Sensor package is provided that includes a package housing defining a receiving cavity and having a package side. The package side includes a detector opening therethrough. The sensor package also includes a sensor module held by the package housing and disposed within the receiving cavity. The sensor module has a sensor side that is aligned with the detector opening such that the sensor side is exposed to a detection space. The sensor module also includes a conductive pathway that is configured to transmit signals that are based on an environmental parameter detected by the sensor module. The sensor package also includes an electrical contact that is coupled to the package housing. The electrical contact includes a contact finger. The contact finger is engaged to the conductive pathway and exerts a normal force against the conductive pathway.

In a gas sensor, not only a tube 70 covers lead wires 48, but also the tube 70 covers an outer peripheral surface of an end portion of an outer cylinder 46 including an open end 46a. A portion of the outer peripheral surface of the outer cylinder 46 covered with the tube 70 is gripped by a clamp 80. Thus, the clamp 80 integrally grips the tube 70 and the outer cylinder 46. Moreover, the tube 70 protrudes from the clamp 80 to a side of the outer cylinder 46 opposite from the open end 46a (protrusion amount L>0). Further, the open end 46a of the outer cylinder 46 forms a large-diameter portion whose outer diameter is larger than an inner diameter D1 of the clamp 80.

A sensor including a sensor element, a metallic shell, a terminal fitting, a cylindrical case, lead wires, a connector portion, and a cylindrical heat shield tube. The heat shield tube includes a first tube and a second tube. The second tube is disposed on a distal end side of the first tube and covers an outer surface of the rear end side of the case, while providing an overlapping portion that overlaps the first tube. A rear end side of the first tube is adjacent to the connector portion. A total length T of the heat shield tube and a length S of the overlapping portion satisfy T/10≤S≤T/5. Further, a length L1 of the first tube and a length L2 of the second tube satisfy T/2≤L2<L1.

Provided is a method for manufacturing a gas sensor capable of securing airtightness without a chip in a sensor element. The method includes a step of obtaining an assembled body constituting the gas sensor, including steps of causing one end of the sensor element to abut to a positioning member for positioning the sensor element; applying a force F1 to the annularly-mounted members including a powder compact annularly mounted to the sensor element under a state that the sensor element is positioned and thereby compressing the powder compact so as to fix the sensor element inside of the tubular body, applying a force F2 larger than the force F1 to the annularly-mounted members under a state that the sensor element is not positioned and thereby further compressing the powder compact, so as to hermetically seal inside of the tubular body.

Provided is a method for manufacturing a gas sensor which suppresses a defective product caused by a defective posture of a sensor element therein. The method includes a step of obtaining an assembled body constituting the gas sensor, including steps of: causing one end of the sensor element to come to abut to a positioning member for positioning the sensor element; and applying a first force to the annularly-mounted members including a powder compact annularly mounted to the sensor element under a state that the sensor element is positioned and thereby compressing the powder compact so as to fix the sensor element inside of the tubular body, and the compression is performed while constraining the sensor element in a predetermined constraining region in the other end side of the sensor element.

A gas sensor includes, in a single housing section, a substrate mounting surface 31 mounted with a substrate including a light emitter and a light receiver and a mirror section including plural reflectors. Then, in the housing section, all of the plural reflectors are integrally molded on an inner surface of the housing section to multiple reflect light emitted from the light emitter and cause the light to enter the light receiver in an opposing direction of one side and the other side in an extension direction of the substrate mounting surface.

A gas sensor is capable of realizing a stable crimped shape even when the crimp portion of the housing is pressed from above during manufacture. The gas sensor includes a holding member that holds part of a sensor element. A housing accommodates the sensor element and the holding member and includes a tubular main body and tubular crimp portion. The crimp portion is located closer to a rear end than the main body, and presses, in a partially bent state, a rear end of the holding member. The crimp portion has a bending point at which a thickness changes more significantly than in each of a portion close to the main body and a portion close to the rear end, or is a point at which a degree of change in the thickness changes between the portion close to the main body and the portion close to the rear end.

Provided is a gas sensor capable of realizing a stable crimped shape even when the crimp portion of the housing is pressed from above during manufacture. The gas sensor includes a sensor element, a holding member, and a housing. The sensor element is used to measure the concentration of a predetermined gas component in measurement target gas. The holding member holds part of the sensor element. The housing accommodates the sensor element and the holding member. The housing includes a tubular main body and a tubular crimp portion. The crimp portion is located closer to a rear end than the main body is, and presses, in a bent state, a rear end of the holding member. A cutout is formed in part of the crimp portion in a circumferential direction.

A gas sensor includes a gas sensing element positioned at least partially within a body and being exposed at a first end to measure a gas in contact with the first end. A sleeve is fixed to the body and extends from the body in a direction opposite the first end of the gas sensing element. The sleeve includes it remote end portion having an engagement feature. A connector housing is overmolded onto the end portion of the sleeve to lock onto the sleeve via the engagement feature. The connector housing includes a plug connector portion partially enclosing a plurality of electrical terminals electrically connected to the gas sensing element.

A gas sensor includes a metallic shell extending along a shell axis and defining a shell attaching surface that is substantially perpendicular to the shell axis; a metallic shield extending along a shield axis and defining a shield attaching surface that is substantially perpendicular to the shield axis; and a ceramic sensing element extending along a sensing element axis, the sensing element being rigidly fixed at a first axial location of the sensing element to the shell and the sensing element being laterally supported by the shield at a second axial location of the sensing element that is axially spaced apart from the first axial location. The shield is attached to the shell at an interface formed between the shield attaching surface and the shell attaching surface, thereby accommodating misalignment between the shield axis and the shell axis. A method of making the gas sensor is also provided.