JPH0850842A - Alloy type temperature fuse - Google Patents
Alloy type temperature fuseInfo
- Publication number
- JPH0850842A JPH0850842A JP20816794A JP20816794A JPH0850842A JP H0850842 A JPH0850842 A JP H0850842A JP 20816794 A JP20816794 A JP 20816794A JP 20816794 A JP20816794 A JP 20816794A JP H0850842 A JPH0850842 A JP H0850842A
- Authority
- JP
- Japan
- Prior art keywords
- melting point
- metal piece
- low melting
- flux
- case
- 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.)
- Pending
Links
Landscapes
- Fuses (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ヒュ−ズエレメントに
低融点金属片を使用した温度ヒュ−ズ、すなわち、合金
型温度ヒュ−ズに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature fuse in which a low melting point metal piece is used for a fuse element, that is, an alloy type temperature fuse.
【０００２】[0002]
【従来の技術】電子機器または電気機器を過電流に基づ
く加熱損傷から保全する場合、温度ヒュ−ズを使用し、
機器が許容温度に達すると温度ヒュ−ズを作動させ、機
器への通電を遮断することがあり、かかる温度ヒュ−ズ
としては、ヒュ−ズエレメントに低融点金属片を用いた
合金型温度ヒュ−ズが多用されている。2. Description of the Related Art Temperature fuses are used to protect electronic or electrical equipment from heat damage due to overcurrent.
When the equipment reaches the allowable temperature, the temperature fuse may be activated and the power to the equipment may be cut off.The temperature fuse is an alloy type temperature fuse that uses a low melting point metal piece for the fuse element. -Many of them are used.
【０００３】この合金型温度ヒュ−ズにおいては、上記
機器の許容温度若しくは上記機器の許容温度以下でか
つ、該温度に近接する温度を融点とする低融点合金組成
を調製し、この低融点合金組成の低融点金属片をヒュ−
ズエレメントに使用し、機器が過電流に基づき温度上昇
し、ヒュ−ズエレメントがその融点にまで加熱される
と、低融点金属片が溶断され、これにより機器への通電
を遮断している。In this alloy type temperature fuse, a low melting point alloy composition having a melting point at a temperature which is lower than or equal to the permissible temperature of the above equipment or near the permissible temperature of the above equipment is prepared, and this low melting point alloy is prepared. Fuse low melting point metal pieces with composition
When the fuse element is used as a heating element and its temperature rises due to overcurrent, and the fuse element is heated to its melting point, the low melting point metal piece is melted and cuts off the power supply to the equipment.
【０００４】この場合、低融点金属片が溶融されたの
ち、この溶融金属が表面張力による球状化により分断さ
れ、その球状化分断が進行し、分断間距離が所定の絶縁
距離に達して通電が遮断されるに至る。In this case, after the low melting point metal piece is melted, the molten metal is divided by the spheroidization due to the surface tension, the spheroidization division progresses, the separation distance reaches a predetermined insulation distance, and the current is supplied. It will be cut off.
【０００５】この合金型温度ヒュ−ズとして、リ−ド線
間に低融点金属片を橋設し、該低融点金属片にフラック
スを塗布し、該フラックス塗布低融点金属片をケ−スで
包囲し、ケ−ス開口とリ−ド線との間をガラスで封止
し、ケ−ス内を常圧の空気で満たしたもの（特開平５−
１７４６７９号公報）、リ−ド線間に低融点金属片を橋
設し、該低融点金属片にフラックスは塗布せず、同低融
点金属片をケ−スで包囲し、ケ−ス開口とリ−ド線との
間をガラスで封止し、ケ−ス内を減圧するか、または不
活性ガスで満たしたもの（特開平４−２８００２２号公
報）がそれぞれ公知である。As this alloy type temperature fuse, a low melting point metal piece is bridged between lead wires, a flux is applied to the low melting point metal piece, and the flux applying low melting point metal piece is formed by a case. A case in which the case is surrounded, the space between the case opening and the lead wire is sealed with glass, and the inside of the case is filled with air at normal pressure (Japanese Patent Laid-Open Publication No. HEI 5-200,000).
