Screwless Housing Assembly with Spring-Loaded Engaging Member
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Solution Overview
Problem
Conventional housing assemblies for portable electronic devices require time-consuming screw assembly and disassembly, and lack consistent tightening force, while existing alternatives are overly complex.
Innovation Solution
A housing assembly design featuring a first body with a first side and a second side, where a first engaging member with engaging portions is moved by a resilient member to securely connect with corresponding holes and release holes on a second body, allowing for simple and secure assembly and disassembly without screws.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If screws are used to assemble the housing assembly, then the connection strength is improved, but the assembly time and disassembly time increase
Solution Approach 1:
The engaging member is designed to be movable rather than fixed, allowing it to dynamically transition between engaged and disengaged states. The resilient member enables the engaging member to automatically move into the engaged position with the contact portion, eliminating the need for manual screw tightening while maintaining connection strength.
Solution Approach 2:
The resilient member provides self-service by automatically pushing the engaging member into the engaged position with the contact portion. This self-actuating mechanism eliminates the need for external tools or manual intervention to achieve secure connection, thereby reducing assembly time while maintaining connection strength.
2Strength
If screws are used to assemble the housing assembly, then the connection strength is improved, but the tightening force consistency deteriorates
Solution Approach 1:
The resilient member automatically pushes the engaging member into the engaged position with the contact portion, creating a self-regulating mechanism that ensures consistent engagement force. This eliminates the variability associated with manual or automated screw tightening, achieving both connection strength and tightening force consistency.
Solution Approach 2:
The resilient member transforms the engagement from a static screw-based system to a dynamic spring-based system. The elastic properties of the resilient member provide a consistent restoring force that ensures uniform engagement across all assembling operations, improving manufacturing precision while maintaining connection strength.
3Device complexity
If a screwless housing assembly design is used, then the assembly complexity is reduced, but the connection reliability may deteriorate
Solution Approach 1:
The engaging member features a curved engagement surface that works with the contact portion to create a reliable mechanical interlock. The curved geometry provides progressive engagement and maintains consistent contact pressure, ensuring connection reliability while keeping the overall assembly simple and screwless.
Solution Approach 2:
The engaging member integrates multiple functions: it provides mechanical engagement through the contact portion, maintains engagement force through the resilient member, and enables disassembly through the release hole. This merging of functions into a single component achieves both reduced complexity and maintained reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables rapid and consistent assembly and disassembly of the housing assembly, ensuring secure connections without the complexity of screw-based systems.
Implementation Method 1
A first resilient member provides a force to the first engaging member to orient the first engaging member toward the first release hole of the second body
Data Source
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AI summary
A housing assembly for a portable electronic device includes a first body (18), a second body (20), a first engaging member (42), a first resilient member (44) and a first housing (14). The first body (18) has a first space (32a). The second body (20) is installed to the first body (18) and has a first release hole (30a) and at least one first hole (38). The first engaging member (42) is movably located in the first space (32a) of the first body (18) and corresponding to the release hole (30a). The first engaging member (42) has at least one first engaging portion (46, 200, 300) corresponding to the first hole (38). The first resilient member (44) provides a force to the first engaging member (42) to orient the first engaging member (42) toward the first release hole (30a) of the second body (20). The first housing (14) is connected to the second body (20) and has at least one first contact portion (68) corresponding to the first engaging portion (46, 200, 300) of the first engaging member (42). When assembling, the first contact portion (68) of the first housing (14) contacts the first engaging portion (46, 200, 300) of the first engaging member (42). The force of the first resilient member (44) applied to the first engaging member (42) to firmly connect the first housing (14) to the second body (20).