JPS62105329A - Manufacture of thermal fuse - Google Patents

Manufacture of thermal fuse

Info

Publication number
JPS62105329A
JPS62105329A JP24607285A JP24607285A JPS62105329A JP S62105329 A JPS62105329 A JP S62105329A JP 24607285 A JP24607285 A JP 24607285A JP 24607285 A JP24607285 A JP 24607285A JP S62105329 A JPS62105329 A JP S62105329A
Authority
JP
Japan
Prior art keywords
fusible alloy
lead wire
welding
lead wires
temperature fuse
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
Application number
JP24607285A
Other languages
Japanese (ja)
Inventor
中里 兼次
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renesas Semiconductor Manufacturing Co Ltd
Kansai Nippon Electric Co Ltd
Original Assignee
Renesas Semiconductor Manufacturing Co Ltd
Kansai Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Renesas Semiconductor Manufacturing Co Ltd, Kansai Nippon Electric Co Ltd filed Critical Renesas Semiconductor Manufacturing Co Ltd
Priority to JP24607285A priority Critical patent/JPS62105329A/en
Publication of JPS62105329A publication Critical patent/JPS62105329A/en
Pending legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 産1圧少且朋豆立 本発明は一対のリード線に可溶合金を直角に溶接したラ
ジアル型温度ヒユーズを製造する方法に関するものであ
る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a radial temperature fuse in which a fusible alloy is welded at right angles to a pair of lead wires.

従米皇肢血 従来、可溶合金型の温度ヒユーズで、例えば熱源である
モータとかリレーに近づけるためこれらに巻き込んで用
いるものにはアキシャル型とラジアル型の2つの型があ
り、最初にアキシャル型を第7図を参照して次に示す。
Conventionally, there are two types of fusible alloy type temperature fuses, axial type and radial type, which are used by wrapping them around heat sources such as motors and relays to bring them close to them. The following will be described with reference to FIG.

同図に示すように、アキシャル型温度ヒユーズ(1)は
、同一直線上に対向・配置した一対のリード線(2)(
2)の間に可溶合金(3)を梼渡しして溶接した後、可
溶合金(2)の表面にフラックス(F)を塗布し、さら
にこれをセラミック製の絶縁管(4)内に収納してその
両端開口部を樹脂(5)(5)にて封止したものである
〔実開昭60−76844号〕。そして、周囲が過熱し
たとき、第8図に示すように、可溶合金(3)が溶けて
リード線(2)  (2)の先端に球状に凝集して、リ
ード線(2)(2)間が開放状態になる。
As shown in the figure, an axial temperature fuse (1) consists of a pair of lead wires (2) (
After passing the fusible alloy (3) between 2) and welding, flux (F) is applied to the surface of the fusible alloy (2), and this is then placed inside the ceramic insulating tube (4). It is housed and its openings at both ends are sealed with resin (5) (5) [Utility Model Application No. 60-76844]. When the surrounding area becomes overheated, the fusible alloy (3) melts and aggregates into a spherical shape at the tip of the lead wire (2) (2), as shown in Figure 8. The gap becomes open.

次に、ラジアル型を第9図を参照して示1−0同図に示
すようにラジアル型の温度ヒヱーズ(6)は、平行に並
べて配置した一対のリード線(7)(7)の各端部間に
可溶合金(8)を橋渡しして溶接した後、可溶合金(8
)の表面にフラックス(F)を塗布し、さらに外装樹脂
(9)にて被覆したものである〔実開昭60−5185
’。
Next, the radial type is shown in FIG. After bridging and welding the fusible alloy (8) between the ends, the fusible alloy (8)
) is coated with flux (F) and further covered with exterior resin (9) [Utility Model Publication No. 60-5185
'.

号〕。そして、周囲が過熱したとき、可溶合金く8)が
溶けてリード線(7)(7)の先端に凝集して、リード
線(7)(7)間が開放状態になる。このラジアル型温
度ヒユーズ(6)は、前記アキシャル型温度ヒユーズ(
1)に比較して厚さが小さく、巻線間に巻込んで使用す
るような場合に賞月されている。
issue〕. Then, when the surroundings become overheated, the fusible alloy 8) melts and aggregates at the tips of the lead wires (7) (7), resulting in an open state between the lead wires (7) (7). This radial type temperature fuse (6) is similar to the axial type temperature fuse (
It is thinner than 1) and is used when it is wound between windings.

