KR102419204B1 - Bobbin for transformer with extended number of pins and transformer including the same - Google Patents

Abstract

Disclosed are a bobbin for a transformer with an extended number of pins, which can increase the number of connecting pins, thereby securing the sufficient distance between lead wires, and a transformer including the same. The bobbin for a transformer with an extended number of pins, which is installed on a substrate, comprises: a tubular winding part which is disposed parallel to the longitudinal direction of the bobbin and around which a coil is wound; pin supporters disposed at one end and the other end of the winding part in the longitudinal direction of the bobbin, and provided to be supported on the substrate to space the winding part away from the substrate in the height direction of the bobbin; and connection pins some of which are coupled to the pin supporters to be connected to the lead wire of the coil, and others are coupled to the substrate. The connection pins include: first connection pins disposed on some of the pin supporters; and second connection pins disposed on others of the pin supporters. The first connection pins and the second connection pins are provided in different amounts.

Description

Bobbin for transformer with extended number of pins and transformer including the same

The present invention relates to a bobbin for a transformer with an extended pin count and a transformer including the same.

Due to the development of semiconductor technology and communication technology, electronic devices are becoming smaller.

Accordingly, the components installed in the electronic device are miniaturized according to set specifications and integrated on one substrate.

Among the components integrated on the board, a transformer for dropping a commercial voltage is provided.

The transformer includes a bobbin, a coil wound around the bobbin to form a magnetic force, a core coupled to the bobbin to move magnetism to the coil, and connection pins electrically connected to the coil to input and output electricity.

However, as described above, the conventional transformer manufactured for the purpose of miniaturization has a very small size, so the distance between the connecting pins is very narrow, and since the connecting pins are spaced apart at the same distance, the lead wires are larger than the distance between the connecting pins. There was a problem in that it could not be connected to the connecting pins in a state spaced apart by the interval.

In addition, since the gap between the connecting pins of the conventional transformer is very narrow, when a lead wire is connected to a connecting pin, a phenomenon occurs in which the lead wire connected to the connecting pin interferes with other adjacent connecting pins, which may cause a short circuit during operation of the transformer. There was a problem making

In addition, the conventional transformer is vulnerable to heat, and in the process of connecting the lead wire to the connecting pin, the bobbin is deformed or damaged by high temperature heat.

Korean Patent Publication No. 10-2008-0031481

The present invention has been devised to solve the above problems, and an object of the present invention is to extend the number of pins of the connecting pins to secure a sufficient separation distance between the lead wires. to provide a transformer.

Another object of the present invention is to provide a bobbin for a transformer and a transformer including the same, in which the number of pins capable of securing a safe distance between a substrate and a coil is increased by improving the structure of the bobbin.

Another object of the present invention is to provide a bobbin for a transformer with an increased number of pins capable of preventing interference between a lead wire connected to a connection pin and another connection pin disposed adjacent to the lead wire, and a transformer including the same.

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

A transformer bobbin with an extended number of pins according to an embodiment of the present invention for solving the above problems is a transformer bobbin installed on a substrate, which is arranged parallel to the longitudinal direction of the bobbin, and is of a tubular type around which a coil is wound. winding part; pin supporters disposed at one end and the other end of the winding unit along the longitudinal direction of the bobbin, supported by the substrate, and configured to separate the winding unit from the substrate along the height direction of the bobbin; and connecting pins, a portion of which is coupled to the pin supporters and connected to the lead wire of the coil, and the other portion is coupled to the substrate, wherein the connecting pins are first connecting pins disposed on a portion of the pin supporters. ; and second connection pins disposed on different portions of the pin supporters, wherein the first connection pins and the second connection pins have different quantities.

The pin supporters may include: a first pin supporter disposed at one end of the winding part along a longitudinal direction of the bobbin and to which the first connection pins are coupled; and a second pin supporter disposed at the other end of the winding unit along the longitudinal direction of the bobbin, to which the second connection pins are coupled, and having a length different from that of the first pin supporter; and, the second pin supporter may have a longer length than that of the first pin supporter, and the number of the second connection pins may be greater than that of the first connection pins.

