A Dual Sensor Adaptation Structure

Abstract

The invention relates to the technical field of temperature control sensors, in particular to a dual sensor adaptation structure. It includes a temperature-sensing housing and a plastic bracket, the plastic bracket is set in the temperature-sensing housing and connected with it, the upper end surface of the plastic bracket is provided with a receiving frame and a retaining frame, and a heat-sensitive component is arranged in the receiving frame. Two thermal fuses are arranged in the retaining frame, and a heat conduction hose clamp is connected between the two thermal fuses, and the heat conduction hose clamp and the heat-sensitive component are set against the temperature-sensing surface on the upper end of the temperature-sensing housing. The invention has a reasonable structure, and the two thermal fuses are integrally connected through the heat-conducting throat hoop, and are integrally assembled with the heat-sensitive component on the upper end surface of the plastic bracket, effectively reducing the radial size of the sensor, and both the retaining frame and the containing frame are provided with fixed pins The openings avoid the low efficiency of perforated assembly in the past; it is beneficial to improve assembly efficiency and automation, and the heat conduction hose clamp cooperates with double fuses to maintain synchronous temperature sensing, so that the sensor can obtain better thermal sensitivity.

Description

technical field [0001] The invention relates to the technical field of temperature control sensors, in particular to a dual sensor adaptation structure. Background technique [0002] In recent years, with the rapid development of plastic materials, they have been replaced in many metal material applications because of their complex processing capabilities, fast efficiency, simultaneous processing of multiple workpieces, and high integration. In the field of plastic materials, with the gradual improvement of the weather resistance of plastic materials, there are more options for use, especially in the field of adaptive structures. [0003] For example, Chinese patent 201510214517.5 in an integrated sensor patent group discloses the structure of multi-functional integrated parts such as adapting thermal components, thermal fuses, trigger mechanisms, switches, anti-dry heating, and PTC, which indicates that the industry is using plastic materials to replace In the past, alumin...

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Problems solved by technology

[0003] For example, Chinese patent 201510214517.5 in an integrated sensor patent group discloses the structure of multi-functional integrated parts such as adapting thermal components, thermal fuses, trigger mechanisms, switches, anti-dry heating, and PTC, which indicates that the industry is using plastic materials to replace In the past, aluminum-plated metal materials were used as the beginning of the adaptation structure, but the current sensor structure is set to the action of the outer spring of the bracket, and the action sensitivity is not enough. It is difficult to achieve good contact with the temperature-sensing surface of the thermistor and the fixed position of the fuse. Large; and due to the needs of product installation and shape design, there is an urgent need for a structural design with a smaller size

[0004] Chinese patents 201520625189.3 and 201520625105.6 disclose an adaptation structure in which ceramic pillars are used to fix the thermistor, plastic parts fix the fuse and then lead wires are perforated. The sensitivity is reduced, and the adhesion mode between the ceramic column and the temperature-sensitive aluminum cover is easy to fall off at high temperature and other adverse effects. The lead wire is led out through the perforation, which leads to a decrease in assembly efficiency, and the thermal fuse is only one layer of protection and is prone to failure.

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