Mobile phone shell with air bags arranged comprehensively

Abstract

The mobile phone shell is mainly composed of a bottom plate and a lining, the bottom plate comprises a back plate and side plates and is provided with a camera position, a volume key, a charging port and other openings, and the lining and the bottom plate are both made of plastic-containing materials and connected together through the high-frequency hot melting technology to form an air bag structure. In order to enhance the stability and the buffering effect of the mobile phone shell, hot melting areas are arranged at the joints of the bottom plate and the side plates and at all opening positions. The hot melting area is designed in various schemes, including uninterrupted linear shapes, interrupted dot shapes and the like, so that different use requirements and stress conditions are met. When the mobile phone is impacted, the air bag structure can quickly absorb and disperse the impact force, so that the mobile phone is effectively protected from being damaged. The mobile phone shell has the advantages of being reasonable in structure, remarkable in buffering effect, safe and reliable to use and the like.

Description

Technical Field

[0001] The present invention relates to the field of mobile phone accessories, and particularly to a mobile phone case with a comprehensive airbag arrangement. Background Art

[0002] With the popularization of smart phones, mobile phone cases, as an important part of the mobile phone accessory market, have continuously innovated in their functions and designs to meet the growing needs of consumers. Among them, airbag mobile phone cases have gradually gained favor in the market due to their unique anti-drop protection performance. However, while existing airbag mobile phone cases provide a certain degree of protection, there are still many deficiencies.

[0003] In existing airbag mobile phone cases, appearance and portability are major issues. The airbags of many airbag mobile phone cases are exposed, which affects the aesthetics of the mobile phone case and is easily touched during daily use, causing inconvenience. In addition, some airbag mobile phone cases are relatively large in volume when not inflated, resulting in the overall bulkiness of the mobile phone case and being inconvenient to carry, while their shapes become bloated after inflation, ruining the original aesthetics of the mobile phone.

[0004] In terms of airbag layout and protection effect, existing airbag mobile phone cases have obvious deficiencies. Their airbag layouts are scattered and the gaps between airbags are relatively large, and they cannot form an integral protection when subjected to impacts, with limited buffering effects. For example, some airbag mobile phone cases only have airbags set at the four corners or edges of the mobile phone, and the protection for the back and sides of the mobile phone is not comprehensive enough. At the same time, the connection between the airbags and the mobile phone case of some airbag mobile phone cases is not firm enough, and the airbags are prone to separating from the mobile phone case when subjected to impacts, further reducing the protection effect.

[0005] Durability and cost are also deficiencies of existing airbag mobile phone cases. The airbags of some airbag mobile phone cases are disposable and cannot be recycled after being inflated and used, increasing the usage cost. At the same time, the manufacturing processes of some airbag mobile phone cases are complex, resulting in relatively high production costs and expensive prices, which limits their market promotion.

[0006] In summary, existing airbag mobile phone cases have many deficiencies in terms of appearance, protection effect, and durability, which limit their further development and application. Therefore, a mobile phone case with a comprehensive airbag arrangement is needed to overcome the above problems and provide a more beautiful, practical, and reliable mobile phone protection solution for users. Summary of the Invention

[0007] The purpose of this part is to outline some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract and title of the present application, to avoid obscuring the purpose of this part, the abstract, and the title. However, such simplifications or omissions shall not be used to limit the scope of the present invention.

[0008] In view of the above problems and / or those existing in the prior art, the present invention is proposed.

[0009] Therefore, the first technical problem to be solved by the present invention is that in the existing design, the airbag is exposed, which affects the overall aesthetics of the mobile phone case and is easily touched during daily use, affecting the user experience.

[0010] The second technical problem to be solved by the present utility model is that the airbag layout is scattered, and there is a problem of a relatively large gap between airbags, resulting in the inability to form an integral protection when impacted, and the buffering effect is limited.

[0011] The present invention provides the following technical solution: A mobile phone case with airbags arranged comprehensively, having a bottom plate and a lining. The bottom plate includes a back plate and side plates. The back plate has an opening for the camera position, and the side plates have functional openings such as volume and charging positions. The side plates enclose to form an opening for accommodating the mobile phone body.

[0012] Both the bottom plate and the lining are plastic-containing materials, and the bottom plate and the lining can be connected together through a hot melt area formed by high-frequency hot melting; the hot melt areas at all opening positions are complete and uninterrupted hot melt areas.

[0013] Preferably, the hot melt area at the opening position is a complete and uninterrupted line-shaped hot melt area arranged along the opening position.