No. 174679), a low melting point metal piece is bridged between lead wires, flux is not applied to the low melting point metal piece, and the low melting point metal piece is surrounded by a case to form a case opening. It is known that the space between the lead wire and the lead wire is sealed with glass and the case is depressurized or filled with an inert gas (JP-A-4-280022).
【０００６】[0006]
【発明が解決しようとする課題】ところで、本発明者に
おいては、これらの２種の合金型温度ヒュ−ズについて
作動試験を行ったところ、前者（低融点金属片にフラッ
クスを塗布し、封止をガラス封止で行い、ケ−ス内に常
圧の空気を入れたもの）は、後者（低融点金属片にフラ
ックスを塗布せず、封止をガラス封止で行い、ケ−ス内
を減圧または不活性ガス充満としたもの）に較べ、初期
での作動特性には優れているが、長期経過後での作動特
性に劣ることを知った。By the way, the present inventor conducted an operation test on these two types of alloy type temperature fuses and found that the former (the flux was applied to the low melting point metal piece to seal it). In the latter case (in which normal pressure air is introduced into the case), the latter (without applying flux to the low melting point metal piece is sealed with glass, and the inside of the case is sealed). It was found that the operating characteristics in the initial stage are superior to those in which the operating pressure is reduced or filled with an inert gas, but the operating characteristics after a long period of time are inferior.
【０００７】前者が後者に較べ長期経過後での作動特性
に劣る理由としては、機器の長期の通電ヒ−トサイクル
によりフラックスが溶融して流下し低融点金属片表面が
露出状態となり、ケ−ス内空気によりその露出表面が酸
化される結果であると推定される。また、後者が前者よ
りも初期の作動特性に劣る理由としては、フラックスが
存在せず、溶融した低融点金属のリ−ド線端に対する濡
れ性が低く、リ−ド線端を核としての溶融金属の球状化
が生じ難くなる結果であると推定される。The reason why the former is inferior to the latter in the operating characteristics after a long period of time is that the flux is melted and flows down due to the long-term energization heat cycle of the equipment, and the surface of the low melting point metal piece is exposed, resulting in the case. It is presumed that this is a result of the exposed surface being oxidized by the air in the chamber. The reason why the latter is inferior to the former in the initial operating characteristics is that there is no flux, the wettability of the melted low melting point metal to the lead wire end is low, and the melting of the lead wire end as a core It is presumed that this is the result of making the metal spheroidizing less likely.
【０００８】本発明の目的は、初期での作動特性並びに
長期経過後での作動特性の何れにも優れている合金型温
度ヒュ−ズを提供することにある。An object of the present invention is to provide an alloy type temperature fuse which is excellent in both initial operating characteristics and operating characteristics after a long period of time.
【０００９】[0009]
【課題を解決するための手段】本発明に係る合金型温度
ヒュ−ズは、リ−ド線間に低融点金属片が橋設され、該
低融点金属片にフラックスが塗布され、該フラックス塗
布低融点金属片がケ−スで包囲され、ケ−ス開口とリ−
ド線との間がガラスで封止され、ケ−ス内が減圧されて
いるか、またはケ−ス内に不活性ガスが充満されている
ことを特徴とする構成である。In an alloy type temperature fuse according to the present invention, a low melting point metal piece is bridged between lead wires, a flux is applied to the low melting point metal piece, and the flux is applied. The low melting point metal piece is surrounded by the case, and the case opening and
It is characterized in that it is sealed with glass between the lead wire and the case, and the case is depressurized or the case is filled with an inert gas.
