CN206301670U - Inductor - Google Patents
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- CN206301670U CN206301670U CN201621208770.6U CN201621208770U CN206301670U CN 206301670 U CN206301670 U CN 206301670U CN 201621208770 U CN201621208770 U CN 201621208770U CN 206301670 U CN206301670 U CN 206301670U
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Abstract
The utility model provides a kind of magnetic-coupled inductor for being difficult to and occurring between inductance element.Inductor in one implementation method includes the magnetic core of multiple coils and the closed magnetic circuit for forming the magnetic flux that each coil is produced, magnetic core has the yoke portion at the multiple post portions for being each passed through multiple coils and the two ends for linking each post portion, and the magnetic conductivity for forming the material in post portion is lower than forming the magnetic conductivity of the material in yoke portion.Thus, in the inductor with multiple inductance elements, the magnetic coupling between inductance element can be reduced.
Description
Technical field
The utility model is related to a kind of inductor.
Background technology
Using there is inductor in various circuits.Such as electric system complicated as combination has the circuit of multiple systems
In system, the number that there is the inductor for using becomes many situations.Inductor due in the structure important document of circuit than relatively large and
Weight is also big, therefore, particularly require miniaturization, lightweight in using the electrical system of multiple inductors.
Record by the way that the magnetic core of multiple inductance elements is formed as one to realize miniaturization, light weight in patent document 1
The inductor of change.
Prior art literature
Patent document
Patent document 1：(Japan) JP 2007-299915 publications
The utility model technical problem to be solved
But, in the inductor described in patent document 1, the magnetic conductivity for being wound with the post portion (reel magnetic core) of coil compares magnetic
The magnetic conductivity of yoke (shielding magnetic core) is high, therefore, easily there is magnetic coupling between inductance element.
Utility model content
The utility model is to complete in view of the above problems, it is intended that in the inductance with multiple inductance elements
In device, the magnetic coupling between inductance element is reduced.
The utility model provides a kind of inductor, its closed magnetic for including multiple coils and forming the magnetic flux that each coil is produced
The magnetic core on road, magnetic core has the yoke portion at the multiple post portions for being each passed through multiple coils and the two ends for linking each post portion, forms post portion
Material magnetic conductivity it is lower than forming the magnetic conductivity of the material in yoke portion.
It is lower than forming the magnetic conductivity of the material in yoke portion due to forming the magnetic conductivity of material in post portion according to the structure, therefore
It is difficult to the magnetic coupling for occurring between inductance element.
In above-mentioned inductor, it is also possible to which being configured to post portion includes compressed-core.
In addition, in above-mentioned inductor, it is also possible to be configured to yoke portion and include compressed-core, amorphous magnetic core, electromagnetic steel plate magnetic
In core and nanocrystal magnetic core at least any one.
In addition, in above-mentioned inductor, it is also possible to which the magnetic conductivity of the material for being configured to form yoke portion is the material to form post portion
More than 2 times of the magnetic conductivity of material.
In addition, in above-mentioned inductor, it is also possible to which the magnetic conductivity of the material for being configured to form yoke portion is the material to form post portion
More than 3 times of the magnetic conductivity of material.
In addition, in above-mentioned inductor, it is also possible to which the relative permeability of the material for being configured to form post portion is more than 30 40
Hereinafter, the relative permeability for forming the material in yoke portion is less than more than 150 200.
In addition, in the inductor, it is also possible to which being configured to post portion has gap.
According to the structure, magnetically saturated generation can be suppressed.
In above-mentioned inductor, it is also possible to be configured to：Yoke portion have the first yoke portion for being engaged with the one end in multiple post portions and
The second yoke portion and the first yoke portion of link of the other end engagement in multiple post portions and the 3rd yoke portion in the second yoke portion, the first yoke portion includes
Multiple first splits yoke portion, and the second yoke portion includes that multiple second splits yoke portion, electricity is formed by coil and through the post portion of the coil
Sensor cell, yoke portion links together multiple inductor units.
In above-mentioned inductor, it is also possible to be configured to：Yoke portion have the first yoke portion for being engaged with the one end in multiple post portions and
The second yoke portion and the first yoke portion of link of the other end engagement in multiple post portions and the 3rd yoke portion in the second yoke portion, the first yoke portion includes
With the first segmentation yoke portion of post portion equal number, the second yoke portion includes the second segmentation yoke portion with post portion equal number, by coil
With the post portion that will pass through the coil be engaged with the first segmentation yoke portion and the second segmentation yoke portion obtained by magnetic core unit formation inductor
Unit, multiple inductor units link together.
According to the structure, constructed by the way that inductor is set into unit, the sharing of part can be realized in multi items, it is special
It is not, when multi items are produced on a small quantity, to be easily reduced material cost.Furthermore it is also possible to realize the common of the assembling procedure of inductor
Change, processing cost can also be reduced.Additionally, because the 3rd yoke portion is shared by multiple inductor elements (magnetic core unit), therefore, with
Compared using the situation of the inductor of multiple single magnetic cores, miniaturization, lightweight and material cost can be realized and be processed into
This reduction (for example, reducing by 30% weight, reducing by 30% material and processing cost).
