CN101477872B - Winding wire type coil component - Google Patents
Winding wire type coil component Download PDFInfo
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- CN101477872B CN101477872B CN2008101696147A CN200810169614A CN101477872B CN 101477872 B CN101477872 B CN 101477872B CN 2008101696147 A CN2008101696147 A CN 2008101696147A CN 200810169614 A CN200810169614 A CN 200810169614A CN 101477872 B CN101477872 B CN 101477872B
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Abstract
The invention provides a coil type winding component which can prevent short circuit of coils near to a joint part without complicating structure and reducing winding density of coils. The coil type winding component (10) is composed of the following components: a core (12) having a first flange part (16) and a second flange part (18) at two ends of a core winding part (14); a first coil (28) and a second coil (30); and terminal electrodes (24A, 26A, 24B, 26B). Convex steps (20, 22) are formed at the inner surface (17) of the first flange part (16) near to a first side face of the core winding part (14) and at the inner surface (19) of the second flange part (18) near to a second side face of the core winding part (14). One end (28A) at one side of the first coil (28) is fixed on the terminal electrode (24A) through the top of the step (20), the end (30A) at the other side is connected on the terminal electrode (26B). Therefore, near to the joint part, a certain distance capable of insulating electricity is arranged between coils (28, 30) so as to prevent short circuit.
Description
Technical field
The present invention relates on two ends have the volume core of flange part, be wound with the winding wire type coil component of the 1st and the 2nd spiral, further relate to the improvement of insulating properties between spiral particularly.
Background technology
The common mode choke that on the volume core of drum type core, is wound with two spirals is used to its anti-noise parts as various electronic instruments.The structure of winding wire type coil component in the past is: have core components; This core components comprises volume core that is wound with spiral and the flange part that is configured in its two ends; The end that is wound on the spiral on the above-mentioned volume core is connected (for example, following patent documentation 1) on the terminal electrode that is formed on the above-mentioned flange part.
[patent documentation 1] TOHKEMY 2004-63697 communique
Usually; Above-mentioned spiral coats processing to wire rods such as copper cash through insulating and constitutes, and its end is bonded on the terminal electrode through methods such as thermo-compressed, near this junction surface; Peel off because above-mentioned insulating coating material melts, thus the position of two spirals near the time possibly be short-circuited., in order to prevent near the wire rod short circuit junction surface, and spiral was retracted to reduce the rolling density of two spirals in the past, complicated but structure becomes, can not obtain high characteristic.
Summary of the invention
The present invention is conceived to the problems referred to above, and purpose is to provide a kind of winding wire type coil component, and it can not make structure become complicated or not make under the situation that the rolling density of spiral reduces, and prevents near the spiral short circuit the junction surface.
To achieve these goals, winding wire type coil component of the present invention has: the core that is provided with the 1st and the 2nd flange part at the two ends of volume core; The the 1st and the 2nd spiral of on above-mentioned volume core, reeling; Be formed on above-mentioned each flange part and be connected with the terminal electrode of the end of above-mentioned each spiral respectively; It is characterized in that: near near the step that is respectively equipped with convex the 1st flange part of the 1st side of above-mentioned volume core and the 2nd flange part of the 2nd side of above-mentioned volume core; And; The end of one side of a spiral in the above-mentioned the 1st or the 2nd spiral is connected on the above-mentioned terminal electrode through the top near the step of the convex of the 1st flange part of the 1st side of above-mentioned volume core; The end of one side of another spiral is not connected on the above-mentioned terminal electrode through above-mentioned step; The end of the opposite side of above-mentioned another spiral is connected on the above-mentioned terminal electrode through the top near the step of the convex of the 2nd flange part of the 2nd side of above-mentioned volume core, and the end of the opposite side of a said spiral is not connected on the above-mentioned terminal electrode through above-mentioned step.Thus, realize above-mentioned purpose.