【００１０】以下、図面を参照しつつ本発明の構成を説
明する。図１は本発明に係る筒状ケ−スタイプの合金型
温度ヒュ−ズを示している。図１において、１，１はリ
−ド線（通常、銅線）であり、先端には鍔１１を形成
し、後述する溶融金属に対する接触面積を広くして球状
化分断を生じ易くしてある。２はリ−ド線１，１の鍔１
１，１１間に臘接または溶接により橋設した低融点金属
片、３は低融点金属片２に塗布したフラックスである。
４はフラックス塗布低融点金属片上に挿通した筒状ケ−
ス（通常、セラミックス製）である。５は筒状ケ−ス各
端と各リ−ド線との間のガラス封止部であり、筒状ケ−
ス４内は５mmHgよりも高真空度に減圧するか、不活性ガ
スを充満してある。The structure of the present invention will be described below with reference to the drawings. FIG. 1 shows an alloy type temperature fuse of a cylindrical case type according to the present invention. In FIG. 1, reference numerals 1 and 1 are lead wires (usually copper wires), and a brim 11 is formed at the tip of the lead wire to widen a contact area with a molten metal, which will be described later, to easily cause spheroidization. . 2 is the brim 1 of the lead wires 1 and 1
The low melting point metal piece 3 bridged between 1 and 11 by welding or welding is a flux applied to the low melting point metal piece 2.
No. 4 is a tubular case inserted through a flux-coated low melting point metal piece.
(Usually made of ceramics). Reference numeral 5 denotes a glass sealing portion between each end of the tubular case and each lead wire.
The inside of the space 4 is decompressed to a vacuum degree higher than 5 mmHg or filled with an inert gas.
【００１１】この筒状ケ−スタイプの合金型温度ヒュ−
ズは、各リ−ド線１に金属リング５１をガラス５の封着
で取付け、次いで、これらのリ−ド線間に低融点金属片
２を橋設し、この低融点金属片２にフラックス３を塗布
し、端部内周面に予め金属または金属酸化物をメタライ
ジングしたセラミックス筒４（例えば、セラミックスが
アルミナの場合、アルミン酸マンガン膜をＭｏ−Ｍｎ法
により予めメタライジングしておく）をフラックス塗布
低融点金属片上に挿通し、ケ−ス内を真空引きするか、
不活性ガスを封入のうえ上記金属リングとセラミックス
筒各端内面との間をはんだ付けで封止することにより製
造できる。This tubular case type alloy type temperature fuse
In each of the lead wires 1, a metal ring 51 is attached to the lead wires 1 by sealing glass 5, and then a low melting point metal piece 2 is bridged between these lead wires. 3 is applied, and a ceramic cylinder 4 (for example, when the ceramic is alumina, a manganese aluminate film is metallized in advance by the Mo-Mn method) in which metal or metal oxide is metallized in advance on the inner peripheral surface of the end portion. Insert the flux onto the low melting point metal piece and evacuate the case, or
It can be manufactured by sealing with an inert gas and then soldering between the metal ring and the inner surface of each end of the ceramic cylinder.
【００１２】図２は本発明に係るキャップタイプの合金
型温度ヒュ−ズを示している。図２において、１，１は
並行配設のリ−ド線（通常、銅線）、２はリ−ド線１，
１の先端間に臘接または溶接により橋設した低融点金属
片、３は低融点金属片２に塗布したフラックス、５０は
リ−ド線１，１に封着した端子金具であり、端子金具５
０とリ−ド線１，１との間はガラス５で封止してある。
４は金属製のキャップ、４１はキャップ内面に被覆した
絶縁物であり、この内面絶縁被覆キャップで上記のフラ
ックス塗布低融点金属片を包囲し、キャップ４のフラン
ジと端子金具５０のフランジとの間をはんだ付け、また
は溶接により封止し、キャップ４内を５mmHgよりも高真
空度に減圧するか、キャップ内に不活性ガスを充満して
ある。FIG. 2 shows a cap type alloy type temperature fuse according to the present invention. In FIG. 2, 1,1 are lead wires (usually copper wires) arranged in parallel, and 2 are lead wires 1,
1. A low melting point metal piece bridged between the ends of 1 by welding or welding, 3 is a flux applied to the low melting point metal piece 2, 50 is a terminal fitting sealed to the lead wires 1, 1, and the terminal fitting is 5
A glass 5 seals between 0 and the lead wires 1, 1.
