CN101499363A - Common mode filter, and manufacturing method of common mode filter - Google Patents
Common mode filter, and manufacturing method of common mode filter Download PDFInfo
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- CN101499363A CN101499363A CNA2008101667905A CN200810166790A CN101499363A CN 101499363 A CN101499363 A CN 101499363A CN A2008101667905 A CNA2008101667905 A CN A2008101667905A CN 200810166790 A CN200810166790 A CN 200810166790A CN 101499363 A CN101499363 A CN 101499363A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- 238000004804 winding Methods 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims description 50
- 238000009413 insulation Methods 0.000 claims description 22
- 239000004020 conductor Substances 0.000 claims description 7
- 238000009434 installation Methods 0.000 description 19
- 239000012212 insulator Substances 0.000 description 17
- 230000015572 biosynthetic process Effects 0.000 description 14
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/045—Fixed inductances of the signal type with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/041—Printed circuit coils
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- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The invention provides a common mode filter obtaining a great direct current overlapping characteristic and manufacturing thereof. A flange portion (23) respectively divides the first line spool (20 (1)), the second line spool (20 (2)) into the primary side and secondary side; a lead (30) respectively are winding the primary side and secondary side by two pieces in sum. One end (30A) of the lead (A) is winded on the core portion (21) of the first line spool (20 (1)); another end (30B) is winded on the core portion (21) of the first line spool (20 (2)); the middle portion are arranged on the first line spool (20 (1)) and the second line spool (20 (2)).
Description
Technical field
The present invention relates to common-mode filter, relate in particular to core body and be located at opposed a pair of described limit portion respectively and twine the common-mode filter of the bobbin of 2 leads with roughly " mouth " word shape that forms 4 limit portions.
Background technology
Have by having as common-mode filter is known: with the core body of the roughly square shape shape of 4 limit portions and rotatably mounted and twine the coil component that the bobbin of lead constitutes by this limit portion.Bobbin is located at respectively in the opposite side portion of mutual opposed core body one by one, is rotatably being supported by limit portion as rotating shaft with this limit portion of core body.
Bobbin possess the volume core that roughly forms cylindrical shape and be located at an end of volume core and the other end on and towards the volume core stretch out the generally perpendicularly outstanding flange part of direction, can split the branchs formation of ceding territory along the divisional plane of rotating shaft.One end of volume core and the flange part of the other end have pitch wheel.The limit portion of core body is configured in the state of the shaft core position of bobbin, mutually split a pair of bobbin of shape ground connection connection by making divisional plane, ring-type is installed the limit portion of core body, so it is configured in this limit portion.Formation is by making bobbin rotation with this state, can with lead by root be wrapped in formation on the volume core of each bobbin.Such coil component is for example opened in the flat 6-23231 communique (patent documentation 1) on the books at JP in fact.
, in common-mode filter in the past,, be difficult to obtain the overlapping characteristic of good direct current though can access good differential mode impedance frequency characteristic.
Summary of the invention
For this reason, the purpose of this invention is to provide a kind of common-mode filter of the good overlapping characteristic of direct current and manufacture method of this common-mode filter of obtaining.
For achieving the above object, the invention provides a kind of common-mode filter, it possesses: core body, it forms roughly square shape shape by 4 limit portions, first bobbin and second bobbin, its respectively ring-type opposed a pair of described limit portion is installed, have the volume core that twines lead, and an axial almost parallel of described volume core; Axial roughly centre position at the volume core of described first bobbin, described second bobbin is provided with insulation wall respectively, described insulation wall two is cut apart described first bobbin, described second bobbin respectively vertically, about described insulation wall, axial side with described first bobbin, described second bobbin is made as primary side respectively, and opposite side is made as secondary side; At described primary side and described secondary side 1 lead is set respectively, the described lead part near an end separately is wrapped on described first bobbin, part with the described lead close other end separately on the identical direction of the direction that is wrapped in described first bobbin with described part near an end is wrapped on described second bobbin, is erected on described first bobbin and described second bobbin.
Because at first bobbin, the axial roughly position intermediate of the volume core of second bobbin is provided with respectively first bobbin, second bobbin is two insulation walls of cutting apart respectively vertically, about insulation wall, first bobbin, the axial side of second line is respectively primary side, opposite side is respectively secondary side, 1 lead is set respectively on primary side and secondary side, the part near an end of each lead is wrapped on first bobbin, part with the close other end of each lead on the direction identical with the direction that will be wrapped in first bobbin near the part of an end is wrapped on second bobbin, be erected on first bobbin and second bobbin, so dispose lead, therefore the combination of primary side and secondary side improves, thereby can access the overlapping characteristic of good direct current.
Here, preferably, described first bobbin and described second bobbin are that rotating shaft is revolvably by the supporting of described limit portion with a described opposed opposite side portion respectively, be provided with gear on described insulation wall, its volume core with the volume core of described first bobbin, described second bobbin forms coaxial position relation respectively.
