Earphone box protective film

By designing a split headphone box protective film, the problem of the existing headphone box protective cover being complicated and bulky is solved, and a simple, lightweight and effective protection effect is achieved, meeting consumers' protection needs for headphone boxes.

CN223329226UActive Publication Date: 2025-09-12GUANGZHOU LEHMAN BROS ELECTRONICS TECH CO LTD
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Patent Information

Application Number
CN202422509270.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-16
Publication Date
2025-09-12
Estimated Expiration
2034-10-16

AI Technical Summary

Technical Problem

Existing headphone box protective covers are too complicated or bulky, affecting portability and ease of use, and cannot meet consumers' needs for simple, lightweight and effective protection.

Method used

A split headphone box protective film is designed, including an upper film body and a lower film body, which respectively wrap the upper and lower parts of the headphone box. It is made of TPU material and is provided with a positioning part and a release film unit to ensure precise positioning and simple installation.

Benefits of technology

It achieves comprehensive protection for the earphone box, simplifies the structure and visual design, reduces material waste, improves fit and installation convenience, and meets consumers' needs for practical and simple use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an earphone box protective film, which belongs to the technical field of protective films and comprises a film body attached to the surface of an earphone box, a release film is covered on the adhesive surface side of the film body, the film body comprises an upper film body and a lower film body, the upper film body is used for wrapping the upper part of the earphone box, and the lower film body is used for wrapping the lower part of the earphone box. The earphone box protective sleeve disclosed by the utility model can solve the protection problem of the earphone box protective sleeve.
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Description

Technical Field

[0001] The utility model relates to the technical field of protective films, in particular to a protective film for an earphone box. Background Art

[0002] Earphone case cases, designed specifically to protect the charging case of true wireless earphones, have become a must-have accessory for consumers in recent years, driven by the widespread adoption of Bluetooth earphones. These cases are typically made of soft yet durable materials like TPU, TPU, or nylon fabric, designed to protect the earphone cases from scratches during daily use and portability. Beyond providing physical protection, some cases also incorporate stylish elements like colorful colors, graphic designs, or brand logos, satisfying consumers' pursuit of personalization and aesthetics.

[0003] However, despite significant advancements in protection and personalization, protective cases for headphone cases face a design challenge: some consumers report that existing cases are often too complex or bulky, failing to meet their demand for simplicity. To achieve more comprehensive protection, some cases incorporate additional layers or accessories, which not only adds weight but also compromises the original portability and ease of use. For those who frequently carry their headphone cases in pockets, backpacks, or handbags, a simple, lightweight case that effectively protects them is particularly important. Utility Model Content

[0004] In order to overcome the defects of the prior art, the utility model provides an earphone box protective film, which can solve the protection problem of the earphone box protective cover.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] The utility model provides a headphone box protective film, including a film body attached to the surface of the headphone box, the adhesive surface side of the film body is covered with a release film, the film body includes an upper film body and a lower film body, the upper film body is used to wrap the upper part of the headphone box, and the lower film body is used to wrap the lower part of the headphone box.

[0007] The preferred technical solution of the present invention is that the upper membrane body includes an upper middle part and several upper left parts and several upper right parts connected to both sides of the upper middle part, and the lower membrane body includes a lower middle part and several lower left parts and several lower right parts connected to both sides of the lower middle part.

[0008] The preferred technical solution of the present invention is that three are respectively provided on the upper left part and the upper right part, and three are respectively provided on the lower left part and the lower right part.

[0009] An optimal technical solution of the present invention is that a positioning portion is provided on the membrane body.

[0010] An optimal technical solution of the present invention is that the size and shape of the positioning portion are adapted to the size and shape of the charging port of the earphone box to which it is attached.

[0011] An optimal technical solution of the present invention is that the release film is divided into independent release film units according to the upper middle part, the upper left part, the upper right part, the lower middle part, the lower left part and the lower right part.

[0012] A preferred technical solution of the present invention is that the separation width between any two parts of the release film unit is 0.05-0.10 mm.

[0013] The preferred technical solution of the present invention is that a protective layer membrane is provided above the membrane body.

[0014] The preferred technical solution of the present invention is that the thickness of the membrane body is 0.15-0.30 mm.

[0015] The preferred technical solution of the present invention is that the material of the membrane body is TPU.

[0016] Beneficial effects of the utility model:

[0017] This utility model proposes a protective film for an earphone case. The film's main body is cleverly divided into an upper and lower portion. The upper portion is specifically designed to tightly wrap the upper portion of the case, while the lower portion focuses on covering the lower portion. This split design not only ensures a fully fitted protective film but also reduces unnecessary material waste through precise positioning, further enhancing the product's aesthetic simplicity. This design fundamentally eliminates the complex protective effects of traditional protective covers, achieving minimalist design and visual simplicity, satisfying consumer demand for a practical and simple headphone case protective product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a front view of a protective film for an earphone box according to the present invention;

[0020] Figure 2 This is a rear view of a protective film for an earphone box according to the present invention;

[0021] Figure 3 This is a film structure diagram of a headphone box protective film of the utility model;

[0022] Figure 4 This is a schematic diagram of an earphone box after being wrapped with an earphone box protective film according to the present invention.

