KR20110008874A - Transformer - Google Patents

Abstract

PURPOSE: A transformer is provided to remove a separate insulation member in order to insulate a first and second side by laminating a plurality of first side coils and second side copper plate after insulating and molding the second side copper plate. CONSTITUTION: A bobbin part(120) comprises a bobbin body(121,122) having a uniform length. The bobbin body includes a penetration hole and a coil area. A core part(110) comprises a pair of cores which are combined through the penetration hole of the bobbin part. A coil part(130) comprises a first winding part(131) and a second conductive plate part(132). The coil part comprises a clip part(133) which includes a plurality of clips(133a,133b,133c).

Description

Transformers {TRANSFORMER}

The present invention relates to a transformer. More particularly, the present invention relates to a transformer in which a secondary side copper plate is insulated from a large power transformer, and a plurality of primary windings and a secondary side copper plate are laminated.

Recently, with the development of technology, various electronic devices have been used in home and business environments.

The supply of power is inevitable in the operation of these various electronic devices, and a transformer capable of transforming a voltage level to a set level is indispensable for power supply of the electronic device.

On the other hand, consumers are demanding that the electronic device being used can perform a variety of functions as well as light and small.

In order for an electronic device to perform various functions, higher power must be supplied, and circuits must be integrated to be light and thin.

Transformers employed in electronic devices to satisfy the above-mentioned consumer needs also need to be light and thin in supplying high power.

However, in order to supply high power, the transformer must be able to accommodate high voltage or high current, and for this purpose, the number of windings or the number of windings or the cross-sectional area of the windings must be large, which inevitably causes an increase in volume.

On the other hand, in order to reduce the increase in volume, the windings may be laminated on the transformer, but a separate insulator is used to insulate the primary windings, so that the volume cannot be reduced to satisfy the needs of consumers. have.

SUMMARY OF THE INVENTION In order to solve the above problems, an object of the present invention is to provide a transformer in which a plurality of primary windings and a secondary copper plate are laminated by insulation molding a secondary copper plate in a large power transformer.

In order to achieve the above object, one technical aspect of the present invention has a bobbin body having a predetermined length, the bobbin body has a bobbin portion having a through hole formed in the longitudinal direction and a winding area of a predetermined width, and the bobbin A core portion having a pair of cores coupled through a through hole of a portion, a primary winding portion having at least two primary windings wound around a winding region of the bobbin portion, and a secondary conductive plate portion having at least one secondary conductive plate The at least one secondary conductive plate has a conductive plate body having a predetermined width, and the conductive plate body has an insertion hole into which the bobbin body is inserted and a slit formed from the insertion hole to an outer portion of the conductive plate body. The plate body comprises a coil portion molded with an insulator, the two primary windings electrically passing through the slit of the secondary conductive plate. As to provide a transformer characterized in that the connection.

According to one technical aspect of the present invention, the secondary conductive plate portion includes a plurality of secondary conductive plates, and each of the plurality of secondary conductive plates may include at least two connection portions electrically connected to the secondary conductive plates. Can be.

According to one technical aspect of the present invention, the primary winding portion includes a plurality of primary windings, each of the primary windings of the plurality of primary windings and each of the secondary conductive plates of the plurality of secondary conductive plates alternately sequentially with the bobbin It can be wound on the body or insert the bobbin body.

According to one technical aspect of the present invention, each of the conductive plate bodies of the plurality of secondary conductive plates includes first and second extensions extending outward from the insertion hole with the slits interposed therebetween, The second extension portion may be molded at least partially with the insulator together with the conductive plate body, and the connection portion of the two portions may be an unmolded portion of the first and second extension portions.

According to one technical aspect of the present invention, the two connecting portions are first and second connecting portions, and the first and second connecting portions may have different lengths from each other.

According to one technical aspect of the present invention, the coil portion further includes a clip portion having a plurality of clips, each of the plurality of clips each of the first connection portion and the rear end of the second conductive plate of the front end of the plurality of secondary conductive plates The second connection portion of the secondary conductive plate may be electrically connected.

