-First airbag groove; 1132-Outer groove;

[0033] 2- Annular structure; 20- Inner plate; 200- Positioning hole; 211- Second seal; 212- Third seal; 213- First seal; 2130- Inner groove;

[0034] 3-Support plate. Detailed Implementation

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0036] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0038] See appendix Figure 1 - Appendix Figure 7An embodiment of the present invention provides a protective shell, which includes a back plate 1a and a frame 1b connected around the back plate 1a. The back plate 1a and the frame 1b enclose a receiving groove 10a for accommodating electronic devices. The outer wall of the frame 1b is provided with at least one button 110. The button 110 is provided with a sealed first airbag cavity 1130.

[0039] Specifically, this protective case is used for mobile electronic devices such as mobile phones and tablets. The case is preferably made of a soft rubber material, such as thermoplastic polyurethane (TPU), which has both elasticity and cushioning properties, as well as good moldability. The button 110 is a raised structure integrally formed on the outer wall of the frame 1b. Its appearance is similar to a traditional independent button, but it is not assembled from separate parts; instead, it is directly formed from the frame 1b. To ensure that the integrally formed button 110 still has good pressing sensitivity during use, a sealed first air bladder cavity 1130 is provided inside the button 110. When the user presses the button 110, the pressing force is transmitted through the raised part of the button 110 to the first air bladder cavity 1130. Because the first air bladder cavity 1130 is sealed and has a cavity, it can undergo localized deformation and compression when subjected to external force. This deformation provides sufficient elastic displacement to the button 110, giving the user a clear pressing feedback. On the other hand, when the external force is released, the first air chamber 1130 returns the button 110 to its original position due to material rebound and air back pressure within the chamber. At the same time, the first air chamber 1130 also undergoes buffer deformation when subjected to external impact (such as a drop), so that the button 110 not only realizes the input operation function, but the first air chamber 1130 at the button 110 position also plays a dual role of shock absorption and protection, preventing the electronic device from becoming a vulnerable point due to the thin frame at the button 110 position.

[0040] In summary, by integrally molding the button 110 on the outer wall of the frame 1b and providing a sealed first airbag cavity 1130 inside the button 110, the button 110 maintains a simple overall structure while still possessing good elasticity and resilience. Compared with existing solutions that rely on independent button components, this protective shell eliminates the need for additional button 110 parts and assembly processes, thereby reducing production and labor costs. Simultaneously, the cushioning effect of the first airbag cavity 1130 provides additional protection for the button 110 during drops or impacts, enhancing the protective capability of the shell.

[0041] Reference Figure 3 and Figure 4In some embodiments, the buttons 110 include multiple buttons, each button 110 having a first airbag cavity 1130. These multiple first airbag cavities 1130 are independent and are each a sealed cavity. Since electronic devices typically have multiple operation buttons, such as volume buttons and power buttons, the protective shell uses multiple integrally formed buttons 110 corresponding to the outer wall of the frame 1b. Each button 110 has an independent first airbag cavity 1130, and these first airbag cavities 1130 are independent and not interconnected. The multiple independent first airbag cavities 1130 can provide cushioning and elasticity to their respective buttons 110, allowing users to obtain stable and sensitive feedback when pressing. The independence of the first airbag cavities 1130 avoids the situation where the function of other buttons 110 is affected by the rupture or failure of one airbag. At the same time, the size and shape of each independent first airbag cavity 1130 are easier to control during molding, simplifying the overall manufacturing process and ensuring consistency and yield in mass production.

[0042] Reference Figure 5 , Figure 6 and Figure 7 In some embodiments, the frame 1b includes an outer frame 11 and a first sealing member 213. The button 110 protrudes from the outer wall of the outer frame 11. The button 110 is recessed on one side of the inner wall of the outer frame 11 with a first airbag groove 1131. The first sealing member 213 fits against the inner wall of the outer frame 11 and covers the opening of the first airbag groove 1131 to form a first airbag cavity 1130. Specifically, a first airbag groove 1131 is recessed on the inner wall of the outer frame 11, and this first airbag groove 1131 is recessed towards the button 110. The first airbag groove 1131 makes good use of the button 110 structure protruding on the outer wall of the outer frame 11, so that while the area corresponding to the button 110 protrudes on the outer wall, a corresponding recessed space is formed on the inner wall, thus providing reserved space for the formation of the first airbag cavity 1130. Then, the outer wall of the first sealing member 213 is heat-pressed to the inner wall of the outer frame 11. After the heat-pressing connection is completed, the outer wall of the first sealing member 213 seals and encloses the first airbag groove 1131, thereby forming the first airbag cavity 1130. In other embodiments, the first sealing member 213 and the inner wall of the outer frame 11 can also be connected by adhesive.

