摘要:
The invention relates to a thermal fuse in a circuit structure, particularly a punched grid, having a plurality of circuit areas, having the circuit structure with connections sited (9) and having a fusible element (3), which is electrically and mechanically connected to the connection sites (9) of the circuit structure, the material of the fusible element (3) having a melting point, in order to melt at an ambient temperature greater than the melting point, such that material of the fusible element (3) collects at the connection sites (9) and the electrical connection formed by the fusible element (3) breaks.
摘要:
An electric-motor drive mechanism is proposed, with an electric motor (12) that has a brush holder (16, 116, 216) for containing brushes (15a, 15b) and at least one magnetic field sensor (18a, 18b, 118a, 218a) for detecting the magnetic field of a magnetic wheel (19) non-rotatably connected to the motor armature shaft (32) and an electronics housing (20) for containing an electronics mounting plate (24) for a set of motor output and/or control electronics. The electronics mounting plate (24, 124, 224) is disposed outside an electric motor pole pot housing (26) on a support (28, 128, 228) formed onto the brush holder (16, 116, 216) and that the at least one magnetic field sensor (18a, 18b, 118, 218) directly contacts the control electronics on the electronics mounting plate (24, 124, 224) by means of first inserted strip conductors (30a-1 . . . 30a-3, 30b-1 . . . 30b-3, 130, 230) that are guided in bundles and are at least partially integrated into the brush holder (16, 116, 216).
摘要:
A drive device has an electric motor having a rotor, a rotor shaft rotatable by the rotor, a ring magnet which is rotatable during the operation of the electric motor and having at least one North pole and one South pole, a hall sensor oriented to the ring motor, the ring motor being rotatably supported at a distance from the rotor shaft near the rotor shaft, and a drive wheel arranged on the rotor shaft, the ring magnet being in a driving connection with the drive wheel, the drive wheel having a diameter which is a greater than a diameter of the ring magnet.
摘要:
The invention relates to a thermal fuse in a circuit structure, particularly a punched grid, having a plurality of circuit areas, having the circuit structure with connections sites (9) and having a fusible element (3), which is electrically and mechanically connected to the connection sites (9) of the circuit structure, a material of the fusible element (3) having a melting point, in order to melt at an ambient temperature greater than the melting point, such that material of the fusible element (3) collects at the connection sites (9) and the electrical connection formed by the fusible element (3) breaks.
摘要:
The invention relates to a fan system for a controllably cooling a vehicle internal combustion engine comprising an electric fan motor and a control unit for controlling said fan motor, wherein said control unit controls the fan motor according to a regulation correcting variable dependent on a desired cooling power, the control unit is constructed in such a way that it controls the fan motor independently of the desired cooling power at a determined moment with a regulation-correcting variable increased with respect to a correcting variable for a predetermined space of time.
摘要:
The invention relates to a triggering device (1) for a thermal fuse comprising an actuator (11), which is designed to trigger at a threshold temperature, and a conductive bridge element (6) that is attached and connected to multiple connector points (9) exclusively by means of detachable connecting elements (10) for current flow. According to the invention the connecting elements (1) fully detach the bridge element (6) when a threshold temperature is reached or exceeded so that, in case the actuator (11) is triggered, the bridge element (6) is detached from the connecting elements (10) in order to interrupt the current flow.
摘要:
The invention relates to a fusible alloy element (1), in particular for producing a thermal fuse, comprising a fusible element (2), which is made of a material that melts at a trigger temperature, and a support layer (4) on a surface in at least one contacting area of the fusible alloy element (1). According to the invention, the melting temperature of the material of the support layer (4) is greater than the trigger temperature, wherein the material of the support layer (4) is selected such that it dissolves in its solid status in the melted material of the fusible element (2)
摘要:
The invention relates to an error recognition device for detecting an error in an electrical component (1), comprising a first detector (12), a second detector (13) for detecting a parameter characteristic of current flows, and a triggering unit (10) for interrupting a current flow through the electrical component (1) by means of a switch (S2), depending on the parameter characteristic of the detected current flows.
摘要:
The invention relates to a fan system for a controllably cooling a vehicle internal combustion engine comprising an electric fan motor and a control unit for controlling said fan motor, wherein said control unit controls the fan motor according to a regulation correcting variable dependent on a desired cooling power, the control unit is constructed in such a way that it controls the fan motor independently of the desired cooling power at a determined moment with a regulation-correcting variable increased with respect to a correcting variable for a predetermined space of time.
摘要:
A circuit configuration for operating an electric motor is described, the circuit configuration containing a timer. As a function of a first differential signal between a setpoint signal and an actual value signal, a regulator supplies a first switch signal for feeding current to the electric motor. Simultaneously, the timer is started which limits the current feed signal to a specified maximum time. A detection system detects a change in the setpoint signal and thereupon outputs a second switch signal that also starts the timer and is able to trigger the current feed to the electric motor. The circuit configuration both protects the electric motor from a thermal overload and also makes it possible to feed current to the electric motor if a setpoint changes. The circuit configuration is suitable to be used in a variable speed drive.