JPS6314410Y2 - - Google Patents
Info
- Publication number
- JPS6314410Y2 JPS6314410Y2 JP1981078444U JP7844481U JPS6314410Y2 JP S6314410 Y2 JPS6314410 Y2 JP S6314410Y2 JP 1981078444 U JP1981078444 U JP 1981078444U JP 7844481 U JP7844481 U JP 7844481U JP S6314410 Y2 JPS6314410 Y2 JP S6314410Y2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- winding
- heat pipe
- heat collector
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000004804 winding Methods 0.000 claims description 51
- 239000000463 material Substances 0.000 claims description 3
- 239000012212 insulator Substances 0.000 description 7
- 239000003507 refrigerant Substances 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Coils Of Transformers For General Uses (AREA)
- Transformer Cooling (AREA)
Description
【考案の詳細な説明】
本考案は、変圧器、リアクトル等の油入電気機
器に関するものである。[Detailed Description of the Invention] The present invention relates to oil-filled electrical equipment such as transformers and reactors.
一般に油入電気機器においては、電気機器本体
で発生した熱を絶縁油に伝達させ、絶縁油を放熱
器に流通させて放熱させることによりケース内に
収納された電気機器本体を冷却している。しかし
電気機器本体の巻線内部は絶縁油に直接接触する
部分よりも高温になる上に、その熱が絶縁油に伝
達されにくいため、巻線内部の冷却が十分に行な
われず、巻線内部の絶縁物が熱により劣化するこ
とがあつた。そこで実開昭54−59110号公報に示
されるように、両端部が巻線の両側に突出するよ
うにして巻線の内部に筒状の集熱体を配置し、突
出した両端部にヒートパイプを取付けて巻線の内
部を冷却するという技術が提案された。しかしな
がらこの技術ではヒートパイプが取付けられた集
熱体の端部付近の熱は放熱できるものの、実際に
は巻線の内部まで効率良く冷却することができな
いという問題があつた。これは集熱体の巻線の内
部に配置された部分は、ヒートパイプに直接接触
していないため、ある程度の熱伝達作用は果たす
ものの、ヒートパイプへの熱伝達を良好に行なわ
せる集熱体としての作用はほとんど果たしていな
いからである。またこの技術では、筒状の集熱体
を巻線の内部に配置しているため、集熱体によつ
て巻線内部に閉ループが形成されて、巻線の電気
的な特性が影響を受けるという問題があつた。ま
た巻線内部にヒートパイプを挿入することにより
巻線内部の熱を電気機器のケースの外部に導いて
巻線の冷却効率を高めることが提案された。しか
しヒートパイプは文字通りパイプ状に形成されて
いて巻線との接触面積が少なく、巻線からヒート
パイプへの熱伝達が十分に行なわれないため所期
の放熱効果が得られていなかつた。 Generally, in oil-filled electrical equipment, the heat generated in the electrical equipment body is transferred to insulating oil, and the insulating oil is circulated through a radiator to radiate the heat, thereby cooling the electrical equipment body housed in a case. However, the inside of the winding of an electrical device is hotter than the part that comes into direct contact with the insulating oil, and that heat is not easily transferred to the insulating oil, so the inside of the winding is not cooled sufficiently, and the inside of the winding is heated. Insulators sometimes deteriorated due to heat. Therefore, as shown in Japanese Utility Model Application Publication No. 54-59110, a cylindrical heat collector is placed inside the winding so that both ends protrude on both sides of the winding, and heat pipes are placed between the two protruding ends. A technique was proposed in which the inside of the winding was cooled by attaching a However, although this technique can radiate heat near the end of the heat collector to which the heat pipe is attached, there is a problem in that it is not actually possible to efficiently cool the inside of the winding. This is because the part of the heat collector arranged inside the windings is not in direct contact with the heat pipe, so although it does perform some heat transfer action, the heat collector does not allow good heat transfer to the heat pipe. This is because it does not have much of an effect. In addition, with this technology, a cylindrical heat collector is placed inside the winding, so the heat collector forms a closed loop inside the winding, which affects the electrical characteristics of the winding. There was a problem. It has also been proposed to increase the cooling efficiency of the winding by inserting a heat pipe inside the winding to guide the heat inside the winding to the outside of the case of the electrical device. However, since the heat pipe is literally formed into a pipe shape, the contact area with the winding is small, and heat is not sufficiently transferred from the winding to the heat pipe, so that the desired heat dissipation effect cannot be obtained.
本考案の目的は、ヒートパイプへの熱伝達を良
好にして巻線の冷却効率を高めた油入電気機器を
提供することにある。 An object of the present invention is to provide an oil-filled electrical device that improves heat transfer to a heat pipe and improves winding cooling efficiency.
