CN105408972B - Electronic unit - Google Patents
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- CN105408972B CN105408972B CN201480042011.4A CN201480042011A CN105408972B CN 105408972 B CN105408972 B CN 105408972B CN 201480042011 A CN201480042011 A CN 201480042011A CN 105408972 B CN105408972 B CN 105408972B
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- 239000004020 conductor Substances 0.000 claims abstract description 298
- 239000012212 insulator Substances 0.000 claims description 76
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 description 42
- 230000001629 suppression Effects 0.000 description 28
- 238000000034 method Methods 0.000 description 14
- 239000000919 ceramic Substances 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- 230000000630 rising effect Effects 0.000 description 7
- 229910052709 silver Inorganic materials 0.000 description 6
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000006071 cream Substances 0.000 description 2
- 229960004643 cupric oxide Drugs 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000480 nickel oxide Inorganic materials 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229910017518 Cu Zn Inorganic materials 0.000 description 1
- 229910017752 Cu-Zn Inorganic materials 0.000 description 1
- 229910017943 Cu—Zn Inorganic materials 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- DQMUQFUTDWISTM-UHFFFAOYSA-N O.[O-2].[Fe+2].[Fe+2].[O-2] Chemical compound O.[O-2].[Fe+2].[Fe+2].[O-2] DQMUQFUTDWISTM-UHFFFAOYSA-N 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 208000018875 hypoxemia Diseases 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0013—Printed inductances with stacked layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/0006—Printed inductances
- H01F17/0033—Printed inductances with the coil helically wound around a magnetic core
Abstract
The present invention provides the maximization for being capable of straining element, and the electronic unit that the temperature of straining element rises.It is provided with coil (L) in two coil-conductors portion in parallel (20) for being connected in parallel and forming of above-below direction arrangement and in three coil-conductors portion in parallel (22) for being connected in parallel and forming of above-below direction arrangement.The number in the portion in parallel (20) in time domain (A1) is overlooked from right side in the number of portion in parallel (20) and ratio shared in the total of the number of portion in parallel (22), than the ratio height shared by the adding up to of number and the number of portion in parallel (22) of the number in the portion in parallel (20) in time domain (A2) in portion in parallel (20) is overlooked from right side.
Description
Technical field
The present invention relates to electronic unit, more particularly, is related to laminated coil parts.
Background technology
As the conventional invention related with electronic unit, for example, as it is known that there is the electronic unit described in patent document 1.
This is electronic component-embedded by connecting multiple coil-conductors by via conductors the coil that forms.It is in addition, adjacent in stacked direction
Two coil-conductors be connected in parallel into same shape, and by via conductors.Described in patent document 1 as more than
In electronic unit, the DC resistance of coil is smaller, the fever in suppression coil, and the temperature for suppressing electronic unit rises.
However, in the electronic unit described in patent document 1, whole coil-conductors is connected in parallel two-by-two.Therefore, deposit
The length of the stacked direction of electronic unit is longer such the problem of.
Patent document 1：Japanese Unexamined Patent Publication 11-260644 publications (Figure 36)
The content of the invention
Therefore, it is an object of the invention to provide the maximization for being capable of straining element, and the temperature of straining element rises
Electronic unit.
Electronic unit involved by the mode of the present invention is characterized in that possessing：Layered product, it is in stacked direction layer
The layered product for the rectangular-shape folded multiple insulator layers and formed, the outer rim that above-mentioned layered product has above-mentioned multiple insulator layers connect
Connect the first side to be formed；Coil, it is to be arranged on above-mentioned layered product and by being connected by penetrating through above-mentioned insulator layer via conductors
The coil for connecing multiple coil-conductors and forming, above-mentioned coil are the helical forms advanced while rotating in stacked direction；First
Outer electrode, it is arranged at above-mentioned first side；And second outer electrode, it sets compared with above-mentioned first outer electrode
The opposite side in stacked direction is put, and is arranged at above-mentioned first side, first is provided with simultaneously in above-mentioned coil
Connection portion and the second parallel connection portion, at least one of the m above-mentioned coil-conductors that above-mentioned first parallel connection portion arranges in the stacking direction
Divide and be connected in parallel and form, at least a portion of the n that above-mentioned second parallel connection portion arranges in the stacking direction above-mentioned coil-conductors
It is connected in parallel and forms, m and n is natural number, and n is bigger than m, with above-mentioned the when from the normal direction of above-mentioned first side vertical view
The number in the above-mentioned first parallel connection portion in the first area that one outer electrode overlaps is in the number in the first parallel connection portion and above-mentioned the
The number in two parallel connection portions it is total in shared ratio, than when being overlooked from the normal direction of the first side not with this outside first
The number in the above-mentioned first parallel connection portion in the second area that portion's electrode and above-mentioned second outer electrode overlap is in first parallel connection
The number in portion and the number in above-mentioned second parallel connection portion it is total in shared ratio it is high.
In accordance with the invention it is possible to the maximization of straining element, and the temperature of straining element rises.
Brief description of the drawings
Fig. 1 is the stereoscopic figure of electronic unit.
Fig. 2 is the exploded perspective view of the layered product of electronic unit.
Fig. 3 is the sectional structure chart on the A-A of the electronic unit of Fig. 1.
Fig. 4 A are the exploded perspective views of the layered product of the electronic unit involved by second embodiment.
Fig. 4 B are the exploded perspective views of the layered product of the electronic unit involved by second embodiment.
Fig. 4 C are the sectional structure charts on the A-A of the electronic unit of Fig. 1.
Fig. 4 D are the sectional structure charts on the A-A of the electronic unit of Fig. 1.
Fig. 5 is the exploded perspective view of a part for the layered product of the electronic unit involved by first variation.
Fig. 6 is the exploded perspective view of a part for the layered product of the electronic unit involved by the second variation.
Embodiment
(first embodiment)
(structure of electronic unit)
Hereinafter, the structure of the electronic unit 10a involved by first embodiment is illustrated referring to the drawings.Fig. 1 is electricity
The stereoscopic figure of subassembly 10a~10f.Fig. 2 is the exploded perspective view of the layered product 12 of electronic unit 10a.Fig. 3 is Fig. 1
The sectional structure chart of the A-A of electronic unit 10a.In addition, in figure 3, attached drawing becomes cumbersome in order to prevent, layered product 12 is omitted
Hachure.Hereinafter, stacked direction is defined as above-below direction, when will be overlooked from upside, the direction of the both sides extension of layered product 12
It is defined as anteroposterior direction and left and right directions.
As shown in Figure 1 and Figure 2, electronic unit 10a possesses layered product 12, outer electrode 14a, 14b, coil L and leads to
Hole conductor v1~v3, v57~v60.
Layered product 12 is in rectangular-shape, stack gradually insulator layer 16a~16z, 16aa~16nn from the upper side to the lower side and
Form.Layered product 12 have above, below, above, the back side, the right side and the left side.As shown in Fig. 2, insulator layer 16a~16z,
16aa~16nn is rectangle, for example, being made up of the magnetic material being made of Ni-Cu-Zn based ferrites.Hereinafter, will
Insulator layer 16a~16z, the face of upside of 16aa~16nn be known as surface, by insulator layer 16a~16z, 16aa~16nn
The face of downside is known as the inside.It is the surface of insulator layer 16a above layered product 12.It is insulator layer below layered product 12
The inside of 16nn.Before layered product 12, the back side, the right side and the left side by insulator layer 16a~16z, 16aa~16nn it is outer
Edge connects to be formed.
Outer electrode 14a is across above and four with abutting above sides (above, the back side, the right side and the left side) set
Put.That is, the entirety of outer electrode 14a coverings above, and cover a part for four sides.But as long as outer electrode 14a extremely
Before being arranged on less.
Outer electrode 14b be arranged on compared with outer electrode 14a downside, also, across it is following and with following adjoining four
A side (above, the back side, the right side and the left side) is set.That is, outer electrode 14b covers following entirety, and covers four
A part for side.But as long as before outer electrode 14b is arranged at.
Coil L from upside when overlooking into the helical form counterclockwise rotated and advance towards downside, including coil-conductor
18a~18z, 18aa~18hh and via conductors v4~v56.Coil-conductor 18a~18z, 18aa~18hh and through hole are led
Body v4~v56 using Ag of the conductive material of principal component for example by being made.
