JP4018619B2 - High current water-cooled cable terminal - Google Patents

High current water-cooled cable terminal Download PDF

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JP4018619B2
JP4018619B2 JP2003358383A JP2003358383A JP4018619B2 JP 4018619 B2 JP4018619 B2 JP 4018619B2 JP 2003358383 A JP2003358383 A JP 2003358383A JP 2003358383 A JP2003358383 A JP 2003358383A JP 4018619 B2 JP4018619 B2 JP 4018619B2
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side terminal
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JP2005124338A (en
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澄男 松盛
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Navitas Co Ltd
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Description

本発明は、電気機器に対し給電するための水冷ケーブル端子、特に、大電流を供給するときに最適な水冷ケーブル端子に関するものである。   The present invention relates to a water-cooled cable terminal for supplying power to an electric device, and more particularly to a water-cooled cable terminal that is optimal when supplying a large current.

一般に、適宜の電気機器（電気炉、誘導加熱装置或いは電磁誘導装置など）に電源部より電源ケーブルを介在させて給電するが、例えば、電気機器に２０００Ａ以上の大電流を供給する場合には、電路スペースの縮小、配線費用の削減を目的に、導体からの発生熱を冷却・除去するためにケーブル自体を水冷構造にした水冷ケーブルが採用される。この水冷ケーブルの端子部は、通常、フランジ型或いは羽子板型の形状となっており、これを電気機器側の端子にボルト止め等の手段で接続している。図７に電気機器と水冷ケーブルの取付け状態を略示している。
従来の水冷ケーブル端子としては、例えば特許文献１及び特許文献２に示すものが知られているが、これらの特許文献においては、ケーブルホース嵌入部とは別体にした羽子板型端子部は、特に絶縁体で直接被覆されておらず、露出状態の充電部となっていた。これは、水冷ケーブルの取替えに際してケーブル端子の確実な取付け・取外しを可能にする必要性から、この端子部を直接絶縁体で被覆することができないという理由による。そこで、従来においては、電気機器の据付場所の環境条件や安全性の面から、この露出充電部をそのままの状態で使用できない場合には、端子部を絶縁体で覆う対策が採られていた。
特開平９−１６３５８１号公報 特開平１０−９４１５４号公報 In general, power is supplied to a suitable electric device (electric furnace, induction heating device, electromagnetic induction device, etc.) from a power supply unit via a power cable. For example, when supplying a large current of 2000 A or more to an electric device, For the purpose of reducing the electric circuit space and reducing the wiring cost, a water-cooled cable having a water-cooled structure is used to cool and remove the heat generated from the conductor. The terminal part of this water-cooled cable is usually in the form of a flange or a battledore, and this is connected to the terminal on the electrical equipment side by means such as bolting. FIG. 7 schematically shows the attachment state of the electrical equipment and the water-cooled cable.
As conventional water-cooled cable terminals, for example, those shown in Patent Document 1 and Patent Document 2 are known, but in these Patent Documents, a battledore terminal portion separated from a cable hose insertion portion is particularly used. It was not directly covered with an insulator and was an exposed charged part. This is because of the need to allow for secure attachment and removal of the cable terminal during replacement of water cooled cables, by reason earthenware pots have the inability to coat the terminals with direct insulator. Therefore, conventionally, in view of the environmental conditions and safety of the installation location of the electric equipment, when the exposed charging part cannot be used as it is, a measure has been taken to cover the terminal part with an insulator.
JP-A-9-163581 JP-A-10-94154

上記のように露出充電部を絶縁体で覆う場合には、端子部を包囲する囲いを設け、その内部に樹脂類を充填して行う方法が一般的であるが、水冷ケーブルの端子は大きいため、包囲絶縁体の取付けのための広いスペースが必要となると共に、該絶縁体を形成するための比較的大掛かりな作業が不可欠となる。しかも、水冷ケーブルの交換時には、この絶縁体覆いを一旦取り除き、ケーブル取替え後に再度端子部を被覆する面倒な作業が必要となる。
本発明は、このような従来の水冷ケーブル端子部の問題点を解消することを課題とするもので、露出充電部が存在せず、過大な絶縁体覆いを必要としない簡潔な構造であって、水冷ケーブルの取り替えも容易な大電流用水冷ケーブル端子構造を提供するものである。 When the exposed charging part is covered with an insulator as described above, it is common to provide an enclosure that surrounds the terminal part and fill it with resin, but the water-cooled cable has a large terminal. In addition, a large space for mounting the surrounding insulator is required, and a relatively large-scale operation for forming the insulator is indispensable. In addition, when the water-cooled cable is replaced, it is necessary to remove the insulator cover once and to cover the terminal portion again after replacing the cable.
An object of the present invention is to eliminate such problems of the conventional water-cooled cable terminal portion, and there is no exposed charging portion and a simple structure that does not require an excessive insulator cover. The present invention provides a large-current water-cooled cable terminal structure that allows easy replacement of a water-cooled cable.

