KR101806443B1 - Inductor And Method Of Fabricating The Same - Google Patents
Inductor And Method Of Fabricating The Same Download PDFInfo
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- KR101806443B1 KR101806443B1 KR1020160025823A KR20160025823A KR101806443B1 KR 101806443 B1 KR101806443 B1 KR 101806443B1 KR 1020160025823 A KR1020160025823 A KR 1020160025823A KR 20160025823 A KR20160025823 A KR 20160025823A KR 101806443 B1 KR101806443 B1 KR 101806443B1
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- core
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- assembled
- base
- terminal pins
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/32—Insulating of coils, windings, or parts thereof
- H01F27/327—Encapsulating or impregnating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
- H01F27/022—Encapsulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/33—Arrangements for noise damping
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/005—Impregnating or encapsulating
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/10—Connecting leads to windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/127—Encapsulating or impregnating
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The present invention provides a magnetic resonance imaging apparatus comprising: a first internal core comprising a first core and a first lower base, the first internal core being made of an insulating ferromagnetic material; A first upper base assembled on the upper surface of the first heartbeat and made of an insulating nonmagnetic material; A plurality of first terminal pins assembled on a lower surface of the first lower base; A first wire wound on the first core and having opposite ends connected to the plurality of first terminal pins; And an outer core surrounding the first core, the first upper base, and the first wire and being assembled to the first inner core, the outer core being made of an insulating ferromagnetic material.
Description
The present invention relates to an inductor and, more particularly, to an inductor in which a wire is directly wound on an inner core and a space between an inner core and an outer core is molded with an adhesive to simplify the structure, And a manufacturing method thereof.
Generally, an inductor is a passive element for a winding which is used as a filter for abrupt change of current in an electronic product, an oscillation circuit, a current storage element of a power supply circuit, or the like to filter electric noise. In recent years, The inductors mounted on the surface of the printed circuit board are also becoming smaller.
The conventional inductor is composed of an insulating base to which a terminal pin is assembled, a drum core in which a wire is wound, and a ring core that surrounds the drum core. The drum core is composed of an upper and a lower flange and a heart shape integrally formed with upper and lower flanges do.
In such a conventional inductor, it is necessary to use an insulating base in order to prevent electrical short-circuiting between the terminal pin and the drum core. However, the use of the insulating base increases the complexity of the inductor and increases material cost and manufacturing cost.
Further, there is a problem that the wire is damaged during the process of storing the wound wire or the winding of the wire wound around the drum core, or the wound wire is separated from the drum core and the ring core to generate noise.
SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a method of manufacturing a semiconductor device in which wire is directly wound on an inner core in which an upper base is assembled and a space between an inner core and an outer core is molded with an adhesive, And an object of the present invention is to provide a method of manufacturing the inductor.
The present invention provides an inductor in which the core and the lower base of the inner core are integrally formed of an insulative ferromagnetic material to improve the insulation strength and the terminal pin and the wire are connected at the bottom of the inner core to improve durability and a manufacturing method thereof For other purposes.
In order to solve the above problems, the present invention provides a magnetic resonance imaging apparatus comprising: a first internal core comprising a first core and a first lower base, the first internal core being made of an insulating ferromagnetic material; A first upper base assembled on the upper surface of the first heartbeat and made of an insulating nonmagnetic material; A plurality of first terminal pins assembled on a lower surface of the first lower base; A first wire wound on the first core and having opposite ends connected to the plurality of first terminal pins; And an outer core surrounding the first core, the first upper base, and the first wire and being assembled to the first inner core, the outer core being made of an insulating ferromagnetic material.
In addition, the inductor may further include an adhesive filling a space between the first inner core and the outer core.
In addition, the first inner core and the outer core may be made of Ni-based ferrite, and the first upper base may be made of liquid crystal plastic.
The plurality of first terminal pins may be downwardly attached to the lower surface of the first lower base so as to be disposed inside the first lower base.
A protrusion may be formed at the center of the upper surface of the outer core.
The first lower base includes a recess for guiding the first wire to the plurality of first terminal pins. The first upper base includes an alignment groove, and the outer core has an alignment corresponding to the groove And may include protrusions.
A first gap of the first upper base is larger than a second diameter of the first lower base, and a first gap, which is a left-right gap between the first lower base and the outer core, And the second gap, which is the upper gap between the first core and the outer core, may be determined by the thickness of the first upper base.
The inductor includes a second inner core, which is assembled to the outer core and includes a second core and a second lower base, and is made of an insulating ferromagnetic material; A second upper base assembled on the upper surface of the second heart core and made of an insulating nonmagnetic material; A plurality of second terminal pins assembled to the lower surface of the second lower base; And a second wire wound around the second core wire and having both ends connected to the plurality of second terminal pins, the outer core being connected to the first and second core wires, the first and second upper base , The first and second wires may be wrapped around the first and second inner cores.