[0023] In the picture:

[0024] 1-film body; 2-release film; 21-release film unit; 3-upper film body; 31-upper left part; 32-upper middle part; 33-upper right part; 4-lower film body; 41-lower left part; 42-lower middle part; 43-lower right part; 5-positioning part; 6-protective layer film. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0026] like Figure 1-4 As shown, a headphone box protective film is provided in this embodiment, wherein Figure 1 The protective layer film display is omitted. The earphone box protective film of this embodiment is designed based on the current AirPods2 earphone box, including a film body 1 attached to the surface of the earphone box, and the adhesive side of the film body 1 is covered with a release film 2. The film body 1 includes an upper film body 3 and a lower film body 4. The upper film body 3 is used to wrap the upper part of the earphone box, and the lower film body 4 is used to wrap the lower part of the earphone box. The protective film is composed of a film body directly attached to the surface of the earphone box. This design fundamentally abandons the complex protection of the final earphone box product by traditional protective covers, and achieves structural and visual simplification. What is even more unique is that the film body is cleverly divided into an upper film body and a lower film body. The upper film body is specially designed to tightly wrap the upper part of the earphone box, while the lower film body focuses on covering the lower part of the earphone box. This split design not only ensures the comprehensive fit of the protective film, but also reduces unnecessary material waste through precise positioning, further enhancing the simple beauty of the product. This innovative split-body design not only fully protects the earphone case but also significantly simplifies the overall construction of the protective case, satisfying consumers' dual expectations for practicality and simplicity. The adhesive side of the membrane is meticulously covered with a release film, which protects the adhesive layer from contamination during storage and transport while allowing for easy removal when needed, enhancing ease of use.

[0027] Preferably, the upper membrane body 3 includes an upper middle portion 32 and several upper left portions 31 and several upper right portions 33 connected to both sides of the upper middle portion 32, and the lower membrane body 4 includes a lower middle portion 42 and several lower left portions 41 and several lower right portions 43 connected to both sides of the lower middle portion 42. This split design not only enhances the flexibility and adaptability of the protective film, enabling it to fit more tightly and evenly on the various curved surfaces of the earphone box, but also significantly improves the wrapping and protective properties of the protective film. When the wrapping is completed, the edge areas of the adjacent parts of the upper and lower membrane bodies can fit well together to form a visually continuous whole. Through fine partitioning, each part can accurately cover and protect a specific area of ​​the earphone box, effectively avoiding problems such as warping, falling off, or loose fitting that may occur with traditional protective films. Furthermore, three upper left portions 31 and upper right portions 33 are each provided, and three lower left portions 41 and lower right portions 43 are each provided. This quantitative design is well thought out. This ensures complete coverage of the protective film on the earphone case while avoiding the installation complexity and material waste associated with excessive components. This selection of components meets protection requirements while maintaining product simplicity and affordability. Furthermore, this design makes it easier to align and position the protective film during installation, significantly improving installation accuracy and convenience.

[0028] Preferably, a positioning portion 5 is provided on the membrane body 1. The presence of the positioning portion enables the user to easily find the correct fitting position when installing the protective film, avoiding the problem of loose fitting or damage to the protective film due to misalignment. This design not only simplifies the installation process and reduces the difficulty of operation, but also improves the installation efficiency and accuracy. Furthermore, the size and shape of the positioning portion 5 are adapted to the size and shape of the charging port of the attached earphone box. As one of the most conspicuous and functional components on the earphone box, the position and shape of the charging port are usually unique and iconic. By designing the positioning portion to match the shape and size of the charging port, the user only needs to simply align the positioning portion with the charging port to quickly and accurately complete the fitting of the protective film. This design not only improves the convenience of installation, but also enhances the fit between the protective film and the earphone box, so that the protective film can protect the earphone box while not affecting the normal use of the charging port.

[0029] Preferably, the release film 2 is divided into independent release film units 21 according to the upper middle part 32, the upper left part 31, the upper right part 33, the lower middle part 42, the lower left part 41, and the lower right part 43. By dividing the release film into multiple independent units, the user can more easily and accurately control the timing and strength of tearing off each part when tearing off the release film, thereby avoiding the problem of misalignment or damage of the protective film caused by tearing off too much release film at one time. This design not only improves the fineness of the film, but also makes the protective film more flexible and controllable during the film application process, further improving the user's film application experience and satisfaction. Furthermore, several independent release film units 21 can be divided according to the upper middle part and the lower middle part to facilitate better film application.