上記課題を解決するための本発明の要旨とするところは以下の通りである。
（１）内部後端寄りに水冷電線が嵌入される水冷電線嵌入部が設けられた筒状の端子本体と、端子本体の先端面から軸方向に延びるとともに雄ねじが外周面に切られており、端子本体より小径のねじ込み部とからなり、前記端子本体の前部と前記ねじ込み部とを冷却水孔が貫通する水冷ケーブル側端子、および後端寄り内部に前記雄ねじと螺合する雌ねじが切られており、前記冷却水孔と連通する中心孔を有し、前端寄り外周面が絶縁体で被覆され、中心孔の前部に電気機器の中空水冷導体が嵌入される筒状の電気機器側端子を備えた水冷ケーブル端子構造であって、
前記端子本体の外周面に本体後端から軸方向に延びる複数の切り欠き部が周方向に間隔をおいて設けられており、前記冷却水孔の後端部と切り欠き部の先端部とが連通孔を介して連通し、前記端子本体の外径と電気機器側端子の後端部の外径がほぼ等しく、前記端子本体の前端面と電気機器側端子の後端面とが前記雄ねじと雌ねじとの螺合により密着するようにして水冷ケーブル側端子と電気機器側端子とが結合され、前記電気機器側端子の先端部が前記絶縁体を介して電気機器の外壁に取り付けられ、電気機器側端子の電気機器から突出する部分と前記水冷ケーブル側端子の全体を被覆する絶縁ホースがスライド可能に設けられていることを特徴とする水冷ケーブル端子構造。
（２）内部後端寄りに水冷電線が嵌入される水冷電線嵌入部が設けられた筒状の端子本体と、端子本体の先端面から軸方向に延びるとともに、雄ねじが外周面に切られており、端子本体より小径のねじ込み部とからなり、前記端子本体の前部と前記ねじ込み部とを冷却水孔が貫通する水冷ケーブル側端子、および後端寄り内部に前記雄ねじと螺合する雌ねじが切られており、前記冷却水孔と連通する中心孔を有し、複数の中空水冷導体を有するヘッダーが前端に設けられており、前端寄り外周面が絶縁体で被覆された筒状の電気機器側端子を備えた水冷ケーブル端子構造であって、
前記端子本体の外周面に本体後端から軸方向に延びる複数の冷却水バイパスが周方向に間隔をおいて設けられており、前記冷却水孔の後端部と冷却水バイパスの先端部とが連通孔を介して連通し、前記端子本体の外径と電気機器側端子の後端部の外径がほぼ等しく、前記端子本体の前端面と電気機器側端子の後端面とが前記雄ねじと雌ねじとの螺合により密接するようにして水冷ケーブル側端子と電気機器側端子とが結合され、前記電気機器側端子の先端部が前記絶縁体を介して電気機器の外壁に取り付けられ、電気機器側端子の電気機器から突出する部分と前記水冷ケーブル側端子の全体を被覆する絶縁ホースがスライド可能に設けられていることを特徴とする水冷ケーブル端子構造。
（３）電気機器側端子と水冷ケーブル側端子の接合面と、両端子を包囲被覆した絶縁ホースを、前記接合面を挟んだ両側位置でホースバンドにて径方向に締め付け固定したことを特徴とする（１）又は（２）に記載の水冷ケーブル端子構造。 The gist of the present invention for solving the above problems is as follows.
(1) A cylindrical terminal main body provided with a water-cooled electric wire fitting portion into which a water-cooled electric wire is fitted near the inner rear end, and extending in the axial direction from the front end surface of the terminal main body and a male screw being cut on the outer peripheral surface, A water-cooled cable side terminal through which a cooling water hole penetrates the front part and the screwed part of the terminal body, and a female screw that is screwed with the male screw inside the rear end are cut off. A cylindrical electric equipment side terminal having a central hole communicating with the cooling water hole, an outer peripheral surface near the front end being covered with an insulator, and a hollow water-cooled conductor of the electric equipment is fitted in a front portion of the central hole A water-cooled cable terminal structure comprising:
A plurality of notches extending in the axial direction from the rear end of the main body are provided on the outer peripheral surface of the terminal body at intervals in the circumferential direction, and the rear end of the cooling water hole and the front end of the notch are The outer diameter of the terminal body is substantially equal to the outer diameter of the rear end portion of the electric device side terminal, and the front end surface of the terminal main body and the rear end surface of the electric device side terminal are the male screw and the female screw. The water-cooled cable side terminal and the electric device side terminal are coupled so as to be in close contact with each other, and the tip of the electric device side terminal is attached to the outer wall of the electric device via the insulator, and the electric device side water-cooled cable terminal structure an insulating hose covering the whole of the a portion projecting from the electrical equipment terminals water cooling cable terminal is characterized in that is provided slidably.
(2) A cylindrical terminal main body provided with a water-cooled electric wire insertion portion near the rear end of the interior, an axial direction extending from the front end surface of the terminal main body, and a male screw cut into the outer peripheral surface A water-cooled cable side terminal through which a cooling water hole penetrates the front part of the terminal body and the screwed part, and a female screw threadedly engaged with the male screw inside the rear end. A cylindrical electric device side having a central hole communicating with the cooling water hole, a header having a plurality of hollow water cooling conductors provided at the front end, and an outer peripheral surface near the front end covered with an insulator A water-cooled cable terminal structure with terminals,
A plurality of cooling water bypasses extending in the axial direction from the rear end of the main body are provided on the outer peripheral surface of the terminal body at intervals in the circumferential direction, and a rear end portion of the cooling water hole and a front end portion of the cooling water bypass are provided. The outer diameter of the terminal body is substantially equal to the outer diameter of the rear end portion of the electric device side terminal, and the front end surface of the terminal main body and the rear end surface of the electric device side terminal are the male screw and the female screw. The water-cooled cable side terminal and the electric device side terminal are coupled so as to be in close contact with each other, and the tip of the electric device side terminal is attached to the outer wall of the electric device via the insulator, and the electric device side A water-cooled cable terminal structure , wherein an insulating hose that covers a portion of the terminal protruding from the electric device and the entire terminal of the water-cooled cable side is slidably provided .
(3) The joint surface of the electric equipment side terminal and the water-cooled cable side terminal, and the insulating hose surrounding and covering both terminals are fastened and fixed in a radial direction by a hose band at both sides of the joint surface. The water-cooled cable terminal structure according to (1) or (2).