本考案は、上記問題点を解消するために、ケー
ス内に絶縁油とともに電気機器本体を収納してな
る油入電気機器において、板状材料からなる断面
が略Ｃ字形を呈する集熱体を電気機器本体の巻線
内部に配設し、この集熱体に添わせて閉ループを
形成しないように螺旋状に成形されたヒートパイ
プを接合した。そして、このヒートパイプの一端
をケースの外部に導出した。 In order to solve the above-mentioned problems, the present invention has been developed to install a heat collector having a substantially C-shaped cross section made of a plate-like material in an oil-filled electrical equipment in which the main body of the electrical equipment is housed together with insulating oil in a case. A heat pipe formed in a spiral shape was placed inside the winding of the main body of the device and joined to the heat collector so as not to form a closed loop. Then, one end of this heat pipe was led out to the outside of the case.
以下図示の実施例により本考案の油入電気機器
を詳細に説明する。 The oil-filled electrical equipment of the present invention will be explained in detail below with reference to the illustrated embodiments.
第１図乃至第３図は油入変圧器に本考案を適用
した実施例を示したもので、第１図において１は
上端開口部がカバー２により気密且つ液密に閉じ
られた変圧器ケース、３はケース１の側壁に取付
けられた放熱器である。ケース１内には絶縁油４
とともに変圧器本体５が収納され、巻線６の端部
はカバー２に取付けられた低圧ブツシング７及び
高圧ブツシング８にそれぞれ口出線９及び９′に
より接続されている。１０は上端がカバー２を貫
通してケース１の外部に導出され、下端部側が巻
線６内に挿入されたヒートパイプで、このヒート
パイプのケース外に突出した端部には放熱フイン
Ｆが取付けられている。 Figures 1 to 3 show an embodiment in which the present invention is applied to an oil-immersed transformer. , 3 are heat sinks attached to the side walls of the case 1. Insulating oil 4 inside case 1
A transformer main body 5 is housed therein, and the ends of the winding 6 are connected to a low voltage bushing 7 and a high voltage bushing 8 attached to the cover 2 by lead wires 9 and 9', respectively. 10 is a heat pipe whose upper end passes through the cover 2 and is led out to the outside of the case 1, and whose lower end is inserted into the winding 6, and a heat dissipation fin F is provided at the end of this heat pipe that protrudes outside the case. installed.
第２図に示したように、巻線６は内側に位置す
る低圧巻線６１と、低圧巻線６１の外側に同心的
に配置された高圧巻線６２とからなり、低圧巻線
６１の内側の窓部６１ａに鉄心の脚部が挿入され
る。そして低圧巻線６１の外周及び高圧巻線６２
の内周にはそれぞれ適宜の厚さを有するように巻
回された主絶縁物６３及び６４が配設され、両主
絶縁物６３，６４の間の間隙に集熱体１１ととも
にヒートパイプ１０が挿入されている。更に詳細
に述べると、第３図に示すように、集熱体１１
は、銅やアルミニウム等の熱伝導性の良好な材料
からなる比較的薄い金属板を、閉ループを形成し
ないようにＣ字形に成形したものからなつてお
り、この集熱体１１の内径寸法は、低圧巻線６１
の外周の主絶縁物６３の外周面に密接して嵌合す
る大きさに設定されている。また集熱体１１の軸
方向の長さは、巻線６の巻回軸方向の寸法に略等
しくなるように選定されている。ヒートパイプ１
０は、その端部１０ａが集熱体１１の周方向の一
端の下端部１１ａ付近に位置するように設けられ
て集熱体１１の外周に添わせて螺旋状に巻き付け
られ、半田付けやろう付け等の適宜の手段により
集熱体１１に伝熱的に接合されている。ヒートパ
イプ１０及び集熱体１１が閉ループを形成しない
ようにするため、ヒートパイプ１０は集熱体１１
の外周を完全には１周しないように設けられ、ヒ
ートパイプ１０の螺旋状に巻かれた部分の上端１
０ｂは集熱体１１の周方向の他端の上端部１１ｂ
付近から上方に巻線の巻回軸と平行に立上るよう
に折曲げられている。そしてヒートパイプ１０の
集熱体１１の上端部から立上つた立上り部１０ｃ
の上端が第１図に示したようにカバー２を貫通し
て外部に導出されている。 As shown in FIG. 2, the winding 6 consists of a low voltage winding 61 located inside and a high voltage winding 62 concentrically arranged outside the low voltage winding 61. The leg portion of the iron core is inserted into the window portion 61a. And the outer periphery of the low voltage winding 61 and the high voltage winding 62
Main insulators 63 and 64 are arranged on the inner periphery of the main insulators 63 and 64, respectively, which are wound to have appropriate thicknesses, and the heat pipe 10 is placed together with the heat collector 11 in the gap between the main insulators 63 and 64. It has been inserted. More specifically, as shown in FIG.
