JPH0528740Y2 - - Google Patents
Info
- Publication number
- JPH0528740Y2 JPH0528740Y2 JP1988089148U JP8914888U JPH0528740Y2 JP H0528740 Y2 JPH0528740 Y2 JP H0528740Y2 JP 1988089148 U JP1988089148 U JP 1988089148U JP 8914888 U JP8914888 U JP 8914888U JP H0528740 Y2 JPH0528740 Y2 JP H0528740Y2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- temperature fuse
- wire
- temperature
- width
- 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 - Lifetime
Links
- 238000004804 winding Methods 0.000 claims description 50
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 11
- 239000002390 adhesive tape Substances 0.000 claims description 7
- 239000012212 insulator Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 238000009413 insulation Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
Landscapes
- Regulation Of General Use Transformers (AREA)
- Fuses (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
本考案は温度ヒユーズを有するトランスに係
り、特に交流電圧を各種電気製品に供給するため
に低電圧に変換するACアダプタに用いられ、発
熱による破損等から保護するための温度ヒユーズ
を有するトランスに関する。[Detailed description of the invention] Industrial application field The present invention relates to a transformer with a temperature fuse, and is particularly used in AC adapters that convert AC voltage to low voltage for supplying various electrical products, and prevents damage due to heat generation. Relating to a transformer with a temperature fuse for protection from.
従来の技術
第２図Ａ，Ｂは従来の温度ヒユーズ１を有する
電源用トランスを示し、第３図はその回路図を示
す。第２図の端子２及び４はボビン上に設けられ
るが、回路的には端子２，４に家庭用電流が供給
される。端子３はこれとは異なりボビン６上に単
独で設けられる。ボビン６の２つのつば部６ａ及
び６ｂの間には巻線７が巻回されこの巻線７の両
端は端子２及び３に夫々接続される。2. Prior Art FIGS. 2A and 2B show a power transformer having a conventional temperature fuse 1, and FIG. 3 shows its circuit diagram. Terminals 2 and 4 in FIG. 2 are provided on the bobbin, and household current is supplied to the terminals 2 and 4 in terms of the circuit. Unlike this, the terminal 3 is provided independently on the bobbin 6. A winding 7 is wound between the two collars 6a and 6b of the bobbin 6, and both ends of the winding 7 are connected to the terminals 2 and 3, respectively.
端子３及び４の間には所定温度以上で溶断され
る温度ヒユーズ１が接続され、絶縁を確実なもの
とするためのシリコンチユーブ５等により被覆さ
れ巻線７の外周部に添接される。更にこの温度ヒ
ユーズ１及び巻線７の上にはポリエステルテープ
８（第１図参照）が巻回され温度ヒユーズ１を巻
線７に固着するとともに巻線７を外部より絶縁す
る。 A temperature fuse 1 which is blown at a predetermined temperature or higher is connected between the terminals 3 and 4, and is covered with a silicon tube 5 or the like to ensure insulation and is attached to the outer periphery of the winding 7. Further, a polyester tape 8 (see FIG. 1) is wound over the temperature fuse 1 and the winding 7 to fix the temperature fuse 1 to the winding 7 and insulate the winding 7 from the outside.
温度ヒユーズ１は第２図に示すように巻線７と
直列に接続されており、巻線７が異常な発熱を起
こし所定の温度以上となると溶断されて巻線７に
供給される電流を遮断し、異常状態に陥つたと
き、それが感電や火炎などに至らないよう安全を
確保する。 The temperature fuse 1 is connected in series with the winding 7 as shown in Fig. 2, and when the winding 7 generates abnormal heat and reaches a predetermined temperature or higher, it is blown and cuts off the current supplied to the winding 7. And, in the event of an abnormal situation, ensure safety so that it does not lead to electric shock or fire.
考案が解決しようとする課題
しかしながら、温度ヒユーズ１はシリコンチユ
ーブ５によつて被覆されているため感温速度が遅
く、巻線７が発熱してから温度ヒユーズ１が溶断
されるまでにはある程度の時間を要する。このた
め異常状態に陥つてからヒユーズ溶断までの時間
が長いことにより、より高温となる。またこのシ
リコンチユーブ５を温度ヒユーズ１に被覆するこ
とが必要となり製造上の工程数が増加する。Problems to be Solved by the Invention However, since the temperature fuse 1 is covered with the silicon tube 5, the temperature sensing speed is slow, and it takes a certain amount of time from the time the winding 7 generates heat until the temperature fuse 1 is blown. It takes time. Therefore, the time from when the abnormal condition occurs until the fuse blows out is long, resulting in higher temperatures. Furthermore, it is necessary to cover the temperature fuse 1 with the silicon tube 5, which increases the number of manufacturing steps.
