Camera Battery Cover Structure for Sealing Without Decoration Rings
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Solution Overview
Problem
Conventional PU battery covers in electronic devices suffer from poor sealing performance, high cost, and a high risk of failure due to degumming when subjected to external forces, necessitating additional decoration rings that increase costs.
Innovation Solution
The battery cover is designed with a stacked structure of a polyurethane first cover layer and a glass fiber second cover layer, where the camera assembly's decoration member is divided into outer and inner portions adhered to the second cover layer, enhancing adhesion stability and eliminating the need for decoration rings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional PU battery cover assembly manner is used, then the appearance and hand feeling are good, but the sealing performance is poor and the cost is high
Solution Approach 1:
The battery cover adopts a composite structure with a glass fiber layer and a polyurethane layer. The glass fiber layer provides structural strength and sealing performance, while the polyurethane layer provides appearance quality and hand feeling. This composite material approach resolves the contradiction by combining materials with complementary properties to achieve both good sealing and cost-effectiveness.
Solution Approach 2:
The decoration member is divided into a first decoration portion and a second decoration portion, with the second portion extending into a mounting hole to form a connecting portion. This segmentation allows the decoration member to serve multiple functions: decoration, sealing, and structural connection, thereby improving sealing performance without requiring additional sealing components that would increase cost.
2Reliability
If a traditional PU battery cover is used, then the appearance is excellent, but the battery cover is prone to degumming when subjected to external force
Solution Approach 1:
The glass fiber layer provides structural strength and rigidity to resist external forces, while the polyurethane layer maintains appearance quality. The combination creates a composite structure where each layer compensates for the other's weaknesses, preventing degumming under external force while preserving aesthetic properties.
Solution Approach 2:
The decoration member is segmented into multiple portions, with the second decoration portion forming a connecting portion that extends into the mounting hole. This creates additional adhesion areas and structural support points, distributing stress and improving adhesion stability when external forces are applied.
3Reliability
If additional decoration rings are added to prevent degumming, then the adhesion stability improves, but the cost increases
Solution Approach 1:
The second decoration portion of the decoration member serves multiple functions: it provides structural support, creates adhesion areas, prevents degumming, and eliminates the need for separate decoration rings. This multi-functionality achieves adhesion stability without requiring additional components, thereby avoiding increased manufacturing costs.
Solution Approach 2:
The functional requirements of decoration, sealing, and structural support are merged into a single integrated decoration member structure. The connecting portion formed by the second decoration portion combines sealing and strengthening functions, eliminating the need for separate decoration rings and reducing overall component count and cost.
Data Source
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AI summary
This application discloses an electronic device. The electronic device includes a battery cover and a camera assembly. Amounting hole is arranged on the battery cover, and the camera assembly is mounted in the mounting hole. The battery cover includes a first cover layer and a second cover layer that are arranged in a stacked manner, and the first cover layer is located on an outer side of the second cover layer, where the first cover layer is made of a polyurethane material, and the second cover layer is made of a glass fiber material. The camera assembly includes a decoration member, the decoration member includes a first decoration portion and a second decoration portion, the first decoration portion is located on an outer side of the battery cover and is adhered to the second cover layer, and the second decoration portion is located on an inner side of the battery cover and is adhered to the second cover layer, where the first decoration portion partially covers the first cover layer. In this application, the first decoration portion and the second decoration portion are adhered to an inner side and an outer side of the second cover layer respectively, thereby improving connection sealing performance and adhesive waterproof performance of the battery cover and the decoration member. In addition, because the first decoration portion partially covers the first cover layer, there is no need to use a decoration ring, thereby reducing a cost.