CN1815640B - Coil assembly including common-mode choke coil - Google Patents
Coil assembly including common-mode choke coil Download PDFInfo
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- CN1815640B CN1815640B CN 200610005823 CN200610005823A CN1815640B CN 1815640 B CN1815640 B CN 1815640B CN 200610005823 CN200610005823 CN 200610005823 CN 200610005823 A CN200610005823 A CN 200610005823A CN 1815640 B CN1815640 B CN 1815640B
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Abstract
A coil assembly for reducing variations in characteristic impedance includes a winding section having a first surface and a second surface on the opposite side of the winding section from the first surface, a plurality of first protrusions provided on the first surface, and a plurality of second protrusions provided on the second surface. These protrusions are identical in shape to each other and are arrayed linearly on their respective surfaces so that the first protrusions are offset from the second protrusions. Two conducting wires are wound between neighboring protrusions such that one wire contacts one of the neighboring protrusions, while the other wire contacts the other neighboring protrusion.
Description
Technical field
The present invention relates to coil block such as common mode choke coil.
Background technology
Recently, the high-frequency transmission signal such as the interface standard of USB 2.0 standards, the high-speed interface etc. that is used for personal computer and HTMI standard, be used for digital video etc. digital video and audio frequency input/output interface very common.According to using the high-frequency transmission signal, these standards are utilized different transmission methods, and described transmission method is by reducing noise interference effect and signal error along two leads with anti-phase transmission signals.
But in fact, the common mode noise electric current is usually owing to the difference such as the communication attributes of two leads produces.Under these circumstances, lead may and be launched noise as antenna.Japanese patent application publication No.2003-133148 has proposed a kind of common mode choke coil that is used to reduce this noise.
In addition, except inductance, in the interface that utilizes the high-frequency transmission signal, the line of common mode choke coil has influenced the characteristic impedance of coil significantly to the electric capacity of line.
Summary of the invention
But the present invention recognizes that in Japanese Patent Application Publication publication No.2003-133148 disclosed common mode choke coil is not used in the part of positioning lead around winding part wrap wire the time.Therefore, winding is uneven, changes to line capacitance at the line that the characteristic impedance that causes common mode choke coil changes.
Change in order to reduce these, the inventor finds that line to line capacitance changes based on the distance between two leads.Therefore, the purpose of this invention is to provide a kind of coil block that can reduce the variation of characteristic impedance by between lead, keeping proportional spacing.
This and other purpose of the present invention will obtain by the coil block that a kind of core that comprises improvement, two leads and electrode are provided.Core comprises column winding part, and described winding partly has twisting surface, and is arranged on the flange on the two ends of twining part.Described two leads twine around the twisting surface of core.Electrode is set at and will be connected on the flange of core of two leads.Twining part has from the outstanding a plurality of projectioies of twisting surface.Two leads twine around twisting surface, with when maintenance is separated from one another by adjacent projection between.One of one of lead contact adjacent protrusion, the another one of the adjacent protrusion of another one lead contact simultaneously.
Description of drawings
In the accompanying drawings:
Fig. 1 is the perspective view of common mode choke coil according to a preferred embodiment of the invention;
Fig. 2 is the plane graph according to the common mode choke coil of preferred embodiment;
Fig. 3 is the end view of common mode choke coil according to a preferred embodiment of the invention; And
Fig. 4 is the upward view of common mode choke coil according to a preferred embodiment of the invention.
Embodiment
Common mode choke coil 1 as one of example of coil block according to a preferred embodiment of the invention describes with reference to Fig. 1-4.As shown in Figure 1, common mode choke coil 1 comprises core 2, first lead 6, second lead 7 and the first electrode part 8 and the second electrode part 9.
Core 2 comprises winding part 3, first flange 4 and second flange 5.Twine part 3 formed by magnetic and have with the longitudinal direction that twines part 3 on rectangular cross section substantially in the plane orthogonal.First flange 4 and second flange 5 are set on the arbitrary vertical end that twines part 3 and have each other much at one shape.As shown in Figure 2, be that the longitudinal direction of winding part 3 of the winding direction of lead 6,7 is restricted to the x direction, and the latitude direction of the winding part 3 that is equal to mutually with the direction that the first electrode 8A is connected to the second electrode 8B (back explanation) is restricted to the y direction.As shown in Figure 3, with x axle and y axle mutually the thickness direction of the winding part 3 of quadrature be restricted to the z direction.
