A waterproof structure of mylar

CN224816999UActive Publication Date: 2026-09-29SHENZHEN SHENGXIN INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521925000.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-08
Publication Date
2026-09-29
Estimated Expiration
2035-09-08

AI Technical Summary

Technical Problem

[0002]现有的手持、佩戴的电子设备通常都要求有防水功能,如智能手表、手机、各类检测仪、对讲机、执法记录仪等,现有的防水措施多通过防水胶配合密封圈或是通过疏水涂层亦或是通过复杂的迷宫结构来实现防水,此类方式虽然具备防水功能,但是存在要么防水效果持续性不佳、要么成本高、工艺复杂等缺陷,不利于产品的发展

Benefits of technology

[0010]本实用新型的有益效果是:本申请通过麦拉片的设置,无需复杂的工艺实现,且具有较佳的抗潮湿、不易脆化耐磨损,有效的提升防水效果,使用寿命长,还能根据不同规格的电子设备,并且使用非金属材质制成,无需在按键主板上设置特殊物料,有效降低了物料成本,冲压或模切成型,生产效率高,还能简化组装程序。

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Abstract

The application discloses a waterproof structure of a Mylar, which comprises a shell and a button, wherein the button is arranged on one side of the shell and is used for starting corresponding functions, characterized in that a mounting groove is arranged on one side of the shell, a button main plate is arranged at the bottom of the mounting groove, a Mylar sheet is arranged above the button main plate, the Mylar sheet separates the button main plate in the mounting groove, a decorative sheet is arranged above the Mylar sheet, and the button is arranged in the decorative sheet.
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Description

Technical Field

[0001] This utility model relates to the field of waterproof technology for electronic devices, and in particular to a Mylar waterproof structure. Background Technology

[0002] Existing handheld and wearable electronic devices typically require waterproofing, such as smartwatches, mobile phones, various detection instruments, walkie-talkies, and law enforcement recorders. Current waterproofing measures often achieve waterproofing through waterproof adhesives combined with sealing rings, hydrophobic coatings, or complex labyrinth structures. While these methods provide waterproofing, they suffer from drawbacks such as poor durability of the waterproofing effect, high cost, and complex processes, which hinder product development.

[0003] Therefore, there is an urgent need to design a Mylar waterproof structure to solve one or more technical problems that are deficient in the existing technology. Utility Model Content

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a Mylar waterproof structure, characterized in that it includes: a shell and a button, the button being disposed on one side of the shell, the button being used to activate a corresponding function, characterized in that: a mounting groove is provided on one side of the shell, a button main board is provided at the bottom of the mounting groove, a Mylar sheet is provided above the button main board, the Mylar sheet isolating the button main board within the mounting groove, a decorative piece is provided above the Mylar sheet, and the button is disposed in the decorative piece.

[0005] In a preferred embodiment, the mounting groove is provided with a first mounting cavity, a second mounting cavity, and a third mounting cavity that decrease in size from top to bottom. The main button is disposed in the third mounting cavity, the Mylar sheet is fixedly disposed in the second mounting cavity, isolating the main button in the third mounting cavity, and the decorative piece is pasted in the first mounting cavity.

[0006] In a preferred embodiment, the bottom of the Mylar sheet is further provided with a water-collecting adhesive, and the area of ​​the water-collecting adhesive covering the button motherboard is provided with a clearance hole.

[0007] In a preferred embodiment, the button motherboard is glued and fixed in the mounting groove, the mounting groove is also provided with a positioning post, and the button motherboard is also provided with a positioning hole adapted to the positioning post.

[0008] In a preferred embodiment, the Mylar sheet is made of a non-metallic material.

[0009] In a preferred embodiment, a filling hole is also provided at the bottom of one side of the mounting groove.

[0010] The beneficial effects of this utility model are: by setting Mylar sheet, this application does not require complicated processes, and has better moisture resistance, is not easy to become brittle and wear resistant, effectively improves waterproof effect, has a long service life, can be made of non-metallic materials according to different specifications of electronic devices, and does not require setting special materials on the button motherboard, effectively reducing material costs. Stamping or die cutting form high production efficiency and can also simplify the assembly process. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the present invention; Figure 3 This is a cross-sectional view of the present invention.

