KR101525156B1 - Bobbin for trans having a insulation structure - Google Patents

Bobbin for trans having a insulation structure Download PDF

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Publication number
KR101525156B1
KR101525156B1 KR1020140013919A KR20140013919A KR101525156B1 KR 101525156 B1 KR101525156 B1 KR 101525156B1 KR 1020140013919 A KR1020140013919 A KR 1020140013919A KR 20140013919 A KR20140013919 A KR 20140013919A KR 101525156 B1 KR101525156 B1 KR 101525156B1
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KR
South Korea
Prior art keywords
coil
bobbin
insulation
end flange
coil winding
Prior art date
Application number
KR1020140013919A
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Korean (ko)
Inventor
박해광
Original Assignee
(주) 성진일렉트론
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Publication date
Application filed by (주) 성진일렉트론 filed Critical (주) 성진일렉트론
Priority to KR1020140013919A priority Critical patent/KR101525156B1/en
Application granted granted Critical
Publication of KR101525156B1 publication Critical patent/KR101525156B1/en

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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
    • H01F27/324—Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/325—Coil bobbins

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulating Of Coils (AREA)
  • Coils Of Transformers For General Uses (AREA)

Abstract

In the configuration of a bobbin for trans having an insulating structure according to the present invention, it includes a coil winding part which forms a space for stacking a coil for trans and allows a ferrite core to penetrate in a center axis direction; a bobbin flange part which is formed at both ends of the coil winding part, maintains insulation between the coil winding parts, and has a connection pin which connects the start wire of the coil for trans to a finish wire and is electrically connected to an external device; and an end flange part which is formed at both ends of the bobbin for trans and prevents dielectric breakdown due to the contact between the coil wire and the ferrite core.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bobbin for trans-

[0001] The present invention relates to a structure of a transformer bobbin having an insulation structure, and in a structure of a transformer bobbin for coupling with a ferrite core, a start of a coil winding winding for transformer is connected with a wiring pin and a soldering operation, And the problem of insulation breakdown between the coils generated by the transfer of the deterioration phenomenon caused by the southern soldering to the coating of the coil of the final winding, which is laminated with the windings, is solved.

Generally, the coil winding for the transformer is moved along the bobbin wall from the start pin of the winding, and the winding operation is started at the bottom surface of the bobbin. As the winding operation progresses, the coil winding forms a layer, forming a winding layer of the coil while reciprocating left and right between both walls of the bobbin, and winding layers of the coil are laminated.

At this time, when the coil winding layer stacked from the lower coil winding layer of the bobbin winding axis reaches the last coil winding layer, the coil of the start winding wire and the coil of each of the stacked coil winding layers come into contact with each other. When power is applied to the transformer, the potential difference at the contact point between the start winding and the last coil winding is the point at which the potential difference is the largest among the contact potential differences of the respective winding layers.

On the other hand, during the soldering operation of the start winding during the assembling work of the transformer, the heat of the solder is transferred to the coil along the coil at the soldering portion of the final winding, and the coil coating is deteriorated. Such deterioration of the coating is caused by the heat transfer to the contact portion between the start winding and the final winding coil, thereby causing a deterioration phenomenon in the coil coating of the start winding and the coil layer contact portion of each winding layer.

The inductance value is measured without any abnormality in the characteristic inspection of the transformer measured by the LCR meter. However, if a high frequency voltage / current flows through the transformer, the circuit deterioration due to the insulation breakdown between the coils Which causes problems in reliability.

It is an object of the present invention to provide a bobbin for a transformer which is coupled with a ferrite core and which is produced by soldering a start winding wire pin after winding a coil for transformer And more particularly to a bobbin structure for a transformer which eliminates the problem of insulation breakdown between coils caused by a deterioration phenomenon due to soldering heat which is transmitted to the contact coil coating of the start winding and the laminated winding layers.

According to an aspect of the present invention, there is provided a bobbin for a transformer, comprising: a coil winding part forming a predetermined space in which a transformer coil is wound and laminated, the ferrite core passing through the transformer coil in a center axis direction; A bobbin provided at both ends of the coil winding portion and holding insulation between the coil winding portions and connected to a start winding and a finishing winding of the transformer coil and electrically connected to external elements, A flange portion; And an end flange provided at both ends of the bobbin for preventing the insulation breakdown due to contact between the coil winding and the ferrite core.