In order to achieve the above object, another technical aspect of the present invention comprises a core portion having a pair of cores, and at least one secondary conductive plate, wherein the at least one secondary conductive plate has a predetermined width. The conductive plate body has an insertion hole into which the core is inserted and a secondary conductive plate portion having a slit formed from the insertion hole to the outer side of the conductive plate body, and a bobbin body having a predetermined length, and the bobbin body Is formed of an insulator for molding at least a portion of the at least one secondary conductive plate, the bobbin body is formed in the longitudinal direction having a through hole and the winding area of a predetermined width is inserted into the core and the winding of the bobbin portion A primary winding having at least two primary windings wound in an area, the two primary windings being the secondary diagram; Through the slit of the plate to provide a transformer, characterized in that electrically connected to each other.

According to another technical aspect of the present invention, the secondary conductive plate portion includes a plurality of secondary conductive plates, and each of the plurality of secondary conductive plates includes at least two connection portions electrically connected to the secondary conductive plates. can do.

According to another technical aspect of the present invention, the plurality of secondary conductive plates are molded in the bobbin body spaced apart from each other by a predetermined interval, the primary winding portion includes a plurality of primary windings, the winding region is the bobbin body Among the plurality of primary windings, each of the plurality of primary windings may be wound in the winding region.

According to another technical aspect of the present invention, each of the conductive plate bodies of the plurality of secondary conductive plates includes first and second extensions extending outward from the insertion hole with the slits interposed therebetween, And at least a portion of the second extension is molded to the bobbin body, and the connection of the two may be an unmolded portion of the first and second extensions.

According to another technical aspect of the present invention, the two connecting portions may include first and second connecting portions, and the first and second connecting portions may have different lengths from each other.

According to another technical aspect of the present invention, it further comprises a clip portion having a plurality of clips, each of the plurality of clips each of the plurality of secondary conductive plates, the first connection of the secondary conductive plate of the front end and the secondary conductive of the rear end The second connection of the plate can be electrically connected.

According to the present invention, in a high-power transformer, the secondary side copper plate is insulated and laminated to a plurality of primary windings and the secondary side copper plate, thereby eliminating the need for a separate insulating member for insulating the primary side, thereby reducing the volume. This has the effect of providing a transformer.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a configuration diagram schematically showing one embodiment of the present invention.

Referring to FIG. 1, an embodiment 100 of the present invention may include a core part 110, a bobbin part 120, and a coil part 130.

The core part 110 may include a pair of cores 111 and 112 which are electromagnetically coupled through the bobbin part 120.

The bobbin part 120 may include bobbin bodies 121 and 122 having a predetermined length, and the through holes H1 may be formed in the bobbin bodies 121 and 122 into which the cores 111 and 112 may be inserted in the longitudinal direction. In addition, the bobbin bodies 121 and 122 may be provided with winding regions in which coils may be wound.

The coil part 130 may include a primary winding part 131 and a secondary conductive plate part 132.

The primary winding 131 may include a plurality of primary windings 131a, 131b, and 131c respectively wound in the winding regions of the bobbin bodies 121 and 122 and having a preset number of turns.

The secondary conductive plate part 132 is disposed in the winding regions of the bobbin bodies 121 and 122 and forms a winding ratio with the plurality of primary windings 131a, 131b and 131c to transform the level of the input voltage to the plurality of secondary conductive plates 132a. And 132b and 132c, and each of the plurality of secondary conductive plates 132a, 132b, and 132c may be disposed between each primary winding of the plurality of primary windings 131a, 131b, and 131c. Each of the secondary conductive plates 132a, 132b, and 132c may be provided with an insertion hole H2 into which the bobbin bodies 121 and 122 may be inserted. Accordingly, the bobbin bodies 121 and 122 may include the secondary conductive plates 132a, 132b, and 132c. In order to be inserted into the insertion hole (H2) of the first bobbin body 121 and the second bobbin body 122 can be separated, and after the insertion is completed can be combined into one bobbin body (121, 122).

