JPH0436526Y2 - - Google Patents
Info
- Publication number
- JPH0436526Y2 JPH0436526Y2 JP5907987U JP5907987U JPH0436526Y2 JP H0436526 Y2 JPH0436526 Y2 JP H0436526Y2 JP 5907987 U JP5907987 U JP 5907987U JP 5907987 U JP5907987 U JP 5907987U JP H0436526 Y2 JPH0436526 Y2 JP H0436526Y2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- lead terminal
- sensitive
- case
- housed
- 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.)
- Expired
Links
- 239000008188 pellet Substances 0.000 claims description 32
- 230000006835 compression Effects 0.000 claims description 12
- 238000007906 compression Methods 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000011368 organic material Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 description 8
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 235000011037 adipic acid Nutrition 0.000 description 2
- 239000001361 adipic acid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Landscapes
- Fuses (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は産業機器及び家庭電気器具の使用時に
おける温度の過昇異常を感知し、電気回路の遮断
を行うことにより、機器の損傷事故を未然に防止
し、さらに、火災を予防するための感温ペレツト
タイプの温度ヒユーズに関するものである。[Detailed description of the invention] [Industrial application field] This invention detects an abnormal temperature rise during the use of industrial equipment and home appliances, and interrupts the electric circuit to prevent equipment damage. The present invention relates to a temperature-sensitive pellet type temperature fuse for prevention and prevention of fires.
従来、この種の温度ヒユーズは、第３図及び第
４図に示すような構成のものが使用されていた。
１はケースであり、入力側に開口を有し、出力側
に底面を有するＵ字筒形状からなつている。前記
ケース１の出力側には、感温ペレツト２が収納さ
れており、入力側には、絶縁ブツシング３が収納
されている。また、前記ケース１の底面には、リ
ード端子４が圧着されており、一方、開口から
は、リード端子５が内方向に絶縁ブツシング３に
貫挿されており、その開口は、封口樹脂６により
閉塞されている。更に、前記感温ペレツト２と絶
縁ブツシング３との間には、可動接片７が出力側
の押圧板８，９に挟持された強圧縮ばね１０と入
力側の弱圧縮ばね１１とを介在させてリード端子
５の先端に設けた固定接点１２と接触するように
収納されている。
Conventionally, this type of temperature fuse has been used having a configuration as shown in FIGS. 3 and 4.
Reference numeral 1 denotes a case, which has a U-shaped cylinder shape with an opening on the input side and a bottom surface on the output side. A temperature-sensitive pellet 2 is housed on the output side of the case 1, and an insulating bushing 3 is housed on the input side. Further, a lead terminal 4 is crimped to the bottom surface of the case 1, and a lead terminal 5 is inserted inward through an insulating bushing 3 from the opening, and the opening is sealed with a sealing resin 6. It's blocked. Further, between the temperature-sensitive pellet 2 and the insulating bushing 3, the movable contact piece 7 interposes a strong compression spring 10 held between the output side press plates 8 and 9 and a weak compression spring 11 on the input side. The terminal 5 is housed so as to be in contact with a fixed contact 12 provided at the tip of the lead terminal 5.
従来、この種の温度ヒユーズでは、感温ペレツ
ト２の使用有機物質であるアジピン酸にガラス粉
末を混合し、この混合物質で感温ペレツト２が成
形されていた。ところが、感温ペレツト２の溶解
精度が低いため、動作温度試験においてもばらつ
きが目立ち、熱伝導性の劣化が問題となり、ま
た、安息角が大きくなり、感温ペレツト２の成形
時において混合物質の型への流入が悪いため、感
温ペレツト２の成形が難しくなる等の問題があつ
た。
Conventionally, in this type of temperature fuse, glass powder was mixed with adipic acid, which is an organic substance used in the temperature-sensitive pellets 2, and the temperature-sensitive pellets 2 were formed with this mixed material. However, due to the low melting accuracy of the temperature-sensitive pellets 2, variations are noticeable even in the operating temperature test, deterioration of thermal conductivity becomes a problem, and the angle of repose becomes large, making it difficult for the mixed material to melt during the molding of the temperature-sensitive pellets 2. Because of the poor flow into the mold, there were problems such as difficulty in molding the temperature-sensitive pellets 2.
本考案はこのような問題点を解消し、性能の安
定した製品を提供するとともに、製造の容易なこ
とを目的として考案されたものであり、感温ペレ
ツト２の使用有機物質に炭化ケイ素粉末を混合し
て感温ペレツト２を成形したものである。
The present invention was devised with the aim of solving these problems, providing a product with stable performance, and making it easy to manufacture. Silicon carbide powder is used as the organic material for thermosensitive pellets 2. The temperature-sensitive pellets 2 are formed by mixing.