The second fin supporter may include: a first support region having a length corresponding to a length of the first fin supporter; a second support region disposed on one side of the first support region in a longitudinal direction of the second pin supporter and having a length different from that of the first support region; and a third support area disposed on the other side of the first support area along the longitudinal direction of the second pin supporter and having a length different from that of the first support area, wherein the second connection pins include: 2-1 connection pins disposed in the first support area and having a quantity corresponding to the first connection pins; at least one 2-2 connection pin disposed in the second support area and having a quantity different from that of the 2-1 connection pins; and at least one 2-3 th connection pin disposed in the third support region and having a different quantity from the 2-1 th connection pins.

A length of the second support region and a length of the third support region are shorter than a length of the first support region, and a length of the second support region is the same as a length of the third support region, or the third support region is formed longer than the length of , the 2-2 connection pin and the 2-3 connection pin have a smaller quantity than the 2-1 connection pins, and the 2-2 connection pin is the 2-3 connection pins The same as the connecting pins or having a larger quantity than the 2-3 connecting pins, the relative ratio of the length of the second pin supporter to the length of the first pin supporter is 1:1.4 or more and 1:1.6, and the second A relative ratio of the quantity of the 2-2 connection pins to the quantity of the -3 connection pins may be 1:1 to 1:2.

The winding unit is disposed parallel to one surface of the substrate so that the coil is wound along a horizontal direction, and is spaced apart from one surface of the substrate by the height of the pin supporter, the height of the bobbin relative to the height of the pin supporter. The contrast is 1:1.9 to 1:2.2, the relative ratio of the height of the pin supporter to the height of the winding part is 1:1.5 to 1.8, and the winding part includes: a pipe part on which the coil is wound; and flange portions disposed at both ends of the tube portion along the longitudinal direction of the bobbin to connect the tube portion and the pin supporters, and between the first connecting pins and the second connecting pins compared to the length of the tube portion. The relative ratio of the distances is 1:1.3 to 1:1.4, and the pin supporter includes: first supporters disposed opposite to each other in a width direction of the bobbin and supported by the substrate; a second support portion disposed between the first support portions to which the connection pins are coupled, and a second support portion spaced apart from the substrate when the first support portions are supported on the substrate; a plurality of lead guide grooves formed in the second support part along the width direction of the bobbin, and in which a part of the lead wire is accommodated; and guide protrusions protruding from one surface of the second support part and configured to support and guide another portion of the lead wire extending from the lead guide groove to the connection pin. The relative ratio of the heights of the supports may be from 1:1.2 to 1:1.4.

A cover coupled to the bobbin to support the core surrounding the coil, the cover further comprising: a first cover disposed on the flange portion to support an upper surface of the core; and a second cover disposed on the pin supporter to support a lower surface of the core, wherein the length of the second cover protruding from the outer surface of the pin supporter in the longitudinal direction of the bobbin is, It may be formed to be longer than the length protruding from the outer surface of the pin supporter.

In accordance with an embodiment of the present invention for solving the above problems, a transformer including a bobbin for a transformer extending the number of pins includes a bobbin configured to be installed on a substrate; a coil wound on the bobbin; and a core coupled to the bobbin and disposed to surround a circumference of the coil, wherein the bobbin is disposed parallel to a longitudinal direction of the bobbin, and a tubular winding part around which the coil is wound; pin supporters disposed at one end and the other end of the winding unit along the longitudinal direction of the bobbin, supported by the substrate, and configured to separate the winding unit from the substrate along the height direction of the bobbin; and connecting pins, a portion of which is coupled to the pin supporters and connected to the lead wire of the coil, and the other portion is coupled to the substrate, wherein the connecting pins are first connecting pins disposed on a portion of the pin supporters. ; and second connection pins disposed on different portions of the pin supporters, wherein the first connection pins and the second connection pins have different quantities.

