Abstract: A rotation detection apparatus includes a plurality of detection elements each outputting a signal responding to a change in magnetic flux caused by a rotation of a rotor, and a sensor body including the plurality of detection elements. The plurality of detection elements output signals having mutually different phases with respect to peaks of waveforms corresponding to respective output signals.

Abstract: A rotation detecting unit is adapted for a rotatable body. The rotation detecting unit includes a rotation detecting part, a signal transmission member, and a main body part. The rotation detecting part detects a rotational state of the rotatable body and outputs a rotation detection signal. The signal transmission member is electrically connected to the rotation detecting part to transmit the rotation detection signal to an external device. The main body part holds at least a part of the signal transmission member and the rotation detecting part. The main body part is integrally molded from thermosetting resin including a joined part obtained as a result of joining together a terminal of the rotation detecting part and the signal transmission member, the part of the signal transmission member, and the rotation detecting part. The main body part includes a recess at a region corresponding to the rotation detecting part.

Abstract: A signal transmitting member is electrically connected to a rotation sensing device and transmits a rotation sensing signal from the rotation sensing device to an external device. An internal structure holds the rotation sensing device and a portion of the signal transmitting member. At least one rib is molded on an outer peripheral surface of the internal structure. The internal structure is integrally molded with a resin material and includes an installing portion, which is configured to install the rotation sensing apparatus to an external subject body through the installing portion, and a holding portion, which is configured to enable holding of the rotation sensing apparatus through the holding portion. A plurality of recesses is formed between the installing portion and the holding portion.

Abstract: A rotation detector component detects a rotational state of a rotor and sends a rotational detection signal. A signal transmission component is electrically connected with a lead frame of the rotation detector component to transmit the rotational detection signal to an external device. A body portion holds the rotation detector component and a part of the signal transmission component. The body portion is integrally molded of a first resin to cover a joint portion between the lead frame and the signal transmission component, the rotation detector component, and a part of the signal transmission component. A part of the rotation detector component forms an exposed portion exposed from the body portion.

Abstract: A rotation detector component detects a rotational state of a rotor and sends a rotational detection signal. A signal transmission component is electrically connected with a lead frame of the rotation detector component to transmit the rotational detection signal to an external device. A body portion holds the rotation detector component and a part of the signal transmission component. The body portion is integrally molded of a first resin to cover a joint portion between the lead frame and the signal transmission component, the rotation detector component, and a part of the signal transmission component. The rotation detector component has corners including at least two exposed corners, which are exposed from the body portion.

Abstract: A sensor main body includes sensing elements, which sense rotation of a rotatable body. A first molded body is made of a resin material and covers the sensor main body. The sensor main body is placed at a distal end portion of the first molded body. A cover covers the distal end portion of the first molded body. An electrically conductive member is placed between the cover and the sensor main body and is electrically connected to a ground terminal of the sensor main body.

Abstract: A rotation detection device includes an encoder that is rotatably arranged, multiple detection object portions that are provided in the encoder and arranged in a circumferential direction, and a rotation detector for detecting rotation of the encoder. The rotation detector includes a detection portion for detecting the rotation of the encoder, a pulse generation portion for generating a pulse based on a detection signal that is outputted from the detection portion, a rotation speed calculation portion for calculating a first rotation speed of the encoder based on the pulse, a pulse counter for counting the pulse, an encoding portion for encoding information that includes the first rotation speed and a counter value of the pulse counter, and a communication portion for communicating the encoded information through unidirectional communication or interactive communication with an external device.

Abstract: A signal transmitting member is electrically connected to a rotation sensing device and transmits a rotation sensing signal from the rotation sensing device to an external device. An internal structure holds the rotation sensing device and a portion of the signal transmitting member. At least one rib is molded on an outer peripheral surface of the internal structure. The internal structure is integrally molded with a resin material and includes an installing portion, which is configured to install the rotation sensing apparatus to an external subject body through the installing portion, and a holding portion, which is configured to enable holding of the rotation sensing apparatus through the holding portion. A plurality of recesses is formed between the installing portion and the holding portion.

Abstract: A rotation detector component detects a rotational state of a rotor and sends a rotational detection signal. A signal transmission component is electrically connected with a lead frame of the rotation detector component to transmit the rotational detection signal to an external device. A body portion holds the rotation detector component and a part of the signal transmission component. The body portion is integrally molded of a first resin to cover a joint portion between the lead frame and the signal transmission component, the rotation detector component, and a part of the signal transmission component. The rotation detector component has corners including at least two exposed corners, which are exposed from the body portion.

Abstract: A rotation detector component detects a rotational state of a rotor and sends a rotational detection signal. A signal transmission component is electrically connected with a lead frame of the rotation detector component to transmit the rotational detection signal to an external device. A body portion holds the rotation detector component and a part of the signal transmission component. The body portion is integrally molded of a first resin to cover a joint portion between the lead frame and the signal transmission component, the rotation detector component, and a part of the signal transmission component. A part of the rotation detector component forms an exposed portion exposed from the body portion.