Reference numeral 4 is a metal cap, 41 is an insulator with which the inner surface of the cap is coated, and the inner surface insulating coating cap surrounds the flux-coated low melting point metal piece, and the space between the flange of the cap 4 and the flange of the terminal fitting 50. Are sealed by soldering or welding, and the inside of the cap 4 is depressurized to a vacuum degree higher than 5 mmHg, or the cap is filled with an inert gas.
【００１３】このキャップタイプの合金型温度ヒュ−ズ
は、図２において、先ず端子金具５０にリ−ド線１，１
を挿通し、この端子金具５０とリ−ド線１，１との間を
ガラス５で封止し、次いでリ−ド線１，１の先端間に低
融点金属片２を橋設し、この低融点金属片２にフラック
ス３を塗布して製作した半製品の金属端子５０のフラン
ジに、内面絶縁被覆金属キャップ４のフランジを、キャ
ップ内を真空引きするか、不活性ガスを封入のうえ、は
んだ付けまたは溶接で封止するすることにより製造でき
る。In this cap type alloy type temperature fuse, the lead wires 1, 1 are first attached to the terminal fitting 50 in FIG.
And the glass wire 5 is sealed between the terminal fitting 50 and the lead wires 1 and 1, and then a low melting point metal piece 2 is bridged between the ends of the lead wires 1 and 1. The flange of the metal cap 50 of the semi-finished product manufactured by applying the flux 3 to the low melting point metal piece 2 is evacuated to the flange of the metal cap 4 having the inner surface insulation coating, or after the inert gas is sealed, It can be manufactured by sealing by soldering or welding.
【００１４】図３の（イ）は扁平ケ−スタイプの本発明
に係る合金型温度ヒュ−ズを、図３の（ロ）は、図３の
（イ）におけるロ−ロ断面図をそれぞれ示している。図
３の（イ）並びに図３の（ロ）において、１，１は並行
配設のリ−ド線（通常、銅線）、２はリ−ド線１，１の
先端間に臘接または溶接により橋設した低融点金属片、
３は低融点金属片２に塗布したフラックスである。４は
一方に開口４２を有する扁平なケ−ス（通常、セラミッ
クス製）であり、フラックス塗布低融点金属片を包囲し
ている。５はケ−ス開口４２とリ−ド線１，１との間の
ガラス封止部であり、ケ−ス４内は５mmHgよりも高真空
度に減圧するか、不活性ガスを充満してある。FIG. 3A shows a flat-case type alloy type temperature fuse according to the present invention, and FIG. 3B shows a cross-sectional view taken along the line of FIG. 3A. ing. In (a) of FIG. 3 and (b) of FIG. 3, 1 and 1 are lead wires (usually copper wires) arranged in parallel, and 2 is a butt joint between the ends of the lead wires 1 and 1. Low melting point metal pieces bridged by welding,
3 is a flux applied to the low melting point metal piece 2. 4 is a flat case (usually made of ceramics) having an opening 42 on one side and surrounds the flux-coated low melting point metal piece. Reference numeral 5 denotes a glass sealing portion between the case opening 42 and the lead wires 1 and 1, and the inside of the case 4 is depressurized to a vacuum degree higher than 5 mmHg or filled with an inert gas. is there.
【００１５】この扁平ケ−スタイプの合金型温度ヒュ−
ズは、並行リ−ド線１，１に金属リング５１をガラス５
の封着で取付け、次いで、これらのリ−ド線１，１の先
端間に低融点金属片２を橋設し、この低融点金属片２に
フラックス３を塗布し、開口部内周面に予め金属または
金属酸化物をメタライジングしたセラミックス扁平ケ−
ス４（例えば、セラミックスがアルミナの場合、上記と
同様に、アルミン酸マンガン膜をＭｏ−Ｍｎ法により予
めメタライジングしておく）をフラックス塗布低融点金
属片上に被せ、ケ−ス４内を真空引きするか、不活性ガ
スを封入のうえ、上記金属リング５１とセラミックス扁
平ケ−スの開口４２内面との間をはんだ付けで封止する
ことにより製造できる。This flat case type alloy type temperature fuse
Has a metal ring 51 on the parallel lead wires 1, 1 and a glass 5
Then, a low melting point metal piece 2 is bridged between the ends of the lead wires 1 and 1, flux 3 is applied to the low melting point metal piece 2, and the inner peripheral surface of the opening is preliminarily attached. Ceramic flat metallized metal or metal oxide
A flux 4 (for example, when the ceramics is alumina, a manganese aluminate film is metallized in advance by the Mo-Mn method) is coated on the flux-coated low-melting metal piece, and the inside of the case 4 is vacuumed. It can be manufactured by drawing or enclosing an inert gas, and then sealing between the metal ring 51 and the inner surface of the opening 42 of the ceramic flat case by soldering.