[0043] Reference Figures 2-6In some embodiments, the outer frame 11 includes a top frame 111, a bottom frame 112, and two first side frames 113 connecting the top frame 111 and the bottom frame 112; multiple buttons 110 are provided, and the multiple buttons 110 are provided on one of the first side frames 113, or the multiple buttons 110 are respectively provided on two first side frames 113; the first sealing member 213 includes two, and the two first sealing members 213 are respectively attached to the inner walls of the two first side frames 113. Specifically, the top frame 111, the bottom frame 112, and the two first side frames 113 connecting them form a rectangular outer frame 11. The back panel 1a includes an outer panel 10, which is integrally formed with the bottom edge of the four frames, thus forming a receiving groove 10a for accommodating the electronic device together with the outer frame 11. Specifically, the button 110 protrudes from the outer wall of the first side frame 113. The first airbag groove 1131 is specifically formed on the inner wall of the first side frame 113 and extends into the button 110. The first sealing member 213 is roughly plate-shaped. The first sealing member 213 fits against the inner wall of the first side frame 113 and covers the opening of the first airbag groove 1131. The first sealing member 213 is connected to the inner wall of the first side frame 113 by a heat-pressing connection, so as to form a sealed first airbag cavity 1130 at the position of the first airbag groove 1131. Since electronic devices usually have operation buttons, such as volume buttons and power buttons, evenly distributed on both sides. In order to accommodate multiple operation keys of electronic devices, the outer frame 11 of this protective shell can be provided with multiple buttons 110 on both first side frames 113, and cooperate with the two first seals 213 of the annular structure 2 to form an independent first air bladder cavity 1130 at each button 110; for electronic devices with operation keys on only one side, one or more buttons 110 with first air bladder cavities 1130 can be provided on a single first side frame 113.

[0044] Reference Figure 5 , Figure 6 and Figure 7In some embodiments, the outer wall of the outer frame 11 is recessed with an outer groove 1132, and the button 110 protrudes from the bottom of the groove 1132. The thickness of the outer frame 11 at the outer groove 1132 is less than the thickness of the outer frame 11 at other locations. Specifically, the outer groove 1132 is specifically formed on the outer wall of the first side frame 113. By setting the outer groove 1132, the button 110 will not protrude too much on the outer wall of the first side frame 113, avoiding affecting the appearance or causing accidental touch due to excessive protrusion. At the same time, the wall thickness at the outer groove 1132 is relatively thinner, making it easier for this area to undergo elastic deformation when the user presses it, thereby improving the sensitivity and rebound of the button 110. An inner groove 2130 corresponding to the outer groove 1132 can also be provided on the side wall of the first seal 213 facing away from the button 110. The first seal 213 and the first side frame 113 fit together. The setting of the inner groove 2130 and the outer groove 1132 makes the thickness of the frame 1b at this position smaller, further reducing the overall wall thickness of the area corresponding to the button 110, so that the area has better elastic response while ensuring sealing. It also provides reserved space for the operation keys of the electronic device, so that the operation keys on the side of the electronic device will not be excessively compressed by the protective shell material, thereby ensuring the normal travel and reliable triggering of the operation keys.

[0045] Reference Figure 1 , Figure 5 and Figure 6 In some embodiments, the button 110 protrudes beyond the outer groove 1132. Specifically, to facilitate user pressing of the button 110, the button 110 protrudes from the bottom of the outer groove 1132, and the button 110 at least partially extends beyond the outer groove 1132. That is, the button 110 is slightly higher than the outer wall of the first side frame 113, forming a slight protrusion, so that the user can more easily identify the location of the button 110 and press it. In other embodiments, the height of the button 110 protruding from the bottom of the outer groove 1132 may be greater than or equal to the depth of the outer groove 1132, so that the button 110 is approximately flush with the outer wall of the first side frame 113, thereby reducing the probability of accidental button press.

