Earphone shell protective sleeve
By combining a hard base shell, an inner soft rubber shell, and an outer soft rubber shell, the design solves the shortcomings of traditional headphone shells in terms of comfort, aesthetics, and personalization, achieving solid protection, aesthetics, and durability, while ensuring the normal operation of the infrared lights.
Patent Information
- Application Number
- CN202423102787.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Traditional headphone cases offer protection but struggle to balance comfort, aesthetics, and personalization. Hard materials are prone to scratches, while soft materials often lack contrasting colors and patterns.
The design employs a combination of a rigid base shell, an inner soft rubber shell, and an outer soft rubber shell. These shells are attached to the rigid base shell using a two-color injection molding technique, creating color differences and forming a tight wrap around the edges. The inner soft rubber shell is equipped with a window to allow infrared light to pass through, while the outer soft rubber shell is an infrared-transmitting component.
Provides robust protection, enhances comfort and aesthetics, prevents edge scratches, increases durability, and ensures proper functioning of the infrared lights.
Smart Images

Figure CN223515033U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a protective cover for an earphone shell. Background Technology
[0002] Traditional headphone case designs primarily focus on providing basic protection and a certain level of durability. These cases are typically made of a single hard or soft material, designed to prevent scratches, impacts, and other external damage to the headphone shell. However, as consumers increasingly demand product personalization, aesthetics, and comfort, traditional case designs are gradually becoming insufficient to meet the diverse needs of the market.
[0003] Specifically, in the existing technology, headphone shell protective cases may use hard plastic as the outer shell to provide the necessary strength and protection. While hard plastic protective cases perform well in protecting headphone shells from external impacts, they often lack sufficient comfort and feel, which may cause inconvenience to users during prolonged carrying or use.
[0004] To improve this situation, some manufacturers have begun to experiment with adding a layer of soft material, such as silicone or foam, inside hard cases to increase the softness and feel of the protective cases. This design improves user comfort to some extent, but it still has some limitations. For example, the color and pattern of the soft material layer often match the hard case, making it difficult to create a striking visual contrast or personalized color scheme. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an earphone shell protective cover.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0007] An earphone shell protective cover, having an internal cavity for accommodating the earphone shell; comprising:
[0008] Hard base shell;
[0009] An inner soft rubber shell attached to the inner side of the rigid base shell; and
[0010] An outer soft rubber shell attached to the outside of the rigid base shell;
[0011] The inner and outer soft rubber shells are attached to the rigid base shell by two-color injection molding to create a color difference between the inner and outer sides of the protective sleeve.
[0012] Furthermore, the inner soft rubber shell is attached to the rigid base shell before the outer soft rubber shell.
[0013] Furthermore, the rigid base shell has a first edge for forming a first opening, and the inner soft shell and the outer soft shell together form a first covering area capable of covering the first edge.
[0014] Furthermore, the inner soft shell has an inner edging extending along the outer side of the end edge, and the outer soft shell is configured to extend upward and engage with the inner edging to form the first covered area.
[0015] Furthermore, the rigid base shell has a second edge for forming a second opening, the second edge having an inwardly extending flange, and both the inner and outer soft rubber shells are attached to the flange.
[0016] Furthermore, the flange is configured to be flush with the thickness of the inner soft rubber shell.
[0017] Furthermore, the rigid base shell has a first flange extending inward along the second edge, and the outer soft shell has a second flange extending inward along the second edge, the first flange and the second flange forming the flange portion.
[0018] Furthermore, the first flange is attached to the second flange.
[0019] Furthermore, the inner soft rubber shell is provided with a clearance window corresponding to the position of the infrared lamp, the outer soft rubber shell is configured as an infrared-transmitting component, and the inner soft rubber shell is configured as a light-shielding component.
[0020] Furthermore, the protective case includes a protective case body and a protective case cover.
[0021] Due to the adoption of the above technical solutions, this utility model has the following beneficial effects:
[0022] 1. The rigid base shell of this utility model serves as the main structure of the protective case, providing a robust protective barrier that effectively resists external impacts and scratches, ensuring the earphone shell remains undamaged. Simultaneously, the inner soft rubber shell adheres tightly to the earphone shell surface, further cushioning external pressure and preventing scratches or dents caused by direct contact with hard objects. Furthermore, this utility model utilizes dual-color injection molding technology, allowing the inner and outer soft rubber shells to be selected in different colors and materials, thus creating a striking color difference and a personalized visual effect on the inner and outer sides of the protective case. This design not only satisfies consumers' pursuit of product aesthetics but also provides a wealth of customization options, making the protective case a unique accessory showcasing personal taste and style.
[0023] 2. The hard inner soft rubber shell and the outer soft rubber shell of this utility model together form a covering area that can cover the edge of the hard base shell, effectively preventing the edge of the hard base shell from being exposed and scratched, and improving the overall structural stability and durability of the protective case. In particular, through the inner edge of the inner soft rubber shell and the upward extension structure of the outer soft rubber shell, a tight covering of the edge of the hard base shell is achieved, further enhancing the protective effect.