【００１６】上記において、不活性ガスには、窒素、ア
ルゴン、クリプトン等を使用できる。また、低融点金属
片には、錫、鉛、インジュウム、ビスマス、カドミュウ
ム等の２種以上から成る共晶合金を使用することが好ま
しく、フラックスには、ロジン（天然ロジン、精製ロジ
ン、変成ロジン、水添ロジン、不均化ロジン等）に活性
剤として有機塩化物または有機臭化物（例えば、ジエチ
ルアミンの塩酸塩または臭酸塩）等を添加したものを使
用できる。上記において、図示はされていないが、ガラ
ス封止部に排気管を貫通しておき、ケ−ス内の減圧は排
気管を真空引きのもとで閉塞することにより、またケ−
ス内の不活性ガスの充満は排気管を真空引き後、不活性
ガスを封入のうえ閉塞することにより行うこともでき
る。In the above, as the inert gas, nitrogen, argon, krypton or the like can be used. Further, it is preferable to use a eutectic alloy composed of two or more kinds such as tin, lead, indium, bismuth and cadmium for the low melting point metal piece, and for the flux, rosin (natural rosin, purified rosin, modified rosin, It is possible to use hydrogen chloride rosin, disproportionated rosin, etc.) to which an organic chloride or organic bromide (for example, diethylamine hydrochloride or hydrobromide) is added as an activator. In the above, although not shown in the drawing, the exhaust pipe is pierced through the glass sealing portion, and the pressure in the case is reduced by closing the exhaust pipe under a vacuum.
It is also possible to fill the space with an inert gas by evacuating the exhaust pipe, sealing the inert gas, and then closing the space.
【００１７】[0017]
【作用】ガラス封止によるハ−メチックシ−ルのもと
で、ケ−ス内が減圧または不活性ガスの充満により酸素
の存在しない不活性状態に保たれているから、低融点金
属片を長期にわたり酸化膜のない状態に保持できる。そ
して、機器の負荷に基づくヒ−トサイクルに曝される回
数の少ない初期においては、低融点金属片に充分な量の
フラックスが付着しているから、低融点金属片が溶融す
ると、その溶融金属のリ−ド線端への濡れ性がフラック
スのために高められ、リ−ド線端を核とする溶融金属の
球状化がスム−ズに生じ、溶融金属が迅速に分断され
る。従って、合金型温度ヒュ−ズの初期での作動を極め
て迅速に生じさせることができる。In the case of hermetically sealed glass, the inside of the case is kept in an inactive state in which oxygen does not exist by depressurization or filling with an inert gas. The oxide film can be maintained over the entire length. Then, in the early stage when the number of times of exposure to a heat cycle based on the load of the equipment is small, a sufficient amount of flux adheres to the low melting point metal piece. The wettability of the lead wire end to the lead wire end is enhanced by the flux, and the spheroidization of the molten metal centered on the lead wire end occurs in a smooth manner, and the molten metal is rapidly divided. Therefore, the initial operation of the alloy type temperature fuse can be generated very quickly.
