JP2020202212A - Transformer - Google Patents

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JP2020202212A
JP2020202212A JP2019106267A JP2019106267A JP2020202212A JP 2020202212 A JP2020202212 A JP 2020202212A JP 2019106267 A JP2019106267 A JP 2019106267A JP 2019106267 A JP2019106267 A JP 2019106267A JP 2020202212 A JP2020202212 A JP 2020202212A
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connector
wire
lead wire
line
transformer
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貴志 森本
Takashi Morimoto
貴志 森本
雄治 篠永
Yuji Shinonaga
雄治 篠永
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Daihen Corp
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Daihen Corp
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Abstract

To provide a transformer capable of safely and quickly cutting a sheath to achieve an electrical connection when a lead wire is covered by a thick sheath.SOLUTION: A transformer includes an iron core, a coil wound around the iron core, a lead wire 8a connected to the coil and covered with a resin coating portion 8b, and a connector for connecting the lead wire 8a. The connector has a protrusion 9c that presses against the coating portion 8b.SELECTED DRAWING: Figure 3

Description

本技術は、変圧器に関する。 This technology relates to transformers.

従来、板状の圧着部の一面に突起を形成し、圧着部を湾曲させ、前記一面によってアルミニウム電線を覆い、圧着部を前記電線に圧着させて、前記電線と他の部品とを電気的に接続させる接続部材が提案されている。前記電線はエナメル層に覆われているが、突起を押しつけることによって、エナメル層は切断され、電気的な接続が可能となる。 Conventionally, a protrusion is formed on one surface of a plate-shaped crimping portion, the crimping portion is curved, the aluminum electric wire is covered with the one surface, and the crimping portion is crimped to the electric wire to electrically press the electric wire and other parts. Connecting members to be connected have been proposed. The electric wire is covered with an enamel layer, but by pressing the protrusion, the enamel layer is cut and electrical connection becomes possible.

特許第６４４０２７７号公報Japanese Patent No. 64402777

ところで、エナメル層よりも厚みの大きい樹脂製の被覆部によって電線が覆われている場合、電線を接続させるためには、薬剤を使用して被覆部を予め除去する必要があった。薬剤を取り扱える作業員は限られ、また薬剤には毒性があった。また除去のために、被覆部を薬剤に長時間浸漬させる必要があった。 By the way, when the electric wire is covered with a resin coating portion having a thickness larger than that of the enamel layer, it is necessary to remove the coating portion in advance by using a chemical in order to connect the electric wire. The number of workers who could handle the drug was limited, and the drug was toxic. Further, for removal, it was necessary to immerse the covering portion in the chemical for a long time.

本開示は斯かる事情に鑑みてなされたものであり、厚みの大きい被覆部によって導線が覆われている場合に、被覆部を安全に且つ短時間で切断して、電気的な接続を実現することができる変圧器を提供することを目的とする。 The present disclosure has been made in view of such circumstances, and when the lead wire is covered with a thick covering portion, the covering portion is cut safely and in a short time to realize an electrical connection. The purpose is to provide a transformer that can.

本開示に係る変圧器は、鉄心と、該鉄心に巻回されたコイルと、該コイルに接続され、樹脂製の被覆部によって覆われた導線と、該導線を接続する接続具とを備え、前記接続具は前記被覆部を押圧する突起を有する。 The transformer according to the present disclosure includes an iron core, a coil wound around the iron core, a wire connected to the coil and covered with a resin coating, and a connector for connecting the wire. The connector has a protrusion that presses against the covering.

本開示においては、突起によって樹脂性の被覆部を押して切断し、被覆部内の導線を他の部品と電気的に接続させる。 In the present disclosure, the resin coating portion is pushed and cut by the protrusion, and the lead wire in the coating portion is electrically connected to other parts.

本開示に係る変圧器は、前記接続具は、前記導線と電力を供給する電力線とを接続する。 In the transformer according to the present disclosure, the connector connects the lead wire and the power line for supplying electric power.

本開示においては、導線と電力線との接続に、突起を有する接続具を使用し、迅速な接続作業を実現させる。 In the present disclosure, a connector having a protrusion is used for connecting the lead wire and the power line, and a quick connection work is realized.