[0046] Reference Figure 1 and Figure 5 In some embodiments, the buttons 110 include multiple buttons, which are spaced apart along the length of the outer groove 1132 within the same outer groove 1132; or, the buttons 110 include multiple buttons, and the outer grooves 1132 include multiple outer grooves, with at least one button 110 protruding from each outer groove 1132. Specifically, as shown... Figure 1As shown, when there are multiple buttons 110, they can be distributed within the same outer groove 1132. For example, when multiple buttons 110 correspond to the volume buttons of an electronic device, multiple buttons 110 used to adjust the same function are distributed within the same outer groove 1132, and the multiple buttons 110 are spaced apart along the length of the groove bottom of the outer groove 1132. This arrangement within the same outer groove 1132 facilitates the user's identification and pressing of multiple buttons for a single function, and the spaced arrangement helps the user distinguish different buttons 110 within the same functional area. Figure 5 As shown, when multiple buttons 110 correspond to the power button or other function keys of an electronic device, an outer groove 1132 can be provided for each button 110.

[0047] Reference Figure 3 , Figure 5 and Figure 6 In some embodiments, the frame 1b further includes a second sealing member 211 and a third sealing member 212. The inner wall of the top frame 111 is recessed with a second airbag groove 1111. The second sealing member 211 fits against the inner wall of the top frame 111 and covers the opening of the second airbag groove 1111 to form a second airbag cavity 1110. The second airbag cavity 1110 is spaced apart from the button 110. The inner wall of the bottom frame 112 is recessed with a third airbag groove 1121. The third sealing member 212 fits against the inner wall of the bottom frame 112 and covers the opening of the third airbag groove 1121 to form a third airbag cavity 1120. The third airbag cavity 1120 is spaced apart from the button 110.

[0048] Specifically, a second airbag groove 1111 is provided on the inner wall of the top frame 111. After the second sealing member 211 is heat-pressed to the top frame 111, the second sealing member 211 covers the opening of the second airbag groove 1111 and forms a sealed second airbag cavity 1110. The second airbag cavity 1110 extends along the length of the outer frame 11 and extends to the connection between the top frame 111 and the two first side frames 113. That is, the second airbag cavity 1110 is roughly a strip-shaped arc-shaped chamber, which can not only provide continuous cushioning for the top edge of the electronic device, but also provide key protection for the two corners of the top of the electronic device, thereby effectively reducing the risk of damage during a drop. Similarly, a third airbag groove 1121 can be provided on the inner wall of the bottom frame 112. After the third sealing member 212 is heat-pressed to the bottom frame 112, the third sealing member 212 covers the opening of the third airbag groove 1121 and forms a sealed third airbag cavity 1120. Furthermore, the third airbag cavity 1120 extends along the length of the bottom frame 112 and reaches the connection between the bottom frame 112 and the two first side frames 113. This allows the third airbag cavity 1120 to effectively protect the bottom and two bottom corners of the electronic device. Unlike other airbag cavities, the third airbag cavity 1120 is divided into two independent cavities. This is because a power port is typically located between the bottom frame 112 and the third seal 212 to provide space for the charging interface or other ports of the electronic device. Therefore, the third airbag cavities 1120 are distributed on both sides of the power port and extend in an arc shape, providing reliable cushioning for the two bottom corners while protecting the bottom edge of the electronic device. The second airbag cavity 1110 is spaced from the button 110, and the third airbag cavity 1120 is also spaced from the button 110. This avoids interference between the second and third airbag cavities 1110 and the button 110's pressing function, and also ensures that each airbag cavity is independent, guaranteeing the stability of the overall structure.

[0049] Reference Figure 1 , Figure 2 and Figure 7In some embodiments, one of the first seals 213, the second seal 211, the other first seal 213, and the third seal 212 are sequentially connected to form an annular structure 2, which is integrally formed by injection molding. The annular structure 2 adopts the same structural layout as the outer frame 11, that is, the second seal 211 corresponds to the top frame 111, the third seal 212 corresponds to the bottom frame 112, and the two first seals 213 correspond to the two first side frames 113 respectively. The back plate 1a also includes an inner plate 20, which is integrally formed and connected to the bottom edges of the second seal 211, the third seal 212, and the two first seals 213. In the specific manufacturing process, the annular structure 2 is first placed into the receiving groove 10a, so that the second sealing element 211 is in contact with the top frame 111, the third sealing element 212 is in contact with the bottom frame 112, and the two first sealing elements 213 are respectively in contact with the two first side frames 113. The edges of each frame are sealed together by hot pressing. At the same time, the bottom edges of the inner plate 20 and the outer plate 10 are correspondingly in contact, and a reliable surface-to-surface bond is formed by hot pressing, so that the two form a stable overall structure.

