JPH05288612A - Connection device - Google Patents
Connection deviceInfo
- Publication number
- JPH05288612A JPH05288612A JP8696492A JP8696492A JPH05288612A JP H05288612 A JPH05288612 A JP H05288612A JP 8696492 A JP8696492 A JP 8696492A JP 8696492 A JP8696492 A JP 8696492A JP H05288612 A JPH05288612 A JP H05288612A
- Authority
- JP
- Japan
- Prior art keywords
- sheath
- thermocouple
- sleeve
- type thermocouple
- connected body
- 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.)
- Granted
Links
Landscapes
- Multi-Conductor Connections (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は例えばシース形熱電対と
補償導線とを接続する接続装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting device for connecting, for example, a sheath type thermocouple and a compensating lead wire.
【０００２】[0002]
【従来の技術】シース形熱電対は小形化を図れることか
ら温度測定の用途に広く採用されている。このシース形
熱電対は補償電線を介して測定回路に接続して用いてお
り、測定した温度情報を補償導線を介して測定回路に伝
えるようにしている。シース形熱電対と補償導線とは次
に述べる構成で接続されている。2. Description of the Related Art Since a sheath type thermocouple can be miniaturized, it is widely used for temperature measurement. This sheath type thermocouple is used by being connected to a measurement circuit via a compensation wire, and the measured temperature information is transmitted to the measurement circuit via a compensation lead wire. The sheath type thermocouple and the compensating lead wire are connected in the configuration described below.
【０００３】シース形熱電対は、金属からなるシースの
内部に一対の熱電対素子が挿通されて耐熱性絶縁粉末が
充填されたものである。熱電対素子の端末はシースから
外部に導出されている。補償導線は外部被覆の内部に一
対の芯線が挿通されたもので、芯線の端末が外部被覆の
外部に導出されている。The sheath type thermocouple has a pair of thermocouple elements inserted into a sheath made of metal and filled with heat resistant insulating powder. The end of the thermocouple element is led out from the sheath. The compensating lead wire is formed by inserting a pair of core wires inside the outer coating, and the ends of the core wires are led out to the outside of the outer coating.
【０００４】そして、熱電対素子の端末と補償導線の芯
線とはろう付けにより接続される。熱電対素子と芯線と
の接続部を囲んで金属製のスリーブが配置され、このス
リーブの両端がシース形熱電対の外管と導線の外管に夫
々固定されている。スリーブの内部には絶縁樹脂が充填
されて熱電対素子と芯線の接続部が樹脂の内部に埋めら
れている。The end of the thermocouple element and the core wire of the compensation lead wire are connected by brazing. A metal sleeve is arranged so as to surround the connecting portion between the thermocouple element and the core wire, and both ends of the sleeve are fixed to the outer tube of the sheath type thermocouple and the outer tube of the conducting wire, respectively. The inside of the sleeve is filled with an insulating resin, and the connecting portion between the thermocouple element and the core wire is embedded inside the resin.
【０００５】[0005]
【発明が解決しようとする課題】この従来の接続装置で
は、シース形熱電対の外管と補償導線の外管の固定が充
分でなく夫々が軸線を中心として回転することがある。
シース形熱電対の外管と補償導線の外管が軸線を中心と
して回転すると、シース形熱電対の熱電対素子と補償導
線の芯線とがよじれて、熱電対素子と芯線とが接触して
短絡事故が生じるおそれがある。In this conventional connecting device, the outer tube of the sheath type thermocouple and the outer tube of the compensating lead wire are not sufficiently fixed, and each of them may rotate about the axis.
When the outer tube of the sheath type thermocouple and the outer tube of the compensating lead wire rotate around the axis, the thermocouple element of the sheath type thermocouple and the core wire of the compensating lead wire are twisted, and the thermocouple element and the core wire come into contact with each other to cause a short circuit. An accident may occur.