本開示に係る変圧器は、タップ切換器を備え、前記接続具は、前記導線と、前記タップ切換器又は前記タップ切換器からの接続線とを接続する。 The transformer according to the present disclosure includes a tap changer, and the connector connects the lead wire to the tap changer or a connection line from the tap changer.

本開示においては、導線と、タップ切換器又はタップ切換器からの接続線との接続に、突起を有する接続具を使用し、迅速な接続作業を実現させる。 In the present disclosure, a connecting tool having a protrusion is used for connecting the lead wire and the tap changer or the connecting wire from the tap changer, and quick connection work is realized.

本開示に係る変圧器にあっては、突起によって樹脂性の被覆部を押して切断し、被覆部内の導線を他の部品と電気的に接続させる。薬剤を使用することなく、被覆部を除去する接続作業を行うことができ、安全に且つ短時間で接続作業を行うことができる。 In the transformer according to the present disclosure, the resin coating portion is pushed and cut by the protrusion, and the lead wire in the coating portion is electrically connected to other parts. The connection work for removing the covering portion can be performed without using a chemical, and the connection work can be performed safely and in a short time.

実施の形態１に係る変圧器の略示正面図である。It is a schematic front view of the transformer which concerns on Embodiment 1. FIG. 接続具の略示斜視図である。It is a schematic perspective view of a connector. 接続具に圧着された電力線及び連結線、並びに第一接続線及び第二接続線の略示断面図である。It is a schematic sectional view of the power line and the connecting line crimped to the connector, and the first connecting line and the second connecting line. 実施の形態２に係る接続具の略示斜視図である。It is a schematic perspective view of the connection tool which concerns on Embodiment 2. FIG. 接続具を介して接続されたタップ切換器及び第二接続線の略示平面図である。It is a schematic plan view of a tap changer and a second connection line connected via a connector. 接続具に圧着された複数の第二接続線の略示断面図である。It is a schematic sectional view of a plurality of second connection lines crimped to a connector.

（実施の形態１）
以下本発明を実施の形態１に係る変圧器を示す図面に基づいて説明する。図１は、変圧器の略示正面図である。変圧器１は、矩形環状の鉄心２と、該鉄心２の長辺部に巻回したコイル３とを備える。コイル３の両端部から鉄心２は突出する。 (Embodiment 1)
Hereinafter, the present invention will be described with reference to the drawings showing the transformer according to the first embodiment. FIG. 1 is a schematic front view of the transformer. The transformer 1 includes a rectangular annular iron core 2 and a coil 3 wound around a long side of the iron core 2. The iron core 2 projects from both ends of the coil 3.

コイル３の一端部において、鉄心２を覆うように支持台４が設けられている。支持台４は連結具５を介して、タップ切換器６を支持している。タップ切換器６には、タップ切換器６を上下に貫通した複数のタップ端子６ａが設けられている。複数の第一接続線１１の一端がタップ端子６ａの下側に接続されている。コイル３には、第二接続線１２の一端が接続されている。第一接続線１１及び第二接続線１２それぞれの他端は接続具９を介して接続されている。 At one end of the coil 3, a support 4 is provided so as to cover the iron core 2. The support base 4 supports the tap changer 6 via the connector 5. The tap changer 6 is provided with a plurality of tap terminals 6a that penetrate the tap changer 6 up and down. One end of the plurality of first connection lines 11 is connected to the lower side of the tap terminal 6a. One end of the second connecting wire 12 is connected to the coil 3. The other ends of the first connecting line 11 and the second connecting line 12 are connected via a connector 9.

コイル３には、外部の電力供給部（図示略）から電力が供給されている。電力供給部と、コイル３とは、電力線７及び連結線８を介して接続されている。ケースカバー５０のブッシング５１を介して、電力線７の一端が電力供給部に接続されている。コイル３には、連結線８の一端が接続されている。電力線７及び連結線８それぞれの他端は、接続具９を介して接続されている。 Power is supplied to the coil 3 from an external power supply unit (not shown). The power supply unit and the coil 3 are connected to each other via a power line 7 and a connecting line 8. One end of the power line 7 is connected to the power supply unit via the bushing 51 of the case cover 50. One end of the connecting wire 8 is connected to the coil 3. The other ends of the power line 7 and the connecting line 8 are connected via a connector 9.

