Ceramic-Insulated Silver Coil for High-Temperature Transformers
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Solution Overview
Problem
Conventional coils used in vibration-type measuring transducers are limited to operating temperatures below 300°C, restricting their application in high-temperature industrial environments.
Innovation Solution
A coil design featuring a silver or silver-alloy coil wire surrounded by a ceramic insulating layer and covered with a ceramic or glass protective layer, enhancing temperature resistance to operate effectively above 350°C.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional coil designs are used in vibration-type measuring transducers, then the device can operate at standard temperatures, but the operating temperature is limited to below 300°C
Solution Approach 1:
The patent applies composite materials by combining ceramic insulating layer, glass protective coating, and metal coil wire into a unified coil structure. The ceramic material provides high-temperature insulation while the glass coating adds protective properties, enabling the coil to operate reliably at temperatures above 350°C without compromising structural integrity or electrical performance
Solution Approach 2:
The patent changes the material parameters of the coil components, specifically using ceramic materials with high melting points and thermal stability, glass coatings with high-temperature resistance, and metal alloys maintained at temperatures exceeding 350°C. These parameter changes transform the coil from a standard-temperature component to a high-temperature capable component
2Temperature
If the coil is designed with ceramic insulating layer and glass protective coating to increase temperature resistance, then operating temperature can exceed 350°C, but the manufacturing complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-coating the coil wire with ceramic insulating material before winding, and then applying glass protective coating in a separate preliminary step. This sequence of pre-prepared layers simplifies the final assembly process, as the high-temperature protective structure is already in place before the coil is integrated into the measuring transducer
Solution Approach 2:
The composite structure of ceramic-insulating-layer-plus-glass-coating-on-metal-wire creates a multi-functional component that simultaneously provides electrical insulation, mechanical protection, and high-temperature resistance, thereby managing complexity through material integration rather than separate components
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
The coil design significantly increases temperature resistance, enabling reliable operation above 350°C and extending the application range of vibration-type measuring transducers in high-temperature conditions.
Implementation Method 1
a coil wire (14) which is composed, at least partially of silver or a silver-alloy and which is at least partially surrounded by an insulating layer (14a) composed, at least partially of a ceramic material
Implementation Method 2
an insulating layer (14a) composed, at least partially of a ceramic material
Implementation Method 3
a protective cover layer (15) composed, at least partially of a ceramic and/or glass material, covering the coil wire (14) wound around the coil carrier (12)
Data Source
AI summary
The coil comprises a coil carrier, a coil wire at least partially surrounded by an insulating layer and wound around the coil carrier, as well as a protective cover layer at least partially covering the coil wire wound around the coil carrier. The coil wire is composed, at least partially, of silver, the insulating layer surrounding the coil wire is composed, at least partially, of a ceramic material, and the protective cover layer is composed, at least partially, of a ceramic material and/or a glass.