Telephone Handset Magnetic Holding Structure and Sensor Guide
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Solution Overview
Problem
Existing intercom telephone devices face high replacement costs due to the fragility of the handset, which houses multiple electronic components including magneto-resistive sensors and loudspeakers, leading to substantial expenses in case of accidental deterioration.
Innovation Solution
A telephone apparatus design featuring a magnetic holding structure with reversed magnetic poles, a soft ferromagnetic material guide, and a single loudspeaker that alternates between ringtone and communication functions, reducing the number of electronic components and simplifying the handset's construction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple electronic components (magneto-resistive sensors, loudspeakers) are arranged in the handset, then the telephone device can perform ringing and communication functions, but the handset becomes fragile and replacement costs increase
Solution Approach 1:
The patent extracts the electronic components (magneto-resistive sensors, electronic card) from the handset and relocates them to the base. The base now houses these components, while the handset contains only the magnetic holding structure and loudspeaker. This extraction reduces handset complexity and fragility while maintaining full functionality through the magnetic coupling between base and handset.
2Adaptability or versatility
If two loudspeakers and two magneto-resistive sensors are used, then ringing and communication functions can be independently controlled, but device complexity and cost increase
Solution Approach 1:
The patent implements multi-functionality by using a single loudspeaker in the handset that serves both ringing and communication purposes. The magnetic holding structure with its specific pole arrangement also serves dual purposes: holding the handset and enabling sensor functionality. This reduces component count while maintaining functional versatility through clever design.
Solution Approach 2:
The patent merges multiple functions into fewer components. The magnetic holding structure combines holding functionality with sensor interaction capability. The single loudspeaker in the handset handles both ringing and communication audio output. The base houses both magneto-resistive sensors and electronic control circuitry, consolidating functions that were previously distributed.
3Device complexity
If the magnetic holding structure uses a single magnet, then the structure is simpler, but the holding force and magnetic field detection precision are insufficient
Solution Approach 1:
The patent employs asymmetric magnetic pole arrangement with specific N and S poles positioned to create optimized magnetic field distribution. The first and second magnetic poles are arranged with reversed polarity to generate both strong holding force through attraction to the ferromagnetic material and precise field lines for sensor detection, achieving both strength and precision through asymmetric design.
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 configuration effectively holds the handset in place using magnetic attraction, reduces component costs, and allows for precise detection of magnetic fields, lowering replacement costs and maintaining functionality with a single loudspeaker for both ringtone and communication purposes.
Implementation Method 1
the structure made of soft ferromagnetic material is arranged opposite the magnetized holding structure in order to be attracted by the structure holding magnet
Implementation Method 2
the structure made of soft ferromagnetic material comprises a guide portion of magnetic field lines to guide the magnetic field lines of the magnetic holding structure in the direction of the magnetic sensor
Data Source
Figure 1
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AI summary
The present invention relates to a telephone device comprising a base (1), a handset (2), and means for holding the handset (2) on the base (1) in an on-hook position, comprising a magnetic holding structure (3) in the handset (2) and a soft ferromagnetic material structure (4) in the base (1). The base (1) includes an electronic board (8) integrating a magnetic sensor (9) for cooperating with the magnetic holding structure (3) in the on-hook position. In the on-hook position, the soft ferromagnetic material structure (4) is interposed between the magnetic sensor (9) and the magnetic holding structure (3), and the soft ferromagnetic material structure (4) includes a magnetic field line guide portion (10) for guiding the magnetic field lines from the magnetic holding structure (3) towards the magnetic sensor (9) in the on-hook position.