Abstract: A rotation detecting unit is adapted for a rotatable body. The rotation detecting unit includes a rotation detecting part, a signal transmission member, and a main body part. The rotation detecting part detects a rotational state of the rotatable body and outputs a rotation detection signal. The signal transmission member is electrically connected to the rotation detecting part to transmit the rotation detection signal to an external device. The main body part holds at least a part of the signal transmission member and the rotation detecting part. The main body part is integrally molded from thermosetting resin including a joined part obtained as a result of joining together a terminal of the rotation detecting part and the signal transmission member, the part of the signal transmission member, and the rotation detecting part. The main body part includes a recess at a region corresponding to the rotation detecting part.

Abstract: A rotation detector having a Hall IC in a case-shape housing includes a wiring extending therefrom in a direction of a bent portion of a detector body in accordance with one of plural predetermined directions of a position pin defined by pin receivers when the detector body is molded by using a mold having the position pin.

Abstract: A rotation detector having a Hall IC in a case-shape housing includes a wiring extending therefrom in a direction of a bent portion of a detector body in accordance with one of plural predetermined directions of a position pin defined by pin receivers when the detector body is molded by using a mold having the position pin.

Abstract: A rotation detecting device includes a housing that has an open end, a bottom end and an inside wall, and a rotation sensing unit disposed inside the housing. The rotation sensing unit includes an IC unit and a shape adjusting member that covers the IC unit. The shape adjusting member has an outer periphery fitted to the inside wall of the housing to hold the IC unit tight in the housing.

Abstract: A rotational speed detector such as a wheel speed detector has an elongate housing containing a detector unit therein. The detector unit is a molded unit having a sensor element and an integrated circuit chip for processing sensor signals. A front wall of the elongate housing faces a magnetized rotor rotated by a rotating object so that the rotational speed of the rotor is detected by the detector unit. After the housing and a center rod having a terminal wire for leading out the detected electrical signals are connected to each other, a resin mold covering an outside of the center rod and a part of the housing is formed to formulate a unitary body of the rotational speed detector.

Abstract: A detector for detecting rotational speed of a vehicle wheel includes a detector element disposed in a housing and a lead wire for sending output signals of the detector element to an outside device. An output terminal of the detector element is electrically connected to the lead wire by tungsten inert gas welding. The housing and the lead wire are molded together with a resin material that forms an outer wall of the detector. Since the lead wire and the output terminal are connected by the tungsten inert gas welding, the junction is protected from any damages due to pressure and heat generated in the molding process.

Abstract: A rotational speed detector such as a wheel speed detector has an elongate housing containing a detector unit therein. The detector unit is a molded unit having a sensor element and an integrated circuit chip for processing sensor signals. A front wall of the elongate housing faces a magnetized rotor rotated by a rotating object so that the rotational speed of the rotor is detected by the detector unit. After the housing and a center rod having a terminal wire for leading out the detected electrical signals are connected to each other, a resin mold covering an outside of the center rod and a part of the housing is formed to formulate a unitary body of the rotational speed detector.

Abstract: The rotation of a rotating magnet is detected by magnetic sensors. The rotational speed is detected from pulse signals detected by magnetic sensors, and the rotational direction is detected from the difference in a shift in phase. Signals different in pulse width are generated according to the rotational direction. A signal selection circuit outputs a pulse signal with timing for the rotational speed. A rotational speed determining circuit outputs a decision signal Sf of a high level when the rotational speed reaches a predetermined speed. When a self-diagnostic circuit determines that the magnetic sensors have malfunctioned, a binary error code generating circuit generates an error signal Sg and a 4-bit error code signal Sh. When the signal Sf of the rotating magnet is brought to a high level, the signal selection circuit outputs an error code signal and allows output an output current Is.

Abstract: In an insert molded product 10 according to the present invention, a primary molded part 2 formed around an insert member 1 in primary molding has an external surface of convexo-concave shape in which convex portions 2a, 2a′ and concave portions 2b, 2b′, alternately arranged in the longitudinal direction of the insert member, and a secondary molded part 3 formed around the primary molded part in a secondary molding has an external surface which is generally flat in parallel to the longitudinal direction of the insert member. Therefore, in the secondary molded part also, convex portions 3a, 3a′ and concave portions 3b, 3b′ are alternately arranged. A protrusion 7 for welding is provided on the convex portion of primary molded part in the rear of the convex portion 2a that is provided on the primary portion for regulation of flow at the time of secondary welding.

Abstract: The rotation of a rotating magnet is detected by magnetic sensors. The rotational speed is detected from pulse signals detected by magnetic sensors, and the rotational direction thereof is detected from the difference in the way of making a shift in phase. Signals different in pulse width are generated according to the rotational direction. A signal selection circuit outputs a corresponding pulse signal with timing for the rotational speed. A rotational speed determining circuit outputs a decision signal Sf of a high level when the rotational speed reaches a predetermined speed. When a self-diagnostic circuit determines that the magnetic sensors have malfunctioned, a binary error code generating circuit generates an error signal Sg and a 4-bit error code signal Sh.