A protective shell

Abstract

This utility model provides a protective shell, which includes a housing, a base plate, and a frame assembly. The frame assembly surrounds the periphery of the base plate to form an accommodating space. A receiving groove is recessed on the side of the frame assembly opposite to the accommodating space. An anti-slip member is installed within the receiving groove. One of the receiving groove and the anti-slip member has a positioning hole, and the other has a positioning post matching the positioning hole. The positioning post is inserted into the positioning hole to position the anti-slip member within the receiving groove, and the anti-slip member is fixedly connected to the frame assembly. This utility model, by providing a positioning hole and a positioning post, enables precise positioning between the anti-slip member and the frame assembly, facilitating subsequent connection using ultrasonic welding, bonding, or other processes. This ensures the thickness of the protective shell remains within the necessary range, improving product yield.

Description

Technical Field

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

[0002] With the rapid development of technology, electronic devices such as mobile phones and tablets have become widely used. To protect these devices from drops, users commonly use airbags with anti-slip strips on the edges to prevent them from slipping and being damaged. In existing airbag manufacturing processes, the anti-slip strips are typically bonded to the shell substrate using a two-stage in-mold injection molding process. Specifically, this process requires pre-preparing the shell substrate, then placing it in an injection mold, and finally casting molten anti-slip strip material onto a designated area on the shell surface through a second injection molding process to achieve a mechanical bond between the two. During this process, injection molding requires a high-temperature environment to melt the raw materials, which necessitates a certain thickness for both the anti-slip strip and the shell. If the thickness is too thin, it will cause thermal deformation of the shell, affecting the product yield. If the thickness is too thick, it may result in a thick final product that is inconvenient to carry and use. Furthermore, after injection molding, the anti-slip strip and the shell are integrated. If only post-processing of the anti-slip strip is desired, such as painting, other areas need to be covered. This process is quite complicated and requires high operational precision. If the covering is not complete, paint may easily be sprayed onto the shell, affecting the appearance and use of the finished product. Utility Model Content

[0003] In order to improve at least some of the shortcomings or deficiencies in the prior art, the embodiments of this utility model provide a protective shell, which, by setting positioning holes and positioning posts, enables precise positioning between the anti-slip parts and the frame assembly, facilitating subsequent connection using other processes such as ultrasonic welding and bonding, reducing the risk of thermal deformation of the shell, and improving product yield.

[0004] On one hand, the present invention provides a protective shell, comprising: a shell, the shell including a base plate and a frame assembly, the frame assembly surrounding the periphery of the base plate to form an accommodating space together with the base plate, the side of the frame assembly opposite to the accommodating space having a recessed accommodating groove; and an anti-slip member installed in the accommodating groove; wherein, one of the accommodating groove and the anti-slip member is provided with a positioning hole, and the other is provided with a positioning post matching the positioning hole, the positioning post being inserted into the positioning hole to position the anti-slip member in the accommodating groove, and the anti-slip member being fixedly connected to the frame assembly.

[0005] In some embodiments, the receiving groove includes a bottom connecting surface and a side connecting surface, wherein the side connecting surface is inclined relative to the normal direction of the bottom connecting surface, such that the included angle between the bottom connecting surface and the side connecting surface is greater than 90° and less than 180°.

[0006] In some embodiments, the sidewall of the anti-slip member is inclined relative to the thickness direction of the anti-slip member to match the side connection surface of the receiving groove.

[0007] In some embodiments, the thickness of the anti-slip member is less than or equal to the depth of the receiving groove, and the anti-slip member is an elongated strip structure extending along the length direction of the frame assembly.

[0008] In some embodiments, the surface of the anti-slip member facing away from the accommodating space is provided with anti-slip texture.

[0009] In some embodiments, the frame assembly includes an outer frame and an inner frame. The outer frame is connected to the base plate and together with the base plate forms the receiving space. The inner frame is disposed on the side of the outer frame close to the receiving space, and the receiving groove is disposed on the side of the outer frame opposite to the receiving space.

[0010] In some embodiments, the outer frame includes two first side frames extending along the length direction of the base plate and a second side frame connected between the two first side frames, and the receiving groove includes two and is respectively disposed on the two first side frames.

