A sensor insulation adaptation structure

Abstract

The invention relates to the field of temperature-controlled sensors, and specifically refers to a sensor insulation adapting structure. The sensor insulation adapting structure comprises a plastic bracket and thermal fuses, wherein the upper end surface of the plastic bracket is provided with position fixing frames, limiting grooves which adapt to the thermal fuse are formed in each position fixing frame, and the thermal fuses are transversely and horizontally placed in the limiting grooves; side walls of the position fixing frames at two ends of the limiting grooves are provided with wire clamping notches, and pins at both ends of each thermal fuse are led out transversely from the corresponding wire clamping notches; and an insulating rubber sleeve with a vertical section in an inverted ''U''-shape is arranged inside each limiting groove, and the insulating rubber sleeve coats the upper side outer edge and two side outer edges of each thermal fuse. The sensor insulation adapting structure is reasonable in structure, thermosensitive elements and the thermal fuses are transversely arranged on the plastic bracket, the problem of low perforating and assembling efficiency is avoided, the insulating rubber sleeves are matched with the limiting grooves to coat the thermal fuses so that the thermal fuses are effectively fixed in a whole, the problem of poor contact caused by displacement due to swing of lead wires are avoided, the integral insulating performance is improved, the operating radial dimension of the sensor is effectively reduced, and the miniaturization design is achieved.

Description

technical field [0001] The invention relates to the technical field of temperature control sensors, in particular to a sensor insulation 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, ...

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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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