A temperature-sensing linkage low internal resistance thermostat

Abstract

The invention relates to the technical field of temperature controllers and specifically relates to a temperature sensing linkage low internal resistance temperature controller comprising an insulating shell; a base seat, a motion reed and a temperature sensing double gold sheet; two ends of the base seat are respectively provided with a surrounding edge end plate and a partition panel, two sides of the base seat are respectively provided with a surrounding edge side plate and a support bracket, a fixed end of the motion reed is arranged between a first terminal and the base seat in a penetrating manner, a moving end of the motion reed is connected onto a second terminal in an overlapping manner, an upper end face of the insulating shell is provided with a temperature sensing window provided with a aluminium base sealing cover, the temperature sensing double gold sheet is abutted against the aluminium base sealing cover in a matched and connected manner, and a linkage bolt is arranged between the temperature sensing double gold sheet and the motion reed; the controller disclosed in the invention is reasonable in structure and compact in layout, thermal response and breaking sensitivity of the temperature controller is improved, deformation motion of the temperature sensing double gold sheet is transmitted via the linkage bolt, internal resistance of the temperature controller can be prevented, temperature sensing precision can be improved, the base seat and the insulating shell form a drawer type packaging structure, assembling efficiency is improved, micromation of the temperature controller can be facilitated, and overall costs can be lowered.

Description

technical field [0001] The invention relates to the technical field of temperature controllers, in particular to a temperature-sensing linkage low internal resistance temperature controller. Background technique [0002] With the hot sales of smart phones and new energy electric vehicles, battery overheating accidents have occurred and become more frequent all over the world, causing social concern and a decline in user safety experience. In view of this, installing thermal protection monitoring and safety control devices on product batteries can effectively reduce the occurrence of such incidents, which has also been verified to be an effective method in the application of other conventional electrical appliances. [0003] Existing overheating controllers generally use a bimetallic strip as a heat sensitive element, and the bimetallic strip is also used as a conductive component in a control circuit. For example, CN102157302B discloses a thermal protection temperature contr...

AI Technical Summary

Problems solved by technology

The bimetal and conductive terminals of this temperature control device need to be packaged in an insulating shell. The assembly of the bimetal follows a certain angle of action. The internal structure of the injection molded part requires high precision, and the assembly accuracy will determine the safety of the product. , assembly and packaging are more difficult, and the yield rate is difficult to improve

[0004] In addition to the temperature-sensing action mechanism, the bimetal sheet needs to connect the circuit between the terminals. Under the requirements of the temperature-sensing area and the temperature-sensing response value, the additional resistance of the control circuit is increased to further increase the temperature rise of the battery.

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