JP2014120506A

JP2014120506A - Trans bobbin

Info

Publication number: JP2014120506A
Application number: JP2012272199A
Authority: JP
Inventors: Hideyuki Akiyama; 英之秋山; Hiko Ota; 彦太田
Original assignee: FDK Corp
Current assignee: FDK Corp
Priority date: 2012-12-13
Filing date: 2012-12-13
Publication date: 2014-06-30

Abstract

【課題】線材巻回時に、固定用のテープ等を用いることなく線材同士の接触や緩み等を防止することができ、よって小型化および多巻線化に対応することができるトランスボビンを提供する。
【解決手段】コイルを形成する複数本の線材Ｗが径方向に複数段に重ね巻きされる筒状の巻線部１０と、この巻線部１０の軸線方向の端部に一体的に形成されてコイルの端部が絡げられる複数本の端子１３が軸線と直交する方向に間隔をおいて植設された端子台１２とを備えたトランスボビンにおいて、端子台１２における端子１３の植設部と巻線部１０との間に、巻線部１０の軸線と直交する方向に延在する壁部１４を形成し、壁部１４に、中央部から両端部に向けて漸次高さ寸法が大きくなる段部１５を形成した。
【選択図】図２Provided is a transbobbin capable of preventing contact and loosening between wires without using a fixing tape or the like when winding the wire, and thus can cope with downsizing and multi-winding. .
A cylindrical winding portion 10 in which a plurality of wires W forming a coil are wound in a plurality of stages in a radial direction and an end portion in the axial direction of the winding portion 10 are integrally formed. In a transbobbin provided with a terminal block 12 in which a plurality of terminals 13 with which coil ends are entangled are spaced apart in a direction orthogonal to the axis, the planted portion of the terminal 13 in the terminal block 12 A wall portion 14 extending in a direction orthogonal to the axis of the winding portion 10 is formed between the winding portion 10 and the winding portion 10, and the height dimension of the wall portion 14 gradually increases from the center portion toward both end portions. The step part 15 was formed.
[Selection] Figure 2

Description

本発明は、線材が巻回される巻線部と、当該線材の端部が絡げられる端子が植設された端子台とが一体に形成されたトランスボビンに関するものである。 The present invention relates to a transbobbin in which a winding portion around which a wire is wound and a terminal block in which a terminal around which an end of the wire is entangled is integrally formed.

図６および図７は、従来のこの種のトランスボビンを示すもので、このトランスボビンは、コイルを形成するための線材２が巻回される角筒状の巻線部１と、この巻線部１の軸線方向の両端部に一体的に形成されて線材２の端部が絡げられる複数本の端子３が上記軸線と直交する方向に間隔をおいて植設された板状の端子台４ａ、４ｂとから概略構成されたものである。 FIGS. 6 and 7 show a conventional transbobbin of this type. This transbobbin includes a rectangular tube-shaped winding portion 1 around which a wire 2 for forming a coil is wound, and this winding. A plate-shaped terminal block in which a plurality of terminals 3 which are integrally formed at both ends in the axial direction of the portion 1 and the ends of the wire 2 are entangled are planted at intervals in a direction perpendicular to the axis. 4a and 4b.

ところで、このようなトランスボビンに線材２によってコイルを形成する場合には、先ず線材２を、一方の端子台４ａに植設された端子３に絡げた後に、当該線材２を巻線部１側に引き出してその外周に所定のターン数巻回すことにより上記コイルを形成し、次いでこの線材２を端子台４ａまたは端子台４ｂ側に引き戻して他の端子２に絡げる方法によって行っている。 By the way, when forming a coil with such a wire bobbin on such a transbobbin, first, the wire 2 is entangled with the terminal 3 implanted in one terminal block 4a, and then the wire 2 is connected to the winding part 1 side. Then, the coil is formed by winding a predetermined number of turns on the outer periphery of the wire, and then the wire 2 is pulled back to the terminal block 4a or the terminal block 4b to be entangled with another terminal 2.

そして、複数本の線材２を、順次巻線部１の径方向に複数段に重ね巻きする多巻線タイプのトランスボビンにおいては、各々の線材２に対して、順次上記工程が繰り返し行われることになる。 In a multi-winding type transbobbin in which a plurality of wire rods 2 are sequentially wound in a plurality of stages in the radial direction of the winding portion 1, the above steps are sequentially repeated for each wire rod 2. become.