[0024] 3. The inner soft rubber shell of the protective case is equipped with a clearance window corresponding to the position of the infrared lamp, while the outer soft rubber shell is configured to be infrared-transparent. This design allows the protective case to maintain its overall integrity and aesthetics without affecting the normal operation of the infrared lamp. The inner soft rubber shell, acting as a light-shielding component, effectively prevents external light from interfering with the infrared lamp, improving its working efficiency and accuracy. Attached Figure Description
[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.
[0026] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0027] Figure 2 This is the first exploded view of the structure of this utility model.
[0028] Figure 3 This is the exploded view of the second structure of this utility model.
[0029] Figure 4 This is the first three-dimensional cross-sectional view of the present invention.
[0030] Figure 5 This is a second three-dimensional cross-sectional view of the present invention.
[0031] Figure 6 This is a planar cross-sectional view of the present invention.
[0032] Figure 7 yes Figure 6 Enlarged view of the structure of section A in the middle.
[0033] Figure 8 yes Figure 6 Enlarged view of the structure of section B in the middle.
[0034] Figure label:
[0035] In the diagram, 1. Hard base shell; 11. Protective case body; 12. Protective case cover; 13. First edge; 14. Second edge; 2. Inner soft rubber shell; 21. Clearance window; 3. Outer soft rubber shell; 4. Earphone shell; 41. Charging light; 5. First opening; 6. Second opening; 7. Flanged edge; 71. First folded edge; 72. Second folded edge; 8. First covered area; 81. Inner edge. Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0038] Unless otherwise defined, the technical or scientific terms used in this patent document shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model patent specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" indicate that the element or object preceding "comprising" encompasses the element or object listed following "comprising" or its equivalents, and do not exclude other elements or objects. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0040] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.
[0041] Please see Figures 1-4 This invention discloses an earphone shell protective cover, which has an internal cavity for accommodating an earphone shell 4. The earphone shell protective cover includes: a rigid base shell 1, an inner soft rubber shell 2, and an outer soft rubber shell 3. The inner soft rubber shell 2 is attached to the inner side of the rigid base shell 1, and the outer soft rubber shell 3 is attached to the outer side of the rigid base shell 1. The protective cover in this embodiment also includes two parts: a protective cover body 11 and a protective cover cover 12. The protective cover body 11 is used to accommodate the main body of the earphone shell, while the protective cover cover 12 is used to cover the opening of the earphone shell. The protective cover body 11 and the protective cover cover 12 are connected together by snaps or magnetic attraction, making it convenient for users to open and close the protective cover. The protective cover body 11 and the protective cover cover 12 have the same structure. The protective cover includes two modules: a protective cover body and a protective cover cover. This modular design allows users to easily disassemble and replace a part of the protective cover when needed, reducing maintenance costs and ease of use. In other embodiments, the earphone shell protective cover can also be a one-piece design, having an integrated shell body or shell cover. The present invention will now be described in detail with reference to its general structure.
[0042] The inner soft rubber shell 2 and the outer soft rubber shell 3 are attached to the rigid base shell 1 using a two-color injection molding process to create a color difference between the inner and outer sides of the protective sleeve. Furthermore, to facilitate injection molding, the inner soft rubber shell 2 is attached to the rigid base shell 1 before the outer soft rubber shell 3. During manufacturing, the inner soft rubber shell 2 is first injection molded onto the inner side of the rigid base shell 1, and then the outer soft rubber shell 3 is injection molded onto the outer side. This sequence ensures that the inner soft rubber shell 2 fits tightly against the rigid base shell 1, while the outer soft rubber shell 3 evenly covers the outer side of the rigid base shell 1.
[0043] The rigid base shell 1, serving as the main structure of the protective case, can be made of high-strength, wear-resistant materials, such as ABS or PC plastic, to ensure sufficient strength and durability. The inner soft shell 2, attached to the inside of the rigid base shell 1, can be made of a soft and elastic material, such as silicone or TPU, to provide cushioning and shock absorption, protecting the earphone shell from external impacts. The shape and size of the inner soft shell 2 match the inner cavity of the rigid base shell 1, ensuring the earphone shell can be securely placed inside the protective case. The outer soft shell 3, attached to the outside of the rigid base shell 1, is also made of a soft and elastic material.
[0044] It is important to note that in patent descriptions, color differences typically involve specific details such as the type of color, color transition methods (e.g., gradients, abrupt changes), and color distribution. The color difference described in this invention refers to a clear distinction in color between different parts of the product. The outer soft shell 3 and the inner soft shell 2 are attached to the rigid base shell 1 using a two-color injection molding process, creating a color difference that makes the protective case more visually appealing. Two-color injection molding technology allows for the simultaneous injection of two different colors of material in a single injection process, thus completing the manufacturing of the inner and outer soft shells 3 in a single molding step. This invention describes this difference through specific color parameters; this difference is an intentionally designed effect used to enhance the product's aesthetics, functionality, or recognizability. The color difference in this invention creates a significant visual difference, which is the perceived difference in the product's appearance from the observer's perspective. This difference stems from variations in the elements of color.