[0030] To reduce dust adhesion, the width between any two sections of the release film unit 21 is preferably 0.05-0.10mm. This ensures the independence of each section, facilitating on-demand removal, while also preventing deformation or damage to the protective film during transportation or storage due to excessively wide sections. Furthermore, this width range ensures sufficient stability and accuracy during installation, reducing fitting issues caused by improperly sectioned release film.

[0031] Preferably, a protective layer film 6 is provided above the membrane body 1. The presence of the protective layer film provides an additional protective barrier for the membrane body, effectively preventing the membrane body from being scratched, worn or contaminated during transportation, storage or installation. This design not only extends the service life of the protective film, but also ensures that the protective film can maintain the best fit and protective effect when installed on the earphone box. At the same time, the easy tearing of the protective layer film also ensures that the user can easily remove it during the installation process without affecting the normal use of the protective film. Preferably, the thickness of the protective layer film 6 is 0.1 mm.

[0032] Preferably, the thickness of the membrane body 1 is 0.15-0.30 mm. This thickness range ensures the protective film's flexibility and conformability, allowing it to tightly wrap around the curved surfaces of the earphone case, while also ensuring sufficient strength and durability to withstand the friction and impact of daily use. Furthermore, this thickness range makes the protective film easier to handle and control during installation, reducing installation difficulty and cost.

[0033] Preferably, the material of the membrane body 1 is TPU. TPU (thermoplastic polyurethane) has excellent elasticity, abrasion resistance, tear strength, and weather resistance, making it ideal for making headphone box protective films. This material not only maintains stable protective performance during long-term use, but also adapts to various complex environmental conditions such as high and low temperatures and humidity. Furthermore, TPU has excellent transparency and glossiness, allowing the protective film to take on the appearance of the headphone box when installed, which is suitable for simple use.

[0034] The method of applying the protective film for the earphone box of this embodiment is as follows:

[0035] The structure of the earphone box protective film corresponds one-to-one to the corresponding earphone box product. The user aligns the positioning part on the film body with the charging port of the earphone box, and tears off the corresponding release film unit in the release film so that the corresponding part on the film body is exposed and attached to the corresponding charging port position of the earphone box. After the initial positioning, tear off the release film unit located in the lower middle part of the lower film body of the release film so that the corresponding part of the lower film body is gradually exposed and attached to the corresponding position of the earphone box. After the lower middle part is attached, similarly, tear off the release film unit located in the lower left part of the lower film body of the release film and gradually expose the lower left part and attach it to the corresponding position of the earphone box. The pasting method of the lower right part of the lower film body is the same as that of the lower left part. According to the above method, stick the upper film body to the upper part of the earphone box. Finally, after sticking the entire film body, tear off the protective layer film on the surface, and the protective film of the earphone box is completed. The earphone box protective film attached by the above operation is accurately positioned, beautiful, and free of bubbles.

[0036] The present invention is described through preferred embodiments. Those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application are also within the scope of protection of the present invention.

Claims

1. A protective film for an earphone box, characterized by: It comprises a membrane body (1) attached to the surface of an earphone box, wherein the adhesive surface side of the membrane body (1) is covered with a release film (2); The membrane body (1) comprises an upper membrane body (3) and a lower membrane body (4), wherein the upper membrane body (3) is used to wrap the upper part of the earphone box, and the lower membrane body (4) is used to wrap the lower part of the earphone box.

2. The earphone box protective film according to claim 1, characterized in that: The upper membrane body (3) includes an upper middle portion (32) and a plurality of upper left portions (31) and a plurality of upper right portions (33) connected to both sides of the upper middle portion (32); The lower membrane body (4) comprises a lower middle portion (42) and a plurality of lower left portions (41) and a plurality of lower right portions (43) connected to both sides of the lower middle portion (42).

3. The earphone box protective film according to claim 2, characterized in that: The upper left portion (31) and the upper right portion (33) are each provided in three pieces, and the lower left portion (41) and the lower right portion (43) are each provided in three pieces.

4. The earphone box protective film according to claim 1, characterized in that: A positioning portion (5) is provided on the membrane body (1).

5. The earphone box protective film according to claim 4, characterized in that: The size and shape of the positioning portion (5) are adapted to the size and shape of the charging port of the earphone box to which it is attached.

6. The earphone box protective film according to claim 2, characterized in that: The release film (2) is divided into independent release film units (21) according to the upper middle part (32), upper left part (31), upper right part (33), lower middle part (42), lower left part (41), and lower right part (43).

7. The earphone box protective film according to claim 6, characterized in that: The separation width between any two parts of the release film unit (21) is 0.05-0.10 mm.

8. The earphone box protective film according to claim 1, characterized in that: A protective layer membrane (6) is provided above the membrane body (1).

9. The earphone box protective film according to claim 1, characterized in that: The thickness of the membrane body (1) is 0.15-0.30 mm.

10. The earphone box protective film according to claim 1, characterized in that: The material of the membrane body (1) is TPU.