【０００６】本発明は前記事情に基づいてなされたもの
で、第一の被接続体と第二の被接続体との接続部におけ
る各被接続体のよじれを阻止して短絡事故の発生を防止
した接続装置を提供することを目的とする。The present invention has been made in view of the above circumstances, and prevents twisting of each connected body at the connecting portion between the first connected body and the second connected body to prevent occurrence of a short circuit accident. It is an object of the present invention to provide a connection device having the above structure.
【０００７】[0007]
【課題を解決するための手段】前記目的を達成するため
に本発明の接続装置は、外筒の内部に一対の芯線を挿通
してなる前記第１の被接続体における前記外筒から露出
した前記芯線と、外筒の内部に一対の芯線を挿通してな
る第２の被接続体における前記外筒から露出した前記芯
線とを接続する装置において、前記第１の被接続体の外
筒と前記第２の被接続体の外筒とに夫々固定され前記各
外筒の軸線を中心とする回転を抑える固定体と、前記第
１の被接続体の芯線と前記第２の被接続体の芯線との接
続部および前記固定体を包囲して配置されたスリーブ
と、このスリーブの内部に充填された絶縁性を有する合
成樹脂と具備することを特徴する。特に本発明の接続装
置は、シース形熱電対と補償導線とを接続するために使
用すると最適である。In order to achieve the above object, the connecting device of the present invention is exposed from the outer cylinder of the first connected body having a pair of core wires inserted into the outer cylinder. An apparatus for connecting the core wire and the core wire exposed from the outer cylinder in a second connected body formed by inserting a pair of core wires inside the outer cylinder, wherein the core tube is connected to the outer cylinder of the first connected body. A fixed body that is fixed to the outer cylinder of the second connected body and that suppresses rotation around the axis of each outer cylinder; a core wire of the first connected body and the second connected body. It is characterized by comprising a sleeve arranged so as to surround the connection portion with the core wire and the fixed body, and an insulating synthetic resin filled inside the sleeve. In particular, the connection device of the present invention is optimally used for connecting the sheath type thermocouple and the compensation lead wire.
【０００８】[0008]
【作用】固定体により第１の被接続体の外筒と第２の被
接続体の外筒の軸線を中心とする回転を抑えるので、各
被接続体の芯線がよじれて相互に接触することがなく、
このため短絡事故の発生を防止できる。Since the fixed body suppresses rotation about the axis of the outer cylinder of the first connected body and the outer cylinder of the second connected body, the cores of the connected bodies twist and come into contact with each other. Without
Therefore, the occurrence of a short circuit accident can be prevented.
【０００９】[0009]
【実施例】本発明の一実施例について図１および図２を
参照して説明する。この実施例はシース形熱電対と補償
導線とを接続する構造に適用したものである。図１はこ
の接続装置の全体を示している。図中１はシース形熱電
対、２は補償導線である。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. This embodiment is applied to a structure for connecting a sheath type thermocouple and a compensation lead wire. FIG. 1 shows the entire connecting device. In the figure, 1 is a sheath type thermocouple and 2 is a compensating lead wire.
【００１０】シース形熱電対１は、外筒である金属から
なるシース３の内部に一対の熱電対素子４ａ、４ｂが挿
通されるとともに、耐熱絶縁粉末５が充填されたもの
で、一対の熱電対素子４ａ、４ｂの端末がシース３の開
口端部から外部に導出されている。補償導線２は、外筒
である外部被覆６の内部に中間被覆７が設けられ、その
内部に一対の芯線８ａ、８ｂが挿通されており、一対の
芯線８ａ、８ｂが外部被覆６から外部に露出されてい
る。The sheath type thermocouple 1 has a pair of thermocouple elements 4a and 4b inserted into a sheath 3 made of metal, which is an outer cylinder, and is filled with heat-resistant insulating powder 5. The ends of the pair of elements 4 a and 4 b are led out from the open end of the sheath 3. The compensating conductor 2 is provided with an intermediate coating 7 inside an outer coating 6 which is an outer cylinder, and a pair of core wires 8a and 8b inserted therein, so that the pair of core wires 8a and 8b extends from the outer coating 6 to the outside. Exposed.