Because first bobbin and second bobbin are that rotating shaft is supported by limit portion revolvably with an opposed opposite side portion respectively, on insulation wall, be provided with gear, and it forms coaxial position relation respectively with the volume core of first bobbin, the volume core of second bobbin, therefore by making this gears engaged on the gear of the manufacturing installation of being located at common-mode filter, make the gear rotation, can make the rotation of first bobbin, second bobbin, lead is wrapped in respectively on the volume core of volume core, second bobbin of first bobbin.
In addition, preferred, be erected at each described conductor part and described insulation wall disposed adjacent on described first bobbin and described second bobbin.
Owing to be erected at each conductor part and insulation wall disposed adjacent on first bobbin and second bobbin, therefore when an end parts of removing lead and the other end partly remove with engaging of flange part, can prevent that the part of this lead from becoming the obstacle of pulling down.
In addition, the invention provides a kind of manufacture method of common-mode filter, it has: the operation of preparing the lead of specific length; The first bobbin winding working procedure, it is provided with in that the mode of opposed a pair of described limit portion that forms the core body of square shape shape roughly by 4 limit portions is installed with ring-type respectively, have the volume core of the described lead of winding and the axial almost parallel of described volume core respectively, has flange part respectively at described axial two ends, be provided with in the axial roughly position intermediate of described volume core described volume core two is divided on the flange part of first bobbin of insulation wall of primary side and secondary side and described first bobbin in second bobbin respectively vertically, one end parts of the described lead of buckle, make described first bobbin rotation with described limit portion as rotating shaft, described lead is wrapped on the volume core of described first bobbin; The second bobbin winding working procedure, on the flange part of described second bobbin, the other end part of the described lead of buckle makes described second bobbin to the direction of rotation rotation identical with described first bobbin with described limit portion as rotating shaft, described lead is wrapped on the volume core of described second bobbin.
Owing to have: the first bobbin winding working procedure, an end parts of buckle lead on the flange part of its first bobbin in first bobbin and second bobbin makes the rotation of first bobbin with limit portion as rotating shaft, lead is wrapped on the volume core of first bobbin; With the second bobbin winding working procedure, it engages the other end part of lead on the flange part of second bobbin, make second bobbin to the direction of rotation rotation identical with limit portion as rotating shaft with first bobbin, lead is wrapped on the volume core of second bobbin, therefore can be at the described primary side and the secondary side of insulation wall, the part near an end of each lead is wrapped on first bobbin, with the identical direction of direction that will be wrapped in first bobbin near the part of an end, the part of the close other end of each lead is wrapped on second bobbin, is erected on first bobbin and second bobbin.
Here, preferred, in described first bobbin winding working procedure or the described second bobbin winding working procedure or in described first bobbin winding working procedure and the described second bobbin winding working procedure, twine described lead simultaneously at described primary side and described secondary side respectively.
Owing in the first bobbin winding working procedure or the second bobbin winding working procedure or in the first bobbin winding working procedure and the second bobbin winding working procedure, twine lead simultaneously at primary side and secondary side respectively, therefore can shorten and twine the used time of lead.
In addition, the invention provides a kind of manufacture method of common-mode filter, it has: the operation of preparing the lead of specific length; Conductor wire end part buckle operation, it is provided with in that the mode of opposed a pair of described limit portion that forms the core body of square shape shape roughly by 4 limit portions is installed with ring-type respectively, have the volume core of the described lead of winding and the axial almost parallel of described volume core respectively, has flange part respectively at described axial two ends, described volume core axially two is being divided on the flange part of first bobbin of insulation wall of primary side and secondary side and described first bobbin in second bobbin respectively being provided with on the axial roughly position intermediate of described volume core, one end parts of the described lead of buckle partly is buckled in the other end of described lead on the flange part of described second bobbin; The lead winding working procedure, it makes described first bobbin rotation with described limit portion as rotating shaft, described lead is wrapped on the volume core of described first bobbin, simultaneously make described second bobbin to the direction of rotation rotation identical as rotating shaft, described lead is wrapped on the volume core of described second bobbin with described first bobbin with described limit portion.
Owing to have: conductor wire end part buckle operation, an end parts of engaging lead on the flange part of its first bobbin in first bobbin and second bobbin partly is fastened on the other end of lead on the flange part of second bobbin; With the lead winding working procedure, it makes the rotation of first bobbin with limit portion as rotating shaft, lead is wrapped on the volume core of first bobbin, make second bobbin to the direction of rotation rotation identical with limit portion as rotating shaft simultaneously with first bobbin, lead is wrapped on the volume core of second bobbin, therefore can shorten and twine the used time of lead, described primary side and secondary side at insulation wall, the part near an end of each lead is wrapped on first bobbin, be wrapped on second bobbin to the part of the direction identical, make wire erection on first bobbin and second bobbin the close other end of each lead with being wrapped in direction on first bobbin near the part of an end.
