TEMPERATURE SENSOR

摘要

A temperature detection element of a temperature sensor is connected to a print wire and three print wires for an input and output of a print substrate, one end of a lead wire for a connection is connected and fixed with solder to an external circuit for connection electrodes of the print wire, and the other end is externally drawn out of a sealing member of a hardened resin. Within the housing, the entire bottom surface of the print substrate is supported by a lower fixed member, and an end, closer to an opening part of the housing, of the print substrate, is sandwiched and fixed by an upper fixed member and the lower fixed member. The housing is configured with the same material and size as the housing of the temperature control element, and the temperature detection element inside is placed at a position approximated to a placement of a thermal response element of the temperature control element. By using an adhesive having a different thermal conductivity, a thermal characteristic of the temperature sensor can be varied.

主权项

1. A temperature sensor, comprising:
a temperature detection element for converting an ambient temperature into an electric temperature information signal; a housing, made of a metal or a resin, having a small side surface that forms one of remaining opposed small-area surfaces of a cuboid formed with opposed wide-area upper and lower surfaces and right and left opposed small-area side surfaces, and an opening part present in a portion opposed to the small side surface; a print substrate in which the temperature detection element is connected to print wires, a plurality of input and output terminals of the temperature detection element are respectively connected to input and output print wires, and connection electrodes are respectively formed at ends of the input and output print wires, within the housing; lead wires in which one end is connected to the connection electrodes and the other end is drawn out of the housing; a fixed member for fixing a side of an end closer to the opening part of the print substrate to the wide-area lower surface of the housing by pressing from above the side of the end; a hardened resin with which a space from the opening part to the fixed member is filled, for sealing a connection part with the connection electrodes of the lead wires connected to the connection electrodes, and lead wire covered parts on a side of the connection part; and a space part formed between five surrounding surfaces not including a surface connected to the print substrate of the temperature detection element and an inner surface of the housing, wherein the print substrate is placed so that an entire lower surface, which is a side surface opposite to an upper surface to which the temperature detection element is connected, can make close contact with the wide-area lower surface of the housing.