本発明の水冷ケーブル端子構造によれば、従来問題となっていた露出充電部が存在しない構造としたことから、端子部全体を絶縁体で被覆する必要が無くなり、そのための広いスペースや面倒な被覆作業自体が不要となる。また、絶縁体被覆の必要性が無くなる結果、水冷ケーブルの取替えも容易となる利点もある。 According to the water-cooled cable terminal structure of the present invention, since there is no exposed charged part, which has been a problem in the past, it is not necessary to cover the entire terminal part with an insulator, and a wide space and troublesome covering for that purpose is eliminated. The work itself becomes unnecessary. In addition, there is an advantage that the water-cooled cable can be easily replaced as a result of eliminating the need for the insulator coating.

以下、本発明の好ましい実施形態を図面に基づいて説明する。
図１は、大電流用水冷ケーブルのなかで冷却水量が比較的少なめ（２０〜４０リットル／分）のケーブルに適用するに適した水冷ケーブル側端子の一例を示し、図２は、該水冷ケーブル側端子と組み合せる電気機器側端子の例であり、図３は、これらの水冷ケーブル側端子および電気機器側端子を組合せて形成したケーブル端子部の電気機器への取付け状態を示すものであり、図７における水冷ケーブル端子のａ部を示している。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
Figure 1 shows an example of a water-cooled cable terminal which is suitable for application to the cable of a relatively fewer cooling water is among the water-cooled cables for large current (20 to 40 l / min), FIG. 2, the water-cooled an example of the electric device side terminal combined with the cable-side terminal, FIG. 3 shows a mounted state of the electrical equipment of a cable terminal portion formed by combination of these water-cooled cable side terminal and the electrical equipment side terminal The a part of the water cooling cable terminal in FIG. 7 is shown.