【００１８】機器の負荷に基づくヒ−トサイクルに曝さ
れる回数が多い長期経過後においては、低融点金属片の
フラックスが少なくなって低融点金属片が露出するに至
っても、ケ−ス内が酸素の存在しない不活性状態に保た
れ、低融点金属片が酸化膜のない状態に保持されるか
ら、この時でも、溶融金属の球状化分断を充分に迅速に
行わせることができる。従って、長期経過後でも、合金
型温度ヒュ−ズの作動迅速性を充分に確保できる。After a long period of frequent exposure to a heat cycle due to the load of equipment, even if the low melting point metal piece is exposed to the low melting point metal flux, the low melting point metal piece is exposed to the inside of the case. Is maintained in an inactive state in which oxygen does not exist, and the low melting point metal piece is maintained in a state without an oxide film, so that even at this time, the spheroidization of the molten metal can be performed sufficiently quickly. Therefore, even after a long period of time, the operating speed of the alloy type temperature fuse can be sufficiently ensured.
【００１９】[0019]
〔実施例１〕図１において、リ−ド線１，１には、外径
０．５ｍｍの銅線を使用し、低融点金属片２には外径
０．５ｍｍ、長さ３．０ｍｍ、融点９８℃の低融点合金
（Ｐｂ：３１重量％、Ｓｎ：１９重量％、Ｂｉ：５０重
量％の三元共晶合金）を使用した。筒状ケ−ス４には内
径１．４ｍｍ、長さ１０ｍｍのセラミックス筒を使用
し、金属リング５１は銅製とした。フラックス３には、
天然ロジンにジエチルアミン塩酸塩１重量％添加したも
のを用いた。また、金属リング５１と筒状ケ−ス４の封
止には、融点１４５℃の共晶はんだを使用し、筒状ケ−
ス４内は５mmHgよりも高真空度で減圧した。[Embodiment 1] In FIG. 1, copper wires having an outer diameter of 0.5 mm are used for the lead wires 1 and 1, and the low melting point metal piece 2 has an outer diameter of 0.5 mm and a length of 3.0 mm. A low melting point alloy having a melting point of 98 ° C. (Pb: 31 wt%, Sn: 19 wt%, Bi: 50 wt% ternary eutectic alloy) was used. For the cylindrical case 4, a ceramic cylinder having an inner diameter of 1.4 mm and a length of 10 mm was used, and the metal ring 51 was made of copper. Flux 3 has
A natural rosin added with 1% by weight of diethylamine hydrochloride was used. Further, eutectic solder having a melting point of 145 ° C. is used to seal the metal ring 51 and the tubular case 4 into a tubular case.
The inside of the space 4 was decompressed at a vacuum degree higher than 5 mmHg.
【００２０】〔比較例１〕キャツプ内の雰囲気を常圧の
空気とした以外実施例１に同じとした。Comparative Example 1 The same as Example 1 except that the atmosphere inside the cap was atmospheric air.
【００２１】〔比較例２〕低融点金属片にフラックスを
塗布せず、これ以外は実施例１に同じとした。Comparative Example 2 The same procedure as in Example 1 was carried out except that no flux was applied to the low melting point metal piece.
【００２２】これらの実施例並びに比較例につき（各試
料数は５０箇）、温度サイクルを課してない初期での作
動特性を評価するために、各試料を温度１００℃のシリ
コンオイル中に投入し、作動するまでの時間を測定した
ところ、実施例１では１４秒（平均値、以下同じ）、比
較例１では１４秒であったのに対し、比較例２では１７
秒と長く、実施例１が比較例２に較べ、初期での作動迅
速性に優れていることを確認できた。For each of these examples and comparative examples (each sample number is 50), each sample was put into a silicone oil at a temperature of 100 ° C. in order to evaluate the operation characteristics in the initial stage without temperature cycle. Then, when the time until the operation was measured, it was 14 seconds in Example 1 (average value, the same hereinafter) and 14 seconds in Comparative Example 1, whereas it was 17 in Comparative Example 2.
It was confirmed that Example 1 was excellent in quickness of operation at the initial stage as compared with Comparative Example 2 because it was long in seconds.
