JPH0355223B2 - - Google Patents
Info
- Publication number
- JPH0355223B2 JPH0355223B2 JP1092037A JP9203789A JPH0355223B2 JP H0355223 B2 JPH0355223 B2 JP H0355223B2 JP 1092037 A JP1092037 A JP 1092037A JP 9203789 A JP9203789 A JP 9203789A JP H0355223 B2 JPH0355223 B2 JP H0355223B2
- Authority
- JP
- Japan
- Prior art keywords
- flange
- tip
- heater
- electric heater
- handle
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 64
- 229910052742 iron Inorganic materials 0.000 claims description 32
- 239000000919 ceramic Substances 0.000 claims description 23
- 238000005476 soldering Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000002470 thermal conductor Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Description
【発明の詳細な説明】
＜産業上の利用分野＞
本発明は、半田ごて、ヘアアイロン等に適用し
うる電気ごてに関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an electric iron that can be applied to a soldering iron, a hair iron, and the like.
＜従来の技術＞
本発明者は、特願昭59−163294号（特開昭61−
42481号公報）において、ヒータとこて先との間
の熱抵抗が小さく、且つヒータ又はこて先と外界
との間の熱抵抗を大きくすることにより、ヒータ
温度とこて先温度との温度差が小さく、従つて、
こて先温度を目標値近くに制御することができ、
しかも、ハンドルに伝わる熱を小さく抑えて効率
を高めた電気ごてを提案している。<Prior art> The present inventor has disclosed Japanese Patent Application No. 163294/1983
42481), the temperature difference between the heater temperature and the iron tip is reduced by making the thermal resistance between the heater and the iron tip small and increasing the thermal resistance between the heater or the iron tip and the outside world. small, therefore
The tip temperature can be controlled close to the target value,
What's more, we are proposing an electric iron that reduces the amount of heat transferred to the handle and increases efficiency.
また最近、ヒータの酸化を防ぎ長寿命化を計る
ため、ヒータをセラミツク内に埋設したセラミツ
クヒータが普及しつつある。しかし、このセラミ
ツクヒータは、撓成工程により寸法の収縮が生
じ、しかも超硬質のため切削、研磨が容易でな
く、従つて寸精度がきわめて悪い。現在、セラミ
ツクヒータを用いた半田ごてが多数市販されてい
るが、そのいずれも、こて先部材とセラミツクヒ
ータの密着性がわるく、そのため、こて先を被加
熱物に接触させたとたんに、こて先温度が低下す
るという欠点があつた。これに対し、こて先部材
を大形化してこて先部材の熱容量を大きくすれ
ば、上記欠点がある程度軽減されるものの、こて
先温度に対してヒータ温度を高く設定せねばなら
ず、セラミツクヒータとハンドルの間の断熱が不
十分なこともあつてハンドル温度が上昇し、作業
者がハンドルを素手で持つには熱すぎるという欠
点があつた。 Recently, ceramic heaters in which the heater is embedded within ceramic have become popular in order to prevent oxidation of the heater and extend its life. However, this ceramic heater undergoes dimensional shrinkage due to the bending process, and is not easy to cut or polish because it is super hard, and therefore has extremely poor dimensional accuracy. Currently, there are many soldering irons that use ceramic heaters on the market, but in all of them, the adhesion between the iron tip member and the ceramic heater is poor, and as a result, as soon as the iron tip comes into contact with the object to be heated, However, there was a drawback that the temperature of the iron tip decreased. On the other hand, if the heat capacity of the iron tip member is increased by increasing the size of the iron tip member, the above-mentioned drawbacks can be alleviated to some extent, but the heater temperature must be set higher than the iron tip temperature. The temperature of the handle rose due to insufficient insulation between the heater and the handle, making it too hot for the operator to hold the handle with bare hands.
＜発明が解決しようとする課題＞
上記した先願発明は、ヒータ温度とこて先温度
の温度差が小さく、しかも、ハンドルに伝わる熱
が小さいという長所があるが、こて先部材をテー
パにより締め付けられる摩擦力のみにより保持し
ているため、温度変化に応じて締結力が変化する
という問題があり、また、電気ヒータをそのリー
ド線により保持しているので保持力が十分でな
く、締結用ドライバを締め付ける際に電気ヒータ
に捩れが生じ易いという問題がある。<Problem to be solved by the invention> The above-mentioned prior invention has the advantage that the temperature difference between the heater temperature and the iron tip temperature is small, and the heat transmitted to the handle is small, but the iron tip member is tightened by a taper. Since the electric heater is held only by the frictional force generated by the electric heater, there is a problem that the fastening force changes depending on the temperature change.Also, since the electric heater is held by its lead wire, the holding force is insufficient, and the fastening driver There is a problem in that the electric heater tends to be twisted when tightened.