Here, preferred, in described lead winding working procedure, twine described lead simultaneously at described primary side and described secondary side respectively.Owing in the lead winding working procedure, twine lead simultaneously at primary side and secondary side respectively, therefore can shorten lead significantly and twine the time.
By above formation, the present invention can provide a kind of common-mode filter of the good overlapping characteristic of direct current and manufacture method of this common-mode filter of obtaining.
Description of drawings
Fig. 1 is the stereogram of the common-mode filter of expression embodiments of the present invention.
Fig. 2 is the vertical view of the common-mode filter of expression embodiments of the present invention.
Fig. 3 is the front view of the common-mode filter of expression embodiments of the present invention.
Fig. 4 is the right side view of the common-mode filter of expression embodiments of the present invention.
Fig. 5 is the cutaway view along the VI-VI line of Fig. 2.
Fig. 6 is the cutaway view along the V-V line of Fig. 2.
Fig. 7 is the cutaway view along the VII-VII line of Fig. 2.
Fig. 8 is illustrated in the manufacture method of common-mode filter of embodiments of the present invention, core body and bobbin is installed in the stereogram of the state on the manufacturing installation.
Fig. 9 is illustrated in the manufacture method of common-mode filter of embodiments of the present invention, near the part end of lead is fastened on the stereogram of the state on the flange part of first bobbin.
Figure 10 is illustrated in the manufacture method of common-mode filter of embodiments of the present invention, near the part other end of lead is fastened on the stereogram of the state on the flange part of second bobbin.
Figure 11 is illustrated in the manufacture method of common-mode filter of embodiments of the present invention, the stereogram of the state that near near the part part and the other end end of lead is drawn.
Figure 12 is illustrated in the manufacture method of common-mode filter of embodiments of the present invention, insulator foot is fixed on the stereogram of the state on the bobbin.
Figure 13 is the curve chart of result of the test of the common-mode filter of expression embodiments of the present invention.
Among the figure: 1-common-mode filter, 10-core body, 11-short leg, 12-long leg, 20-bobbin, 20 (1)-the first bobbins, 20 (2)-the second bobbins, 21-volume core, 22-flange part, 23-intermediate flange portion, 30-lead, 30A-an end, 30B-other end, 23D-gear.
Embodiment
Below, with reference to Fig. 1～Fig. 7 the common-mode filter of embodiments of the present invention is described.As shown in Figure 1, common-mode filter 1 possesses core body 10, bobbin 20, spiral 30, insulator foot 40.
Bobbin 20,20 has the volume core 21 (Fig. 7) that forms the general cylindrical shape shape respectively, as shown in Figure 7, disposes the long leg 12 of core body 10 respectively on the shaft core position of volume core 21, and the axis direction of volume core 21 is parallel to each other.An end and the other end at volume core 21 are respectively equipped with flange part 22 (Fig. 1 etc.).In addition, be provided with intermediate flange portion 23 at an end of volume core 21 and the centre position of the other end.Flange part 22, intermediate flange portion 23 along rolling up axially vertically stretching out of core 21, form roughly flange shape respectively.2 bobbins 20,20 form same shape respectively, therefore only a bobbin 20 (first bobbin 20 (1)) are described, and the explanation of relevant another bobbin 20 (second bobbin 20 (2)) is omitted.In addition, bobbin 20 owing to be formed centrally point-symmetric shape in the axial middle position of bobbin 20 with shaft core position is, therefore only describes the flange part 22-1 of an end of volume core 21, and the explanation of the flange part 22-2 of the relevant other end is omitted.The bobbin 20 of the downside that keeps left in Fig. 1 configuration is equivalent to first bobbin 20 (1), and the bobbin 20 of the upside of keeping right configuration is equivalent to second bobbin 20 (2).
The intermediate flange portion 23 of bobbin 20 as shown in Figure 1, has along vertical direction and is configured in a pair of intermediate flange portion interior plate 23A, the 23A of volume on the core 21 in parallel to each other.The interior plate 23A of intermediate flange portion except not forming breach 22e, forms the shape identical with interior plate 22B.Therefore, as shown in Figure 6, with interior plate 22B similarly, the part of the side face of the interior plate 23A of intermediate flange portion, the part on 4 limits that promptly is equivalent to the roughly quadrangle shape of the interior plate 23A of regulation intermediate flange portion, form tabular surface respectively, wherein a tabular surface forms flange part tabular surface 23B, and the tabular surface adjacent with this flange part tabular surface 23B forms base contact-making surface 23C.
