KR101989172B1 - Flat type transformer - Google Patents

Abstract

The present invention relates to a flat-type transformer which improves assembly between components making up a transformer, markedly reduces the number of assembly processes to increase productivity, has high durability, and can be manufactured to be relatively thin to be realized to be slim. According to the present invention, the flat-type transformer comprises: a base plate member including a pair of coil member seating units formed therein, and a plurality of connection pins on both edges thereof facing each other; a first and a second coil member seated and fixed on the coil member seating units of the base plate member; an upper and a lower shield member arranged on an upper and a lower surface of the base plate member; a shield coupling means to couple the upper and the lower shield member while the base plate member is interposed; an upper core member arranged on an upper portion of the upper shield member; and a lower core member arranged between the base plate member and the lower shield member.

Description

Flat type transformer {FLAT TYPE TRANSFORMER}

The present invention relates to a flat type transformer, and more particularly, to a flat type transformer that improves the assemblability between constituent parts constituting a transformer and significantly reduces the number of assembling steps to increase productivity, has a high durability, And more particularly, to a flat type transformer capable of making a panel type electronic device slimmer.

Various kinds of power sources are required for various electronic devices such as TV (Television), monitor (monitor), PC (personal computer), OA (office automation)

Therefore, such an electronic device generally includes an apparatus for converting an AC power supplied from the outside into a power source necessary for each electronic appliances, and a switching transformer is mainly used.

Generally, a switching transformer converts AC power of 85 ~ 265V to DC power of 3 ~ 30V with high frequency oscillation of 25 ~ 100KHz. Therefore, it is possible to greatly reduce the size of the core and the bobbin as compared with a general transformer that converts an AC power of 85 to 265 V to an AC power of 3 to 30 V by a frequency oscillation of 50 to 60 Hz Low-voltage and low-current DC power sources can be stably supplied to electronic appliances, it is widely used for electronic appliances in recent trends of miniaturization.

FIG. 1 is an exploded perspective view of a conventional transformer, FIG. 2 is a partially exploded perspective view of FIG. 1, and FIG. 3 is an assembled perspective view of FIG.

1 to 3, a conventional transformer 1 according to the related art includes a lower and upper cores 10a and 10b, a primary coil 40, Coils 30a and 30b, and lower and upper brackets 20a and 20b.

Specifically, the center legs 12 and the outer legs 11 are provided on the lower and upper cores 10a and 10b. The primary coil 40 is in the form of a board and is formed with an insertion hole 41 to be inserted into the center leg portion 12 and protrudes to the outside of the lower and upper cores 10a and 10b, An insertion hole 42 into which a pin (not shown) is inserted is formed.

The lower and upper secondary coils 30a and 30b are provided with a conductor wire 31 having an insulation distance from the conductor pattern of the primary coil 40 and surrounded by at least two insulators, And an insulating wire 32. The multiple insulated wires 32 are disposed in a space formed between the center leg 12 and the outer leg 11 of the lower and upper cores 10a and 10b, . ≪ / RTI >

The lower and upper brackets 20a and 20b are formed with insertion holes 21 to be inserted into the center leg portion 12 and bending portions 22 are formed at the front and rear sides of the insertion holes 21, The wires 31 and 32 of the lower and upper secondary coils 30a and 30b are drawn out when the secondary coils 30a and 30b are inserted and assembled into the lower and upper cores 10a and 10b, So that the car coils 30a and 30b are maintained in their assembled state at their original positions.

The lower and upper secondary coils 30a and 30b of the transformer 1 according to the related art constructed as described above are thin and flexible and easily deformed when assembled and lost their original shape. Accordingly, the lower and upper secondary coils 30a and 30b maintain their original shape and are difficult to assemble and can not be fixed accurately in the lower and upper cores 10a and 10b even after assembly, . The lower and upper brackets 20a and 20b may contribute to improvement in assembling performance of the lower and upper secondary coils 30a and 30b due to the structure thereof, It does not contribute much to maintaining posture.

