Sensor adaptive structure

Abstract

The invention relates to the technical field of temperature control sensors, specifically relates to a sensor adaptive structure. The structure comprises a temperature sensing shell, a plastic bracket, a thermal link and a thermosensitive device, the plastic bracket is arranged in the temperature sensing shell, an accommodating frame and a fixing frame are arranged on the upper end face of the plastic bracket, the thermosensitive device is fixed in the accommodating frame, and the upper end of the accommodating frame is abutted against the temperature sensing surface of the temperature sensing shell; the fixing frame is arranged on one side of the accommodating frame, the thermal link is arranged in the accommodating frame, and the outer edge of the thermal link is abutted against the temperature sensing surface of the temperature sensing shell. According to the invention, the structure is reasonable, the thermosensitive device is integrated with the thermal link through the plastic bracket, openings for fixing pins are arranged on the accommodating frame and the fixing frame, so that a problem of low piercing assembly efficiency in the prior art is avoided; the volume of the sensor is decreased because of the integrated plastic bracket, the assembly efficiency and the automation degree are improved, the heat conduction efficiency is improved by a heat conduction shell and a heat conduction metal layer, so that the sensor has better heat sensitivity than before.

Description

technical field [0001] The invention relates to the technical field of temperature control sensors, in particular to a 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, aluminum-pl...

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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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