JPS59184830A - Thermocouple apparatus - Google Patents

Abstract

PURPOSE:To prevent the transmission of a bending stress to an electrically welded part by the holding force of an elastic clip by forming the elastic clip in such a way that the clip is formed along the outer diameters of an outer copper wire and a temp. sensitive part holder at the vicinity of the part electrically welded to the temp. sensitive part holder of the outer copper wire. CONSTITUTION:The clip 5 pressing and interposing parallelly the outer copper wire 7 and the temp. sensitive part holder 2 is provided at the vicinity of the electrically welded part to the holder 2 of the wire 7, and the constitution difficult to transmit the stress to the electrically welded part even if the bending stress is applied to the wire 7 is obtained. Furthermore, a guide groove 8 for interposing the clip is provided at the holder 2 to prevent the easy movement of the clip 5. As the result, the groove 8 is fitted with the holder 2 by the elastic force of the clip 5, and an outer copper wire 6 is adhered tightly and parallelly along the holder 2, and held strongly thereby.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、燃焼器具等の燃焼炎の有無を検知する熱電対
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a thermocouple device for detecting the presence or absence of combustion flame in a combustion appliance or the like.

従来例の構成とその問題点 従来、２本の外部銅線を有する熱電対では、外部銅線の
片側は感温部ホルダーの外周面に電気溶接された状態で
使用されてあり、メンテナンス時に何らかの応力が、前
記溶接部に加わると外部銅線が溶接部から容易に断線し
、着火検知不良故障がひんばんに発生していた。Conventional configuration and its problems Conventionally, in thermocouples with two external copper wires, one side of the external copper wire is electrically welded to the outer circumferential surface of the temperature-sensing part holder. When stress is applied to the welded portion, the external copper wire is easily disconnected from the welded portion, and ignition detection failures frequently occur.

発明の目的 本発明は上記従来の欠点を解消するもので、熱電対の外
部銅線に応力が加わっても、容易に断線することのない
構成とすることを目的とする。OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and aims to provide a thermocouple with a structure that does not easily break even when stress is applied to the external copper wire.

発明の構成 上記目的を達するため、本発明の熱電対装置は、外部銅
線の感温部ホルダーへの電気溶接部近傍で外部銅線と、
感温部ホルダーを並行しておさえ、挾み込むクリップを
設け、外部銅線に曲げ応力が加わっても、前記電気溶接
部には応力が伝達しにくい構成とするとともにさらに、
前記クリップが容易に移動しない様に、感温部ホルダー
にクリップ挾み込みガイド溝を設ける構成である。Structure of the Invention In order to achieve the above-mentioned object, the thermocouple device of the present invention includes a thermocouple that connects the external copper wire to the temperature-sensing part holder in the vicinity of the electrically welded part of the external copper wire to the temperature-sensing part holder.
A clip is provided to hold and hold the temperature sensing part holder in parallel, so that even if bending stress is applied to the external copper wire, the stress is difficult to be transmitted to the electric welding part, and further,
In order to prevent the clip from easily moving, the thermosensor holder is provided with a guide groove for inserting the clip.

実施例の説明 以下本発明の一実施例について、図面に基づいて説明す
る。DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

第１図において、１は感温部、２は感温部ホルダー、３
は暇付用碍子、４は外部銅線６と、感温部ホルダー２の
電気溶接部、５は本発明によるクリップで、外部銅線６
及び感温部ホルダー２のガイド溝８の外径に沿う寸法構
成とし、その外観を第４図に示す。７は他の外部銅線を
示し、感温部ホルダー２の中空部を通って感温部１の内
側に接続される。第２図に、第１図Ａ−Ａ’部の断面を
示す。第３図に於いて、８はクリップ挾み込みガイド溝
を示し、電気溶接部４の近傍に設けるものとする。In Figure 1, 1 is a temperature sensing part, 2 is a temperature sensing part holder, and 3
4 is an electric welding part between the external copper wire 6 and the temperature-sensing part holder 2; 5 is a clip according to the present invention;
The outer diameter of the guide groove 8 of the temperature sensing part holder 2 is shown in FIG. 4. Reference numeral 7 indicates another external copper wire, which passes through the hollow part of the temperature sensing part holder 2 and is connected to the inside of the temperature sensing part 1. FIG. 2 shows a cross section taken along the line AA' in FIG. 1. In FIG. 3, reference numeral 8 indicates a clip insertion guide groove, which is provided near the electric welding portion 4.