Shown in Fig. 2,3, twine part 3 by the first surface 31 that extends in (x-y direction) on the Width, second surface 32 on the side of the winding part 3 relative, and the thickness direction between first surface 31 and second surface 32 (x-z direction) is gone up first side surface 33 and second side surface 34 that extends with first surface 31.First surface 31 and second surface 32 are parallel to each other substantially, and first side surface 33 and second side surface 34 are parallel to each other substantially.Therefore, the cross section ` shape along first side surface on y-z plane is rectangle substantially.
As shown in Fig. 1,2 and 4, the first recess 33a forms in first side surface 33 in the zone of the rear surface 42 of explanation being intersected near first side surface 33 and back.The first recess 33a is the depression a little in first side surface 33 and almost crosses whole z direction and form.The first turning 33b is provided with on the junction point between the first recess 33a and the rear surface 42.The second turning 33c is formed on first side surface 33 and as on the junction point between the first recess 33a of step part.Similarly, as shown in Fig. 1,2 and 4, the second recess 34a identical with the first recess 33a is formed in second side surface 34, and second side surface 34 intersects with rear surface 52, as described later.The 3rd turning 34b is set on the junction point between the second recess 34a and the rear surface 52.The 4th turning 34c is formed on the junction point between second side surface 34 and the second recess 34a as step part.
Shown in Fig. 2,3, the first protruding 31A-31D is crossing on the x direction in the approximate center zone of first surface 31 at relative y axle and is settling so that the spacing of rule is linear.Shown in Fig. 3,4, the relative y direction of the second protruding 32A-32C is placed in the center of second surface 32 substantially and settles so that the spacing of rule is linear on the x direction.The all first protruding 31A-31D and the second protruding 32A-32C have essentially identical shape, are tapered towards the top from base end, and the transverse cross-sectional area of cardinal extremity is bigger than the zone of top (referring to Fig. 3) like this.In addition, these projectioies are formed chevron a little, avoid from the mounting structure shown in the Z direction.The surface that raised surface is twined part 3 relatively has the gradient.
As shown in Figure 3, the second protruding 32A is being placed between the first protruding 31A and the 31B on the x direction of principal axis substantially.Shown in Fig. 2,4, first area 3A is limited between the first protruding 31A, the 31B, second area 3B is limited between the second protruding 32A, the 32B, the 3rd regional 3C is limited between the first protruding 31B, the 31C, the 4th regional 3D is limited between the second protruding 32B and the 32C, and the 5th regional 3E is limited between the first protruding 31C, the 31D.
Shown in Fig. 2,3, first flange 4 is basically formed is cuboid, its by with the front surface 41 of x direction of principal axis quadrature, rear surface 42, with y direction first side surface 43 and second side surface 44 of quadrature mutually, and form with the top surface 45 and the lower surface 46 of z direction quadrature.Similarly, second flange 5 is basically formed is cuboid, its by with the front surface 51 of x direction quadrature and rear surface 52, with first side surface 53 and second side surface 54 of y direction quadrature, and form with the top surface 55 and the lower surface 56 of z direction quadrature.
As shown in Figure 2, a pair of first and second groove 45a, 45b are formed on the x direction towards twining in the top surface 45 that the basic center of part 3 on top surface 45 tilt.The first and second groove 45a, 45b are centered around relative y direction in the line symmetry by the central point in the top surface 45.The first retaining part 45A is defined as the formed step of the first groove 45a that passes through on the side of the first groove 45a of close first side surface 33 on the y direction.The second retaining part 45B is restricted to the step that forms between the second groove 45b and the first groove 45a.
Similarly, a pair of third and fourth groove 55a, 55b are formed on the top surface 55 of second flange 5 that the basic center on the top surface 55 that twines part 3 tilts on the x direction.The third and fourth groove 55a, 55b are centered around on the x direction relatively the y direction by the line symmetry of the central point in the top surface 55.The 3rd retaining part 55A is defined as the formed step of three-flute 55a that passes through on the side of the three-flute 55a of close second side surface 34 on the y direction.The 4th retaining part 55B is defined as the step that is formed between the 4th groove 55b and the three-flute 55a.