図１（ａ）（ｂ）に示す水冷ケーブル側端子１は、中空の端子本体２とその一端に一体的に突設される本体よりも径小のねじ込み部３とからなる。端子本体２およびねじ込み部３の中心軸方向には、端子本体側を大径とした冷却水孔４が形成され、ねじ込み部３の外周には雄ねじ３ａが設けられている。また、端子本体２の外周には、図１（ｂ）に示すように、他端から軸方向に切り欠き部５が設けられている。該切り欠き部５は端子本体２の円周方向に等角に４箇所設けられており、切り欠き部５の本体内の一端は半径方向に穿設した連通孔６に続いている。更に、端子本体２のねじ込み部３と反対側の中空部は水冷電線を嵌入する水冷電線嵌入部１８となっており、隔壁１０により該水冷ケーブル嵌入部１８と冷却水の水路とが分けられている。隔壁１０は端子本体２と同一材質である。 A water-cooled cable side terminal 1 shown in FIGS. 1A and 1B includes a hollow terminal main body 2 and a screwed portion 3 having a diameter smaller than that of a main body protruding integrally at one end thereof. A cooling water hole 4 having a large diameter on the terminal body side is formed in the central axis direction of the terminal body 2 and the screwed portion 3, and a male screw 3 a is provided on the outer periphery of the screwed portion 3. Moreover, as shown in FIG.1 (b), the notch part 5 is provided in the outer periphery of the terminal main body 2 from the other end to the axial direction. Cutout portions 5 are provided at four places equiangularly in the circumferential direction of the terminal body 2, one end of the body of the cutout portion 5 is followed communicating hole 6 which is drilled radially. Further, the hollow portion of the threaded portion 3 of the terminal body 2 opposite is a water-cooled electric wire insertion portion 1 8 to fit the water-cooled electric wire, the water-cooling cable insertion portion 18 and the water passage of the cooling water is divided by the partition wall 10 ing. The partition wall 10 is made of the same material as the terminal body 2.

一方、図２（ａ）（ｂ）に示す電気機器側端子７は、中空状に形成され、中心軸方向に冷却水の通る中心孔８を有し、該中心孔８には雌ねじ部９が刻設され、前述の水冷ケーブル側端子本体２のねじ込み部３に刻設されている雄ねじ部３ａに螺合するようになっている。電気機器側端子７の一端（図では左端）面は、端子本体側に当接される。他端側寄りの外周には絶縁体１１(絶縁テープ或いは絶縁シート)を被覆(巻き付け)するため僅かに外径を絞っている。 On the other hand, the electrical equipment side terminal 7 shown in FIG. 2 (a) (b) is formed in a hollow shape, has a central hole 8 passing through the central axis of the cooling water, the internal thread portion 9 in the center hole 8 It is engraved and screwed into a male screw portion 3a engraved in the screwed portion 3 of the water-cooled cable side terminal body 2 described above . One end (left end in the figure) surface of the electric device side terminal 7 is brought into contact with the terminal body side. In order to cover (wrap) the insulator 11 (insulating tape or insulating sheet) on the outer periphery near the other end, the outer diameter is slightly reduced.

図１および図２に示す水冷ケーブル側端子と電気機器側端子を組合せて所望の電気機器へ装着して水冷ケーブルを取り付ける場合を図３にて説明する。まず、電気機器１２の所定位置に、図２に示す絶縁体１１を被覆した電気機器側端子７をその一部を突出させた状態で取付ける。該電気機器側端子７には電気機器の中空水冷導体１３が装着される。次に、水冷ケーブル側端子１の本体２における先端にあるねじ込み部３の雄ねじ３ａを、電気機器側端子７の雌ねじ９にねじ込むことで両端子を接続する。両端子は端面相互が密着する程度に締め付けられ、両者の電気的接続は、ねじ部での螺合および端面相互の接合により確実に果たされる。
両端子の接合が完了した後、水冷ケーブル側端子１の外周に保持されていた絶縁ホース１５を矢印方向（図面の右方）に、電気機器側端子７を覆うとともに電気機器１２に絶縁ホースの先端が当接するまでスライドさせる。絶縁ホース１５のスライド装着が終了したならば、ホースバンド１６にて両端子の接合面の両側を固定する。該ホースバンド１６による締め付けにより、後述する冷却水の漏洩防止とねじ接合部の廻り止めの効果を発揮させる。なお、１７は水冷ケーブル側端子１の他端側中心部に取付ける水冷電線、１８は前記水冷電線１７を嵌入する水冷電線嵌入部である。 The case where the water cooling cable side terminal shown in FIG. 1 and FIG. 2 and the electric equipment side terminal are combined and mounted on a desired electric equipment and the water cooling cable is attached will be described with reference to FIG. First, a predetermined position of the electric device 12, mounting an electrical device-side terminals 7 coated with insulator 11 shown in FIG. 2 in a state of being protruded part thereof. The hollow water-cooled conductor 13 of the electric device is mounted on the electric device side terminals 7. Next, both terminals are connected by screwing the male screw 3 a of the screw-in portion 3 at the tip of the main body 2 of the water-cooled cable-side terminal 1 into the female screw 9 of the electric device-side terminal 7. Both terminals are tightened to such an extent that the end faces are in close contact with each other, and the electrical connection between them is reliably achieved by screwing at the threaded portion and joining between the end faces.
After joining of the terminals has been completed, the water-cooled cable side insulating hose 15 held in the outer periphery of the terminal 1 in the arrow direction (right side of the drawing), an insulating hose to the electric device 12 to cover the electric equipment-side terminals 7 Slide until the tip touches. If the slide mounting of the insulating hose 15 has been completed, to fix the both side of the joint surface of the both terminals in a hose band 16. By tightening with the hose band 16, the effect of preventing the leakage of the cooling water described later and preventing the screw joint from rotating is exhibited. In addition, 17 is a water- cooled electric wire attached to the center part of the other end of the water-cooled cable side terminal 1, and 18 is a water-cooled electric wire insertion part into which the water-cooled electric wire 17 is inserted .