As shown in Fig. 2, when coil-conductor 18a~18z, 18aa~18hh are overlooked from upside, overlap and formed along exhausted
Edge body layer 16a~16z, 16aa~16nn outer rim rectangle (ring-type) track R.That is, two sides of the left and right of track R with
Insulator layer 16a~16z, 16aa~16nn left and right two sides it is parallel, front and rear two side of track R and insulator layer
16a~16z, front and rear two side of 16aa~16nn are parallel.
Coil-conductor 18a~18z, 18aa~18hh are separately positioned on insulator layer 16d~16z, 16aa~16kk
On surface, and rotating linear conductor counterclockwise.Coil-conductor 18a~18z, 18aa~18hh have the length of 1/2 week.Specifically
For, coil-conductor 18a, 18b, 18e, 18f, 18i~18k, 18o~18q, 18u~18w, 18aa, 18bb, 18ee, 18ff
With the left side of track R while and rear side while overlap.Coil-conductor 18c, 18d, 18g, 18h, 18l~18n, 18r~18t,
18x~18z, 18cc, 18dd, 18gg, 18hh and the right side of track R while and front side while overlap.Hereinafter, bow from upside
During depending on coil-conductor 18a~18z, 18aa~18hh, the end of upstream side counterclockwise is known as upstream end, under counterclockwise
The end of trip side is known as downstream.
Via conductors v4 penetrates through insulator layer 16d, the upstream end of connection coil-conductor 18a and coil-conductor in above-below direction
The upstream end of 18b.Via conductors v5 penetrates through insulator layer 16d, the downstream of connection coil-conductor 18a and coil in above-below direction
The downstream of conductor 18b.Thus, arranged in above-below direction and there are the two coil-conductor 18a and coil-conductor of same shape
18b is connected in parallel with each other, and forms parallel connection portion 20a.
Via conductors v6 penetrates through insulator layer 16e, the downstream of connection coil-conductor 18b and coil-conductor in above-below direction
The upstream end of 18c.
Via conductors v7, v8 are identical with via conductors v4, v5, are connected in parallel coil conductor 18c, 18d.Thus, coil is led
Body 18c, 18d form parallel connection portion 20b.
Via conductors v9 penetrates through insulator layer 16g, the downstream of connection coil-conductor 18d and coil-conductor in above-below direction
The upstream end of 18e.
Via conductors v10, v11 are identical with via conductors v4, v5, are connected in parallel coil conductor 18e, 18f.Thus, coil
Conductor 18e, 18f form parallel connection portion 20c.
Via conductors v12 penetrates through insulator layer 16i in above-below direction, and the downstream of connection coil-conductor 18f is led with coil
The upstream end of body 18g.
Via conductors v13, v14 are identical with via conductors v4, v5, are connected in parallel coil conductor 18g, 18h.Thus, coil
Conductor 18g, 18h form parallel connection portion 20d.
Via conductors v15 penetrates through insulator layer 16k in above-below direction, and the downstream of connection coil-conductor 18h is led with coil
The upstream end of body 18i.
Via conductors v16 penetrates through insulator layer 16l in above-below direction, and the upstream end of connection coil-conductor 18i is led with coil
The upstream end of body 18j.Via conductors v17 penetrates through insulator layer 16l in above-below direction, the downstream of connection coil-conductor 18i with
The downstream of coil-conductor 18j.Via conductors v18 penetrates through insulator layer 16m in above-below direction, and connection coil-conductor 18j's is upper
Swim end and the upstream end of coil-conductor 18k.Via conductors v19 penetrates through insulator layer 16m in above-below direction, connects coil-conductor
The downstream of 18j and the downstream of coil-conductor 18k.Thus, arranged in above-below direction and there are three coils of same shape
Conductor 18i, coil-conductor 18j and coil-conductor 18k are connected in parallel with each other, and form parallel connection portion 22a.
Via conductors v20 penetrates through insulator layer 16n in above-below direction, and the downstream of connection coil-conductor 18k is led with coil
The upstream end of body 18l.
Via conductors v21~v24 is identical with via conductors v16~v19, is connected in parallel coil conductor 18l, 18m, 18n.By
This, coil-conductor 18l, 18m, 18n form parallel connection portion 22b.
Via conductors v25 penetrates through insulator layer 16q in above-below direction, and the downstream of connection coil-conductor 18n is led with coil
The upstream end of body 18o.
Via conductors v26~v29 is identical with via conductors v16~v19, is connected in parallel coil conductor 18o, 18p, 18q.By
This, coil-conductor 18o, 18p, 18q form parallel connection portion 22c.
Via conductors v30 penetrates through insulator layer 16t in above-below direction, and the downstream of connection coil-conductor 18q is led with coil
The upstream end of body 18r.
Via conductors v31~v34 is identical with via conductors v16~v19, is connected in parallel coil conductor 18r, 18s, 18t.By
This, coil-conductor 18r, 18s, 18t form parallel connection portion 22d.
Via conductors v35 penetrates through insulator layer 16w in above-below direction, and the downstream of connection coil-conductor 18t is led with coil
The upstream end of body 18u.
Via conductors v36~v39 is identical with via conductors v16~v19, is connected in parallel coil conductor 18u, 18v, 18w.By
This, coil-conductor 18u, 18v, 18w form parallel connection portion 22e.
Via conductors v40 penetrates through insulator layer 16z in above-below direction, and the downstream of connection coil-conductor 18w is led with coil
The upstream end of body 18x.
Via conductors v41~v44 is identical with via conductors v16~v19, is connected in parallel coil conductor 18x, 18y, 18z.By
This, coil-conductor 18x, 18y, 18z form parallel connection portion 22f.
Via conductors v45 penetrates through insulator layer 16cc in above-below direction, and the downstream of connection coil-conductor 18z is led with coil
The upstream end of body 18aa.
Via conductors v46 penetrates through insulator layer 16dd, the upstream end of connection coil-conductor 18aa and coil in above-below direction
The upstream end of conductor 18bb.Via conductors v47 penetrates through insulator layer 16dd, the downstream of connection coil-conductor 18aa in above-below direction
End and the downstream of coil-conductor 18bb.Thus, arranged in above-below direction and there are two coil-conductor 18aa of same shape
It is connected in parallel with each other with coil-conductor 18bb, forms parallel connection portion 20e.
Via conductors v48 penetrates through insulator layer 16ee, the downstream of connection coil-conductor 18bb and coil in above-below direction
The upstream end of conductor 18cc.
Via conductors v49, v50 are identical with via conductors v46, v47, are connected in parallel coil conductor 18cc, 18dd.Thus,
Coil-conductor 18cc, 18dd form parallel connection portion 20f.
Via conductors v51 penetrates through insulator layer 16gg, the downstream of connection coil-conductor 18dd and coil in above-below direction
The upstream end of conductor 18ee.
Via conductors v52, v53 are identical with via conductors v46, v47, are connected in parallel coil conductor 18ee, 18ff.Thus,
Coil-conductor 18ee, 18ff form parallel connection portion 20g.
Via conductors v54 penetrates through insulator layer 16ii, the downstream of connection coil-conductor 18ff and coil in above-below direction
The upstream end of conductor 18gg.
Via conductors v55, v56 are identical with via conductors v46, v47, are connected in parallel coil conductor 18gg, 18hh.Thus,
Coil-conductor 18gg, 18hh form parallel connection portion 20h.
As described above, coil L is provided with portion 20a~20h in parallel, 22a~22f.Hereinafter, the portion of general name parallel connection sometimes
20a~20h, 22a~22f are parallel connection portion 20,22.
Via conductors v1~v3 penetrates through insulator layer 16a~16c in above-below direction respectively, and is connected with each other so as to form one
A via conductors.In addition, the upstream end of via conductors v1~v3 connection outer electrode 14a and coil-conductor 18a.
Via conductors v57~v60 penetrates through insulator layer 16kk~16nn in above-below direction respectively, and is connected with each other so as to structure
Into a via conductors.In addition, the downstream of via conductors v57~v60 connection outer electrode 14b and coil-conductor 18hh.
In the electronic unit 10a formed as described above, as shown in figure 3, will bow from front side (normal direction above)
Apparent time is respectively defined as region A1, A3 with outer electrode 14a, 14b region overlapped.In addition, when will be overlooked from front side not with outside
The region that portion electrode 14a, 14b are overlapped is defined as region A2.Here, the region overlapped when being overlooked from front side with outer electrode 14a
Be from the upper surface of layered product 12 into outer electrode 14a forwardly, the lower end of part turned back of the back side, the right side and the left side it
Between region.In addition, with the outer electrode 14b regions overlapped it is to outer electrode below layered product 12 when being overlooked from front side
Region in 14b forwardly, between the upper end of part turned back of the back side, the right side and the left side.
