CN206312711U - A kind of tank shape amorphous band iron core - Google Patents

Abstract

The utility model provides a kind of tank shape amorphous band iron core, including stem, the stem includes stem internal layer, stem intermediate layer and the stem outer layer that ring sets successively from inside to outside, the stem internal layer and stem outer layer are formed by broadband winding, the stem intermediate layer is by silt form around forming, the broadband and arrowband are amorphous band, and the broadband width of the width more than the arrowband, the bottom surface of the stem internal layer, stem intermediate layer and stem outer layer is in the same plane.The thickness of different in width is that 0.018 0.04mm nano-crystalline thin ribbons are fabricated to pot core by special equipment and frock by winding by the utility model, and manufacture craft is more succinct compared with powder core；Band has the saturation magnetic induction of 1.25T around nanocrystalline iron core, its high-frequency loss (<The 1/3 of FERRITE CORE 1000KHz) is just corresponded to, the high frequency iron loss of pot core is reduced.

Description

A kind of tank shape amorphous band iron core

Technical field

The utility model is related to core technology field, more particularly to a kind of tank shape amorphous band iron core.

Background technology

Powder core is a kind of soft magnetic materials for mixing compacting with dielectric by ferromagnetism powder.Due to ferromagnetism Grain very little (what is used under high frequency is 0.5~5 micron), and is separated by non magnetic electrical insulating film material, therefore, on the one hand can be every It is vortexed absolutely, material is applied to upper frequency；On the other hand due to the channel effect between particle, cause material that there is low permeability And permanent permeance；Again because particle size is small, substantially there is no to collect skin phenomenon, magnetic conductivity with frequency change also just more Stabilization.It is mainly used in high-frequency inductor.The magnetic electricity performance of powder core depend primarily on the permeability of powder material, the size of powder and Shape, their fill factor, the content of dielectric, briquetting pressure and Technology for Heating Processing etc..The production process one of powder core As include：Former material obtains-and broken-ball milling-precompressed-pre-burning-is broken-and secondary ball milling-drying-screening-grain sorting-granularity matches somebody with somebody Than-Passivation Treatment-chemical reagent mixing-molding-heat treatment-consolidation process-grinding-insulation-finished product.Manufacturing process technique is answered It is miscellaneous, time-consuming, consume energy also many, but core shapes species is abundant, there is O, E, I, U, EC, ETD shape, square (RM, EP, PQ), tank shape (PC, RS, DS) and circle etc..

Nano-crystalline thin ribbon employs the super chilling solidification technology that cooling velocity is about 1,000,000 degree per second, from molten steel to thin Band finished product one-shot forming.The magnetic conductivity of nanometer crystal alloy, Hc values are close to crystalline state permalloy high and cobalt base amorphous, and saturation magnetic strength Bs is suitable with middle nickel permalloy, and Technology for Heating Processing is simple, is a kind of preferably cheap high-performance soft magnetic materials；Although nanocrystalline The Bs values of alloy are less than Fe-based amorphous and silicon steel, but its high-frequency loss under magnetic strength high is far below them, and with more preferable Corrosion resistance and magnetic stability.Nanometer crystal alloy compared with ferrite, when less than 50kHz, with the basis of more low-loss With 2 to 3 times high of work magnetic strength, core volume can be small more than one times.Nanocrystalline magnet core production process：Metal material-melting- Get rid of band-be wound into disk-Wound core-heat treatment-curing process-finished product magnetic core.The production process of tape wound core is simple, energy-conservation, But core shapes are limited by band to be only capable of circularizing at present, rectangle, c-type, E types, SED types etc. are several, and core section All it is rectangle.

With the high frequency transformer or inductance of pot core making compared with being made of E types, U-shaped, X-type magnetic core, with body The features such as product is small, lightweight, making is simple, easy for installation.At present, pot core is all by ferrite, iron sial or other materials Sintered after the soft magnetism powder high pressure molding bonded of matter, the common drawback of this kind of material is low (the usual 0.5T of saturation magnetic induction Left and right), magnetic conductivity is low, high-frequency loss is high；Often making the magnetic core of a size simultaneously needs to make particular manufacturing craft, high cost； Core production complex process, power consumption is serious.

Utility model content

Technical problem to be solved in the utility model is：In order to overcome deficiency of the prior art, the utility model is carried For a kind of tank shape amorphous band iron core.

The utility model solves its technical problem technical scheme to be taken：A kind of tank shape amorphous band iron core, bag Stem is included, the stem includes stem internal layer, stem intermediate layer and the stem outer layer that ring sets successively from inside to outside, in the stem Layer and stem outer layer are formed by broadband winding, and by silt form around forming, the broadband and arrowband are non-in the stem intermediate layer Crystal zone material, and the broadband width more than the arrowband width, the stem internal layer, stem intermediate layer and stem outer layer Bottom surface is in the same plane.