本発明は、これら諸問題を解決すると同時に、
現在市販されている商品の上記した諸欠点も一挙
に解する改良された電気ごての実現を解決課題と
する。 The present invention solves these problems and at the same time
The object of the present invention is to realize an improved electric iron that solves all the above-mentioned drawbacks of products currently on the market.
そこで、本発明の第一の目的は、セラミツクヒ
ータのように寸法精度と表面あらさの悪い電気ヒ
ータであつても、第３図の熱等価回路図に示す抵
抗Rpを低く抑えることにより、こて先の熱容量
を大きくしなくても、こて先温度が常に目標値近
くに制御される温度制御のすぐれた電気ごてを提
供することであり、その第二の目的は、セラミツ
クヒータのような圧縮荷重に強くても捩れや衝撃
に弱い電気ヒータを用いても、これを安定かつ堅
牢に保持する電気ごてを提供することであり、そ
の第三の目的は、使用時または非使用時に、こて
先を下にハンドルを上にした姿勢で長時間（例え
ば10時間）放置していても、ハンドルが過熱され
ず使い勝手の良好な電気ごてを提供することであ
る。 Therefore, the first object of the present invention is to suppress the resistance R p shown in the thermal equivalent circuit diagram of FIG. The aim is to provide an electric iron with excellent temperature control that allows the tip temperature to always be controlled close to the target value without increasing the heat capacity of the tip. The purpose is to provide an electric iron that can stably and robustly hold an electric heater that is strong against heavy compressive loads but weak against twisting and impact. To provide an electric iron which is easy to use and whose handle does not overheat even if it is left for a long time (for example, 10 hours) with the tip down and the handle up.
＜課題を解決するための手段＞
本発明の電気ヒータは、前半部に発熱体が内蔵
された棒状の電気ヒータと、その電気ヒータの上
記発熱体、内蔵部分に嵌合する筒部と上記電気ヒ
ータ先端面を軸方向に押圧する底をもつ孔が穿た
れ、その先端にこて先が設けられ、かつ、上記筒
部の外周の上記底よりも根元側にテーパが形成さ
れているこて先部材と、そのこて先部材のテーパ
に当接する抑え部と上記筒部よりも根元側へ伸び
たフランジ状係止部をもつ固定パイプと、上記こ
て先部材の上記抑え部に当る部分およびそれより
根元側に設けられた軸方向の割溝と、上記電気ヒ
ータの根元部と一体にかつ電気ヒータの棒状軸と
垂直に設けられてその根元部周辺の空間を前後方
向に蔽断する第１のフランジと、その第１のフラ
ンジを支持するハンドルと、上記第１のフランジ
を上記ハンドルと共同して挟持する第２のフラン
ジをもつフランジ部材と、そのフランジ部材の先
端部と上記フランジ状係止を締め付ける締結部材
を有することを特徴としている。<Means for Solving the Problems> The electric heater of the present invention includes a rod-shaped electric heater with a built-in heating element in its front half, the heating element of the electric heater, a cylindrical part that fits into the built-in part, and the electric heater. A soldering iron, which has a hole with a bottom that presses the tip surface of the heater in the axial direction, a soldering tip is provided at the tip of the hole, and a taper is formed on the outer periphery of the cylindrical portion on the base side of the bottom. A tip member, a holding part that comes into contact with the taper of the tip member, a fixed pipe having a flange-like locking part that extends toward the base side of the cylindrical part, and a part of the tip member that comes into contact with the holding part. and an axial dividing groove provided on the base side thereof, which is provided integrally with the base of the electric heater and perpendicular to the rod-shaped shaft of the electric heater, and cuts off the space around the base in the front-rear direction. A flange member having a first flange, a handle that supports the first flange, a second flange that jointly holds the first flange with the handle, and a distal end of the flange member and a handle that supports the first flange. It is characterized by having a fastening member that tightens the shape lock.