上記ラジアル型のリード線(7)に可溶合金(8)を溶
接する場合、例えばまず1、第10図に示すような細長
い円柱状の可溶合金(10)を所定長さに切り出して可
溶合金(8)を製作する。そして、第11図に示すよう
に、平行に並べて伏せ置きした一対のリード線(7)(
7)の各端部(7a)  (7a)間に可溶合金(8)
を直角に橋渡しして載せ、リード線(7)(7)の可溶
合金(8)との接触部近傍を加熱する。そうすると、溶
融しまた可溶合金(8)が、第12図に示すように、リ
ード線(7)(7)の先端部(7a)(7a)にその断
面約半分の深さまでかぶさって溶接される。
When welding the fusible alloy (8) to the radial lead wire (7), for example, first 1, cut out a slender cylindrical fusible alloy (10) to a predetermined length as shown in FIG. Produce molten alloy (8). Then, as shown in Fig. 11, a pair of lead wires (7) (
7) between each end (7a) (7a) of the fusible alloy (8)
The lead wires (7) and (7) are placed in the vicinity of the contact portion with the fusible alloy (8). Then, the molten and fusible alloy (8) is welded, covering the tips (7a) (7a) of the lead wires (7) (7) to a depth of about half of their cross sections, as shown in Fig. 12. Ru.

又、リード線(7)(7)と可溶合金(8)の接触部を
加熱するに際しCは、上記接触部のみに熱が与えられる
よフにするたンう、熱伝導性の良い銅からなるリード線
(7)(7)をヒータにて加熱し、リード線(7)(7
)側から上記接触部に熱を伝える〔特開昭58−533
86号〕2金坊、が勉−K1えよ」L↓−ま−1正立と
ころで、上述したように、ラジアル型温度ヒユーズ(6
)のリード線(7)(7)に可溶合金(8)を溶接する
に際しては、伏せ五きしまた一対のリード線(7)(7
)間に可溶合金(8)を直角に橋渡しして載せ溶接する
。この時、円柱状のリード線(7)(7)に円柱状の可
溶合金(8)を載せるため接触部は点接触となり接触面
積が非常に小さく 〔第11図参照〕リード線(7)(
7)から可溶合金く8)への熱伝導が悪くなる。そこで
、リード1!1(7)(7)から可溶合金(8)へ溶接
十分な熱を伝えるには、ヒータの加熱力を上げなければ
ならないが、その結果、リード線(7)(7)との接触
部に留まらず可溶合金(8)の全体が溶融してしまい易
い。又、第12図に示すように、溶接後、可溶合金(8
)はリード線(7)にその断面約半分の深さまで部分的
にかぶさるため、この部分の厚さくT)はリード線(7
)の太さより大きくなる。そのため、温度ヒユーズ(6
)を、例えばモータとかリレーの巻線間に巻き込んだ場
合、厚さくT)の分だけ膨らんで全体寸法が大きくなり
、改善の余地があった。
In addition, when heating the contact part between the lead wire (7) (7) and the fusible alloy (8), C is made of copper, which has good thermal conductivity, so that heat is applied only to the contact part. Heating the lead wires (7) (7) with a heater, the lead wires (7) (7)
) side to the above-mentioned contact area [JP-A-58-533
No. 86] 2Kinbo, Gatomu-K1 Eyo'' L↓-Ma-1 erect By the way, as mentioned above, the radial type temperature fuse (6
When welding the fusible alloy (8) to the lead wires (7) (7) of
) and weld the fusible alloy (8) bridging at right angles between the two. At this time, the cylindrical lead wire (7) (7) is placed on the cylindrical fusible alloy (8), so the contact area becomes point contact and the contact area is very small. [See Figure 11] Lead wire (7) (
Heat conduction from 7) to the fusible alloy 8) deteriorates. Therefore, in order to transfer sufficient heat for welding from the leads 1!1 (7) (7) to the fusible alloy (8), the heating power of the heater must be increased, but as a result, the heating power of the heater must be increased. ) The entire fusible alloy (8) is likely to melt, not just the contact area with the melted alloy (8). Furthermore, as shown in Fig. 12, after welding, the fusible alloy (8
) partially covers the lead wire (7) to about half the depth of its cross section, so the thickness T) of this part is larger than the lead wire (7).
) is larger than the thickness. Therefore, the temperature fuse (6
) is wound between the windings of a motor or relay, for example, it swells by the thickness T), increasing the overall size, leaving room for improvement.