In the A1 of region, the number in parallel connection portion 20 is more compared with the number in portion 22 in parallel, the line in portion 22 in parallel with composition
The number for enclosing conductor is more compared to the number for the coil-conductor for forming parallel connection portion 20.In the present embodiment, coil L is in region A1
In be only made of portion 20 in parallel.
In the A3 of region, the number in parallel connection portion 20 is more compared with the number in portion 22 in parallel, the line in portion 22 in parallel with composition
The number for enclosing conductor is more compared to the number for the coil-conductor for forming parallel connection portion 20.In the present embodiment, coil L is in region A3
In be only made of portion 20 in parallel.
On the other hand, in the A2 of region, the number in parallel connection portion 22 is more compared with the number in portion 20 in parallel, in parallel with composition
The number of the coil-conductor in portion 20 is more compared to the number for the coil-conductor for forming parallel connection portion 22.In the present embodiment, coil L
Be made of two parallel connection portions 20 and six parallel connection portions 22, specifically, in the A2 of region by portion 20d, 20e, 22a in parallel~
22f is formed.Therefore, in region, A2 includes the coil-conductor of four composition parallel connection portions 20d, 20e, and includes 18 compositions
The coil-conductor of portion 22a~22f in parallel.
In the A1~A3 of region, portion 20,22 in parallel by configuring as described above, the number in the portion in parallel 20 in the A1 of region
In the number in portion 20 in parallel with the first ratio shared in the total of the number in portion 22 in parallel than the portion in parallel 20 in the A2 of region
Number is high in the number in portion 20 in parallel and the second ratio shared in the total of the number in portion 22 in parallel.In the present embodiment,
First ratio is 1 (=3/3), and the second ratio is 0.25 (=2/8).In addition, the number in the portion in parallel 20 in the A3 of region is in parallel connection
The number in portion 20 and the number in portion 22 in parallel it is total in shared the 3rd ratio exist than the number in the portion in parallel 20 in the A2 of region
The number in portion 20 in parallel and the number in portion 22 in parallel it is total in shared second ratio it is high.In the present embodiment, the 3rd ratio
Example is 1 (=3/3), and the second ratio is 0.25 (=2/8).
(manufacture method of electronic unit)
The manufacture method of the electronic unit 10a to forming as described above illustrates referring to the drawings.
First, insulator layer 16a~16z, the ceramic green sheet of 16aa~16nn that become shown in Fig. 2 are formed.Specifically
For, di-iron trioxide (Fe will be weighed with defined ratio2O3), zinc oxide (ZnO) and cupric oxide (CuO) and nickel oxide
(NiO) each material after puts into ball mill as raw material, and carries out wet type reconciliation.Carried out after the mixture drying made
Crush, and with 800 DEG C of calcinings, one hour obtained powder.After the calcined powder that ball mill case of wet attrition obtains, done
Crushed after dry, obtain ferrite ceramics powder.
To the ferrite ceramics powder add bonding agent (vinyl acetate, water-soluble acrylic etc.), plasticizer, wetting agent,
Dispersant is simultaneously mixed using ball mill, thereafter, deaeration is carried out by depressurizing.The pottery that will be obtained on slide glass by knife coating
Porcelain slurry is formed as sheet and makes its drying, and being made become insulator layer 16a~16z, the ceramic green sheet of 16aa~16nn.
Next, should become insulator layer 16a~16z, 16aa~16nn ceramic green sheet each formation through hole
Conductor v1~v60.Specifically, corresponding this becomes insulator layer 16a~16z, the ceramic green sheet of 16aa~16nn irradiates laser
Beam forms through hole.Next, Ag, Pd, Cu, Au or their alloy etc. are filled to the through hole by printing the methods of coating
Conductive paste.
Next, form coil-conductor on the ceramic green sheet that should become insulator layer 16d~16z, 16aa~16kk
18a~18z, 18aa~18hh.Specifically, insulator layer 16d should become using the methods of silk screen print method, photoetching process
Applied on the ceramic green sheet of~16z, 16aa~16kk coated with the conduction that Ag, Pd, Cu, Au or their alloy etc. are principal component
Cream, so as to form coil-conductor 18a~18z, 18aa~18hh.In addition, formation coil-conductor 18a~18z, 18aa~18hh
Process and to through hole filling conductive paste process can also be carried out in identical process.
Next, as shown in Fig. 2, stack gradually, crimp should become insulator layer 16a~16z, the pottery of 16aa~16nn
Porcelain raw cook.Should become insulator layer 16a~16z, 16aa~16nn ceramic green sheet stacking, be crimped on stratum one by one
After folded and pre-crimping, pressurizeed by hydrostatic pressing press machine etc. to unfired mother layer stack formally to be crimped.By
This, obtains unfired mother layer stack.
Next, the layered product 12 by bite by the cutting of mother layer stack for given size.Thus obtain unfired
Layered product 12.Unsticking mixture process and firing are carried out to the unfired layered product 12.Unsticking mixture process is for example, in hypoxemia
Carried out two hours with 500 DEG C of condition in environment gas.Fire for example, when small with 870 DEG C~900 DEG C of condition progress 2.5.
Next, implementing tumbling to layered product 12, edging is carried out.Thereafter, on the surface of layered product 12, for example, logical
The methods of crossing infusion process coats and sintering principal component is the electrode cream of silver, forms the silver that become outer electrode 14a, 14b
Electrode.The sintering of silver electrode is carried out one hour with 800 DEG C.
Finally, by implementing plating Ni and plating Sn on the surface of silver electrode, outer electrode 14a, 14b are formed.Via the above
Process, electronic unit 10a as shown in Figure 1 completes.
(effect)
According to the electronic unit 10a formed as described above, it is capable of the maximization of straining element, and the temperature of straining element
Rise.In more detail, in the electronic unit described in patent document 1, whole coil-conductors is connected in parallel two-by-two.This
Sample, if being connected in parallel the identical number of whole coil-conductors, although the temperature that can suppress electronic unit rises, electronics
The length of the stacked direction of component.
Therefore, in electronic unit 10a, rise in thermal diffusivity of a relatively high region A1, A3 with the temperature of element
Suppress the suppression of the maximization compared to priority elements, the suppression in the relatively low region A2 of thermal diffusivity with the maximization of element
The suppression risen compared to the temperature of priority elements.In more detail, region A1, A3 be when being overlooked from front side and outer electrode 14a,
The region that 14b is overlapped.In addition, the region that region A2 is not overlapped when being and being overlooked from front side with outer electrode 14a, 14b.Outer electrode
In general 14a, 14b are made of metal, so with higher thermal diffusivity.Therefore, in electronic unit 10a, region A1, A3
In thermal diffusivity it is higher than the thermal diffusivity in the A2 of region.
In addition, three coil-conductors are connected in parallel in portion 22a~22f in parallel, it is in parallel in portion 20a~20h in parallel to connect
Connect two coil-conductors.Therefore, the DC resistance in portion 22a~22f in parallel is than the D.C. resistance in portion 20a~20h in parallel
It is worth small.That is, the caloric value in portion 22a~22f in parallel is fewer than the caloric value in portion 20a~20h in parallel.
In addition, in portion 20a~20h in parallel, two coil-conductors are connected in parallel, it is in parallel in portion 22a~22f in parallel
Connect three coil-conductors.Therefore, upper and lower of the width of the above-below direction of portion 20a~20h in parallel than portion 22a~22f in parallel
To width it is small.In this way, in portion 20 in parallel, the suppression of the maximization of priority elements compared with the suppression that the temperature of element rises
System.In portion 22 in parallel, the suppression of the temperature rising of priority elements compared with the suppression of the maximization of element.
Therefore, in electronic unit 10a, the number and portion in parallel of the number in the portion in parallel 20 in the A1 of region in portion 20 in parallel
22 number it is total in shared the first ratio than the portion in parallel 20 in the A2 of region number portion 20 in parallel number with simultaneously
The number in connection portion 22 it is total in shared second ratio it is high.Also, the number in the portion in parallel 20 in the A3 of region is in portion 20 in parallel
Number and the number in portion 22 in parallel it is total in shared the 3rd ratio than the portion in parallel 20 in the A2 of region number in parallel connection
The number in portion 20 and the number in portion 22 in parallel it is total in shared second ratio it is high.