この際に、端子台４ａ側から巻線部１側に引き出した線材２が、既に巻線部１に巻回されている線材の端子台４ａ側からの引き出し部分、あるいは端子台４ｂ側への引き戻し部分と接触したり、巻線部１に巻回する前に緩みが生じたりすることを防止するために、通常図７に示すように、端子２に絡げて巻線部１側に引き出した線材２を、一旦巻線部１側に面する端子台４ａの側面にテープ５によって仮固定する方法が採られている。 At this time, the wire 2 drawn from the terminal block 4a side to the winding portion 1 side is connected to the lead portion from the terminal block 4a side of the wire already wound around the winding portion 1 or to the terminal block 4b side. In order to prevent looseness before it is brought into contact with the retracted part or wound around the winding part 1, it is usually drawn around the terminal 2 and pulled out to the winding part 1 side as shown in FIG. A method of temporarily fixing the wire 2 to the side surface of the terminal block 4a facing the winding portion 1 side with a tape 5 is employed.

しかしながら、上記テープ５によって線材２を仮固定する方法にあっては、線材２の固定位置が安定しないために、依然として他の線材２と接触するおそれがあった。特に、近年、トランスに対する小型化および多巻線化の要請から、上記トランスボビンにおける複数本の線材２の間隔が極めて狭くなっているために、テープ５の幅寸法も小さくなり、作業に高い熟練度を要するとともに、確実に他の線材２との線接触を防止することが難しいという問題点があった。 However, in the method of temporarily fixing the wire 2 with the tape 5, the fixing position of the wire 2 is not stable, and there is still a possibility that the wire 2 may still be in contact with another wire 2. In particular, due to recent demands for miniaturization and multi-winding transformers, the distance between the plurality of wire rods 2 in the transformer bobbin is extremely narrow, so that the width dimension of the tape 5 is also reduced, and work is highly skilled. There is a problem that it is difficult to prevent contact with other wires 2 reliably.

そこで、線材２として、他の線材２と接触しても問題を生じない、三層絶縁電線などの特種線材を使用して対応することも考えられるものの、製品コストが過度に高くなってしまうという問題があった。 Therefore, although it may be possible to use a special wire such as a three-layer insulated wire that does not cause a problem even if it comes into contact with another wire 2 as the wire 2, the product cost becomes excessively high. There was a problem.

本発明は、上記事情に鑑みてなされたものであり、線材巻回時に、固定用のテープ等を用いることなく線材同士の接触や緩み等を防止することができ、よって小型化および多巻線化に対応することができるトランスボビンを提供することを課題とするものである。 The present invention has been made in view of the above circumstances, and can prevent contact or loosening between wires without using a fixing tape or the like when winding the wire, thereby reducing the size and the number of windings. It is an object of the present invention to provide a transbobbin that can cope with conversion.

上記課題を解決するため、請求項１に記載の発明は、コイルを形成する複数本の線材が順次径方向に複数段に重ね巻きされる筒状の巻線部と、この巻線部の軸線方向の端部に一体的に形成されて上記線材の端部が絡げられる複数本の端子が上記軸線と直交する方向に間隔をおいて植設された端子台とを備えたトランスボビンにおいて、上記端子台における上記端子の植設部と上記巻線部との間に、上記巻線部の上記軸線と直交する方向に延在する壁部を形成し、当該壁部に、上記軸線と直交する方向に向けて漸次高さ寸法が大きくなる段部を形成したことを特徴とするものである。 In order to solve the above-mentioned problems, the invention according to claim 1 is directed to a cylindrical winding portion in which a plurality of wires forming a coil are sequentially wound in a plurality of stages in the radial direction, and an axis of the winding portion. In a transbobbin provided with a terminal block that is integrally formed at the end of the direction and in which a plurality of terminals with which the end of the wire is entangled are spaced apart in a direction perpendicular to the axis, A wall portion extending in a direction orthogonal to the axis of the winding portion is formed between the terminal planting portion and the winding portion of the terminal block, and the wall portion is orthogonal to the axis. This is characterized in that a step portion whose height dimension gradually increases in the direction in which it is formed is formed.

また、請求項２に記載の発明は、請求項１に記載の発明において、上記段部は、上記壁部の中央部から両端部に向けて漸次高さ寸法が大きくなるように形成されていることを特徴とするものである。 According to a second aspect of the present invention, in the first aspect of the present invention, the stepped portion is formed so that the height dimension gradually increases from the central portion of the wall portion toward both end portions. It is characterized by this.