【００１１】シース形熱電対１と補償導線２とは同じ軸
線上に配置され、一対の熱電対素子４ａ、４ｂの端末と
一対の芯線８ａ、８ｂの端末とが向合わせられてろう材
９を用いてろう付けされている。この場合、一対の熱電
対素子４ａ、４ｂの端末と一対の芯線８ａ、８ｂの端末
の隣合うもの同志は互いに接触しないように直径方向に
間隔が開けられている。The sheath type thermocouple 1 and the compensating lead wire 2 are arranged on the same axis, and the ends of the pair of thermocouple elements 4a and 4b and the ends of the pair of core wires 8a and 8b are opposed to each other to form the brazing material 9. It is brazed using. In this case, the terminals of the pair of thermocouple elements 4a and 4b and the adjacent terminals of the pair of core wires 8a and 8b are spaced in the diametrical direction so as not to contact each other.
【００１２】１０は固定体で、図２にも示すように部分
１０ａと、この部分１０ａの一端にこれと直角に組み合
された部分１０ｂとを有するＴ形をなすものである。部
分１０ａはシース形熱電対１と補償導線２との接続に必
要な長さを有しており、両端が図２に示す折り曲げ線
（仮想線）に沿って折り曲げられて起立されている。部
分１０ａはシース形熱電対１のシース３と補償導線２の
外部被覆６との間に掛け渡して配置され、他端がシース
形熱電対１のシース３にろう材１１によりろう付けされ
て固定されている。このため、シース形熱電対１のシー
ス３は固定体１０に対して軸線を中心として回転しない
ように固定される。Reference numeral 10 designates a fixed body, which has a T-shape having a portion 10a and a portion 10b assembled at one end of the portion 10a at a right angle as shown in FIG. The portion 10a has a length necessary for connecting the sheath thermocouple 1 and the compensating lead wire 2, and both ends thereof are bent and erected along the bending line (imaginary line) shown in FIG. The portion 10a is arranged so as to extend between the sheath 3 of the sheath type thermocouple 1 and the outer coating 6 of the compensation lead wire 2, and the other end is brazed and fixed to the sheath 3 of the sheath type thermocouple 1 by a brazing material 11. Has been done. Therefore, the sheath 3 of the sheath type thermocouple 1 is fixed to the fixed body 10 so as not to rotate about the axis.
【００１３】部分１０ｂは補償導線２の外部被覆６を囲
んで固定するために必要な長さを有しており、補償導線
２の外部被覆６を囲むように円形に形成され両端が突き
合わされ、外部被覆６を把持してこれと固定されてい
る。このため、補償導線２の外部被覆６は固定体１０に
対して軸線を中心として回転しないように固定される。The portion 10b has a length necessary to surround and fix the outer coating 6 of the compensation conductor 2, and is formed in a circular shape so as to surround the outer coating 6 of the compensation conductor 2, and both ends thereof are butted. The outer coating 6 is gripped and fixed thereto. Therefore, the outer coating 6 of the compensation conductor 2 is fixed to the fixed body 10 so as not to rotate about the axis.
【００１４】１２は金属からなるスリーブで、シース形
熱電対１のシース３と補償導線２の外部被覆６より大き
な内径を有する円筒形をなし、一端が開放され、他端に
はシース挿通孔１３が中心軸線に沿って形成されてい
る。スリーブ１２はシース形熱電対１と補償導線２との
接続部を、これらの部材の中心軸線を中心とする同心円
状に囲んで配置され、シース挿通孔１３にシース形熱電
対１のシース３が挿通されている。スリーブ１２はシー
ス形熱電対１のシース３にろう材１４によりろう付けさ
れている。Reference numeral 12 denotes a sleeve made of metal, which has a cylindrical shape having an inner diameter larger than that of the sheath 3 of the sheath type thermocouple 1 and the outer coating 6 of the compensating lead wire 2. One end is open and the other end is a sheath insertion hole 13 Are formed along the central axis. The sleeve 12 is arranged so as to concentrically surround the connecting portion between the sheath-type thermocouple 1 and the compensating lead wire 2 around the central axis of these members, and the sheath 3 of the sheath-type thermocouple 1 is inserted into the sheath insertion hole 13. It has been inserted. The sleeve 12 is brazed to the sheath 3 of the sheath type thermocouple 1 with a brazing material 14.
