CN102097200B - Core column component of winding type pasted electronic element and manufacturing method thereof - Google Patents
Core column component of winding type pasted electronic element and manufacturing method thereof Download PDFInfo
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- CN102097200B CN102097200B CN 201010596307 CN201010596307A CN102097200B CN 102097200 B CN102097200 B CN 102097200B CN 201010596307 CN201010596307 CN 201010596307 CN 201010596307 A CN201010596307 A CN 201010596307A CN 102097200 B CN102097200 B CN 102097200B
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Abstract
The invention discloses a core column component of a winding type pasted electronic element and a manufacturing method of the core column component. The core column component comprises a core column and an external electrode, wherein the core column comprises a left-end convex part, a right-end convex part and a core column body which is connected with the left-end and right-end convex parts, grooves are arranged on both the left-end and right-end convex parts, and the external electrode continuously covers the upper surfaces of the left-end and right-end convex parts and the surface of the groove. The method of the invention is used for manufacturing the core column component. By means of the core column component of the invention, coil ends with various wire diameters can be conveniently welded without increasing the overall height of the product.
Description
Technical field
The present invention relates to mounted with electronic components, particularly relate to a kind of stem stem parts and manufacture method thereof of the class mounted with electronic components that winds the line.
Background technology
Along with the development of electronic technology, electronic devices and components are gradually to chip type, miniaturization, large electric current, high reliability development, require product can adapt to that high speed is intensive to be mounted.
For common coiling class patch products, end winding generally links together with two electrodes of stem stem are electric respectively continuously by thermal compression welding or wicking mode.When wire diameter is thicker, the coil two ends are difficult to imbed completely in the stem stem electrode metal layer, and wire rod can obviously exceed the stem stem electrode plane, thereby cause the product electrode surface uneven, welding performance when affecting product and mounting electrical open even occurs bad when situation is serious.
General conventional improvement method is to increase stem stem electrode metal layer thickness, guarantees that line end can be absorbed in electrode metal layer fully.The applicable wire diameter of the method is limited, generally is no more than 0.06mm, and can obviously increase the product whole height.
Summary of the invention
Technical problem to be solved by this invention is that a kind of stem stem parts and manufacture method thereof of the class mounted with electronic components that winds the line is provided.
The present invention solves the problems of the technologies described above by the following technical programs:
A kind of stem stem parts of the class mounted with electronic components that winds the line comprise stem stem and outer electrode, it is characterized in that: described stem stem comprises left end teat, right-hand member teat and the stem stem main body that connects described left end teat and right-hand member teat; Be equipped with groove on described left end teat and right-hand member teat, on the upper surface that covers described left end teat and right-hand member teat that described outer electrode is continuous and the surface of described groove.
Preferably, the upper surface of the upper surface of described left end teat and described right-hand member teat is in identical plane.
Described stem stem can be ceramic material or ferrite material, to adapt to the requirement of different electronic components.
For keeping mounted with electronic components integral body to mount the good coplane degree of face and protect the solder joint of coil end, the end face that described groove is arranged so that the solder joint that forms after the coil end welding is in same plane with the plane at the outer electrode place that covers described left end teat and right-hand member teat upper surface.
A kind of manufacture method of stem stem parts of the class mounted with electronic components that winds the line, comprise the following steps: the stem stem forming step: core column material is prepared formation stem stem idiosome in the prefabricated mould of getting ready, stem stem after the shape of this stem stem idiosome makes and makes comprises left end teat, right-hand member teat and the stem stem main body that connects described left end teat and right-hand member teat, and is equipped with groove on described left end teat and right-hand member teat; Stem stem sintering step: described stem stem idiosome is formed stem stem at predetermined temperature lower calcination; Outer electrode forms step: form continuous outer electrode on the surface of the upper surface of described left end teat and right-hand member teat and described groove.