＜作用＞
第３図に、本発明の熱現象を電気回路に模して
表現した熱等価回路図を示す。熱源を電流源に、
伝熱路を電気抵抗に、熱容量を静電容量に代えて
表現している。図に付されている記号の意味を下
記に列記する。<Function> FIG. 3 shows a thermal equivalent circuit diagram representing the thermal phenomenon of the present invention as an electric circuit. Turn the heat source into a current source,
The heat transfer path is expressed as electrical resistance, and the heat capacity is expressed as capacitance. The meanings of the symbols attached to the figures are listed below.
TH：ヒータの温度
Tt：こて先の温度
Ta：環境温度
TG：ハンドルの温度
Ph：ヒータの電力損失
Rp：ヒータとこて先の間の熱抵抗
Ra：こて先と外気の間の熱抵抗
RL：被加熱物と外気の間の熱抵抗
Rpg：ヒータとハンドルの間の熱抵抗
Rag：ハンドルと外気の間の熱抵抗
Ca：こて先の熱容量
CL：被加熱物の熱容量
SW：こて先と被加熱物の接触、非接触を表す
スイツチ
一般に、電気ヒータによりこて先を加熱する加
熱器において、ヒータの通電を制御する場合、こ
て先の温度Ttと目標値との偏差ができるだけ小
さくなるように制御されなければならない。 T H : Heater temperature T t : Tip temperature T a : Environmental temperature T G : Handle temperature P h : Heater power loss R p : Thermal resistance between heater and tip R a : Tip R L : Thermal resistance between the object to be heated and the outside air R pg : Thermal resistance between the heater and the handle R ag : Thermal resistance between the handle and the outside air C a : Thermal capacity of the tip C L : Heat capacity of the heated object S W : Switch indicating whether the tip and the heated object are in contact or not The temperature must be controlled so that the deviation between the target temperature and the target value is as small as possible.
ヒータによつて発生する熱がこて先に伝導され
る経路を上記回路図により考えると、熱的定常状
態において、
TH＝Ph・Rp＋Ph・Ra＋Ta ……(1)
ただし、Rpg≫Rpであるからこて先からハンド
ルを通して外気へ逃げる熱は無視している。 Considering the path through which the heat generated by the heater is conducted to the iron tip using the circuit diagram above, in a thermal steady state, T H =P h・R p +P h・R a +T a ……(1) However, since R pg ≫ R p, the heat escaping from the soldering tip to the outside air through the handle is ignored.
Tt＝Ph・Ra＋Ta ……(2)
であるから(1)(2)式両式より
Tt−Ta／TH−Ta＝Ph・Ra／Ph・Rp＋Ph・Ra
＝Ra／Rp＋Ra ……(3)
この式より明らかなように、こて先温度Ttは、
ヒータ温度THよりも低い。更に、こて先が被加
熱物に触れるとスイツチSWがオンになつて、過
渡的に熱容量CLに熱がうばわれるが、その後定
常状態になると熱抵抗Raの回路に熱抵抗RLの回
路が並列接触されるため、外気への放熱が増大し
てこて先温度Ttは更に低下する。 T t =P h・R a +T a ...(2) Therefore, from both equations (1) and (2), T t −T a /T H −T a =P h・R a /P h・R p +P h・R a =R a /R p +R a ...(3) As is clear from this equation, the iron tip temperature T t is
Lower than heater temperature T H. Furthermore, when the iron tip touches the object to be heated, the switch SW is turned on and heat is transferred to the heat capacity C L transiently, but after that, when a steady state is reached, the circuit with the heat resistance R a is transferred to the circuit with the heat resistance R L. Since the circuits are connected in parallel, heat radiation to the outside air increases and the tip temperature T t further decreases.
スイツチSWのオン、オフいずれの場合にも、
Ttの低下変動分を小さく抑えるためには熱抵抗
Rpを小さく抑えることが肝要である。このこと
は、見方を変えれば、熱抵抗Rpが小さい場合は、
こて先温度Ttにヒータ温度THを近づけることが
可能となり、ヒータ温度THを低くすることは、
熱抵抗Rpg、Ragを通して外気への放熱が少なくな
り、ハンドル温度TGの低下にもなる。熱抵抗Rp
を低減するためには、こて先とヒータを強く押圧
し合うことが必要である。 Regardless of whether the switch SW is on or off,
Thermal resistance is
It is important to keep R p small. Looking at this from another perspective, if the thermal resistance R p is small, then
It is possible to bring the heater temperature T H closer to the tip temperature T t , and lowering the heater temperature T H
The amount of heat radiated to the outside air through the thermal resistances R pg and R ag is reduced, which also lowers the handle temperature T G . Thermal resistance R p
In order to reduce this, it is necessary to strongly press the tip and heater together.