Preferably, the narrowband width is 1mm~50mm, and the width in the broadband is 2mm~60mm.

Further, the stem outer layer and/or stem intermediate layer are provided with groove.

Specifically, the groove is processed by the way of wire cutting or grinding wheel grinding.

The preparation method of above-mentioned tank shape amorphous band iron core, comprises the following steps：

Step 1：According to the size of pot core, prepare to make the frock and amorphous band of magnetic core, select respectively around coremaking The broadband of post internal layer and stem outer layer, and coiling stem intermediate layer arrowband, be placed on iron core winder treats on drum (two works Position), it is that D1 is highly the winding core rod of B to prepare external diameter.

Step 2：Core rod is fixed on the backboard of iron core winder, first winds broadband, broadband on the core rod that external diameter is D1 Bottom surface is close on backboard, turns to external diameter for D internal diameters are that D1 is highly the stem internal layer of B, and broadband, referred to as iron are cut after winding Core I.

Step 3：Import arrowband, arrowband bottom surface is close to backboard, make iron core I take the lead push down taking the lead for arrowband, wind arrowband, External diameter is wound into for E internal diameters are that D is highly the stem intermediate layer of B-F, arrowband is cut after winding, form iron core II, iron core II is wrapped Include stem internal layer and stem intermediate layer.

Step 4：Import broadband again, backboard is close in broadband bottom surface, make the arrowband of iron core II take the lead push down the band in broadband Head, winds broadband, is wound into external diameter for A internal diameters are that E is highly the stem outer layer of B, broadband is cut after winding and is welded, and forms iron Core III, iron core III includes stem internal layer, stem intermediate layer and stem outer layer, and iron core winding is completed.

Step 5：The iron core for winding is put into dielectric heating oven and uniformly heats, and is heated up with 10 DEG C per minute of speed, control Furnace temperature processed is cooled to 100 DEG C with 20 DEG C of speed per minute again at 400~600 DEG C after being kept for three hours, what taking-up had been heat-treated Magnetic core.

Step 6：Iron core is completely infused in the modified epoxy containing curing agent by vacuum impregnation equipment, be allowed to fill Divide the bedding void of the nanocrystalline iron core of filling, taken out after the completion of impregnation and dry iron core.

Step 7：Iron core is put into baking oven, solidifying and setting 8 hours at 80-150 DEG C are taken out after cooling down with wire cutting or sand The mode of wheel piece grinding processes the groove of one fixed width and depth, and iron core is machined.

The beneficial effects of the utility model are：A kind of tank shape amorphous band iron core that the utility model is provided, by different width The thickness of degree is that 0.018-0.04mm nano-crystalline thin ribbons are fabricated to pot core by special equipment and frock by winding, with magnetic Powder core is more succinct compared to manufacture craft；Band has the saturation magnetic induction of 1.25T around nanocrystalline iron core, its high-frequency loss (< The 1/3 of FERRITE CORE 1000KHz) is just corresponded to, the high frequency iron loss of pot core is reduced.

Brief description of the drawings

The utility model is described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is the structural representation of the utility model embodiment one；

Fig. 2 is the structural representation of the utility model embodiment one；

Fig. 3 is the structural representation of the utility model embodiment one；

Fig. 4 is fabrication of iron core schematic flow sheet；

Fig. 5 is the structural representation of the utility model embodiment two；

Fig. 6 is the structural representation of the utility model embodiment three；

Fig. 7 is the structural representation of the utility model example IV.

In figure：1st, stem internal layer, 2, stem intermediate layer, 3, stem outer layer, 4, groove, 5, core rod, 6, backboard.

Specific embodiment

The utility model is described in detail presently in connection with accompanying drawing.This figure is simplified schematic diagram, only in a schematic way Basic structure of the present utility model is illustrated, therefore it only shows the composition relevant with the utility model.

Embodiment one：

As Figure 1-3, a kind of tank shape amorphous band iron core of the present utility model, including stem, the stem include by Ring sets successively from inside to outside stem internal layer 1, stem intermediate layer 2 and stem outer layer 3, the stem internal layer 1 and stem outer layer 3 are by width Tape wrapping is formed, and by silt form around forming, the broadband and arrowband are amorphous band, and the width in the stem intermediate layer 2 , more than the width of the arrowband, the bottom surface of the stem internal layer 1, stem intermediate layer 2 and stem outer layer 3 is positioned at same for the width of band In plane.As shown in figure 3, the width in broadband is represented with B, then the value of B is 2mm~60mm, and narrowband width is represented with (B-F), then (B-F) value is 1mm~50mm.

As shown in Fig. 2 being processed in the way of wire cutting or grinding wheel are ground on stem outer layer 3 and stem intermediate layer 2 Width is that K depth is the groove 4 of (A-J)/2.