According to the embodiment of the present invention, since the number of pins of the connection pins is expanded through improvement of the structure of the bobbin, a sufficient separation distance between the lead wires can be secured, and through this, it is possible to apply to various specification conditions, thereby improving usability and usability. can be increased

In addition, since a safe distance between the coil and the substrate is sufficiently secured, it is possible to prevent short circuit and maintain the operating performance of the transformer in an optimal state.

In addition, since interference between the lead wire connected to the connecting pin and other connecting pins disposed adjacent to the lead wire is prevented, a short circuit can be prevented.

The effect according to the present invention is not limited by the contents exemplified above, and more various effects are included in the present invention.

1 is a front view schematically showing a state in which a transformer according to an embodiment of the present invention is installed on a substrate.
2 is a perspective view showing a bobbin according to an embodiment of the present invention.
3 is a front view showing a bobbin according to an embodiment of the present invention.
4 is a bottom view showing a bobbin according to an embodiment of the present invention.
5 is a right side view showing a bobbin according to an embodiment of the present invention.
6 is a left side view showing a bobbin according to an embodiment of the present invention.
7 is a view schematically showing the structure of a lead guide groove according to an embodiment of the present invention.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, since various changes may be made to the embodiments, the scope of the patent application is not limited or limited by these embodiments. It should be understood that all modifications, equivalents and substitutes for the embodiments are included in the scope of the rights.

Specific structural or functional descriptions of the embodiments are disclosed for purposes of illustration only, and may be changed and implemented in various forms. Accordingly, the embodiments are not limited to the specific disclosure form, and the scope of the present specification includes changes, equivalents, or substitutes included in the technical spirit.

Although terms such as first or second may be used to describe various elements, these terms should be interpreted only for the purpose of distinguishing one element from another. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component.

When a component is referred to as being “connected to” another component, it may be directly connected or connected to the other component, but it should be understood that another component may exist in between.

The terms used in the examples are used for the purpose of description only, and should not be construed as limiting. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprise" or "have" are intended to designate that a feature, number, step, operation, component, part, or a combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiment belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

In addition, in the description with reference to the accompanying drawings, the same components are given the same reference numerals regardless of the reference numerals, and the overlapping description thereof will be omitted. In describing the embodiment, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the embodiment, the detailed description thereof will be omitted.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims.

In the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. have meaning Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in an embodiment of the present invention, an ideal or excessively formal meaning is not interpreted as

The shapes, sizes, proportions, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of the present invention are illustrative and the present invention is not limited to the illustrated matters. In addition, in describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. When 'including', 'having', 'consisting', etc. mentioned in this specification are used, other parts may be added unless 'only' is used. When a component is expressed in the singular, cases including the plural are included unless otherwise explicitly stated.

In interpreting the components, it is construed as including an error range even if there is no separate explicit description.

In the case of a description of the positional relationship, for example, when the positional relationship of two parts is described as 'on', 'on', 'on', 'beside', etc., 'right' Alternatively, one or more other parts may be positioned between two parts unless 'directly' is used.

Reference to an element or layer “on” another element or layer includes any intervening layer or other element directly on or in the middle of another element. Like reference numerals refer to like elements throughout.

The size and thickness of each component shown in the drawings are illustrated for convenience of description, and the present invention is not necessarily limited to the size and thickness of the illustrated component.

Each feature of the various embodiments of the present invention may be partially or wholly combined or combined with each other, and as those skilled in the art will fully understand, technically various interlocking and driving are possible, and each embodiment may be implemented independently of each other, It may be possible to implement together in a related relationship.

1 is a front view schematically showing a state in which a transformer is installed on a substrate according to an embodiment of the present invention, FIG. 2 is a perspective view showing a bobbin according to an embodiment of the present invention, and FIG. 3 is a bobbin according to an embodiment of the present invention is a front view showing

1 to 3 , a bobbin 1000 (hereinafter referred to as a 'bobbin 1000') for a transformer T with an extended number of pins according to an embodiment of the present invention is installed on a substrate P, and a coil (2000) and is configured to be coupled with the core (3000).