図３に示す水冷ケーブル側端子部においては、絶縁ホース１５内を流動してくる冷却水は、水冷ケーブル側端子１の切り欠き部５から連通孔６を通って中心部の冷却水孔４に至り、電気機器側端子７の中心孔８を通って中空水冷導体１３内に導入される。この例では例えば、電圧１１００Ｖ、電流２５００Ａ、冷却水量２０リットル／分という仕様で使用したが、電気的な接続、冷却水の漏れ防止、及び水冷ケーブルの取替え等において全く問題は無く、充分目的を達成できた。 In the water-cooled cable side terminal portion shown in FIG. 3, the cooling water flowing in the insulating hose 15 passes from the notch portion 5 of the water-cooled cable side terminal 1 to the cooling water hole 4 in the center through the communication hole 6. Finally, it is introduced into the hollow water-cooled conductor 13 through the central hole 8 of the electric equipment side terminal 7. In this example, for example, the voltage 1100 V, current 2500 A, and cooling water amount 20 liters / min were used. However, there were no problems in electrical connection, cooling water leakage prevention, water cooling cable replacement, etc. I was able to achieve it.

図４〜図６は、本発明の他の実施形態例を示すもので、大電流用水冷ケーブルのなかで冷却水量の多いケーブルに適用するに適したケーブル側端子構造の例である。この例における端子本体２２とその一端側のねじ込み部２３からなる水冷ケーブル側端子２１の基本的な構造は、図４（ａ）（ｂ）に示す如く、図１のものとほぼ同一であるが、その軸方向中心に形成した冷却水孔２４は、図１における冷却水孔４よりも口径（水路断面積）を大とし、約３倍以上の冷却水を流すことができるようにしていることと、断面構造において外周を直接切り欠かれておらず、軸方向に連通孔２４ｂまで貫通する冷却水バイパス２４ａとなっている点で異なっている。冷却水バイパス２４ａは連通孔２４ｂを経て冷却水孔２４に通じている。図４において、２３ａは雄ねじ、３５は水冷電線嵌入部である。
前記水冷ケーブル側端子２１の先端のねじ込み部に螺合する雌ねじ２７を有する電気機器側端子２５は、図５（ａ）（ｂ）に示す如く、図２のものとほとんど同一であり、中心軸方向に水路断面積を大とした中心孔２６を有し、外周の一部に絶縁体２８を被覆すると共に、機器側の一端部に大冷却水量に対応するためのヘッダー３０を備えている。 FIG. 4 to FIG. 6 show other embodiments of the present invention, and are examples of cable side terminal structures suitable for application to a cable with a large amount of cooling water among water cooling cables for large currents. The basic structure of the water-cooled cable side terminal 21 including the terminal main body 22 and the screw-in part 23 at one end thereof in this example is substantially the same as that of FIG. 1 as shown in FIGS. The cooling water hole 24 formed in the center in the axial direction has a larger diameter (cross-sectional area of the water channel) than the cooling water hole 4 in FIG. 1 so that the cooling water can flow about three times or more. When, not him directly cut deleting periphery in the cross-sectional structure, with the difference that is the cooling water bypass 24a that penetrates in the axial direction to the communication hole 24b. The cooling water bypass 24a communicates with the cooling water hole 24 through the communication hole 24b. In FIG. 4, 23a is a male screw and 35 is a water-cooled electric wire insertion part.
The electric equipment side terminal 25 having the female screw 27 screwed into the screwed portion at the tip of the water cooling cable side terminal 21 is almost the same as that shown in FIG. 2 as shown in FIGS. 5 (a) and 5 (b). has a central hole 26 in which the water passage cross-sectional area as large in the direction, as well as covering the insulator 28 in a part of the outer circumference, provided with a header 3 0 for corresponding to the large amount of cooling water to one end of the device side Yes.