Winding wire type coil component of the present invention; Be provided with the 1st and the 2nd spiral of reeling on the volume core of core of the 1st and the 2nd flange part at two ends; The end of this spiral is connected with terminal electrode on being formed on above-mentioned flange part; Wherein, near near the step that is respectively equipped with convex the 1st flange part of the 1st side of above-mentioned volume core and the 2nd flange part of the 2nd side of above-mentioned volume core, the step of this convex is used to form the distance that can make electric insulation between the above-mentioned the 1st and the 2nd spiral.And; The end of one side of a spiral in the above-mentioned the 1st or the 2nd spiral is connected on the above-mentioned terminal electrode through the top near the step of the convex of the 1st flange part of the 1st side of above-mentioned volume core, and the end of a side of another spiral is not connected on the above-mentioned terminal electrode through above-mentioned step.Equally; The end of the opposite side of above-mentioned another spiral is connected on the above-mentioned terminal electrode through the top near the step of the convex of the 2nd flange part of the 2nd side of above-mentioned volume core, and the end of the opposite side of a said spiral is not connected on the above-mentioned terminal electrode through above-mentioned step.Therefore, become complicated or do not make under the situation that the rolling density of spiral reduces, just can increase and the distance between near the spiral the junction surface of terminal electrode, obtain to prevent the effect of the 1st and the 2nd spiral short circuit at the structure of drawing that does not make spiral.
A main mode is, the step of above-mentioned convex has outstanding and do not reach the overhang of the side of above-mentioned flange part from the side of above-mentioned volume core, and is formed in the height dimension scope of side of above-mentioned volume core.Thus, can easily make the end of a spiral step up the step of above-mentioned convex.
In addition; Other main modes are, on above-mentioned flange part, are provided with the foot of separation, and; Be provided with the terminal electrode of the end of connection the above-mentioned the 1st or the 2nd spiral on one in the foot that separates, in another foot, be provided with the terminal electrode of the end that connects another spiral.Other mode is, above-mentioned volume core is rectangular shape roughly, and the step of above-mentioned convex forms in the roughly length range of the height dimension of the side of above-mentioned volume core.
Other modes that have again are that the side of above-mentioned volume core and the top of step are continuous through inclined-plane or curved surface.Mode further is that the side of above-mentioned volume core is crooked in axial cross section.Have, above-mentioned step has the above-mentioned the 1st and the width more than 1/2 and the height of the diameter of the 2nd spiral again.Further mode is to make between the flange part at above-mentioned two ends through tabular magnetic core binding.According to clear and definite above-mentioned and other purposes of the present invention of following detailed explanation and accompanying drawing, characteristic, advantage.
Description of drawings
Fig. 1 is the figure of expression embodiments of the invention 1; Fig. 1 (A) is the stereoscopic figure of winding wire type coil component; Fig. 1 (B) is the vertical view of above-mentioned winding wire type coil component; Fig. 1 (C-1) is the vertical view of core, and Fig. 1 (C-2) is the end view of core, and Fig. 1 (D) is the cutaway view that above-mentioned (C-2) cut off and observe from the direction of arrow along the #A-#A line.
Fig. 2 is the figure of expression embodiments of the invention 2, and Fig. 2 (A-1) is a stereogram, and Fig. 2 (A-2) is a vertical view, and Fig. 2 (B) is the vertical view of variation, and Fig. 2 (C) is the stereoscopic figure of variation.
Fig. 3 is the figure of expression other embodiment of the present invention.
Fig. 4 is the figure of expression other embodiment of the present invention.
Symbol description
10: winding wire type coil component
12,12A: core
14: the volume core
14A, 14B, 16A, 18A: side
16,18: flange part
17,19: inner surface
20,22: step
24A, 24B, 26A, 26B: terminal electrode
28,30: spiral
28A, 28B, 30A, 30B: end
40: winding wire type coil component
42,44: flange part
46,48: recess
50A, 50B, 52A, 52B: foot
54A, 54B, 56A, 56B: terminal electrode
58: tabular magnetic core
60: winding wire type coil component
70,90,110,130,150,160,170,190: core
72,92,112,132,152,162,172,192: the volume core
74,76,94,96,114,116,134,136: flange part
78A, 78B: bend
80、82、98、100、118、120、138、140、154、156、164、166、
174,176,178,180,194,196: step
98A, 100A: curved surface
112A, 112B, 132A, 132B: side
138A, 140A: inclined-plane
Embodiment
Below, specify the best mode of embodiment of the present invention based on embodiment.