Thus, in region A1, A3, the ratio in portion 20 in parallel is of a relatively high so the suppression phase risen with the temperature of element
Than the suppression of the maximization of priority elements, in the A2 of region, the ratio in portion 20 in parallel is relatively low so maximization with element
Suppression compared to priority elements temperature rise suppression.As described above, in electronic unit 10a, according to layered product 12
The characteristic of region A1~A3, in region, the temperature of the suppression of the maximization of each middle priority elements of A1~A3 or element rises
Suppression any one.
In addition, in electronic unit 10a, by adjusting the number of portion 20a~20h in parallel and the number of parallel connection portion 22a~22f
Mesh, can adjust the impedance of coil L.Specifically, by increasing the number of portion 20a~20h in parallel, alternatively, reducing parallel connection portion
The number of 22a~22h, it is possible to increase the impedance of coil L.In addition, the number by reducing parallel connection portion 20a~20h, alternatively, increasing
The number of multi-parallel portion 22a~22h, can reduce the impedance of coil L.
(computer simulation)
The present application person is clearer and more definite in order to make the effect that electronic unit 10a is played, and has carried out computer described below
Simulation.In more detail, the first model with the structure shown in Fig. 2 is made, and is made with the portion in parallel 20 for exchanging Fig. 2
With the second model of the structure in portion 22 in parallel.That is, in the second model, the portion in parallel 20 of two coil-conductors is connected in parallel by simultaneously
The portion in parallel 22 of connection three coil-conductors of connection is clamped from above-below direction.In addition, it is made what coil was all made of portion 20 in parallel
3rd model, and the 4th model that coil is all made of portion 22 in parallel is made.Hereinafter, the model of the first model~the 4th is recorded
Condition.In addition, in the model of the first model~the 4th, the number of turn of coil is 16 circles.In addition, the first model~the 4th model
The length of left and right directions and length in the front-back direction are 0.5mm.In addition, the first model~the 4th model outer electrode 14a,
The shape and size of 14b is identical.
First model
The number of turns in the portion in parallel 20 of upside：4 circles
The number of the coil-conductor in the portion in parallel 20 of upside：16
The number of turns in portion 22 in parallel：8 circles
The number of the coil-conductor in portion 22 in parallel：48
The number of turns in the portion in parallel 20 of downside：4 circles
The number of the coil-conductor in the portion in parallel 20 of downside：16
Second model
The number of turns in the portion in parallel 22 of upside：4 circles
The number of the coil-conductor in the portion in parallel 22 of upside：24
The number of turns in portion 20 in parallel：8 circles
The number of the coil-conductor in portion 20 in parallel：32
The number of turns in the portion in parallel 22 of downside：4 circles
The number of the coil-conductor of the portion 222h in parallel of downside：24
3rd model
The number of turns in portion 20 in parallel：16 circles
The number of the coil-conductor in portion 20 in parallel：32
4th model
The number of turns in portion 22 in parallel：16 circles
The number of the coil-conductor in the portion in parallel 22 of upside：48
The present application person calculate more than as the model of the first model~the 4th above-below direction length.In addition, this
Apply for inventor for the model of the first model~the 4th, temperature during electric current of the computer to flowing through 1.3A is increased and transport
Calculate.Table 1 is the table for showing analog result.The temperature for being shown in Table 1 the model of the first model~the 4th rises, above-below direction
Value after length, inductance value and temperature rising divided by inductance value.In addition, temperature rises rises to base with the temperature of the second model
Accurate (100).In addition, temperature rise divided by inductance value after value also using the temperature of the second model rise divided by inductance value after value as
Benchmark (100).
[table 1]
According to table 1, the 3rd model is only made of the less parallel connection portion 20 of the width of the larger above-below direction of caloric value.Therefore,
Understand in the 3rd model, the length of above-below direction shortens, and temperature rises increase.On the other hand, the 4th model is only by generating heat
The portion in parallel 22 that the width of the smaller above-below direction of amount is larger is formed.Therefore, it is known that in the 4th model, temperature rises and diminishes, and
The length of above-below direction.
Therefore, in the first model and the second model, coil is made of portion 20 in parallel and parallel connection portion 22.Thus,
The rising of the temperature of one model and the second model is lower than the temperature rising of the 3rd model, also, than in the temperature of the 4th model
Rise.In addition, the length of the above-below direction of the first model and the second model is longer than the length of the above-below direction of the 3rd model, and
It is and shorter than the length of the above-below direction of the 4th model.That is, in the first model and the second model, with the 3rd model and
Four models are compared, and can obtain the balance of the suppression of the suppression of the maximization of element and the temperature rising of element.
Next, compare the first model and the second model.The length of the above-below direction of first model is upper with the second model
The equal length in lower direction.But the rising of the temperature of the second model of temperature-rise ratio of the first model is small.Therefore, it is known that pass through
Portion 20,22 in parallel is set to configure with simply mixing not as the second model, and according to region A1~A3 as the first model
Each characteristic configuration parallel connection portion 20,22, in the first model, be able to maintain that the length of above-below direction, and straining element
Temperature rises.According to the reasons why the above, in the first model, compared with the second model, the big of element can be more effectively realized
The suppression that the suppression of type and the temperature of element rise gets both.
In addition, according to table 1, for the value after temperature rising divided by inductance value, the first model is minimum.Therefore, it is known that
In the first model, the suppression that the temperature of the element of every 1 μ H (per unit inductance value) rises can be effectively realized.
(second embodiment)
Hereinafter, the structure of the electronic unit 10b involved by second embodiment is illustrated referring to the drawings.Fig. 4 A and
Fig. 4 B are the exploded perspective views of the layered product 12 of the electronic unit 10b involved by second embodiment.The appearance of electronic unit 10b
Stereogram quotes Fig. 1.
As shown in Figure 4A and 4B, electronic unit 10b possess layered product 12, outer electrode 14a, 14b, coil L and
Via conductors v1~v3, v74~v77.
Layered product 12 is in rectangular-shape, as shown in Figure 4A and 4B, insulator layer 16a is stacked gradually from upside to downside
~16z, 16aa~16mm is formed.The layered product 12 and insulator layer 16a~16z, 16aa~16mm of electronic unit 10b and electricity
The layered product 12 and insulator layer 16a~16z, 16aa~16nn of subassembly 10a is identical so omitting the description.In addition, electronics
Outer electrode 14a, 14b of component 10b are identical with outer electrode 14a, 14b of electronic unit 10a so omitting the description.
Into the helical form counterclockwise rotated and advance towards downside, including coil-conductor 18a when coil L is overlooked from upside
~18z, 18aa~18gg and via conductors v4~v73.Coil-conductor 18a~18z, 18aa~18gg and via conductors v4
~v73 using Ag of the conductive material of principal component for example, by being made.
As shown in Fig. 2, when being overlooked from upside, coil-conductor 18a~18z, 18aa~18gg overlap to be formed along insulation
Body layer 16a~16z, 16aa~16mm outer rim rectangle (ring-type) track R.That is, two sides of the left and right of track R with absolutely
Edge body layer 16a~16z, 16aa~16mm left and right two sides it is parallel, front and rear two side of track R and insulator layer 16a
Front and rear two side of~16z, 16aa~16mm is parallel.
Coil-conductor 18a~18z, 18aa~18gg are separately positioned on insulator layer 16d~16z, 16aa~16jj
On surface, and rotating linear conductor counterclockwise.Coil-conductor 18a~18z, 18aa~18gg have the length of 1/2 week respectively,
Including coil portion 18a-1~18z-1,18aa-1~18gg-1 and coil portion 18a-2~18z-2,18aa-2~
18gg-2.
