CN206370326U - A kind of mixed magnetic circuit inductor - Google Patents

Abstract

The utility model discloses a kind of mixed magnetic circuit inductor, including toroidal coilses and column type magnet；The column type magnet is located at the medial center position of the toroidal coilses, and its both ends of the surface is docked composition mixing magnetic core with the toroidal coilses interior sidewall surface；Coil is wound with the column type magnet；The toroidal coilses are constituted by more than two pieces ring-like single magnets are stacked；The utility model is arranged on the madial wall center of toroidal coilses by the way that the column type magnet for constituting mixing magnetic core is docked, the work efficiency of inductor can be effectively improved, reduce temperature rise, with excellent anti-saturation and AC DC biasing abilities, manufacture size and cost are minimized, and bonding composition toroidal coilses can be stacked by the ring-like single magnet of varying number, meet demand of the different occasions to operating power.

Description

A kind of mixed magnetic circuit inductor

Technical field

The utility model is related to inductor, especially a kind of mixed magnetic circuit inductor.

Background technology

Traditional coil class inductance component, is typically made up of EE types magnetic core or ring type magnetic core, its anti-saturation and AC-DC biasings Scarce capacity；And the magnet of composition magnetic core is generally used and is made into integration, core center post combination corner magnetic flux distribution Height, the easily local magnetic saturation of appearance, and Localized wear are too high, so as to reduce the property indices such as the loss of inductor.

The content of the invention

In order to overcome the deficiencies in the prior art, the utility model provides a kind of mixed magnetic circuit inductor.

The utility model solves the technical scheme that its technical problem used：

A kind of mixed magnetic circuit inductor, including toroidal coilses and column type magnet；The column type magnet is located at described ring-like The medial center position of magnet, and its both ends of the surface is docked composition mixing magnetic core with the toroidal coilses interior sidewall surface；The post Coil is wound with type magnet；The toroidal coilses are constituted by more than two pieces ring-like single magnets are stacked.

The ring-like single magnet is closure hollow.

The cross section of the ring-like single magnet is rectangle.

The ring-like single magnet can be bonded for the U-shaped single magnet docking of two pieces of openings.

The column type magnet can be formed for multistage column type single magnet bonding, and air gap is formed between its joint face.

It is additionally provided with coil rack；The coil rack includes being arranged the cylinder portion of the column type magnet and positioned at cartridge The supporting plate of the both sides correspondence coil size.

The supporting plate is provided with the positioning bar for being resisted against the toroidal coilses opening wall.

The supporting plate end face for protruding the toroidal coilses is provided with heat emission hole.

The beneficial effects of the utility model are：Toroidal coilses are arranged on by the way that the column type magnet for mixing magnetic core docking will be constituted Madial wall center, can effectively improve the work efficiency of inductor, reduce temperature rise, it is inclined with excellent anti-saturation and AC-DC Ability is put, manufacture size and cost are minimized, and it is ring-like to be stacked bonding composition by the ring-like single magnet of varying number Magnet, meets demand of the different occasions to operating power.

Brief description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

Fig. 1 is the structural representation of magnetic core；

Fig. 2 is the front view of magnetic core；

Fig. 3 is structural representation of the present utility model；

Fig. 4 is Fig. 3 structure decomposition figure.

Embodiment

Toroidal coilses 1 and column type magnetic that reference picture 1, Fig. 2, a kind of mixed magnetic circuit inductor, including unlike material are made Body 2；The column type magnet 2 is located at the medial center position of the toroidal coilses 1, and makes its both ends of the surface and the toroidal coilses 1 Interior sidewall surface docking constitutes mixing magnetic core；Coil 5 is wound with the column type magnet 2；The toroidal coilses 1 are by more than two pieces rings The stacked composition of type single magnet 3.

The madial wall center that toroidal coilses 1 are arranged on by the way that column type magnet 2 is docked constitutes mixing magnetic core, it is possible to increase electricity The work efficiency of sensor, reduces temperature rise, and with excellent anti-saturation and AC-DC biasing abilities, manufacture size and cost are able to Reduction, and the various sizes of toroidal coilses 1 of bonding composition can be stacked by the ring-like single magnet 3 of varying number, meet different fields Close the demand to operating power.