さらに、請求項３に記載の発明は、請求項１または２に記載の発明において、上記壁部と上記端子台との間に、底面が上記段部よりも低い溝部を形成したことを特徴とするものである。 Furthermore, the invention described in claim 3 is characterized in that, in the invention described in claim 1 or 2, a groove portion having a bottom surface lower than the stepped portion is formed between the wall portion and the terminal block. To do.

また、請求項４に記載の発明は、請求項１〜３のいずれかに記載の発明において、上記端子台の上記端子の植設部と上記壁部との間には、上記壁部に沿って複数本の柱部が立設され、隣接する上記柱部間に上記線材が挿通されることを特徴とするものである。 Further, the invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the terminal block is provided along the wall portion between the terminal planting portion and the wall portion. A plurality of pillars are erected, and the wire is inserted between the adjacent pillars.

請求項１〜４のいずれかに記載の発明によれば、端子台の端子の植設部と巻線部との間に壁部を形成するとともに、この壁部に巻線部の軸線と直交する方向に向けて漸次高さ寸法が大きくなる段部を形成しているために、巻線部に巻回する複数本の線材を、順次前段において巻回した線材よりも高さ寸法が大きい段部上に沿って端子台から巻線部側に引き出し、あるいは巻線部から端子台側に引き戻すことにより、テープ等を用いることなく、確実に巻線時における線材同士の接触や緩みを防止することができる。 According to the invention described in any one of claims 1 to 4, a wall portion is formed between the implanted portion of the terminal of the terminal block and the winding portion, and the wall portion is orthogonal to the axis of the winding portion. Since a step portion whose height dimension gradually increases in the direction to be formed is formed, a plurality of wire rods wound around the winding portion are stepped with a height dimension larger than the wire rod wound sequentially in the previous step. By pulling out from the terminal block to the winding part side along the part, or pulling back from the winding part to the terminal block side, it is possible to reliably prevent contact and loosening of the wire members during winding without using tape or the like. be able to.

ここで、壁部に、上記段部を巻線部の軸線と直交する方向に向けて漸次高さ寸法が大きくなるように形成するに際しては、様々な形態を採ることが可能であるが、例えば壁部の一端部から他端部に向けて漸次高さ寸法を増加させて行くと、全体として壁部の高さ寸法が大きくなって大型化を招くおそれがある。 Here, when forming the stepped portion on the wall portion so that the height dimension gradually increases in the direction orthogonal to the axis of the winding portion, various forms can be taken, for example, When the height dimension is gradually increased from one end portion to the other end portion of the wall portion, the height dimension of the wall portion as a whole may increase, leading to an increase in size.

この点、請求項２に記載の発明のように、中央部から両端部に向けて漸次高さ寸法が大きくなるように形成すれば、全体として壁部の高さ寸法を低く抑えることができる。 In this regard, as in the second aspect of the invention, if the height dimension is gradually increased from the central portion toward both ends, the height dimension of the wall portion can be kept low as a whole.

また、請求項３に記載の発明によれば、上記線材が交差する場合においても、壁部と端子台との間に、当該線材を案内する段部よりも低い位置に底面を有する溝部を形成しているために、上記線材同士が接触することを防ぐことができる。 According to the invention of claim 3, even when the wires intersect, a groove portion having a bottom surface is formed between the wall portion and the terminal block at a position lower than the step portion for guiding the wire material. Therefore, the wires can be prevented from contacting each other.

さらに、請求項４に記載の発明おいては、端子台の端子の植設部と壁部との間に、壁部に沿って複数本の柱部を立設し、隣接する柱部間に線材を通しているために、線材が所定の段部に隣接する段部へと脱落等することを防止することができ、よって線材の間隔が極めて狭い場合にも、確実に線材同士の接触を回避させることが可能になる。 Furthermore, in the invention according to claim 4, a plurality of pillars are erected along the wall part between the planted part of the terminal of the terminal block and the wall part, and between the adjacent pillar parts. Since the wires are being passed, the wires can be prevented from dropping off to a step adjacent to a predetermined step, and therefore, even when the distance between the wires is extremely narrow, contact between the wires can be reliably avoided. It becomes possible.