感温ペレツト２の溶解精度が高いため、動作温
度試験においてばらつきが減少し、熱伝導性の改
善をもたらし、また、安息角が小さくなり、感温
ペレツト２の成形時において混合物質の型への流
入が良くなるため、感温ペレツト２の成形が容易
になるものである。
The high melting accuracy of the thermal pellets 2 reduces the variation in operating temperature tests, improves thermal conductivity, and also reduces the angle of repose, which improves the flow of the mixture into the mold during molding of the thermal pellets 2. Since the inflow is improved, molding of the temperature-sensitive pellets 2 becomes easier.
以下本考案の実施例を図面に基づき説明する。
第１図及び第２図において、１は、ケースであ
り、入力側に開口を有し、出力側に底面を有する
Ｕ字筒形状からなつている。前記ケース１の出力
側には、感温ペレツト２が収納されており、入力
側には、絶縁ブツシング３が収納されている。ま
た、前記ケース１の底面には、リード端子４が圧
着されており、一方、開口からは、リード端子５
が内方向に絶縁ブツシング３に貫挿されており、
その開口は、封口樹脂６により閉塞されている。
更に、前記感温ペレツト２と絶縁ブツシング３と
の間には、出力側で押圧板８，９により挟持され
た強圧縮ばね１０と入力側の弱圧縮ばね１１とを
介在させて可動接片７がリード端子５の先端に設
けた固定接点１２と接触するように収納されてい
る。
Embodiments of the present invention will be described below based on the drawings.
In FIGS. 1 and 2, reference numeral 1 denotes a case, which has a U-shaped cylinder shape with an opening on the input side and a bottom surface on the output side. A temperature-sensitive pellet 2 is housed on the output side of the case 1, and an insulating bushing 3 is housed on the input side. Further, a lead terminal 4 is crimped on the bottom surface of the case 1, while a lead terminal 5 is inserted from the opening.
is inserted into the insulating bushing 3 inwardly,
The opening is closed with sealing resin 6.
Further, between the temperature-sensitive pellet 2 and the insulating bushing 3, a strong compression spring 10 held between the press plates 8 and 9 on the output side and a weak compression spring 11 on the input side are interposed, and the movable contact piece 7 is housed so as to be in contact with a fixed contact 12 provided at the tip of the lead terminal 5.
次に、本考案の要部を説明する。感温ペレツト
２は、感温ペレツト２の使用有機物質であるアジ
ピン酸に重量比５％の炭化ケイ素粉末を混合して
形成されている。 Next, the main parts of the present invention will be explained. The temperature-sensitive pellets 2 are formed by mixing 5% by weight of silicon carbide powder with adipic acid, which is an organic substance used in the temperature-sensitive pellets 2.
上記温度ヒユーズにおいて、感温ペレツト２の
溶解精度が高いため、動作温度試験においても従
来のσ＝0.3889に対してσ＝0.2605のデータが得
られ、動作温度のばらつきが減少し、熱伝導性の
改善をもたらしている。 In the above temperature fuse, because the melting accuracy of the temperature-sensitive pellet 2 is high, data of σ = 0.2605 was obtained in the operating temperature test, compared to the conventional σ = 0.3889, reducing the variation in the operating temperature and improving the thermal conductivity. is bringing about improvements.
また安息角が小さくなり、感温ペレツト２の成
形時において混合物質の型への流入が良くなるた
め、感温ペレツト２の成形が容易になるものであ
る。 In addition, the angle of repose becomes smaller, and the mixed substance flows better into the mold during molding of the temperature-sensitive pellets 2, so that molding of the temperature-sensitive pellets 2 becomes easier.
上記のように構成した温度ヒユーズの平常時の
電流経路は、第１図に示すように、リード端子５
を入力側として次のとおりである。 The normal current path of the temperature fuse configured as described above is as shown in FIG.
The input side is as follows.
リード端子５→可動接片７→ケース１→リード
端子４
尚、リード端子５とケース１との電流接続は、
可動接片７が強圧縮ばね１０の押圧によつてリー
ド端子５の固定接点１２に押圧されるとともに、
その可動接片７の外縁が、常時、ケース１の内面
にばね作用で接触することによつて行われてい
る。 Lead terminal 5 → Movable contact piece 7 → Case 1 → Lead terminal 4 The current connection between lead terminal 5 and case 1 is as follows:
The movable contact piece 7 is pressed against the fixed contact 12 of the lead terminal 5 by the pressure of the strong compression spring 10, and
This is achieved by the outer edge of the movable contact piece 7 always being in contact with the inner surface of the case 1 under the action of a spring.
一方、異常時の電流経路は、第２図に示すよう
に、定格温度に達すると、感温ペレツト２が溶融
し、強圧縮ばね１０が解放され、これにより平衡
を保つていた弱圧縮ばね１１の圧縮が解け、可動
接片７が強圧縮ばね１０側に移動し、この結果、
リード端子５の固定接点１２との接触が離れ、ケ
ース１との電路が遮断されることになる。 On the other hand, the current path in the event of an abnormality is as shown in FIG. 2. When the temperature reaches the rated temperature, the temperature-sensitive pellet 2 melts, the strong compression spring 10 is released, and the weak compression spring 11 that has been maintaining equilibrium is released. is released, the movable contact piece 7 moves toward the strong compression spring 10, and as a result,
The lead terminal 5 is no longer in contact with the fixed contact 12, and the electrical path with the case 1 is cut off.