(embodiment 1)
At first, with reference to Fig. 1 embodiments of the invention 1 are described.Fig. 1 (A) is the stereoscopic figure of the winding wire type coil component of present embodiment; Fig. 1 (B) is a vertical view of observing above-mentioned (A) from the direction of arrow F1; Fig. 1 (C-1) is a vertical view of observing core from the direction of arrow F1; Fig. 1 (C-2) is a side view of observing above-mentioned core from the direction of arrow F2, and Fig. 1 (D) is the cutaway view that above-mentioned (C-2) cut off and observe along the direction of arrow along the #A-#A line.As shown in Figure 1, the winding wire type coil component 10 of present embodiment is made up of following parts: the core 12 that has the 1st flange part 16 and the 2nd flange part 18 at the two ends of volume core 14; Be wound on the 1st spiral 28 and the 2nd spiral 30 on the above-mentioned volume core 14; Be formed on terminal electrode 24A and 26A on the 1st side 16A of above-mentioned flange part 16; Be formed on terminal electrode 26B, 28B on the 2nd side 18A of above-mentioned flange part 18.
On the 1st side 14A of the volume core 14 of above-mentioned core 12; Shown in Fig. 1 (C-1); Be formed with the step 20 of convex at position near the inner surface 17 of the 1st flange part 16; This step 20 has from the 1st side 14A of above-mentioned volume core 14 outstanding but do not arrive the overhang of the side of above-mentioned flange part 16, and in the scope of the height dimension of the 1st side 14A of above-mentioned volume core 14, forms.In addition; On the 2nd side 14B of above-mentioned volume core 14; Be formed with the step 22 of convex at position near the inner surface 19 of the 2nd flange part 18; This step 22 has from the 2nd side 14B of above-mentioned volume core 14 outstanding but do not arrive the overhang of the side of above-mentioned flange part 18, and in the scope of the height dimension of the 2nd side 14B of above-mentioned volume core 14, forms.As on the volume core 14 of above-mentioned formation, on same direction, be wound with the 1st spiral 28 and the 2nd spiral 30.In addition, as long as can access desirable characteristic, following the example of of the interval of the 1st spiral 28 and the 2nd spiral 30 can be arbitrarily.The end 28A of one side of above-mentioned the 1st spiral 28 is fixed on the terminal electrode 24A with the mode at the top through above-mentioned step 20, and the end 28B of opposite side is connected on the above-mentioned terminal electrode 24B.Equally, the end 30A of a side of the 2nd spiral 30 is connected on the terminal electrode 26A, and the end 30B of opposite side is connected on the terminal electrode 26B with the mode through above-mentioned step 22.
Above-mentioned spiral end 28A, 28B, 30A, 30B and terminal electrode 24A, 24B, 26A, 28B for example engage through methods such as thermo-compressed, at this moment, peel off the clad material of the wire rod of spiral 28,30.But, in the present embodiment, near above-mentioned junction surface,,, can prevent short circuit so can become electric insulation because a spiral in the 1st spiral 28 and the 2nd spiral 30 is positioned with the mode through step 20 and step 22.In addition, above-mentioned step 20,22 for example forms the width more than 1/2 and the 1/2 above height of the diameter of the wire rod with above-mentioned spiral 28,30.
Next, the manufacturing sequence of the winding wire type coil component 10 of present embodiment is described.The ceramic powders that is mixed with adhesive is squeezed into roughly cuboid through mould, carries out cut subsequently, the core of not fired is used base substrate.Perhaps, be squeezed into the shape of regulation through mould, the core of not fired is used base substrate.And, the core of not firing is fired with base substrate, obtain core and use base substrate.Next, apply the laggard electroplating of thickener on the bonding station of the 1st and the 2nd flange part of base substrate, form terminal electrode 24A, 24B, 26A, 26B at core.And, to the 1st and the 2 two lead carry out spiral, and above-mentioned terminal electrode 24A, 24B, 26A, 26B are last to obtain above-mentioned winding wire type coil component 10 through the end crimping is bonded on.At this moment, as stated, with the end of a side of the 1st spiral 28 with the mode through step 20 and with the end of the opposite side of the 2nd spiral 30 to locate through the mode of step 22.Pottery as above-mentioned core 12 for example adopts NiZn ferrite, MnZn ferrite, aluminium oxide, for example is employed in the material that Ag goes up plating Ni, Sn as terminal electrode 24A, 24B, 26A, 26B.In addition, the wire rod employing Cu as above-mentioned spiral 28,30 for example adopts polyurethane as its clad material.