さて、本発明の構成において、締結手段を締め
付けることにより、電気ヒータの根元部と一体に
設けられた第１のフランジと固定パイプのフラン
ジ状係止部が強く引張られ、それにより固定パイ
プの抑え部がこて先部材のテーパを軸方向に対し
斜め方向に押圧し、その軸心に向く分力がこて先
部材の根元部を締め付けて割溝の溝幅を縮小さ
せ、軸方向の分力が電気ヒータとこて先部材を強
く押圧する。また、電気ヒータからハンドル側へ
伝わる熱は、その殆んどが第１のフランジを通し
て外気へ放出され、第１のフランジとハンドル間
の熱抵抗が非常に大きく、しかもハンドルへ向か
う軸方向の空気通路が第１のフランジにより遮断
されているので、ハンドルの温度上昇が非常に低
く抑えられる。 Now, in the configuration of the present invention, by tightening the fastening means, the first flange provided integrally with the base of the electric heater and the flange-like locking part of the fixed pipe are strongly pulled, thereby restraining the fixed pipe. presses the taper of the tip member in a diagonal direction with respect to the axial direction, and the force directed toward the axis tightens the root of the tip member, reducing the groove width of the split groove, and The force strongly presses the electric heater and tip member. In addition, most of the heat transmitted from the electric heater to the handle side is released to the outside air through the first flange, and the thermal resistance between the first flange and the handle is extremely large. Since the passage is blocked by the first flange, the temperature rise in the handle is kept very low.
＜実施例＞
第１図に本発明実施例の分解斜視図を示し、第
２図にその組立て状態の縦断面図を示す。<Embodiment> FIG. 1 shows an exploded perspective view of an embodiment of the present invention, and FIG. 2 shows a longitudinal sectional view of the assembled state.
丸棒状のセラミツクヒータ１はその最先端部に
温度センサ２が埋設され、つづいて、発熱体３が
埋設され、各リード線が後端から導出されて端子
板４に接続されている。このセラミツクヒータの
根元部に第１のフランジ５がろう付けにより一体
接合されている。このフランジ５は、熱伝導が良
好で、曲げ応力が比較的小さい材料、例えばニツ
ケル又はその合金により構成されている。フラン
ジ５の外周には例えば３個の貫通孔６…６が穿た
れているほかに開口部がなく、セラミツクヒータ
外周辺の空間を前後方向に蔽断している。 A round bar-shaped ceramic heater 1 has a temperature sensor 2 embedded in its tip, followed by a heating element 3, and each lead wire is led out from the rear end and connected to a terminal plate 4. A first flange 5 is integrally joined to the base of this ceramic heater by brazing. The flange 5 is made of a material with good thermal conductivity and relatively low bending stress, such as nickel or an alloy thereof. The outer periphery of the flange 5 has no openings other than, for example, three through holes 6...6, which cut off the space around the outside of the ceramic heater in the front-rear direction.
ハンドル７は、プラスチツク、木等の熱不良導
体より成り、その先端にフランジ部８が形成さ
れ、そのフランジ部８の端面に上記した貫通孔と
対応する３個の座部９…９が一体形成され、その
座部にメネジが刻設されている。ハンドル７の中
心部は中空であつて、端子板４等が収納される。 The handle 7 is made of a thermally poor conductor such as plastic or wood, and has a flange portion 8 formed at its tip, and three seat portions 9...9 corresponding to the above-mentioned through holes are integrally formed on the end surface of the flange portion 8. A female thread is engraved on the seat. The center of the handle 7 is hollow and accommodates the terminal plate 4 and the like.
こて先部材１０は、セラミツクヒータ１の少な
くとも電気ヒータ３の内蔵部分に嵌合する筒部と
セラミツクヒータ１の先端面１ａに当接する底を
もつ孔１１が穿たれ、その先端にこて先１２が設
けられ、孔１１が形成された部分に、軸方向の割
溝１３が刻設され、筒部の外周の上記孔１１の底
より根元側、換言すれば、割溝１３に当る位置
に、先端が細くなるテーパ１４が形成されてい
る。 The iron tip member 10 has a hole 11 having a cylindrical portion that fits into at least the built-in part of the electric heater 3 of the ceramic heater 1 and a bottom that abuts the tip surface 1a of the ceramic heater 1. 12 is provided, and a groove 13 in the axial direction is carved in the portion where the hole 11 is formed, and a groove 13 in the axial direction is carved at a position closer to the base than the bottom of the hole 11 on the outer periphery of the cylindrical portion, in other words, at a position corresponding to the groove 13. , a taper 14 is formed with a tapered tip.