[0011] In some embodiments, a recess is provided on the side of the outer frame opposite to the receiving groove, and the inner frame is accommodated in the recess.

[0012] In some embodiments, at least a portion of the outer border and the inner border are spaced apart to form a buffer space between the outer border and the inner border.

[0013] In some embodiments, the connection between the first side border and the second side border of the outer frame is spaced apart from the corresponding inner frame to form the buffer space; and / or, the second side border of the outer frame is spaced apart from the corresponding inner frame to form the buffer space.

[0014] As can be seen from the above, the above-mentioned technical features of this utility model can have one or more of the following beneficial effects: by setting positioning posts and positioning holes, after the anti-slip parts and the frame components of the shell are positioned and installed through positioning posts and positioning holes, they can be connected by ultrasonic welding, bonding and other processes, which reduces the risk of thermal deformation of the shell, improves the yield of the protective shell, ensures that the thickness of the protective shell is within the necessary range, and facilitates the use and carrying of the protective shell; moreover, the anti-slip parts and the shell can be manufactured separately, and the anti-slip parts or the shell can be processed before the connection between the anti-slip parts and the frame components is realized, which simplifies the process and further improves the yield of the protective shell. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0016] Figure 1 This is a schematic diagram of the structure of a protective shell provided in an embodiment of the present utility model.

[0017] Figure 2 This is an exploded structural diagram of a protective shell provided for an embodiment of the present utility model.

[0018] Figure 3 for Figure 1 A cross-sectional view at point AA along the middle edge.

[0019] Figure 4 This is a structural schematic diagram of a protective shell provided as an embodiment of the present utility model from another perspective.

[0020] Figure 5 for Figure 4 Schematic diagram of cross section at the middle edge BB.

[0021] Figure label:

[0022] 10. Base plate; 20. Frame assembly; 210. Receiving groove; 211. Bottom connecting surface; 212. Side connecting surface; 220. Outer frame; 221. First side frame; 222. Second side frame; 223. Embedded groove; 230. Inner frame; 30. Receiving space; 40. Anti-slip component; 410. Anti-slip texture; 510. Positioning hole; 520. Positioning post; 60. Buffer space; 70. Housing. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] See Figure 1 and Figure 2This utility model provides a protective shell that can be fitted onto electronic products. The protective shell includes a housing 70 and an anti-slip component 40. The housing 70 includes a base plate 10 and a frame assembly 20. The frame assembly 20 surrounds the periphery of the base plate 10 to form a receiving space 30 for accommodating electronic equipment. A receiving groove 210 is recessed on the side of the frame assembly 20 opposite to the receiving space 30. The anti-slip component 40 is installed in the receiving groove 210. The size and shape of the receiving groove 210 match the anti-slip component 40 to ensure that the anti-slip component 40 can be installed in the groove. One of the receiving groove 210 and the anti-slip component 40 is provided with a positioning hole 510, and the other is provided with a positioning post 520 that matches the positioning hole 510. The positioning post 520 is inserted into the positioning hole 510 to position the anti-slip component 40 in the receiving groove 210, and the anti-slip component 40 is fixedly connected to the frame assembly 20.

[0025] Specifically, after the shell 70 and the anti-slip component 40 are formed, the anti-slip component 40 is placed in the receiving groove 210. The positioning pins 520 and positioning holes 510 work together to achieve precise positioning between the anti-slip component 40 and the frame assembly 20, ensuring the positioning accuracy of the anti-slip component 40. After positioning the anti-slip component 40 and the frame assembly 20, they can be connected by welding, bonding, or other methods, reducing the risk of thermal deformation of the frame assembly 20 and improving product yield. Furthermore, the separate fabrication of the frame assembly 20 and the anti-slip component 40 reduces the minimum process wall thickness of each layer, allowing for a thinner overall protective shell and improving the user's grip. Since the anti-slip component 40 and the shell 70 are fabricated separately, any processing of the anti-slip component 40, such as painting, can be completed before connecting it to the frame assembly 20, simplifying the process, avoiding mutual interference during processing, ensuring the appearance and usability of the finished protective shell, and further improving the yield rate.

