Abstract: A covered conductive wire is configured by covering a conductive wire with an insulating cover portion. The conductive wire is formed of an aluminum-based material, for example. A crimping portion includes a cover crimping portion for crimping the cover portion of the covered conductive wire, and a conductor crimping portion for crimping a portion of the conductive wire that is exposed when the cover portion is removed at the tip portion of the covered conductive wire. It is possible to use polyvinyl chloride and/or a non-halogen member, for example, for the cover portion of the covered conductive wire, and a plasticizer, filler, stabilizer, or the like is compounded as needed. A material that shrinks by a factor of 7% or less after being allowed to stand for 120 hours at a high temperature of 120° C. is used for this cover portion.

Abstract: A covered conductive wire is configured by covering a conductive wire with an insulating cover portion. The conductive wire is formed of an aluminum-based material, for example. A crimping portion includes a cover crimping portion for crimping the cover portion of the covered conductive wire, and a conductor crimping portion for crimping a portion of the conductive wire that is exposed when the cover portion is removed at the tip portion of the covered conductive wire. It is possible to use polyvinyl chloride and/or a non-halogen member, for example, for the cover portion of the covered conductive wire, and a plasticizer, filler, stabilizer, or the like is compounded as needed. A material that shrinks by a factor of 7% or less after being allowed to stand for 120 hours at a high temperature of 120° C. is used for this cover portion.

Abstract: A conductor wire crimping portion (7) has depressions (13a, 13b, 13c) that are disposed at prescribed intervals in the axial direction and that are linear locking portions. The depressions (13a, 13b, 13c) are continuously depressed grooves on the inner surface of a crimping portion (5). On an upper die (30a), at a portion corresponding to the conductor wire crimping portion (7), a straight portion is formed, and in the front-back direction thereof, tapered portions are formed. More specifically, the upper die (30a) is formed to have an inverted trapezoid shape, a middle portion of which protrudes in the crimping direction. Consequently, at each boundary between the straight portion and the tapered portion, a die angled portion (32) is formed. At an area corresponding to the straight portion of the upper die (30a), the depression (13a) is provided, and at an area corresponding to the die angled section (32), the depression (13b) is provided.

Abstract: A conductor wire crimping portion (7) has depressions (13a, 13b, 13c) that are disposed at prescribed intervals in the axial direction and that are linear locking portions. The depressions (13a, 13b, 13c) are continuously depressed grooves on the inner surface of a crimping portion (5). On an upper die (30a), at a portion corresponding to the conductor wire crimping portion (7), a straight portion is formed, and in the front-back direction thereof, tapered portions are formed. More specifically, the upper die (30a) is formed to have an inverted trapezoid shape, a middle portion of which protrudes in the crimping direction. Consequently, at each boundary between the straight portion and the tapered portion, a die angled portion (32) is formed. At an area corresponding to the straight portion of the upper die (30a), the depression (13a) is provided, and at an area corresponding to the die angled section (32), the depression (13b) is provided.

Abstract: A substrate (1) includes conductive portions (7) formed by press working and a resin portion (11) integrally injection-molded with the conductive portions (7). The conductive portions (7) are formed from, for example, a copper alloy. The resin portion 11 is formed from, for example, PPS. A surface-mount component (3), which is an electronic surface-mount component, is mounted on the substrate (1). The surface-mount component (3) has electrodes (5) at its opposite sides, and the electrodes (5) and the respective conductive portions (7) are electrically connected by means of a solder (9). The substrate (1) has a hole (13), which functions as a stress relaxation mechanism, formed in the resin portion (11) (a portion extending therethrough) between connection portions (15) under the surface-mount component (3). The substrate (1) also has resin-exposed portions (13), which function as a stress relaxation mechanism, formed on opposite sides of the surface-mount component (3).

Abstract: A circuit board is formed such that a printed circuit board is connected to an injection molded circuit board. An internal circuit conductor is exposed at conductor part at a printed circuit board mounting part. Through holes are provided in the printed circuit board. The conductor part is formed substantially perpendicular to the circuit board mounting part, and is inserted into a through hole. A female screw part is formed in the vicinity of the conductor part in the printed circuit board mounting part. The female screw part can be screwed together with a bolt, which is a securing member. The printed circuit board is connected to the conductor part by solder. A hole is formed in advance in the vicinity of the solder on the printed circuit board. The bolt passes through the hole and is secured to the female screw part.