Coil portion 18a-1,18d-2,18e-1,18h-2,18i-1,18j-1,18n-2,18o-1,18p-1,
18t-2,18u-1,18v-1,18z-2,18aa-1,18dd-2,18ee-1 are overlapped with the side of the rear side of track R.Coil
Portion 18a-2,18b-1,18e-2,18f-1,18i-2,18j-2,18k-1,18o-2,18p-2,18q-1,18u-
2nd, 18v-2,18w-1,18aa-2,18bb-1,18ee-2,18ff-1 are overlapped with the side in the left side of track R.Coil portion
18b-2,18c-1,18f-2,18g-1,18k-2,18l-1,18m-1,18q-2,18r-1,18s-1,18w-2,
18x-1,18y-1,18bb-2,18cc-1,18ff-2,18gg-1 are overlapped with the side of the front side of track R.Coil portion
18c-2,18d-1,18g-2,18h-1,18l-2,18m-2,18n-1,18r-2,18s-2,18t-1,18x-2,
18y-2,18z-1,18cc-2,18dd-1,18gg-2 are overlapped with the side on the right side of track R.Hereinafter, overlooked from upside
When coil-conductor 18a~18z, 18aa~18gg, the end of upstream side counterclockwise is known as upstream end, by downstream counterclockwise
The end of side is known as downstream.
Via conductors v4 penetrates through insulator layer 16d, the downstream of connection coil portion 18a-1 and coil in above-below direction
The upstream end of portion 18a-2 and the upstream end of coil portion 18b-1.Via conductors v5 penetrates through insulator layer 16d in above-below direction, even
Connect the downstream of coil portion 18a-2 and the downstream of coil portion 18b-1 and the upstream end of coil portion 18b-2.Thus, exist
The two coil portion 18a-2 and coil portion 18b-1 of above-below direction arrangement is connected in parallel with each other, and forms connection portion 20a.
Via conductors v6, v7 are identical with via conductors v4, v5, are connected in parallel coil portion 18b-2,18c-1.Thus, line
Circle portion 18b-2,18c-1 form parallel connection portion 20b.
Via conductors v8, v9 are identical with via conductors v4, v5, are connected in parallel coil portion 18c-2,18d-1.Thus, line
Circle portion 18c-2,18d-1 form parallel connection portion 20c.
Via conductors v10, v11 are identical with via conductors v4, v5, are connected in parallel coil portion 18d-2,18e-1.Thus,
Coil portion 18d-2,18e-1 form parallel connection portion 20d.
Via conductors v12, v13 are identical with via conductors v4, v5, are connected in parallel coil portion 18e-2,18f-1.Thus,
Coil portion 18e-2,18f-1 form parallel connection portion 20e.
Via conductors v14, v15 are identical with via conductors v4, v5, are connected in parallel coil portion 18f-2,18g-1.Thus,
Coil portion 18f-2,18g-1 form parallel connection portion 20f.
Via conductors v16, v17 are identical with via conductors v4, v5, are connected in parallel coil portion 18g-2,18h-1.Thus,
Coil portion 18g-2,18h-1 form parallel connection portion 20g.
Via conductors v18 penetrates through insulator layer 16k, the downstream of connection coil portion 18h-1 and coil in above-below direction
The upstream end of portion 18h-2 and the upstream end of coil portion 18i-1.Via conductors v19 penetrates through insulator layer 16k in above-below direction,
Connect the downstream and the downstream of coil portion 18i-1 and the upstream end of coil portion 18i-2 of coil portion 18h-2.Through hole is led
Body v20 penetrates through insulator layer 16l, the upstream end and the upstream of coil portion 18j-1 of connection coil portion 18i-1 in above-below direction
End.Via conductors v21 penetrates through insulator layer 16l, the downstream of connection coil portion 18i-1 and coil portion in above-below direction
The upstream end of 18i-2 and the downstream of coil portion 18j-1 and the upstream end of coil portion 18j-2.Thus, in above-below direction
Three coil portion 18h-2, coil portion 18i-1 and the coil portion 18j-1 of arrangement are connected in parallel with each other, and form parallel connection portion
22a。
Via conductors v21~v24 is identical with via conductors v18~v21, be connected in parallel coil portion 18i-2,18j-2,
18k-1.Thus, coil portion 18i-2,18j-2,18k-1 forms parallel connection portion 22b.
Via conductors v25~v28 is identical with via conductors v18~v21, be connected in parallel coil portion 18k-2,18l-1,
18m-1.Thus, coil portion 18k-2,18l-1,18m-1 forms parallel connection portion 22c.
Via conductors v28~v31 is identical with via conductors v18~v21, be connected in parallel coil portion 18l-2,18m-2,
18n-1.Thus, coil portion 18l-2,18m-2,18n-1 forms parallel connection portion 22d.
Via conductors v32~v35 is identical with via conductors v18~v21, be connected in parallel coil portion 18n-2,18o-1,
18p-1.Thus, coil portion 18n-2,18o-1,18n-1 forms parallel connection portion 22e.
Via conductors v35~v38 is identical with via conductors v18~v21, be connected in parallel coil portion 18o-2,18p-2,
18q-1.Thus, coil portion 18o-2,18p-2,18q-1 forms parallel connection portion 22f.
Via conductors v39~v42 is identical with via conductors v18~v21, be connected in parallel coil portion 18q-2,18r-1,
18s-1.Thus, coil portion 18q-2,18r-1,18s-1 forms parallel connection portion 22g.
Via conductors v42~v45 is identical with via conductors v18~v21, be connected in parallel coil portion 18r-2,18s-2,
18t-1.Thus, coil portion 18r-2,18s-2,18t-1 forms parallel connection portion 22h.
Via conductors v46~v49 is identical with via conductors v18~v21, be connected in parallel coil portion 18t-2,18u-1,
18v-1.Thus, coil portion 18t-2,18u-1,18t-1 forms parallel connection portion 22i.
Via conductors v49~v52 is identical with via conductors v18~v21, be connected in parallel coil portion 18u-2,18v-2,
18w-1.Thus, coil portion 18u-2,18v-2,18w-1 forms parallel connection portion 22j.
Via conductors v53~v56 is identical with via conductors v18~v21, be connected in parallel coil portion 18w-2,18x-1,
18y-1.Thus, coil portion 18w-2,18x-1,18y-1 forms parallel connection portion 22k.
Via conductors v56~v59 is identical with via conductors v18~v21, be connected in parallel coil portion 18x-2,18y-2,
18z-1.Thus, coil portion 18x-2,18y-2,18z-1 forms parallel connection portion 22l.
Via conductors v60 penetrates through insulator layer 16cc, the downstream of connection coil portion 18z-1 and line in above-below direction
The upstream end of circle portion 18z-2 and the upstream end of coil portion 18aa-1.Via conductors v61 penetrates through insulator layer in above-below direction
The downstream and the downstream of coil portion 18aa-1 and the upstream of coil portion 18aa-2 of 16cc, connection coil portion 18z-2
End.Thus, it is connected in parallel with each other, forms in parallel in the two coil portion 18z-2 and coil portion 18aa-1 of above-below direction arrangement
Portion 20h.
Via conductors v62, v63 are identical with via conductors v60, v61, are connected in parallel coil portion 18aa-2,18bb-1.By
This, coil portion 18aa-2,18bb-1 form parallel connection portion 20i.
Via conductors v64, v65 are identical with via conductors v60, v61, are connected in parallel coil portion 18bb-2,18cc-1.By
This, coil portion 18bb-2,18cc-1 form parallel connection portion 20j.
Via conductors v66, v67 are identical with via conductors v60, v61, are connected in parallel coil portion 18cc-2,18dd-1.By
This, coil portion 18cc-2,18dd-1 form parallel connection portion 20k.
Via conductors v68, v69 are identical with via conductors v60, v61, are connected in parallel coil portion 18dd-2,18ee-1.By
This, coil portion 18dd-2,18ee-1 form parallel connection portion 20l.
Via conductors v70, v71 are identical with via conductors v60, v61, are connected in parallel coil portion 18ee-2,18ff-1.By
This, coil portion 18ee-2,18ff-1 form parallel connection portion 20m.
Via conductors v72, v73 are identical with via conductors v60, v61, are connected in parallel coil portion 18ff-2,18gg-1.By
This, coil portion 18ff-2,18gg-1 form parallel connection portion 20n.
As described above, coil L is provided with portion 20a~20n in parallel, 22a~22l.Moreover, in portion 20a~20n in parallel
In, it is connected in parallel in a part (coil portion) for two coil-conductors of above-below direction arrangement.In addition, in portion 22a~22l in parallel
In, it is connected in parallel in a part (coil portion) for three coil-conductors of above-below direction arrangement.In addition, with portion 20a in parallel~
For each corresponding coil-conductor of 20n, 22a~22l when being overlooked from upside, the part beyond the coil portion being connected in parallel is simultaneously
It is misaligned.