水冷ケーブル側端子及び電気機器側端子を組合せて、所望の電気機器へ装着して水冷ケーブルを取り付ける場合を図６に示すが、その操作は図３の場合と同様である。水冷ケーブル側端子２１及び電気機器側端子２５のねじ込みによる接合が完了した後、水冷ケーブル側端子２１の外周に保持されていた絶縁ホース３３を矢印方向（図面の右方）に、電気機器側端子２５を覆うとともに電気機器２９に絶縁ホースの先端が当接するまでスライドさせる。絶縁ホース３３のスライド装着が終了したなら、ホースバンド３２にて両端子の接合面の両側を径方向に固定する。
冷却水の流動は、水冷ケーブル側端子２１の水路２４を経て電気機器側端子２５の中心孔２６を通ってヘッダー３０に入る。ヘッダー３０に入った冷却水は中空水冷導体３１内に導入され、冷却機能を果たす。この例では例えば、電圧１１００Ｖ、電流３５００Ａ、冷却水量１６０リットル／分という仕様で使用したが、電気的な接続、冷却水の漏れ防止、及び水冷ケーブルの取替え等において全く問題は無く、充分目的を達成できた。 In combination with a water-cooled cable terminal and the electrical device-side terminals, it is shown in Figure 6. If installing a water-cooled cable attached to the desired electrical equipment, the operation is similar to that of FIG. After joining by screwing a water-cooled cable terminal 21 and the electric appliance-side terminals 25 is completed, the water-cooled cable terminal 2 first insulating hose 33 held in the outer peripheral direction of the arrow (rightward in the drawing), the electrical equipment side The terminal 25 is covered and slid until the tip of the insulating hose contacts the electric device 29. When the slide mounting of the insulating hose 33 is completed, both sides of the joint surface of both terminals are fixed in the radial direction by the hose band 32.
The coolant flow enters the header 3 0 through the central hole 2 6 of the electrical device-side terminals 25 through the water passage 24 of the water-cooled cable side terminal 21. Header 3 0 Entered cooling water is introduced into the hollow water-cooled conductor 31 serves the cooling function. In this example, for example, a voltage of 1100 V, a current of 3500 A, and a cooling water amount of 160 liters / minute were used. However, there were no problems in electrical connection, cooling water leakage prevention, water cooling cable replacement, etc. I was able to achieve it.

大電流用水冷ケーブルのなかで冷却水量が比較的少ないケーブルに適用するに適したケーブル側端子の一例を示し、（ａ）は（ｂ）のＡ−Ａ断面、（ｂ）は側面図である。 An example of a cable-side terminal suitable for application to a cable with a relatively small amount of cooling water among large-current water-cooled cables is shown, (a) is an AA cross section of (b), and (b) is a side view. is there. 図１に示す水冷ケーブル側端子に組み合せる電気機器側端子の一例を示し、（ａ）は（ｂ）のＢ−Ｂ断面、（ｂ）は側面図である。 An example of the electric equipment side terminal combined with the water cooling cable side terminal shown in FIG. 1 is shown, (a) is a BB cross section of (b), (b) is a side view. 図１及び図２に示す水冷ケーブル側端子及び電気機器側端子を組合せ密着させて水冷ケーブル端子として使用する状態を示す断面図である。FIG. 3 is a cross-sectional view showing a state in which the water-cooled cable side terminal and the electric device-side terminal shown in FIGS. 大電流用水冷ケーブルのなかで冷却水量の多い水冷ケーブル端子の一例を示し、（ａ）は（ｂ）のＣ−Ｃ断面、（ｂ）は側面図である。 An example of a water-cooled cable terminal with a large amount of cooling water in the water-cooled cable for large current is shown, (a) is a CC cross section of (b), and (b) is a side view. 図４に示す水冷ケーブル側端子に組み合せる電気機器側端子の一例を示し、（ａ）は（ｂ）のＤ−Ｄ断面、（ｂ）は側面図である。 An example of the electric equipment side terminal combined with the water cooling cable side terminal shown in FIG. 4 is shown, (a) is DD cross section of (b), (b) is a side view. 図４及び図５に示す水冷ケーブル側端子及び電気機器側端子を組合せ密着させて水冷ケーブル端子として使用する状態を示す断面図である。FIG. 6 is a cross-sectional view showing a state in which the water-cooled cable side terminal and the electric device-side terminal shown in FIGS. 電気機器と水冷ケーブルの取付け状態を略示した全体図である。It is the whole figure which showed briefly the attachment state of an electric equipment and a water cooling cable.

