Integrated magnetic field structure capable of carrying out electromagnetic induction feedback filtration and alternative demagnetization
An electromagnetic induction and feedback filtering technology, applied in the electromagnetic field, can solve problems such as large volume, lower power supply efficiency, and increased power supply internal resistance
Inactive Publication Date: 2009-09-02
吴红兵
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(2) The volume is larger, the weight is heavier, there is a certain value of DC resistance and heat loss, and most of them have iron cores
The use of this type of inductance in the circuit will first increase the internal resistance of the power supply, reduce the efficiency of the power supply and the dynamic response speed of the power supply (relative to the load circuit); secondly, it will increase the volume and weight of the power supply, and it is easier to occur due to the iron core. The phenomenon of magnetic saturation (generating electromagnetic noise and deteriorating filtering effect), and increasing the radiation electromagnetic interference to the surrounding space affects other circuits; finally, the cost is also higher
These shortcomings cause the traditional inductive power filter itself to be a reducer, energy consumer, and a source of interference that emits electromagnetic radiation, and hinders the passage of instantaneous large currents.
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[0023] Figure 1 to Figure 3 The first embodiment of the present invention shown in the first embodiment of the present invention to the electric wire 3 electromagnetic induction feedback filter structure, by being arranged on the magnet 1 that is arranged around the electric wire 3, is fixedly arranged and encloses the annular space to form, and the magnet is two magnetic poles inner and outer arcs The block magnet on surface arranges four sheets on the transverse section of the current conducting wire 3, and there are eight pieces along the longitudinal (current direction) magnet of the current conducting wire 3, and each magnet sheet is all arranged adjacently for antimagnetic poles. The outside of the integrated magnet structure surrounds the magnetic shielding iron shell 5 .
[0024] Figure 4 to Figure 6 The structure of the electromagnetic induction feedback filter to the current conducting wire 3 shown in the second embodiment of the present invention is composed of a...
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The invention relates to an integrated magnetic field structure capable of carrying out electromagnetic induction feedback filtration and alternative demagnetization for an electrified lead in a power supply part of an electronic and electric apparatus. The integrated magnetic field structure consists of at least three magnets arranged around the electrified lead needing the electromagnetic induction feedback filtration. The operating principle of the integrated magnetic field structure is similar with a synchronous electric power generation process of a permanent magnetism generator. The integrated magnetic field structure has the advantages that: (1) through the electromagnetic induction feedback filtration for the electrified lead, the integrated magnetic field structure can inhibit a bad harmonic current produced by elements in the electric apparatus, reduce the internal resistance of power supply, and improve the dynamic response rate of the power supply; and compared with an induction filtration method having an internal resistance and a delay reversal electric potential, the integrated magnetic field structure obviously has high reliability, high efficiency and low cost; and (2) the integrated magnetic field structure has the efficient demagnetization action of alternating magnetization on liquid or gas.
Description
Technical field [0001] The invention belongs to the field of electromagnetic technology, and in particular relates to an integrated magnetic field structure capable of feedback filtering and alternating degaussing of the electromagnetic induction generated by the energized wire in the power supply part of an electronic appliance. Background technique [0002] With the emergence of a large number of advanced electronic appliances in today's society, they put forward more stringent requirements for the power supply of the machine and electromagnetic interference (EMI), such as requiring high reliability, high efficiency, high power, small size and light weight, and low electromagnetic interference radiation. , small internal resistance and low output DC ripple, low cost and so on. This brings great difficulties and challenges to traditional power supply design work. At present, most of the AC power supply and rectified DC (that is, pulsating DC) filtering in electronic applia...
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IPC IPC(8): H01F37/00H01F27/24H01F13/00H01F27/36H02M1/12H02M1/14
Inventor 吴红兵
Owner 吴红兵