固定パイプ１５は、上記したこて先部材１０の
筒部の外周に嵌合してこれを包み、こて先部材１
０のテーパ１４に当接する抑え部１６と、こて先
部材１０の後端１０ａよりも根元側へ伸びたフラ
ンジ状係止部１７が形成されている。 The fixed pipe 15 fits onto the outer periphery of the cylindrical portion of the soldering tip member 10 and wraps it.
A restraining part 16 that comes into contact with the taper 14 of 0, and a flange-like locking part 17 that extends toward the base of the tip member 10 from the rear end 10a are formed.
フランジ部材１８は、ハンドル７の座部９…９
と共同して第１のフランジ５を挟着するための第
２のフランジ１９と、それと一体のおねじ２０を
有し、セラミツクヒータ１の間に十分な間隙をも
つ貫通孔２１が穿たれている。このおねじ２０の
山径は上記したフランジ状係止部１７の外径とほ
ぼ等しい。締結部材２２は、フランジ状係止部１
７とおねじ２０を連結して両者を引張るための部
材である。 The flange member 18 is attached to the seat portions 9...9 of the handle 7.
It has a second flange 19 for clamping the first flange 5 together with the second flange 19, and a male screw 20 integral with the second flange 19, and a through hole 21 with a sufficient gap is bored between the ceramic heaters 1. There is. The thread diameter of this male thread 20 is approximately equal to the outer diameter of the flange-like locking portion 17 described above. The fastening member 22 has a flange-like locking portion 1
This is a member for connecting 7 and the male screw 20 and pulling them together.
これを組み立てるときは、セラミツクヒータ１
の端子板４等を接続したのち、その第１のフラン
ジ部５をハンドル７の座部９…９に当接し、その
上からフランジ部材１８を重ね合わせて、ビス２
３…２３によりハンドルに固着する。次にセラミ
ツクヒータ１の先端部にこて先部材１０を挿入
し、つづいてこのこて先部材１０の上に固定パイ
プ１５を挿入し、締結部材２２を締め付けること
により組み立て作業が完了する。 When assembling this, use ceramic heater 1.
After connecting the terminal plates 4, etc., the first flange portion 5 is brought into contact with the seat portions 9...9 of the handle 7, the flange member 18 is placed on top of the seat portion 9, and the screw 2 is inserted.
3...It is fixed to the handle by 23. Next, the iron tip member 10 is inserted into the tip of the ceramic heater 1, and then the fixing pipe 15 is inserted onto the iron tip member 10, and the fastening member 22 is tightened, thereby completing the assembly work.
この状態において、こて先部材１０のテーパ１
４が固定パイプ１５の抑え部１６により強く押圧
され、その押圧面に作用する力の軸方向分力が、
こて先部材１０とセラミツクヒータ１を軸方向に
強く押圧し、その半径方向分力が軸心へ作用し
て、セラミツクヒータ１の外周をこて先部材１０
が締め付けて強く密着させる。また、セラミツク
ヒータ１の真円度または軸方向真直度、或いは第
１フランジ５の固着角度が理想値よりも偏つてい
ても、第１のフランジ５が変形性を有しているの
で、これらの製作上の誤差を吸収して、セラミツ
クヒータ１とこて先部材１０との当接が最も密に
なるよう第１のフランジ５が変形するので、セラ
ミツクヒータ１にかかる曲げ応力および捩れ応力
が緩和される。さらに、ハンドル７の先端面に座
部９…９が設けられ、その結果、セラミツクヒー
タ１に固着された第１のフランジ５とハンドル７
の間に外気による熱不良導体が形成される。 In this state, the taper 1 of the tip member 10
4 is strongly pressed by the holding part 16 of the fixed pipe 15, and the axial component of the force acting on the pressing surface is
The tip member 10 and the ceramic heater 1 are strongly pressed in the axial direction, and the radial component force acts on the axial center, and the outer periphery of the ceramic heater 1 is pressed against the tip member 10.
is tightened to make a strong seal. Furthermore, even if the roundness or axial straightness of the ceramic heater 1 or the fixing angle of the first flange 5 are deviated from ideal values, since the first flange 5 has deformability, The first flange 5 is deformed so that the ceramic heater 1 and the tip member 10 are in the closest contact by absorbing manufacturing errors, so the bending stress and torsional stress applied to the ceramic heater 1 are alleviated. be done. Further, seats 9...9 are provided on the distal end surface of the handle 7, and as a result, the first flange 5 fixed to the ceramic heater 1 and the handle 7
During this period, a poor thermal conductor is formed due to the outside air.