[0014] Place the lining material and the bottom plate material in a hot melting device, and the device will heat according to the preset temperature and time parameters. During the heating process, the temperature needs to be precisely controlled within the melting temperature range of the material to ensure that the material can be fully softened without degradation or damage.

[0015] When the material is heated to an appropriate temperature, quickly bond the lining material and the bottom plate material together. During the bonding process, the air between the two layers of materials is enclosed therein, forming an air layer. The bonding pressure and speed need to be precisely controlled to ensure the uniformity of the thickness and distribution of the air layer. Excessive pressure may cause the material to be over-extruded, and the air layer to be too thin or even disappear; too little pressure may cause the material to be insecurely connected, resulting in air leakage or separation. The bonding speed is usually between 10 and 30 centimeters per minute, and the specific speed is adjusted according to the material characteristics and equipment performance.

[0016] After the bonding is completed, place the material in a cooling device for cooling and shaping. The cooling process needs to be rapid and uniform to ensure that the shape and position of the air layer are fixed. Usually, air cooling or water cooling is used, and the cooling time is generally between 10 and 30 seconds. After cooling, the lining material and the bottom plate material form a firm connection in the hot melt connection area, and the air layer is stably locked between the two layers of materials, forming an airbag with a buffering function.

[0017] The bottom plate and the inner lining are connected by high-frequency heat melting, and the heat-melted areas at all the opening positions are complete and uninterrupted heat-melted areas. This structure ensures that the airbag will not leak or separate during use, improving the durability and reliability of the mobile phone case.

[0018] During use, when the mobile phone is impacted, the air layer can play a buffering and protective role. Specifically, when the mobile phone falls or is hit, the air in the air layer will be compressed, thereby absorbing and dispersing the impact force and reducing the direct impact on the mobile phone.

[0019] As a preferred solution, the inner lining material usually has good flexibility and elasticity, such as TPU (thermoplastic polyurethane), etc., to ensure a tight fit with the mobile phone and a comfortable touch; further, the bottom plate material is mostly a hard material such as PC (polycarbonate), etc., to provide necessary support and protection. Because during the impact process, the impact force is transmitted from the bottom plate to the air layer, and then from the air layer to the inner lining material. If the inner lining material is designed as a hard material, it cannot effectively absorb and disperse the impact force like a soft material, but will directly transmit part of the impact force to the mobile phone. This may cause the mobile phone to receive a greater impact when it falls, thereby increasing the risk of damage.

[0020] To limit the movement of the inner lining, preferably, a heat-melted area is provided around the connection of the bottom and the side plates;

[0021] As one of the preferred solutions, the heat-melted area is a complete and uninterrupted linear heat-melted area around the connection of the bottom plate and the side plates;

[0022] As one of the preferred solutions, the heat-melted area is an intermittent dot-shaped heat-melted area around the connection of the bottom plate and the side plates;

[0023] As one of the preferred solutions, the heat-melted area is an uninterrupted linear heat-melted area at the two-side connections of the bottom plate and the side plates;

[0024] As one of the preferred solutions, the heat-melted area is an intermittent dot-shaped heat-melted area at the two-side connections of the bottom plate and the side plates;

[0025] As one of the preferred solutions, the heat-melted area is an uninterrupted linear heat-melted area at the upper and lower connections of the bottom plate and the side plates;

[0026] As one of the preferred solutions, the heat-melted area is an intermittent dot-shaped heat-melted area at the upper and lower connections of the bottom plate and the side plates;

[0027] The beneficial effects of the present invention:

[0028] 1. Aesthetic improvement: By hiding the airbag between the bottom plate and the inner lining, the problem that the exposed airbag of the existing airbag mobile phone case affects the aesthetics is solved, making the appearance of the mobile phone case more neat and beautiful, meeting the user's requirements for the appearance of the mobile phone case.

[0029] 2. Comprehensive protection: The airbags are arranged comprehensively inside the mobile phone case, including the back plate and the side plates, ensuring that when the mobile phone is impacted, the entire surface of the mobile phone can be effectively buffered and protected, avoiding protection dead angles caused by the scattered layout of the airbags, and improving the anti-drop performance of the mobile phone.

[0030] 3. Stable connection structure: The bottom plate and the inner lining are connected by high-frequency hot melting, and the hot melting areas at all opening positions are complete and uninterrupted hot melting areas. This structure ensures that the airbag will not leak or separate during use, improving the durability and reliability of the mobile phone case.

