CN104269252A - High-precision all-in-one soft magnetic core - Google Patents
High-precision all-in-one soft magnetic core Download PDFInfo
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- CN104269252A CN104269252A CN201410548246.2A CN201410548246A CN104269252A CN 104269252 A CN104269252 A CN 104269252A CN 201410548246 A CN201410548246 A CN 201410548246A CN 104269252 A CN104269252 A CN 104269252A
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Abstract
The invention discloses a high-precision all-in-one soft magnetic core. The high-precision all-in-one soft magnetic core comprises a cup-shaped magnetic core body, a central post for winding coils is conically formed at the center of the magnetic core body, the top of the central post is parallel to the cup mouth of the magnetic core body, a groove for locating is formed in the head face of the central post, a conical table is arranged at the center of a magnetic cap, and the magnetic cap is arranged on a groove locating hole in the end of the central post through the conical table; the cross section of the central post is round or elliptic; at least one pair of symmetrical lead grooves for leading out coils is opened in the head face of the cup mouth of the magnetic core body. The high-precision all-in-one soft magnetic core is capable of simplifying the magnetic core production technique, compared with a traditional magnetic core, the material is saved, the procedure is reduced, and the cost is lower; a forming machine is directly used for forming in one die in the magnetic core manufacturing process, the grooving procedure is saved, the cost is lowered, and the dust pollution is avoided.
Description
Technical field
The present invention relates to inductance field, refer in particular to a kind of high-accuracy one-body molded soft magnetic core.
Background technology
Instantly manufacturing three great development themes: cost declining, automation, environmental protection, and based on inductance core, element also must agree with requirement and just can have new development.Subsides inductance manufacture craft traditional at present generally adopts I-type magnetic core to be core, around the method for upper enamel covered wire then scolding tin.The shortcoming of this technique has: I-type magnetic core kind through cutting action, will to produce a large amount of dust and pollute producing; The needs of inductance manufacturing process enamel covered wire around on I-type magnetic core, due to will the operations such as curved line, broken line, trimming be carried out, usually want the hand-made work of employment and not easily realize automation, and the existing equipment realizing automation is because structure is very complicated so that price is very expensive, therefore inductance industry needs to drop into a large amount of human resources or huge equipment investment, seriously restricts the development of industry; And after product coiling, also needing the operation through high temperature scolding tin, the end of a thread and electrode tip are merged, because temperature height can cause magnetic core to occur secretly splitting problem, makes goods there is reliability risk hidden danger, this problem annoyings industry always and could not solve completely; And I-type magnetic core is open-flux path, inductance value is done not high, to reach closed magnetic circuit magnetic core, inductance value is improved, then will adopt a magnetic adhesive process, but the control of magnetic glue amount, directly affects inductance value accuracy and wayward.Therefore, there is various defect based on conventional patch technique and magnetic.
Summary of the invention
The making of magnetic core of the present invention adopts one-shot forming out without the need to cutting action, saves cost and avoids dust pollution question simultaneously.Coiler part coiling machine automatic winding simultaneously, when coiling, equipment just can bend the end of a thread the enamel-cover film putting and remove the end of a thread in place easily, as long as spring coil is directly put into magnetic core when assembling, process is convenient and simple, is very easy to realize automatic assembling.Because the enamel-cover film of the end of a thread is removed, so scolding tin can be exempted from or the end of a thread and termination electrode can be merged and can not hurt magnetic core itself with low temperature scolding tin.The present invention has the assembly of a magnetic cap, be assembled into the effect that goods just can realize closed magnetic circuit, thus improve inductance value and anti-EMI filter function, again because the dimensional accuracy of magnetic cap is high and have location hole, the inductance performance of product can be made to reach the requirement of high accuracy and high stability.
For achieving the above object, technical scheme provided by the present invention is: a kind of high-accuracy one-body molded soft magnetic core, it comprises the magnetic core array with cup-like structure, the center taper of described magnetic core array works the newel being formed with coil around the home, newel top is concordant with magnetic core array rim of a cup, newel endface position is provided with groove location, and magnetic cap center is provided with taper platform, and is assemblied on the groove location hole of newel end by this taper platform; The shape of cross section of described newel is circular or oval; The rim of a cup endface position of magnetic core array offers the wire lead slot for drawing coil that at least one pair of is symmetrical.