The first electrode part 8 comprises the first electrode 8A and the second electrode 8B that is positioned on the y direction.The first electrode 8A is positioned on first side surface, 43 sides, and the second electrode 8B is positioned on second side surface, 44 sides.As shown in fig. 1, the first and second electrode 8A, 98B form by the either side of electroplating top surface 45 and front surface 41.The part of the first electrode 8A is formed in top surface 45 among the first groove 45a.Similarly, a part of second electrode 8B is formed among the second groove 45b.Top surface 45 parts of the first electrode part 8 are the parts that are connected with lead 6,7.
As shown in Figure 2, similar to the first electrode part 8, the second electrode part 9 comprises third electrode 9A and the 4th electrode 9B on second side surface, 54 sides on first side surface, 53 sides and aligns on the y direction.The third and fourth electrode 9A, 9B form by electroplating top surface 55 and front surface 51 either sides.Form among the three-flute 55a of the part of third electrode 9A in top surface 55.Similarly, a part the 4th electrode 9B is formed among the 4th groove 55b.Top surface 55 parts of the second electrode part 9 are connected with lead 6,7.Second flange 5 is formed approximate and first flange 4 is equal to, and crosses winding part 3 and first flange, 4 symmetries.Therefore, it is basic identical with the direction that third electrode 9A is connected to the 4th electrode 9B the first electrode 8A to be connected to the direction of the second electrode 8B.
As shown in Figure 2, first lead 6 has end 6A, 6B.With the end 6A that is connected to the first electrode 8A, first lead 6 is provided with in the first groove 45a and cooperates with the first retaining part 45A.First lead 6 is side directed towards the first recess 33a on rear surface 42 then, and passes through the first recess 33a along the first turning 33b.From then on point, 6 beginnings of first lead its around the winding of twining part 3.
Second lead 7 comprises end 7A, 7B.With the end 7A that is connected to the second electrode 8B, second lead 7 is set among the second groove 45b and with the second retaining part 45B and cooperates.Second lead 7 extends towards the first recess 33a then, by near the first protruding 31A on the first surface 31, and along second turning 33c guiding by the first recess 33a.From then on point, 7 beginnings of second lead its around the winding of twining part 3.By twining first lead 6 along the first turning 33b and twining second lead 7 along the second turning 33c, the starting position that is used to twine lead 6,7 can accurately be regulated, and winding unlikely moves to become chaotic like this.In addition, lead 6,7 can be accurately be connected to the first recess 33a respectively these leads are connected to the first recess 33a from their tie point by lead 6,7 is cooperated with the first retaining part 45A and the second retaining part 45B.
As shown in Figure 4, on the surface of the second surface 32 on first flange, 4 sides of the second protruding 32A, twine and on second side surface 34, be wound into first surface 31 sides along the second set lead 7 of the second turning 33c.Then, as shown in Figure 2, the first area 3A of second lead 7 that twines from second side surface 34 by first surface 31 is to contact with the first protruding 31B and then be wound into second surface 32 sides on first side surface 33.
In addition, as shown in Figure 4, first lead 6 that is provided with along the first turning 33b then moves on second surface 32, and is wound into first surface 31 sides on second side surface 34.Then, as shown in Figure 2, the first area 3A of first lead 6 that winds up from second side surface 34 by first surface 31 is to contact and then to be wound into second surface 32 sides with the first protruding 31A.
The spacing of intermediate point on the x direction of the first protruding 31A and the first protruding 31B is fixed range T.Because the first protruding 31A, 31B be of similar shape, lead 6,7 is maintained on the uniform distance t1 in the distance within the 3A of first area.
As shown in Figure 4, around passing second area 3B on the second surface 32 then contacting to second lead 7 of second surface 32, and then be wrapped on second side surface 34 to first surface 31 with the second protruding 32B by first area 3A and on first side surface 33.Also twine by passing second area 3B on the second surface 32 to first lead 6 of second surface 32 sides on the first area 3A and first side surface 33, and then be wrapped on second side surface 34 to first surface 31 sides.
