Removable Battery Latch Assembly With Low-Antenna Interference
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Solution Overview
Problem
Existing latch assemblies for portable communication devices require significant space and cannot be easily removed or replaced without interfering with antenna components, posing challenges for installation and maintenance.
Innovation Solution
A latch assembly with a latch holder, latch catch, latch spring, latch button, and latch pins that allow for easy installation and removal without interfering with antenna components, utilizing a mechanism that includes a latch pin for retaining and disengaging the assembly within the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If traditional latch assemblies are used to latch a battery to a portable communication device, then the battery can be securely retained, but the latch assembly requires significant space that could otherwise be used for the battery itself
Solution Approach 1:
The latch assembly is divided into separate functional components: a latch holder with rails, a latch catch with interface protrusions, and a latch button. This segmentation allows each component to be optimized independently and enables the overall assembly to be more space-efficient while maintaining secure battery retention functionality
Solution Approach 2:
The latch catch is configured to slide within the latch holder along defined rails, with the latch catch nested within the latch holder structure. This nesting arrangement minimizes the overall volume required for the latch assembly while ensuring secure battery retention through the interlocking protrusion-recess mechanism
2Reliability
If metal components are placed on the latch assembly, then the battery can be securely latched, but the metal components interfere with antenna components of the portable communication device
Solution Approach 1:
The latch assembly uses non-metallic materials (such as plastic or polymer) for the latch holder, latch catch, and latch button components. This local material selection eliminates electromagnetic interference with antenna components while maintaining sufficient mechanical strength and reliability for secure battery retention through the engineered interlocking mechanism
3Reliability
If the latch assembly is permanently installed on the portable communication device, then the battery can be securely retained, but the latch assembly cannot be easily removed or replaced for maintenance and repair
Solution Approach 1:
The latch assembly incorporates a latch button that can be actuated to dynamically change the state of the latch mechanism from locked to unlocked. The latch catch slides along rails defined by the latch holder, allowing the battery to be easily removed or the latch assembly to be replaced without permanent installation, while maintaining secure retention when engaged
4Reliability
If the latch assembly requires significant space, then the latch mechanism can be robust and reliable, but the space available for the battery is reduced
Solution Approach 1:
The latch mechanism utilizes the thickness dimension of the battery and device housing effectively. The latch holder rails extend in one direction, the latch catch slides perpendicular to the battery interface, and the latch button actuates in a third dimension. This three-dimensional arrangement provides robust and reliable latching functionality while minimizing the footprint area, thereby maximizing the volume available for the battery
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 efficient space utilization, easy installation and removal of the latch assembly, and prevents interference with antenna components, facilitating maintenance and repair.
Implementation Method 1
a latch spring configured to be coupled to both the latch holder and the latch catch to bias the latch catch along the axis
Data Source
AI summary
A latch assembly for latching a battery to a portable communication device includes a latch holder having an elongate body defining an axis, and a latch catch configured to be coupled to the latch holder and to slide linearly relative to the latch holder along the axis. The latch assembly additionally includes a latch spring configured to be coupled to both the latch holder and the latch catch to bias the latch catch along the axis, and a latch button configured to be coupled to the latch holder. The latch assembly additionally includes a latch pin configured to removably engage and disengage the latch holder to retain the latch assembly inside the portable communication device and allow removal of the latch assembly.