図２は、接続具９の略示斜視図である。接続具９は円筒状をなす圧着部９ａを備え、圧着部９ａの外周面に複数の凹部９ｂが形成されている。凹部９ｂは、パンチによって形成されており、凹部９ｂの反対側、即ち圧着部９ａの内周面に、複数の突起９ｃが形成されている。 FIG. 2 is a schematic perspective view of the connector 9. The connector 9 includes a cylindrical crimping portion 9a, and a plurality of recesses 9b are formed on the outer peripheral surface of the crimping portion 9a. The recess 9b is formed by a punch, and a plurality of protrusions 9c are formed on the opposite side of the recess 9b, that is, on the inner peripheral surface of the crimping portion 9a.

図３は、接続具９に圧着された電力線７及び連結線８、並びに第一接続線１１及び第二接続線１２の略示断面図である。電力線７は、例えば銅線によって構成された導線７ａと、該導線７ａを被覆する被覆部７ｂとを有する。連結線８は、例えばアルミニウム線によって構成された導線８ａと、該導線８ａを被覆する樹脂製の被覆部８ｂとを有する。被覆部８ｂの厚みは、例えば０．３ｍｍ〜０．８ｍｍ程度である。一般に、エナメル層の厚みは、０．００３〜０．０３５ｍｍであり、被覆部の厚みはエナメル層の厚みに比べて充分に大きい。 FIG. 3 is a schematic cross-sectional view of the power line 7 and the connecting line 8 crimped to the connecting tool 9, and the first connecting line 11 and the second connecting line 12. The power line 7 has, for example, a lead wire 7a made of a copper wire and a covering portion 7b that covers the lead wire 7a. The connecting wire 8 has a lead wire 8a made of, for example, an aluminum wire, and a resin-made covering portion 8b that covers the lead wire 8a. The thickness of the covering portion 8b is, for example, about 0.3 mm to 0.8 mm. Generally, the thickness of the enamel layer is 0.003 to 0.035 mm, and the thickness of the covering portion is sufficiently larger than the thickness of the enamel layer.

接続具９の一端側に電力線７を挿入し、接続具９の他端側に連結線８を挿入し、治具を使用して、接続具９を電力線７及び連結線８に圧着させた場合、突起９ｃは電力線７及び連結線８の周囲を押し、複数の突起９ｃの間から導線７ａ、８ａが被覆部７ｂ、８ｂを突き破り、外側に出る。導線７ａ、８ａは接続具９に接続する。 When the power line 7 is inserted into one end side of the connector 9, the connecting wire 8 is inserted into the other end side of the connector 9, and the connector 9 is crimped to the power line 7 and the connecting wire 8 using a jig. , The protrusion 9c pushes around the power line 7 and the connecting line 8, and the lead wires 7a and 8a penetrate the covering portions 7b and 8b from between the plurality of protrusions 9c and come out to the outside. The lead wires 7a and 8a are connected to the connector 9.

第一接続線１１は、金属製の導線１１ａ及び該導線１１ａを覆う樹脂製の被覆部１１ｂを備える。第二接続線１２は、金属製の導線１２ａ及び該導線１２ａを覆う樹脂製の被覆部１２ｂを備える。 The first connecting wire 11 includes a metal lead wire 11a and a resin covering portion 11b that covers the lead wire 11a. The second connecting wire 12 includes a metal lead wire 12a and a resin covering portion 12b that covers the lead wire 12a.

接続具９の一端側に第一接続線１１を挿入し、接続具９の他端側に第二接続線１２を挿入し、治具を使用して、接続具９を第一接続線１１及び第二接続線１２に圧着させた場合、上述したように、第一接続線１１の導線１１ａは被覆部１１ｂを突き破って、接続具９に接続し、第二接続線１２の導線１２ａは被覆部１２ｂを突き破って、接続具９に接続する。 Insert the first connecting wire 11 into one end side of the connecting tool 9, insert the second connecting wire 12 into the other end side of the connecting tool 9, and use a jig to insert the connecting tool 9 into the first connecting wire 11 and When crimped to the second connecting wire 12, as described above, the lead wire 11a of the first connecting wire 11 breaks through the covering portion 11b and is connected to the connector 9, and the conducting wire 12a of the second connecting wire 12 is the covering portion. It breaks through 12b and connects to the connector 9.