As shown in Figure 1, between 2 the interior plate 23A of intermediate flange portion, 23A, be provided with gear 23D.Gear 23D and volume core 21 (Fig. 7) are provided with coaxially, constitute one with volume core 21, can rotate with volume core 21 one.Gear 23D, with when making common-mode filter 1, by with the gears engaged of the manufacturing installation of not shown common-mode filter, make the gear rotation of the manufacturing installation of not shown common-mode filter, gear 23D and the rotation of volume core 21 one, the mode that lead 30 can be wrapped on the volume core 21 constitutes.In addition, intermediate flange portion 23 with first bobbin 20 (1), second bobbin 20 (2) respectively two modes that are divided into primary side and secondary side constitute.Lower right side about the Fig. 1 in intermediate flange portion 23, the first bobbins 20 (1), second bobbin 20 (2) is equivalent to primary side, and the upper left side is equivalent to secondary side.In addition, intermediate flange portion 23 is equivalent to insulation wall.
Bobbin 20 is can two modes that are divided into 2 cut-off rule axial region 21-1,21-1 constitute at divisional plane 20-1A, the 20-1A (Fig. 6) that stretch out direction along the axle center of the volume core 21 of axial rotary.Cut-off rule axial region 21-1,21-1 form same shape respectively, by being bonded with each other at divisional plane 20-1A, 20-1A, constitute bobbin 20.Owing to constitute by forming so, set core body 10 for one and constitute, therefore when constituting, one compares with setting for core body 10 divisible and bobbin 20 set for, and can the good common-mode filter 1 of setting property.
On volume core 21, twine lead 30.As lead 30, for example adopt insulation to coat copper cash on every side.Lead 30 as Fig. 1, Fig. 2 and shown in Figure 7, is erected on first bobbin 20 (1) and second bobbin 20 (2), is wrapped in primary side, secondary side with pursuing root respectively, adds up to and twines 2.In more detail, the canoe of 1 lead 30 is: part is positioned near the distolateral flange part 22-1 of first bobbin 20 (1) near the one end 30A, be wrapped in from this flange part 22-1 towards intermediate flange portion 23 on the volume core 21, then be wrapped on the volume core 21 from middle flange part 23 towards flange part 22-1, then be wrapped on the volume core 21 from flange part 22-1 towards intermediate flange portion 23, then be wrapped on the volume core 21 from middle flange part 23 towards flange part 22-1, then be wrapped on the volume core 21 from flange part 22-1 towards intermediate flange portion 23, as shown in Figure 7, position and intermediate flange portion 23 are adjacent to set up from the upside of following side direction second bobbin 20 (2) of first bobbin 20 (1) near intermediate flange portion 23.The winding direction of lead 30 is from axially being seen as counterclockwise of volume core 21 shown in Figure 7.
Then, in second bobbin 20 (2), distolateral flange part 22-1 from middle flange part 23 towards bobbin 20 is wrapped on the volume core 21, then be wrapped on the volume core 21 towards intermediate flange portion 23 from one of bobbin 20 distolateral flange part 22-1, distolateral flange part 22-1 from middle flange part 23 towards bobbin 20 is wrapped on the volume core 21, then be wrapped on the volume core 21 towards intermediate flange portion 23 from one of bobbin 20 distolateral flange part 22-1, distolateral flange part 22-1 from middle flange part 23 towards bobbin 20 is wrapped on the volume core 21, and near a distolateral mode of flange part 22-1 that is positioned at second bobbin 20 (2) with near the part other end 30B of lead 30 is twined.The winding direction of lead 30 axially is seen as counterclockwise from volume core 21 shown in Figure 7.
Twine too for another root lead 30, promptly, part is positioned near another distolateral flange part 22-2 of first bobbin 20 (1) near the one end 30A, in first bobbin 20 (1), be wrapped in from this flange part 22-2 towards intermediate flange portion 23 on the volume core 21, then be wrapped on the volume core 21 from middle flange part 23 towards flange part 22-2, then be wrapped on the volume core 21 from flange part 22-2 towards intermediate flange portion 23, then be wrapped on the volume core 21 from middle flange part 23 towards flange part 22-2, then be wrapped in from flange part 22-2 towards intermediate flange portion 23 on the volume core 21, position and intermediate flange portion 23 are adjacent to set up from the upside of following side direction second bobbin 20 (2) of first bobbin 20 (1) near intermediate flange portion 23.So, owing to be adjacent to the part that configuration is erected at the lead 30,30 on first bobbin 20 (1) and second bobbin 20 (2) with intermediate flange portion 23, therefore as described later, engaging and when taking off, can prevent that these lead that sets up 30 parts from becoming the obstacle when taking off at the end 30A part of removing lead 30 and other end 30B part and flange part 22-1,22-2.
Then, in second bobbin 20 (2), another distolateral flange part 22-2 from middle flange part 23 towards bobbin 20 is wrapped on the volume core 21, then another the distolateral flange part 22-2 from bobbin 20 is wrapped on the volume core 21 towards intermediate flange portion 23, then another the distolateral flange part 22-2 from middle flange part 23 towards bobbin 20 is wrapped on the volume core 21, then another the distolateral flange part 22-2 from bobbin 20 is wrapped on the volume core 21 towards intermediate flange portion 23, then another the distolateral flange part 22-2 from middle flange part 23 towards bobbin 20 is wrapped on the volume core 21, and near the mode of another distolateral flange part 22-2 that is positioned at second bobbin 20 (2) with near the part other end 30B of lead 30 is twined.By winding lead 30 like this, the combination of the lead of primary side and the lead of secondary side is good, can obtain the overlapping characteristic of good direct current.