Like this; According to embodiment 1; Have on the above-mentioned volume core 14 of core 12 of the 1st flange part 16 and the 2nd flange part 18 at the two ends of volume core 14, the step 20 of convex and the step 22 of convex are located at inner surface 19 1 sides of above-mentioned the 2nd flange part 18 of the 2nd side 14B of above-mentioned volume core 14 of inner surface 17 1 sides and above-mentioned core 12 of above-mentioned the 1st flange part 16 of the 1st side 14A respectively.And; Make the top of end 30B through above-mentioned step 20,22 of opposite side of end 28A and the 2nd spiral 30 of a side that is wound on the 1st spiral 28 on the above-mentioned volume core 14 be connected terminal electrode 24A, 26B is last, make the 1st spiral 28 opposite side end 28B and the 2nd spiral 30 a side end 30A not through above-mentioned step 20,22 be connected terminal electrode 24B, 26A is last.Therefore; Can make spiral 28,30 to draw structure uncomplicated and can not reduce rolling density; Can increase the distance between near the spiral the junction surface of itself and terminal electrode, even and have an effect that the insulating coating material of peeling off above-mentioned spiral 28,30 also can prevent short circuit.
(embodiment 2)
Below, with reference to Fig. 2 embodiments of the invention 2 are described.Fig. 2 (A-1) is the stereogram of the winding wire type coil component of embodiment 2, and Fig. 2 (A-2) is a vertical view, and Fig. 2 (B) is the vertical view of winding wire type coil component of the variation of present embodiment, and Fig. 2 (C) is the stereoscopic figure of the winding wire type coil component of expression variation.In addition, to marking identical Reference numeral with the foregoing description 1 identical and corresponding component parts.At first, the structure of the winding wire type coil component 40 shown in Fig. 2 (A-1) reaches (A-2) is following, on core 12A, is wound with spiral 28 and spiral 30, has step 20 and step 22 on the volume core 14 of said core 12A and has flange part 42 and 44 at the two ends of said core 12A.On above-mentioned flange part 42, be formed with 1 group of recess 46 that is provided with through substantial middle and the separated 50A of foot, 50B at the interarea of side when installation (for example, bottom surface side).On the flange part 44 of opposite side, be formed with similarly 1 group through the recess 48 that is provided with in the substantial middle of an above-mentioned interarea the separated 52A of foot, 52B.And at the above-mentioned 50A of foot, 50B, 52A, last terminal electrode 54A, 56A, 54B, the 56B of being formed with of 52B, the above-mentioned 50A of foot, 50B, 52A, 52B are connected with the 1st and the 2nd spiral end 28A, 30A, 28B, 30B respectively.
Above-mentioned spiral 28,30 and the foregoing description 1 are likewise; The end 28A of one side of the 1st spiral 28 is fixed on the terminal electrode 54A through the top of above-mentioned step 20, and the end 30B of the opposite side of the 2nd spiral 30 is connected on the terminal electrode 56B through the top of above-mentioned step 22.Like this, according to present embodiment, on flange part 42,44, be provided with recess 46,48, owing to be the structure that the bonding part that is connected with the spiral end is left, therefore, compare with the foregoing description 1, more difficulty is short-circuited at the junction surface.In addition; Winding wire type coil component 60 that kind shown in Fig. 2 (B) make varying in size of above-mentioned 50A of foot and 50B, and through making varying in size of above-mentioned 52A of foot and 52B; Thus with above-mentioned Fig. 2 (A-1) and the embodiment (A-2) compare near the more difficult contact junction surface.And shown in Fig. 2 (C), the upper surface when the installation of the winding wire type coil component 40 shown in above-mentioned Fig. 2 (A) can also be provided with tabular magnetic core 58 and form closed magnetic circuit.As shown in the figure; Flange part 42, link through tabular magnetic core 58 between 44; Thus, using the electronic unit apparatus for automatically loading winding wire type coil component 40 to be equipped on last times such as circuit substrate, can prevent that the parts adsorption mouth of above-mentioned loading attachment from the absorption mistake taking place.In addition, can reduce the deflection of the flux of drum type core.