In addition, in above-mentioned inductor, it is also possible to which the magnetic conductivity ratio of the material for being configured to form post portion forms the 3rd yoke portion
Material magnetic conductivity it is low.
In addition, in above-mentioned inductor, it is also possible to which it is tabular to be configured to the first segmentation yoke portion and the second segmentation yoke portion.
In addition, in above-mentioned inductor, it is also possible to be configured to the axle of the first segmentation yoke portion and the second segmentation yoke portion in coil
It is square or regular hexagon when looking up.
According to the structure, it is possible to increase the filling rate of inductor unit, miniaturization is realized.
Brief description of the drawings
Fig. 1 is the front view of the reactor of the utility model first embodiment.
Fig. 2 is the top view of the reactor of the utility model first embodiment.
Fig. 3 is the front view of the reactor unit of the utility model first embodiment.
Fig. 4 is the A-A sectional views of Fig. 3.
Fig. 5 is the front view of the magnetic core unit of the utility model first embodiment.
Fig. 6 is the front view of a variation of magnetic core unit.
Fig. 7 is the front view of the reactor of the utility model second embodiment.
Fig. 8 is the top view of the reactor of the utility model second embodiment.
Fig. 9 is the chart of the DC superposition characteristic of the reactor for representing the utility model second embodiment.
Figure 10 is the front view of the reactor of the implementation method of the utility model the 3rd.
Figure 11 is the top view of the reactor of the implementation method of the utility model the 3rd.
Figure 12 is the front view of the reactor of the implementation method of the utility model the 4th.
Figure 13 is the top view of the reactor of the implementation method of the utility model the 4th.
Figure 14 is the front view of the reactor of the implementation method of the utility model the 5th.
Figure 15 is the top view of the reactor of the implementation method of the utility model the 5th.
Figure 16 is the front view of the reactor of the implementation method of the utility model the 6th.
Figure 17 is the top view of the reactor of the implementation method of the utility model the 6th.
Figure 18 is the front view (longitudinal section) of the reactor of the implementation method of the utility model the 7th.
Figure 19 is the top view of the reactor of the implementation method of the utility model the 7th.
Figure 20 is the top view (sectional elevation) of the reactor of the implementation method of the utility model the 8th.
Figure 21 is the top view (sectional elevation) of the reactor of the implementation method of the utility model the 8th.
Specific embodiment
Hereinafter, referring to the drawings, implementation method of the present utility model is illustrated.In addition, in the following description, for
Shared or corresponding important document adds same or similar symbol, and the repetitive description thereof will be omitted.
＜ first embodiments ＞
Fig. 1 and Fig. 2 are respectively the front view and top view of the reactor 100 of the utility model first embodiment.Reactance
Device 100 is to be assembled with two compound reactors (inductor) of reactance component (inductance element).Reactor 100 has two reactance
Device unit 10 (inductor unit) and two the 3rd yoke portions 56,58.
Fig. 3 and Fig. 4 are respectively the front view and sectional elevation (the A-A sectional views of Fig. 3) of reactor unit 10.Reactor list
Unit 10 has coil 20 and the magnetic core unit 30 as magnetic part.
Coil 20 is the so-called edgewise coil by the way that the lenticular wire that insulate is bent and formed in width, big with being wound into
The terminal part (terminal) 24,26 that the winding portion 22 and the two ends from winding portion 22 for causing cylinder spiral shape linearly extend.Coil
20 are connected in terminal part 24,26 with the coil 20 of external conductor or other reactor units 10.
Fig. 5 is the front view of magnetic core unit 30.Magnetic core unit 30 has the columned post portion 40 for convolute coil 20
Respectively the first segmentation yoke portion 52a of square plate shape and the second segmentation yoke portion 54a.First segmentation yoke portion 52a and second
Segmentation yoke portion 54a is engaged by bonding etc. with the two ends in post portion 40 respectively.
First segmentation yoke portion 52a and the second segmentation yoke portion 54a are for example by magnetic powder core (compressed-core), amorphous magnetic core, electricity
The magnetic conductivities such as magnetic steel plate (silicon steel plate) magnetic core, nanocrystal magnetic core, soft ferrite magnetic core, permalloy magnetic core, iron core compare
Magnetic material high is formed.
Post portion 40 is the iron powder magnetic by the way that surface to be press-formed and be made by the soft magnetic material powder that insulating barrier is covered
Core (such as Fe-Si systems compressed-core), is formed by the magnetic conductivity magnetic material lower than each segmentation yoke portion 52a, 54a.Post portion 40
Magnetic conductivity can be adjusted by the pressure being press-formed.It is further possible to using the species of magnetic material, composition come adjustment column
The magnetic conductivity in portion 40.