丘1 占  ゛ るための一 本発明は、平行・配置した一対のリード線と、該リード
線上に直角に橋絡・配置した可溶合金とを溶接して温度
ヒユーズを製造するにあたり、上記可溶合金のリード線
との接触部を偏平にし、かつ、リード線側から上記接触
部に熱を与えてリード線と可溶合金とを溶接したことを
特徴とする。
The present invention is a method for manufacturing a temperature fuse by welding a pair of lead wires arranged parallel to each other and a fusible alloy bridged and arranged at right angles to the lead wires. The lead wire and the fusible alloy are welded by making the contact portion of the molten alloy flat and applying heat to the contact portion from the lead wire side.

■ リード線との接触部を偏平にした可溶合金をリード線側
から熱を与えて溶接すると、接触部の面積が大きくなっ
て熱伝導が良くなる。
■ When welding a fusible alloy with a flattened contact area with the lead wire by applying heat from the lead wire side, the area of the contact area increases and heat conduction improves.

皇五凱 本考案の実施例を第1図乃至第6図を参照して以下説明
する。第1図乃至第3図は、本考案に係る温度ヒユーズ
の製造方法に用いられる可溶合金(11)の斜視図、平
面図及び正面図を示し、これらの図に示すように、上記
可溶合金(11)は両端のリード線(7)(7)との接
触部(11a )  (11a )をプレス等にて偏平
に成形しており、他の部分との境界部cii b > 
 cii b )を曲面に形成している。
An embodiment of the present invention will be described below with reference to FIGS. 1 to 6. 1 to 3 show a perspective view, a plan view, and a front view of the fusible alloy (11) used in the method for manufacturing a temperature fuse according to the present invention. The alloy (11) is formed into a flat shape by pressing etc. at the contact parts (11a) (11a) with the lead wires (7) (7) at both ends, and the boundary part with other parts cii b >
cii b ) is formed into a curved surface.

上記可溶合金(11)を用いた温度ヒユーズの製造方法
を、第4図乃至第6図を参照し2て以下示す。まず、第
4図及び第5図に示すように、平行に並べて伏せ置きし
た一対のリード線(7)(7)の各端部(7a)  (
7a)間に可溶合金(11)を直角に橋渡しして載せる
と、リード線(7)(7)は可溶合金(11)の偏平な
接触角(lla)(lla)及びその曲面状の境界部(
11b )  01 b )に接触し、可溶合金(11
)と面接触するため接触面積が十分に大きくなる。この
状態で、第5図に示すように、リード線(7)  (7
)に直角にヒータ(12)を橋渡しして載せリード線(
7)(7)を加熱すると、熱がリード線(7)(7)を
伝わって上記接触部(11a )  (11a )に与
えられる。この時、上述したように、リード線<7)(
7)との接触面積は十分に大きく熱伝導性が良くなるた
めヒータ温度を従来より低くできる。しかも、接触部(
lla)(lla)は偏平で可溶合金(11)の他の部
分より熱容量が小さくなるため、接触部(lla)(l
la)の方がより高温になって可溶合金(11)全体が
溶融しにくくなる。このようにして、可溶合金(11)
の接触部(11a )  (11a )を加熱すると、
第4図及び第6図に示すように、可溶合金(11)は加
熱前からリード線(7)(7)にかぶさっており、しか
も偏平であるため、軟らかくなるとリード線(7)の外
周に回り込んでほぼ全周にかぶさる。そこで、溶接後、
この部分の厚さく1)は従来の厚さくT)よりも小さく
なってより薄くなる。実測によれば、T=0.85m、
t =0.75mになって(1)は従来よりも約15%
減少する。
A method of manufacturing a temperature fuse using the fusible alloy (11) will be described below with reference to FIGS. 4 to 6. First, as shown in FIGS. 4 and 5, each end (7a) of a pair of lead wires (7) (7) arranged in parallel and placed face down (
7a) When the fusible alloy (11) is bridged at right angles and placed between them, the lead wires (7) (7) will be connected to the flat contact angle (lla) (lla) of the fusible alloy (11) and its curved surface. Boundary (
11b) 01b), the fusible alloy (11b)
), the contact area is sufficiently large. In this state, as shown in Figure 5, the lead wire (7) (7
) and place the heater (12) across it at right angles to the lead wire (
7) When (7) is heated, heat is transmitted through the lead wires (7) (7) and is applied to the contact portions (11a) (11a). At this time, as mentioned above, the lead wire <7) (
7) Since the contact area with the heater is sufficiently large and the thermal conductivity is improved, the heater temperature can be lower than that of the conventional heater. Moreover, the contact part (
Since the contact area (lla) (lla) is flat and has a smaller heat capacity than other parts of the fusible alloy (11), the contact area (lla) (l
In la), the temperature becomes higher and the entire fusible alloy (11) becomes difficult to melt. In this way, the fusible alloy (11)
When the contact parts (11a) (11a) of (11a) are heated,
As shown in Figures 4 and 6, the fusible alloy (11) covers the lead wires (7) (7) before heating, and since it is flat, when it becomes soft, the outer periphery of the lead wire (7) It goes around and covers almost the entire circumference. Therefore, after welding,
The thickness 1) of this part is smaller and thinner than the conventional thickness T). According to actual measurements, T=0.85m,
When t = 0.75m, (1) is about 15% lower than before.
Decrease.