符号の説明Explanation of symbols

１、２１ 水冷ケーブル側端子
２、２２ 端子本体
３、２３ ねじ込み部
３ａ、２３ａ 雄ねじ
４、２４ 冷却水孔
５ 切り欠き孔
６、２４b 連通孔
７、２５ 電気機器側端子
８、２６ 中心孔
９、２７ 雌ねじ
１０ 隔壁
１１、２８ 絶縁体
１２、２９ 電気機器
１３、３１ 中空水冷導体
１５、３３ 絶縁ホース
１６、３２ ホースバンド
１７、３４ 電線
１８、３５ 水冷電線嵌入部
２４a 冷却水バイパス
３０ ヘッダー 1,21 cooled cable terminal 2,22 terminal body 3, 23 threaded portion 3a, 23a male I Flip <br/> 4, 24 the cooling water hole 5 notched hole 6, 24b communicating hole 7, 25 electric device-side terminals 8 , 26 the central hole 9 and 27 females I Flip <br/> 10 partition wall 11, 28 insulator 12,29 electric devices 13, 31 hollow water-cooled conductors 15 and 33 insulated hoses 16,32 hose band 17, 34 electric wires 18 and 35 water-cooled wire fitting portion 24a coolant bypass 30 headers

Claims (3)

内部後端寄りに水冷電線が嵌入される水冷電線嵌入部が設けられた筒状の端子本体と、端子本体の先端面から軸方向に延びるとともに雄ねじが外周面に切られており、端子本体より小径のねじ込み部とからなり、前記端子本体の前部と前記ねじ込み部とを冷却水孔が貫通する水冷ケーブル側端子、および後端寄り内部に前記雄ねじと螺合する雌ねじが切られており、前記冷却水孔と連通する中心孔を有し、前端寄り外周面が絶縁体で被覆され、中心孔の前部に電気機器の中空水冷導体が嵌入される筒状の電気機器側端子を備えた水冷ケーブル端子構造であって、
前記端子本体の外周面に本体後端から軸方向に延びる複数の切り欠き部が周方向に間隔をおいて設けられており、前記冷却水孔の後端部と切り欠き部の先端部とが連通孔を介して連通し、前記端子本体の外径と電気機器側端子の後端部の外径がほぼ等しく、前記端子本体の前端面と電気機器側端子の後端面とが前記雄ねじと雌ねじとの螺合により密着するようにして水冷ケーブル側端子と電気機器側端子とが結合され、前記電気機器側端子の先端部が前記絶縁体を介して電気機器の外壁に取り付けられ、電気機器側端子の電気機器から突出する部分と前記水冷ケーブル側端子の全体を被覆する絶縁ホースがスライド可能に設けられていることを特徴とする水冷ケーブル端子構造。 A cylindrical terminal body provided with a water-cooled wire insertion part near the rear end of the interior, a cylindrical terminal body provided in the axial direction from the front end surface of the terminal body, and a male screw cut into the outer peripheral surface. A small-diameter threaded portion, a water-cooled cable side terminal through which a cooling water hole penetrates the front portion of the terminal body and the screwed portion, and a female screw that is screwed with the male screw inside the rear end, It has a central hole communicating with the cooling water hole, an outer peripheral surface near the front end is covered with an insulator, and a cylindrical electric device side terminal into which a hollow water-cooled conductor of an electric device is fitted at the front of the central hole A water-cooled cable terminal structure,
A plurality of notches extending in the axial direction from the rear end of the main body are provided on the outer peripheral surface of the terminal body at intervals in the circumferential direction, and the rear end of the cooling water hole and the front end of the notch are The outer diameter of the terminal body is substantially equal to the outer diameter of the rear end portion of the electric device side terminal, and the front end surface of the terminal main body and the rear end surface of the electric device side terminal are the male screw and the female screw. The water-cooled cable side terminal and the electric device side terminal are coupled so as to be in close contact with each other, and the tip of the electric device side terminal is attached to the outer wall of the electric device via the insulator, and the electric device side water-cooled cable terminal structure an insulating hose covering the whole of the a portion projecting from the electrical equipment terminals water cooling cable terminal is characterized in that is provided slidably. 内部後端寄りに水冷電線が嵌入される水冷電線嵌入部が設けられた筒状の端子本体と、端子本体の先端面から軸方向に延びるとともに、雄ねじが外周面に切られており、端子本体より小径のねじ込み部とからなり、前記端子本体の前部と前記ねじ込み部とを冷却水孔が貫通する水冷ケーブル側端子、および後端寄り内部に前記雄ねじと螺合する雌ねじが切られており、前記冷却水孔と連通する中心孔を有し、複数の中空水冷導体を有するヘッダーが前端に設けられており、前端寄り外周面が絶縁体で被覆された筒状の電気機器側端子を備えた水冷ケーブル端子構造であって、