【００２３】また、上記の実施例並びに比較例につき
（各試料数は５０箇）、長期間機器のヒ−トサイクルに
曝された後の長期経過での作動特性を評価するために、
８０℃３０分、室温１５分を１サイクルとする温度サイ
クルを５００サイクル行った後、作動温度を測定したと
ころ、実施例１では９８℃（平均値、以下同じ）、比較
例２では１００℃であったのに対し、比較例１では１０
３℃と公称作動温度（初期値）からのずれが顕著であ
り、実施例１が比較例１に較べ、長期経過後での作動迅
速性に優れていることを確認できた。In addition, for the above-mentioned examples and comparative examples (each sample number is 50), in order to evaluate the operating characteristics in the long term after being exposed to the heat cycle of the equipment for a long time,
After performing 500 cycles of a temperature cycle of 80 ° C. for 30 minutes and room temperature for 15 minutes, the operating temperature was measured and found to be 98 ° C. in Example 1 (average value, the same below), and 100 ° C. in Comparative Example 2. However, in Comparative Example 1, 10
The deviation from the nominal operating temperature (initial value) of 3 ° C. was remarkable, and it was confirmed that Example 1 was superior to Comparative Example 1 in the quickness of operation after a long period of time.
【００２４】〔実施例２〕実施例１に対し、キャップ内
に窒素ガスを封入した以外、実施例１に同じとし、上記
初期での作動性並びに長期経過後での作動性を測定した
ところ、実施例１と実質的に同じ成績であった。Example 2 The same as Example 1 except that nitrogen gas was sealed in the cap, and the operability at the initial stage and the operability after a long period of time were measured. The results were substantially the same as in Example 1.
【００２５】[0025]
【発明の効果】本発明に係る合金型温度ヒュ−ズにおい
ては、ガラス封止によるハ−メチックシ−ルのもとで、
ケ−ス内が減圧または不活性ガスの充満により酸素の存
在しない不活性状態に保たれているから、低融点金属片
を長期にわたり酸化膜のない状態に保持でき、長期経過
後での作動特性を充分に保証でき、しかも、初期での作
動特性については、フラックスによる濡れ性向上効果が
相乗的に作用することからも、著しく優れたものにでき
る。In the alloy type temperature fuse according to the present invention, under the hermetic seal by glass sealing,
Since the inside of the case is kept in an inactive state in which oxygen does not exist by reducing pressure or filling with an inert gas, the low melting point metal piece can be kept in a state without an oxide film for a long period of time, and the operating characteristics after a long time elapses. Can be sufficiently ensured, and the initial operating characteristics can be remarkably excellent because the effect of improving the wettability by the flux acts synergistically.
【図１】本発明に係る筒状ケ−スタイプの合金型温度ヒ
ュ−ズを示す説明図である。FIG. 1 is an explanatory view showing an alloy type temperature fuse of a cylindrical case type according to the present invention.
【図２】本発明に係るキャップタイプの合金型温度ヒュ
−ズを示す説明図である。FIG. 2 is an explanatory view showing a cap type alloy type temperature fuse according to the present invention.
【図３】図３の（イ）は本発明に係る扁平ケ−スタイプ
の合金型温度ヒュ−ズを示す説明図、図３の（ロ）は図
３の（イ）におけるロ−ロ断面図である。3 (a) is an explanatory view showing a flat case type alloy type temperature fuse according to the present invention, and FIG. 3 (b) is a cross-sectional view taken along line (b) of FIG. 3 (a). Is.
１ リ−ド線 ２ 低融点金属片 ３ フラックス ４ ケ−ス ５ ガラス 1 Lead wire 2 Low melting point metal piece 3 Flux 4 Case 5 Glass
Claims (2)
低融点金属片にフラックスが塗布され、該フラックス塗
布低融点金属片がケ−スで包囲され、ケ−ス開口とリ−
ド線との間がガラスで封止され、ケ−ス内が減圧されて
いることを特徴とする合金型温度ヒュ−ズ。1. A low melting point metal piece is bridged between lead wires, flux is applied to the low melting point metal piece, and the flux applying low melting point metal piece is surrounded by a case to form a case opening. And Lee
An alloy-type temperature fuse characterized in that the space between the lead wire and the lead wire is sealed with glass, and the inside of the case is depressurized.