実施の形態１に係る変圧器にあっては、突起９ｃによって樹脂性の被覆部７ｂ、８ｂ、１１ｂ、１２ｂを押して切断し、被覆部７ｂ、８ｂ、１１ｂ、１２ｂ内の導線７ａ、８ａ、１１ａ、１２ａを他の部品と電気的に接続させる。薬剤を使用することなく、被覆部７ｂ、８ｂ、１１ｂ、１２ｂを除去する接続作業を行うことができ、安全に且つ短時間で接続作業を行うことができる。 In the transformer according to the first embodiment, the resin covering portions 7b, 8b, 11b, 12b are pushed and cut by the protrusions 9c, and the conducting wires 7a, 8a, 11a in the covering portions 7b, 8b, 11b, 12b are cut. , 12a are electrically connected to other parts. The connection work for removing the covering portions 7b, 8b, 11b, and 12b can be performed without using a chemical, and the connection work can be performed safely and in a short time.

また導線８ａと電力線７との接続に、突起９ｃを有する接続具９を使用し、迅速な接続作業を実現させる。またコイル３からの第二接続線１２とタップ切換器６からの第一接続線１１との接続に、突起９ｃを有する接続具９を使用し、迅速な接続作業を実現させる。 Further, a connecting tool 9 having a protrusion 9c is used for connecting the lead wire 8a and the power line 7, and a quick connection work is realized. Further, a connecting tool 9 having a protrusion 9c is used to connect the second connecting wire 12 from the coil 3 and the first connecting wire 11 from the tap changer 6, to realize a quick connection work.

接続具９の一端側に第一接続線１１を挿入し、接続具９の他端側に第二接続線１２を挿入し、接続具９を第一接続線１１及び第二接続線１２に圧着させた場合も、同様に、迅速な接続作業を実現させる。 The first connecting wire 11 is inserted into one end side of the connecting tool 9, the second connecting wire 12 is inserted into the other end side of the connecting tool 9, and the connecting tool 9 is crimped to the first connecting wire 11 and the second connecting wire 12. In the same case, quick connection work is realized.

（実施の形態２）
以下本発明を実施の形態２に係る変圧器を示す図面に基づいて説明する。実施の形態２の構成の内、実施の形態１と同様な構成については、同じ符号を付し、その詳細な説明を省略する。実施の形態１において、第一接続線１１及び第二接続線１２を接続していたが、実施の形態２においては第一接続線１１を使用せず、第二接続線１２を、接続具１０を介してタップ切換器６に接続する。 (Embodiment 2)
Hereinafter, the present invention will be described with reference to the drawings showing the transformer according to the second embodiment. Of the configurations of the second embodiment, the same configurations as those of the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. In the first embodiment, the first connection line 11 and the second connection line 12 were connected, but in the second embodiment, the first connection line 11 is not used and the second connection line 12 is connected to the connector 10. It is connected to the tap switch 6 via.

図４は、接続具１０の略示斜視図である。接続具１０は、柔軟な金属材、例えば銅材又は銅合金材によって構成されている。接続具１０は、樋状をなす圧着部１０ａと、圧着部１０ａの一端部から突出した舌部１０ｃとを備える。圧着部１０ａの内面には複数の突起１０ｂが形成されている。舌部１０ｃには貫通孔が形成されている。 FIG. 4 is a schematic perspective view of the connector 10. The connector 10 is made of a flexible metal material, for example, a copper material or a copper alloy material. The connector 10 includes a gutter-shaped crimping portion 10a and a tongue portion 10c protruding from one end of the crimping portion 10a. A plurality of protrusions 10b are formed on the inner surface of the crimping portion 10a. A through hole is formed in the tongue portion 10c.