One end 30A of lead 30, other end 30B (Fig. 4 etc.) form terminal pins as user's terminal respectively.More particularly, near near part part, the other end 30B one end 30A of lead 30, stretch out towards insulator foot 4 described later from volume core 21, near near part part, the other end 30B one end 30A of lead 30, be stuck close in the breach 40a (Fig. 2) of insulator foot 40 described later, than this part that is engaging of lead 30 near the part of an end 30A, constitute terminal pins near the part of other end 30B.
Flange opposed faces 41 at insulator foot 40 is provided with hook 43 and rotation margining tablet 44.Hook 43, as shown in Figure 1 and Figure 2, respectively one by one with the vertically upright bight that is located at roughly OBL insulator foot 40 of flange opposed faces 41 near the position.At the front end of hook 43, be provided with hook portion 43A (Fig. 4 etc.) as shown in Figure 4, the dogging that hook portion 43A can be fastened on flange part 22 respectively one by one closes in the through hole 22d.
In addition, when so being fixed on core body 10, bobbin 20 and lead 30 on the insulator foot 40, the part of the flange opposed faces 41 of insulator foot 40 as Fig. 5, shown in Figure 6, constitutes contiguously with base contact-making surface 22D, 23C.Therefore, the dogging that the hook portion 43A of formation by hook 43 is fastened on flange part 22 closes in the through hole 22d, margining tablet tabular surface 44A contacts with flange part tabular surface 22C, 23B face, the part of the flange opposed faces 41 of insulator foot 40 contacts with base contact-making surface 22D, 23C, also can prevent the formation with respect to the rotation of the long leg 12 of core body 10 of bobbin 20 more reliably without adhesive.
In the manufacture method of common-mode filter, at first, prepare the lead 30 of 2 specific lengths.Here, so-called specific length is can be with primary side or the secondary side at first bobbin 20 (1) and second bobbin 20 (2) as previously mentioned, the length that the mode of setting up lead 30 respectively along this first bobbin 20 (1), second bobbin 20 (2) is twined.
Then, press from both sides long leg 12,12 respectively with cut-off rule axial region 20-1,20-1,20-1,20-1 across core body 10, divisional plane 20-1A is contacted each other, and long leg 12,12 becomes the shaft core position of first bobbin 20 (1), second bobbin 20 (2), so constitutes bobbin 20,20.Then, be placed on the manufacturing installation 1001 of common-mode filter shown in Figure 8, on the gear 1011 of this manufacturing installation 1001, mesh gear 23D, the 23D of intermediate flange portion 23,23 respectively.Then, as shown in Figure 9, a pair of core body support component 1012,1012 that makes manufacturing installation 1001 and core body 10 near and contact, can not be movably with respect to manufacturing installation 1001 fixing core body 10.
Then, carry out the first bobbin winding working procedure.In the first bobbin winding working procedure, as shown in Figure 9, at first, 2 leads 30,30 are hung on a pair of pulley 1013,1013 of manufacturing installation 1001, near a part end 30A, the 30A of lead 30,30 are hung on breach 22e, the 22e of flange part 22-1,22-2 of first bobbin 20 (1).Then, formation is to the state of lead 30,30 additional tensions, by gear 1011 rotations that make manufacturing installation 1001, make the gear 23D rotation of first bobbin 20 (1), thereby make 20 (1) rotations of first bobbin, with near the part end 30A of lead 30, promptly than the part that hangs over the close end 30A of part on the breach 22e, embed among the groove 22a of flange part 22-1,22-2, simultaneously with the part of lead 30, promptly, be wrapped in the primary side and the secondary side of volume core 21 respectively than the part that hangs over the close other end 30B of part on the breach 22e.Specifically be that forming a pair of pulley 1013,1013 can axially be separated from each other or approaching formation at it.By it being separated from each other or approaching, contact is twined for 5 times between intermediate flange portion 23 and flange part 22-1,22-2.It more than is the first bobbin winding working procedure.