[0050] Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 To further enhance the overall structural strength, the protective shell also includes a rigid support plate 3. The outer plate 10 has mounting holes 100, and the support plate 3 is fixed within the mounting holes 100. Specifically, the area of ​​the mounting holes 100 occupies at least two-thirds of the total area of ​​the support plate 3. An annular groove 1000 is provided on the wall of the mounting holes 100, and the support plate 3 is embedded in the annular groove 1000. The support plate 3 has a positioning ring 1001 protruding from the edge of the mounting holes 100 towards the receiving groove 10a. The positioning ring 1001 is adjacent to and surrounds the mounting holes 100. The inner plate 20 has a positioning hole 200 corresponding to the positioning ring 1001. When the inner plate 20 is fitted and connected to the outer plate 10, the positioning hole 200 is fitted onto the circumferential outer wall of the positioning ring 1001, further enhancing the stability of the support plate 3 within the mounting holes 100. By setting a large-area and rigid support plate 3 to support the outer frame 11, the "collapse" or bending problem that may occur due to the outer frame 11 and the ring structure 2 being made of soft rubber material is effectively avoided, ensuring the structural stability and durability of the protective shell during use.

[0051] In summary, the protective case can be understood as consisting of three parts: an outer frame 11, an annular structure 2, and a support plate 3. Compared with traditional protective cases that require multiple independent buttons and auxiliary parts, the overall structure of this protective case is simplified, the number of parts is greatly reduced, the assembly process is simple, the production cost is significantly reduced, and the production efficiency, product consistency, and reliability are effectively improved.

[0052] Reference Figures 2-7 In some embodiments, the outer plate 10 and the inner plate 20 are provided with corresponding lens holes 101 for exposing the camera of the electronic device; the inner wall of the outer plate 10 is recessed with a fourth airbag groove 1011, which is disposed adjacent to and surrounds the lens hole 101; the inner plate 20 is fitted to the inner wall of the outer plate 10 and covers the opening of the fourth airbag groove 1011 to form a fourth airbag cavity 1010. Specifically, to improve the protection of the camera area, a protective ring 1012 is provided on the outer wall of the outer panel 10 around the lens hole 101. The protective ring 1012 is arranged adjacent to and around the lens hole 101. The protrusion of the protective ring 1012 prevents the camera inside the lens hole 101 from directly contacting the table when the electronic device is placed on a desktop or other flat surface, thus providing isolation and scratch protection. The shape of the fourth airbag groove 1011 is the same as that of the protective ring 1012. The fourth airbag groove 1011 is formed on the inner wall of the outer panel 10 and is recessed towards the protective ring 1012. This makes reasonable use of the space between the protective ring 1012 and the lens hole 101, and allows space for the fourth airbag groove 1011 to be reserved without increasing the overall thickness. When the inner panel 20 and the outer panel 10 are heat-pressed together, the inner panel 20 covers the opening of the fourth airbag groove 1011 and forms a sealed fourth airbag cavity 1010. The fourth airbag cavity 1010 is distributed around the lens hole 101, which can provide buffer protection for the area around the camera when the electronic device is dropped or impacted; at the same time, in conjunction with the protective ring 1012 protruding on the outer wall of the outer plate 10, the lens area can avoid direct contact with the external plane and has good impact resistance, thereby effectively improving the overall protection performance of the camera of the electronic device.

[0053] Reference Figure 2 and Figure 7 In some embodiments, the outer frame 11 includes a transparent portion, and the surface of the first seal 213 facing the outer frame 11 is provided with decorative patterns or designs, which can be seen through the transparent portion of the outer frame 11. Specifically, the first seal 213 occupies a significant lateral area in the overall appearance of the protective shell, and designing decorative patterns or designs there can significantly improve the product's appearance and recognizability. The transparent portion of the outer frame 11 is made of a transparent or semi-transparent material, allowing the decorative patterns or designs on the outer wall of the first seal 213 to be clearly visible.

[0054] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A protective case characterized by, The application relates to an electronic device, comprising: a back plate (1a) and a frame (1b) connected to the periphery of the back plate (1a), wherein the back plate (1a) and the frame (1b) form a receiving groove (10a) for receiving an electronic device; an outer wall of the frame (1b) is provided with at least one key (110), and the key (110) is internally provided with a sealed first air bag cavity (1130).