The bobbin 1000 includes a winding unit 1 , pin supporters 2 and connecting pins 3 .

The winding part 1 is formed in the form of a hollow tube, and is disposed parallel to the longitudinal direction D1 of the bobbin 1000, and the coil 2000 is wound around it.

4 is a bottom view showing a bobbin according to an embodiment of the present invention.

1, 3 and 4 , the winding part 1 includes a pipe part 11 on which a coil 2000 is wound, and both ends of the pipe part 11 along the longitudinal direction D1 of the bobbin 1000 . It may include flange portions 12 for connecting the tube portion 11 and the pin supporters (2).

At this time, the relative ratio of the distance L2 between the first connecting pins 31 and the second connecting pins 32 to the length L1 of the pipe portion 11 may be 1:1.3 to 1:1.4.

1 to 3 , the pin supporters 2 are disposed at one end and the other end of the winding unit 1 along the longitudinal direction D1 of the bobbin 1000, and are supported on the substrate P. The winding unit 1 is configured to be spaced apart from the substrate P along the height direction D2 of the bobbin 1000 .

A part of the connecting pins 3 is coupled to the pin supporters 2 to be connected to the lead wire 2001 of the coil 2000, and the other part is configured to be coupled to the substrate P.

5 is a right side view showing a bobbin according to an embodiment of the present invention, and FIG. 6 is a left side view showing a bobbin according to an embodiment of the present invention.

3 to 6 , the connection pins 3 include first connection pins 31 disposed on a portion of the pin supporters 2 and second connection pins disposed on other portions of the pin supporters 2 . (32).

The first connecting pins 31 and the second connecting pins 32 have different quantities.

Specifically, the second connection pins 32 have a larger number than the first connection pins 31 .

The pin supporters 2 are disposed at one end of the winding part 1 along the longitudinal direction D1 of the bobbin 1000 , and the first pin supporter 2A and the bobbin to which the first connection pins 31 are coupled. A second pin supporter 2B disposed at the other end of the winding unit 1 along the longitudinal direction D1 of 1000 and to which the second connection pins 32 are coupled may be included.

The second pin supporter 2B to which the second connection pins 32 are coupled may have a different length from that of the first pin supporter 2A.

The second fin supporter 2B may have a longer length than that of the first fin supporter 2A.

For example, the relative ratio of the length SL1 of the first fin supporter 2A to the length SL2 of the second fin supporter may be 1:1.4 or more and 1:1.6.

4 to 6 , the second fin supporter 2B may include a plurality of support regions.

The second fin supporter 2B includes a first support region 2B1 having a length corresponding to the length SL1 of the first fin supporter 2A, and a first support along the longitudinal direction of the second fin supporter 2B. A second support region 2B2 disposed on one side of the region 2B1 and having a length different from that of the first support region 2B1, and a first support region 2B1 along the longitudinal direction of the second pin supporter 2B ) and may include a third support region 2B3 having a length different from that of the first support region 2B1.

Specifically, the length of the second support region 2B2 and the length of the third support region 2B3 are shorter than the length of the first support region 2B1, and the length of the second support region 2B2 is equal to the length of the third support region ( The length may be the same as the length of 2B3 , or may be formed to be longer than the length of the third support region 2B3 .

The second connection pins 32 are disposed in the first support area 2B1 , the 2-1 connection pins 321 having a quantity corresponding to the first connection pins 31 , and the second support area 2B2 . at least one 2-2 connection pin 322 having a quantity different from that of the 2-1 connection pins 321 and disposed in the third support area 2B3, the 2-1 connection pins ( 321) and may include at least one 2-3th connection pin 323 having a different quantity.

Specifically, the 2-2 connection pin 322 and the 2-3 connection pin 323 have a smaller quantity than the 2-1 connection pins 321 , and the 2-2 connection pin 322 is the second connection pin 322 . It may be the same as the 2-3 connection pin 323 or may have a larger quantity than the 2-3 connection pin 323 .