Two reactor units 10 are arranged on the direction (left and right directions of Fig. 1) vertical with the central shaft Ax of coil 20,
End face of the end face of the first segmentation yoke portion 52a each other with the second segmentation yoke portion 54a is engaged by bonding etc. separately from each other.By
This, two first segmentation yoke portion 52a link to form a flat first yoke portion 52, and two second segmentation yoke portion 54a link
Form a flat second yoke portion 54.In addition, the first yoke portion 52 and the second yoke portion 54, in order to be set to by multiple identicals electricity
Anti- device unit 10 constitutes the unit construction of reactor 100, can respectively wait and be divided into multiple segmentation yoke portion 52a, 54a.
In addition, the first segmentation yoke portion 52a of the reactor unit 10 of a side (right side of Fig. 1) and the second segmentation yoke portion 54a
It is connected by the 3rd yoke portion 56.Specifically, the end face of the first segmentation yoke portion 52a passes through with the 3rd yoke portion 56 such as bonding
Individual face bottom engagement, the end face of the second segmentation yoke portion 54a is engaged by bonding etc. with the face upper end in the 3rd yoke portion 56.
Equally, the first segmentation yoke portion 52a and the second segmentation yoke portion 54a of the reactor unit 10 of the opposing party (left side of Fig. 1) are by the
Three yoke portions 58 are connected.
Thus, the first yoke portion 52, the second yoke portion 54 and the 3rd yoke portion 56,58 link, and form ring-type yoke 50.In addition, by two
Individual post portion 40 and yoke 50 form the magnetic core of reactor 100.
3rd yoke portion 56,58 uses magnetic material (such as magnetic powder core, amorphous magnetic with the magnetic conductivity higher than post portion 40
Core, silicon steel plate, nanocrystal magnetic core, FERRITE CORE etc.).In addition, in present embodiment, the 3rd yoke portion 56,58 is by with first
The identical magnetic material of 52 and second yoke portion of yoke portion 54 is formed, but it is also possible to by different from the first yoke portion 52 and the second yoke portion 54
Magnetic material is formed.
The reactor 100 of present embodiment is that its two reactor element for being included has the 3rd yoke portion 56,58 jointly
Structure, therefore, with using compared with 2 reactors with single reactor element, it is necessary to part (the 3rd yoke
Portion 56,58) quantity are few.As a result, smaller, more light weight can be realized, and with less man-hour with regard to assemblnig reactor.
In addition, according to the structure of present embodiment, due to compared with the post portion 40 of each reactor unit 10, the 3rd yoke portion
56th, 58 magnetic conductivity is higher, therefore compared with by the magnetic loop in post portion 40, by the magnetic of the magnetic loop in the 3rd yoke portion 56,58
Resistance is lower.Therefore, the magnetic flux for being produced by a coil for reactor unit 10 20, not only by another reactor unit 10
Post portion 40, also by the 3rd yoke portion 56,58.As a result, the magnetic flux that the coil 20 of each reactor unit 10 is produced is difficult mutually
Influence.That is, magnetic coupling is not susceptible between two reactor elements that reactor 100 is included.
Additionally, according to the structure of present embodiment, the 3rd yoke portion 56,58 is common by multiple inductor elements (magnetic core unit 10)
With, therefore, compared with the situation of the inductor using multiple single magnetic cores, can realize miniaturization, lightweight and material into
This reduction (for example, reducing by 30% weight, reducing by 30% material and processing cost) with processing cost.
When the material for making the 3rd yoke portion 56,58 magnetic conductivity for more than 2 times or 3 times of magnetic conductivity of the material in post portion 40 with
When upper, the magnetic-coupled effect between the reactor element that can fully be inhibited.For example, making the relative magnetic of the material in post portion 40
Conductance is 30~40 or so, in the case that the relative permeability of the material in the 3rd yoke portion 56,58 is 150~200 or so, can be very
Suppress the magnetic coupling between reactor element well.
The reactor 100 of present embodiment can serve as the switching regulator reactor of such as 2 staggered control modes.
The variation ＞ of ＜ reactor units
Fig. 6 is the front view of a variation 30A of magnetic core unit.Do not have in the magnetic core unit 30 of above-mentioned first embodiment
Set gap (air gap or distance member), but the magnetic core unit 30A of this variation is provided with gap at three.
Magnetic core unit 30A is replacing the post portion 40 of first embodiment, between two segmentation post portion 42a, 42b and three
Every the post portion 40A aspects of part 44a, 44b, 44c, the magnetic core unit 30 from first embodiment is different.First segmentation yoke portion
52a, distance member 44a, segmentation post portion 42a, distance member 44b, segmentation post portion 42b, the segmentation yokes of distance member 44c and second portion
54a, is laminated with this sequentially on the central shaft Ax directions of coil 20, is bonded together by bonding etc..
Segmentation post portion 42a, 42b are the post portions of the post portion 40 of the first embodiment length of about half, are magnetic conductivity scores
Cut the low magnetic powder core of yoke portion 52a, 54a.In addition, the length of segmentation post portion 42a and segmentation post portion 42b can also be mutually different.