考案少立釆 本考案によれば、ラジアル型温度ヒユーズのリード線に
可溶合金を溶接するにあたり、可溶合金のリード線との
接触部を偏平にし、かつ、リード線側から与熱するよう
にしたから、可溶合金とリード線との接触面接が大きく
なって熱伝導性が良くなり従来よりも低い温度で溶接で
き、しかも溶接部分の厚さが従来よりも薄くなる。
According to the present invention, when welding a fusible alloy to the lead wire of a radial type temperature fuse, the contact part of the fusible alloy with the lead wire is made flat, and the heat is applied from the lead wire side. Because of this, the contact area between the fusible alloy and the lead wire becomes larger, improving thermal conductivity and welding can be performed at a lower temperature than before, and the thickness of the welded part is thinner than before.

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

第1図と第2図と第3図は本考案に係る温度ヒユーズの
製造方法に用いられる可溶合金の斜視図と平面図と正面
図、第4図と第5図はラジアル型温度ヒユーズのリード
線と第1図の可溶合金の溶接前の正面図と平面図、第6
図は第4図及び第5図のリード線と可溶合金の溶接後の
正面図である。 第7図はアキシャル型温度ヒュースの断面図、第8図は
第7図の温度ヒユーズの動作後の要部平面図、第9図は
ラジアル型温度ヒユーズの断面図、!@10図は円柱状
可溶合金の斜視図、第11図と第12図は従来のラジア
ル型温度ヒユーズにおけるリード線と可溶合金の溶接前
と溶接後の各正面図である6 (6) 一温度ヒユーズ、(7) −リード線、(11
)−可溶合金、(11a ) −=−接触部。
Figures 1, 2, and 3 are perspective views, plan views, and front views of a fusible alloy used in the method of manufacturing a temperature fuse according to the present invention, and Figures 4 and 5 are of a radial type temperature fuse. Front view and plan view before welding of the lead wire and the fusible alloy shown in Fig. 1, No. 6
The figure is a front view of the lead wire and fusible alloy shown in FIGS. 4 and 5 after welding. Fig. 7 is a cross-sectional view of an axial type temperature fuse, Fig. 8 is a plan view of the main part of the temperature fuse shown in Fig. 7 after operation, and Fig. 9 is a cross-sectional view of a radial type temperature fuse. @Figure 10 is a perspective view of a cylindrical fusible alloy, and Figures 11 and 12 are front views of the lead wire and fusible alloy in a conventional radial temperature fuse before and after welding.6 (6) One temperature fuse, (7) - Lead wire, (11
)-fusible alloy, (11a) -=-contact part.

Claims (1)

【特許請求の範囲】[Claims] (1)平行配置した一対のリード線と、該リード線上に
直角に橋絡配置した可溶合金とを溶接して温度ヒューズ
を製造するにあたり、 上記可溶合金のリード線との接触部を偏平にし、かつ、
リード線側から上記接触部に熱を与えてリード線と可溶
合金とを溶接することを特徴とする温度ヒューズの製造
方法。
(1) When manufacturing a thermal fuse by welding a pair of parallel lead wires and a fusible alloy bridged at right angles to the lead wires, the contact portion of the fusible alloy with the lead wire is flattened. and,
A method for manufacturing a thermal fuse, characterized in that the lead wire and the fusible alloy are welded by applying heat to the contact portion from the lead wire side.
JP24607285A 1985-10-31 1985-10-31 Manufacture of thermal fuse Pending JPS62105329A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24607285A JPS62105329A (en) 1985-10-31 1985-10-31 Manufacture of thermal fuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24607285A JPS62105329A (en) 1985-10-31 1985-10-31 Manufacture of thermal fuse

Publications (1)

Publication Number Publication Date
JPS62105329A true JPS62105329A (en) 1987-05-15

Family

ID=17143049

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24607285A Pending JPS62105329A (en) 1985-10-31 1985-10-31 Manufacture of thermal fuse

Country Status (1)

Country Link
JP (1) JPS62105329A (en)

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