[0026] The base plate 10 protects the back of the electronic product from scratches and wear. For example, the base plate 10 has through holes to expose the camera and flash of the electronic device. The frame assembly 20 protects the sides of the electronic product from scratches and wear. For example, the frame assembly 20 has clearance openings to avoid the buttons, charging holes and other openings on the side of the electronic device.

[0027] The anti-slip component 40, for example, is made of silicone, and its surface microstructure (such as diamond-shaped bumps or wavy patterns) increases friction and reduces the risk of slipping. The anti-slip component 40 also has clearance openings to avoid buttons or holes on the side of electronic devices, ensuring that button functions are not affected.

[0028] Among them, reference Figure 2For example, the anti-slip component 40 is provided with positioning posts 520, and the receiving groove 210 is provided with positioning holes 510. For example, there are two positioning holes 510, which are respectively located near the opposite ends of the receiving groove 210. Correspondingly, there are two positioning posts 520, which are respectively located near the opposite ends of the anti-slip component 40. By setting positioning posts 520 at different positions on the anti-slip component 40, the anti-slip component 40 can be stably fixed in the receiving groove 210 before welding with the frame assembly 20, without displacement or shaking, thus further ensuring the accuracy of the anti-slip component 40. Furthermore, the positioning hole 510 can also be provided on the anti-slip component 40, and the positioning post 520 can be provided on the receiving groove 210; or, the anti-slip component 40 has both positioning holes 510 and positioning posts 520, and the receiving groove 210 has both positioning holes 510 and positioning posts 520; the number and shape of the positioning holes 510 and positioning posts 520 are not limited here.

[0029] See Figure 5 In some embodiments, the receiving groove 210 includes a bottom connecting surface 211 and a side connecting surface 212. The side connecting surface 212 is inclined relative to the normal direction of the bottom connecting surface 211, so that the included angle between the bottom connecting surface 211 and the side connecting surface 212 is greater than 90° and less than 180°, that is, the included angle C in the figure is greater than 90° and less than 180°. Since the fusion process between the side connecting surface 212 and the frame assembly 20 is achieved by applying pressure in the thickness direction of the anti-slip component 40, if the side connecting surface 212 and the bottom connecting surface 211 are perpendicular to each other, there is no force between the side connecting surface 212 and the side of the anti-slip component 40. Only the bottom connecting surface 211 and the bottom surface of the anti-slip component 40 near the bottom connecting surface 211 are subjected to force. As a result, the side of the anti-slip component 40 and the side connecting surface of the receiving groove 210 will not be fused together. Only the side of the anti-slip component 40 near the bottom connecting surface 211 can be fused with the bottom connecting surface 211 of the receiving groove 210, which can easily cause the anti-slip component 40 to warp. Therefore, the included angle between the bottom connecting surface 211 and the side connecting surface 212 is greater than 90° and less than 180°, so that the side of the anti-slip member 40 near the bottom connecting surface 211 can be fused with the bottom connecting surface 211 of the receiving groove 210, and the side of the anti-slip member 40 is fused with the side connecting surface 212 of the receiving groove 210, so that the anti-slip member 40 and the receiving groove 210 are fully welded together, and the anti-slip member 40 can be stably installed in the receiving groove 210.

[0030] Furthermore, in some embodiments, the sidewall of the anti-slip member 40 is inclined relative to the thickness direction of the anti-slip member 40 to match the side connection surface 212 of the receiving groove 210. The inclined sidewall of the anti-slip member 40 is in close contact with the side connection surface 212 of the receiving groove 210, which increases the contact area between the anti-slip member 40 and the receiving groove 210, further ensuring a stable connection between the anti-slip member 40 and the receiving groove 210.

[0031] See Figure 3 In some embodiments, the thickness of the anti-slip element 40 is less than or equal to the depth of the receiving groove 210, and the anti-slip element 40 is an elongated strip structure extending along the length of the frame assembly 20. When the anti-slip element 40 is embedded in the receiving groove 210, the surface of the anti-slip element 40 is flush with or slightly lower than the surface of the frame assembly 20. Since the anti-slip element 40 is an elongated strip structure, it ensures that the user's fingers can contact the anti-slip element 40 when holding the protective case, increasing the friction area between the user's fingers and the anti-slip performance of the protective case. The thickness of the anti-slip element 40 is, for example, 0.55mm-1.20mm, and the depth of the receiving groove 210 is, for example, 0.55mm-1.20mm.