Second area 3B is formed basic identical with first area 3A, and the distance between the intermediate point of the such second protruding 32A, 32B equals the distance between the intermediate point of the first protruding 31A, 31B, that is, and and apart from T.Because the second protruding 32A, 32B shape and the first protruding 31A are equal to, second area 3B shape substantially and first area 3A be equal to.Correspondingly, the distance between the lead 6,7 among the second area 3B equals the distance between the lead 6,7, i.e. t1 in the 3A of first area.
Similarly, be equal to first area 3A because the 3rd regional 3c, the 4th regional 3D and the 5th regional 3E also basically form, the distance between the lead 6,7 in regional 3C, 3D, 3E is kept identical value t1.Therefore, when twining leads 6,7 by these zones around winding part 3, the distance on the x direction is maintained on the even value t1, and identical like this space is maintained between the lead.
As shown in Figure 2, the 5th regional 3E on first area 3A, the 3rd regional 3C and the first surface 31 separates by having the identical shaped first protruding 31B, 31C.As shown in Figure 4, second area 3B on the second surface 32 and the 4th regional 3D separate by the second protruding 32B.Because all first protruding 31A-31D and second protruding 32A-32C have essentially identical shape, the distance between the adjacent area is equal to substantially.
In addition, lead 6,7 is positioned in these zones, separates the projection in described zone with contact.Therefore, the distance that is placed in 6,7 groups in lead among the 3A of first area and is placed between 6,7 groups in the lead among the 3rd regional 3C is t2, and the distance between 6,7 groups in 6,7 groups in lead in the 3rd regional 3C and the lead in the 5th regional 3E equals t2 substantially simultaneously.In addition, described one group of lead 6,7 in the 3A of first area and the distance between one group of lead in the described the 3rd regional 3C described one group of lead 6,7 basic and in second area 3B is identical with the distance between the one group of lead 6,7 in the described the 4th regional 3D.
Therefore, when with lead 6,7 around twining part 3 when twining, be fixed value from lead 6,7 at least as the distance between one group of each circle of measuring from first area 3A to the five regional 3E, that is, t2.
As shown in Figure 4, second lead 7 that extends on first side surface 33 from the 5th regional 3E is wound onto second surface 32 sides.Second lead 7 extends and runs to the position of the 3rd turning 34b towards the second recess 34a on second surface 32.As a result, second lead 7 is conducted through the second recess 34a along the 3rd turning 34b.As shown in Figure 2, second lead 7 is arranged on then on the rear surface 52 and with the 3rd retaining part 55A and cooperates.Second lead 7 passes three-flute 55a and extends to third electrode 9A side, and end 7B is connected to third electrode 9A.
As shown in Figure 4, first lead 6 that extends on first side surface 33 from the 5th regional 3E is wound onto second surface 32 sides.First lead 6 is extending and is being positioned on the 4th turning 34c towards the second recess 34a on the second surface 32 along second flange, 5 sides of the second protruding 32C on the second surface 32.As a result, first lead 6 is conducted through the second recess 34a along the 4th turning 34c.As shown in Figure 2, first lead 6 is cooperating near operation on the first surface 31 of the first protruding 31D and with the 4th retaining part 55B.First lead 6 is conducted through the 4th groove 55b and extends to the 4th electrode 9B side, and end 6B is connected to the 4th electrode 9B like this.
By twining first lead 6 and twine second lead 7 along the 3rd turning 34b towards its tie point towards tie point along the 4th turning 34c, the end position of lead 6,7 is accurately limited.In addition, by cooperating lead 6,7, described lead 6,7 extends from the second recess 34a, the described second recess 34a has the 4th retaining part 55B and the 3rd retaining part 55A respectively, be used for the end of lead 6,7 is connected to tie point, can be implemented in the accurate location of the end sections of the lead 6,7 between the second recess 34a and the tie point.
In addition, when twining leads 6,7, have wherein and to be wrapped on the top surface of the first protruding 31A or the situation on the skewed surface such as first lead 6 around twining part 3.But, because the surface of the first protruding 31A tilts, first lead 6 slide the surface of the first protruding 31A and drop on the first protruding 31A and the foot or base portion of the first protruding 31A that first surface 31 is crossing on.Therefore, by around twine part 3 twine leads 6,7 be captured in the first protruding 31A-31D a little and go up and the second protruding 32A-32C on, lead 6,7 can be wound with these protruding foots of suitable contact.