The ring-like single magnet 3 is closure hollow, can be maximized simultaneously in the winding space for meeting column type magnet 2 Cost is minimum.

It is preferred that the cross-sectional area of ring-like single magnet 3 is impartial, avoid the magnetic flux density of magnet thin location is too high from causing overheat.

The cross section of the ring-like single magnet 3 can be rectangle, circular or ellipse, preferably rectangular, the ring-like single magnetic of polylith The stacked fixation of body 3 is more easy, occupies little space.

Be wound with the column type magnet 2 of coil 5 be placed on closure toroidal coilses 2 in when it is more difficult, for the simplicity of assembling, It can be two pieces of U-shaped single magnets 31 of opening by the ring-like single magnet 3, enable toroidal coilses 2 above and below or left and right is spliced Mode is bonded.

In addition, the column type magnet 2 or the bonding of multistage column type single magnet 21 are formed, form multiple between its joint face Air gap 4, and the space of air gap 4 is smaller, can significantly reduce magnetic leakage phenomenon, improves the efficiency of inductor.

Reference picture 3 and Fig. 4, it is of the present utility model for the ease of the assembling positioning of each part to ensure the efficiency of inductor Mixed magnetic circuit inductor can also be provided with coil rack 7 in addition to the stitch base 6 for being easy to wiring, and coil rack 7 includes being arranged post The cylinder portion 71 of type magnet 2 and the supporting plate 72 positioned at the both sides of the cylinder portion 71 correspondence size of coil 5.

During assembling, column type magnet 2 is first filled in the cylinder portion 71 of coil rack 7, then the winding coil 5 in coil rack 7, most Load together in the opening of toroidal coilses 1 afterwards, and the positioning bar 721 in supporting plate 72 is resisted against the toroidal coilses 1 and be open Wall realizes relative positioning, it is ensured that the positional distance between column type magnet 2 and toroidal coilses 1, assembles more easy.

And the working condition of coil 5 is generated heat, heat emission hole can be provided with the end face of supporting plate 72 for protruding the toroidal coilses 1 722, enable coil sections 5 directly and air contact, it is to avoid the overheat of coil 5 causes magnetic circuit unstable.

After mixed magnetic circuit inductor of the present utility model, appropriate number of ring can be selected according to real work situation The stacked commonality for constituting toroidal coilses 1, improving magnet of type single magnet 3, reduces R＆D and production input cost, and be easy to inner tube Reason.

Claims (8)

1. a kind of mixed magnetic circuit inductor, it is characterised in that：Including toroidal coilses (1) and column type magnet (2)；The column type magnetic Body (2) is located at the medial center position of the toroidal coilses (1), and makes its both ends of the surface and the toroidal coilses (1) interior sidewall surface Docking constitutes mixing magnetic core；Coil (5) is wound with the column type magnet (2)；The toroidal coilses (1) are ring-like by more than two pieces The stacked composition of single magnet (3).

2. mixed magnetic circuit inductor according to claim 1, it is characterised in that：The ring-like single magnet (3) is closure mouth Font.

3. mixed magnetic circuit inductor according to claim 1, it is characterised in that：The cross section of the ring-like single magnet (3) For rectangle.

4. mixed magnetic circuit inductor according to claim 1, it is characterised in that：The ring-like single magnet (3) can be two pieces It is bonded with the U-shaped single magnet of upper shed (31) docking.

5. mixed magnetic circuit inductor according to claim 1, it is characterised in that：The column type magnet (2) can be multistage post Type single magnet (21) bonding is formed, and air gap (4) is formed between its joint face.

6. the mixed magnetic circuit inductor according to claim 1 to 5 any claim, it is characterised in that：It is additionally provided with coil Skeleton (7)；The coil rack (7) includes being arranged the cylinder portion (71) of the column type magnet (2) and positioned at cartridge (71) The supporting plate (72) of both sides correspondence coil (5) size.

7. mixed magnetic circuit inductor according to claim 6, it is characterised in that：The supporting plate (72) is provided with and is resisted against institute State the positioning bar (721) of toroidal coilses (1) opening wall.

8. mixed magnetic circuit inductor according to claim 7, it is characterised in that：Protrude the described of the toroidal coilses (1) Supporting plate (72) end face is provided with heat emission hole (722).