Via conductors v1~v3 penetrates through insulator layer 16a~16c in above-below direction respectively, and is connected with each other so as to form one
A via conductors.In addition, the upstream end of via conductors v1~v3 connection outer electrode 14a and coil-conductor 18a.
Via conductors v74~v77 penetrates through insulator layer 16jj~16mm in above-below direction respectively, and is connected with each other so as to structure
Into a via conductors.In addition, the downstream of via conductors v74~v77 connection outer electrode 14b and coil-conductor 18gg.
It is identical with electronic unit 10a in the electronic unit 10b formed as described above, coil L in the A1 of region only by
Portion 20a~20c in parallel is formed.In addition, coil L is only made of in the A3 of region portion 20l~20n in parallel.On the other hand, coil L
It is made of in the A2 of region portion 20d~20g in parallel, 22a~22l, 20h~20k.Therefore, the number in the portion in parallel 20 in the A1 of region
Mesh is in the number in portion 20 in parallel with the first ratio shared in the total of the number in portion 22 in parallel than the portion in parallel 20 in the A2 of region
Number it is shared in the number in portion 20 in parallel and the total of the number in portion 22 in parallel the second ratio it is high.Also, in the A3 of region
Portion in parallel 20 number portion 20 in parallel number and the number in portion 22 in parallel it is total in shared the 3rd ratio compare region
The number in the portion in parallel 20 in A2 is high in the number in portion 20 in parallel and the second ratio shared in the total of the number in portion 22 in parallel.
It is identical with electronic unit 10a according to the electronic unit 10b formed as described above, it is capable of the large-scale of straining element
Change, and the temperature of straining element rises.
In addition, in electronic unit 10b, suppress to produce short circuit between coil-conductor.In more detail, in coil-conductor
It is different in the current potential for the coil portion that adjacent coil-conductor is not connected in parallel one another in 18a~18z, 18aa~18gg.Cause
This, in coil-conductor 18a~18z, 18aa~18gg, if the coil portion not being connected in parallel one another in adjacent coil-conductor
It is opposed via insulator layer, then there is the worry that Ion transfer is produced between these coil portions.Produced as a result, having between coil-conductor
The worry of raw short circuit.
Therefore, each included coil-conductor 18a~18z, the 18aa~18gg of portion 20a~20n in parallel, 22a~22l
When being overlooked from upside, part beyond the coil portion being connected in parallel is simultaneously misaligned.Thus, led in the adjacent coil of above-below direction
In body 18a~18z, 18aa~18gg, the coil portion that is not connected in parallel is simultaneously opposed not via insulator layer.As a result, suppress by
It is opposed via multiple insulating layers in the part not being connected in parallel, and produced in coil-conductor 18a~18z, 18aa~18gg short
Road.
(the 3rd embodiment)
Hereinafter, the structure of the electronic unit 10c involved by the 3rd embodiment is illustrated referring to the drawings.Fig. 4 C are figures
Sectional structure chart on the A-A of 1 electronic unit 10c.
Electronic unit 10c is being arranged on the number in each portion in parallel 20 and the number in parallel connection portion 22 of region A1~A3
Aspect is different from electronic unit 10a.
In electronic unit 10c, in region, A1 is disposed with portion 20a in parallel and parallel connection portion 22a from the upper side to the lower side.
Thus, it is arranged at parallel connection portion 20a in portion 20a, 22a in parallel of region A1 and is arranged on top side.In addition, in the A1 of region, it is in parallel
The number (one) in portion 20 is equal with the number of parallel connection portion 22 (one).
In region, A3 is disposed with portion 22h in parallel and parallel connection portion 20d from the upper side to the lower side.Thus, it is arranged at region
Parallel connection portion 20d is arranged on lower side in portion 20d, 22h in parallel of A3.In addition, in the A3 of region, the number (one) in portion 20 in parallel
It is equal with the number (one) in portion 22 in parallel.
In region, A2 is arranged in order from the upper side to the lower side sets parallel connection portion 20b, parallel connection portion 22b~22g and parallel connection portion
20c.Thus, it is arranged at parallel connection portion 20b in portion 20b, 20c, 22b in parallel~22g of region A2 and is arranged on top side.It is arranged at area
Parallel connection portion 20c is arranged on lower side in portion 20b, 20c, 22b in parallel~22g of domain A2.In addition, portion in parallel 22 in the A2 of region
Number (six) is more than the number (one) in the portion in parallel 22 in the A1 of region.(six) ratios of number in the portion in parallel 22 in the A2 of region
The number (one) in the portion in parallel 22 in the A3 of region is more.
In addition, using the set in the portion in parallel 20 of at least more than one continuously arranged in above-below direction as first group.
Specifically, portion 20a in parallel belongs to first group of G11.Portion 20b in parallel belongs to first group of G12.Portion 20c in parallel belongs to first group
G13.Portion 20d in parallel belongs to first group of G14.
In addition, using the set in the portion in parallel 22 of at least more than one continuously arranged in above-below direction as second group.
Specifically, portion 22a in parallel belongs to second group of G21.Portion 22b~22g in parallel belongs to second group of G22.Portion 22h in parallel belongs to second
Group G23.
The number of first group of G11~G14 as above is aggregated in more than four with the number of second group of G21~G23,
It is seven in the present embodiment.Moreover, first group of G11~G14 is alternately arranged with second group of G21~G23 in above-below direction.
In the present embodiment, according to first group of G11, second group of G21, first group of G12, second group of G22, first group of G13, second group
G23, the order of first group of G14 arrange from the upper side to the lower side.
It is identical with electronic unit 10a according to the electronic unit 10c formed as described above, it is capable of the large-scale of straining element
Change, and the temperature of straining element rises.
In addition, according to electronic unit 10c, due to it is following the reasons why, be also capable of the maximization of straining element, and straining element
Temperature rise.In electronic unit 10c, outer electrode 14a is covered above.Therefore, in the A1 of region, with close to above
Thermal diffusivity becomes higher.Therefore, near the upper end of region A1, can with the temperature of element rise suppress compared with priority elements
The suppression of maximization.Therefore, it is arranged in portion 20a, 22a in parallel of region A1, it is excellent compared with the suppression that the temperature of element rises
The portion 20a in parallel of the suppression of the maximization of first element is arranged on top side.Thus, being capable of straining element according to electronic unit 10c
Maximization, and straining element temperature rise.In addition, in the A3 of region, also can be real according to the reasons why identical with region A1
The suppression of the maximization of existing element, and realize the suppression that the temperature of element rises.
In addition, according to electronic unit 10c, according to the reasons why following, also it is capable of the maximization of straining element, and straining element
Temperature rise.In electronic unit 10c, outer electrode 14a is arranged on the upside of region A2.Therefore, in the A2 of region, with
Upward skidding and then thermal diffusivity raising.Therefore, can be compared with the suppression that the temperature of element rises near the upper end of region A2
The suppression of the maximization of priority elements.Therefore, it is arranged in portion 20b, 20c, 22b in parallel~22g of region A2, the temperature with element
The suppression that degree rises is arranged on top side compared to the portion 20b in parallel of the suppression of the maximization of priority elements.Thus, according to the ministry of electronics industry
Part 10c, is capable of the maximization of straining element, and the temperature of straining element rises.
4th embodiment)
Hereinafter, the structure of the electronic unit 10d involved by the 4th embodiment is illustrated referring to the drawings.Fig. 4 D are figures
Sectional structure chart on the A-A of 1 electronic unit 10d.
Electronic unit 10d is being arranged on the number in each portion in parallel 20 and the number in parallel connection portion 22 of region A1~A3
Aspect is different from electronic unit 10c.
In electronic unit 10d, in region, A1 is arranged in order from the upper side to the lower side sets parallel connection portion 20a, 20b and parallel connection
Portion 22a, 22b.Thus, it is arranged at parallel connection portion 20a in portion 20a, 20b, 22a, 22b in parallel of region A1 and is arranged on top side.Separately
Outside, in the A1 of region, the number (two) in portion 20 in parallel is equal with the number of parallel connection portion 22 (two).
In region, A3 is disposed with portion 22h, 22i in parallel and parallel connection portion 20d, 20e from the upper side to the lower side.Thus, if
It is placed in parallel connection portion 20e in portion 20d, 20e, 22h, 22i in parallel of region A3 and is arranged on lower side.In addition, in the A3 of region, it is in parallel
The number (two) in portion 20 is equal with the number (two) in parallel connection portion 22.