Abstract: A substrate usable for such as DC-DC converters, which has no defects such as openings therein but is more compact and easy to be manufactured and a method of manufacturing the same is provided. First, circuit materials are cut off by pressing and bended to be formed in desired shapes. Next, the circuit materials are joined or placed in predetermined positions to form a circuit conductor 15. Junction is performed by welding. Next, the circuit conductor 15 is installed on the mold 19. The mold 19 is for injection molding of resin 9 and has a predetermined cavity therein. The circuit conductor 15 is fixed to the mold 19, for example by a pin of a prescribed position. In such a condition, resin is injected into a mold. The substrate 1 is formed by the injection of resin to a surface and between layers of the circuit conductor.

Abstract: A substrate (1) includes conductive portions (7) formed by press working and a resin portion (11) integrally injection-molded with the conductive portions (7). The conductive portions (7) are formed from, for example, a copper alloy. The resin portion 11 is formed from, for example, PPS. A surface-mount component (3), which is an electronic surface-mount component, is mounted on the substrate (1). The surface-mount component (3) has electrodes (5) at its opposite sides, and the electrodes (5) and the respective conductive portions (7) are electrically connected by means of a solder (9). The substrate (1) has a hole (13), which functions as a stress relaxation mechanism, formed in the resin portion (11) (a portion extending therethrough) between connection portions (15) under the surface-mount component (3). The substrate (1) also has resin-exposed portions (13), which function as a stress relaxation mechanism, formed on opposite sides of the surface-mount component (3).

Abstract: A rotation sensor functioning as both a rotation-angle sensor and a torque sensor is provided which, when applied to a steering sensor for an automobile, for example, permits reduction in the number of components and thus in the weight of the automobile and contributes to conservation of global environment. The rotation sensor has slip rings covered with conductive synthetic resin having small coefficient of friction, allowing the contact pressure of brushes disposed in sliding contact with the slip rings to be kept low and the life duration of the slip rings to be prolonged. Further, no metal powder is produced when the brushes slide on the respective slip rings, and it is therefore possible to prevent the formation of unwanted insulating film.

Abstract: A rotation sensor functioning as both a rotation-angle sensor and a torque sensor is provided which, when applied to a steering sensor for an automobile, for example, permits reduction in the number of components and thus in the weight of the automobile and contributes to conservation of global environment. The rotation sensor has slip rings covered with conductive synthetic resin having small coefficient of friction, allowing the contact pressure of brushes disposed in sliding contact with the slip rings to be kept low and the life duration of the slip rings to be prolonged. Further, no metal powder is produced when the brushes slide on the respective slip rings, and it is therefore possible to prevent the formation of unwanted insulating film.

Abstract: A rotation sensor functioning as both a rotation-angle sensor and a torque sensor is provided which, when applied to a steering sensor for an automobile, for example, permits reduction in the number of components and thus in the weight of the automobile and contributes to conservation of global environment. The rotation sensor has slip rings covered with conductive synthetic resin having small coefficient of friction, allowing the contact pressure of brushes disposed in sliding contact with the slip rings to be kept low and the life duration of the slip rings to be prolonged. Further, no metal powder is produced when the brushes slide on the respective slip rings, and it is therefore possible to prevent the formation of unwanted insulating film.

Abstract: A rotation sensor functioning as both a rotation-angle sensor and a torque sensor is provided which, when applied to a steering sensor for an automobile, for example, permits reduction in the number of components and thus in the weight of the automobile and contributes to conservation of global environment. The rotation sensor has slip rings covered with conductive synthetic resin having small coefficient of friction, allowing the contact pressure of brushes disposed in sliding contact with the slip rings to be kept low and the life duration of the slip rings to be prolonged. Further, no metal powder is produced when the brushes slide on the respective slip rings, and it is therefore possible to prevent the formation of unwanted insulating film.

Abstract: A rotation sensor functioning as both a rotation-angle sensor and a torque sensor is provided which, when applied to a steering sensor for an automobile, for example, permits reduction in the number of components and thus in the weight of the automobile and contributes to conservation of global environment. The rotation sensor has slip rings covered with conductive synthetic resin having small coefficient of friction, allowing the contact pressure of brushes disposed in sliding contact with the slip rings to be kept low and the life duration of the slip rings to be prolonged. Further, no metal powder is produced when the brushes slide on the respective slip rings, and it is therefore possible to prevent the formation of unwanted insulating film.