一方、温度ヒユーズ１の感温速度を上げるため
第４図に示すように巻線７の上に絶縁用のポリエ
ステルテープ９等を巻回し、この上に温度ヒユー
ズ１及びそのリード線１ａをこのポリエステルテ
ープ９に添接して再びポリエステルテープ１０等
で固定する方法が考えられるが、この場合には巻
線７の巻回部分とつば部６ｂとの境界部分１１に
おける温度ヒユーズ１のリード線１ａと巻線７と
の沿面距離が十分とれず絶縁が確保できないとい
う問題が生じる。 On the other hand, in order to increase the temperature sensing speed of the temperature fuse 1, an insulating polyester tape 9 or the like is wound around the winding 7 as shown in FIG. A method of attaching the tape 9 and fixing it again with a polyester tape 10 or the like may be considered, but in this case, the lead wire 1a of the temperature fuse 1 and the winding at the boundary part 11 between the winding part of the winding 7 and the collar part 6b can be considered. A problem arises in that a sufficient creepage distance from the wire 7 cannot be secured and insulation cannot be ensured.
本考案は上記の点に鑑みてなされたものであ
り、感温速度が高く、かつ沿面距離等の問題を生
じない温度ヒユーズを有するトランスを提供する
ことを目的とする。 The present invention has been made in view of the above points, and it is an object of the present invention to provide a transformer having a temperature fuse that has a high temperature sensing speed and does not cause problems such as creepage distance.
課題を解決するための手段
本考案は、ボビンの一対のつば部の間に巻回さ
れた巻線の外周部に絶縁物を介して添接された温
度ヒユーズを有するトランスにおいて、
前記温度ヒユーズは前記一対のつば部間の幅よ
り狭く、前記温度ヒユーズの本体部分のみを覆う
程度の幅の粘着テープにより前記巻線の外周部に
保持され、
前記一対のつば部は一方つば部の幅が他方のつ
ば部の幅より広く形成されると共に、該一方のつ
ば部に前記温度ヒユーズのリード線を案内する案
内溝が形成され、
前記巻き線の巻回部分とつば部との境界位置で
の前記温度ヒユーズのリード線と前記巻線との距
離を、前記温度ヒユーズが前記巻線に添接される
位置での前記リード線と前記巻線との距離よりも
大きくしてなる。Means for Solving the Problems The present invention provides a transformer having a temperature fuse attached via an insulator to the outer periphery of a winding wound between a pair of flanges of a bobbin, wherein the temperature fuse is It is held on the outer periphery of the winding by an adhesive tape having a width narrower than the width between the pair of flange portions and that is wide enough to cover only the main body portion of the temperature fuse, and the pair of flange portions are such that the width of one of the flange portions is equal to the width of the other portion. A guide groove is formed in one of the ribs to guide the lead wire of the temperature fuse, and a guide groove is formed in one of the ribs to guide the lead wire of the temperature fuse, and the guide groove is formed at the boundary between the winding portion of the winding wire and the collar. The distance between the lead wire of the temperature fuse and the winding wire is made larger than the distance between the lead wire and the winding wire at a position where the temperature fuse is attached to the winding wire.
作 用
上記構成とすることにより温度ヒユーズの感温
速度は向上し、巻線の温度が発熱して所定温度以
上となつた場合に温度ヒユーズは直ちに溶断さ
れ、巻線に供給される電流を遮断する。Effect The above configuration improves the temperature sensing speed of the temperature fuse, and when the temperature of the winding heats up and exceeds a predetermined temperature, the temperature fuse is immediately blown, cutting off the current supplied to the winding. do.
又、巻線の巻回部分とボビンのつば部の境界部
分における巻線と温度ヒユーズのリード線との距
離（沿面距離）は十分大きく、この間の絶縁は確
実なものとされる。 Further, the distance (creepage distance) between the winding and the lead wire of the thermal fuse at the boundary between the winding portion of the winding and the bobbin collar is sufficiently large, and the insulation therebetween is ensured.