The bobbin flange portion includes at least one flange portion which is engaged with the end flange portion and has two or more insulation protrusions formed at one side thereof to form a distance from the end flange portion, And an insulating flange interposed between the coil windings to provide insulation between the coil windings.

The two end flange portions are provided at one side with two or more insulation protrusions protruded to provide a predetermined insulation space with the end flange portion and at least two wiring pins are provided in a direction perpendicular to the coil winding portion, And a coil guide groove formed between the connection pins so that the coil can pass through the coil winding part.

On the other hand, in the insulating flange portion, there are provided a coil guide portion having two or more wiring pins in a direction perpendicular to the coil winding portion and having inclined portions downward in the center direction between the respective wiring pins, A coil guiding groove through which the coil passes through the coil winding part and an insulating partition wall for preventing the insulation breakdown due to the contact between the coil guiding part and the coil winding part.

The end flange portion is provided at one side of the both-end flange portion and is in contact with the end portion of the insulation protrusion portion to form a space for insulation, thereby preventing insulation between the coil and the ferrite core .

Meanwhile, the coil connected to the connection pin provided at the both-end flange portion is fixed to the insulation protrusion and is wound on the outer side of the coil winding portion through the coil guide groove and laminated.

By adopting the structure of the transformer bobbin according to the embodiment of the present invention, it is possible to remove the portion where the coil of the transformer bobbin can directly contact the ferrite core, and to transfer the soldering heat generated in the soldering process for connecting the coil to the wiring pin It is possible to eliminate a minute dielectric breakdown phenomenon due to the deterioration phenomenon due to the presence of the dielectric layer.

1 is an exploded perspective view showing a configuration of a transformer bobbin having an insulation structure according to an embodiment of the present invention.
2 is a cross-sectional view showing the construction of a transformer bobbin having an insulation structure according to an embodiment of the present invention.
3 is a cross-sectional view showing a configuration of an insulation flange portion of a transformer bobbin having an insulation structure according to an embodiment of the present invention.
FIG. 4 is a cross-sectional view showing the construction of a transformer bobbin having an insulation structure according to an embodiment of the present invention.
5 is a perspective view showing a coupled state of a transformer bobbin having an insulation structure according to an embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. However, it should be understood that the spirit of the present invention is not limited to the embodiment shown, and other embodiments included in the scope of the invention or the scope of the present invention can easily be proposed by adding, changing or deleting other elements .

1 is an exploded perspective view showing a configuration of a transformable bobbin 10 having an insulation structure according to an embodiment of the present invention.

2 is a cross-sectional view showing a configuration of a transformer bobbin 10 having an insulation structure according to an embodiment of the present invention.

3 is a cross-sectional view showing the configuration of an insulating flange portion 220 of a bobbin for a transformer 10 having an insulating structure according to an embodiment of the present invention.

In the structure of the transformer bobbin 10 according to the embodiment of the present invention, a coil winding portion 100 (see FIG. 1) in which a predetermined space is formed in which the transformer coil is wound and laminated, )Wow; The start winding and the finishing winding of the transformer coils are connected to each other and are electrically connected to the external elements, respectively, provided at both ends of the coil winding part 100 and maintaining the insulation between the coil windings 100. [ A bobbin flange portion 200 provided with connection pins 211 and 221; And an end flange 300 provided at both ends of the bobbin 10 for preventing insulation breakdown due to contact between the coil winding and the ferrite core 400.

The bobbin flange unit 200 includes a bobbin flange unit 200 and a bobbin flange unit 300. The bobbin flange unit 200 includes a bobbin flange part 300 and a bobbin flange part 300. The bobbin flange part 200 includes a bobbin flange part 300, And an insulating flange part 220 interposed between the coil windings 100 to provide insulation between the coil windings, at least one of which is provided between the flange part 210 and the both-end flange part 210 .

The two end flange portions 210 are provided at one side with two or more insulation protrusions 212 protruding from the end flange portion 300 to provide a predetermined insulation space, Two or more wire fins 211 and 221 are provided in the direction orthogonal to each other and coil guide grooves 213 and 223 are formed between the wire fins 211 and 221 so that the coil can pass through the coil winding part 100 side.

