Method of manufacturing physical quantity sensor device and physical quantity sensor device
AssigneeFuji Electric Co., Ltd.
InventorFumiya UENO
Life of this patent
Estimating the term…
Abstract
An inner housing part has through-holes for connecting first lead pins (power supply terminal, output terminal, ground terminal) with the connector pins. The inner housing part has grooves that house second lead pins for adjusting output signals of a sensor chip. Three of the grooves each has a shape in which a distance between opposing sides of the groove is less than a diameter of the second lead pin that corresponds to the groove. The inner housing part is fixed to a case by a thermoset adhesive so as to house lead pins arranged in the case included in a sensor element. The second lead pins are fitted in the grooves, suppressing lifting of the inner housing part during curing of the adhesive.
Claims12
A method of manufacturing a physical quantity sensor device, wherein the physical quantity sensor device includes:
- a measured-medium intake part that has an intake hole that guides a measured medium that is one of a gas subject to measurement and a liquid subject to measurement;
- a sensor element in which first terminals are arranged, the sensor element being fixed on a base so as to cover the intake hole, the base being provided at one end of the intake hole of the measured-medium intake part;
- and
- a first housing part that sandwiches the sensor element with the measured-medium intake part and that includes holes to house the first terminals, the first housing part having therein a second terminal forming a connector part for connecting to external wiring,
- the method comprising:
- inserting the first terminals into the holes of the first housing;
- and
- fixing the first housing part to the sensor element by a thermoset adhesive,
- wherein a first hole, among the holes of the first housing part to house the first terminals, has a cross-sectional shape in which a distance between opposing sides of a cross-section of the first hole is less than a diameter of a first terminal housed in the first hole.
A physical quantity sensor device comprising:
- a measured-medium intake part having an intake hole that guides a measured medium that is one of a gas subject to measurement and a liquid subject to measurement, the measured-medium intake part having a base provided at one end of the intake hole;
- a sensor element fixed on the base so as to cover the intake hole;
- first terminals arranged in the sensor element;
- a first housing part that sandwiches the sensor element with the measured-medium intake part and houses the first terminals, the first housing part being fixed to the sensor element;
- and
- a second terminal forming a connector part for external wiring and joined to a predetermined terminal among the first terminals and arranged in the first housing part,
- wherein the first housing part includes a first hole among holes, the first hole having a cross-sectional shape in which a distance between opposing sides of a cross-section of the first hole is less than a diameter of a first terminal corresponding to the first hole.
Dependencies are inferred from the claim text.