In addition, the plurality of primary windings 131a, 131b, and 131c may be electrically connected to each other by extending the windings through slits provided in the plurality of secondary conductive plates 132a, 132b, and 132c, respectively. The slits of the plates 132a, 132b, and 132c will be described in more detail with reference to FIG. 2.

The coil unit 130 may further include a clip unit 133, and the clip unit 133 may include a plurality of clips 133a, 133b, and 133c, and a plurality of clips 133a, 133b, and 133c. The second conductive plates 132a, 132b, and 132c may be electrically connected to each other.

2 (a) and 2 (b) are schematic diagrams of the secondary conductive plate of the present invention shown in FIG. 1.

Referring to (a) of FIG. 2 together with FIG. 1, the secondary conductive plates 132a, 132b, and 132c employed in the transformer 100 of the present invention may be formed of a conductive plate body Co formed of a conductor such as a copper plate having a predetermined width. It may have a slit (s) formed from the insertion hole (H2) to the outside of the conductive plate body, the extension portion protruding from the insertion hole (H2) to the outside of the conductive plate body with the slit (s) in between (e) may be provided. The conductive plate body Co described above may be molded for inter-secondary insulation when stacked with the primary windings 131a, 131b, and 131c.

Referring to (b) of FIG. 2 together with (a) of FIG. 2, the conductive plate body (Co) may be regarded as being molded (m) with an insulator except a part of the extension part (e). Part of the above-described extension part (e) may be first and second connection parts (c) capable of electrically connecting the secondary conductive plates. Since the lengths of the first and second connection parts c are different from each other, the user can bend manually to electrically connect the secondary conductive plates to each other, and the first connection part of the front secondary conductive plate through the clips 133a, 133b, and 133c. The second connection portion of the second conductive plate and the rear end may be electrically connected.

3 (a), 3 (b) and 3 (c) are front, sectional and top views, respectively, of one embodiment of the present invention shown in FIG.

Referring to (a), (b) and (c) of FIG. 3 together with FIG. 1, the primary windings 131a, 131b, and 131c of the primary winding 131 of one embodiment 100 of the present invention are bobbins. The winding regions of the bodies 111 and 112 are sequentially wound, and the secondary conductive plates 132a, 132b and 132c of the secondary conductive plate part 132 are sequentially inserted into the bobbin bodies 111 and 112, wherein the primary windings 131a and 131b, 131c and the secondary conductive plates 132a, 132b, and 132c are alternately disposed on the bobbin bodies 111 and 112 alternately with each other.

As described above, the primary windings 131a, 131b, and 131c and the secondary conductive plates 132a, 312b, and 132c sequentially disposed on the bobbin bodies 111 and 112 are electrically connected to the primary windings and the secondary conductive plates in order to operate as a stacked transformer. Must be connected.

Accordingly, the primary windings 131a, 131b and 131c may be electrically connected to each other by extending the windings, and the windings extending from the primary winding of the front end may be connected to the rear end through the slit of the second conductive plates 132a, 132b and 132c. It may be electrically connected with the primary winding.

The secondary conductive plates 132a, 132b and 132c may be electrically connected to each other by the first and second connecting portions c, and the clips 133a, 133b and 133c may be connected to the first and second ends of the first conductive plates. The second connection portion of the secondary conductive plate may be electrically connected. Here, (a) of FIG. 3 illustrates a front view of the embodiment 100 in which the core part 110 is not coupled, and the partial cutaway view of FIGS. Is shown.

4 is a configuration diagram schematically showing another embodiment of the present invention.

Referring to FIG. 4, another embodiment 200 of the present invention may include a core part 210 and a bobbin part 220.

Since the core unit 210 performs the same structure and function as the core unit 110 of the first embodiment 100 shown in FIG. 1, a detailed description thereof will be omitted.