The shape of cross section of described magnetic core array is polygon or the polygon with corner cut.
The shape of cross section of described magnetic core array is circular or has the circle of trimming.
Described magnetic core array is two mode field.
After above-mentioned soft magnetic core completes, its technique preparing inductance is:
1), be made into one soft magnetic core, makes spring coil, for subsequent use;
2), by mounting coil on the newel of magnetic core, coil pin is made to be placed in wire lead slot;
3), by magnetic cap be fastened on newel groove location hole.
The invention has the advantages that:
The first, can simplify core production technique, manufacturing process will save M&P than conventional cores and cost is lower; Directly go out with forming machine one-shot forming in magnetic core manufacture process, save grooving operation and reduce costs and avoid dust pollution.
The second, cleverly design easily can realize the needs of automatic assembling, when manufacturing inductance, coil processes by available auto spring coil machine automatically, only coil need be inserted in magnetic core fixing after, entered in center pillar recess hole by magnetic cap and just can carry out product, assembling process facilitates simple and easy and high efficiency.
Three, product has the function of closed magnetic circuit, makes it the function with anti-EMI filter.
Four, the spring coil used by the present invention is very easy to make various type shape, and convenient and magnetic core is assembled.Its end of a thread peels insulating varnish off, with low temperature scolding tin or can exempt from scolding tin, protects the impact of magnetic core from thermal shock well, and improves reliability.
Five, the dust pollution not having traditional product was made in production, can environmental protection more.The present invention breaches the development bottleneck of inductance core industry, can be used for replacing product specifications traditional in a large number, has the very large market advantage, and promotion industry, to the requirement of product, is entered the period of another tremendous development by the market greatly met.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the magnetic cap schematic diagram of the embodiment of the present invention 1.
Fig. 3 is the assembling schematic diagram of the embodiment of the present invention 1.
Fig. 4 is the structural representation of the embodiment of the present invention 2.
Fig. 5 is the structural representation of the embodiment of the present invention 3.
Fig. 6 is the structural representation of the embodiment of the present invention 4.
Fig. 7 is the structural representation of the embodiment of the present invention 5.
Embodiment
Below in conjunction with institute's drawings attached, the invention will be further described, and preferred embodiment of the present invention is:
Embodiment 1
See accompanying drawing 1 to accompanying drawing 3, novel magnetic core described in the present embodiment comprises the magnetic core array 1 with cup-like structure, the cross section be provided with in the center of magnetic core array 1 for coil is around the home circular newel 2, and newel endface position is provided with groove location hole 3, for the spacing fixing use of magnetic cap.Magnetic cap 5 center is provided with taper platform, for fixed magnetic core newel position, plays the effect of shielding closed magnetic circuit.The top of magnetic core array 1 offers a pair symmetrical wire lead slot for drawing coil.Be provided with the electrode for soldered circuit board near wire lead slot place bottom magnetic core array 1.The cutting on the cross of magnetic core array 1 is except forming the polygon with diagonal angle, and cut-out mainly may be used for distinguishing magnetic core direction, and relative wire lead slot is opened on the relative angle of magnetic core array 1.
Embodiment 2:
See accompanying drawing 4, the novel magnetic core of the present embodiment comprises the magnetic core array 1 with cup-like structure, the cross section be provided with in the center of magnetic core array 1 for coil is around the home circular newel 2, and newel endface position is provided with groove location hole, for the spacing fixing use of magnetic cap.Magnetic cap 5 center is provided with taper platform, for fixed magnetic core newel position, plays the effect of shielding closed magnetic circuit.The top of magnetic core 1 offers a pair symmetrical wire lead slot for drawing coil.Be provided with the electrode for soldered circuit board near wire lead slot place bottom magnetic core array 1.One clipped corner of magnetic core array 1 forms the polygon with corner cut, and cut-out mainly may be used for distinguishing magnetic core direction.