The heat collector 11 is made of a relatively thin metal plate made of a material with good thermal conductivity such as copper or aluminum and formed into a C shape so as not to form a closed loop.The inner diameter of the heat collector 11 is as follows. Low voltage winding 61
The main insulator 63 is sized to closely fit into the outer peripheral surface of the main insulator 63 on the outer periphery of the main insulator 63 . Further, the length of the heat collector 11 in the axial direction is selected to be approximately equal to the dimension of the winding 6 in the winding axis direction. heat pipe 1
0 is provided so that its end 10a is located near the lower end 11a of one end in the circumferential direction of the heat collector 11, is spirally wound along the outer periphery of the heat collector 11, and is soldered or soldered. It is thermally connected to the heat collector 11 by appropriate means such as attachment. In order to prevent the heat pipe 10 and the heat collector 11 from forming a closed loop, the heat pipe 10 is connected to the heat collector 11.
The upper end 1 of the spirally wound portion of the heat pipe 10
0b is the upper end 11b of the other end in the circumferential direction of the heat collector 11
It is bent upward from the vicinity so that it stands parallel to the winding axis of the winding. A rising portion 10c of the heat pipe 10 rises from the upper end of the heat collector 11.
As shown in FIG. 1, the upper end of the cover 2 passes through the cover 2 and is led out.
上記の油入電気機器において、運転により巻線
の温度が上昇した場合、巻線で発生した熱は集熱
体１１に伝達され、ヒートパイプ１０の集熱体１
１に巻付けられた部分が加熱される。これにより
ヒートパイプ１０の内部の冷媒が気化し、気化し
た冷媒はパイプ内に上昇してカバー２の上方に突
出したヒートパイプの上端部に達する。このよう
にして冷媒により運ばれた熱はヒートパイプ１０
の上端部に設けた放熱フインＦ等を通して放散さ
れるため冷媒は再び液化し、ヒートパイプ１０の
下端部に戻る。このようにして冷媒が循環し、巻
線内部の熱の直接ケース外に放出させて巻線を効
率良く冷却する。また集熱体１１は低高圧巻線間
に介在しているため、巻線に雷サージが侵入した
場合には混触防止板の役目を果たし、低圧巻線へ
の雷サージの侵入を防止することができる。 In the oil-filled electrical equipment described above, when the temperature of the winding increases due to operation, the heat generated in the winding is transferred to the heat collector 11 of the heat pipe 10.
The part wrapped around 1 is heated. As a result, the refrigerant inside the heat pipe 10 is vaporized, and the vaporized refrigerant rises into the pipe and reaches the upper end of the heat pipe that protrudes above the cover 2 . The heat carried by the refrigerant in this way is transferred to the heat pipe 10
Since the refrigerant is dissipated through the heat radiation fins F and the like provided at the upper end, the refrigerant liquefies again and returns to the lower end of the heat pipe 10. In this way, the refrigerant circulates, and the heat inside the windings is directly released to the outside of the case, thereby efficiently cooling the windings. In addition, since the heat collector 11 is interposed between the low and high voltage windings, when lightning surge enters the windings, it serves as a contact prevention plate and prevents lightning surges from entering the low voltage windings. I can do it.
上記実施例ではヒートパイプを１本だけ設けた
が、ヒートパイプの本数及び配設位置は任意であ
る。またヒートパイプを複数ターン巻付ける場合
にはヒートパイプの途中に絶縁管を介在させたも
のを用いて、この絶縁管部分を集熱体の周方向端
部間に位置させれば集熱体による短絡回路の形成
を防ぐことができ、放熱効率を更に高め得る。更
に上記実施例では、集熱体の軸長寸法を巻線の軸
長寸法に略等しくしたが、両者の寸法関係は任意
である。また場合によつてはヒートパイプを集熱
体の内周面に接合するようにすることもできる。 In the above embodiment, only one heat pipe was provided, but the number and arrangement position of the heat pipes are arbitrary. In addition, when winding a heat pipe with multiple turns, use a heat pipe with an insulating tube interposed in the middle, and place this insulating tube section between the circumferential ends of the heat collector. The formation of short circuits can be prevented and heat dissipation efficiency can be further improved. Further, in the above embodiments, the axial length of the heat collector is approximately equal to the axial length of the winding, but the dimensional relationship between the two may be arbitrary. Further, depending on the case, the heat pipe may be joined to the inner circumferential surface of the heat collector.