本発明のトランスボビンの一実施形態を示す底面図である。It is a bottom view which shows one Embodiment of the transbobbin of this invention. 図１のＩＩ−ＩＩ線視断面図である。It is the II-II sectional view taken on the line of FIG. 図１のＩＩＩ−ＩＩＩ線視断面図である。It is the III-III sectional view taken on the line of FIG. 図１のトランスボビンに線材を巻回する状態を示す底面図である。It is a bottom view which shows the state which winds a wire around the trans bobbin of FIG. 図４の斜視図である。FIG. 5 is a perspective view of FIG. 4. 従来のトランスボビンを示す底面図である。It is a bottom view which shows the conventional transbobbin. 図６のＶＩＩ−ＶＩＩ線視断面図である。It is a VII-VII line sectional view of Drawing 6.

図１〜図５は、本発明に係るトランスボビンの一実施形態を示すもので、図中符号１０が、コイルを形成する複数本の線材Ｗが、順次径方向に複数段に重ね巻きされる巻線部である。
この巻線部１０は、角筒状に形成されたもので、その軸線方向の両端部に形成されたフランジ部１１に、それぞれ端子台１２が一体成形されている。 1 to 5 show an embodiment of a transbobbin according to the present invention. In the figure, reference numeral 10 denotes a plurality of wire rods W forming a coil, which are successively wound in a plurality of stages in the radial direction. Winding part.
The winding portion 10 is formed in a rectangular tube shape, and terminal blocks 12 are integrally formed with flange portions 11 formed at both end portions in the axial direction.

この端子台１２は、巻線部１０の軸線と直交する方向に長手方向を有する角柱状に形成されたもので、その上面１２ａには、上記線材Ｗの端部を絡げるための複数本（本実施形態においては、１０本）の端子１３が、上記長手方向に間隔をおいて植設されている。そして、この端子台１２と巻線部１０との間に、壁部１４が形成されている。 The terminal block 12 is formed in a prismatic shape having a longitudinal direction in a direction perpendicular to the axis of the winding portion 10, and a plurality of terminal blocks 12 for binding the end portions of the wire W to the upper surface 12 a. (In this embodiment, 10 terminals) 13 are implanted at intervals in the longitudinal direction. A wall portion 14 is formed between the terminal block 12 and the winding portion 10.

この壁部１４は、巻線部のフランジ１１を巻線部１０の上記端子台１２の長手方向に沿って延出させたもので、この壁部１４には、上記長手方向の中央部から両端部に向けて各々漸次高さ寸法が大きくなる段部１５が形成されている。ここで、壁部１４は、両端部の最も高い上面が端子台１１における上面（端子１３の植設面）１２ａよりも幾分高い位置となる寸法に形成されている。 The wall portion 14 is obtained by extending the flange 11 of the winding portion along the longitudinal direction of the terminal block 12 of the winding portion 10. The wall portion 14 has both ends from the central portion in the longitudinal direction. Step portions 15 each having a gradually increasing height dimension toward the portion are formed. Here, the wall part 14 is formed in such a dimension that the highest upper surface of both end parts is positioned slightly higher than the upper surface (planting surface of the terminal 13) 12a in the terminal block 11.

さらに、この壁部１４と端子台１２との間には、底面が段部１５よりも低い溝部１６（図４においてはハッチングで示す。）が形成されている。また、端子台１２における端子１３と壁部１４との間には、壁部１４に沿って複数本（端子本数＋１本；本実施形態においては１１本）の柱部１７が立設されている。なお、端子台１２の長手方向の中央部における柱部１７は、壁部１４と一体化されている。そして、これら柱部１７間に、上記線材Ｗが挿通される間隙部が形成されている。 Further, a groove 16 (shown by hatching in FIG. 4) is formed between the wall 14 and the terminal block 12, the bottom surface of which is lower than the stepped portion 15. Further, between the terminal 13 and the wall portion 14 of the terminal block 12, a plurality of column portions 17 (the number of terminals + 1 + 1; 11 in this embodiment) are erected along the wall portion 14. . The column portion 17 at the center portion in the longitudinal direction of the terminal block 12 is integrated with the wall portion 14. A gap portion through which the wire W is inserted is formed between the pillar portions 17.