When described stem stem adopts FERRITE CORE; Described stem stem forming step comprises: will contain ambrose alloy Zn ferrite material powder, resin, adhesive, lubricant and plasticizer and carry out mixing, curing molding in die cavity through inject described mould after granulation with injection (mo(u)lding) machine under the heating plasticizing state forms the FERRITE CORE base substrate.
Preferably, the upper surface of the upper surface of described left end teat and described right-hand member teat is in identical plane.
Further, the described groove end face that is arranged so that the solder joint that forms after coil end welding is in same plane lower than the plane at the outer electrode place that covers described left end teat and right-hand member teat upper surface.
The present invention comprises with respect to the beneficial effect of prior art: the groove that is used for the welding coil end of setting up makes stem stem parts of the present invention in the situation that do not increase the product whole height, to weld easily the coil end of various wire diameter sizes.
Further the beneficial effect of technical scheme also comprises: groove is arranged so that the solder joint external electrode plane of coil end is in same plane, therefore, adopt the mounted with electronic components product of these stem stem parts to have better coplanarity, be convenient to surface mount, and the solder joint of this product is positioned at below electrode plane fully, when the manufacturing, testing electrical property, transportation store and mount use, all should not be subject to extraneous utensil touching damage, effectively improved the product reliability energy.
Description of drawings
Fig. 1 is the structural representation of the stem stem parts of the specific embodiment of the invention one;
Fig. 2 a is the vertical view of the stem stem parts of Fig. 1;
Fig. 2 b is the left view of the stem stem parts of Fig. 1;
Fig. 2 c is the front view of the stem stem parts of Fig. 1;
Fig. 3 is the structural representation of the stem stem parts of the specific embodiment of the invention two;
Fig. 4 a is the vertical view of the stem stem parts of Fig. 3;
Fig. 4 b is the left view of the stem stem parts of Fig. 3;
Fig. 4 c is the front view of the stem stem parts of Fig. 3;
Fig. 5 is the manufacturing process block diagram of the stem stem parts of Fig. 3;
Fig. 6 is the Product Status figure in the manufacture process of stem stem parts of Fig. 3;
The structural representation of the stem stem parts of Fig. 7 specific embodiment of the invention three;
The structural representation of the stem stem parts of Fig. 8 specific embodiment of the invention four.
Embodiment
The below's contrast accompanying drawing also is explained in detail the present invention in conjunction with preferred embodiment.
Embodiment one
As shown in Fig. 1 to Fig. 2 c, a kind of stem stem parts of the class mounted with electronic components that winds the line, comprise stem stem and outer electrode 31a, 31b, described stem stem comprises left end teat 11a, right-hand member teat 11b and connects described left end teat 11a and the stem stem main body 12 of right-hand member teat 11b; Left end teat 11a is provided with groove 21a, and right-hand member teat 11b is provided with groove 21b; On the upper surface that covers left end teat 11a that outer electrode 31a is continuous and the surface of groove 21a, on the upper surface that covers right-hand member teat 11b that outer electrode 31b is continuous and the surface of groove 21b, be more firm after the stem stem parts are mounted, increase outer electrode and the contact area that mainboard is installed, also be coated with external electrode layer on the part side of the left end teat 11a of the stem stem parts of this embodiment and right-hand member teat 11b.
Groove 21a, 21b have certain degree of depth, can be fixed in groove by mode or other welding manners coil end that wire diameter is thicker of thermal compression welding, and form continuous electrical connection with outer electrode.Manufactured goods solder joint end face remains in same level with the outer electrode 31a, the 31b that cover left end teat 11a, right-hand member teat 11b upper surface, and the product coplane degree is good, is convenient to surface mount.For example working as depth of groove is 0.12mm, be that 0.16mm copper cash termination is placed in groove with wire diameter, after carrying out thermal compression welding, the plane (hereinafter referred to as electrode plane) at manufactured goods solder joint surface and the outer electrode 31a that covers left end teat 11a, right-hand member teat 11b upper surface, 31b place will be in same level, have good coplane degree performance.