【００１５】スリ−ブ１２の内部には絶縁性をもった熱
硬化性樹脂１５が充填されている。すなわち、樹脂１５
は軟化した状態でスリーブ１２の内部に充填された後硬
化されている。樹脂１５はスリーブ１２の内部の空間部
全体を埋め、シース形熱電対１のシース３および補償導
線２の外部被覆６に固着し、熱電対素子４ａ、４ｂの端
末と芯線８ａ、８ｂの端末に固着し、また固定体１０に
固着している。これによりシース３、外部被覆６、熱電
対素子４ａ、４ｂ、芯線８ａ、８ｂ、固定体１０および
スリーブ１２が一体に固定される。Inside the sleeve 12, a thermosetting resin 15 having an insulating property is filled. That is, the resin 15
Is filled in the sleeve 12 in a softened state and then cured. The resin 15 fills the entire space inside the sleeve 12, is fixed to the sheath 3 of the sheath type thermocouple 1 and the outer coating 6 of the compensation lead 2, and is attached to the ends of the thermocouple elements 4a and 4b and the ends of the cores 8a and 8b. It is fixed and fixed to the fixed body 10. As a result, the sheath 3, the outer coating 6, the thermocouple elements 4a and 4b, the core wires 8a and 8b, the fixed body 10 and the sleeve 12 are integrally fixed.
【００１６】このようにしてシース形熱電対１と補償導
線２は夫々固定体１０に共通に軸線を中心として回転し
ないように固定され、シース形熱電対１と補償導線２が
夫々他方に対して軸線を中心として回転することを防止
できる。このため、シース形熱電対１と補償導線２が軸
線を中心として回動して、一方の熱電対素子４ａと芯線
８ａとの接続部と、他方の熱電対素子４ｂと芯線８ｂと
の接続部とがねじれて相互に接触し、両者間が短絡する
ことを防止できる。本発明の他の実施例について図３な
いし図５を参照して説明する。図３ないし図５において
図１および図２と同じ部分は同じ符号を付して示してい
る。In this way, the sheath type thermocouple 1 and the compensating lead wire 2 are fixed to the fixed body 10 in common so as not to rotate about the axis, and the sheath type thermocouple 1 and the compensating lead wire 2 respectively with respect to the other. It is possible to prevent rotation about the axis. Therefore, the sheath-type thermocouple 1 and the compensating lead wire 2 rotate about the axis to connect the thermocouple element 4a to the core wire 8a and the other thermocouple element 4b to the core wire 8b. It is possible to prevent the and from twisting to come into contact with each other and short-circuit between the two. Another embodiment of the present invention will be described with reference to FIGS. 3 to 5, the same parts as those in FIGS. 1 and 2 are designated by the same reference numerals.
【００１７】この実施例は、スリーブ１２内部に充填さ
れた樹脂が、熱電対素子４ａ、４ｂと芯線８ａ、８ｂと
の接続部に達しない、いわゆる充填不良が生じる事態に
至らないようにするものである。充填不良が生じた場合
には、接続部を囲む空間部が生じ、各熱電対素子４ａ、
４ｂと芯線８ａ、８ｂの接続部が相互に絶縁されず接続
部が相互に接触して短絡事故が生じることがあり、また
外部から空間部に湿気が侵入して接続部に対する絶縁性
が低下することがある。This embodiment prevents the resin filled in the sleeve 12 from reaching the connection between the thermocouple elements 4a and 4b and the core wires 8a and 8b, that is, a so-called filling failure occurs. Is. When the filling failure occurs, a space portion surrounding the connection portion is generated, and each thermocouple element 4a,
4b and the connecting portions of the core wires 8a and 8b are not insulated from each other and the connecting portions may come into contact with each other to cause a short-circuit accident, and moisture invades from the outside into the space to lower the insulating property to the connecting portions. Sometimes.