In addition, the composition or magnetic conductivity of segmentation post portion 42a and segmentation post portion 42b can also be different.
Distance member 44a, 44b, 44c are (for example, the ceramics such as aluminium by the magnetic conductivity material lower than segmentation post portion 42a, 42b
Or the nonmagnetic material such as various synthetic resin) plate-shaped member that is formed.Alternatively, it is also possible to formed by bonding agent distance member 44a,
44b、44c.In this case, it is not necessary to distance member 44a, 44b, 44c and each magnetic part (are split by post portion by bonding etc. again
42a, 42b and each segmentation yoke portion 52a, 54a) engagement.
According to the structure of this variation, magnetic conductivity (that is, magnetic resistance more much lower than each magnetic part is set by post portion 40A
It is much bigger) gap, making it difficult to there is magnetic saturation.
In addition, in this variation, three gaps are provided with post portion 40A, but it is also possible to set (an example in post portion
Such as, any one in distance member 44a, 44b, 44c) or 2 (such as distance member 44a, 44c) or the gap of more than 4.
Alternatively, it is also possible to replace distance member, air gap is set.
In addition, this variation is not limited to first embodiment, it is also possible to be applied to include the described later second~the 7th implementation
Mode is in interior other embodiment.
＜ second embodiments ＞
Fig. 7 and Fig. 8 are respectively the front view and top view of the reactor 200 of the utility model second embodiment.Reactance
Device 200 is to be assembled with three compound reactors of reactor element, with three reactor units 10 (reactor unit 10R,
10S, 10T) and two the 3rd yoke portions 56,58.
Three reactor units 10R, 10S, 10T are in the direction (right and left of Fig. 7 vertical with the central shaft Ax of coil 20
To) on form a line, the end face of adjacent first segmentation yoke portion 52a each other with the end face of the second adjacent segmentation yoke portion 54a that
This is engaged by bonding etc. respectively.In addition, the reactor unit 10T of one end (right-hand member of Fig. 7) first segmentation yoke portion 52a and
Second segmentation yoke portion 54a is connected by the 3rd yoke portion 56, first point of the reactor unit 10R of the other end (left end of Fig. 7)
The segmentations of yoke portion 52a and second yoke portion 54a is cut to be connected by the 3rd yoke portion 58.
Fig. 9 is the chart for representing the DC superposition characteristic of reactor 200.Transverse axis represents DC bias current level (unit：A),
The longitudinal axis represents inductance value (unit：μH).Solid line R, short dash line S and dotted line T long in Fig. 9 be respectively left side in Fig. 7, center and
The measurement result of reactor unit 10R, 10S and the 10T on right side.In addition, the inductance of solid line R, short dash line S and dotted line T long be
The coil 20 of other (that is, non-measured object) 2 reactor units 10 be disconnected in the state of to each reactor unit 10
Measure what is obtained, hereinafter referred to as " disconnect inductance Lopen”.Additionally, the dotted line " R (S, T short circuit) " in Fig. 9 is to make non-survey
The terminal 24 for measuring the reactor unit 10S and 10T of object is allowed to the reactor unit 10R of measurement in the state of short circuit with terminal 26
Measurement result, hereinafter referred to as " short circuited inductance Lsc”.In addition, the DC superposition characteristic shown in Fig. 9 uses LCR measuring appliances and direct current
Bias current supercircuit is measured.
Disconnect inductance Lopen(solid line R, short dash line S and dotted line T long in Fig. 9), due to not producing reactance in measurement
Mutual induction between device unit 10, therefore it is actually the self-induction L of each reactor unit 10R, 10S, 10TR、LS、LT.Additionally, electric
The short circuited inductance L of anti-device unit 10RscThere is following calculating formula (1) to represent.
Wherein, Lsc：The short circuited inductance of reactor unit 10R,
kRS：The coefficient of coup of reactor unit 10R and 10S,
kRT：The coefficient of coup of reactor unit 10R and 10T,
LR：The self-induction of reactor unit 10R,
Lopen：The disconnection inductance of reactor unit 10R.
By above calculating formula (1) deformation, can obtain representing coefficient of coup kRSAnd kRTFang Jun subduplicate calculating formula
(2)。
The coefficient of coup between each reactor unit 10 is assumed to be equal (k for convenience of calculationRS=kRT) when, energy
Access expression coefficient of coup kRS、kRTFollowing calculating formula (3).
It can be seen from chart according to Fig. 9：Short circuited inductance LscWith disconnection LopenThe ratio between Lsc/LopenFor about 0.9, coefficient of coup kRS、
kRTFor about 0.05, the magnetic coupling between reactor unit 10 becomes very small.
The reactor 200 of present embodiment for example can serve as 3 cross streams reactors, 3 staggered control modes and open
Close the power converter of many string modes of middle three input circuits for using such as voltage-stablizer reactor or photovoltaic power generation system
Direct current reactor.