図５は、接続具１０を介して接続されたタップ切換器６及び第二接続線１２の略示平面図、図６は、接続具１０に圧着された複数の第二接続線１２の略示断面図である。二つの第二接続線１２とタップ端子６ａとを接続する場合について説明する。二つの第二接続線１２の端部を、圧着部１０ａの内側に配置し、治具を用いて、二つの第二接続線１２を圧着部１０ａによって包み、圧着部１０ａを圧着させる。突起１０ｂは第二接続線１２の周囲を押し、複数の突起１０ｂの間から導線１２ａが被覆部８ｂを突き破り、外側に出る。導線１２ａは圧着部１０ａに接続する。 FIG. 5 is a schematic plan view of the tap changer 6 and the second connecting line 12 connected via the connecting tool 10, and FIG. 6 is a schematic view of the plurality of second connecting lines 12 crimped to the connecting tool 10. It is a sectional view. A case where the two second connection lines 12 and the tap terminal 6a are connected will be described. The ends of the two second connecting wires 12 are arranged inside the crimping portion 10a, and the two second connecting wires 12 are wrapped by the crimping portion 10a using a jig to crimp the crimping portion 10a. The protrusion 10b pushes around the second connecting wire 12, and the lead wire 12a penetrates the covering portion 8b from between the plurality of protrusions 10b and exits to the outside. The lead wire 12a is connected to the crimping portion 10a.

そして、舌部１０ｃをタップ端子６ａの下側に接続する。例えば、タップ端子６ａの下端部には雌ねじ（図示略）が形成されている。貫通孔１０ｄが雌ねじに対して同軸的に配置されるように、舌部１０ｃをタップ端子６ａの下側に配置し、ボルト（図示略）を貫通孔１０ｄに挿入し、ボルトに結合させる。ボルトの頭部とタップ端子６ａとの間に舌部１０ｃは狭持され、舌部１０ｃはタップ端子６ａに接続される。 Then, the tongue portion 10c is connected to the lower side of the tap terminal 6a. For example, a female screw (not shown) is formed at the lower end of the tap terminal 6a. The tongue portion 10c is arranged below the tap terminal 6a so that the through hole 10d is arranged coaxially with respect to the female screw, and a bolt (not shown) is inserted into the through hole 10d and coupled to the bolt. The tongue portion 10c is sandwiched between the head of the bolt and the tap terminal 6a, and the tongue portion 10c is connected to the tap terminal 6a.

なおタップ端子６ａの下端部に雄ねじを形成し、貫通孔１０ｄに雄ねじを挿入し、ナットを雄ねじに結合させて、舌部１０ｃとタップ端子６ａとを接続させてもよい。また接続具１０を介して、三つ以上又は単数の第二接続線１２をタップ端子６ａに接続してもよい。 A male screw may be formed at the lower end of the tap terminal 6a, the male screw may be inserted into the through hole 10d, and the nut may be connected to the male screw to connect the tongue portion 10c and the tap terminal 6a. Further, three or more or a single second connection line 12 may be connected to the tap terminal 6a via the connector 10.

実施の形態２にあっては、接続具１０の舌部１０ｃをタップ端子６ａに直接接続するので、第一接続線１１を削減し、迅速な接続作業を実現させることができる。 In the second embodiment, since the tongue portion 10c of the connector 10 is directly connected to the tap terminal 6a, the first connection line 11 can be reduced and a quick connection work can be realized.

今回開示した実施の形態は、全ての点で例示であって、制限的なものではないと考えられるべきである。各実施例にて記載されている技術的特徴は互いに組み合わせることができ、本発明の範囲は、特許請求の範囲内での全ての変更及び特許請求の範囲と均等の範囲が含まれることが意図される。 The embodiments disclosed this time should be considered to be exemplary in all respects and not restrictive. The technical features described in each example can be combined with each other and the scope of the invention is intended to include all modifications within the claims and scope equivalent to the claims. Will be done.

１ 変圧器 ２ 鉄心 ３ コイル ６ タップ切換器 ７ 電力線 ８ 連結線
８ａ 導線 ８ｂ 被覆部 ９、１０ 接続具 ９ａ、１０ａ 圧着部
９ｃ、１０ｂ 突起 １１ 第一接続線（接続線） １２ 第二接続線 1 Transformer 2 Iron core 3 Coil 6 Tap changer 7 Power line 8 Connecting line 8a Conducting wire 8b Covering part 9, 10 Connecting tool 9a, 10a Crimping part 9c, 10b Protrusion 11 First connecting line (connecting line) 12 Second connecting line

Claims (3)