For example, the relative ratio of the quantity of the 2nd-2nd connection pins 322 to the quantity of the 2-3rd connection pins 323 may be 1:1 to 1:2.

Meanwhile, referring to FIGS. 1 and 5 , the winding unit 1 is disposed parallel to one surface of the substrate P so that the coil 2000 is wound along the horizontal direction, and a pin supporter is formed from one surface of the substrate P. It may be spaced apart by the height H1 of (2).

At this time, the relative ratio of the height H2 of the bobbin 1000 to the height H1 of the pin supporter 2 is 1:1.9 to 1:2.2, and the height H3 of the winding part 1 to the pin supporter 2 ) the relative ratio of the height H1 may be 1:1.5 to 1.8.

In addition, the pin supporters 2 are disposed to face each other along the width direction D3 of the bobbin 1000 , and between the first supporters 21 supported by the substrate P and the first supporters 21 . When the connecting pins 3 are coupled to each other and the first support parts 21 are supported on the substrate P, the second support part 22 may include a second support part 22 spaced apart from the substrate P.

In this case, the relative ratio of the height H1 of the first support part 21 to the height H4 of the second support part 22 may be 1:1.2 to 1:1.4.

In addition, the pin supporters 2 are formed in plurality in the second support portion 22 along the width direction D3 of the bobbin 1000 , and have lead guide grooves 23 in which a part of the lead wire 2001 is accommodated. may include more.

7 is a view schematically showing the structure of a lead guide groove according to an embodiment of the present invention.

Referring to FIG. 7 , the lead guide groove 23 has a wedge structure in which the size of the space in which the lead wire 2001 is accommodated is gradually narrowed along the longitudinal direction D1 of the bobbin 1000. The size of the space in which the lead wire 2001 is accommodated along the longitudinal direction D1 of the bobbin 1000 may include the second groove portion 232 having the same width.

4, 5 and 7 , the pin supporters 2 protrude from one surface of the second support part 22 and lead to the connecting pin 3 from the lead guide groove 23. The other of the lead wire 2001 and a guide protrusion 24 configured to support and guide the portion.

1 and 3 , the bobbin 1000 may further include a cover 4 .

The cover 4 may be coupled to the bobbin 1000 and configured to support the core 3000 surrounding the circumference of the coil 2000 .

The cover 4 includes a first cover 41 disposed on the flange portion 12 to support the upper surface of the core 3000 and a second cover 41 disposed on the pin supporter 2 to support the lower surface of the core 3000 ( 42) may be included.

At this time, the length L3 of the second cover 42 protruding from the outer surface of the pin supporter 2 along the longitudinal direction D1 of the bobbin 1000 is, the guide projection 24 is the outer surface of the pin supporter 2 . It may be formed to be longer than the length L4 protruding from the .

Meanwhile, although not shown in the drawings, the bobbin 1000 may further include a protection tube (not shown) coated on the lead wire 2001 of the coil 2000 .

The protective tube may prevent the lead wire 2001 from directly contacting the bobbin 1000 to protect the bobbin 1000 from high-temperature heat radiated from the lead wire 2001 .

In addition, although not shown in the drawings, the connecting pin 3 is detachably coupled to the second support 22 of the pin supporter 2, and may be configured to be fixed by pressing the lead wire 2001 wound around it. .

For example, the connecting pin 3 is disposed between a fastening part screwed to the second support part 22 by having a thread formed around it, a pin part coupled to the substrate P, and the fastening part and the pin part, and the pin part It has a larger diameter than that, and may include a pressing part for pressing and fixing the lead wire 2001 wound around the fastening part toward the second support part 22 while moving toward the second support part 22 by the fastening part. In this case, the fastening part of the connecting pin 3 is accommodated in the second support part 22 , and a fastening groove in which a thread corresponding to the screw thread of the fastening part is formed may be formed.

In addition, although not shown in the drawings, the pin supporters 2 may have a height-adjustable and buffer-able structure.