Embodiment 3:
See accompanying drawing 5, the novel magnetic core of the present embodiment comprises the magnetic core array 1 with cup-like structure, the cross section be provided with in the center of magnetic core array 1 for coil is around the home circular newel, and newel endface position is provided with groove location hole, for the spacing fixing use of magnetic cap.Magnetic cap 5 center is provided with taper platform, for fixed magnetic core newel position, plays the effect of shielding closed magnetic circuit.The top of magnetic core array 1 offers two to the symmetrical wire lead slot for drawing coil.Be provided with the electrode for soldered circuit board near wire lead slot place bottom magnetic core array 1.5, a clipped corner of magnetic core array 1 forms the polygon with corner cut, and cut-out mainly may be used for distinguishing magnetic core direction, and two pairs of wire lead slots are opened on the symmetrical edge of magnetic core array 1.
Embodiment 4:
See accompanying drawing 6, the novel magnetic core of the present embodiment comprises the magnetic core array 1 with cup-like structure, the cross section be provided with in the center of magnetic core array 1 for coil is around the home circular newel, and newel endface position is provided with groove location hole, for the spacing fixing use of magnetic cap.Magnetic cap 5 center is provided with taper platform, for fixed magnetic core newel position, plays the effect of shielding closed magnetic circuit.The top of magnetic core array 1 offers a pair symmetrical wire lead slot for drawing coil.Be provided with the electrode for soldered circuit board near wire lead slot place bottom magnetic core array 1.Magnetic core array 1 excises symmetrical two parts and forms the circle with trimming, cut-out mainly may be used for distinguishing magnetic core direction, and pair of lead wires groove is opened on the curved edge of magnetic core array 1.
Embodiment 5:
See accompanying drawing 7, the novel magnetic core of the present embodiment comprises the magnetic core array 1 with two cup-shaped (bimodulus) structure, in magnetic core array 1, be provided with symmetrical two cross sections for coil is around the home circular newel, newel endface position is provided with groove location hole, for the spacing fixing use of magnetic cap.Magnetic cap 5 center is provided with taper platform, for fixed magnetic core newel position, plays the effect of shielding closed magnetic circuit.The top of magnetic core array 1 offers a pair symmetrical wire lead slot for drawing coil.Be provided with the electrode for soldered circuit board near wire lead slot place bottom magnetic core array 1.Electrode surface is silver-plated, can directly scolding tin and attachment, realizes surface mounting components; Magnetic core array 1 excises symmetrical two parts and forms the polygon with trimming, cut-out mainly may be used for distinguishing magnetic core direction, and pair of lead wires groove opens the trimming adjacency at magnetic core array 1.
This programme only needs one-shot forming just can make, and without the need to cutting processing, saves manufacturing procedure, reduces costs and avoid dust pollution, make it more cost-effective and avoid dust pollution; In assembling process, more convenient convenient location simultaneously, can be easy to realize automatic assembling, enhance productivity and save labour turnover.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to right.
Claims (5)
1. a high-accuracy one-body molded soft magnetic core, it is characterized in that: it comprises the magnetic core array (1) with cup-like structure, the center of described magnetic core array (1) convexes to form the newel (2) of coil around the home, newel (2) top is concordant with magnetic core array (1) rim of a cup, newel (2) endface position is provided with groove location hole (3), magnetic cap (5) center is set to taper platform, and is assemblied on the groove location hole (3) of newel (2) end by this taper platform; The shape of cross section of described newel (2) is circular or oval; The rim of a cup endface position of magnetic core array (1) offers the wire lead slot (4) for drawing coil that at least one pair of is symmetrical.
2. an inductance preparation method for high-accuracy one-body molded soft magnetic core, is characterized in that: it includes following steps:
1), be made into one soft magnetic core, makes spring coil, for subsequent use;
2), by mounting coil on the newel of magnetic core, coil pin is made to be placed in wire lead slot;
3), by magnetic cap be fastened on newel groove location hole.