上記構成に於いて、第３図に示すクリップ挾み込み用の
ガイド溝８に沿わせて、第４図のクリップ５を外部銅線
６側から挾み込み、第２図の断面図に示す構成となる徒
でクリップ６を押し込む。In the above configuration, the clip 5 shown in FIG. 4 is inserted from the external copper wire 6 side along the guide groove 8 for inserting the clip shown in FIG. Push in the clip 6 with the help of the configuration.

その結果、クリップ５の弾性力で、感温部ホルダー２と
嵌合し、外部銅線らを感温部ボルダ−２に並行に密着し
て沿わせて、強固に保持する。クリップ５はガイド溝８
に沿って嵌合しているので、振動、衝撃等でも移動する
ことはない。As a result, the elastic force of the clip 5 fits into the temperature-sensing part holder 2, and the external copper wires are tightly held in parallel with the temperature-sensing part boulder 2 so as to be firmly held therein. Clip 5 has guide groove 8
Since it is fitted along the , it will not move due to vibrations, shocks, etc.

発明の効果 以上のように本発明によれば次の効果を得ることができ
る。Effects of the Invention As described above, according to the present invention, the following effects can be obtained.

（１）外部銅線の感温部ホルダーへの電気溶接部近傍で
、外部銅線の外径ならびに感温部ホルダーの外径に沿う
ように構成した弾性クリップとしたので、外部銅線と感
温部ホルダーを並行に密着させることができ、外部銅線
に曲げ応力が加わっても、弾性クリップの保持力で、電
気溶接部には曲げ応力が伝達されることはなく、その結
果従来多かった電気溶接部の断線故障がなくなり、メン
テナンスや組立時の取扱い後も安定した性能が出せる。(1) The elastic clip is configured to follow the outer diameter of the external copper wire and the outer diameter of the temperature sensing part holder near the electrically welded part of the external copper wire to the temperature sensing part holder. The hot section holder can be closely attached in parallel, and even if bending stress is applied to the external copper wire, the holding force of the elastic clip prevents the bending stress from being transmitted to the electric welding area, which was often the case in the past. This eliminates disconnection failures in electrically welded parts and provides stable performance even after handling during maintenance and assembly.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の一実施例である熱電対装置の要部側面
図、第２図は第１図のＡ−へ′線における断面図、第３
図は同要部拡大側面図、第４図は同クリップの外観斜視
図である。 １・・・・・・感温部、２・・・・・・感温部ホルダー
、　　７・・・・・・外部銅線、５・・・・・クリップ
、６・・・・・・外部銅線、８・・・・・・ガイド溝。 代理人の氏名　弁理士　中　尾　敏　男　はが１基筒　
１　図 β ＠　２　図 第３図　　　　第４図FIG. 1 is a side view of essential parts of a thermocouple device according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line A-' in FIG. 1, and FIG.
The figure is an enlarged side view of the main part, and FIG. 4 is an external perspective view of the clip. 1... Temperature sensing part, 2... Temperature sensing part holder, 7... External copper wire, 5... Clip, 6... External Copper wire, 8... Guide groove. Name of agent: Patent attorney Toshio Nakao
1 Figure β @ 2 Figure 3 Figure 4

Claims (1)

【特許請求の範囲】[Claims] 感温部を保持する円筒状の感＠部ホルダーの外周面に溶
接して片側の外部銅線を引き出すとともに別の外部銅線
は前記円筒状感＠部ホルダーの中空部を通って前記感温
部の内側に溶接し湖記片側の外部銅線と感温部ホルダー
の外周面の溶接部近傍の前記感＠部ホルダーにガイド溝
を設け、前記外部銅線と前記感温部ホルダーに設けたガ
イド溝の外径にそわせて、弾性を有するクリップを着脱
自在に装着する構成としだ熱電対装置。The external copper wire is welded to the outer circumferential surface of the cylindrical sensing part holder that holds the temperature sensing part and one side of the external copper wire is pulled out, while another external copper wire passes through the hollow part of the cylindrical sensing part holder and the temperature sensing part is welded to the outer peripheral surface of the cylindrical sensing part holder that holds the temperature sensing part. A guide groove is provided in the sensing part holder near the weld between the external copper wire on one side and the outer peripheral surface of the temperature sensing part holder, and a guide groove is provided in the external copper wire and the temperature sensing part holder. This thermocouple device has a structure in which an elastic clip is detachably attached along the outer diameter of the guide groove.