以上説明したように、本考案は、感温ペレツト
の使用有機物質に炭化ケイ素粉末を混合して感温
ペレツトを成形したものであるため、感温ペレツ
トの溶解精度が高くなり、動作温度試験において
もばらつきが減少し、熱伝導性の改善をもたら
し、また、安息角が小さくなり、感温ペレツトの
成形時において混合物質の型への流入が良くな
り、感温ペレツトの成形が容易になり、その結
果、温度ヒユーズの作動精度を高めるとともに、
温度ヒユーズの製造を容易にする等の効果があ
る。
As explained above, in the present invention, the temperature-sensitive pellets are formed by mixing silicon carbide powder with the organic material used in the temperature-sensitive pellets, so the melting accuracy of the temperature-sensitive pellets is high, and the temperature-sensitive pellets are improved in the operating temperature test. Also, the variation is reduced, resulting in improved thermal conductivity, and the angle of repose is reduced, which improves the flow of the mixed substance into the mold during molding of temperature-sensitive pellets, making molding of temperature-sensitive pellets easier. As a result, the operating accuracy of the temperature fuse is improved, and
This has effects such as facilitating the manufacture of temperature fuses.
第１図は本考案の温度ヒユーズの断面図であ
り、第２図は第１図の温度ヒユーズの動作後の状
態を示す断面図であり、第３図は従来の温度ヒユ
ーズの断面図であり、第４図は第３図の動作後の
状態を示す断面図である。
１……ケース、２……感温ペレツト、３……絶
縁ブツシング、４……リード端子、５……リード
端子、６……封口樹脂、７……可動接片、８，９
……押圧板、１０……強圧縮ばね、１１……弱圧
縮ばね、１２……固定接点。
FIG. 1 is a sectional view of the temperature fuse of the present invention, FIG. 2 is a sectional view of the temperature fuse of FIG. 1 after operation, and FIG. 3 is a sectional view of a conventional temperature fuse. , FIG. 4 is a sectional view showing the state after the operation of FIG. 3. 1... Case, 2... Temperature-sensitive pellet, 3... Insulating bushing, 4... Lead terminal, 5... Lead terminal, 6... Sealing resin, 7... Movable contact piece, 8, 9
... Pressing plate, 10 ... Strong compression spring, 11 ... Weak compression spring, 12 ... Fixed contact.
Claims (1)
字筒形状からなるケース１に、その出力側に感温
ペレツト２を、入力側に絶縁ブツシング３をそれ
ぞれ収納し、かつ、その底面にリード端子４を圧
着し、一方、開口からリード端子５を内方向に絶
縁ブツシング３に貫挿し、その開口を封口樹脂６
で閉塞し、更に、前記感温ペレツト２と絶縁ブツ
シング３との間に可動接片７を出力側で押圧板
８，９で挟持した強圧縮ばね１０と入力側の弱圧
縮ばね１１とを介してリード端子５の先端に設け
た固定接点１２と接触するように収納した温度ヒ
ユーズにおいて、 前記感温ペレツト２の使用有機物質に炭化ケイ
素粉末を混合して感温ペレツト２を成形したこと
を特徴とする温度ヒユーズ。[Claims for Utility Model Registration] U having an opening on the input side and a bottom surface on the output side
A thermosensitive pellet 2 is housed on the output side of the case 1, and an insulating bushing 3 is housed on the input side of the case 1, which has a cylindrical shape.The lead terminal 4 is crimped to the bottom of the case 1, and the lead terminal 5 is inserted through the opening. The insulating bushing 3 is inserted inward, and the opening is sealed with a sealing resin 6.
Further, a strong compression spring 10 with a movable contact piece 7 sandwiched between pressing plates 8 and 9 on the output side and a weak compression spring 11 on the input side is inserted between the temperature-sensitive pellet 2 and the insulating bushing 3. The temperature fuse is housed so as to be in contact with the fixed contact 12 provided at the tip of the lead terminal 5, and the temperature-sensitive pellet 2 is formed by mixing silicon carbide powder with the organic material used in the temperature-sensitive pellet 2. temperature fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5907987U JPH0436526Y2 (en) | 1987-04-17 | 1987-04-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5907987U JPH0436526Y2 (en) | 1987-04-17 | 1987-04-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63165739U JPS63165739U (en) | 1988-10-28 |
| JPH0436526Y2 true JPH0436526Y2 (en) | 1992-08-28 |
Family
ID=30890237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5907987U Expired JPH0436526Y2 (en) | 1987-04-17 | 1987-04-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0436526Y2 (en) |
-
1987
- 1987-04-17 JP JP5907987U patent/JPH0436526Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63165739U (en) | 1988-10-28 |
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