上記構成からなるトランスボビンにおいては、端子台１２における端子１３の植設部と巻線部１０との間に、壁部１４を形成するとともに、この壁部１４に、巻線部１０の軸線と直交する方向に向けて漸次高さ寸法が大きくなる段部１５を形成している。このため、図４および図５に示すように、巻線部１０に重ね巻きする複数本の線材Ｗを、順次前段において巻回した線材Ｗよりも高さ寸法が大きい段部１５上に沿って端子台１２から巻線部１０側に引き出し、あるいは巻線部１０から端子台１２側に引き戻すことにより、従来のようにテープ等を用いることなく、確実に巻線時における線材Ｗ同士の接触や緩みを防止することができる。 In the transbobbin configured as described above, a wall portion 14 is formed between the planted portion of the terminal 13 and the winding portion 10 in the terminal block 12, and the axis of the winding portion 10 is formed on the wall portion 14. A step portion 15 is formed in which the height dimension gradually increases in the orthogonal direction. For this reason, as shown in FIGS. 4 and 5, a plurality of wire rods W wound around the winding portion 10 are arranged along the step portion 15 having a height dimension larger than that of the wire rod W sequentially wound in the previous stage. By pulling out from the terminal block 12 to the winding part 10 side or pulling back from the winding part 10 to the terminal block 12 side, without using a tape or the like as in the prior art, Looseness can be prevented.

また、上記段部１５を、壁部１４の中央部から両端部側に向けて漸次高さ寸法が大きくなるように形成しているために、全体として壁部１４の高さ寸法を小さく抑えることができ、大型化を招くことがない。 In addition, since the step portion 15 is formed so that the height dimension gradually increases from the center portion of the wall portion 14 toward both end portions, the overall height of the wall portion 14 can be kept small. Can be made without increasing the size.

さらに、壁部１４と端子台１２との間に、線材Ｗを案内する段部１５よりも低い位置に底面を有する溝部１６を形成しているために、線材Ｗが交差する場合においても、線材Ｗ同士が接触することを防ぐことができる。 Further, since the groove portion 16 having a bottom surface is formed between the wall portion 14 and the terminal block 12 at a position lower than the step portion 15 that guides the wire rod W, the wire rod can be used even when the wire rod W intersects. Ws can be prevented from contacting each other.

加えて、端子台１２における端子１３の植設部と壁部１４との間に、端子台１２の長手方向に複数本の柱部１７を間隔をおいて立設し、図４に示すように、隣接する柱部１７間に線材Ｗを通しているために、線材Ｗが本来の段部１５の隣側の段部１５へと脱落等することを防止することができ、よって線材Ｗの間隔が極めて狭い場合にも、確実に線材Ｗ同士の接触を回避させることができる。 In addition, between the planted portion of the terminal 13 in the terminal block 12 and the wall portion 14, a plurality of column portions 17 are erected at intervals in the longitudinal direction of the terminal block 12, as shown in FIG. 4. Since the wire rod W is passed between the adjacent column portions 17, it is possible to prevent the wire rod W from dropping off to the step portion 15 adjacent to the original step portion 15, so that the interval between the wire rods W is extremely large. Even in a narrow case, contact between the wire rods W can be surely avoided.

１０巻線部
１２端子台
１３端子
１４壁部
１５段部
１６溝部
１７柱部
Ｗ線材 DESCRIPTION OF SYMBOLS 10 Winding part 12 Terminal block 13 Terminal 14 Wall part 15 Step part 16 Groove part 17 Column part W Wire material

Claims

A cylindrical winding portion in which a plurality of wire rods forming a coil are sequentially wound in a plurality of stages in the radial direction, and an end portion of the wire rod formed integrally with an end portion in the axial direction of the winding portion. In a transbobbin provided with a terminal block in which a plurality of terminals that are entangled with each other are planted at intervals in a direction perpendicular to the axis line,
A wall portion extending in a direction orthogonal to the axis of the winding portion is formed between the terminal planting portion and the winding portion of the terminal block, and the wall portion is orthogonal to the axis. A transbobbin, characterized in that a stepped portion having a gradually increasing height dimension is formed in the direction in which to move.

2. The transbobbin according to claim 1, wherein the stepped portion is formed so that a height dimension gradually increases from a central portion of the wall portion toward both end portions.

The transbobbin according to claim 1 or 2, wherein a groove portion whose bottom surface is lower than the stepped portion is formed between the wall portion and the terminal block.

A plurality of pillars are erected along the wall part between the terminal planting part and the wall part of the terminal block, and the wire is inserted between the adjacent pillar parts. The transbobbin according to any one of claims 1 to 3.