Method for manufacturing an ntc temperature sensor and product thereof
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- DONGGUAN KEPENGDA ELECTRONIC TECH CO LTD
- Filing Date
- 2026-04-14
- Publication Date
- 2026-07-17
AI Technical Summary
NTC temperature sensors are prone to performance degradation and thermal fatigue damage in the high-temperature and frequent temperature cycling environment of grilling appliances, leading to inaccurate temperature control and shortened service life.
A ceramic shell with specific components is used in conjunction with a multi-layered gradient encapsulation structure, including a glass shell, a polyimide sleeve, modified epoxy resin, and high-temperature silicone resin adhesive. Through multi-element oxide doping and precision sintering processes, a high-density, low-defect crystalline phase structure is formed, which coordinates the differences in thermal expansion coefficients, absorbs thermal shock energy, and blocks the propagation of microcracks.
The sensor's temperature tolerance has been increased to 350℃, significantly reducing long-term drift rate, extending service life, and ensuring temperature measurement accuracy and reliability under harsh operating conditions in grilling appliances.
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