CN201562574U

CN201562574U - Split-type inductor

Info

Publication number: CN201562574U
Application number: CN2009202614290U
Authority: CN
Inventors: 陈国祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-11
Filing date: 2009-12-11
Publication date: 2010-08-25
Anticipated expiration: 2019-12-11

Abstract

The utility model relates to an inductor, in particular to a split-type inductor, which can effectively enhance covered area of coils, reduce magnetic leakage and effectively promote inductance efficiency. The split-type inductor comprises a coil holder and iron cores; an intermediate hole is arranged in the center of the coil holder; coils can be wound in a slot on the periphery of the intermediate hole; and central cylinders which can be sleeved on the coil holder are arranged in the middle of the iron cores. The difference points are that an annular side wall is arranged on the periphery of the iron cores; an opening in relatively small size is arranged on the annular side wall; a protruded wire holder is arranged on the coil holder and can be outwards extended out of the opening on the annular side wall; and a stitch is arranged on the wire holder. When the split-type inductor is used and when the two iron cores are inserted into the intermediate hole of the coil holder relative to the central cylinders of the iron cores, the central cylinders of the iron cores are matched with the side wall of an outer ring to form a magnetic loop on the periphery of the slot of the coil holder. The coils are mostly covered by the outer side wall of the iron cores, the magnetic leakage is greatly decreased, and the inductance efficiency is effectively enhanced.

Description

A kind of split type inductor

Technical field

The utility model relates to a kind of inductor, and particularly a kind of can effectively the enhancement coats area, reduces magnetic leakage, effectively promotes the split type inductor of inductance efficient coil.

Technical background

Inductor is used very extensive as a kind of basic electronic component.And along with the sustainable development of telecommunications industry, also more and more higher for the requirement of electronic devices and components such as inductor.Inductance efficient is high, loss is low.Inductor on the present market, more is to adopt to divide body structure, promptly includes coil holder and iron core; Coil holder central authorities are provided with interstitial hole, but in the wire casing of the periphery of this interstitial hole winding around then; But in the middle of iron core, be provided with suit coil holder center pillar thereon, then be provided with column or sidewall at the iron core periphery; And when two iron cores relative, its center pillar is inserted the interstitial hole of coil holder after, the center pillar of iron core cooperates with the column in the outside or sidewall, will form a magnetic loop at the wire casing periphery of coil holder.

Adopt the inductor of this structure, because the column or the sidewall of iron core periphery are less for the coverage degree of coil, cause most of coil to expose outside, leakage field is serious, and inductance efficient is not high.For this reason, a lot of in the industry factories and engineers and technicians have proposed a lot of improvement projects.Just put down in writing a kind of improvement project among the Chinese patent literature ZL200420037177.0, but there are the problems referred to above equally in this scheme.

Summary of the invention

At above-mentioned the deficiencies in the prior art, the utility model provides a kind of novel split type inductor, can effectively promote coil is coated area, reduces magnetic leakage, effectively promotes inductance efficient.

For realizing above-mentioned technical purpose, this utility model adopts following technical scheme:

A kind of split type inductor includes coil holder and iron core; Coil holder central authorities are provided with interstitial hole, but in the wire casing of this interstitial hole periphery winding around then; But in the middle of iron core, be provided with suit coil holder center pillar thereon, its difference is, be provided with a ring-side wall at the iron core periphery, on ring-side wall, have the opening of a reduced size, then be provided with outstanding wire holder on the coil holder, can be protruding from the opening part on the ring-side wall, wire holder is provided with stitch.

The utility model in use, when two iron cores after relatively its center pillar inserts the interstitial hole of coil holder, the center pillar of iron core cooperates with the outer shroud sidewall, will form a magnetic loop at the wire casing periphery of coil holder.The coil then overwhelming majority is coated by the lateral wall of iron core, and magnetic leakage will reduce, effectively promote inductance efficient greatly.

Further, described center pillar height is lower than outer shroud sidewall height, after two iron core assemblings, forms the gap between the center pillar, helps anti-big electric current, is difficult for saturated.And can between center pillar, put glue, to strengthen fixing two iron cores.

Further, described center pillar can be circular or square.Described ring-side wall can be circular or square.

Further, inductance coil is vertical or is horizontal.

Description of drawings

Fig. 1 is the decomposition texture schematic diagram of the utility model inductor preferred embodiment.

Fig. 2 is the combining structure schematic diagram of Fig. 1.

Fig. 3 is the structural representation of another embodiment of the utility model.

Fig. 4 is the combining structure schematic diagram of Fig. 3.

Embodiment

Understanding and realization the utility model for the ease of persons skilled in the art are further described embodiment of the present utility model below in conjunction with accompanying drawing.

Shown in Figure 1 is a preferred embodiment of the split type inductor of the utility model.It comprises the two large divisions: one is coil holder 2, and coil holder central authorities are provided with circular interstitial hole 21, but in the wire casing 22 of this interstitial hole periphery winding around; And the coil holder below is provided with an outstanding wire holder 23; Another part is two symmetrical iron cores 1, but in the middle of iron core 1, be provided with a suit coil holder circular center pillar 11 thereon, be provided with a ring-side wall 12 at the iron core periphery, 12 of center pillar 11 and ring-side walls can ccontaining coil holder 2 and coils, have the opening 13 of a reduced size on ring-side wall 12, the wire holder 23 of coil holder 2 belows can be protruding from the opening part on the ring-side wall 12 13.

Fig. 2 is the combining structure schematic diagram of Fig. 1.Two iron cores 1 are fixed therein coil holder 2 by two clip 3 clampings assemblings.This embodiment is vertical inductor.

Shown in Figure 3 is the decomposition texture schematic diagram of another embodiment of the present utility model, is a kind of horizontal inductor that is.Fig. 4 is its combining structure schematic diagram

Claims

1. a split type inductor includes coil holder and iron core; Coil holder central authorities are provided with interstitial hole, but in the wire casing of this interstitial hole periphery winding around then; But in the middle of iron core, be provided with suit coil holder center pillar thereon, it is characterized in that, be provided with a ring-side wall, an opening is arranged on ring-side wall, then be provided with outstanding wire holder on the coil holder at the iron core periphery, can be protruding from the opening part on the ring-side wall.

2. split type inductor according to claim 1 is characterized in that, described center pillar height is lower than outer shroud sidewall height, after two iron core combinations, forms the gap between the center pillar.

3. split type inductor according to claim 1 and 2 is characterized in that, described center pillar is circular or square.

4. split type inductor according to claim 1 and 2 is characterized in that, described ring-side wall is circular or square.

5. split type inductor according to claim 1 and 2 is characterized in that, inductance coil is vertical or is horizontal.