Frame type cavity opening insulation temperature sensor

Abstract

The invention discloses a frame type cavity opening insulation temperature sensor, and relates to the technical field of sensors. The frame type cavity opening insulation temperature sensor includes a heat-conducting insulating outer frame, a plurality of cavity opening insulating device structures are arranged in the heat-conducting insulating outer frame, each cavity opening insulating device structure is provided with a thermosensitive resistor, a thermal fuse link, a fuse link wire harness, a thermosensitive wire harness and an insulating elastic piece, and the thermal fuse links and the thermosensitive resistors are installed in the heat-conducting insulating outer frames. According to the frame type cavity opening insulation temperature sensor, the solid morphological structure main body is integrally formed; at least one cavity opening fixing structure, at least one cavity opening clearance heat dissipation structure and at least one cavity opening insulation device structure are arranged, a plurality of cavity opening insulation structures are arranged according to performance requirements, a connecting line branching positioning clamp is arranged in each cavity opening, insulation heat conduction glue is arranged on the inner side of each cavity opening, and at least one electronic component for temperature sensing is arranged in the insulation heat conduction glue and the sealing insulation integrated molding meets the national 3C safety regulation reinforced insulation requirements.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a frame-type mouth insulation temperature sensor. Background technique [0002] The smart Xiaojiazhi bottom sensor has the technology of using casing insulation, metal outer and metal outer cards to fix the thermal fuse, and inner cards to fix the thermistor. The stamping method makes it fast, which is easy to cause voltage breakdown and internal wiring. Easy to short circuit, the hard-to-hard packaging structure of traditional sensors, too tight to crush the glass body of the thermistor, too loose will cause inaccurate temperature measurement, and there is a big problem with consistency. The traditional sensor shell and the shell form a closed gap Non-circulation structure and continuous heat, the internal gas does not circulate, resulting in abnormal fusing of the sensor fuse, and it is impossible to achieve a truly safe reinforced insulation. Only by relying on the grounding p...

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Problems solved by technology

[0002] The smart Xiaojiazhi bottom sensor has the technology of using casing insulation, metal outer and metal outer cards to fix the thermal fuse, and inner cards to fix the thermistor. The stamping method makes it fast, which is easy to cause voltage breakdown and internal wiring. Easy to short circuit, the hard-to-hard packaging structure of traditional sensors, too tight to crush the glass body of the thermistor, too loose will cause inaccurate temperature measurement, and there is a big problem with consistency. The traditional sensor shell and the shell form a closed gap Non-circulation structure and continuous heat, the internal gas does not circulate, resulting in abnormal fusing of the sensor fuse, and it is impossible to achieve a truly safe reinforced insulation. Only by relying on the grounding process can it meet the requirements of the national 3C safety regulations, and artificially produce consistent temperature effects Poor, numerous and complex work instructions lead to low efficiency in production and assembly of sensors

[0003] The grounding wire of the bottom sensor of the traditional smart rice cooker and the grounding wire of the top sensor are fixed in the heat preservation cover, and connected to the grounding wire of the metal middle ring to connect to the grounding wire of the power supply. For the integrated circuit board scheme of the existing switching power supply scheme of the rice cooker, the real strength cannot be realized. Separation, guide and control the working process of starting up or shutting down, frying machine, frying board, burning chips, when the top sensor of the weak current part, and the fuse of the bottom sensing strong current part, the thermistor of the bottom sensor, there is only one layer of casing The insulation and other parts are all metal conductors. When the thermistor and the fuse are connected by a general-purpose metal buckle, there will be sharp edges, burrs, and the principle of thermal expansion and contraction in the production process, which will puncture the insulating sleeve, resulting in Strong and weak current flow on the line control board, frying machine, frying board, burning chip, the traditional bushing insulation method, the two ends of the insulation method components directly touch the air, and the connecting terminal and the lead wire of the component are connected in a long-term humid working environment Oxidation reaction affects the service life of components

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