In the common mode choke coil 1 with aforesaid structure, the distance between the lead 6,7 is maintained on the basic evenly value t1, and the distance that is used for a circle of one group of lead 6,7 simultaneously is maintained at basic value t2 uniformly.Therefore, the variation of the attribute of the common mode choke coil that is produced reduces.
Because aforesaid common mode choke coil 1 can accurately be regulated around the starting position and the end position of the lead 6,7 that twines part 3 windings, the structure of common mode choke coil 1 can reduce the variation of the attribute among the different products.In addition, in aforesaid common mode choke coil 1, first and second flanges, 4,5 shapes are equal to each other, and center on the center symmetry of twining part 3 in the x-y plane.Correspondingly, when making common mode choke coil 1, the pair of flanges that is arranged on the two ends of twining part 3 can be first flange 4.Therefore, when making common mode choke coil 1, just there is no need alignment core 2 on the x direction, this has eliminated unnecessary step and has improved productivity ratio.
Because when the tie point (juncture) of the first recess 33a between the winding part 3 and first flange 4 formed, lead 6,7 can twine from the end of the winding part 3 on first flange, 4 sides, effectively utilize and twine part 3.In addition, by form the part of tie point as the first recess 33a between first flange 4 and winding part 3, the shape of core 2 is simplified, and has made things convenient for the molded of core 2.
In addition, because the second recess 34a forms along the tie point that twines between the part 3 and second flange 5, lead 6,7 can be wound into the end of the winding part 3 on second flange, 5 sides always, more effectively utilizes thus and twines part 3.
The line of common mode choke coil 1 to line capacitance according to the variable in distance between each circle of the distance between the lead 6,7 and described one group of lead 6,7.From this point, to each product, the common mode choke coil 1 of preferred embodiment remains on these distances on the uniform value.Like this, having basic line uniformly to the common mode choke coil of line capacitance can be provided.In addition, the characteristic impedance of common mode choke coil changes according to line to line capacitance.Point at this point, the line among the product to the variation of line capacitance by evenly keeping distance and the distance between each circle of 6,7 groups of even value t2 upper conductors between the lead 6,7 to reduce on the value t1.Like this, the common mode choke coil with the uniform properties impedance that is used for each product can be provided.Correspondingly, the common mode choke coil of gained provides that characteristic impedance seldom changes among product, and can remove specific frequency reliably.
Then, will several modifications of preferred embodiment be described.Projection can only be formed on the first surface 31 or only be formed on first side surface 43.Alternatively, projection can be arranged on each first surface 31, second surface 32 and first side surface 43.By on four surfaces projection being provided at least one surface and on these protruding foots, twining lead 6,7, just can keep uniform distance between the lead 6,7 and between each circle of described one group of lead 6,7.
When on the first surface 31 and first side surface 33, providing first and second projectioies respectively, just can keep uniform distance by on the x direction, moving about 1/4 pitch of first and second projectioies between the lead 6,7 and between each circle of described one group of lead 6,7.Similarly, first and second projectioies can be separately positioned on the second surface 32 and second side surface 34.
In addition, in aforesaid preferred embodiment, first and second projectioies are provided with on the spacing that is equating on the direction that is parallel to the x direction.But, for example, also can on first surface 31, be offset first projection on the y direction.In the latter case, the position of first projection must be calculated in advance to keep uniform distance between the lead 6,7 and between described one group of lead 6,7.
In addition, twining part 3 can have the polygon cross section and comprise first surface 31.A plurality of first identical shaped projectioies can be arranged on the first surface 31 and be placed in linearly from one of flange on the constant spacing on the direction of other flange.
Use this structure,, just can and between described one group of lead 6,7, keep uniform distance in maintenance uniform distance between each circle of lead 6,7 when around twining part 3 when twining lead 6,7.Since line to line capacitance according to the variable in distance between each circle of the distance between the lead 6,7 and described one group of lead 6,7, this structure can twine keep lead on the part 3 uniform line to line capacitance.
