A kind of resonant inductance
Technical field
The utility model relates to a kind of resonant inductances.
Background technique
Traditional resonant inductance is made of FERRITE CORE (PQ type, EE type magnetic core etc.) and Ritz line winding group.Ferrite magnetic
Core μ value is very high to be needed to increase very big air gap when doing resonant inductance, generallys use distributed air gap.There is leakage field generation at air gap
The excessively high inductance performance of inductor wire packet temperature rise is caused to be deteriorated.And it is influenced by air gap leakage field, line packet need to be isolated at air gap, cannot be close
It is adjacent to magnetic core, the dosage of litz wire, which increases, when coiling line packet consumes more costs.
Utility model content
In view of the deficiencies of the prior art, the utility model is intended to provide a kind of resonant inductance, and center pillar magnetic core is metal powder magnetic
Core, bottom plate and corner are FERRITE CORE, and stem metal-powder-core magnetic core μ value is low to be not necessarily to when doing resonant inductance increase air gap, inductance
Magnetic leakage free generates, and line packet does not have the excessively high problem of temperature, improves overall performance.
The utility model is achieved through the following technical solutions.
A kind of resonant inductance, the first magnetic core and the second magnetic core being oppositely arranged including two, first magnetic core and second
Core structure is identical, and first magnetic core includes that center pillar magnetic core, the protrusion of bottom plate, protrusion in the middle part of bottom plate are set to bottom plate or so
The corner of two sides, the bottom plate and corner are FERRITE CORE, and the center pillar magnetic core is metal powder magnetic core, the center pillar magnetic core
It is equipped with winding.
Preferably, the bottom plate and corner are an integral structure.
Preferably, the winding is Ritz line winding group.
Preferably, the center pillar magnetic core of the center pillar magnetic core of first magnetic core and the second magnetic core is bonded air-gap-free.
Preferably, the either flush of the center pillar magnetic core and the corner.
Preferably, the center pillar magnetic core is cylinder.
Compared with prior art, the utility model has the advantages that: the first magnetic core and the second magnetic core are by FERRITE CORE and gold
Belong to the mixing of powder magnetic core to constitute, center pillar magnetic core is metal powder magnetic core, and bottom plate and corner are FERRITE CORE, stem metal-powder-core magnetic core
μ value is low without increasing air gap when doing resonant inductance, and inductance magnetic leakage free generates, and line packet does not have the excessively high problem of temperature, improves whole
Performance;Winding is Ritz line winding group, and line packet can closely be adjacent to magnetic core when coiling, and the dosage of litz wire is reduced, reduce inductance at
This.
Detailed description of the invention
Fig. 1 is the perspective view of the utility model;
Fig. 2 is the utility model without winding main view;
Fig. 3 is the first magnetic core of the utility model top view;
In figure: 1, the first magnetic core, the 2, second magnetic core, 3, winding, 101, bottom plate, 102, center pillar magnetic core, 103, corner.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but not as the utility model
It limits.
As shown in Fig. 1 Fig. 3, a kind of resonant inductance, the first magnetic core 1 and the second magnetic core 2 being oppositely arranged including two, institute
State that the first magnetic core 1 is identical as 2 structure of the second magnetic core, first magnetic core 1 includes that bottom plate 101, protrusion are set to 101 middle part of bottom plate
Center pillar magnetic core 102, protrusion are set to the corner 103 of 101 left and right sides of bottom plate, the top of the center pillar magnetic core 102 and the corner 103
Face is concordant, and the center pillar magnetic core 102 of the center pillar magnetic core 102 of first magnetic core 1 and the second magnetic core 2 is bonded air-gap-free, the bottom plate
101 and corner 103 be FERRITE CORE, the center pillar magnetic core 102 is metal powder magnetic core, and the center pillar magnetic core 102 is equipped with
Winding 3.
As preferred embodiment, the bottom plate 101 and corner 103 are an integral structure.
As preferred embodiment, the winding 3 is Ritz line winding group.
As preferred embodiment, the center pillar magnetic core 102 is cylinder.
The foregoing is merely the utility model preferred embodiment, be not intended to limit the embodiments of the present invention and
Protection scope should can appreciate that all in the utility model specification and diagram to those skilled in the art
Hold made equivalent replacement and obviously change obtained scheme, the protection model of the utility model should all be included in
In enclosing.