本発明の電気ヒータは、上記したセラミツクヒ
ータに限らず、例えば、ステンレスパイプ内に、
電気抵抗体および温度センサを収納し、その空間
を、例えばマグネシア（MgO）又はアルミナの
粉末を水ガラスで溶いた耐熱性絶縁材料で充填し
たものによつても実施することができる。 The electric heater of the present invention is not limited to the above-mentioned ceramic heater.
It can also be implemented by accommodating an electric resistor and a temperature sensor, and filling the space with a heat-resistant insulating material made of, for example, magnesia (MgO) or alumina powder dissolved in water glass.
＜発明の効果＞
本発明によれば、棒状電気ヒータの根元部と先
端の両端で軸方向に強く挟持することにより、電
気ヒータとこて先部材を強く当接させているの
で、ヒータとこて先の間の熱抵抗Rpが非常に小
さくなり、こて先温度が常に目標値近くに制御さ
れる。また、棒状の電気ヒータには圧縮力が作用
するだけで、着脱時または使用時に捩れや曲げが
作用しないので、セラミツクのような脆性の大き
い材料を用いる場合でも電気ヒータを破損するこ
とがない。また、構成が簡単で部品点数も少ない
ので、組立て作業が容易であり、安価に製作する
ことができる。<Effects of the Invention> According to the present invention, the electric heater and the soldering tip member are brought into strong contact with each other by strongly clamping the rod-shaped electric heater in the axial direction at both ends of the base and tip, so that the heater and the soldering tip are tightly held together. The thermal resistance R p between the two ends becomes extremely small, and the tip temperature is always controlled close to the target value. In addition, only compressive force is applied to the rod-shaped electric heater, and no twisting or bending is applied during attachment/detachment or use, so even when a highly brittle material such as ceramic is used, the electric heater will not be damaged. Furthermore, since the structure is simple and the number of parts is small, assembly work is easy and manufacturing can be done at low cost.
さらに本発明によれば、棒状電気ヒータの根元
部と一体に、かつ電気ヒータの棒状軸と垂直に設
けられ、その根元部周辺の空間を前後方向に蔽断
する第１のフランジが、電気ヒータの発熱体周辺
とハンドル７中心の中空部を完全に蔽断している
ので、電気ごてを立てた姿勢で置いておいても、
電気ヒータの熱がハンドルへ余り伝達されず、ハ
ンドルの過渡な温度上昇が抑止される。 Further, according to the present invention, the first flange, which is provided integrally with the root portion of the rod-shaped electric heater and perpendicular to the rod-shaped shaft of the electric heater, and which cuts off the space around the root portion in the front-rear direction, The area around the heating element and the hollow part in the center of the handle 7 are completely sealed off, so even if the electric iron is placed in an upright position,
The heat of the electric heater is not sufficiently transmitted to the handle, and a transient temperature rise of the handle is suppressed.
第１図は本発明実施例の分解斜視図、第２図は
その組立て状態の縦断面図、第３図は、本発明の
作用を説明する熱等価回路図である。
１……セラミツクヒータ（電気ヒータ）、５…
…第１のフランジ、７……ハンドル、１０……こ
て先部材、１１……孔、１２……こて先、１３…
…割溝、１４……テーパ、１５……固定パイプ、
１６……抑え部、１７……フランジ状係止部、１
８……フランジ部材、１９……第２のフランジ、
２０……締結部材。
FIG. 1 is an exploded perspective view of an embodiment of the present invention, FIG. 2 is a vertical sectional view of the assembled state, and FIG. 3 is a thermal equivalent circuit diagram illustrating the operation of the present invention. 1... Ceramic heater (electric heater), 5...
...First flange, 7... Handle, 10... Soldering tip member, 11... Hole, 12... Soldering tip, 13...