[0031] 4. Optimized material selection: The inner lining material uses TPU with good flexibility and elasticity, and the bottom plate material uses hard PC. This combination not only ensures a comfortable grip of the mobile phone case but also provides necessary support and protection. At the same time, when impacted, the inner lining material can effectively absorb and disperse the impact force, reducing damage to the mobile phone. Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0033] Figure 1 It is a schematic structural diagram of the mobile phone case of Embodiment 1 of the present invention;

[0034] Figure 2 It is a schematic structural diagram of the bottom plate of the mobile phone case of Embodiment 1 of the present invention;

[0035] Figure 3 It is a schematic cross-sectional structural diagram of the mobile phone case of Embodiment 1 of the present invention;

[0036] Figure 4 It is a schematic diagram of the hot melting area and distribution of the mobile phone case of Embodiment 1 of the present invention;

[0037] Figure 5 It is a schematic diagram of the hot melting area distribution at the connection of the bottom plate and the side plates of the mobile phone case of Embodiment 2 of the present invention;

[0038] Figure 6 It is a schematic diagram of the hot melting area distribution at the connection of the bottom plate and the side plates of the mobile phone case of Embodiment 3 of the present invention;

[0039] Figure 7 Schematic diagram of the distribution of the hot-melt area at the connection between the bottom plate and the side plate of the mobile phone case according to Embodiment 4 of the present invention;

[0040] Figure 8 Schematic diagram of the distribution of the hot-melt area at the connection between the bottom plate and the side plate of the mobile phone case according to Embodiment 5 of the present invention.

[0041] Wherein:

[0042] 1 - Bottom plate; 11 - Back plate; 111 - Camera position opening; 12 - Side plate; 121 - Volume button opening; 122 - Charging port opening; 13 - Mobile phone accommodation opening;

[0043] 2 - Inner lining;

[0044] 3 - Air layer;

[0045] 4 - Hot-melt area at the opening position;

[0046] 5 - Hot-melt area at the connection between the bottom plate and the side plate; 51 - Continuous linear hot-melt area; 52 - Discontinuous dot-shaped hot-melt area. Detailed implementation manners

[0047] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings of the specification.

[0048] In the following description, many specific details are set forth to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0049] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0050] Thirdly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0051] Embodiment 1

[0052] A mobile phone case with a comprehensively arranged airbag, whose structure mainly includes a bottom plate 1 and a lining 2. The bottom plate 1 is composed of a back plate 11 and side plates 12. A camera position opening 111 is provided on the back plate 11, and necessary openings such as a volume key opening 121 and a charging port opening 122 are provided on the side plates 12. The side plates 12 enclose an opening 13 for accommodating the mobile phone. Both the bottom plate 1 and the lining 2 are made of plastic-containing materials. Specifically, the material of the lining 2 is selected as TPU thermoplastic polyurethane with good flexibility and elasticity to ensure close fitting with the mobile phone and comfortable touch; the material of the bottom plate 1 is selected as a hard material such as PC polycarbonate to provide necessary support and protection.

[0053] The bottom plate 1 and the lining 2 are connected together by high-frequency hot melt technology, and the air layer 3 is stably locked between the two layers of materials as an airbag structure. At all opening positions, such as the camera position opening 111, the volume key opening 121, the charging port opening 122, etc., complete and uninterrupted hot melt areas 4 are provided. These hot melt areas 4 are preferably in the shape of complete and uninterrupted lines arranged along the opening positions to ensure the structural strength and sealing performance at the openings.

[0054] In order to limit the movement of the lining 2 and enhance the overall stability of the mobile phone case, a hot melt area 5 is also provided around the connection between the bottom plate 1 and the side plates 12. Specifically, the hot melt area 5 is a complete and uninterrupted line-shaped hot melt area around the connection between the bottom plate 1 and the side plates 12, which can not only ensure the firmness of the connection but also maintain the overall beauty of the mobile phone case.

[0055] Embodiment 2

[0056] The basic structure of this embodiment is the same as that of Embodiment 1, and the difference lies in the design of the hot melt area 5 at the connection between the bottom plate 1 and the side plates 12. In this embodiment, in order to increase a certain degree of flexibility while ensuring the connection firmness, the hot melt area 5 is designed as an intermittent dot-shaped hot melt area around the connection between the bottom plate 1 and the side plates 12. This design can not only provide sufficient connection strength at key positions but also allow the lining 2 material to undergo slight deformation to a certain extent when subjected to impact, so as to better absorb and disperse the impact force.