Then, carry out the second bobbin winding working procedure.In the second bobbin winding working procedure, at first, as shown in figure 10, near part other end 30B, the 30B of lead 30,30 is hung on breach 22e, the 22e of flange part 22-1,22-2 of second bobbin 20 (2).Then, formation is to the state of lead 30,30 additional tensions, by gear 1011 rotations that make manufacturing installation 1001, make the gear 23D rotation of second bobbin 20 (2), thereby make 20 (2) rotations of second bobbin, with near the part end 30B of lead 30, promptly than the part that hangs over the close other end 30B of part on the breach 22e, embed among the groove 22a of flange part 22-1,22-2, simultaneously with the part of lead 30, promptly, be wrapped in the primary side and the secondary side of volume core 21 respectively than the part that hangs over the close end 30A of part on the breach 22e.Specifically be that contact is twined for 5 times between intermediate flange portion 23 and flange part 22-1,22-2.Then, before will twining end, dismantle parts 1014 by the lead on the pulley 1013,1013 that is located at manufacturing installation 1001, on the periphery of pulley 1013,1013, make lead 30,30 moving axially to pulley 1013,1013, remove from pulley 1013,1013, directly batch lead 30,30, form lead 30,30 is erected at state between first bobbin 20 (1) and second bobbin 20 (2).It more than is the second bobbin winding working procedure.
Then, a pair of core body support component 1012,1012 of manufacturing installation 1001 is separated from core body 10, take off core body 10 from manufacturing installation 1001.Then, insert thin anchor clamps from the triangle breach 22b of flange part 22-1,22-2, as shown in figure 11, draw near the part of an end 30A and near the part of other end 30B of the lead 30 among the groove 22a that embeds flange part 22-1,22-2 respectively, pull out to the below of Figure 11.Then,, peel off insulating coating, near near part part and the other end 30B end 30A of 2 leads 30 of the processing of soldering simultaneously by near near part part and the other end 30B end 30A of 2 leads 30 is immersed in the solder liquid.
Then, as shown in figure 12, near near part part and the other end 30B end 30A of 2 leads 30 of left and right directions bending of figure, insulator foot 40 is fixed on the bobbin 20, near part near part of one end 30A of 2 leads 30 of bending and the other end 30B makes near part of an end 30A and near the part of other end 30B be entrenched in the 40b of through hole portion, the 40b of insulator foot 40.Then, length is cut off near the part of an end 30A and near the part of other end 30B of 2 leads 30 in accordance with regulations, makes common-mode filter 1.
By by making common-mode filter 1 as mentioned above, the part near an end 30A, 30A of lead 30,30 can be wrapped on first bobbin 20 (1), in addition, with the identical direction of direction that will be wrapped near the part of an end 30A, 30A on first bobbin 20 (1), the part of close other end 30B, the 30B of lead 30,30 is wrapped on second bobbin 20 (2), set up lead 30,30 along first bobbin 20 (1) and second bobbin 20 (2), so dispose lead 30,30.
In addition, because first bobbin 20 (1) and second bobbin 20 (2) twine lead 30,30 simultaneously at primary side and secondary side respectively, therefore can shorten the winding time.
Then, the effect of the common-mode filter of present embodiment is tested.In test, adopt the common-mode filter 1 of present embodiment, adopt in the past common-mode filter, the rate of change (%) of the L when having obtained current value and be 0A～8A as sample in the past as sample of the present invention.
Here, so-called common-mode filter in the past, it is the real common-mode filter that constitutes described in the flat 6-23231 communique of opening of JP, be the length that is wrapped in 2 spirals on the bobbin respectively, length 2 leads with the common-mode filter of present embodiment respectively is identical, in addition, the diameter of the volume core of the axial length of bobbin, bobbin in the common-mode filter, and the size of core body also with the diameter of the volume core 21 of the axial length of the bobbin 20 of the common-mode filter 1 of present embodiment, bobbin 20, and core body 10 is measure-alike.Result of the test as shown in figure 13.In Figure 13, solid line is represented sample of the present invention, and dotted line is represented sample in the past.
As shown in figure 13, compare during for 0A with current value, in sample in the past, current value L rate of change when 4A seriously is reduced to roughly-30%, the serious reduction of current value L rate of change when 8A is substantially to-100%.Yet, in sample of the present invention, reduce hardly, to compare during with current value for 0A, current value L rate of change when 8A is roughly-20%.Draw thus, compare with sample in the past in the present invention, the overlapping characteristic of direct current is much better.
Common-mode filter of the present invention is not limited to above-mentioned execution mode, can carry out various deformation or improvement in the described scope of technical scheme part.For example, after the first bobbin winding working procedure, carry out the second bobbin winding working procedure, but also can carry out the first bobbin winding working procedure and the second bobbin winding working procedure simultaneously.Promptly, can carry out flange part 22-1 earlier at first bobbin 20 (1), the last engaging of 22-2 lead 30, an end 30A of 30, the 30A part, flange part 22-1 at second bobbin 20 (2), the last engaging of 22-2 lead 30,30 other end 30B, the conductor wire end part buckle operation of 30B part, then make 20 (1) rotations of first bobbin, with lead 30, a close end 30A of 30, the part of 30A is wrapped on the volume core 21 of first bobbin 20 (1), meanwhile make second bobbin 20 (2) to the direction of rotation rotation identical, with lead 30 with first bobbin 20 (1), 30 close other end 30B, the part of 30B is wrapped in the lead winding working procedure on the volume core 21 of second bobbin 20 (2).So, the winding time can be shortened significantly.