For example, each pin supporter 2 may include a first support member disposed at an upper portion along the height direction D2 of the bobbin 1000 and a second support member disposed at a lower portion thereof. At this time, the second cover 42 is disposed on the first support member, and the first support parts 21 , the second support part 22 , the lead guide grooves 23 and the guide protrusion 24 on the second support member. can be placed. In addition, each of the pin supporters 2 may include an elastic member disposed between the first support member and the second support member and elastically supporting the first support member and the second support member. Here, the elastic member may be formed in the form of an integrated leaf spring having a curved concave-convex structure along the longitudinal direction. In addition, each pin supporter 2 passes through the height adjustment nut and the fastening brackets installed in any one of the fastening brackets and the fastening brackets disposed on the outer surfaces of the first support member and the second support member. It may include a bolt for height adjustment that is fastened to the adjustment nut and adjusts a distance between the first support member and the second support member through a fastening process with the height adjustment nut. For reference, when the height adjustment bolt is rotated clockwise, the brackets are pressed so that the first support member and the second support member are arranged adjacently, and when the height adjustment bolt is rotated counterclockwise, the pressure applied to the brackets is released. The first support member and the second support member may be spaced apart. At this time, when the height adjustment bolt is rotated counterclockwise to release the pressure applied to the brackets, the elastic member compressed between the first support member and the second support member is restored by the elastic force, and the first support member and the second support member 2 By pressing the support member, the first support member and the second support member may be spaced apart from each other.

In addition, although not shown in the drawings, the bobbin 1000 may be configured to adjust the length L1 of the pipe part 11 and the distance between the first connection pins 31 and the second connection pins 32 . At this time, the length L1 of the pipe part 11 and the distance between the first connection pins 31 and the second connection pins 32 may maintain the above-described relative ratio of 1:1.3 to 1:1.4.

For example, the bobbin 1000 includes a first support bracket disposed at one end of the first pin supporter 2A, a second support bracket disposed at one end of the second pin supporter 2B, and a second 1 The length adjustment nut coupled to the support bracket, the second support bracket and the first support bracket pass through the length adjustment nut, and are fastened to the length adjustment nut, rotated clockwise or counterclockwise, the first pin supporter 2A and the second pin supporter It may further include a length adjustment bolt configured to adjust the distance between (2B). In addition, the bobbin 1000 includes a third support bracket disposed at the other end of the first pin supporter 2A, a fourth support bracket disposed at the other end of the second pin supporter 2B, and a third support It is coupled through the bracket and the fourth support bracket, and when the first pin supporter 2A and the second pin supporter 2B move, the third support bracket and the fourth support bracket are attached to the bobbin 1000 in the longitudinal direction (D1) It may include a guide bar configured to guide. At this time, the pipe part 11 is separated from the flange parts 12, and the inside of the pipe part 11 is coupled to the flange parts 12, respectively, and the first pin supporter 2A and the second pin supporter 2B. ), extended pipe parts that slide along the inner surface of the pipe part 11 by each flange part 12 during movement may be disposed.

Hereinafter, a transformer (T) (hereinafter referred to as a 'transformer (T)') including a bobbin 1000 for a transformer having an extended pin count according to an embodiment of the present invention will be described.

For reference, for each configuration for describing the present transformer T, the same reference numerals used while describing the bobbin 1000 are used for convenience of explanation, and the same or overlapping description will be omitted.

1 and 2 , the transformer T includes a bobbin 1000 configured to be installed on a substrate P, a coil 2000 wound around the bobbin 1000 , and a coil 2000 coupled to the bobbin 1000 . ) includes a core (3000) disposed to surround the circumference.

The bobbin 1000 is arranged parallel to the longitudinal direction D1 of the bobbin 1000, the tubular winding part 1 around which the coil 2000 is wound, the longitudinal direction D1 of the bobbin 1000 It is arranged at one end and the other end of the winding unit 1 according to the configuration, and is supported on the substrate P to separate the winding unit 1 from the substrate P along the height direction D2 of the bobbin 1000. The pin supporters 2 and a part are coupled to the pin supporters 2 and are connected to the lead wire 2001 of the coil 2000, and the other part includes connection pins 3 coupled to the substrate P. .