The bobbin portion 220 has a through hole H into which the core of the core portion 210 is inserted, similar to the bobbin portion 120 of the first embodiment 100 shown in FIG. 1, and the primary winding is wound. It has a winding area, but the secondary conductive plate is not disposed in the winding area.

5 (a) and 5 (b) are schematic diagrams of the secondary copper plate of the present invention shown in FIG. 4.

Referring to (a) and (b) of FIG. 4 together with FIG. 4, the bobbin part 220 may be formed of one insulator, in which a plurality of secondary conductive plates 232 may be molded together. Each of the plurality of secondary conductive plates 232 may have a conductive plate body Co formed of a conductor such as a copper plate having a predetermined width, and may include a slit s formed from the insertion hole H2 to the outside of the conductive plate body. It may be provided with an extension portion (e) protruding from the insertion hole (H2) to the outside of the conductive plate body with the slit (s) therebetween. Each of the conductive plate bodies Co of the plurality of secondary conductive plates 232 described above may be molded with an insulator forming the bobbin portion 220 as shown in FIG. 5B. Each of the plurality of secondary conductive plates 232 may be spaced apart from each other, and the conductive plate body Co may be molded with an insulator (m) except a part of the extension part e to be integral with the bobbin part 220. can see. Part of the above-described extension part (e) may be first and second connection parts (c) capable of electrically connecting the secondary conductive plates. Since the lengths of the first and second connection parts c are different from each other, the user can bend manually to electrically connect the second conductive plates to each other, and the first connection part of the second and second conductive plates of the front end part and the second end of the rear end part are connected through the clip 233. The second connection portion of the conductive plate may be electrically connected.

6A, 6B, and 6C are front, sectional, and top views, respectively, of another embodiment of the present invention shown in FIG.

Referring to Figures 6 (a), (b) and (c) in conjunction with Figures 4 and 5 (b), the bobbin portion 220 of another embodiment 200 of the present invention is provided with a winding region A plurality of primary windings 231 are wound in the winding region. In this case, the winding region may be located between the plurality of secondary conductive plates 232 included in the bobbin portion 220, and each of the primary windings of the plurality of primary windings 231 may include a plurality of secondary conductive plates 232. The secondary conductive plates may be alternately disposed in the bobbin unit 220, and thus a single stacked transformer may be formed. As shown in FIGS. 1 to 3 (a), (b) and (c), another embodiment 200 of the present invention may likewise include a clip 233 for electrically connecting secondary conductive plates. The primary windings may be electrically connected through the slit s of the secondary conductive plate.

Here, (a) of FIG. 6 shows a front view of the embodiment 200 in which the core part 210 is not coupled, so as to easily distinguish the components, and FIG. 6 (a) and (c) show partial cutaway views. Is shown.

As described above, according to the present invention, in a high power transformer having a high output current level or high output voltage level, the secondary conductive plate may be molded to stack the primary side without a separate insulating member, thereby increasing the volume of the transformer. The safety distance can be satisfied while suppressing.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, but is defined by the claims below, and the configuration of the present invention may be modified in various ways without departing from the technical spirit of the present invention. It will be apparent to those skilled in the art that the present invention may be changed and modified.

1 is a configuration diagram schematically showing one embodiment of the present invention.

2 (a) and 2 (b) are schematic configuration diagrams of the secondary conductive plate of the present invention shown in FIG.

(A), (b) and (c) are front, sectional and top views, respectively, of one embodiment of the present invention shown in FIG.

4 is a configuration diagram schematically showing another embodiment of the present invention.

5 (a) and 5 (b) are schematic configuration diagrams of the secondary copper plate of the present invention shown in FIG.

6 (a), 6 (b) and 6 (c) are front, sectional and top views, respectively, of one embodiment of the present invention shown in FIG.