The implementation method ＞ of ＜ the 3rd
Figure 10 and Figure 11 are respectively the front view and top view of the reactor 300 of the implementation method of the utility model the 3rd.Electricity
Anti- device 300 is to be assembled with four compound reactors of reactor element, with four reactor units 10 and two the 3rd yoke portions
56、58.The reactor 400 of present embodiment is the reactance of the quantity with second embodiment of linked reactor unit 10
Device 200 is different.
The reactor 300 of present embodiment is for example also used as the middle four input electricity for using such as photovoltaic power generation system
The direct current reactor of the power converter of many string modes on road.
The implementation method ＞ of ＜ the 4th
Figure 12 and Figure 13 are respectively the front view and top view of the reactor 400 of the implementation method of the utility model the 4th.Electricity
Anti- device 400 is to be assembled with five compound reactors of reactor element, with five reactor units 10 and two the 3rd yoke portions
56、58.The reactor 400 of present embodiment is the reactance of the quantity with second embodiment of linked reactor unit 10
The reactor 300 of the implementation method of device 200 and the 3rd is different.
The reactor 400 of present embodiment for example can serve as middle five input circuits for using such as photovoltaic power generation system
The direct current reactor of power converter of many string modes use.
The implementation method ＞ of ＜ the 5th
Figure 14 and Figure 15 are respectively the front view and top view of the reactor 500 of the 5th implementation method of the present utility model.
The reactor 300 of reactor 500 and the 3rd above-mentioned implementation method is again it is be assembled with four compound reactance of reactor element
Device.Reactor 500 has four reactor units 10 and two the 3rd yoke portions 556,558.
Four reactor units 10 are arranged in 2 row, phase on the direction vertical with the central shaft Ax of coil 20 in clathrate
The end face of the first adjacent segmentation yoke portion 52a is each other, the end face of adjacent second segmentation yoke portion 54a is separately from each other by being bonded etc.
Engagement.In addition, the first segmentation yoke portion 52a of two reactor units 10 of one end (right-hand member of Figure 14) and the second segmentation yoke portion
54a is connected by the 3rd yoke portion 556, the first yoke portion 52 of two reactor units 10 of the other end (left end of Figure 14) and
Two yoke portions 54 are connected by the 3rd yoke portion 558.
The reactor 500 of present embodiment compared with the reactor 300 (Figure 10, Figure 11) of the 3rd implementation method, first point
The composition surface of cutting the segmentations of yoke portion 52a and second yoke portion 54a is more, bonding area is big.Therefore, for example by each yoke of engagement such as bonding
In the case of portion, the mechanical strength yoke 550 higher than the 3rd implementation method is obtained.On the other hand, the reactor of the 3rd implementation method
300, due to the 3rd yoke portion 56,58 depth (length of the above-below direction of Figure 11) than present embodiment the 3rd yoke portion 556,
558 (Figure 15) are short, therefore are conducive to lightweight compared with the reactor 500 of present embodiment.
The implementation method ＞ of ＜ the 6th
Figure 16 and Figure 17 are respectively the front view and top view of the reactor 600 of the implementation method of the utility model the 6th.Electricity
Anti- device 600 is to be assembled with three compound reactors of reactor element.In the present embodiment, formed by coil 20 and post portion 40
Reactor unit 610 (reactor pair unit).In addition, as present embodiment reactor unit 610, in this manual will not
Reactor unit including yoke portion is especially referred to as " reactor pair unit ".Reactor 600 includes three reactor units 610,
The 3rd yoke portion 56 of the first segmentation yoke portion 652a, a pair second segmentation yoke portion 654a and rectangular flat shape to rectangular flat shape,
58.In addition, the first segmentation yoke portion 652a, the second segmentation yoke portion 654a of present embodiment and the 3rd yoke portion 56,58 are identicals
Part, but these parts can also be the mutually different different parts such as size, material.
A pair first end faces of segmentation yoke portion 652a form the first yoke portion of rectangular flat shape each other by the engagement such as bonding
652.Additionally, a pair second end faces of segmentation yoke portion 654a form the second yoke of rectangular flat shape each other by the engagement such as bonding
Portion 654.
Three reactor units 610, on the direction (left and right directions in Figure 16) vertical with the central shaft Ax of coil 20
Equally spaced arrange, with the first yoke portion 652 by the engagement such as Nian Jie, the other end passes through with the second yoke portion 654 for the one end in post portion 40
The engagement such as bonding.
Bottom in first yoke portion 652 and the one end in the second yoke portion 654, with a face in the 3rd yoke portion 56 of a side and
Upper end is combined by bonding etc. respectively.Additionally, the other end in the first yoke portion 652 and the second yoke portion 654, the with the opposing party the 3rd
The bottom and upper end in one face in yoke portion 58 are combined by bonding etc. respectively.Thus, the first yoke portion 652, the second yoke portion 654
And a pair the 3rd yoke portions 56 and 58 link circlewise, form yoke 650.