低融点金属片にフラックスが塗布され、該フラックス塗
布低融点金属片がケ−スで包囲され、ケ−ス開口とリ−
ド線との間がガラスで封止され、ケ−ス内に不活性ガス
が充満されていることを特徴とする合金型温度ヒュ−
ズ。2. A low melting point metal piece is bridged between lead wires, flux is applied to the low melting point metal piece, the flux applying low melting point metal piece is surrounded by a case, and a case opening is formed. And Lee
The alloy type temperature fuse is characterized in that the case and the wire are sealed with glass and the case is filled with an inert gas.
Z.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20816794A JPH0850842A (en) | 1994-08-08 | 1994-08-08 | Alloy type temperature fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20816794A JPH0850842A (en) | 1994-08-08 | 1994-08-08 | Alloy type temperature fuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0850842A true JPH0850842A (en) | 1996-02-20 |
Family
ID=16551771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20816794A Pending JPH0850842A (en) | 1994-08-08 | 1994-08-08 | Alloy type temperature fuse |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0850842A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002099827A1 (en) * | 2001-06-05 | 2002-12-12 | Matsushita Electric Industrial Co., Ltd. | Temperature fuse, and battery using the same |
| JP2012059719A (en) * | 2011-12-26 | 2012-03-22 | Sony Chemical & Information Device Corp | Protection element, and battery pack |
-
1994
- 1994-08-08 JP JP20816794A patent/JPH0850842A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002099827A1 (en) * | 2001-06-05 | 2002-12-12 | Matsushita Electric Industrial Co., Ltd. | Temperature fuse, and battery using the same |
| US7473487B2 (en) | 2001-06-05 | 2009-01-06 | Panasonic Corporation | Temperature fuse, and battery using the same |
| US7718308B2 (en) | 2001-06-05 | 2010-05-18 | Panasonic Corporation | Temperature fuse and battery using the same |
| JP2012059719A (en) * | 2011-12-26 | 2012-03-22 | Sony Chemical & Information Device Corp | Protection element, and battery pack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3668391A (en) | Tungsten halogen lamp having improved seal of molybdenum aluminide | |
| JPS63271842A (en) | Fuse and its manufacture | |
| KR100335558B1 (en) | Manufacturing method of circuit protection device and circuit protection device | |
| KR20060130548A (en) | Lamp | |
| JPH0850842A (en) | Alloy type temperature fuse | |
| EP0160316B1 (en) | Single-ended high intensity discharge lamp and manufacture | |
| US4668204A (en) | Single-ended high intensity discharge lamp and manufacture | |
| JPH05251052A (en) | High-pressure discharge lamp | |
| US4208607A (en) | Electric lamp with tin or lead alloy plug for lead-in | |
| US4236045A (en) | Electric lamp | |
| JPS6030020A (en) | Temperature fuse | |
| JP3075506B2 (en) | Low melting point glass and lamp seal using the same | |
| JP2001243863A (en) | Fuse with flux | |
| JP3173086B2 (en) | Fusible alloy type thermal fuse | |
| JP4156406B2 (en) | Thermo protector and method of operating thermo protector | |
| US3147361A (en) | Vacuum tight joint and method of making such joint | |
| JP3403993B2 (en) | Fuse with flux | |
| WO2021015049A1 (en) | Hermetic terminal | |
| JP4946419B2 (en) | Thermal fuse and manufacturing method thereof | |
| US3953757A (en) | Solder sealed light bulb | |
| JPH11111138A (en) | Substrate type thermal fuse, thermal fuse provided with substrate type resistor, and manufacture of these fuses | |
| JP2004247269A (en) | Tubular casing type alloyed thermal fuse | |
| JP3274699B2 (en) | Small current fuse | |
| JPS5812345Y2 (en) | Vacuum cutter | |
| JPH01150463A (en) | Soldering method and silver solder material using therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A977 | Report on retrieval |
Effective date: 20040614 Free format text: JAPANESE INTERMEDIATE CODE: A971007 |
|
| A131 | Notification of reasons for refusal |
Effective date: 20040706 Free format text: JAPANESE INTERMEDIATE CODE: A131 |
|
| A02 | Decision of refusal |
Effective date: 20041109 Free format text: JAPANESE INTERMEDIATE CODE: A02 |