[0032] See Figure 4 In some embodiments, the surface of the anti-slip member 40 facing away from the receiving space 30 is provided with anti-slip texture 410. The anti-slip texture 410 can increase the coefficient of friction of the surface of the anti-slip member 40 and increase the friction force. The anti-slip texture 410 can be, for example, raised dots, stripes, continuous wavy or sawtooth undulations, which can enhance the friction force when the user holds the grip.

[0033] See Figure 2 In some embodiments, the frame assembly 20 includes an outer frame 220 and an inner frame 230. The outer frame 220 is connected to the base plate 10 and together with the base plate 10 forms an accommodating space 30. The inner frame 230 is disposed on the side of the outer frame close to the accommodating space, and the accommodating groove 210 is disposed on the side of the outer frame 220 away from the accommodating space 30.

[0034] Specifically, the anti-slip component 40 is placed in the receiving groove 210, and the anti-slip component 40 is positioned with the outer frame 220 through the cooperation of the positioning hole 510 and the positioning post 520 and connected by a process. Then, the inner frame 230 is placed in the outer frame 220, and the outer frame 220 and the inner frame 230 are connected by welding. In the width direction of the base plate 10, the thickness of the outer frame 220 is, for example, 1.75mm-2.40mm, and the thickness of the inner frame 230 is, for example, 0.55mm-1.20mm.

[0035] The outer frame 220 is made of soft rubber material, for example. The outer frame 220 is fitted over the inner frame 230, which can ensure the strength of the electronic device protective case, give the protective case a good feel, and the soft outer frame 220 can also play a cushioning role when dropped, thus achieving drop protection.

[0036] The outer frame 220, inner frame 230 and anti-slip parts 40 are manufactured separately, which can reduce the minimum process wall thickness of each layer, making the overall protective shell thinner and improving the user's feel when using it.

[0037] See Figure 2 In some embodiments, the outer frame 220 includes two first side frames 221 extending along the length of the base plate 10 and a second side frame 222 connecting the two first side frames 221. The receiving groove 210 includes two grooves, each disposed on one of the two first side frames 221. When a user holds an electronic product with a protective case, the side of the product is the main contact area when the user holds it with one or both hands. The anti-slip element 40, disposed on the first side frame 221 of the outer frame 220, can precisely match the finger contact points, improving the anti-slip performance of the protective case and reducing the risk of the electronic product falling. Furthermore, placing the anti-slip element 40 in the side area requires relatively low structural strength; the anti-slip element 40 can be locally thickened to achieve functional reinforcement without increasing the overall thickness of the protective case.

[0038] See Figure 3 In some embodiments, a groove 223 is provided on the side of the outer frame 220 opposite to the receiving groove 210, and the inner frame 230 is accommodated in the groove 223. The inner frame 230 is securely covered by the outer frame 220, making the combination of the outer frame 220 and the inner frame 230 tighter.

[0039] See Figure 5 In some embodiments, at least a portion of the outer frame 220 and the inner frame 230 are spaced apart to form a buffer space 60 between them. The buffer space 60 is filled with air. When the protective case is fitted onto an electronic device such as a mobile phone or tablet, and the device falls and collides with the ground, the impact force compresses and deforms the buffer space 60, thus buffering the impact and providing drop protection. Furthermore, a support member may be provided within the buffer space 60, contacting either the outer frame 220 or the inner frame 230. When the electronic product falls, the impact force compresses the buffer space 60. In this case, the support member can be positioned between the outer frame 220 and the inner frame 230, ensuring that even when compressed, a portion of the buffer space 60 remains filled with air, achieving an airbag-like cushioning effect.

[0040] In some embodiments, a buffer space 60 is formed between the connection point of the first side frame 221 and the second side frame 222 of the outer frame 220 and the corresponding inner frame 230. That is, a buffer space 60 is formed between the four corners of the outer frame 220 and the four corners of the inner frame 230. When an electronic device is dropped, the four corners are usually the first parts to hit the ground. In particular, the impact force is concentrated in the corner area, which can easily cause damage to the screen or internal components. By setting the buffer space 60 at the four corners, a buffer layer can be formed in the high-risk area to absorb and disperse the impact energy, effectively protecting the electronic device from being damaged.