In the above-mentioned first to the 5th implementation method, the first yoke portion and the second yoke portion press respectively reactor element number by etc.
Segmentation, so as to be divided into each each reactor unit 10.Thus, the blocking of the part also comprising yoke portion is carried out.And at this
In implementation method, the blocking also comprising yoke portion is not carried out, the first yoke portion 652 and the second yoke portion 654 etc. are divided into and compare reactance
Few two of device parts number.According to the structure, by the first segmentation yoke portion 652a, the second segmentation yoke portion 654a and the 3rd yoke portion 56
Identical part is set to 58, thus, it is possible to reduce material cost.
In addition, in the present embodiment, the first yoke portion 652 and the second yoke portion 654 are cut into reactor unit 10 respectively
First segmentation yoke portion 652a of 3/2 length of arrangement pitch and the second segmentation yoke portion 654a.So, the first segmentation yoke portion 652a is made
Or the 2nd segmentation yoke portion 654a and reactor unit 10 configuration space 1/2 integral multiple (or only integral multiple of configuration space)
Length it is consistent, thereby, it is possible to different with the number of permutations of the part of few species (segmentation yoke portion) assembling reactor unit 10
The reactor of plurality of specifications.In addition, being set to than electricity by by the length of the first segmentation yoke portion 652a or the second segmentation yoke portion 654a
The configuration space of anti-device unit 10 is (for example, 1.5 times of configuration space, 2 times, 2.5 times length) long, can reduce segmentation yoke portion
The mutual engagement of 652a, 654a, it is possible to increase the packaging efficiency of reactor.
<7th implementation method>
Figure 18 and Figure 19 be respectively the reactor 700 of the implementation method of the utility model the 7th front view (longitudinal section) and
Top view.Reactor 700 is to be assembled with two compound reactors of reactor element.Reactor 700 includes two reactor lists
Unit 10 and a pair the 3rd yoke portions 756,758.The end of the first segmentation yoke portion 52a of each reactor unit 10 is bonded with each other and is formed
First yoke portion 752, the end of the second segmentation yoke portion 54a is engaged with each other and forms the second yoke portion 754.
In the reactor 700 of present embodiment, the electricity of the size in the 3rd yoke portion 756,758 and configuration and first embodiment
Anti- device 100 (Fig. 1, Fig. 2) is different.In the reactor 100 of first embodiment, the 3rd yoke portion 56,58 is separately mounted to reactance
Two ends in the orientation of device unit 10 (left and right directions in Fig. 2).And in the reactor 700 of present embodiment, the 3rd yoke
It is (upper and lower in Figure 18 that portion 756,758 is separately mounted to the direction vertical with the orientation of reactor unit 10 and central shaft Ax
Direction) on two ends.A pair first segmentation yoke portion 52a, a pair second segmentation yoke portion 54a, a pair the 3rd yoke portions 756,758 link
And form the yoke 750 of ring-type.
3rd yoke portion 56,58 of first embodiment, because being only installed in a reactor unit 10 respectively, no
With two functions of reactor unit 10 of link.In the first embodiment, two reactor units 10, because only first
End face mutual two face of the end face of segmentation yoke portion 52a each other with the second segmentation yoke portion 54a engages, therefore links two reactance
The intensity of device unit 10 is smaller.
And in the 3rd yoke portion 756,758 of present embodiment, because splitting with two the first of reactor unit 10 respectively
The segmentation yoke portion 54a engagements of yoke portion 52a and second, so with two functions of reactor unit 10 of link.In present embodiment
In, two reactor units 10, in the end face mutual 2 that the end face of the first segmentation yoke portion 52a splits yoke portion 54a with second each other
Individual face, and each reactor unit 10 the first segmentation yoke portion 52a and the 3rd segmentation of yoke portion 756, first yoke portion 52a and the 3rd yoke
Split yoke portion 54 and the face in the 3rd yoke portion 756 and the second segmentation yoke portion 54 and the 3rd yoke portion 758 and add up to 10 faces in portion 758, second
Engagement, the yoke 750 much higher therefore, it is possible to form the intensity compared with the reactor 100 of first embodiment.
<8th implementation method>
Figure 20 is the top view (sectional elevation) of the reactor 800 of the implementation method of the utility model the 8th.Reactor 800 is
It is assembled with three compound reactors of reactor element.
Reactor 800 have three groups of coils 20 and post portion 40, a pair of flat yoke portions of equilateral triangle (the first yoke portion 852,
Second yoke portion 854) and three the 3rd yoke portions 856,857,858 of rectangular flat shape.
First yoke portion 852 and the second yoke portion 854 interval apart from top to bottom and configure in parallel to each other, by three the 3rd yoke portions
856th, 857,858 are connected.Yoke is formed by the first yoke portion 852, the second yoke portion 854 and three the 3rd yoke portions 856,857,858
850。
Each post portion 40 stands on the upper surface in the first yoke portion 852, is clipped between the first yoke portion 852 and the second yoke portion 854.And
And, the lower end in each post portion 40 is engaged by bonding etc. with the first yoke portion 852, and upper end engages with the second yoke portion 854.In addition, each post
The central shaft Ax in portion 40 is configured at the equidistant shifting in direction to each summit V from the center of gravity G in the first yoke portion 852 of equilateral triangle shape
The position moved.That is, three post portions 40 are configured to each central shaft Ax by each of the equilateral triangle T concentric with the first yoke portion 852
Summit.