According to another aspect of the present invention, there is provided a method of manufacturing a magnetic sensor, comprising: assembling a first upper base made of an insulating nonmagnetic material on a first core of a first inner core made of an insulative ferromagnetic material; Assembling a plurality of first terminal pins on a lower surface of a first lower base of the first inner core; Winding a first wire to the first core and connecting both ends of the first wire to the plurality of first terminal pins; And assembling an outer core made of an insulative ferromagnetic material to the first inner core so as to surround the first core, the first upper base, and the first wire.
The step of assembling the outer core into the first inner core includes the steps of inserting the first inner core into which the first upper base is assembled and the first wire is wound into the outer core; Filling the space between the first inner core and the outer core with an adhesive; And curing the adhesive.
The first upper base and the first crown are assembled through application and curing of an adhesive, and the first terminal pins and the first lower base are assembled through application and curing of an adhesive, The wires and the plurality of first terminal pins may be connected by soldering.
The present invention has the effect of simplifying the structure, preventing wire damage, and reducing noise by directly winding the wire on the inner core with the upper base assembled and molding the inner core with the wire wound on the outer core.
In addition, the present invention has an effect that the core and the lower base of the inner core are integrally formed of an insulative ferromagnetic material to improve the insulation force, and the terminal pin and the wire are connected at the lower portion of the inner core to improve the durability.
1 is a perspective view of an inductor according to a first embodiment of the present invention;
2 is an exploded perspective view of an inductor according to a first embodiment of the present invention;
3 is a cross-sectional view of an inductor according to a first embodiment of the present invention.
4A to 4E illustrate a method of manufacturing an inductor according to a first embodiment of the present invention.
5A and 5B illustrate first and second alignment means of an inductor according to a first embodiment of the present invention.
6 is an exploded perspective view of an inductor according to a second embodiment of the present invention.
Hereinafter, an inductor and a manufacturing method thereof according to the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a perspective view of an inductor according to a first embodiment of the present invention, and FIG. 2 is an exploded perspective view of an inductor according to a first embodiment of the present invention.
1 and 2, the
The plurality of
The plurality of
The
The
The
The plurality of
By thus forming the
The
In the first embodiment, the
The
For example, the
The
As described above, by directly winding the
The
Here, the
The
The
Although not shown, the
The space between the
3 is a cross-sectional view of an inductor according to a first embodiment of the present invention.
3, the
Therefore, the
Here, the distance between the
That is, the
The second gap g2 between the core 32 of the
By controlling the diameter and the thickness of the insulating base nonmagnetic material of the
By forming the projecting
The space between the assembled
4A to 4E are views showing a method of manufacturing the inductor according to the first embodiment of the present invention.
4A, the
The
4B, a plurality of
At this time, the plurality of
The plurality of
4C, the
Therefore, by winding the
Both ends of the
Both ends of the
The
At this time, first and second aligning means may be formed on the
5A and 5B are views showing first and second alignment means of the inductor according to the first embodiment of the present invention.
5A and 5B, a first alignment means 42 such as an alignment groove is formed on one side of the
In this case, when the
Meanwhile, in another embodiment, the plurality of
After the
As described above, by molding the space between the
In another embodiment, two or more internal cores may be assembled in one external core, which will be described with reference to the drawings.
6 is an exploded perspective view of the inductor according to the second embodiment of the present invention, and a description of the same parts as those of the first embodiment will be omitted.
6, the
The plurality of first
The first
The
The
The plurality of first
The
The first and second
The first and second
The first and
Thus, by winding the first and
The
Here, the
The
The
Although not shown, the second protrusions 262 of the upper core 260 may be formed with straight grooves for alignment and heat radiation.
The space between the first and second
As described above, in the
At this time, the first and
In another embodiment, one
As described above, in the inductor according to the embodiment of the present invention, the wire is directly wound on the inner core in which the upper base is assembled, and the inner core in which the wire is wound is molded in the outer core, And the noise is reduced.
By forming the core and the lower base of the inner core integrally with the insulative ferromagnetic material, the insulation ability of the inductor is improved.
In addition, by connecting the terminal pin and the wire under the inner core so that the terminal pin is disposed in the inner core without protruding out of the inner core, the damage of the terminal pin is prevented and the durability of the inductor is improved.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the appended claims. It can be understood that
10: inductor 20: terminal pin
30: inner core 32:
34: lower base 40: upper base
50: wire 60: outer core
Claims (11)
A first upper base assembled on the upper surface of the first heartbeat and made of an insulating nonmagnetic material;
A plurality of first terminal pins assembled on a lower surface of the first lower base;
A first wire wound on the first core and having opposite ends connected to the plurality of first terminal pins;
An outer core made of an insulative ferromagnetic material, which surrounds the first core, the first upper base, and the first wire and is assembled to the first inner core,
Lt; / RTI >
Wherein the first diameter of the first upper base is larger than the second diameter of the first lower base.