In addition, in the present embodiment, first bobbin 20 (1), second bobbin 20 (2) twine lead 30,30 simultaneously at primary side and secondary side respectively, but also can not twine simultaneously.
In addition, the gear 1011 of manufacturing installation 1001 in the lower side of Fig. 8 and gear 23D engagement, but also can be engaged on gear on the gear 23D being provided with on the manufacturing installation from the upper side of Fig. 8, roughly make it be engaged on gear 23D, make gear 23D rotation from above-below direction.So, can make gear 23D rotation with bigger torque, and, can be with respect to manufacturing installation not fixed spool 20 and core body 10 movably.
In addition, twine lead 30 by making gear 23D rotation, but also can not adopt gear 23D,, lead 30 is wrapped on the volume core 21 with manually making bobbin 20 rotations.
The present invention effectively is used in to have with the core body of roughly " mouth " word shapes of 4 limit portions with by this rotatably mounted being used to of limit portion twines the bobbin of lead, the fixing technical field of the common-mode filter of core body and bobbin on insulator foot.In addition, common-mode filter of the present invention can be used as line filter.
Claims (7)
1. common-mode filter is characterized in that:
Possess,
Core body, it forms roughly square shape shape by 4 limit portions,
First bobbin and second bobbin, its respectively ring-type opposed a pair of described limit portion is installed, have the volume core that twines lead, and an axial almost parallel of described volume core;
Axial roughly centre position at the volume core of described first bobbin, described second bobbin is provided with insulation wall respectively, described insulation wall two is cut apart described first bobbin, described second bobbin respectively vertically, be relevant to described insulation wall, axial side with described first bobbin, described second bobbin is made as primary side respectively, and opposite side is made as secondary side;
At described primary side and described secondary side 1 lead is set respectively, the described lead part near an end separately is wrapped on described first bobbin, the part of the described lead close other end separately is wrapped on described second bobbin to the direction identical with the direction that described part near an end is wrapped in described first bobbin, is erected on described first bobbin and described second bobbin.
2. common-mode filter as claimed in claim 1 is characterized in that:
Described first bobbin and described second bobbin can be respectively is that rotating shaft is bearing in the portion of described limit rotatably with a described opposed opposite side portion;
Be provided with gear on described insulation wall, described gear forms coaxial position relation respectively with the volume core of the volume core of described first bobbin, described second bobbin.
3. common-mode filter as claimed in claim 1 or 2 is characterized in that, is erected at each described conductor part and described insulation wall disposed adjacent on described first bobbin and described second bobbin.
4. the manufacture method of a common-mode filter is characterized in that, has:
Prepare the operation of the lead of specific length;
The first bobbin winding working procedure, it is provided with in that the mode of opposed a pair of described limit portion that forms the core body of square shape shape roughly by 4 limit portions is installed with ring-type respectively, have respectively on the flange part of first bobbin of axial almost parallel of the volume core that twines described lead and described volume core and described first bobbin in second bobbin, one end parts of the described lead of buckle, make described first bobbin rotation with described limit portion as rotating shaft, described lead is wrapped on the volume core of described first bobbin, and, described first bobbin and second bobbin have flange part respectively at described axial two ends, are provided with described volume core two insulation walls that are divided into primary side and secondary side vertically respectively in the axial roughly position intermediate of described volume core;
The second bobbin winding working procedure, the other end part of the described lead of buckle on the flange part of described second bobbin, make described second bobbin to the direction of rotation rotation identical with described limit portion as rotating shaft, described lead is wrapped on the volume core of described second bobbin with described first bobbin.
5, the manufacture method of common-mode filter as claimed in claim 4, it is characterized in that, in described first bobbin winding working procedure or the described second bobbin winding working procedure or in described first bobbin winding working procedure and the described second bobbin winding working procedure, twine described lead simultaneously at described primary side and described secondary side respectively.
6. the manufacture method of a common-mode filter is characterized in that, has:
Prepare the operation of the lead of specific length;
Conductor wire end part buckle operation, it is provided with in that the mode of opposed a pair of described limit portion that forms the core body of square shape shape roughly by 4 limit portions is installed with ring-type respectively, have respectively on the flange part of first bobbin of axial almost parallel of the volume core that twines described lead and described volume core and described first bobbin in second bobbin, one end parts of the described lead of buckle, the other end of described lead partly is buckled on the flange part of described second bobbin, and, described first bobbin and second bobbin have flange part respectively at described axial two ends, are provided with described volume core two insulation walls that are divided into primary side and secondary side vertically respectively in the axial roughly position intermediate of described volume core;
The lead winding working procedure, it makes described first bobbin rotation with described limit portion as rotating shaft, described lead is wrapped on the volume core of described first bobbin, simultaneously make described second bobbin to the direction of rotation rotation identical as rotating shaft, described lead is wrapped on the volume core of described second bobbin with described first bobbin with described limit portion.