Here, the connection pins 3 include first connection pins 31 disposed on a portion of the pin supporters 2 and second connection pins 32 disposed on other portions of the pin supporters 2, The first connecting pins 31 and the second connecting pins 32 have different quantities.

As described above, according to the embodiment of the present invention, since the number of pins of the connection pins 3 is expanded through the improvement of the structure of the bobbin 1000, a sufficient separation distance can be secured between the lead wires 2001, and through this, various specifications It can be applied to conditions, so that usability and usability can be increased.

In addition, since the safety distance between the coil 2000 and the substrate P is sufficiently secured, it is possible to prevent short circuit and maintain the operating performance of the transformer T in an optimal state.

In addition, since interference between the lead wire 2001 connected to the connecting pin 3 and other connecting pins 3 disposed adjacent to the lead wire 2001 is prevented, a short circuit can be prevented.

In addition, since the bobbin 1000 is formed of a heat-resistant material, deformation and damage to the bobbin due to high temperature can be prevented when the lead wire 2001 and the connecting pin 3 are connected.

Although the embodiments of the present invention have been described in more detail with reference to the accompanying drawings, the present invention is not necessarily limited to these embodiments, and various modifications may be made within the scope without departing from the technical spirit of the present invention. . Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

T. Transformer
1000. Bobbin
1. Winding part
11. Officer
12. Flange
2. Pin supporter
2A. 1st pin supporter
2B. 2nd pin supporter
2B1. first support area
2B2. 2nd support area
2B3. 3rd support area
21. First Supports
22. Second support
23. Lead guide groove
231. First groove
232. Second groove
24. Guide bumps
3. Connection pin
31. First connection pins
32. Second connection pins
321. No. 2-1 Connection Pins
322. No. 2-2 connection pin
323. No. 2-3 connection pin
4. Cover
41. First Cover
42. Second Cover
2000. Coil
2001. Lead wire
3000. Core
P. Substrate

Claims (3)

As a bobbin for a transformer installed on a board,
a tubular winding portion disposed parallel to the longitudinal direction of the bobbin and around which a coil is wound;
pin supporters disposed at one end and the other end of the winding unit along the longitudinal direction of the bobbin, supported by the substrate, and configured to space the winding unit apart from the substrate along the height direction of the bobbin; and
a portion of which is coupled to the pin supporters to be connected to the lead wire of the coil, and the other portion is connected to the connection pins to be coupled to the substrate;
The connecting pins are
first connecting pins disposed on a portion of the pin supporters; and
Including; second connection pins disposed on other portions of the pin supporters;
The first connection pins and the second connection pins have different quantities,
The pin supporters are
a first pin supporter disposed at one end of the winding portion along the longitudinal direction of the bobbin and to which the first connection pins are coupled; and
a second pin supporter disposed at the other end of the winding portion along the longitudinal direction of the bobbin, the second connecting pins are coupled, and a second pin supporter having a different length from that of the first pin supporter;
The second pin supporter has a longer length than the first pin supporter,
The second connection pins have a larger quantity than the first connection pins,
The second pin supporter,
a first support region having a length corresponding to a length of the first pin supporter;
a second support region disposed on one side of the first support region in a longitudinal direction of the second pin supporter and having a length different from that of the first support region; and
a third support region disposed on the other side of the first support region along the longitudinal direction of the second pin supporter and having a length different from that of the first support region; and
The second connection pins are
2-1 connection pins disposed in the first support area and having a quantity corresponding to the first connection pins;
at least one 2-2 connection pin disposed in the second support area and having a different quantity from the 2-1 connection pins; and
At least one 2-3 connection pin disposed in the third support area and having a different quantity from the 2-1 connection pins; a transformer bobbin with an extended number of pins, including. delete delete

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