【００１８】このため、図３および図５に示すように固
定体１０の部分１０ａの両側部に側壁部１０ｃが夫々形
成されている。この一対の側壁部１０ｃは、部分１０ａ
の両端を折り曲げて起立するときに、折り曲げ線（仮想
線）に沿って折り曲げて起立される。このため部分１０
ａと側壁部１０ｃとで上部が開放された箱形をなす樹脂
受け部が形成される。Therefore, as shown in FIGS. 3 and 5, side wall portions 10c are formed on both side portions of the portion 10a of the fixed body 10, respectively. The pair of side wall portions 10c includes the portion 10a.
When both ends of are bent upright, they are bent upright along the bending line (imaginary line). Therefore part 10
A and the side wall portion 10c form a box-shaped resin receiving portion having an open upper portion.
【００１９】この実施例では、シース形熱電対１と補償
導線２を接続する場合に、熱電対素子４ａ、４ｂと芯線
８ａ、８ｂの接続部を囲んでスリーブ１２を配置する前
に、図３に示すように熱電対素子４ａ、４ｂと芯線８
ａ、８ｂとの接続部が絶縁性をもった熱硬化性樹脂１６
に埋め込む。すなわち、樹脂１６を軟化した状態で固定
体１０の樹脂受け部に入れて盛り上げて熱電対素子４
ａ、４ｂと芯線８ａ、８ｂとの接続部を包囲した状態で
硬化させる。この場合、接続部を囲む樹脂１６は固定体
１０の樹脂受け部で受け止められているために、軟化し
た樹脂が接続部から下方に流れ落ちることがなく、接続
部全体を樹脂１６の中に埋め込んだ状態を確保される。In this embodiment, when the sheath type thermocouple 1 and the compensating lead wire 2 are connected to each other, before the sleeve 12 is arranged so as to surround the connecting portions of the thermocouple elements 4a and 4b and the core wires 8a and 8b, the arrangement shown in FIG. As shown in, the thermocouple elements 4a and 4b and the core wire 8
Thermosetting resin 16 having insulating properties at the connection with a and 8b
Embed in. That is, the resin 16 in the softened state is put in the resin receiving portion of the fixed body 10 and raised to make the thermocouple element 4
It is cured in a state in which the connecting portions between the cores a and 4b and the core wires 8a and 8b are surrounded. In this case, since the resin 16 surrounding the connecting portion is received by the resin receiving portion of the fixed body 10, the softened resin does not flow downward from the connecting portion, and the entire connecting portion is embedded in the resin 16. The state is secured.
【００２０】このように熱電対素子４ａ，４ｂと芯線８
ａ，８ｂとの接続部を樹脂１６でモールドした後に、図
４に示すように熱電対素子４ａ，４ｂと芯線８ａ，８ｂ
の接続部を囲んでスリーブ１２を配置し、スリーブ１２
の内部に樹脂１５を充填する。樹脂１５は樹脂１６を除
く部分に充填される。Thus, the thermocouple elements 4a and 4b and the core wire 8 are
After molding the connecting portions with a and 8b with resin 16, as shown in FIG. 4, the thermocouple elements 4a and 4b and the core wires 8a and 8b are formed.
The sleeve 12 is arranged so as to surround the connection part of the
The resin 15 is filled inside the container. The resin 15 is filled in the portion excluding the resin 16.
【００２１】このようにすればスリーブ１２の内部への
樹脂１５の充填状態にかかわらず熱電対素子４ａ、４ｂ
と芯線８ａ、８ｂとの接続部は樹脂１６に埋め込まれ、
接続部が湿気に触れることがない。なお、本発明は前記
実施例の構成に限定されず、種々変形して実施すること
ができる。In this way, the thermocouple elements 4a and 4b are irrespective of the filling state of the resin 15 into the sleeve 12.
And the connecting portions between the core wires 8a and 8b are embedded in the resin 16,
The connections are not exposed to moisture. The present invention is not limited to the configuration of the above-described embodiment, and can be modified in various ways.