...Split groove, 14...Taper, 15...Fixed pipe,
16... Retaining part, 17... Flange-shaped locking part, 1
8...Flange member, 19...Second flange,
20... Fastening member.
Claims (1)
タと、その電気ヒータの上記発熱体内蔵部分に嵌
合する筒部と上記電気ヒータ先端面を軸方向に押
圧する底をもつ孔が穿たれ、その先端にこて先が
設けられ、かつ、上記筒部の外周の上記底よりも
根元側にテーパが形成されているこて先部材と、
そのこて先部材のテーパに当接する抑え部と上記
筒部よりも根元側へ伸びたフランジ状係止部をも
つ固定パイプと、上記こて先部材の上記抑え部に
当る部分およびそれより根元側に設けられた軸方
向の割溝と、上記電気ヒータの根元部と一体にか
つ電気ヒータの棒状軸と垂直に設けられてその根
元部周辺の空間を前後方向に蔽断する第１のフラ
ンジと、その第１のフランジを支持するハンドル
と、上記第１のフランジを上記ハンドルと共同し
て挟持する第２のフランジをもつフランジ部材
と、そのフランジ部材の先端部と上記フランジ状
係止部を締め付ける締結部材を有する電気ごて。 ２ 上記棒状の電気ヒータがセラミツクヒータで
ある第１項記載の電気ごて。[Scope of Claims] 1. A rod-shaped electric heater with a built-in heating element in its front half, a cylindrical portion that fits into the heating element built-in portion of the electric heater, and a bottom that presses the tip end surface of the electric heater in the axial direction. a soldering iron tip member having a hole bored therein, a soldering iron tip provided at the tip thereof, and a soldering iron tip member having a taper formed on the outer periphery of the cylindrical portion on a base side relative to the bottom;
A fixed pipe having a holding part that comes into contact with the taper of the tip member and a flange-like locking part extending toward the base side of the cylindrical part, and a part of the tip member that comes into contact with the holding part and a part of the tip member that is closer to the base than the holding part. an axial groove provided on the side, and a first flange that is provided integrally with the root portion of the electric heater and perpendicular to the rod-shaped shaft of the electric heater, and cuts off the space around the root portion in the front-rear direction. a flange member having a handle that supports the first flange, a second flange that jointly holds the first flange with the handle, a tip end of the flange member and the flange-like locking portion. An electric iron having a fastening member for tightening. 2. The electric iron according to item 1, wherein the rod-shaped electric heater is a ceramic heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9203789A JPH02268967A (en) | 1989-04-11 | 1989-04-11 | Electric soldering iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9203789A JPH02268967A (en) | 1989-04-11 | 1989-04-11 | Electric soldering iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02268967A JPH02268967A (en) | 1990-11-02 |
| JPH0355223B2 true JPH0355223B2 (en) | 1991-08-22 |
Family
ID=14043333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9203789A Granted JPH02268967A (en) | 1989-04-11 | 1989-04-11 | Electric soldering iron |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02268967A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005070605A1 (en) * | 2004-01-27 | 2005-08-04 | Hakko Corporation | Solder heating tool and soldering iron bit member used therefor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5159055A (en) * | 1974-11-20 | 1976-05-22 | Tootsuu Kogyo Kk | HANDAGOTE |
| JPS5814043U (en) * | 1981-07-20 | 1983-01-28 | 山端 三千男 | Power switching device in dump trailer |
| JPS6142481A (en) * | 1984-08-01 | 1986-02-28 | Hideo Sugimori | Electric trowel |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS586617Y2 (en) * | 1980-12-24 | 1983-02-04 | 太洋電機産業株式会社 | soldering iron |
| JPS58111166U (en) * | 1982-01-19 | 1983-07-29 | 白光金属工業株式会社 | electric soldering iron |
| JPH028606Y2 (en) * | 1984-12-05 | 1990-03-01 |
-
1989
- 1989-04-11 JP JP9203789A patent/JPH02268967A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5159055A (en) * | 1974-11-20 | 1976-05-22 | Tootsuu Kogyo Kk | HANDAGOTE |
| JPS5814043U (en) * | 1981-07-20 | 1983-01-28 | 山端 三千男 | Power switching device in dump trailer |
| JPS6142481A (en) * | 1984-08-01 | 1986-02-28 | Hideo Sugimori | Electric trowel |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02268967A (en) | 1990-11-02 |
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