[0057] Embodiment 3

[0058] This embodiment is also improved based on the basic structure of Embodiment 1, and the main difference lies in the specific arrangement method of the hot melt area 5 at the connection between the bottom plate 1 and the side plates 12. Considering the force-bearing situation of the mobile phone case during actual use, in this embodiment, the hot melt area 5 is designed as an uninterrupted linear hot melt area at the connections on both sides of the bottom plate 1 and the side plates 12. This design can more effectively limit the movement of the lining 2 material under lateral impact and improve the protection ability of the mobile phone case to the side of the mobile phone.

[0059] Embodiment 4

[0060] Based on Embodiment 1, this embodiment makes another innovative design for the hot-melt area 5 at the connection between the bottom plate 1 and the side plate 12. Specifically, the hot-melt area 5 is set as an uninterrupted linear hot-melt area at the upper and lower connections of the bottom plate 1 and the side plate 12. This design can enhance the structural strength of the mobile phone case in the vertical direction. Especially when the mobile phone drops, it can effectively prevent the material of the inner lining 2 from separating from the bottom plate 1, thus ensuring the integrity of the airbag structure and improving the buffering and protection effects of the mobile phone case.

[0061] Embodiment 5

[0062] This embodiment combines the advantages of the foregoing embodiments and proposes a more flexible and comprehensive design scheme for the hot-melt area 5. Specifically, an uninterrupted linear hot-melt area 51 and an intermittent dot-shaped hot-melt area 52 are simultaneously set around the connection between the bottom plate 1 and the side plate 12. The linear hot-melt area 51 is mainly arranged at the key stress-bearing parts of the connection to ensure the connection strength; while the dot-shaped hot-melt area 52 is arranged at relatively less important positions to increase a certain degree of flexibility. This composite hot-melt area 5 design not only ensures the overall stability of the mobile phone case but also improves its buffering and protection capabilities when subjected to impacts.

[0063] Importantly, it should be noted that the configurations of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (e.g., temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed can be composed of multiple parts or elements, the positions of the elements can be inverted or otherwise changed, and the nature, number or position of discrete elements can be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangements of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to specific embodiments but extends to various modifications that still fall within the scope of the appended claims.

[0064] In addition, to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described, i.e., those features that are not relevant to the currently contemplated best mode of carrying out the invention or those features that are not relevant to the implementation of the invention).

[0065] It should be understood that, in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, fabrication, and production.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A mobile phone case with airbags arranged all over, characterized in that: include: The bottom plate is composed of a back plate and side plates, wherein the back plate is provided with a camera opening, and the side plates are provided with functional openings and enclosed to form a mobile phone accommodating cavity; An inner lining connected to the bottom plate by hot-melt connection to form a closed structure; In the connection interface between the bottom plate and the inner lining, a complete and uninterrupted hot-melt sealing area is formed at all opening edges; The bottom plate and the inner liner are connected by hot melting to form at least one closed air cavity.

2. The mobile phone case with airbags arranged all over according to claim 1, characterized in that: The hot-melt sealing area is in a continuous linear structure at the edge of the opening.

3. The mobile phone case with airbags arranged all over according to claim 1, characterized in that: A reinforced hot-melt structure is provided at the connection between the side plate and the back plate, and the reinforced hot-melt structure is selected from one or a combination of the following forms: A continuous linear hot melt zone distributed circumferentially along the joint; Discrete point-like hot melt zones spaced along the joint; Linear or intermittent hot melt tapes are provided on both sides of the joint; Linear or intermittent hot melt zones are set at the upper and lower ends of the joint.

4. The mobile phone case with airbags arranged all over according to claim 3, characterized in that: The reinforced hot-melt structure includes a composite connection mode, in which a linear hot-melt belt is arranged in a stress-bearing area, and a point-shaped hot-melt point is arranged in a non-stress-bearing area.

5. The mobile phone case with airbags arranged all over according to claim 1, characterized in that: The inner lining is made of flexible thermoplastic polyurethane material, and the bottom plate is made of rigid polycarbonate material.

6. The mobile phone case with airbags arranged all over according to claim 1, characterized in that: The thickness of the closed air cavity is distributed differently in the back plate and the side plate areas, and each air cavity is separated by a hot-melt isolation tape.

7. The mobile phone case with airbags arranged all over according to claim 1, characterized in that: The inner surface of the side plate is provided with auxiliary buffer protrusion structures distributed at intervals.

8. The mobile phone case with airbags arranged all over according to claim 1, characterized in that: The edge of the functional opening is provided with a buffer transition zone with a gradual change in hot-melt depth.

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