実施例
第１図Ａ，Ｂは本考案の一実施例の正面図及び
断面図を示す。同図において第２図と同一構成部
分には同一符号を付し、その説明を省略する。Embodiment FIGS. 1A and 1B show a front view and a sectional view of an embodiment of the present invention. In this figure, the same components as in FIG. 2 are denoted by the same reference numerals, and their explanations will be omitted.
巻線７はボビン６の２つのつば部６ａ，６ｂの
間に巻回されその両端は端子２及び３に接続され
る。この巻回後の巻線７上には更に絶縁用の外装
テープ１５が巻回される。この外装テープ１５が
巻回された巻線７上には温度ヒユーズ１が同図に
示すように巻線７の巻回部分の外周上であつてつ
ば部６ａと略接する位置に添接され、この温度ヒ
ユーズ１は粘着テープ１６により巻線７上に固定
される。この粘着テープ１６の巻回は専用機械で
自動的に、しかも簡単に行なわれる。この時この
粘着テープ１６の幅W1は巻線７の巻回部分の幅
W2に比べて狭く、温度ヒユーズ１の本体部分の
みを覆う程度の幅とする。 The winding 7 is wound between the two collars 6a and 6b of the bobbin 6, and both ends thereof are connected to the terminals 2 and 3. After this winding, an insulating exterior tape 15 is further wound on the winding 7. A temperature fuse 1 is attached to the winding 7 around which the exterior tape 15 is wound, as shown in the figure, at a position on the outer periphery of the wound portion of the winding 7 and approximately in contact with the collar portion 6a. This temperature fuse 1 is fixed onto the winding 7 by adhesive tape 16. This adhesive tape 16 is wound automatically and easily using a special machine. At this time, the width W 1 of this adhesive tape 16 is the width of the wound portion of the winding wire 7.
It is narrower than W 2 and has a width that covers only the main body of the temperature fuse 1.
更に温度ヒユーズ１のリード線１ａ，１ｂは巻
線７の外周部に接しないようにつば部６ｂ方向に
延長し、端子３及び４に絡げて固定することによ
り温度ヒユーズ１本体とつば部６ｂとの間に張設
される。この時つば部６ｂ上でリード線１ａが接
する部分には溝１７ａ，１７ｂが設けられリード
線１ａ，１ｂを固定している。この温度ヒユーズ
１の取り付けも専用機械により自動的に行なう。 Further, the lead wires 1a and 1b of the temperature fuse 1 are extended in the direction of the flange 6b so as not to touch the outer periphery of the winding 7, and are tied and fixed around the terminals 3 and 4, thereby connecting the main body of the temperature fuse 1 and the flange 6b. It is stretched between. At this time, grooves 17a and 17b are provided in the portions of the collar portion 6b that are in contact with the lead wires 1a to fix the lead wires 1a and 1b. The temperature fuse 1 is also installed automatically using a special machine.
第１図に示すようにつば部６ｂの半径から巻線
７の半径を引いた長さr1は温度ヒユーズ１の半径
r2よりも十分に長いため、このリード線１ａ，１
ｂが温度ヒユーズ１から遠ざかるに従つて巻線７
との距離が大きくなる。こうして巻線７とつば部
６ｂとの境界部分における巻線７とリード線１
ａ，１ｂとの距離を3.2mm以上とし、巻線７とリ
ード線１ａ，１ｂとの間の沿面距離を大きくとる
ことができリード線１ａ，１ｂと巻線７との間の
絶縁を確実なものとすることができる。 As shown in Fig. 1, the length r1 obtained by subtracting the radius of the winding 7 from the radius of the collar 6b is the radius of the temperature fuse 1.
Since it is sufficiently longer than r 2 , this lead wire 1a, 1
As b moves away from temperature fuse 1, winding 7
The distance between them increases. In this way, the winding 7 and the lead wire 1 at the boundary between the winding 7 and the collar portion 6b
a, 1b is set to 3.2 mm or more, the creepage distance between the winding 7 and the lead wires 1a, 1b can be increased, and the insulation between the lead wires 1a, 1b and the winding 7 can be ensured. can be taken as a thing.