In addition, the invention is not restricted to the foregoing description, in the scope that does not break away from technological thought of the present invention, can append various changes.For example, comprise following content.
(1) shape shown in the foregoing description, size are examples, can suitably change as required.For example, in the foregoing description 1, the volume core 14 of core 12 is formed roughly rectangular shape, still, core 70 that kind shown in Fig. 3 (A), the side that also can have the volume core 72 of flange part 74,76 at two ends forms bend 78A, 78B.In addition, above-mentioned bend 78A and 78B are formed spiral the coiling width W about 0.1～4%, thus, can make the fixing-stable of the spiral 28,30 in step 80 and the step 82.In addition, core 90 that kind shown in Fig. 3 (B) have at two ends on the volume core 92 of flange part 94,96 step 98,100 are set, and, can make the top of this step 98,100 and above-mentioned volume core 92 continuous through curved surface 98A, 100A.And, reel along above-mentioned curved surface 98A, 100A through making the spiral on the top that is not fixed on above-mentioned step 98,100, can increase the contact area with spiral, thereby stably fix.In addition, the curvature of above-mentioned curved surface 98A, 100A for example is about 10～100 μ m.
(2) in the foregoing description 1, in the roughly length range of the height dimension of side 14A, the 14B of volume core 14, be formed with step 20,22, but this only is an example, can suitably change as required.For example; In the example of the core 110 shown in Fig. 3 (C-1) reaches (C-2); Two ends at volume core 112 have flange part 114,116; And, on the bight of the 1st side 112A, be provided with step 118 near the end of the 1st flange part 114, on the bight of the 2nd side 112B, be provided with step 120 in addition near the end of the 2nd flange part 116.In addition; In the example of the core 130 shown in Fig. 3 (D-1) reaches (D-2); Two ends at volume core 132 have the 1st flange part 134 and the 2nd flange part 136, and, be provided with step 138 in the substantial middle portion of the 1st side 132A near the end of the 1st flange part 134; In addition, the substantial middle portion near the end of the 2nd flange part 136 at the 2nd side 132B is provided with step 140.In addition, in embodiment illustrated, above-mentioned step 138,140 is continuous through inclined- plane 138A, 140A and above-mentioned volume core 132.Through such inclined- plane 138A, 140A are set, with the example shown in above-mentioned Fig. 3 (B) likewise can make the fixing-stable of wire rod owing to increased the contact area of spiral.
(3) in the foregoing description 1, the cross section of volume core 14 is rectangle roughly, and still, this is an example, can suitably change as required.For example, core 150 that kind shown in Fig. 4 (A) have on the volume core 152 of octagonal cross sectional shape roughly, and 1 rank 154,156 of organizing a performance can relatively be set.In addition, core 160 that kind shown in Fig. 4 (B) are roughly the outer peripheral face of oval-shaped volume core 162 in the cross section, the planar step of 1 suite 164,166 can relatively be set.And core 170 that kind shown in Fig. 4 (C) are roughly in the cross section on four protuberances of criss-cross volume core 172 and are provided with step 174,176,178,180, can utilize arbitrarily fixedly spiral of step.In addition, core 190 that kind shown in Fig. 4 (D) have on the volume core 192 that is forming the cross sectional shape of the protuberance of semicircle shape roughly on the rectangular minor face roughly, can divide at this long leg of rolling up core 192 1 rank 194,196 of organizing a performance are set.Certainly, the cross sectional shape of volume core shown in Fig. 4 (A)～(D) and step also is an example, as long as can access same effect, can suitably change as required.
