Sensor unit for a portable computer system and integration of the sensor unit

The manufacture of portable computer system with a sensor unit for determining the core body temperature, by integration of the sensor unit comprising:

• one or more heat flow sensors, in the form of a solderable thin monolithic heat flow sensor with sandwich-like structure, forming a closed body on at least one side and a number of sensing junctions between different metal layers,
• at least one measuring temperature sensor,
• wherein the at least one measuring temperature sensors and the one or more heat flow sensors are soldered directly onto a printed circuit board or onto two different printed circuit boards, into a housing or into an adhesive pad, to be attachable onto a skin (H) of a user,
• wherein:
• provision of the housing with a cavity, or the adhesive pad with a cavity,
• provision of the sensor unit
• insertion of the sensor unit into a sensor unit sleeve of a mechanically flexible material comprising a thermally conductive silicone, wherein connecting wires protrude from the sensor unit sleeve,
• insertion of the sensor unit at least partly enclosed by the sensor unit sleeve into the cavity in the housing of the portable computer system, or the cavity in the adhesive pad, and
• subsequent connection of the connecting wires to the electronics of the portable computer system, wherein the sensor unit is embedded in the sensor unit sleeve forming a plug which remains in a recess of the housing.