[0012] In the picture: 10. Housing; 11. Button; 12. Mounting slot; 13. First mounting cavity; 14. Second mounting cavity; 15. Third mounting cavity; 16. Mylar sheet; 17. Water-absorbing adhesive; 18. Button mainboard; 19. Positioning post; 20. Positioning hole; 21. Decorative piece; 22. Filling hole. Detailed Implementation

[0013] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0014] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0015] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0016] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0017] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of the present invention include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] like Figures 1-3 As shown, this utility model provides a Mylar waterproof structure, characterized in that it includes: a housing 10 and a button 11, the button 11 is disposed on one side of the housing 10, the button 11 is used to activate a corresponding function, characterized in that: a mounting groove 12 is opened on one side of the housing 10, a button main board 18 is disposed at the bottom of the mounting groove 12, a Mylar sheet 16 is disposed above the button main board 18, the Mylar sheet 16 isolates the button main board 18 in the mounting groove 12, a decorative piece 21 is disposed above the Mylar sheet 16, and the button 11 is disposed in the decorative piece 21; Specifically, a mounting groove 12 is provided on one side of the housing 10. This mounting groove 12 has three layers from top to bottom, and the layers decrease in size from top to bottom. The top layer is the first mounting cavity 13, the middle layer is the second mounting cavity 14, and the bottom layer is the third mounting cavity 15. The button main board 18 integrates a tactile switch, which can issue different commands. The button main board 18 is fixed in the third mounting cavity 15 by adhesive backing. The Mylar sheet 16 generally refers to a sheet material that has been die-cut according to the drawing requirements or specified shape. The Mylar sheet 16 is divided into metal Mylar sheet 16 and non-metal Mylar sheet 16. The commonly used metal Mylar sheet 16 is copper foil Mylar and aluminum foil Mylar, and its main function is to conduct electricity. Non-metallic Mylar is mostly for insulation. The function of this material is to protect the surface of electronic and electrical products. Common materials include PC and PET. In this embodiment, non-metallic Mylar sheet 16 is used. It is moisture-resistant, not easily brittle, wear-resistant, and has a low cost, while still achieving the desired effect. The Mylar sheet 16 is bonded to the second mounting cavity 14 by a water-absorbing adhesive 17, which isolates the button motherboard 18 in the third mounting cavity 15, thus blocking moisture from entering the third mounting cavity 15. A decorative piece 21 is provided in the first mounting cavity 13. Multiple buttons 11 are spaced on the decorative piece 21. The buttons 11 correspond to the tactile switches on the button motherboard 18. The bottom of the decorative piece is fixedly connected to the first mounting cavity 13 by an adhesive backing.

[0019] Furthermore, although the button motherboard 18 is attached to the third mounting cavity 15 with adhesive, in order to prevent the button motherboard 18 from shifting due to pressing, multiple positioning posts 19 are provided at intervals in the third mounting cavity 15. At the same time, positioning holes 20 adapted to the positioning posts 19 are also provided on the button motherboard 18. When the button motherboard 18 is fixed in the third mounting cavity 15, the positioning posts 19 are inserted into the positioning holes 20.

[0020] Furthermore, to provide multiple waterproofing measures, a filling hole 22 is provided at the bottom of one side of the mounting groove 12. Waterproof adhesive can be filled into the mounting groove 12 from the inside of the housing 10 through the filling hole 22. The waterproof adhesive will fill the through hole of the housing, thereby achieving multiple waterproofing protection.

[0021] In summary, this application, through the setting of Mylar sheet 16, does not require complex processes and has better moisture resistance, is not easily brittle and wear-resistant, effectively improves waterproof performance, has a long service life, can be made of non-metallic materials according to different specifications of electronic devices, and does not require special materials on the button motherboard 18, effectively reducing material costs. Stamping or die-cutting molding results in high production efficiency and simplifies the assembly process.

[0022] This invention is not limited to the description in the specification and embodiments. Therefore, other advantages and modifications can be readily realized by those skilled in the art. Thus, without departing from the spirit and scope of the general concept as defined by the claims and their equivalents, this invention is not limited to the specific details, representative devices and illustrated examples shown and described herein.

Claims

1. A Mylar waterproof structure, characterized in that, include: The housing and buttons are provided. The buttons are located on one side of the housing and are used to activate corresponding functions. A mounting groove is provided on one side of the housing. A button main board is located at the bottom of the mounting groove. A Mylar plate is located above the button main board and isolates the button main board within the mounting groove. A decorative piece is located above the Mylar plate, and the buttons are located within the decorative piece.

2. The Mylar waterproof structure according to claim 1, characterized in that, The mounting groove is provided with a first mounting cavity, a second mounting cavity, and a third mounting cavity that decrease in size from top to bottom. The main button is located in the third mounting cavity, the Mylar sheet is fixedly located in the second mounting cavity, isolating the main button in the third mounting cavity, and the decorative piece is pasted in the first mounting cavity.

3. The Mylar waterproof structure according to claim 1, characterized in that, The bottom of the Mylar sheet is also provided with a water-collecting adhesive, and the area of ​​the water-collecting adhesive covering the mainboard of the button is provided with a clearance hole.

4. The Mylar waterproof structure according to claim 1, characterized in that, The button motherboard is glued and fixed in the mounting slot. The mounting slot is also provided with a positioning post, and the button motherboard is also provided with a positioning hole that matches the positioning post.

5. The Mylar waterproof structure according to claim 1, characterized in that, The Mylar sheet is made of non-metallic material.

6. The Mylar waterproof structure according to claim 1, characterized in that, A filling hole is also provided at the bottom of one side of the mounting groove.