Alternatively, it is also possible to by three corners in the first yoke portion 852 and the second yoke portion 854, the edge as shown in the dotted line in Figure 20
It is cut into arc-shaped in the periphery for coil 20.Thus, it is possible to more lightweight.
In above-mentioned first~the 5th and the 7th implementation method, in order to comprising the first yoke portion 52 and the ground of the second yoke portion 54 by electricity
Anti- device unit 10 is constituted (i.e. blocking) as base unit, and the first yoke portion 52 and the second yoke portion 54 are according to reactor element number
Amount is divided, and distributes in each reactor unit 10.On the other hand, the reactor 800 of the 8th implementation method is used comprising the
One yoke portion 852 and the blocking in the second yoke portion 854, therefore the first yoke portion 852 and the second yoke portion 854 just do not enter since most respectively
Row segmentation, but form as one.Therefore, there is no need to the operation for being integrally bonded multiple segmentation yoke portions, can be with less
Man-hour array fills reactor 800.
On the other hand, such as the 8th implementation method, without the knot using the blocking comprising the first yoke portion and the second yoke portion
In structure, due to needing according to the quantity of reactor element (coil) or configuration come individually designed making the first yoke portion and the second yoke
Portion, therefore there is shortcoming as fee of material increases when such as multi items on a small quantity production.In contrast, such as first
~the five and the 7th implementation method like that comprising the first yoke portion and the second yoke portion ground blocking structure in, due to part (first
The segmentation yokes of segmentation yoke portion 52a and second portion 54a) sharedization, even if therefore can also when multi items limited production
Suppressing fee of material makes its relatively low.Further, since assembling procedure also sharedization, therefore, it is possible to efficiently assemble reactor.In addition,
Fee of material is easily reduced in the case of a large amount of productions, packaging efficiency is improved.
The implementation method ＞ of ＜ the 9th
Figure 21 is the top view (sectional elevation) of the reactor 900 of the implementation method of the utility model the 9th.Reactor 900 is
It is assembled with three compound reactors of reactor element.Reactor 900 has three reactor units 910 and three the 3rd yoke portions
956、957、958。
The reactor unit 910 of present embodiment the first segmentation yoke portion 952a and the second segmentation yoke portion 954a shape not
It is square plate shape but regular hexagon tabular aspect, the reactor unit 10 with the first~the 5th and the 7th implementation method
It is different.Regular hexagon tabular is set to by by the first segmentation yoke portion 952a and the second segmentation yoke portion 954a, can be with vertical view
The mode that equilateral triangle T is formed in figure (Figure 21) arranges three reactor units 910.Therefore, reactor unit 910 can be carried out
The most close filling of two dimension of (columned coil 20).Thus, it is possible to realize the further miniaturization of reactor.
Above is the explanation of embodiment illustrated of the present utility model.Implementation method of the present utility model is not limited to the above
The mode of explanation, can arbitrarily change in the range of the technological thought that is showed of record of claims.
In the respective embodiments described above, the post portion 40,40A of magnetic core has used magnetic powder core, but it is also possible to use amorphous magnetic
The magnetic of other species such as core, electromagnetic steel plate magnetic core, nanocrystal magnetic core, soft ferrite magnetic core, permalloy magnetic core, iron core
Core.Each portion (post portion and each yoke portion) of magnetic core is constituted alternatively, it is also possible to the magnetic core component of multiple types is combined.
In the respective embodiments described above, the post portion 40,40A of magnetic core is formed as cylindric, but it is also possible to be formed as other
Shape (such as quadrangular shape or hexa-prism).
In the respective embodiments described above, the first yoke portion is configured to link by 2 or 3 the 3rd yoke portions with the second yoke portion, but
It is that can also be configured to link the first yoke portion and the second yoke portion by the 3rd yoke portion of 1 or more than 4.
In the above-described embodiment, the conductor of coil uses lenticular wire, but it is also possible to (for example justified using other shapes of conductor
Line).
In the above-described embodiment, the method for winding of coil uses flat vertical winding, it would however also be possible to employ other method for winding.
In the above-described embodiment, coil uses cylindrical coil, but it is also possible to (for example rolled up using the coil of other species
It is coiled into the spiral helicine side's coil of square tube).In addition, the shape of cross section of coil is preferably set to the cross section shape with the post portion of magnetic core
The corresponding shape of shape (such as similar shape).
Above-mentioned implementation method is the example that the utility model is applied to radio-frequency rector, but the utility model is not limited to electricity
Anti- device, can apply to the various inductors such as choking-winding, the coil of digital amplifier, balun coil, aerial coil.In addition,
The utility model can also be applied to the complex transformer for making the transformer of multisystem form as one.