[0041] In another embodiment, a buffer space 60 is formed between the second side frame 222 of the outer frame 220 and the corresponding inner frame 230, that is, a buffer space 60 is formed between the short frame of the outer frame 220 and the corresponding inner frame 230. When an electronic device is dropped, the short frame (such as the top / bottom frame) is more likely to withstand concentrated impact force during vertical or horizontal drops due to its small contact area and relatively thin structure. By providing a buffer space 60 between the second side frame 222 of the outer frame 220 and the corresponding inner frame 230, longitudinal impact energy can be quickly absorbed, preventing stress from being transmitted to the screen of the electronic device.

[0042] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0043] Furthermore, it is understood that the foregoing embodiments are merely illustrative examples of this utility model. Provided that the technical features do not conflict, the structure is not contradictory, and the purpose of this utility model is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A protective shell, characterized in that, include: A housing (70), the housing (70) including a base plate (10) and a frame assembly (20), the frame assembly (20) surrounding the periphery of the base plate (10) to form an accommodating space (30) together with the base plate (10), and a receiving groove (210) recessed on the side of the frame assembly (20) opposite to the accommodating space (30); and Anti-slip component (40) is installed in the receiving groove (210); One of the receiving groove (210) and the anti-slip member (40) is provided with a positioning hole (510), and the other is provided with a positioning post (520) that matches the positioning hole (510). The positioning post (520) is inserted into the positioning hole (510) to position the anti-slip member (40) in the receiving groove (210), and the anti-slip member (40) is fixedly connected to the frame assembly (20).

2. The protective shell as described in claim 1, characterized in that, The receiving groove (210) includes a bottom connecting surface (211) and a side connecting surface (212). The side connecting surface (212) is inclined relative to the normal direction of the bottom connecting surface (211) so that the included angle between the bottom connecting surface (211) and the side connecting surface (212) is greater than 90° and less than 180°.

3. The protective shell as described in claim 2, characterized in that, The sidewall of the anti-slip member (40) is inclined relative to the thickness direction of the anti-slip member (40) to match the side connection surface (212) of the receiving groove (210).

4. The protective shell as described in claim 1, characterized in that, The thickness of the anti-slip member (40) is less than or equal to the groove depth of the receiving groove (210), and the anti-slip member (40) is a long strip structure extending along the length direction of the frame assembly (20).

5. The protective shell as described in claim 1, characterized in that, The surface of the anti-slip member (40) opposite to the accommodating space (30) is provided with anti-slip texture (410).

6. The protective shell as described in claim 1, characterized in that, The frame assembly (20) includes an outer frame (220) and an inner frame (230). The outer frame (230) is connected to the base plate (10) and together with the base plate (10) forms the accommodating space (30). The inner frame (230) is disposed on the side of the outer frame (220) close to the accommodating space (30). The accommodating groove (210) is disposed on the side of the outer frame (220) away from the accommodating space (30).

7. The protective shell as described in claim 6, characterized in that, The outer frame (220) includes two first side frames (221) extending along the length direction of the base plate (10) and a second side frame (222) connected between the two first side frames (221). The receiving slot (210) includes two slots and is respectively disposed on the two first side frames (221).

8. The protective shell as described in claim 6, characterized in that, The outer frame (220) has a groove (223) on the side opposite to the receiving groove (210), and the inner frame (230) is accommodated in the groove (223).

9. The protective shell as described in claim 7, characterized in that, The outer frame (220) and the inner frame (230) are at least partially spaced apart to form a buffer space (60) between the outer frame (220) and the inner frame (230).

10. The protective shell as described in claim 9, characterized in that, The connection points of the first side border (221) and the second side border (222) of the outer border (220) are spaced apart from the corresponding inner border (230) to form the buffer space (60); and / or, The second side border (222) of the outer border (220) is spaced apart from the corresponding inner border (230) to form the buffer space (60).

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