In addition, the winding part 3 with polygon cross section has second surface, and the projection comprise a plurality of second projectioies that are arranged on the second surface, except first projection that is provided with on the first surface.Second convex shape is mutually the same and mutually the same with first projection, is being placed on the second surface linearly with fixing spacing on the direction of another one flange from a flange.First projection and second projection can be placed in from a flange on the position that is offset each other on the direction of another one flange.
Use this structure, just can improve the uniformity between each circle of distance between the lead 6,7 and described one group of lead 6,7, thus the uniformity of the improvement line that twines the lead on the part to the line capacitance.
Simultaneously, common mode choke coil has been described in detail with reference to certain embodiments, those of ordinary skill is appreciated that under the situation that does not deviate from spirit of the present invention and essence and can makes amendment to the present invention that its scope falls within the scope of appended claims.
Claims (15)
1. coil block comprises:
Core comprises that column twines part, and described winding partly has twisting surface and two ends and is arranged on flange on the two ends;
Two leads, described two leads twine around the twisting surface of core; And
Electrode, described electrode are set at and will be connected on the flange of core of two leads;
Wherein twine part and have from the outstanding a plurality of projectioies of twisting surface, two leads twine around twisting surface, with when maintenance is separated from one another by adjacent projection between, and
One of one of lead contact adjacent protrusion, the another one of the adjacent protrusion of another one lead contact simultaneously.
2. coil block according to claim 1, wherein, a plurality of convex shape are identical.
3. coil block according to claim 1, wherein, a plurality of projectioies are being settled from one of flange linearity on the spacing of fixing on the direction of the another one of flange.
4. coil block according to claim 1 wherein, twines part and has the polygon cross section and have first surface; And
Wherein a plurality of projectioies comprise a plurality of a plurality of first projectioies that are arranged on the first surface that twines part, and each first convex shape is identical and settling linearly with fixing spacing on the direction of the another one of flange from one of flange.
5. coil block according to claim 4 wherein, twines part and has second surface;
And wherein a plurality of projectioies also comprise a plurality of a plurality of second projectioies that are arranged on the second surface that twines part, each second convex shape is mutually the same and identical with the shape of first projection, and settling linearly on the spacing of fixing on the direction of the another one of flange from one of flange, first projection and second projection are being offset on the direction of the another one of flange each other from one of flange each other.
6. coil block according to claim 1, wherein, each has cardinal extremity and top a plurality of projectioies, and is tapered, and the cross-sectional area of cardinal extremity is bigger than the cross-sectional area on top like this, has eliminated the structure that suspends.
7. coil block according to claim 1, wherein, two leads are twining around twining part on the spacing on the winding direction betwixt uniformly, and one group of two lead is twining around twining part on the spacing between each circle uniformly.
8. coil block according to claim 1, wherein, flange comprises first flange and second flange;
Wherein two leads comprise first lead and second lead;
Wherein electrode comprises an end that is arranged on first electrode in first flange and is connected to first lead, be arranged on second electrode in first flange, and be connected to an end of second lead, be arranged on the third electrode in second flange and be connected to the other end of second lead, and be arranged on the 4th electrode in second flange and be connected to the other end of first lead;
Suppose that wherein the direction that first and second leads are wound is restricted to longitudinal direction, the direction that connects first and second electrodes is restricted to first Width, and limit as first thickness direction with the direction of the longitudinal direction and the first Width quadrature, twine part and have the side surface that on first thickness direction and longitudinal direction, extends, and
Wherein side surface is being formed with first recess near first flange with near on the position of first electrode, first recess is extending on whole side surface on the thickness direction fully, first lead and second lead extend from first electrode and second electrode, and described first electrode and the second electrode side are arranged in first recess to twine first and second leads since first recess with leaning on side.
9. coil block according to claim 8, wherein, first recess forms along the tie point that twines between the part and first flange.
10. coil block according to claim 8, wherein, first recess has first turning and extends on first thickness direction on the first flange side, and has second turning and extend on first thickness direction on the side relative with the first flange side;
Wherein first lead that extends from first electrode extends along first turning; And
Wherein second lead that extends from second electrode extends along second turning.