7. the manufacture method of common-mode filter as claimed in claim 6 is characterized in that, twines described lead simultaneously at described primary side and described secondary side respectively in described lead winding working procedure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007283874A JP4595990B2 (en) | 2007-10-31 | 2007-10-31 | Manufacturing method of common mode filter |
| JP2007283874 | 2007-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101499363A true CN101499363A (en) | 2009-08-05 |
Family
ID=40779418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101667905A Pending CN101499363A (en) | 2007-10-31 | 2008-10-27 | Common mode filter, and manufacturing method of common mode filter |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4595990B2 (en) |
| KR (1) | KR20090045071A (en) |
| CN (1) | CN101499363A (en) |
| TW (1) | TW200921725A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590719A (en) * | 2014-10-24 | 2016-05-18 | 千如电机工业股份有限公司 | Common-mode filter and iron core thereof |
| CN105895325A (en) * | 2015-02-18 | 2016-08-24 | 东京零件工业股份有限公司 | Line filter |
| GB2586505A (en) * | 2019-08-23 | 2021-02-24 | Siemens Healthcare Ltd | A method for assembly of a monolithically impregnated cylindrical coil assembly |
| CN113284720A (en) * | 2021-04-28 | 2021-08-20 | 安登利电子(深圳)有限公司 | Common mode transformer and mounting method thereof |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5930528B2 (en) * | 2012-03-23 | 2016-06-08 | 日特エンジニアリング株式会社 | Coil manufacturing apparatus and method |
| JP6454064B2 (en) * | 2013-06-18 | 2019-01-16 | 株式会社トーキン | choke coil |
| US20220130588A1 (en) * | 2019-03-29 | 2022-04-28 | Panasonic Intellectual Property Management Co., Ltd. | Reactor and electric power conversion device |
| CN112117105B (en) * | 2019-06-19 | 2024-06-11 | 德阳帛汉电子有限公司 | Filtering transformer |
| CN113394007A (en) * | 2021-07-02 | 2021-09-14 | 莱芜成威电子材料有限公司 | Soft magnetic core and soft magnetic core winding method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0648662B2 (en) * | 1989-02-15 | 1994-06-22 | 株式会社トーキン | Common mode choke coil and method of manufacturing the same |
| JPH02229407A (en) * | 1989-03-02 | 1990-09-12 | Nippon Telegr & Teleph Corp <Ntt> | Choke coil |
| JPH0537782Y2 (en) * | 1989-07-07 | 1993-09-24 | ||
| JPH0717130Y2 (en) * | 1990-10-31 | 1995-04-19 | 株式会社トーキン | Coil with gear bobbin |
| JPH0499516U (en) * | 1991-01-25 | 1992-08-27 | ||
| JPH04127615U (en) * | 1991-05-10 | 1992-11-20 | 株式会社トーキン | common mode chiyoke coil |
| JP3577602B2 (en) * | 1993-11-02 | 2004-10-13 | Ｎｅｃトーキン株式会社 | Automatic winding machine |
| JPH0878254A (en) * | 1994-09-05 | 1996-03-22 | Tokin Corp | Common mode choke coil |
| JP3844170B2 (en) * | 1998-05-08 | 2006-11-08 | Ｔｄｋ株式会社 | Box noise filter |
-
2007
- 2007-10-31 JP JP2007283874A patent/JP4595990B2/en active Active
-
2008
- 2008-09-30 TW TW097137620A patent/TW200921725A/en unknown
- 2008-10-27 CN CNA2008101667905A patent/CN101499363A/en active Pending
- 2008-10-30 KR KR1020080106982A patent/KR20090045071A/en not_active Application Discontinuation
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590719A (en) * | 2014-10-24 | 2016-05-18 | 千如电机工业股份有限公司 | Common-mode filter and iron core thereof |
| CN105895325A (en) * | 2015-02-18 | 2016-08-24 | 东京零件工业股份有限公司 | Line filter |
| CN105895325B (en) * | 2015-02-18 | 2019-03-01 | 东京零件工业股份有限公司 | Line filter |
| GB2586505A (en) * | 2019-08-23 | 2021-02-24 | Siemens Healthcare Ltd | A method for assembly of a monolithically impregnated cylindrical coil assembly |
| GB2586505B (en) * | 2019-08-23 | 2021-10-20 | Siemens Healthcare Ltd | A method for assembly of a monolithically impregnated cylindrical coil assembly |
| CN113284720A (en) * | 2021-04-28 | 2021-08-20 | 安登利电子(深圳)有限公司 | Common mode transformer and mounting method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20090045071A (en) | 2009-05-07 |
| JP4595990B2 (en) | 2010-12-08 |
| TW200921725A (en) | 2009-05-16 |
| JP2009111264A (en) | 2009-05-21 |
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