2. The protective case of claim 1, wherein, The key (110) comprises a plurality of keys (110), and each key (110) is internally provided with a first air bag cavity (1130), and the plurality of first air bag cavities (1130) are independent and are respectively closed cavities.

3. The protective case of claim 1, wherein, The frame (1b) comprises an outer frame (11) and a first sealing member (213), the key (110) is protruded on an outer wall of the outer frame (11), a first air bag groove (1131) is recessed on one side of an inner wall of the outer frame (11) where the key (110) is located, and the first sealing member (213) is attached to the inner wall of the outer frame (11) and covers the opening of the first air bag groove (1131) to form the first air bag cavity (1130).

4. The protective case of claim 3, wherein, An outer wall of the outer frame (11) is recessed with an outer side groove (1132), the key (110) is protruded on the groove bottom of the outer side groove (1132), and the thickness of the outer frame (11) at the outer side groove (1132) is smaller than the thickness of the outer frame (11) at other positions.

5. The protective case of claim 4, wherein, The key (110) protrudes out of the outer side groove (1132); or the protruding height of the key (110) compared with the groove bottom of the outer side groove (1132) is greater than or equal to the depth of the outer side groove (1132).

6. The protective case of claim 4, wherein, The key (110) comprises a plurality of keys (110), and the plurality of keys (110) are arranged in the same outer side groove (1132) along the length direction of the outer side groove (1132); or the key (110) comprises a plurality of keys (110), and the outer side groove (1132) comprises a plurality of outer side grooves (1132), and at least one key (110) is protruded in each outer side groove (1132).

7. The protective case of claim 3, wherein, The outer frame (11) comprises a top frame (111), a bottom frame (112) and two first side frames (113) connecting the top frame (111) and the bottom frame (112); The key (110) comprises a plurality of keys (110), and the plurality of keys (110) are arranged in the same outer side groove (1132) along the length direction of the outer side groove (1132); or the key (110) comprises a plurality of keys (110), and the outer side groove (1132) comprises a plurality of outer side grooves (1132), and at least one key (110) is protruded in each outer side groove (1132). The outer frame (11) comprises a top frame (111), a bottom frame (112) and two first side frames (113) connecting the top frame (111) and the bottom frame (112); The key (110) comprises a plurality of keys (110), and the plurality of keys (110) are arranged in the same outer side groove (1132) along the length direction of the outer side groove (1132); or the key (110) comprises a plurality of keys (110), and the outer side groove (1132) comprises a plurality of outer side grooves (1132), and at least one key (110) is protruded in each outer side groove (1132). The outer frame (11) comprises a top frame (111), a bottom frame (112) and two first side frames (113) connecting the top frame (111) and the bottom frame (112); 8. The protective case of claim 7, wherein, The frame (1b) further comprises a second sealing member (211), an inner wall of the top frame (111) is concavely provided with a second air bag groove (1111), the second sealing member (211) is attached to the inner wall of the top frame (111) and covers the opening of the second air bag groove (1111) to form a second air bag cavity (1110), and the second air bag cavity (1110) is arranged in a spaced manner with the key (110).

9. The protective case of claim 8, wherein, The second air bag cavity (1110) is arranged in an extending manner along the length direction of the top frame (111) and extends to the connection position of the top frame (111) and the two first side frames (113).

10. A protective case according to any one of claims 7-9, wherein, The frame (1b) further comprises a third sealing member (212), an inner wall of the bottom frame (112) is concavely provided with a third air bag groove (1121), the third sealing member (212) is attached to the inner wall of the bottom frame (112) and covers the opening of the third air bag groove (1121) to form a third air bag cavity (1120), and the third air bag cavity (1120) is arranged in a spaced manner with the key (110).

11. The protective case of claim 10, wherein, The third air bag cavity (1120) is arranged in an extending manner along the length direction of the bottom frame (112) and extends to the connection position of the bottom frame (112) and the two first side frames (113).

12. The protective case of claim 10, wherein, The frame (1b) further comprises a second sealing member (211), one of the first sealing members (213), the second sealing member (211), the other of the first sealing members (213) and the third sealing member (212) are sequentially connected to form a ring structure (2), and the ring structure (2) is an integrally formed structure through an injection molding process.

13. The protective case of any one of claims 3-9, wherein, The outer frame (11) comprises a transparent portion, the first sealing member (213) is provided with a decorative pattern or a decorative design on the surface of one side of the outer frame (11), and the decorative pattern or the decorative design can be seen through the transparent portion of the outer frame (11).

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