3. the high-accuracy one-body molded soft magnetic core of one according to claim 1, is characterized in that: the shape of cross section of described magnetic core array (1) is polygon or the polygon with corner cut.
4. the high-accuracy one-body molded soft magnetic core of one according to claim 1, is characterized in that: the shape of cross section of described magnetic core array (1) is circular or has the circle of trimming.
5. the high-accuracy one-body molded soft magnetic core of one according to claim 1, is characterized in that: described magnetic core array is two mode field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410548246.2A CN104269252A (en) | 2014-10-17 | 2014-10-17 | High-precision all-in-one soft magnetic core |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410548246.2A CN104269252A (en) | 2014-10-17 | 2014-10-17 | High-precision all-in-one soft magnetic core |
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| CN104269252A true CN104269252A (en) | 2015-01-07 |
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| CN201410548246.2A Pending CN104269252A (en) | 2014-10-17 | 2014-10-17 | High-precision all-in-one soft magnetic core |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021043343A3 (en) * | 2020-11-17 | 2021-09-30 | 深圳顺络电子股份有限公司 | Integrally formed inductor and manufacturing method therefor |
| CN113990632A (en) * | 2021-12-24 | 2022-01-28 | 江苏东方四通科技股份有限公司 | Shielding shell and framework structure and transformer with shielding shell and framework structure |
| US12148564B2 (en) | 2021-05-18 | 2024-11-19 | Shenzhen Sunlord Electronics Co., Ltd. | Manufacturing method of an integrally formed inductor |
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| CN2496208Y (en) * | 2001-09-04 | 2002-06-19 | 弘隆工业股份有限公司 | Loudspeaker iron core with copper lid formed indent peritreme by riveting |
| JP2006286658A (en) * | 2005-03-31 | 2006-10-19 | Hitachi Ferrite Electronics Ltd | Coil component using composite core |
| CN202230820U (en) * | 2011-07-26 | 2012-05-23 | 南京恒创磁电科技有限公司 | Round jar-shaped magnetic core with cover |
| CN202996519U (en) * | 2013-01-10 | 2013-06-12 | 湖南创一电子科技有限公司 | Novel magnetic core |
| CN203721458U (en) * | 2013-12-31 | 2014-07-16 | 黄贵堂 | High-frequency transformer |
| CN203760267U (en) * | 2014-03-11 | 2014-08-06 | 湖南创一电子科技有限公司 | Novel dual-mold magnetic core |
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2014
- 2014-10-17 CN CN201410548246.2A patent/CN104269252A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2496208Y (en) * | 2001-09-04 | 2002-06-19 | 弘隆工业股份有限公司 | Loudspeaker iron core with copper lid formed indent peritreme by riveting |
| JP2006286658A (en) * | 2005-03-31 | 2006-10-19 | Hitachi Ferrite Electronics Ltd | Coil component using composite core |
| CN202230820U (en) * | 2011-07-26 | 2012-05-23 | 南京恒创磁电科技有限公司 | Round jar-shaped magnetic core with cover |
| CN202996519U (en) * | 2013-01-10 | 2013-06-12 | 湖南创一电子科技有限公司 | Novel magnetic core |
| CN203721458U (en) * | 2013-12-31 | 2014-07-16 | 黄贵堂 | High-frequency transformer |
| CN203760267U (en) * | 2014-03-11 | 2014-08-06 | 湖南创一电子科技有限公司 | Novel dual-mold magnetic core |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021043343A3 (en) * | 2020-11-17 | 2021-09-30 | 深圳顺络电子股份有限公司 | Integrally formed inductor and manufacturing method therefor |
| US12148564B2 (en) | 2021-05-18 | 2024-11-19 | Shenzhen Sunlord Electronics Co., Ltd. | Manufacturing method of an integrally formed inductor |
| CN113990632A (en) * | 2021-12-24 | 2022-01-28 | 江苏东方四通科技股份有限公司 | Shielding shell and framework structure and transformer with shielding shell and framework structure |
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Application publication date: 20150107 |