1 and 2, the lower bracket 20a, the lower secondary coil 30a, the primary coil 40, the upper bracket 20a, the upper secondary coil 30a, The upper coil bracket 20b and the upper coil bracket 20b are inserted and installed into the assembled state as shown in FIG. 2 and then the upper core 10b covers the upper portion of the upper bracket 20b, Complete.

As described above, since the transformer 1 according to the related art is assembled in such a manner that all the components are sequentially stacked, the original shapes of the lower and upper secondary coils 30a and 30b It is difficult to assemble all the parts in the original place. Particularly, the upper secondary coil 30b and the upper bracket 20b can not be inserted into the center leg 12 of the lower core 10a as shown in FIG. 2, so that the upper secondary coil 30b And the upper bracket 20b are released from their original positions.

As a result, the assembly of the upper core 10b is not easy, and the assembled transformer 1 is difficult to realize its original performance.

In order to solve this problem, Korean Utility Model Publication No. 20-2018-0000677, as another conventional technology, proposes a transformer (transformer) that can slimize the external appearance of the product to enhance the installation compatibility. However, Since the constituent elements constituting the bobbin part and the fixing part constituting the bobbin part and the fixing part constituting the bobbin part are constituted by dividing into a plurality of parts, the number of the assembling parts is increased and the assemblage property is decreased and the productivity is remarkably reduced. Moreover, .

Korea Public Utility Model Publication 20-2018-0000677 (Published Aug. 2018.) Korean Patent Publication No. 10-2008-0031481 (published on Apr. 8, 2008) Korean Registered Patent No. 10-1851653 (published on Apr. 25, 2014) Korean Registered Patent No. 10-1240865 (Announcement of Mar. 31, 2013)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a flat type transformer having a high durability and capable of improving assemblability between parts, have.

Another object of the present invention is to provide a flat type transformer which can manufacture a panel type electronic device slimly because a transformer can be made relatively thinner.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide an apparatus and method for controlling the same.

According to an aspect of the present invention for achieving the above and other features of the present invention, a base plate member having a pair of coil member seating portions formed on an inner side thereof and a plurality of connection pins provided on opposite side edges thereof; A first coil member and a second coil member that are seated and fixed to each of the coil member seating portions of the base plate member; An upper shield member and a lower shield member provided on upper and lower surfaces of the base plate member; A shield coupling means configured to couple between the upper shield member and the lower shield member with the base plate member interposed therebetween; An upper core member provided on the upper shield member; And a lower core member provided between the base plate member and the lower shield member.

In the present invention, the base plate member may include a plate-shaped portion having a pair of elongated grooves symmetrical to each other; And a plurality of protruding block parts spaced apart from each other at both opposite edges of the plate-shaped part, the plurality of protruding block parts each having the connecting pin.

In the present invention, the plate-shaped portion is formed with a symmetrical line in which the pair of intestines are symmetrical in the longitudinal direction, and an insulating projection wall is formed to protrude to insulate the first coil member from the second coil member Wherein the elongated hole is formed with an elongated protruding wall protruding upward along the elongated hole and the coil member seating portion in which the first and second coil members are seated and fixed by the elongated hole projection wall and the insulated protrusion wall, The passage between the plurality of protruding block portions may form a coil end withdrawal passage of the first and second coil members.

In the present invention, the upper shield member may include a rectangular ring portion having a square penetrating portion at a central portion thereof; An inner and outer soft protrusion wall portion protruding in a direction orthogonal to the outer ring of the rectangular ring portion and the inner ring; A plurality of reinforcing ribs spaced apart from each other in the circumferential direction while connecting the inner and outer sheath walls; And an upper portion of the coil receiving plate formed across the bottom surface side of the square through portion of the rectangular ring portion.

In the present invention, the lower shield member may be formed as a plate-shaped body having bent portions formed by bending the opposite side edges to one side.