(4) material shown in the foregoing description also is an example, can utilize known various material.
(5) manufacturing sequence shown in the foregoing description also is an example, can suitably change as required.
(6) winding number of the spiral shown in the foregoing description 28,30 also is an example, can suitably change as required.
(7) the tabular magnetic core 58 shown in the foregoing description 2 also is an example, can be located on the winding wire type coil component 10 of embodiment 1.
(8) coil component of the present invention be working signal good make use-case, but also can be applicable to the purposes of all jumbo image shakes transmission.
Industrial applicibility
According to the present invention; Be provided with the core of the 1st and the 2nd flange part at the two ends of volume core; Be wound with the 1st and the 2nd spiral at volume on the core, the end of this spiral is connected with terminal electrode on being located at above-mentioned each flange part, near near the 2nd flange part of the 2nd side that reaches above-mentioned volume core the 1st flange part of the 1st side of above-mentioned volume core; Be respectively equipped with the step of convex; The step of this convex be used to form make between the above-mentioned the 1st and the 2nd spiral can electric insulation distance, and, the top through above-mentioned step, the end of the opposite side of the end of a side of above-mentioned the 1st spiral and the 2nd spiral is connected on the above-mentioned terminal electrode.Thus, owing to can become complicated or do not reduce under the situation of rollback density of spiral, increase and the distance between near the spiral the junction surface of terminal electrode, therefore, can be applicable to winding wire type coil component at the structure of drawing that does not make spiral.Especially, be applicable to common mode choke.
Claims (8)
1. a winding wire type coil component has: the core that is provided with the 1st and the 2nd flange part at the two ends of volume core; The the 1st and the 2nd spiral of on said volume core, reeling; Be formed on said each flange part and be connected with the terminal electrode of the end of said each spiral respectively, it is characterized in that:
At near near the step that is respectively equipped with convex the 1st flange part of the 1st side of said volume core and the 2nd flange part of the 2nd side of said volume core, and,
The end of one side of a spiral in the said the 1st and the 2nd spiral is connected on the terminal electrode on said the 1st flange part through near the top of the step of the convex the 1st flange part of the 1st side of said volume core; The end of one side of another spiral is not connected on the terminal electrode on said the 1st flange part through near the step of the convex said the 1st flange part
The end of the opposite side of said another spiral is connected on the terminal electrode on said the 2nd flange part through near the top of the step of the convex the 2nd flange part of the 2nd side of said volume core, and the end of the opposite side of a said spiral is not connected on the terminal electrode on said the 2nd flange part through near the step of the convex said the 2nd flange part.
2. winding wire type coil component as claimed in claim 1; It is characterized in that: near the step of the convex that said the 1st flange part, is provided with has the overhang of giving prominence to and do not reach the side of said the 1st flange part from the 1st side of said volume core; And be formed in the height dimension scope of the 1st side of said volume core; Near the step of the convex that said the 2nd flange part, is provided with has outstanding and do not reach the overhang of the side of said the 2nd flange part from the 2nd side of said volume core, and is formed in the height dimension scope of the 2nd side of said volume core.
3. winding wire type coil component as claimed in claim 1; It is characterized in that: the foot that on each said flange part, is provided with separation; And; Be provided with the terminal electrode of an end of end connecting said the 1st spiral or the 2nd spiral on one in the foot that separates, in another foot, be provided with the terminal electrode of the end that connects another spiral.
4. winding wire type coil component as claimed in claim 3; It is characterized in that: said volume core is rectangular shape roughly; Near the step of the convex that said the 1st flange part, is provided with; In the roughly length range of the height dimension of the 1st side of said volume core, form, near the step of the convex that said the 2nd flange part, is provided with forms in the roughly length range of the height dimension of the 2nd side of said volume core.
5. according to claim 1 or claim 2 winding wire type coil component; It is characterized in that: the top of the 1st side of said volume core and near said the 1st flange part, be provided with step is continuous through inclined-plane or curved surface, and the top of the 2nd side of said volume core and near said the 2nd flange part, be provided with step is continuous through inclined-plane or curved surface.