<Detailed Description of Major Symbols in Drawing>

100,200 ... Transformers

110,210 ... core

111,112,211,212 ... core

120,220 Bobbin

121,122,221,222 ... bobbin body

130,230 ... coil part

131.231 ... Primary winding

131a, 131b, 131c, ... primary winding

132,232 Secondary conductive plate

132a, 132b, 132c ... secondary conductive plate

133,233 Clip

133a, 133b, 133c ... clip

Claims (12)

A bobbin body having a predetermined length, the bobbin body comprising: a bobbin having a through hole formed in a length direction and a winding area having a predetermined width; A core part having a pair of cores coupled through the through-hole of the bobbin part; And A secondary winding having a primary winding having at least two primary windings and a secondary conductive plate having at least one secondary conductive plate wound in a winding region of the bobbin portion, wherein the at least one secondary conductive plate has a conductive plate body having a predetermined width. The conductive plate body has an insertion hole into which the bobbin body is inserted and a slit formed from the insertion hole to an outer portion of the conductive plate body. The conductive plate body includes a coil part molded with an insulator. And the two primary windings are electrically connected to each other through slits of the secondary conductive plate. The method of claim 1, The secondary conductive plate portion includes a plurality of secondary conductive plates, Each of the plurality of secondary conductive plates includes at least two connection parts electrically connected to the secondary conductive plates. The method of claim 2, The primary winding comprises a plurality of primary windings, And each of the primary windings of the plurality of primary windings and each of the secondary conductive plates of the plurality of secondary conductive plates are alternately wound around the bobbin body or inserting the bobbin body. The method of claim 2, Each of the conductive plate bodies of the plurality of secondary conductive plates includes first and second extensions extending outwardly from the insertion hole with the slits interposed therebetween. The first and second extensions are molded at least in part with the insulator together with the conductive plate body. Said two connecting portions are unmolded portions of said first and second extensions. The method of claim 4, wherein The two connecting parts are first and second connecting parts, The first and second connectors are different in length from each other. The method of claim 4, wherein The coil unit further includes a clip unit having a plurality of clips, Each of the plurality of clips electrically connects the first connection portion of the second conductive plate at the front end and the second connection portion of the second conductive plate at the rear end of the plurality of secondary conductive plates. A core part having a pair of cores; At least one secondary conductive plate, wherein the at least one secondary conductive plate has a conductive plate body having a predetermined width, and the conductive plate body has an insertion hole into which the core is inserted and an insertion hole from the insertion hole to an outer portion of the conductive plate body. A secondary conductive plate portion on which a slit is formed; It has a bobbin body having a predetermined length, the bobbin body is made of an insulator for molding at least a portion of the at least one secondary conductive plate, the bobbin body is formed in the longitudinal direction and a predetermined width and the through-hole through which the core is inserted A bobbin portion having a winding region of; And A primary winding having at least two primary windings wound in a winding region of the bobbin portion, And the two primary windings are electrically connected to each other through slits of the secondary conductive plate. The method of claim 7, wherein The secondary conductive plate portion includes a plurality of secondary conductive plates, Each of the plurality of secondary conductive plates includes at least two connection parts electrically connected to the secondary conductive plates. The method of claim 8, The plurality of secondary conductive plates are molded in the bobbin body spaced apart from each other at regular intervals, The primary winding includes a plurality of primary windings, The winding area is provided at the spaced intervals of the bobbin body, And wherein each of said plurality of primary windings is wound in said winding region. 10. The method of claim 9, Each of the conductive plate bodies of the plurality of secondary conductive plates includes first and second extensions extending outwardly from the insertion hole with the slits interposed therebetween. The first and second extensions are molded at least in part into the bobbin body, Said two connecting portions are unmolded portions of said first and second extensions. The method of claim 10, The two connecting portions include first and second connecting portions, The first and second connectors are different in length from each other. The method of claim 10, Further comprising a clip portion having a plurality of clips, Each of the plurality of clips electrically connects the first connection portion of the second conductive plate at the front end and the second connection portion of the second conductive plate at the rear end of the plurality of secondary conductive plates.

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