The setting of groove 21a, 21b not only makes manufactured goods have good surface mount performance, is conducive to simultaneously protect manufactured goods solder joint parts, makes it not to be vulnerable to extraneous mechanical damage.Because groove is lower than electrode plane, the solder joint main body after thermal compression welding is positioned at below electrode plane fully, when the manufacturing, testing electrical property, transportation store and mount use, all should not be subject to extraneous utensil touching damage, has effectively improved the product reliability energy.
Embodiment two
As shown in Fig. 3 to Fig. 4 c, the stem stem parts of the coiling class mounted with electronic components of this embodiment are a kind of magnetic core components, comprise stem stem and outer electrode, its overall structure is identical with the stem stem parts of the coiling class mounted with electronic components of embodiment one, and difference is: the stem stem of this embodiment adopts the magnetic core of ferrite material.
As shown in Fig. 5 to 6, the fabrication processing of the stem stem parts of the coiling class mounted with electronic components of this embodiment is as follows:
Step S1: the mould preparatory process, namely make for the die needed operation of form forming magnetic core in advance.As a kind of embodiment, can utilize machined into to become the magnetic core outer shell shape in high rigidity, anti abrasive wolfram steel, form to make the required mould protuberance of magnetic core groove, then the mode such as annealed is eliminated magnetic field and the electrostatic field in mould.
Step S2: form forming magnetic core operation, the i.e. operation of the magnetic idiosome that the mould that utilization prepares in advance and core material prepare reservation shape, specification.As a kind of specific embodiment, can carry out mixing with containing ambrose alloy Zn ferrite material powder, resin, adhesive, lubricant and plasticizer, (100～200 ℃) inject curing molding in die cavity with injection (mo(u)lding) machine under the heating plasticizing state after granulating, and form the FERRITE CORE base substrate
Step S3: the magnetic core sintering circuit is about to the operation that magnetic core blank sintering that step S2 prepares becomes magnetic core.As specific embodiment, then the magnetic core base substrate degreasing that step S2 can be made is calcined under 800-1000 ℃ and was obtained FERRITE CORE in 2 ~ 3 hours.
Step S4: outer electrode forms operation, namely forms the operation of outer electrode metal level on the left end teat of magnetic core and right-hand member teat.As a kind of embodiment, can be by being stained with the method for silver, with groove 21a, the 21b surface of above-mentioned FERRITE CORE; The upper surface of left end teat 11a and right-hand member teat 11b; And a part of side coating one deck silver slurry of left end teat 11a and right-hand member teat 11b, then with magnetic core 680 ℃ of lower sintering 20～30 minutes; Again by electroplating technology, nickel plating and tin successively on the silver layer of magnetic core, thus forming outer electrode 31a, 31b, the thickness of preferred tin layer is: 10 ~ 25 μ m.
For adapting to different demands, the suitable depth of groove of wire diameter size design of the coiling 13 that can use according to expectation, general expectation uses the wire diameter of coiling larger, shown in the degree of depth of groove larger; Otherwise expectation uses wire diameter less, and the degree of depth of groove is less.If expectation uses wire diameter less than 0.05mm, do not advise designing groove on the step of the end of stem stem.
As shown in table 1, when winding the line the termination for adopting the thermal compression welding technology to weld, different wire rod wire diameters and the depth of groove relation of recommendation.
Table 1 wire diameter and depth of groove proportioning suggested design
During use, to wind the line and 13 be wound on stem stem main body 12, and 13 two terminations of winding the line adopt respectively the thermal compression welding technology to be welded in groove 21a, the 21b at described stem stem two ends, form electrical connection with external electrode, generally, the above coiling of wire diameter 0.4mm is not suitable for welding procedure of hot pressing.