A first upper base assembled on the upper surface of the first heartbeat and made of an insulating nonmagnetic material;
A plurality of first terminal pins assembled on a lower surface of the first lower base;
A first wire wound on the first core and having opposite ends connected to the plurality of first terminal pins;
An outer core surrounding the first core, the first upper base, and the first wire and being assembled to the first inner core, the outer core being made of an insulating ferromagnetic material;
An adhesive that fills a space between the first inner core and the outer core
Lt; / RTI >
The lower end of the side wall of the outer core is disposed below the first lower base,
Wherein the adhesive contacts the back surface of the first lower base and the inner surface of the outer core while filling the space between the back surface of the first lower base and the outer core.
Wherein the first inner core and the outer core are made of nickel (Ni) -based ferrite, and the first upper base is made of liquid crystal plastic.
And the plurality of first terminal pins are attached downward on a lower surface of the first lower base so as to be disposed inside the first lower base.
A first upper base assembled on the upper surface of the first heartbeat and made of an insulating nonmagnetic material;
A plurality of first terminal pins assembled on a lower surface of the first lower base;
A first wire wound on the first core and having opposite ends connected to the plurality of first terminal pins;
An outer core made of an insulative ferromagnetic material, which surrounds the first core, the first upper base, and the first wire and is assembled to the first inner core,
Lt; / RTI >
And a protrusion is formed in a central portion of an upper surface of the outer core.
Wherein the first lower base includes a recessed portion for guiding the first wire to the plurality of first terminal pins,
Wherein the first upper base includes an alignment groove, and the outer core includes an alignment protrusion corresponding to the alignment groove.
The first gap being a left-right gap between the first lower base and the outer core is determined as a half of a difference between the first and second diameters,
And the second gap, which is the upper gap between the first core and the outer core, is determined by the thickness of the first upper base.
A second inner core, which is assembled to the outer core and includes a second core and a second lower base, and is made of an insulating ferromagnetic material;
A second upper base assembled on the upper surface of the second heart core and made of an insulating nonmagnetic material;
A plurality of second terminal pins assembled to the lower surface of the second lower base;
A second wire wound around the second core wire and having opposite ends connected to the plurality of second terminal pins,
Further comprising:
Wherein the outer core surrounds the first and second core, the first and second upper base, the first and second wires, and is assembled to the first and second inner cores.
Assembling a plurality of first terminal pins on the lower surface of the first lower base of the first inner core;
Winding a first wire directly to the first core of the first inner core to which the first upper base is coupled and connecting both ends of the first wire to the plurality of first terminal pins;
Assembling an outer core made of an insulative ferromagnetic material to the first inner core so as to surround the first core, the first upper base and the first wire;
Wherein the inductor is made of a metal.
The step of assembling the outer core to the first inner core comprises:
Inserting the first inner core into which the first upper base is assembled and the first wire is wound into the outer core;
Filling the space between the first inner core and the outer core with an adhesive;
Curing the adhesive
Wherein the inductor is made of a metal.
The first upper base and the first core are assembled through application and curing of an adhesive,
The plurality of first terminal pins and the first lower base are assembled through application and curing of an adhesive,
Wherein the first wire and the plurality of first terminal pins are connected through soldering.
Priority Applications (1)
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KR1020160025823A KR101806443B1 (en) | 2016-03-03 | 2016-03-03 | Inductor And Method Of Fabricating The Same |
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KR1020160025823A KR101806443B1 (en) | 2016-03-03 | 2016-03-03 | Inductor And Method Of Fabricating The Same |
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KR20170103267A KR20170103267A (en) | 2017-09-13 |
KR101806443B1 true KR101806443B1 (en) | 2017-12-07 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US10991502B2 (en) | 2017-11-10 | 2021-04-27 | Tci, Llc | Bobbin wound electrical reactor assembly |
KR102458195B1 (en) * | 2020-09-15 | 2022-10-24 | 이강복 | Shielded core implemented in one core mold |
KR102382326B1 (en) * | 2021-10-19 | 2022-04-05 | 금호전자(주) | Inductor structure |
KR102420783B1 (en) * | 2022-03-29 | 2022-07-15 | 금호전자(주) | Inductor structure |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200312344Y1 (en) * | 2003-02-18 | 2003-05-09 | 주식회사 광성전자 | Choke coil |
JP2004311473A (en) * | 2003-04-02 | 2004-11-04 | Jfe Ferrite Corp | Composite inductor |
JP2012079983A (en) | 2010-10-04 | 2012-04-19 | Sumida Corporation | Magnetic element |
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2016
- 2016-03-03 KR KR1020160025823A patent/KR101806443B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200312344Y1 (en) * | 2003-02-18 | 2003-05-09 | 주식회사 광성전자 | Choke coil |
JP2004311473A (en) * | 2003-04-02 | 2004-11-04 | Jfe Ferrite Corp | Composite inductor |
JP2012079983A (en) | 2010-10-04 | 2012-04-19 | Sumida Corporation | Magnetic element |
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