6. according to claim 1 or claim 2 winding wire type coil component, it is characterized in that: the 1st side and the 2nd side at said volume core are formed with bend.
7. according to claim 1 or claim 2 winding wire type coil component is characterized in that: near the step that each said flange part, is provided with has the said the 1st and the width more than 1/2 and the height of the diameter of the wire rod of the 2nd spiral.
8. according to claim 1 or claim 2 winding wire type coil component is characterized in that: link through tabular magnetic core between the said the 1st and the 2nd flange part.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007-265370 | 2007-10-11 | ||
| JP2007265370 | 2007-10-11 | ||
| JP2007265370A JP4796560B2 (en) | 2007-10-11 | 2007-10-11 | Wire-wound coil parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101477872A CN101477872A (en) | 2009-07-08 |
| CN101477872B true CN101477872B (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101696147A Active CN101477872B (en) | 2007-10-11 | 2008-10-09 | Winding wire type coil component |
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| Country | Link |
|---|---|
| JP (1) | JP4796560B2 (en) |
| CN (1) | CN101477872B (en) |
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| KR101468821B1 (en) | 2012-12-19 | 2014-12-03 | 티디케이가부시기가이샤 | Common mode filter |
| JP5825249B2 (en) * | 2012-12-19 | 2015-12-02 | Tdk株式会社 | Common mode filter |
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| JP7205365B2 (en) * | 2019-04-19 | 2023-01-17 | 株式会社村田製作所 | coil parts |
| JP7367447B2 (en) * | 2019-10-15 | 2023-10-24 | 株式会社村田製作所 | Coil components and their manufacturing methods, and electronic components mounted with coil components |
| JP7230882B2 (en) * | 2020-05-27 | 2023-03-01 | 株式会社村田製作所 | coil parts |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334572A (en) * | 2000-07-17 | 2002-02-06 | 株式会社村田制作所 | Plate type common mode choke |
| CN1949415A (en) * | 2005-10-03 | 2007-04-18 | 东京零件工业股份有限公司 | Coiling sheet stype common mode choking coil |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0427141Y2 (en) * | 1986-03-19 | 1992-06-30 | ||
| JPH10163029A (en) * | 1996-11-26 | 1998-06-19 | Tokin Corp | Common mode choke coil |
| JP3168972B2 (en) * | 1998-01-14 | 2001-05-21 | 株式会社村田製作所 | Chip type common mode choke coil |
| JP3195585B2 (en) * | 1998-10-27 | 2001-08-06 | ティーディーケイ株式会社 | Surface mount self-induction type inductance component |
| JP2001267138A (en) * | 2000-03-21 | 2001-09-28 | Matsushita Electric Ind Co Ltd | Inductance element |
| JP4673499B2 (en) * | 2001-05-01 | 2011-04-20 | コーア株式会社 | Chip coil |
| JP4085619B2 (en) * | 2001-11-13 | 2008-05-14 | 株式会社村田製作所 | Winding type coil |
| JP3960977B2 (en) * | 2003-02-17 | 2007-08-15 | 株式会社フォノン明和 | Common mode coil |
| JP4064301B2 (en) * | 2003-05-30 | 2008-03-19 | 東光株式会社 | Chip type common mode choke coil |
| JP2007214453A (en) * | 2006-02-10 | 2007-08-23 | Tdk Corp | Wire-wound electronic component |
| JP4544222B2 (en) * | 2006-09-08 | 2010-09-15 | Ｔｄｋ株式会社 | Common mode choke coil |
-
2007
- 2007-10-11 JP JP2007265370A patent/JP4796560B2/en not_active Expired - Fee Related
-
2008
- 2008-10-09 CN CN2008101696147A patent/CN101477872B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334572A (en) * | 2000-07-17 | 2002-02-06 | 株式会社村田制作所 | Plate type common mode choke |
| CN1949415A (en) * | 2005-10-03 | 2007-04-18 | 东京零件工业股份有限公司 | Coiling sheet stype common mode choking coil |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4796560B2 (en) | 2011-10-19 |
| JP2009094389A (en) | 2009-04-30 |
| CN101477872A (en) | 2009-07-08 |
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