If other solder technology that the employing thermal compression welding is outer, for example: the wicking mode, can design depth of groove according to the feature that solder technology forms solder joint, to keep the coplane degree of finished product solder joint and electrode plane.
Embodiment three
As shown in Figure 7, the stem stem parts difference of the coiling class mounted with electronic components of this embodiment and embodiment one only is: groove 21a, the 21b of this embodiment lays respectively at left end teat 11a, 11b middle part, and intersects acute angle with electrode plane.
Embodiment four
As shown in Figure 8, the difference of the stem stem parts of the coiling class mounted with electronic components of this embodiment and embodiment one only is: groove 21a, the 21b of this embodiment lays respectively at left end teat 11a, 11b opposite edges positions.
Stem stem parts of the present invention are applicable to make the electronic devices and components such as chip pottery wire-wound inductor, chip iron oxygen winding body inductance, chip coiling co-mode coil, but are not limited to above-mentioned electronic devices and components.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that concrete enforcement of the present invention is confined to these explanations.For those skilled in the art, without departing from the inventive concept of the premise, can also make some being equal to substitute or obvious modification, and performance or purposes identical, all should be considered as belonging to protection scope of the present invention.
Claims (4)
1. the stem stem parts of the class mounted with electronic components that winds the line, comprise stem stem and outer electrode, it is characterized in that: described stem stem comprises left end teat, right-hand member teat and the stem stem main body that connects described left end teat and right-hand member teat; Be equipped with groove on described left end teat and right-hand member teat, on the upper surface that covers described left end teat and right-hand member teat that described outer electrode is continuous and the surface of described groove, also be coated with external electrode layer on the part side of described left end teat and right-hand member teat, after the degree of depth of described groove was arranged so that the coil end that winds the line directly is fixed in this groove by thermal compression welding, the end face of formed solder joint was in same plane with the plane at the outer electrode place that covers described left end teat and right-hand member teat upper surface;
The upper surface of the upper surface of described left end teat and described right-hand member teat is in identical plane, and when the wire diameter of described coil end was 0.06mm, the degree of depth of described groove was set to 0.03mm; When the wire diameter of described coil end was 0.08mm, the degree of depth of described groove was set to 0.04mm; When the wire diameter of described coil end was 0.10mm, the degree of depth of described groove was set to 0.06mm; When the wire diameter of described coil end was 0.12mm, the degree of depth of described groove was set to 0.075mm; When the wire diameter of described coil end was 0.16mm, the degree of depth of described groove was set to 0.10mm; When the wire diameter of described coil end was 0.20mm, the degree of depth of described groove was set to 0.13mm; When the wire diameter of described coil end was 0.25mm, the degree of depth of described groove was set to 0.17mm; When the wire diameter of described coil end was 0.30mm, the degree of depth of described groove was set to 0.21mm; When the wire diameter of described coil end was 0.35mm, the degree of depth of described groove was set to 0.26mm; When the wire diameter of described coil end was 0.40mm, the degree of depth of described groove was set to 0.31mm.
2. stem stem parts according to claim 1, it is characterized in that: described stem stem is ceramic material or ferrite material.