The insulation flange portion 220 is provided with at least two connection pins 211 and 221 in a direction perpendicular to the coil winding portion 100 and includes an inclined portion that is downward in the center direction between the connection pins 211 and 221 Coil guiding grooves 213 and 223 through which the coil passes to the coil winding part 100 and coil guiding parts 222 and 222 where the coil guiding part 222 and the coil guiding part 222 are in contact with each other, And an insulating partition wall 224 between the coil winding part 100 to prevent dielectric breakdown due to contact.

The end flange portion 300 is provided on one side of the both end flange portions and is in contact with and joined to an end portion of the insulation protrusion portion 212 to form a space for insulation. The coil and the ferrite core 400 So as to ensure insulation.

The coil connected to the connection pins 211 and 221 provided in the both-end flange portion 210 is fixed to the insulation protrusion 212 and passes through the coil guide groove to be wound on the outer side of the coil winding portion 100. [ And then laminated.

In detail, the end flange portion 300 is provided with a core through-hole 301 through which the ferrite core 400 penetrates and is fixedly coupled to the end flange portion 300, A wall 302 is provided.

The end flange portion 300 is coupled to the both-end flange portion 210. The engaging portion 303 of the end flange portion 300 is inserted into the core through holes 215 and 301 formed in the both end flange portions 210 and inserted into the insulator protrusion 212 ) To the point of contact.

The bobbin flange unit 200 includes a bobbin flange unit 200 and a bobbin flange unit 300. The bobbin flange unit 200 includes a bobbin flange part 300 and a bobbin flange part 300. The bobbin flange part 200 includes a bobbin flange part 300, And an insulating flange part 220 interposed between the coil winders 100 and providing insulation between the coil windings. The insulating flange part 220 is provided between the coil spindle part 210 and the end flange part 210.

The end flange portion 210 is provided at one side with two or more insulating protrusions 212 protruding to provide a predetermined insulation space with the end flange portion 300, And the coil guiding grooves 213 and 223 are formed between the wiring pins 211 and 221 so that the coils can pass through the coil winding part 100 side.

The insulating flange 220 is provided with two or more connection pins 211 and 221 in a direction orthogonal to the coil winding part 100 and a sloped part that is downward in the center direction between the connection pins 211 and 221 Coil guiding grooves 213 and 223 through which the coil passes to the coil winding part 100 and coil guiding parts 222 and 222 where the coil guiding part 222 and the coil guiding part 222 are in contact with each other, Between the coil winding part 100, there is provided an insulating partition wall 224 for preventing dielectric breakdown due to contact.

4 is a cross-sectional view showing a configuration of a transformer bobbin 10 having an insulation structure according to an embodiment of the present invention.

FIG. 5 is a perspective view showing a coupled state of a bobbin for a transformer 10 having an insulation structure according to an embodiment of the present invention.

In the structure of the transformer bobbin 10 according to the embodiment of the present invention, the coil winding portion in which the ferrite core 400 passes through in the center axis direction forms a predetermined space in which the transformer coil is wound and laminated, (100) having a coil winding part (100) and a coil winding part (100) which are provided at both ends of the coil winding part (100) A bobbin flange portion 200 provided with connection pins 211 and 221 electrically connected to the transformer bobbin 10 and a bobbin flange portion 200 provided at both ends of the transformer bobbin 10 to prevent dielectric breakdown due to contact between the coil winding and the ferrite core 400 And a ferrite core 400 for forming a magnetic field in the passage is provided at the outer side of the bobbin for a transformer 10 having the insulating structure according to the embodiment of the present invention do.

Through the above-described structure, it is possible to remove the portion of the coil of the transformer bobbin 10 that can directly contact the ferrite core 400 and remove the solder generated in the soldering process for connecting the coils to the wiring pins 211 and 221 The coil coating deterioration phenomenon of the start coil and the coil coil contact portions of the stacked layers due to the transfer of heat is prevented by the insulation protrusion 212 and the coil guide grooves 213 and 223 and the insulating partition wall 224, It is possible to prevent the structural contact between the winding layers and to prevent the fine insulation breakdown between the wound coils.

In summary, in the structure of the transformer bobbin 10 according to the embodiment of the present invention, a coil winding portion (a coil winding portion) in which a predetermined space in which the transformer coil is wound and laminated is formed and the ferrite core 400 passes through in the center axis direction And a transformer coil provided at both ends of the coil winding unit and maintaining insulation between the coil windings and connected to a start winding and a finishing winding of the transformer coil, And a bobbin flange portion 200 provided at both ends of the bobbin for transformer 10 to prevent dielectric breakdown due to contact between the coil winding and the ferrite core 400. [ And an end flange portion 300 which is formed of a metal plate.