Claims (13)
1. a kind of inductor, it includes：
Multiple coils；With
The magnetic core of the closed magnetic circuit of the magnetic flux that each coil is produced is formed,
The magnetic core has：
It is each passed through multiple post portions of the multiple coil；With
Link the yoke portion at the two ends in each post portion,
The magnetic conductivity for forming the material in the post portion is lower than forming the magnetic conductivity of the material in the yoke portion.
2. inductor according to claim 1, it is characterised in that：
The post portion includes compressed-core.
3. inductor according to claim 1, it is characterised in that：
The yoke portion comprising in compressed-core, amorphous magnetic core, electromagnetic steel plate magnetic core and nanocrystal magnetic core at least any one.
4. inductor according to claim 1, it is characterised in that：
The magnetic conductivity for forming the material in the yoke portion is more than 2 times of the magnetic conductivity of the material to form the post portion.
5. inductor according to claim 4, it is characterised in that：
The magnetic conductivity for forming the material in the yoke portion is more than 3 times of the magnetic conductivity of the material to form the post portion.
6. inductor according to claim 1, it is characterised in that：
The relative permeability for forming the material in the post portion is less than more than 30 40,
The relative permeability for forming the material in the yoke portion is less than more than 150 200.
7. inductor according to claim 1, it is characterised in that：
The post portion has gap.
8. inductor according to claim 1, it is characterised in that：
The yoke portion has：
The the first yoke portion engaged with the one end in the multiple post portion；
The the second yoke portion engaged with the other end in the multiple post portion；With
Link the 3rd yoke portion in the first yoke portion and the second yoke portion,
The first yoke portion includes that multiple first splits yoke portion,
The second yoke portion includes that multiple second splits yoke portion,
Inductor unit is formed by the coil and through the post portion of the coil,
The yoke portion links together multiple inductor units.
9. inductor according to claim 1, it is characterised in that：
The yoke portion has：
The the first yoke portion engaged with the one end in the multiple post portion；
The the second yoke portion engaged with the other end in the multiple post portion；With
Link the 3rd yoke portion in the first yoke portion and the second yoke portion,
The first yoke portion includes the first segmentation yoke portion with post portion equal number,
The second yoke portion includes the second segmentation yoke portion with post portion equal number,
By the coil and the post portion and the described first segmentation yoke portion and the second segmentation yoke portion of the coil will be passed through to connect
Magnetic core unit obtained by conjunction forms inductor unit,
Multiple inductor units link together.
10. inductor according to claim 8 or claim 9, it is characterised in that：
The magnetic conductivity for forming the material in the post portion is lower than forming the magnetic conductivity of the material in the 3rd yoke portion.
11. inductors according to claim 9, it is characterised in that：
The first segmentation yoke portion and the second segmentation yoke portion are tabular.
12. inductors according to claim 9, it is characterised in that：
The first segmentation yoke portion and the second segmentation yoke portion are rectangle when the axle of the coil looks up.
13. inductors according to claim 9, it is characterised in that：
The first segmentation yoke portion and the second segmentation yoke portion are regular hexagon when the axle of the coil looks up.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621208770.6U CN206301670U (en) | 2016-10-31 | 2016-10-31 | Inductor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621208770.6U CN206301670U (en) | 2016-10-31 | 2016-10-31 | Inductor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107545974A (en) * | 2017-08-27 | 2018-01-05 | 宁夏银利电气股份有限公司 | A kind of Multiple coil composite magnetic circuit inductor group |
| CN108022716A (en) * | 2016-10-31 | 2018-05-11 | 株式会社田村制作所 | Inductor |
| WO2019010698A1 (en) * | 2017-07-14 | 2019-01-17 | 墨尚电子技术(上海)有限公司 | Reactor core and reactor thereof |
-
2016
- 2016-10-31 CN CN201621208770.6U patent/CN206301670U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108022716A (en) * | 2016-10-31 | 2018-05-11 | 株式会社田村制作所 | Inductor |
| WO2019010698A1 (en) * | 2017-07-14 | 2019-01-17 | 墨尚电子技术(上海)有限公司 | Reactor core and reactor thereof |
| CN110770860A (en) * | 2017-07-14 | 2020-02-07 | 墨尚电子技术(上海)有限公司 | Reactor magnetic core and reactor thereof |
| CN110770860B (en) * | 2017-07-14 | 2022-03-08 | 墨尚电子技术(上海)有限公司 | Reactor magnetic core and reactor thereof |
| US11430597B2 (en) * | 2017-07-14 | 2022-08-30 | Magsonder Innovation (Shanghai) Co., Ltd. | Inductor magnetic core and inductor using the same |
| CN107545974A (en) * | 2017-08-27 | 2018-01-05 | 宁夏银利电气股份有限公司 | A kind of Multiple coil composite magnetic circuit inductor group |
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