Temperature Sensor

Abstract

The invention provides a temperature sensor which is light in weight and thin, has excellent safety and weather resistance and can accurately measure a temperature regardless of a slight position deviation. The temperature sensor comprises the following parts: a first insulating film (2A), a temperature-sensing element (3) arranged on the first insulating film (2A), a conductive wiring film (4) which is patterned on the first insulating film (2A) and connected with the temperature-sensing element (3), and an infrared absorption film (5) which is stacked over the temperature-sensing element (3) through a second insulating film (2B). Accordingly, the whole temperature sensor has a film-shaped or strip-shaped structure formed by lamination of multiple layers of films, is light in weight and thin, has flexibility and can be easily mounted in a narrow space or a bend space or other places.

Description

technical field [0001] The present invention relates to a temperature sensor that approaches an object to be measured and measures the temperature of the object to be measured. Background technique [0002] Generally, inside an automobile or the like, a plurality of temperature sensors are mounted to detect the temperature of each part. For example, in an assembled battery in which a plurality of cells (single cells) are assembled as a storage battery of a hybrid vehicle or an electric vehicle, a plurality of temperature sensors are arranged corresponding to individual cells in order to measure the temperature of each cell. [0003] Also known is a technique of measuring the temperature distribution in the cells of the assembled battery and specifying the maximum and minimum temperature locations, thereby estimating and managing the temperature distribution. [0004] Conventionally, for example, Patent Document 1 proposes a technology in which, in an assembled battery assem...

AI Technical Summary

Problems solved by technology

[0008] However, in this case, a plurality of temperature sensors need to be fixedly mounted on individual cells in an adhesive state, and there is a problem that the installation work is troublesome and the installation workload increases.

In addition, since the conventional temperature sensor installed has wires connected to the thermistor, there are problems such as an increase in weight due to the wires or deterioration of the connection part between the wires and the thermistor due to vibration.

[0009] In addition, the unit size of the assembled battery is required to be miniaturized. As the module density increases with the miniaturization, the space for arranging the temperature sensor is narrowed, and it is difficult to install the conventional temperature sensor.

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