[0045] Please see Figures 5-8The rigid base shell 1 has a first edge 13 for forming a first opening 5. The inner soft shell 2 and the outer soft shell 3 together form a first covering area 8 that covers the first edge 13. The inner soft shell 2 has an inner rim 81 extending along the outer side of its end edge, and the outer soft shell 3 extends upward and combines with the inner rim 81 to form a tight covering structure. This design not only enhances the edge strength of the protective case but also improves its aesthetics. In this embodiment, the first opening 5 is disposed at the top of the protective case body 11 or at the bottom of the protective case cover 12, and the first edge 13 is the edge portion of the top of the protective case body 11 or the bottom of the protective case cover 12. In other embodiments, the outer soft shell 3 may have an outer rim extending along the inner side of its end edge, and the inner soft shell 2 is configured to extend upward and combine with the outer rim to form the first covering area. Further, in this embodiment, the rigid base shell 1 has a second edge 14 for forming the second opening 6. The second edge 14 has an inwardly extending flange 7, to which both the inner soft shell 2 and the outer soft shell 3 are attached. The second opening 6 is located at the bottom of the protective case. It should be noted that in this embodiment, the second opening is a USB port, which may also be located on the side of the protective case / shell in other embodiments. The second edge 14 is the edge portion of the protective case or cover located at the second opening. The flange 7 is configured to be flush with the thickness of the inner soft shell 2. In this embodiment, the rigid base shell 1 has a first flange 71 extending inward along the second edge 14, and the outer soft shell 3 has a second flange 72 extending inward along the second edge 14. The first flange and the second flange form the flange 7. In other embodiments, the rigid base shell 1 may have a first flange extending outward along the second edge, and the inner soft shell 2 may have a second flange extending outward along the second edge. The first flange and the second flange form the flange portion, and the flange portion is configured to be flush with the thickness of the outer soft shell 3. Further details are omitted here.
[0046] Since most earphone shells have a charging indicator, a charging light 41 is provided on the earphone shell to indicate the charging status. This embodiment further incorporates infrared avoidance and light transmission design. An avoidance window 21 corresponding to the position of the infrared lamp is provided on the inner soft shell 2 to allow the infrared light to penetrate the protective shell. Furthermore, to increase light transmission, the outer soft shell 3 can be an infrared-transmitting element, allowing the infrared light to pass through and illuminate external objects. Simultaneously, the inner soft shell 2 acts as a light-shielding element, preventing external light from interfering with the normal operation of the infrared lamp.
[0047] In the manufacturing process, a rigid base shell 1 is first manufactured, followed by injection molding of the inner soft rubber shell 2 and the outer soft rubber shell 3. During injection molding, it is necessary to ensure that the inner soft rubber shell 2 and the outer soft rubber shell 3 are tightly bonded to the rigid base shell 1, while maintaining their respective shape and dimensional stability. Finally, the protective case body and the protective case cover are assembled together to complete the entire manufacturing process of the protective case.
[0048] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A headphone shell protective cover, wherein an internal cavity is formed for accommodating the headphone shell; characterized in that, include: Hard base shell; An inner soft rubber shell attached to the inside of the rigid base shell; as well as An outer soft rubber shell attached to the outside of the rigid base shell; The inner and outer soft rubber shells are attached to the rigid base shell by two-color injection molding to create a color difference between the inner and outer sides of the protective sleeve.
2. The headphone shell protective cover according to claim 1, characterized in that, The inner soft rubber shell is attached to the hard base shell before the outer soft rubber shell.
3. The headphone shell protective cover according to claim 1, characterized in that, The rigid base shell has a first edge for forming a first opening, and the inner soft shell and the outer soft shell together form a first covering area that can cover the first edge.
4. The earphone shell protective cover according to claim 3, characterized in that, The inner soft shell has an inner edging extending along the outer side of the first edge, and the outer soft shell is configured to extend upward and combine with the inner edging to form the first covered area.
5. The headphone shell protective cover according to claim 3 or 4, characterized in that, The rigid base shell has a second edge for forming a second opening, the second edge having an inwardly extending flange, and both the inner and outer soft rubber shells are attached to the flange.
6. The earphone shell protective cover according to claim 5, characterized in that, The flange is configured to be flush with the thickness of the inner soft rubber shell.
7. The headphone shell protective cover according to claim 5, characterized in that, The rigid base shell has a first flange extending inward along the second edge, and the outer soft shell has a second flange extending inward along the second edge, the first flange and the second flange forming the flange portion.
8. The earphone shell protective cover according to claim 7, characterized in that, The first flange is attached to the second flange.
9. The headphone shell protective cover according to claim 1, characterized in that, The inner soft rubber shell is provided with a clearance window corresponding to the position of the infrared lamp, the outer soft rubber shell is configured as an infrared-transmitting component, and the inner soft rubber shell is configured as a light-shielding component.
10. The earphone shell protective cover according to claim 1, characterized in that, The protective case includes a protective case body and a protective case cover.