Description of reference numerals
10. Transformer bobbin with insulation structure 100. Coil winding part
200. Bobbin flange portion 210. Both flange portion
211. Connection pin 212. Insulation protrusion
213. Coil guide groove 220. Insulation flange portion
221. Connection pin 222. Coil guide portion
223. Coil guide groove 224. Isolation barrier
300. End flange part 400. Ferrite core
215. Core through hole 301. Core through hole
302. Insulation wall 303. Coupling portion

Claims (6)

In the structure of the transformable bobbin,
A coil winding part forming a predetermined space in which a coil for a transformer is wound and laminated, the ferrite core passing through in a central axis direction;
A bobbin provided at both ends of the coil winding portion and holding insulation between the coil winding portions and connected to a start winding and a finishing winding of the transformer coil and electrically connected to external elements, A flange portion;
And an end flange provided at both ends of the transformer bobbin to prevent dielectric breakdown due to contact between the coil winding and the ferrite core.
The method according to claim 1,
The bobbin flange portion
End flange portions which are respectively engaged with the end flange portions and formed on one side thereof with two or more insulation protrusions for forming a distance from the end flange portion,
And at least one insulating flange portion provided between the both end flange portions and interposed between the coil winding portions to provide insulation between the coil windings.
3. The method of claim 2,
In the both-end flange portion,
And at least one insulating protrusion formed on one side of the end flange so as to protrude to provide a predetermined insulation space,
Wherein at least two wiring pins are provided in a direction orthogonal to the coil winding portion,
Wherein a coil guide groove is formed between the connection pins so that the coil can pass through the coil winding portion.
3. The method of claim 2,
In the insulating flange portion,
Wherein at least two wiring pins are provided in a direction orthogonal to the coil winding portion,
A coil guide portion having a sloping portion downward in the center direction between each of the wiring pins,
A coil guiding groove through which the coil passes to the coil winding portion;
Wherein the coil guiding part and the coil winding part are constituted by an insulating partition wall for preventing an insulation breakdown due to contact.
3. The method of claim 2,
The end flange portion
And an insulating structure is provided on one side of the both end flange portions to form a space for insulation by being in contact with the end portions of the insulating protrusions to prevent contact between the coils and the ferrite core to secure insulation. One trans bobbin.
5. The method of claim 4,
Wherein the coil connected to the connection pin provided at the both-end flange portion is fixed to the insulation protrusion and is wound on the outer side of the coil winding portion through the coil guide groove and stacked. .

KR1020140013919A 2014-02-07 2014-02-07 Bobbin for trans having a insulation structure KR101525156B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140013919A KR101525156B1 (en) 2014-02-07 2014-02-07 Bobbin for trans having a insulation structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140013919A KR101525156B1 (en) 2014-02-07 2014-02-07 Bobbin for trans having a insulation structure

Publications (1)

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KR101525156B1 true KR101525156B1 (en) 2015-06-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101643500B1 (en) * 2015-06-17 2016-07-27 세기전자산업 (주) Bobbin for a transformer having a variable function

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000252141A (en) * 1999-03-04 2000-09-14 Nec Home Electronics Ltd Transformer
KR20070111996A (en) * 2006-05-18 2007-11-22 스미다 코포레이션 Balance transformer
KR20090099958A (en) * 2008-03-19 2009-09-23 주식회사 다성마그네틱 Inverter transformer
KR20130081381A (en) * 2012-01-09 2013-07-17 삼성전기주식회사 Transformer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000252141A (en) * 1999-03-04 2000-09-14 Nec Home Electronics Ltd Transformer
KR20070111996A (en) * 2006-05-18 2007-11-22 스미다 코포레이션 Balance transformer
KR20090099958A (en) * 2008-03-19 2009-09-23 주식회사 다성마그네틱 Inverter transformer
KR20130081381A (en) * 2012-01-09 2013-07-17 삼성전기주식회사 Transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101643500B1 (en) * 2015-06-17 2016-07-27 세기전자산업 (주) Bobbin for a transformer having a variable function

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