According to the present invention, the shield coupling means includes a through hole formed in four corners of the plate-shaped portion of the base plate member; A hook that projects downward from an outer surface of each corner of the rectangular ring portion of the upper shield member and has a hook at an end thereof; And a locking hole formed at each end of the bent portion of the lower shield member.

According to the present invention, the shield coupling means includes a through hole formed in four corners of the plate-shaped portion of the base plate member; A hook that protrudes from four corners of the shield member of one of the upper shield member and the lower shield member and has a hook at an end thereof; And a locking hole formed at four corners of the other shield member of the upper shield member and the lower shield member to fix the locking hook of the locking hook.

In the present invention, the width between the two sheets of the base plate member and the width of the upper portion of the coil receiving plate of the upper shield member are formed to be the same, and the upper core member and the lower core member, And an inner groove portion having a width corresponding to a width between the two sheets of sheets and a width of the upper surface of the coil receiving plate of the upper shield member.

The flat type transformer according to the present invention provides the following effects.

First, the present invention improves the assemblability between components constituting the transformer, and significantly reduces the number of assemblies, thereby increasing the productivity.

Second, the present invention has the effect of facilitating easy assembling and increasing the binding force between constituent parts, thereby achieving high durability.

Third, since the transformer can be made relatively thinner, the panel-type electronic device can be slimly realized.

The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

1 is an exploded perspective view of a transformer according to the prior art.
FIG. 2 is a partially exploded perspective view of FIG. 1. FIG.
3 is a perspective view showing the assembled state of Fig.
4 is a perspective view of a flat type transformer according to one embodiment of the present invention.
5 is an exploded perspective view of a flat type transformer according to the present invention.
6 is a perspective view of a base plate member constituting a flat type transformer according to the present invention, viewed from one side.
7 is a plan view showing a base plate member constituting a flat type transformer according to the present invention.
8 is a perspective view of the upper cap member constituting the flat type transformer according to the present invention viewed from one side.
9 is a front view showing an upper shield member constituting a flat type transformer according to the present invention.
10 is a perspective view of a lower shield member constituting a flat type transformer according to an embodiment of the present invention.

Further objects, features and advantages of the present invention will become more apparent from the following detailed description and the accompanying drawings.

Before describing the present invention in detail, it is to be understood that the present invention is capable of various modifications and various embodiments, and the examples described below and illustrated in the drawings are intended to limit the invention to specific embodiments It is to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Also, the terms " part, "" unit," " module, "and the like, which are described in the specification, refer to a unit for processing at least one function or operation, Software. ≪ / RTI >

In the following description of the present invention with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the reference numerals, and redundant explanations thereof will be omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, a flat type transformer according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 4 is a perspective view of a flat type transformer according to the present invention viewed from one side, FIG. 5 is an exploded perspective view of a flat type transformer according to the present invention, 7 is a plan view showing a base plate member constituting a flat type transformer according to the present invention. FIG. 8 is a perspective view of an upper cap member constituting a flat type transformer according to the present invention, FIG. 9 is a front view showing an upper shield member constituting a flat type transformer according to the present invention, and FIG. Is a perspective view of a lower shield member constituting a flat type transformer according to one embodiment of the present invention.

4 to 10, a flat type transformer according to the present invention includes a coil member seating portion 110 in which a pair of coil members are seated thereon, and a plurality of connecting pins (100) having a base plate (120); A pair of coil members (not shown) that are seated and fixed to the coil member seating portion 110 of the base plate member 100; An upper shield member 210 and a lower shield member 220 provided on upper and lower surfaces of the base plate member 100; A shield coupling means configured to couple between the upper shield member 210 and the lower shield member 220 through the base plate member 100; An upper core member 310 provided on the upper shield member 210; And a lower core member 320 provided between the base plate member 100 and the lower shield member 220.

The base plate member 100 includes a plate-shaped portion 101 having a predetermined size and formed with a pair of slots 111 symmetrical to each other, And includes a plurality of protruding block portions 102.

