摘要:
A fan has an electronically commutated external-rotor motor serving to drive it. The motor has an internal stator (20) having a stator lamination stack (64) and a winding arrangement (66; 164, 166, 168, 170) associated with the stack. The internal stator has a central opening (149) for journaling a shaft (42). The fan further has a permanent-magnet rotor (28) separated from the internal stator (20) by a magnetically effective air gap (99). The internal stator (20) has a plastic coating (56, 58) that surrounds the stator windings, forms a bearing tube for journaling the shaft (42), and defines a wall element (62), implemented integrally with the plastic coating (56, 58), forming a compartment or cavity (108) for electrical components (112) of the motor. The plastic coating, bearing tube and compartment are preferably molded in a single working step.
摘要:
A fan has an electronically commutated external-rotor motor serving to drive it. The motor has an internal stator (20) having a stator lamination stack (64) and a winding arrangement (66; 164, 166, 168, 170) associated with said stack. The internal stator has a central opening (149) for journaling a shaft (42). The fan further has a permanent-magnet rotor (28) separated from the internal stator (20) by a magnetically effective air gap (99), which rotor is equipped on its outer side with fan blades (32) and comprises a shaft (42) journalled in the central opening (149) of the internal stator (20). Also provided is a plastic coating (56, 58) that extends into the central opening (149) of the internal stator (20) and forms there a bearing tube for the reception of bearing elements (48, 50) for journaling the shaft (42); also a wall element (62), implemented integrally with said plastic coating (56, 58), for a cavity (108) for the reception of electrical components (112) of the motor, which wall element (62) is provided on the side of the stator lamination stack (64) facing away from the rotor (28); and a fan housing (24) which is connected integrally, by means of connecting elements (134, 136), to the wall element (62) of the cavity (108) and which forms, together with the rotor (28), an air passage conduit (142) into which the fan blades (32) project.
摘要:
The invention relates to a method for monitoring the wear of a pair of hand pliers with which crimping elements can be pressed onto a workpiece and a particular degree of crimping mp, to be obtained by actuating the pliers, set using a presetting device. An arrangement is described for carrying out this method, as is a pair of hand pliers implementing the method. The method includes: counting each actuation of the hand pliers and linking to the degree of crimping mp that has been set; reading out a wear prognosis value Vt, from a memory, for the degree of crimping that has been set; determining a total wear value V by adding up the wear prognosis value Vt for each actuation; verifying whether the total wear value reaches or exceeds a defined threshold value VG, and issuing a calibration request if necessary.
摘要:
A circuit configuration for driving an electric motor includes a signal evaluation module, which stores a number of output patterns. An input pattern is specified, and as a function of the input pattern, one of the output patterns is output, by which the electric motor is driven.
摘要:
A circuit arrangement for a data processing system is configured to process data in a plurality of modules. The circuit arrangement is configured such that each module is provided with at least one clock pulse, a time base and a base of at least one additional physical variable. The circuit arrangement also comprises a central routing unit to which the plurality of modules are coupled and via which the plurality of modules can periodically exchange data amongst themselves, based on the time base and/or the base of other physical variables. Each module is configured independently and parallel to other modules of the plurality of modules in order to process data. The circuit arrangement is employed in a corresponding method.
摘要:
The invention relates to a method for the riveted fastening of an accessory to a plastics fuel tank (11, 12), the riveted fastening taking place at the time of the production of the tank by extrusion blow-moulding of a split tubular preform or two web-like extruded preforms made of thermoplastic material by using a multi-part die after or during the moulding of two complementary shells. The accessory (4) has been provided or is provided with at least one opening. The method according to the invention is characterized in that the riveted fastening takes place by means of at least one prefabricated rivet pin (9) made of thermoplastic material. The rivet pin has been obtained in a separate production process, for example by injection-moulding.
摘要:
The invention relates to a device for superimposing an image in the beam path of an aiming optics, having an at least partially transparent optical support element which is arranged in the beam path of the aiming optics and has at least one diffractive optical coupling element and at least one diffractive optical decoupling element, the at least one diffractive optical coupling element leading light of the image to be superimposed, which light is incident on said coupling element and is to be coupled in, through the optical support element to the at least one diffractive optical decoupling element for the purpose of superimposition with the beam path. The image to be superimposed is imaged into the beam path of the aiming optics by the at least one diffractive optical coupling element and the least one diffractive optical decoupling element.
摘要:
Semiconductor layer material, e.g., for use as an emitter material for a heterojunction solar cell, is formed as a stack made of multiple first layers and second layers alternatingly situated one on top of the other. The first layers is made of an elementary, polycrystalline semiconductor, and the second layer is made of a substoichiometric electrically insulating compound, e.g., an oxide, carbide, or nitride, of the semiconductor. The interfaces between the first layers and the second layers are irregularly structured by a temperature treatment in such a way that microcontact areas are formed between adjacent first layers, which are separated from one another by a second layer.
摘要:
A method and arrangement reduce an interference which is caused in a received signal from a reception antenna by a transmitted signal with transmitted data which are distributed stochastically over time from a transmission antenna which is physically close by. The transmission of the transmitted signal from the transmission antenna is activated and deactivated by a control signal from a control circuit over time such that reception dropouts in the received signal which are caused by the interference are corrected by an error correction unit for the received signal.
摘要:
The invention relates to a conversion film for a light-emitting element, said film containing a conversion pigment. The invention further relates to a method for producing the conversion film, to the use thereof and to a light-emitting element equipped with said conversion film.