Temperature sensor

A temperature sensor, comprising:

• a temperature detection element that converts 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, connection electrodes are respectively formed at ends of the input and output print wires, and a penetration hole is formed between the connection electrodes and the temperature detection element, 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 lower fixed member, provided with a column that penetrates into the penetration hole of the print substrate, the lower fixed member aligning the print substrate with the column, and supporting a lower surface, which is a side surface opposite to an upper surface to which the temperature detection element of the print substrate is connected;
• an adhesive that has a specified area and thickness and is interposed between the lower fixed member and a surface supported by the lower fixed member of the print substrate;
• an upper fixed member, externally fit into the column, the upper fixed member fixing, along with the lower fixed member, the print substrate by pressing from above the side of an end closer to the opening part of the print substrate;
• a hardened resin with which a space from the opening part to the upper fixed member and the lower fixed member is filled and which seals 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 lower fixed member is placed so that an entire lower surface, which is a side surface opposite to an upper surface that supports the print substrate, makes contact with the wide-area lower surface of the housing.