11. coil block according to claim 8, wherein, the direction of supposing wherein to connect the direction of third electrode and the 4th electrode is restricted to second Width, be restricted to second thickness direction with the direction of the longitudinal direction and the second Width quadrature, twine the other side surface that partly has in second thickness direction and longitudinal direction extension; And
Wherein other side surface is being formed with second recess near second flange with near on the position of third electrode, second recess is extending on other side surface on second thickness direction fully, those be wrapped in wound portion on dividing first lead and second lead by side by side be arranged in second recess and be connected respectively to the 4th electrode and third electrode.
12. coil block according to claim 11, wherein, second recess forms along the tie point that twines between the part and second flange.
13. coil block according to claim 11, wherein, second recess has the 3rd turning and extends on second thickness direction on the second flange side, and has the 4th turning and extend on second thickness direction on the side relative with second flange; And
Wherein the conductor part of an other end of close second lead is extended along the 3rd turning, and the conductor part of an other end of close first lead is extended along the 4th turning.
14. coil block according to claim 10, wherein, first flange comprises first retaining part in the downstream that directly is placed in first electrode on the winding direction and second retaining part directly settled and separating from first retaining part on first Width on the downstream of second electrode on the winding direction, first lead extends from first electrode, described first electrode cooperates with first retaining part, and be provided with along first turning, and second lead is provided with from second electrode extension that cooperates with second retaining part and along second turning.
15. coil block according to claim 13, wherein, second flange is included in the 3rd retaining part of the upstream that directly is placed in third electrode on the winding direction and separates from the 3rd holding member at the 4th retaining part of the upstream that directly is placed in the 4th electrode on the winding direction and on second width, second lead extends from the 3rd turning that cooperates the 3rd retaining part and is connected to third electrode, and first lead extends from the 4th turning that cooperates the 4th retaining part and is connected to the 4th electrode.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005-022635 | 2005-01-31 | ||
| JP2005022635A JP4176083B2 (en) | 2005-01-31 | 2005-01-31 | Coil parts |
| JP2005022635 | 2005-01-31 | ||
| JP2005079872 | 2005-03-18 | ||
| JP2005-079872 | 2005-03-18 | ||
| JP2005079872A JP4176726B2 (en) | 2005-03-18 | 2005-03-18 | Common mode choke coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1815640A CN1815640A (en) | 2006-08-09 |
| CN1815640B true CN1815640B (en) | 2010-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610005823 Active CN1815640B (en) | 2005-01-31 | 2006-01-10 | Coil assembly including common-mode choke coil |
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| Country | Link |
|---|---|
| JP (1) | JP4176083B2 (en) |
| CN (1) | CN1815640B (en) |
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| JP2008091359A (en) * | 2006-09-29 | 2008-04-17 | Toko Inc | Winding type common mode choke coil |
| JP5168742B2 (en) * | 2009-09-29 | 2013-03-27 | Ｔｄｋ株式会社 | Coil parts |
| KR101585261B1 (en) | 2009-11-06 | 2016-01-13 | 엘지이노텍 주식회사 | coil |
| JP6589588B2 (en) * | 2014-12-02 | 2019-10-16 | Tdk株式会社 | Pulse transformer |
| WO2016141385A1 (en) * | 2015-03-05 | 2016-09-09 | Enhanced Life Water Solutions, Inc. | Systems and methods for controlling electric fields in a fluid, gases and bacteria |
| JP7135398B2 (en) * | 2018-04-12 | 2022-09-13 | Tdk株式会社 | coil parts |
| US12009130B2 (en) * | 2018-11-29 | 2024-06-11 | Autonetworks Technologies, Ltd. | Reactor |
| JP6943235B2 (en) * | 2018-12-24 | 2021-09-29 | 株式会社村田製作所 | Coil parts |
| CN111724969A (en) * | 2020-06-29 | 2020-09-29 | 安徽博微新磁科技有限公司 | Inductor |
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| JPS56110607U (en) * | 1980-01-29 | 1981-08-27 | ||
| JP4203949B2 (en) * | 2003-04-03 | 2009-01-07 | Ｔｄｋ株式会社 | Common mode filter |
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| Title |
|---|
| JP2004－311560A 2004.11.04 |
| JP平3-49210A 1991.03.04 |
| JP昭56－110607U 1981.08.27 |
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| Publication number | Publication date |
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| JP4176083B2 (en) | 2008-11-05 |
| CN1815640A (en) | 2006-08-09 |
| JP2006210755A (en) | 2006-08-10 |
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