Terminal Speaker Grill and Antenna Carrier Segmentation
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Solution Overview
Problem
The integration of internal antennas and speakers in portable wireless communication terminals faces challenges due to spatial restrictions, leading to reduced front radiation space for the speaker and potential damage during the antenna plating process, which affects performance and appearance quality.
Innovation Solution
A terminal design that houses a speaker grill in a penetrating hole of a first upper carrier, with a separate intenna pattern on a second upper carrier, allowing for coupling without plating the speaker grill, thus relieving spatial restrictions on X, Y, and Z-axes and preventing damage during the antenna plating process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the speaker and intenna are integrated within the same terminal space, then the terminal size is reduced, but the front radiation space of the speaker decreases due to the thickness of the housing surface
Solution Approach 1:
The patent divides the carrier into a first carrier for housing the speaker and a second carrier for housing the intenna, separating the two components into distinct structural units. This segmentation allows independent optimization of each component's space requirements while maintaining overall integration within the terminal.
Solution Approach 2:
The patent utilizes the Z-axis dimension by positioning the speaker at a lower level and the intenna at an upper level of the terminal, creating vertical layering. This dimensional arrangement allows both components to coexist without compromising the speaker's front radiation space, as the intenna is elevated above the speaker housing surface.
2Reliability
If the intenna is plated adjacent to the speaker, then the antenna performance is improved, but the speaker grill may be plated causing performance failure and external appearance quality deterioration
Solution Approach 1:
The patent segments the carrier structure into separate first and second carriers that are coupled together, creating a physical barrier between the speaker grill and the intenna plating process. This structural separation ensures that plating solutions applied to the intenna do not contact the speaker grill, preventing both performance degradation and aesthetic damage.
Solution Approach 2:
The first carrier acts as an intermediary protective structure between the speaker grill and the plating process. By housing the speaker grill within the first carrier and positioning the intenna on the second carrier, the design creates a protective barrier that prevents direct exposure of the speaker grill to plating chemicals while still allowing the intenna to receive proper plating treatment.
3Device complexity
If a housing surface is provided to receive the speaker grill, then the speaker structure is complete, but the thickness of the housing surface reduces the acoustic resonance space
Solution Approach 1:
The patent nests the speaker grill within a penetrating hole of the first carrier rather than placing it on a separate housing surface. This nesting approach eliminates the need for an additional housing surface thickness, as the speaker grill is directly received within the carrier structure itself, thereby maximizing the available acoustic resonance space within the Z-axis dimension.
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
This design secures front surface radiation space for the speaker within the same space, enhancing performance and appearance quality by preventing the speaker grill from being plated and maintaining acoustic resonance space, while allowing for efficient coupling of the speaker and intenna devices.
Implementation Method 1
When a current flows to a voice coil under a magnetic force line formed by the magnet, a lorentz force occurs. As the voice coil vibrates the diaphragm by the lorentz force, air contacting with the diaphragm vibrates and thus a sound wave occurs.
Implementation Method 2
electromagnetic resonance space to secure an enough bandwidth is provided, and in order to exhibit excellent radiation characteristics, an antenna should be fully separated from a ground layer.
Data Source
AI summary
A terminal includes a first upper carrier including a speaker grill housed as a separate piece in a penetrating hole formed at one surface, and a second upper carrier having an antenna pattern in at least one surface and being coupled to one end of the first upper carrier. A method of manufacturing a terminal having a speaker device, comprises forming a penetrating hole to house the speaker device at one surface of a first upper carrier, coupling a speaker grill to the penetrating hole, forming an antenna pattern at one surface of a second upper carrier separated from the first upper carrier and coupling the first upper carrier and the second upper carrier.