In region, A2 is arranged in order from the upper side to the lower side sets parallel connection portion 20c, parallel connection portion 22c~22g.Thus, it is arranged at
Parallel connection portion 20c is arranged on top side in portion 20c, 22c in parallel~22g of region A2.In addition, the number in the portion in parallel 22 in the A2 of region
Mesh (five) is more than the number (two) in the portion in parallel 22 in the A1 of region.The number (five) in the portion in parallel 22 in the A2 of region compares area
The number (two) in the portion in parallel 22 in the A3 of domain is more.Also, the number (two) in the portion in parallel 20 in the A1 of region is than in the A2 of region
Portion in parallel 20 number (one) it is more.The number (two) in the portion in parallel 20 in the A3 of region is than the portion in parallel 20 in the A2 of region
Number (one) is more.
It is identical with electronic unit 10a, 10c according to the electronic unit 10d formed as described above, it is capable of straining element
Maximization, and the temperature of straining element rises.
(first variation)
Hereinafter, the electronic unit 10e involved by first variation is illustrated referring to the drawings.Fig. 5 is first variation
The exploded perspective view of a part for the layered product 12 of involved electronic unit 10e.For the stereoscopic figure of electronic unit 10e
Quote Fig. 1.
In electronic unit 10a~10d, it is connected in parallel at least a portion of two coil-conductors of above-below direction arrangement
So as to form portion 20 in parallel, it is connected in parallel at least a portion of three coil-conductor of above-below direction arrangement so as to form parallel connection
Portion 22.
On the other hand, in electronic unit 10e, by being connected in two coil-conductors of above-below direction arrangement in parallel extremely
A few part forms portion 20 in parallel, at least a portion of four coil-conductors being arranged by being connected in above-below direction in parallel come
Form parallel connection portion 22.The portion in parallel 20 of electronic unit 10e is identical with the portion in parallel 20 of electronic unit 10b so omitting the description.
Coil-conductor 18a~18i is separately positioned on the surface of insulator layer 16a~16i, and rotating line counterclockwise
Shape conductor.Coil-conductor 18a~18i has the length of 1/2 week, including coil portion 18a-1~18i-1 and coil portion respectively
18a-2~18i-2.
Coil portion 18a-2,18b-1,18c-1,18d-1,18i-2 are overlapped with the side of the rear side of track R.Coil portion
18b-2,18c-2,18d-2,18e-1 are overlapped with the side in the left side of track R.Coil portion 18e-2,18f-1,18g-1,
18h-1 is overlapped with the side of the front side of track R.Coil portion 18a-1,18f-2,18g-2,18h-2,18i-1 and track R's
The side on right side overlaps.Hereinafter, when overlooking coil-conductor 18a~18j from upside, the end of upstream side counterclockwise is known as
You Duan, is known as downstream by the end in downstream counterclockwise.
Coil portion 18a-2,18b-1,18c-1,18d-1 are connected in parallel by via conductors, so as to form portion in parallel
22a.Coil portion 18b-2,18c-2,18d-2,18e-1 are connected in parallel by via conductors, so as to form portion 22b in parallel.
Coil portion 18e-2,18f-1,18g-1,18h-1 are connected in parallel by via conductors, so as to form portion 22c in parallel.Coil
18f-2,18g-2,18h-2,18i-1 are connected in parallel by via conductors in portion, so as to form portion 22d in parallel.
Parallel connection portion 22 as above can also be replaced into the portion in parallel 22 of electronic unit 10b.Although in addition, in Fig. 5
Insulator layer 16a~16j in insulator layer 16a~16j and Fig. 2 and Fig. 4 A addition of identical symbol for convenience, but
It is not same insulator layer.
(the second variation)
Hereinafter, the electronic unit 10f involved by the second variation is illustrated referring to the drawings.Fig. 6 is the second variation
The exploded perspective view of a part for the layered product 12 of involved electronic unit 10f.For the stereoscopic figure of electronic unit 10f
Quote Fig. 1.
Configuration aspects of the electronic unit 10f in portion 22 in parallel are different from electronic unit 10e.In more detail, coil-conductor
18a~18i is separately positioned on the surface of insulator layer 16a~16i, and rotating linear conductor counterclockwise.Coil-conductor
18a~18i has the length of 1/2 week, including coil portion 18a-1~18i-1 and coil portion 18a-2~18i-2 respectively.
Coil portion 18a-1,18b-1,18g-2,18h-2,18i-1,18j-1 are overlapped with the side of the rear side of track R.
Coil portion 18a-2,18b-2,18c-1,18d-1,18i-2,18j-2 are overlapped with the side in the left side of track R.Coil portion
18c-2,18d-2,18e-1,18f-1 are overlapped with the side of the front side of track R.Coil portion 18e-2,18f-2,18g-1,
18h-1 is overlapped with the side on the right side of track R.Hereinafter, will be counterclockwise upper when overlooking coil-conductor 18a~18j from upside
The end of trip side is known as upstream end, and the end in downstream counterclockwise is known as downstream.
Coil portion 18a-2,18b-2,18c-1,18d-1 are connected in parallel by via conductors, so as to form portion in parallel
22a.Coil portion 18c-2,18d-2,18e-1,18f-1 are connected in parallel by via conductors, so as to form portion 22b in parallel.
Coil portion 18e-2,18f-2,18g-1,18h-1 are connected in parallel by via conductors, so as to form portion 22c in parallel.Coil
18g-2,18h-2,18i-1,18j-1 are connected in parallel by via conductors in portion, so as to form portion 22d in parallel.
Parallel connection portion 22 as above can also be replaced into the portion in parallel 22 of electronic unit 10b.Although in addition, in Fig. 6
Insulator layer 16a~16j in insulator layer 16a~16j and Fig. 2 and Fig. 4 A addition of identical symbol for convenience, but
It is not same insulator layer.
(other embodiments)
Electronic unit according to the present invention is not limited to above-mentioned electronic unit 10a~10f, within the scope of its subject matter
It can change.
In addition it is also possible to combine the structure of electronic unit 10a~10f.
In addition, in electronic unit 10a~10d, portion 20 in parallel is by being connected in parallel at least one of two coil-conductors
Divide and form, portion 22 in parallel is formed by being connected in parallel at least a portion of three coil-conductors.However, it is connected in parallel coil
It's not limited to that for the number of conductor.Portion 20 in parallel is formed by being connected in parallel at least a portion of m coil-conductor, in parallel
Portion 22 is formed by being connected in parallel at least a portion of n coil-conductor.At this time, it may be necessary to which m and n is natural number, and n compares m
Greatly.In addition, in the case of m=1, a coil-conductor is provided only with portion 20 in parallel.In this case, although coil-conductor is simultaneously
It is not connected in parallel, but for convenience, is known as the portion in parallel 20 for being connected in parallel a coil-conductor.
In addition, in electronic unit 10a, 10b, 10e, 10f, parallel connection portion 22 can also be set in region A1.In addition, in electricity
In subassembly 10a, 10b, 10e, 10f, parallel connection portion 20 can not also be set in region A2.
In addition it is also possible to the both ends of repeating coil L are set to draw with what outer electrode 14a, 14b were connected on insulator layer
Go out conductor.For example, in the electronic unit 10a shown in Fig. 2, coil L connects via via conductors v1~v3 and outer electrode 14a
Connect, coil L is connected via via conductors v57~v60 with outer electrode 14b.Via conductors v1~v3 can also be replaced, and is set
The conductor introduction drawn from the upstream end of coil-conductor 18a to the side on the right side of insulator layer 16d.It is equally possible that instead of
Via conductors v57~v60, and set and draw from the downstream of coil-conductor 18hh to what the side of the rear side of insulator layer 16kk was drawn
Go out conductor.In this case, conductor introduction is not a part of coil L, and protruded from cricoid track R.That is, in entirety and rail
Road R is coil-conductor in the case of overlapping, and is conductor introduction in the case where at least a portion is protruded from track R.
Situation additionally, there are portion 20,22 in parallel across two regions.For example, two coils that there is parallel connection portion 22 are set
Put in region A1, a coil in portion 22 in parallel is arranged on the situation of region A2.In this case, be arranged at region A1, A2 and
The number in connection portion 22 is showed using fraction.Specifically, the 1/3 of the parallel connection portion 22 is arranged at region A1, portion 22 in parallel
2/3 is arranged at region A2.It is same for portion 20 in parallel.