以上のように本考案によれば、断面が略Ｃ字形
を呈する集熱体に螺旋状に成形されたヒートパイ
プを接合して巻線内部にヒートパイプを配設する
ようにしたので、ヒートパイプへの熱伝達を良好
にして巻線内部の熱を直接ケース外に放出させる
ことができ、巻線の冷却効率を著しく高めること
ができる利点がある。 As described above, according to the present invention, a heat pipe formed in a spiral shape is joined to a heat collector having a substantially C-shaped cross section, and the heat pipe is disposed inside the winding. This has the advantage that the heat inside the winding can be directly released to the outside of the case by improving heat transfer to the winding, and the cooling efficiency of the winding can be significantly increased.
またヒートパイプは螺旋状にして集熱体に添わ
せて接合されているので、少ない数のヒートパイ
プを用いて効率良く冷却を行うことができる上、
ヒートパイプ内の冷媒の循環を円滑にしてヒート
パイプの熱伝達機能を十分に発揮させることがで
きる。 In addition, since the heat pipes are spirally connected to the heat collector, cooling can be performed efficiently using a small number of heat pipes.
It is possible to smoothly circulate the refrigerant in the heat pipe and fully utilize the heat transfer function of the heat pipe.
更に本考案においては、集熱体として断面が略
Ｃ字形を呈する集熱体を用い、またヒートパイプ
を閉ループを形成しないように螺旋状に成形して
いるので、巻線の内部に集熱体及びヒートパイプ
を配置した場合でも巻線の電気的な特性に何等影
響を与えることがない。 Furthermore, in the present invention, a heat collector whose cross section is approximately C-shaped is used, and since the heat pipe is formed in a spiral shape so as not to form a closed loop, the heat collector is inside the winding. Even when heat pipes are arranged, the electrical characteristics of the windings are not affected in any way.
第１図は本考案を油入電気機器に適用した実施
例を一部断面して示した正面図、第２図は第１図
の変圧器本体の巻線部分の断面図、第３図はヒー
トパイプを取付けた集熱体の一例を示す斜視図で
ある。
１……ケース、２……カバー、４……絶縁油、
５……変圧器本体、６……巻線、１０……ヒート
パイプ、１１……集熱体。
Fig. 1 is a partially sectional front view of an embodiment in which the present invention is applied to oil-filled electrical equipment, Fig. 2 is a sectional view of the winding portion of the transformer body shown in Fig. 1, and Fig. 3 is FIG. 2 is a perspective view showing an example of a heat collector to which a heat pipe is attached. 1...Case, 2...Cover, 4...Insulating oil,
5... Transformer main body, 6... Winding wire, 10... Heat pipe, 11... Heat collector.
Claims (1)
納してなる油入電気機器において、板状材料か
らなる断面が略Ｃ字形を呈する集熱体が前記電
気機器本体の巻線内部に配設され、該集熱体に
添わせて閉ループを形成しないように螺旋状に
成形されたヒートパイプが接合されており、前
記ヒートパイプの一端が前記ケースの外部に導
出されていることを特徴とする油入電気機器。 (2) 前記集熱体は前記巻線内部に該巻線と同心的
に配置されている実用新案登録請求の範囲第１
項に記載の油入電気機器。[Scope of Claim for Utility Model Registration] (1) In an oil-filled electrical device in which the main body of the electrical device is housed together with insulating oil in a case, a heat collector having a substantially C-shaped cross section made of a plate-like material is used in the electrical device. A heat pipe is arranged inside the winding of the main body and is connected to the heat collector in a spiral shape so as not to form a closed loop, and one end of the heat pipe is led out to the outside of the case. Oil-filled electrical equipment characterized by: (2) The heat collector is disposed inside the winding concentrically with the winding. Claim 1 of Utility Model Registration
Oil-filled electrical equipment as described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981078444U JPS6314410Y2 (en) | 1981-05-29 | 1981-05-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981078444U JPS6314410Y2 (en) | 1981-05-29 | 1981-05-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57191022U JPS57191022U (en) | 1982-12-03 |
| JPS6314410Y2 true JPS6314410Y2 (en) | 1988-04-22 |
Family
ID=29874074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981078444U Expired JPS6314410Y2 (en) | 1981-05-29 | 1981-05-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6314410Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019092909A1 (en) * | 2017-11-07 | 2019-05-16 | 株式会社日立産機システム | Oil-filled transformer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5459110U (en) * | 1977-09-30 | 1979-04-24 |
-
1981
- 1981-05-29 JP JP1981078444U patent/JPS6314410Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019092909A1 (en) * | 2017-11-07 | 2019-05-16 | 株式会社日立産機システム | Oil-filled transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57191022U (en) | 1982-12-03 |
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