3. the manufacture method of the stem stem parts of the class mounted with electronic components that winds the line, is characterized in that, comprises the following steps:
Stem stem forming step: core column material is prepared formation stem stem idiosome in the prefabricated mould of getting ready, stem stem after the shape of this stem stem idiosome makes and makes comprises left end teat, right-hand member teat and the stem stem main body that connects described left end teat and right-hand member teat, and is equipped with groove on described left end teat and right-hand member teat;
Stem stem sintering step: described stem stem idiosome is formed stem stem at predetermined temperature lower calcination;
Outer electrode forms step: forms continuous outer electrode on the surface of the upper surface of described left end teat and right-hand member teat and described groove, also cover external electrode layer on the part side of described left end teat and right-hand member teat;
After the degree of depth of described groove was arranged so that the coil end that winds the line directly is fixed in this groove by thermal compression welding, the end face of formed solder joint was in same plane with the plane at the outer electrode place that covers described left end teat and right-hand member teat upper surface;
The upper surface of the upper surface of described left end teat and described right-hand member teat is in identical plane; , when the wire diameter of described coil end was 0.06mm, the degree of depth of described groove was set to 0.03mm; When the wire diameter of described coil end was 0.08mm, the degree of depth of described groove was set to 0.04mm; When the wire diameter of described coil end was 0.10mm, the degree of depth of described groove was set to 0.06mm; When the wire diameter of described coil end was 0.12mm, the degree of depth of described groove was set to 0.075mm; When the wire diameter of described coil end was 0.16mm, the degree of depth of described groove was set to 0.10mm; When the wire diameter of described coil end was 0.20mm, the degree of depth of described groove was set to 0.13mm; When the wire diameter of described coil end was 0.25mm, the degree of depth of described groove was set to 0.17mm; When the wire diameter of described coil end was 0.30mm, the degree of depth of described groove was set to 0.21mm; When the wire diameter of described coil end was 0.35mm, the degree of depth of described groove was set to 0.26mm; When the wire diameter of described coil end was 0.40mm, the degree of depth of described groove was set to 0.31mm.
4. manufacture method according to claim 3, it is characterized in that: described stem stem is FERRITE CORE; Described stem stem forming step comprises: will contain ambrose alloy Zn ferrite material powder, resin, adhesive, lubricant and plasticizer and carry out mixing, curing molding in die cavity through inject described mould after granulation with injection (mo(u)lding) machine under the heating plasticizing state forms the FERRITE CORE base substrate.
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| CN 201010596307 CN102097200B (en) | 2010-12-20 | 2010-12-20 | Core column component of winding type pasted electronic element and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102360784A (en) * | 2011-09-26 | 2012-02-22 | 深圳市金瑞中核电子有限公司 | I-shaped magnetic core and manufacturing method thereof |
| CN104795201B (en) * | 2015-04-23 | 2017-08-15 | 深圳振华富电子有限公司 | Common-mode inductor |
| KR20170136354A (en) * | 2016-06-01 | 2017-12-11 | 삼성전기주식회사 | Chip antenna |
| CN106590345A (en) * | 2016-12-19 | 2017-04-26 | 深圳顺络电子股份有限公司 | Magnetic glue and inductor device using same |
| US10998613B2 (en) | 2017-03-23 | 2021-05-04 | Wits Co., Ltd. | Chip antenna |
| KR102653200B1 (en) * | 2018-10-29 | 2024-04-01 | 삼성전기주식회사 | Inductor |
| CN109727756A (en) * | 2019-01-25 | 2019-05-07 | 苏州隆亿电子科技有限公司 | Patch type inductor and manufacturing method |
| CN110517868A (en) * | 2019-09-24 | 2019-11-29 | 苏州欧普照明有限公司 | Inductance framework, inductance device and lamps and lanterns |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101728059A (en) * | 2008-10-31 | 2010-06-09 | 株式会社村田制作所 | Electronic component and manufacturing method thereof |
| CN101752059A (en) * | 2010-01-18 | 2010-06-23 | 深圳顺络电子股份有限公司 | Winding power inductance component and manufacturing method thereof |
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| TW373197B (en) * | 1997-05-14 | 1999-11-01 | Murata Manufacturing Co | Electronic device having electric wires and the manufacturing method thereof |
| JP3456454B2 (en) * | 1999-09-30 | 2003-10-14 | 株式会社村田製作所 | Electronic components with wires |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728059A (en) * | 2008-10-31 | 2010-06-09 | 株式会社村田制作所 | Electronic component and manufacturing method thereof |
| CN101752059A (en) * | 2010-01-18 | 2010-06-23 | 深圳顺络电子股份有限公司 | Winding power inductance component and manufacturing method thereof |
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