As shown in figure 4, the preparation method of above-mentioned tank shape amorphous band iron core, comprises the following steps：

Step 1：According to the size of pot core, prepare to make the frock and amorphous band of magnetic core, select respectively around coremaking The broadband of post internal layer 1 and stem outer layer 3, and coiling stem intermediate layer 2 arrowband, be placed on treating on drum for iron core winder (two stations), it is that D1 is highly the winding core rod 5 of B to prepare external diameter.

Step 2：Core rod 5 is fixed on the backboard 6 of iron core winder, and first winding width is B on the core rod 5 that external diameter is D1 Broadband, broadband bottom surface is close on backboard 6, turn to external diameter for D internal diameters be D1 highly be B stem internal layer 1, cut after winding Disconnected broadband, forms iron core I, shown in such as Fig. 4 (a).

Step 3：It is the arrowband of B-F to import width, and arrowband bottom surface is close to backboard 6, make iron core I take the lead push down the band of arrowband Head, winds arrowband, is wound into external diameter for E internal diameters are that D is highly the stem intermediate layer 2 of B-F, and arrowband is cut after winding, and forms iron Core II, iron core II includes stem internal layer 1 and stem intermediate layer 2, such as shown in Fig. 4 (b).

Step 4：It is the broadband of B to import width again, and backboard 6 is close in broadband bottom surface, and make the arrowband of iron core II takes the lead pressure Firmly broadband is taken the lead, and winds broadband, is wound into external diameter for A internal diameters are that E is highly the stem outer layer 3 of B, and cutting broadband is simultaneously after winding Welding, forms iron core III, and iron core III includes stem internal layer 1, stem intermediate layer 2 and stem outer layer 3, and iron core winding is completed, such as Fig. 4 Shown in (c).

Step 5：The iron core for winding is put into dielectric heating oven and uniformly heats, and is heated up with 10 DEG C per minute of speed, control Furnace temperature processed is cooled to 100 DEG C with 20 DEG C of speed per minute again at 400~600 DEG C after being kept for three hours, what taking-up had been heat-treated Magnetic core.

Step 6：Iron core is completely infused in the modified epoxy containing curing agent by vacuum impregnation equipment, be allowed to fill Divide the bedding void of the nanocrystalline iron core of filling, taken out after the completion of impregnation and dry iron core.

Step 7：Iron core is put into baking oven, solidifying and setting 8 hours at 80-150 DEG C are taken out after cooling down with wire cutting or sand The mode of wheel piece grinding processes the groove 4 of one fixed width and depth, and iron core is machined.

Embodiment two：

As shown in figure 5, the present embodiment and the difference of embodiment one be groove 4 position and shape it is different, this reality It is directly in stem intermediate layer 2 and stem outer layer 3 by the way of wire cutting or grinding wheel grinding along straight line to apply the groove 4 in example On cut two shapes of discount vibram outlet, two discount vibram outlets are radially symmetrical arranged.

Embodiment three：

As shown in fig. 6, the present embodiment and the difference of embodiment two be groove 4 shape it is different, in the present embodiment Groove 4 be using wire cutting or grinding wheel grinding by the way of along aduncate camber line directly in stem intermediate layer 2 and stem Two pieces are cut on outer layer 3, the position cut away radially is symmetrical arranged.

Example IV：

As shown in fig. 7, the present embodiment and the difference of embodiment one be groove 4 position and shape it is different, this reality It is that a U-shaped for opening upwards is opened up on stem outer layer 3 by the way of wire cutting or grinding wheel grinding to apply the groove 4 in example Groove.

Amorphous ribbon is also referred to as amorphous material, by nanocrystalline (ultracrystallite) band can be formed after working process, It can be still amorphous band.Therefore iron core of the present utility model and preparation method are applied to nanocrystalline (ultracrystallite) band, can For amorphous band.

With above-mentioned according to desirable embodiment of the present utility model as enlightenment, by above-mentioned description, related work Personnel can carry out various changes and amendments in the range of without departing from the utility model completely.This utility model Technical scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.

Claims (4)

1. a kind of tank shape amorphous band iron core, it is characterised in that：Including stem, the stem includes that from inside to outside ring sets successively Stem internal layer (1), stem intermediate layer (2) and stem outer layer (3), the stem internal layer (1) and stem outer layer (3) are wound by broadband Form, by silt form around forming, the broadband and arrowband are amorphous band to the stem intermediate layer (2), and the broadband More than the width of the arrowband, the bottom surface of the stem internal layer (1), stem intermediate layer (2) and stem outer layer (3) is located at together width In one plane.

2. tank shape amorphous band iron core as claimed in claim 1, it is characterised in that：The narrowband width is 1mm~50mm, institute The width for stating broadband is 2mm~60mm.

3. tank shape amorphous band iron core as claimed in claim 1, it is characterised in that：In the stem outer layer (3) and/or stem Interbed (2) is provided with groove (4).

4. tank shape amorphous band iron core as claimed in claim 3, it is characterised in that：The groove (4) uses wire cutting or sand The mode of wheel piece grinding is processed.