As described above, the present invention is useful to electronic unit, particularly, is being capable of the maximization of straining element, and suppress
It is excellent that the temperature of element rises this point.
The explanation of reference numeral
A1~A3 ... regions, L ... coils, 10a~10f ... electronic units, 12 ... layered products, 14a, 14b ... outer electrode,
16a~16z, 16aa~16nn ... insulator layers, 18a~18z, 18aa~18hh ... coil-conductors, 20a~20n, 22a~
22l ... portions in parallel.
Claims (11)
1. a kind of electronic unit, it is characterised in that possess：
Layered product, it is the layered product of the rectangular-shape formed in the multiple insulator layers of stacked direction stacking, above-mentioned layered product
Outer rim with above-mentioned multiple insulator layers connects the first side to be formed；
Coil, it is to be arranged on above-mentioned layered product and by connecting multiple coil-conductors by penetrating through above-mentioned insulator layer via conductors
And the coil formed, above-mentioned coil are the helical forms advanced while rotating in stacked direction；
First outer electrode, it is arranged at above-mentioned first side；And
Second outer electrode, it is arranged on the opposite side of stacked direction compared with above-mentioned first outer electrode, and at least sets
In above-mentioned first side,
Above-mentioned coil is provided with the first parallel connection portion and the second parallel connection portion, above-mentioned first parallel connection portion by arranging in the stacking direction
At least a portion of m above-mentioned coil-conductors of row is connected in parallel and forms, and above-mentioned second parallel connection portion passes through in the stacking direction
At least a portion of n above-mentioned coil-conductors of arrangement is connected in parallel and forms,
M and n is natural number,
N is bigger than m,
It is above-mentioned in the first area overlapped when being overlooked from the normal direction of above-mentioned first side with above-mentioned first outer electrode
The number in the first parallel connection portion the first parallel connection portion number and above-mentioned second parallel connection portion number it is total in shared ratio,
Than what is do not overlapped in the normal direction vertical view from the first side with first outer electrode and above-mentioned second outer electrode
The number in number with above-mentioned second in parallel portion of the number in the above-mentioned first parallel connection portion in second area in the first parallel connection portion
Shared ratio is high in total.
2. electronic unit according to claim 1, it is characterised in that
It is above-mentioned in the 3rd region overlapped when being overlooked from the normal direction of above-mentioned first side with above-mentioned second outer electrode
The number in the first parallel connection portion the first parallel connection portion number and above-mentioned second parallel connection portion number it is total in shared ratio,
Than what is do not overlapped in the normal direction vertical view from the first side with first outer electrode and above-mentioned second outer electrode
The number in number with above-mentioned second in parallel portion of the number in the above-mentioned first parallel connection portion in second area in the first parallel connection portion
Shared ratio is high in total.
3. the electronic unit according to claims 1 or 2, it is characterised in that
Above-mentioned coil is only made of in above-mentioned first area above-mentioned first parallel connection portion.
4. the electronic unit according to claims 1 or 2, it is characterised in that
In above-mentioned first parallel connection portion, the m above-mentioned coil-conductors with same shape are connected in parallel,
In above-mentioned second parallel connection portion, the n above-mentioned coil-conductors with same shape are connected in parallel.
5. the electronic unit according to claims 1 or 2, it is characterised in that
In above-mentioned first parallel connection portion, a part for the m above-mentioned coil-conductors arranged in the stacking direction is connected in parallel,
In above-mentioned second parallel connection portion, it is connected in parallel in a part for n above-mentioned coil-conductors of stacked direction arrangement,
When being overlooked from stacked direction, m corresponding with above-mentioned first parallel connection portion above-mentioned coil-conductors are respective to be connected in parallel
Part beyond part is misaligned,
When being overlooked from stacked direction, n corresponding with above-mentioned second parallel connection portion above-mentioned coil-conductors are respective to be connected in parallel
Part beyond part is misaligned.
6. the electronic unit according to claims 1 or 2, it is characterised in that
Above-mentioned coil-conductor forms cricoid track when being overlooked from stacked direction.
7. the electronic unit according to claims 1 or 2, it is characterised in that
Above-mentioned layered product has second of the opposite side positioned at the first surface of the side of stacked direction and positioned at stacked direction
Surface,
Above-mentioned first outer electrode is set across above-mentioned first surface and above-mentioned first side,
Above-mentioned second outer electrode is set across above-mentioned second surface and above-mentioned first side.
8. electronic unit according to claim 7, it is characterised in that
Be arranged at above-mentioned first area above-mentioned first parallel connection portion and above-mentioned second parallel connection portion in above-mentioned first parallel connection portion set
In stacked direction near above-mentioned side.
9. electronic unit according to claim 7, it is characterised in that
Be arranged at above-mentioned second area above-mentioned first parallel connection portion and above-mentioned second parallel connection portion in above-mentioned first parallel connection portion set
In stacked direction near above-mentioned side.
10. electronic unit according to claim 8, it is characterised in that
Be arranged at above-mentioned second area above-mentioned first parallel connection portion and above-mentioned second parallel connection portion in above-mentioned first parallel connection portion set
In stacked direction near above-mentioned side.
11. the electronic unit according to claims 1 or 2, it is characterised in that
Using in the set in the more than one above-mentioned first parallel connection portion that stacked direction arranges as first group,
Using in the set in the more than one above-mentioned second parallel connection portion that stacked direction arranges as second group,
Above-mentioned first group of number is aggregated in more than four with above-mentioned second group of number,
Above-mentioned first group is alternately arranged in the stacking direction with above-mentioned second group.
Applications Claiming Priority (3)
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| JP2013-168104 | 2013-08-13 | ||
| JP2013168104 | 2013-08-13 | ||
| PCT/JP2014/070681 WO2015022889A1 (en) | 2013-08-13 | 2014-08-06 | Electronic component |
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| CN105408972B true CN105408972B (en) | 2018-04-13 |
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| JP7215327B2 (en) * | 2019-05-24 | 2023-01-31 | 株式会社村田製作所 | Laminated coil parts |
| JP7259545B2 (en) * | 2019-05-24 | 2023-04-18 | 株式会社村田製作所 | Laminated coil parts |
| JP7260015B2 (en) * | 2019-05-24 | 2023-04-18 | 株式会社村田製作所 | Laminated coil components and bias tee circuits |
| JP7020455B2 (en) * | 2019-05-24 | 2022-02-16 | 株式会社村田製作所 | Laminated coil parts |
| JP7260016B2 (en) * | 2019-05-24 | 2023-04-18 | 株式会社村田製作所 | Laminated coil parts |
| JP7020532B2 (en) * | 2020-11-24 | 2022-02-16 | 株式会社村田製作所 | Laminated coil parts |
| JP2022133015A (en) * | 2021-03-01 | 2022-09-13 | Tdk株式会社 | Laminated coil part |
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| JP2001044038A (en) * | 1999-08-03 | 2001-02-16 | Taiyo Yuden Co Ltd | Laminated electronic component |
| JP5008926B2 (en) * | 2006-08-23 | 2012-08-22 | Ｔｄｋ株式会社 | Multilayer inductor and method of adjusting inductance of multilayer inductor |
| JP2009094149A (en) * | 2007-10-04 | 2009-04-30 | Hitachi Metals Ltd | Multilayered inductor |
| JP4780175B2 (en) * | 2008-10-30 | 2011-09-28 | 株式会社村田製作所 | Electronic components |
| JP5223821B2 (en) * | 2009-08-28 | 2013-06-26 | Ｔｄｋ株式会社 | Multilayer electronic components |
| JP5365420B2 (en) * | 2009-08-28 | 2013-12-11 | Ｔｄｋ株式会社 | Multilayer electronic components |
| WO2011145517A1 (en) * | 2010-05-19 | 2011-11-24 | 株式会社村田製作所 | Electronic component |
| JP5288025B2 (en) * | 2012-04-27 | 2013-09-11 | Ｔｄｋ株式会社 | Multilayer inductor and method of adjusting inductance of multilayer inductor |
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| Publication number | Publication date |
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| WO2015022889A1 (en) | 2015-02-19 |
| JP6044716B2 (en) | 2016-12-14 |
| JPWO2015022889A1 (en) | 2017-03-02 |
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