前記端子本体の外周面に本体後端から軸方向に延びる複数の冷却水バイパスが周方向に間隔をおいて設けられており、前記冷却水孔の後端部と冷却水バイパスの先端部とが連通孔を介して連通し、前記端子本体の外径と電気機器側端子の後端部の外径がほぼ等しく、前記端子本体の前端面と電気機器側端子の後端面とが前記雄ねじと雌ねじとの螺合により密接するようにして水冷ケーブル側端子と電気機器側端子とが結合され、前記電気機器側端子の先端部が前記絶縁体を介して電気機器の外壁に取り付けられ、電気機器側端子の電気機器から突出する部分と前記水冷ケーブル側端子の全体を被覆する絶縁ホースがスライド可能に設けられていることを特徴とする水冷ケーブル端子構造。 A cylindrical terminal main body provided with a water-cooled electric wire insertion portion near the inner rear end, an axial direction extending from the front end surface of the terminal main body, and a male screw cut into the outer peripheral surface. A water-cooled cable side terminal through which a cooling water hole penetrates the front portion of the terminal body and the screwed portion, and a female screw that is screwed with the male screw inside the rear end are cut off. A header having a central hole communicating with the cooling water hole and having a plurality of hollow water-cooled conductors provided at the front end, and a cylindrical electrical equipment side terminal whose outer peripheral surface near the front end is covered with an insulator. Water-cooled cable terminal structure,
A plurality of cooling water bypasses extending in the axial direction from the rear end of the main body are provided on the outer peripheral surface of the terminal body at intervals in the circumferential direction, and a rear end portion of the cooling water hole and a front end portion of the cooling water bypass are provided. The outer diameter of the terminal body is substantially equal to the outer diameter of the rear end portion of the electric device side terminal, and the front end surface of the terminal main body and the rear end surface of the electric device side terminal are the male screw and the female screw. The water-cooled cable side terminal and the electric device side terminal are coupled so as to be in close contact with each other, and the tip of the electric device side terminal is attached to the outer wall of the electric device via the insulator, and the electric device side A water-cooled cable terminal structure , wherein an insulating hose that covers a portion of the terminal protruding from the electric device and the entire terminal of the water-cooled cable side is slidably provided . 電気機器側端子と水冷ケーブル側端子の接合面と、両端子を包囲被覆した絶縁ホースを、前記接合面を挟んだ両側位置でホースバンドにて径方向に締め付け固定したことを特徴とする請求項１又は２に記載の水冷ケーブル端子構造。 The joint surface of the electric equipment side terminal and the water-cooled cable side terminal, and the insulating hose surrounding and covering both terminals are fastened and fixed in a radial direction by a hose band at both side positions sandwiching the joint surface. The water-cooled cable terminal structure according to 1 or 2.
JP2003358383A 2003-10-17 2003-10-17 High current water-cooled cable terminal Expired - Fee Related JP4018619B2 (en)

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Cited By (1)

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CN104716469A (en) * 2015-04-09 2015-06-17 麦特汽车服务股份有限公司 Water cable and assembling method thereof

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CN102104240A (en) * 2009-12-17 2011-06-22 贵州黎阳航空动力有限公司 Special vacuum water-cooled cable joint and manufacturing method thereof
CN107681314B (en) * 2017-09-29 2024-03-19 深圳市沃尔新能源电气科技股份有限公司 Liquid-cooled cable plug-in structure and charging connector
CN108418061B (en) * 2018-05-15 2023-12-22 深圳市沃尔新能源电气科技股份有限公司 Liquid Cooling Connector Plug
CN110932205B (en) * 2019-12-30 2020-12-22 国网山东省电力公司烟台供电公司 Butt-joint type wire fixing frame for eliminating heating defect of cable head in electrified mode

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104716469A (en) * 2015-04-09 2015-06-17 麦特汽车服务股份有限公司 Water cable and assembling method thereof
CN104716469B (en) * 2015-04-09 2016-09-28 麦特汽车服务股份有限公司 A kind of Water cooling cable and assemble method thereof

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