考案の効果
上述の如く、本考案によれば、シリコンチユー
ブ等によつて温度ヒユーズを被覆しなくとも温度
ヒユーズと巻線との間の絶縁は確実なものとさ
れ、シリコンチユーブ等を削除することにより巻
線で発生した熱が温度ヒユーズに伝わるまでの時
間を短かくして温度ヒユーズの感温速度を向上す
ることができ、またシリコンチユーブ等を被覆す
る工程が削減され、かつ、温度ヒユーズも粘着テ
ープにより容易に保持し得るため、組立作業性が
向上するとともにコスト的にも有利であるという
特長を有する。Effects of the invention As described above, according to the invention, the insulation between the temperature fuse and the winding can be ensured without covering the temperature fuse with a silicon tube or the like, and the silicon tube or the like can be omitted. This shortens the time it takes for the heat generated in the windings to transfer to the temperature fuse, improving the temperature sensing speed of the temperature fuse. It also reduces the process of covering silicone tubes, etc., and the temperature fuse can be replaced with adhesive tape. Since it can be easily held, it has the advantage of improving assembly workability and being advantageous in terms of cost.
第１図は本考案の一実施例の正面図及び側面
図、第２図は従来品の正面図及び側面図、第３図
は従来品の回路図、第４図は従来品の側面図であ
る。
１……温度ヒユーズ、２，３，４……端子、５
……シリコンチユーブ、６……ボビン、６ａ，６
ｂ……つば部、７……巻線、１５……外装テー
プ、１６……粘着テープ。
Figure 1 is a front view and side view of an embodiment of the present invention, Figure 2 is a front view and side view of a conventional product, Figure 3 is a circuit diagram of a conventional product, and Figure 4 is a side view of a conventional product. be. 1...Temperature fuse, 2, 3, 4...Terminal, 5
...Silicon tube, 6...Bobbin, 6a, 6
b...Brim part, 7...Winding, 15...Exterior tape, 16...Adhesive tape.
Claims (1)
外周部に絶縁物を介して添接された温度ヒユーズ
を有するトランスにおいて、 前記温度ヒユーズは前記一対のつば部間の幅よ
り狭く、前記温度ヒユーズの本体部分のみを覆う
程度の幅の粘着テープにより前記巻線の外周部に
保持され、 前記一対のつば部は一方のつば部の幅が他方の
つば部の幅より広く形成されると共に、該一方の
つば部に前記温度ヒユーズのリード線を案内する
案内溝が形成され、 前記巻線の巻回部分とつば部との境界位置での
前記温度ヒユーズのリード線と前記巻線との距離
を、前記温度ヒユーズが前記巻線に添接される位
置での前記リード線と前記巻線との距離よりも大
きくしてなる温度ヒユーズを有するトランス。[Claims for Utility Model Registration] In a transformer having a temperature fuse attached via an insulator to the outer periphery of a winding wound between a pair of flanges of a bobbin, the temperature fuse It is held on the outer periphery of the winding by an adhesive tape having a width narrower than the width between the flange portions and that is wide enough to cover only the main body portion of the temperature fuse, and the pair of flange portions are such that the width of one of the pair of flange portions is the same as that of the other rib portion. a guide groove for guiding the lead wire of the temperature fuse is formed in one of the flange parts, and the temperature fuse is formed at a boundary position between the winding part of the winding wire and the flange part. A transformer having a temperature fuse, wherein the distance between the lead wire and the winding wire is greater than the distance between the lead wire and the winding wire at a position where the temperature fuse is attached to the winding wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988089148U JPH0528740Y2 (en) | 1988-07-05 | 1988-07-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988089148U JPH0528740Y2 (en) | 1988-07-05 | 1988-07-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0211312U JPH0211312U (en) | 1990-01-24 |
| JPH0528740Y2 true JPH0528740Y2 (en) | 1993-07-23 |
Family
ID=31313698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988089148U Expired - Lifetime JPH0528740Y2 (en) | 1988-07-05 | 1988-07-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0528740Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS576557Y2 (en) * | 1979-07-04 | 1982-02-06 | ||
| JP5143043B2 (en) * | 2009-02-10 | 2013-02-13 | 株式会社タムラ製作所 | Fixing structure of measuring body with lead wire |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6031228U (en) * | 1983-08-09 | 1985-03-02 | 小林 勇 | Synthetic resin brush cutting line for lawn mowers |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6197818U (en) * | 1984-12-04 | 1986-06-23 |
-
1988
- 1988-07-05 JP JP1988089148U patent/JPH0528740Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6031228U (en) * | 1983-08-09 | 1985-03-02 | 小林 勇 | Synthetic resin brush cutting line for lawn mowers |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0211312U (en) | 1990-01-24 |
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