【００２２】[0022]
【発明の効果】以上説明したように本発明の接続装置に
よれば、第一の被接続体と第二の被接続体との接続部に
おける各被接続体のよじれを阻止して短絡事故の発生を
防止でき、特にシース形熱電対と補償導線との接続に有
効である。As described above, according to the connecting device of the present invention, kinking of each connected body at the connecting portion between the first connected body and the second connected body is prevented to prevent a short circuit accident. It can be prevented from occurring and is particularly effective for connecting the sheath type thermocouple and the compensating lead wire.
【図１】本発明の一実施例の接続装置を示す断面図。FIG. 1 is a sectional view showing a connection device according to an embodiment of the present invention.
【図２】同じ実施例の接続装置に用いる固定体を示す展
開図。FIG. 2 is a development view showing a fixed body used in the connection device of the same embodiment.
【図３】本発明の他の実施例の接続装置においてスリー
ブを配置する前の状態を示す断面図。FIG. 3 is a cross-sectional view showing a state before a sleeve is arranged in the connection device according to another embodiment of the present invention.
【図４】同じ実施例の接続装置においてスリーブを配置
した状態を示す断面図。FIG. 4 is a cross-sectional view showing a state in which a sleeve is arranged in the connecting device of the same embodiment.
【図５】同じ実施例の接続装置に用いる固定体を示す展
開図。FIG. 5 is a development view showing a fixed body used in the connection device of the same embodiment.
【符号の説明】 １…シース形熱電対、２…補償導線、３…シース、４…
熱電対素子、６…外部被覆、８…芯線、１０…固定体、
１２…スリーブ、１５…樹脂。[Explanation of symbols] 1 ... Sheath type thermocouple, 2 ... Compensation lead wire, 3 ... Sheath, 4 ...
Thermocouple element, 6 ... Outer coating, 8 ... Core wire, 10 ... Fixed body,
12 ... Sleeve, 15 ... Resin.
Claims (2)
前記第１の被接続体における前記外筒から露出した前記
芯線と、外筒の内部に一対の芯線を挿通してなる第２の
被接続体における前記外筒から露出した前記芯線とを接
続する装置において、前記第１の被接続体の外筒と前記
第２の被接続体の外筒とに夫々固定され前記各外筒の軸
線を中心とする回転を抑える固定体と、前記第１の被接
続体の芯線と前記第２の被接続体の芯線との接続部およ
び前記固定体を包囲して配置されたスリーブと、このス
リーブの内部に充填された絶縁性を有する合成樹脂と具
備することを特徴する接続装置。1. A core wire which is exposed from the outer cylinder in the first connected body and which is formed by inserting a pair of core wires inside the outer cylinder, and a pair of core wires which are inserted inside the outer cylinder. In the device for connecting the core wire exposed from the outer cylinder in the second connected body, the outer cylinder of the first connected body and the outer cylinder of the second connected body are fixed to the outer cylinders, respectively. A fixed body that suppresses rotation about the axis of the cylinder, a connecting portion between the core wire of the first connected body and the core wire of the second connected body, and a sleeve that surrounds the fixed body. A connecting device comprising an insulating synthetic resin filled inside the sleeve.
り、他方の被接続体は補償導線である請求項１記載の接
続装置。2. The connection device according to claim 1, wherein one connected body is a sheath type thermocouple and the other connected body is a compensation lead wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08696492A JP3192204B2 (en) | 1992-04-08 | 1992-04-08 | Connection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08696492A JP3192204B2 (en) | 1992-04-08 | 1992-04-08 | Connection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05288612A true JPH05288612A (en) | 1993-11-02 |
| JP3192204B2 JP3192204B2 (en) | 2001-07-23 |
Family
ID=13901560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08696492A Expired - Fee Related JP3192204B2 (en) | 1992-04-08 | 1992-04-08 | Connection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3192204B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002107233A (en) * | 2000-09-27 | 2002-04-10 | Toshiba Corp | Thermocouple device |
-
1992
- 1992-04-08 JP JP08696492A patent/JP3192204B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002107233A (en) * | 2000-09-27 | 2002-04-10 | Toshiba Corp | Thermocouple device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3192204B2 (en) | 2001-07-23 |
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