摘要:
A circuit breaking device includes a socket provided on the way of a circuit, a plug movably disposed in a direction that the plug is inserted into and removed from the socket, an explosive exploding in response to a trigger signal given thereto to thereby drive the plug by explosion force to move advanced, and the plug which is normally disposed in a retreated position at where the plug is in a conductive state with said socket, while the plug is in a non-conductive state with said socket when the plug moves to an advanced position.
摘要:
A circuit breaker includes, a cylindrical portion having a gunpowder and a exploding unit for exploding the gunpowder by application of electric power to the gunpowder, the cylindrical portion being provided with an opening at at least one end; a base material securing the cylindrical portion, at least the surface of which is made of insulating material; a conductor fixed to the base material and having a break portion located at a position opposite to the opening of the cylindrical portion, the break portion being broken by explosive force of the gunpowder; a first metallic cover portion covering the cylindrical portion and the break portion; and a second metallic cover portion covering the base material from an opposite side to the cylindrical portion, wherein the first and second cover portions are fixed to the base material by directly connecting the first and second cover portions each other.
摘要:
A bus bar is connected between a battery post and a stud bolt to which an electric power supply wire is connected. An opening is provided in a housing in which an explosive sealing portion is accommodated. Just before the opening, a broken portion of the bus bar is provided. In the broken portion, a recess portion is formed, and this portion of the broken portion is thin. On both sides of the broken portion, a cutout portions are formed. In case of emergency, electric current generates in a trigger wire, and an explosive in the explosive sealing portion is exploded. An explosive force is directed to the opening of the housing, and the broken portion located just before the opening receives the explosive force forward. Due to the foregoing, the recess portion is broken and both broken pieces are bent at the cutout portions and opened being separated from each other. In this way, an electric power supply circuit is shut off.
摘要:
An apparatus for detecting a trouble location in a wire harness can easily detect a location of any trouble such as breakage or short circuit in electric wires in a wire harness and in particular can detect the trouble location by way of a simple structure utilizing a portion with a shield function. In the detecting apparatus, a pulse signal is transmitted in electric wires (2) in a wire harness (1), in which a trouble location is to be detected, and in a sensing line juxtaposed along the electric wires (2) at their ends. A measuring device (20) receives a reflected wave from a transmitted wave and measures a difference in time between the transmitted wave and the reflected wave. A distance from a transmitting end point to a trouble location point is determined in accordance with the difference in time and a signal propagation velocity. Each electric wire (2) in the wire harness (1) is a single wire having no splice portion and a shielded wire having a conductive shield sheath (10). The wire harness (1) is provided with a connection part for connecting each electric wire (2) and the shield sheath (10) to the measuring device (20).
摘要:
A method for detecting a trouble location in wire harnesses can easily detect a position of trouble such as breakage, short circuit, or the like in the wire harnesses without bringing enlargement and complication into the wire harnesses. This method includes the steps of: setting each of electric wires (2) in a main line part (4) and a branch line part (5) of a wire harness (1) as a sensing line, the wires (2) being juxtaposed to each other in the respective parts (4, 5); transmitting a pulse wave in a measuring line of a trouble electric wire in the wire harness and the sensing line corresponding to the measuring line at their ends by a pulse generating unit (11); receiving a pulse wave reflected at a trouble point and measuring a difference in time between the transmitted pulse wave and the reflected pulse wave by a synchroscope (12); and computing a distance from a measuring point to the trouble point in accordance with the difference in time and a pulse propagation velocity by a computing unit (13).
摘要:
An electric power distribution system is shown where even if supply of electric power is interrupted, other normal electric part systems can be operated. A number of electric power distribution portions are supplied with electric power through at least two systems of electric power lines. The amounts of electric currents in the two systems of the trunk lines respectively are detected and monitored by a sensor and each current detection portion. Moreover, a controller controls a switch corresponding to a sensor which has detected an abnormal value among output values from a number of current detection portions to make non-conductive the trunk line from which the abnormal value has been detected. If a fault takes place in, for example, the trunk line between the electric power distribution portions, the two ends of the trunk line respectively are disconnected by the switch. Moreover, electric power is supplied from another electric power distribution portion through the residual electric power line of the two systems of the electric power lines.
摘要:
A microcomputer 4 responds to an instruction signal to turn the load L on or off to control the FET 2 through the drive circuit 5. The microcomputer 4 samples an electric current I.sub.L which is supplied through the A/D converter 6 and which flows in the load L at every predetermined sampling time T.sub.S and subjects the sampled electric current I.sub.L to a comparison with a known rated current value I.sub.R for the load L. When I.sub.L .gtoreq.I.sub.R is satisfied, the microcomputer 4 starts counting energizing time T. When the accumulated value of I.sub.L .times.T.sub.S is enlarged to a predetermined value S.sub.O, the microcomputer 4 turns the FET 2 off. When the detected electric current I.sub.L is larger than an upper limit I.sub.O (>I.sub.R) determined previously, the microcomputer 4 immediately turns the FET 2 off through the drive circuit 5.
摘要:
The invention enables an electronic system, which is conveniently operated by a user, to be easily installed in a vehicle, such as an automobile, etc. A structure of electric equipment for a vehicle is provided, wherein vehicle-side connectors are disposed in a plurality of places in the vehicle. Constituent elements of an electronic system used in the vehicle are partly combined with a detachable connector capable of being connected to any one of the vehicle-side connectors to thereby form a detachable unit. Electronic system constituent elements in the detachable unit and electronic system constituent elements provided in the vehicle body are connected to each other to construct a new electronic system when the detachable connection is connected to any one of the vehicle-side connectors. As a result, a user's favorite detachable unit can be used in a user's favorite position.
摘要:
To realize a force control robot including a force sensor having a high sensitivity and a high rigidity, an end effector (1) including finger modules (100) for gripping a part is coupled to a robotic arm (3) through the intermediation of a force sensor (2), and the force sensor (2) detects an external force applied to the finger modules (100) based on displacement of the end effector (1) that occurs with a rotation center (C) on a longitudinal axis (Z) of the robotic arm (3) as a fulcrum, to thereby correct an operation of the robotic arm (3). An end effector housing (109) supports motors (105) for driving the finger modules (100) at a position on the robotic arm side with respect to the rotation center (C) of the force sensor (2). Accordingly, the rigidity of the sensor can be increased.
摘要:
A detecting device for detecting the presence or absence of a sheet contained in a sheet containing portion includes a rotatable arm portion brought into contact with the sheet contained in the sheet containing portion, a stopper portion rotatable in association with the arm portion for determining the position of the arm portion when there is no sheet in the sheet containing portion and whose rotation is regulated when there is no sheet in the sheet containing portion. And when the sheet in a conveying path is to be pulled out, the arm portion is retreated from a position determined by the stopper portion due to the pressure of the sheet being pulled out.