A pair of elongated recesses 111 are formed along the symmetrical line symmetrical in the longitudinal direction on the plate portion 101 to form a pair of coil members, that is, protrusions (not shown) for insulating between the primary coil member and the secondary coil member An insulating projection wall 103 is formed. And a slot projection wall 104 protruding upward along each of the sheets 111 is formed.

Thus, the coil member seating portion 110, in which the coil member is seated and fixed by the elongated hole projection wall 104 and the insulating projection wall 103, is formed.

Further, the plurality of protruding block parts 102 are each formed with a connecting pin 120, so that the ends of the pair of coil members are connected.

Here, between the plurality of protruding block portions 102, a coil end draw-out passage is formed and drawn out through the coil end draw-out passage, thereby reliably isolating the draw-out lines.

8, the upper shield member 210 includes a rectangular ring-shaped portion 211 having a square penetrating portion 201 at a central portion thereof, a rectangular ring- And a plurality of reinforcing ribs 213 spaced apart in the circumferential direction from each other while connecting the inner and outer soft protruded wall portions 212 and the inner and outer soft protruded wall portions 212, And a coil seating plate upper part 214 formed across the bottom surface side of the square penetrating part 201 of the rectangular ring part 211.

The upper shield member 210 is formed in a rigid structure and insulates the upper side of the base plate member 100 on which the coil members (primary and secondary coil members) are seated.

Subsequently, the lower shield member 220 may be formed of a plate-shaped body having bent portions 221 whose upper and lower opposite edges are bent as shown in FIG.

The shield engaging means includes a through hole 410 formed at four corners of the base plate member 100, that is, four corners of the plate-shaped portion 101 of the base plate member 100, A hooking hook 420 protruding from four corners of the shield member of one of the shield member 210 and the lower shield member 220 and having an engaging step 421 formed at an end thereof, And a catching hole 430 formed at each of four corners of the shielding member 220 of the shielding member 220 for catching and fixing the catching hook 421 of the catching hook 420.

The hooking hook 420 is formed to protrude downward from the outer surface of each corner of the rectangular ring portion 211 of the upper shield member 210 and the hooking hole 430 is bent And is formed at each end of the portion 221.

The through hole 410 of the base plate member 100, the engaging hook 420, and the engaging hole 430 may have a rectangular cross section.

Such a shield engaging means can securely fix the upper shield member 210 and the lower shield member 220 to each other only by simple binding assembly between the two shield members 210 and 220 in a state in which the base plate member 100 is interposed therebetween And the base plate member 100 is firmly and stably interposed between the two shield members 210 and 220. [

The upper core member 310 and the lower core member 320 are formed as a block body having a groove 301 formed on an inner side thereof and are preferably formed in a shape of a size of a square penetration portion 201 of the upper shield member 210, As shown in FIG.

At this time, it is preferable that the groove 301 inside the upper core member 310 is formed corresponding to the size and shape of the upper part 214 of the coil seating plate of the upper shield member 210. The inner groove 301 of the lower core member 320 may be formed to correspond to the width of the two sheets 111 of the base plate member 100.

In other words, the width between the two sheets 111 of the base plate member 100 and the width of the upper portion 214 of the coil seating plate 210 of the upper shield member 210 are the same, 320 are formed to have a width corresponding to the width between the two sheets 111 of the base plate member 100 and the width of the upper portion 214 of the coil seating plate 210 of the upper shield member 210, .

The upper core member 310 and the lower core member 320 are stably and firmly fixed to the base plate member 100 and the upper shield member 210, respectively.

The upper core member 310 may be seated on the quadrangular penetration portion 210 on the coil seating plate upper portion 214 of the upper shield member 210 and may be more stably fixed with epoxy or the like.

According to the flat type transformer of the present invention as described above, it is possible to improve the assembling property between the constituent parts constituting the transformer and to significantly reduce the number of assembling steps, thereby increasing the productivity. It is possible to increase the bonding force to have high durability and to make the transformer relatively thinner, which is advantageous in that the panel-type electronic device can be slimly realized.

