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Common mode choke and air conditioner

A common mode choke coil and air conditioner technology, which is applied in the direction of inductors, fixed inductors, transformer/inductor cores, etc., can solve the problem of limited adjustment of differential mode inductance of common mode choke coils

Pending Publication Date: 2020-04-14
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a common mode choke coil and an air conditioner to solve the technical problem of limited adjustment of differential mode inductance existing in the common mode choke coil in the prior art

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  • Common mode choke and air conditioner
  • Common mode choke and air conditioner

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0020] In the general-purpose common mode choke coil design, the leakage inductance, that is, the differential mode inductance, is generally actively increased, but the leakage inductance will not be too large. Because when the leakage inductance is too large, the magnetic core will be saturated after the circuit passes the power frequency working current, and the magnetic core will lose its magnetism. At this time, the common mode choke loses its inhibitory effect on the common mode signal. In order to solve the technical problem that the adjustment of the differential mode inductance in the ...

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Abstract

The invention provides a common mode choke and an air conditioner. The common mode choke comprises a magnetic core base body, a differential mode magnetic core, an inlet wire magnetic ring winding andan outlet wire magnetic ring winding, wherein the differential mode magnetic core is arranged on the magnetic core base body. The inlet wire magnetic ring winding and the outlet wire magnetic ring winding are wound on the differential mode magnetic core and the magnetic core base body, and the inlet wire magnetic ring winding and the outlet wire magnetic ring winding are connected through a lead.On the basis of the magnetic core base body, the differential mode magnetic core is additionally arranged so that magnetic core permeability of the common mode choke is inconsistent with that in a condition that only the magnetic core base body exists, and a differential mode inductance of the choke is additionally increased. As the additionally-arranged differential mode magnetic core and the magnetic core base body are not an integrated structure, the magnetic core base body of the common mode choke cannot be saturated even if a working current is very high.

Description

technical field [0001] The invention relates to the technical field of electronic components, in particular to a common mode choke coil and an air conditioner. Background technique [0002] At present, the development and use of inverter air conditioners are more and more valued by manufacturers and favored by consumers. Inverter air conditioners have a series of advantages, such as energy saving and environmental protection, easy control and adjustment, and high comfort. The use of frequency conversion technology will inevitably bring about the conversion of voltage and current amplitude and frequency, and high-frequency electromagnetic interference signals will be generated during the process. In order to suppress the influence of high-frequency signals on external circuits, many filter devices such as common mode choke coils, X capacitors, and Y capacitors are added to the power port. Common mode choke coils are widely used in circuit design because of their ability to s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F17/06H01F27/40H01F27/24
CPCH01F17/062H01F27/24H01F27/40H01F2017/0093
Inventor 于洪涛方小斌李修贤张煜文贺小林
Owner GREE ELECTRIC APPLIANCES INC
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