鉄心と、
該鉄心に巻回されたコイルと、
該コイルに接続され、樹脂製の被覆部によって覆われた導線と、
該導線を接続する接続具と
を備え、
前記接続具は前記被覆部を押圧する突起を有する
変圧器。 With the iron core
The coil wound around the iron core and
A wire connected to the coil and covered with a resin coating,
Equipped with a connector for connecting the lead wire,
The connector is a transformer having a protrusion for pressing the covering portion. 前記接続具は、前記導線と電力を供給する電力線とを接続する
請求項１に記載の変圧器。 The transformer according to claim 1, wherein the connector is a transformer that connects the lead wire and a power line that supplies electric power. タップ切換器を備え、
前記接続具は、前記導線と、前記タップ切換器又は前記タップ切換器からの接続線とを接続する
請求項１に記載の変圧器。 Equipped with a tap changer
The transformer according to claim 1, wherein the connector connects the lead wire to the tap changer or a connection line from the tap changer.
JP2019106267A 2019-06-06 2019-06-06 Transformer Pending JP2020202212A (en)

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Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5031453Y1 (en) * 1970-03-27 1975-09-13
JPS5167321U (en) * 1974-11-25 1976-05-27
JPS55138813A (en) * 1979-04-16 1980-10-30 Hitachi Ltd 3-phase transformer
JPS57101474U (en) * 1980-12-12 1982-06-22
JPS58153428U (en) * 1982-04-07 1983-10-14 株式会社東芝 Transformer coil tap drawer structure
JPS6068622U (en) * 1983-10-18 1985-05-15 株式会社東芝 resin molded coil
JPS6417413A (en) * 1987-07-13 1989-01-20 Fuji Electric Co Ltd Molded transformer
JPH07263037A (en) * 1994-03-18 1995-10-13 Nichifu Co Ltd Connecting structure for linear heating element
JPH10294137A (en) * 1997-04-17 1998-11-04 Asahi Tec Corp Compression sleeve
JP2002124421A (en) * 2000-10-16 2002-04-26 Toshiba Corp Stationary induction device
JP2009266505A (en) * 2008-04-24 2009-11-12 Tohoku Electric Power Co Inc Coating penetrating type compression connector
JP2014044887A (en) * 2012-08-28 2014-03-13 Panasonic Corp Device for electrical connection between wire-wound coil and copper wire
JP2018198268A (en) * 2017-05-24 2018-12-13 東芝キヤリア株式会社 Reactor
JP6440277B1 (en) * 2017-11-24 2018-12-19 株式会社白山 Method for manufacturing crimp connection member
JP2019054204A (en) * 2017-09-19 2019-04-04 東芝産業機器システム株式会社 Stationary induction apparatus

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5031453Y1 (en) * 1970-03-27 1975-09-13
JPS5167321U (en) * 1974-11-25 1976-05-27
JPS55138813A (en) * 1979-04-16 1980-10-30 Hitachi Ltd 3-phase transformer
JPS57101474U (en) * 1980-12-12 1982-06-22
JPS58153428U (en) * 1982-04-07 1983-10-14 株式会社東芝 Transformer coil tap drawer structure
JPS6068622U (en) * 1983-10-18 1985-05-15 株式会社東芝 resin molded coil
JPS6417413A (en) * 1987-07-13 1989-01-20 Fuji Electric Co Ltd Molded transformer
JPH07263037A (en) * 1994-03-18 1995-10-13 Nichifu Co Ltd Connecting structure for linear heating element
JPH10294137A (en) * 1997-04-17 1998-11-04 Asahi Tec Corp Compression sleeve
JP2002124421A (en) * 2000-10-16 2002-04-26 Toshiba Corp Stationary induction device
JP2009266505A (en) * 2008-04-24 2009-11-12 Tohoku Electric Power Co Inc Coating penetrating type compression connector
JP2014044887A (en) * 2012-08-28 2014-03-13 Panasonic Corp Device for electrical connection between wire-wound coil and copper wire
JP2018198268A (en) * 2017-05-24 2018-12-13 東芝キヤリア株式会社 Reactor
JP2019054204A (en) * 2017-09-19 2019-04-04 東芝産業機器システム株式会社 Stationary induction apparatus
JP6440277B1 (en) * 2017-11-24 2018-12-19 株式会社白山 Method for manufacturing crimp connection member

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