While the present invention has been particularly shown and described with reference to certain embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

The embodiments and the accompanying drawings described in the present specification are merely illustrative of some of the technical ideas included in the present invention. Therefore, it is to be understood that the embodiments disclosed herein are not for purposes of limiting the technical idea of the present invention, but rather are not intended to limit the scope of the technical idea of the present invention. It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: Base plate member
101:
102: protruding block part
103: insulated protrusion wall
104: long wall protruding wall
110: coil member seat part
111: Chapter Study
120: connecting pin
201: square penetration part
210: upper shield member
211: square ring portion
212: inner and outer projecting wall portion
213: reinforcing rib portion
214: Coil seating plate top
220: Lower shield member
221: bent portion
310: upper core member
320: Lower core member
410: Through hole
420: Retaining hook
421:
430:

Claims (8)

A base plate member having a pair of coil member seating portions formed on an inner side thereof and having a plurality of connecting pins on opposite side edges thereof;
A first coil member and a second coil member that are seated and fixed to each of the coil member seating portions of the base plate member;
An upper shield member and a lower shield member provided on upper and lower surfaces of the base plate member;
A shield coupling means configured to couple between the upper shield member and the lower shield member with the base plate member interposed therebetween;
An upper core member provided on the upper shield member; And
And a lower core member provided between the base plate member and the lower shield member
Flat type transformer.
The method according to claim 1,
The base plate member
A plate-like portion in which a pair of slots are formed symmetrically; And
And a plurality of protruding block portions spaced apart from each other at opposite edges of the plate portion and each having the connection pin,
Flat type transformer.
3. The method of claim 2,
And an insulating protrusion wall protruding from the first coil member and the second coil member to insulate the first coil member and the second coil member is formed on the plate-shaped portion along a symmetrical line symmetrical to the longitudinal direction, A protruding wall protruding upward along the longitudinal direction is formed,
Wherein the coil member seating portion, on which the first and second coil members are seated and fixed by the elongated hole projection wall and the insulating projection wall,
And a passage between the plurality of protruding block portions forms a coil end draw-out passage of the first and second coil members
Flat type transformer.
3. The method of claim 2,
The upper shield member
A rectangular ring portion having a square penetrating portion at a central portion thereof;
An inner and outer soft protrusion wall portion protruding in a direction orthogonal to the outer ring of the rectangular ring portion and the inner ring;
A plurality of reinforcing ribs spaced apart from each other in the circumferential direction while connecting the inner and outer sheath walls; And
And an upper portion of the coil receiving plate formed across the bottom surface side of the square penetrating portion of the rectangular ring portion
Flat type transformer.
5. The method of claim 4,
Wherein the lower shield member is formed of a plate-shaped body having bent portions formed by bending one side of the opposite side edges thereof
Flat type transformer.
6. The method of claim 5,
The shielding means
A through hole formed in four corners of the plate-shaped portion of the base plate member;
A hook that projects downward from an outer surface of each corner of the rectangular ring portion of the upper shield member and has a hook at an end thereof; And
And a locking hole formed at each end of the bent portion of the lower shield member
Flat type transformer.
The method according to claim 1,
The shielding means
A through hole formed in four corners of the plate-shaped portion of the base plate member;
A hook that protrudes from four corners of the shield member of one of the upper shield member and the lower shield member and has a hook at an end thereof; And
And a locking hole formed at each of four corners of the other shielding member of the upper shield member and the lower shield member to receive and fix the hook of the hook.
Flat type transformer.
5. The method of claim 4,
The width between the two sheets of the base plate member and the width of the upper portion of the coil receiving plate of the upper shield member are formed identically,
And the upper core member and the lower core member each comprise a block body having an inner groove portion having a width corresponding to a width between the two sheets of the base plate member and a width of the upper portion of the coil seating plate of the upper shield member Featured
Flat type transformer.

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