JPS63271839A - Overheat preventive device - Google Patents
Overheat preventive deviceInfo
- Publication number
- JPS63271839A JPS63271839A JP10666487A JP10666487A JPS63271839A JP S63271839 A JPS63271839 A JP S63271839A JP 10666487 A JP10666487 A JP 10666487A JP 10666487 A JP10666487 A JP 10666487A JP S63271839 A JPS63271839 A JP S63271839A
- Authority
- JP
- Japan
- Prior art keywords
- contact plate
- temperature fuse
- temperature
- fixed
- operation contact
- 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.)
- Granted
Links
- 230000003449 preventive effect Effects 0.000 title 1
- 239000004020 conductor Substances 0.000 claims abstract description 3
- 230000002265 prevention Effects 0.000 claims description 6
- 239000012212 insulator Substances 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 229910052742 iron Inorganic materials 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Thermally Actuated Switches (AREA)
- Fuses (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は電気アイロンのようなヒータを有する熱機器、
あるいはその他の熱を発生する機器における温度過昇防
止装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a thermal appliance with a heater, such as an electric iron;
Or it relates to a device for preventing excessive temperature rise in other equipment that generates heat.
従来の技術
一般に電気機器において、その温度を調節する手段とし
てはバイメタルを作動要素とするサーモスタットが用り
られている。ところで前記サーモスタットはメカニカル
なものであることから、動作不良、あるいは接点の焼付
などの故障が生じることがあシ、温度過昇によって機器
を焼損するおそれがある。との温度過昇を防止する手段
として、温度ヒユーズが用いられ、温度過昇時に前記温
度ヒユーズが溶断し、たとえばヒータ回路を断って安全
をはかるようにしている。2. Description of the Related Art Generally, in electrical equipment, a thermostat having a bimetal as an operating element is used as a means for adjusting the temperature thereof. However, since the thermostat is mechanical, malfunctions such as malfunction or seizure of contacts may occur, and there is a risk that the device may burn out due to excessive temperature rise. A temperature fuse is used as a means for preventing an excessive rise in temperature, and when the temperature rises excessively, the temperature fuse blows out, for example, cutting off the heater circuit to ensure safety.
第４図は電気機器としてアイロンを例にしたものであシ
、アルミニュウムなどの金属よシなるペース１には、こ
れを加熱するためのヒータ２が組み込まれており、この
ヒータ２の通電回路中にはバイメタル３によって作動さ
せられるサーモスタット４を設け、このサーモスタット
４によシ前記ベース１の表面温度を設定値に保つように
している。Figure 4 shows an example of an iron as an electrical device.A heater 2 is built into the paste 1 made of metal such as aluminum, and the current-carrying circuit of the heater 2 is A thermostat 4 operated by a bimetal 3 is provided at the base 1, and the thermostat 4 maintains the surface temperature of the base 1 at a set value.
また、温度過昇防止手段として、前記ヒータ２の通電回
路中に温度ヒユーズ６を設けている。また、第５図は電
気回路を示す。Further, a temperature fuse 6 is provided in the current supply circuit of the heater 2 as a means for preventing excessive temperature rise. Moreover, FIG. 5 shows an electric circuit.
前記温度ヒユーズ６は管体の内部に結晶性有機化合物ま
たは易融合金よりなる感温素子を封入し、温度過昇時に
前記感温素子が溶融して通電回路を開く動作をする。The temperature fuse 6 has a temperature sensing element made of a crystalline organic compound or an easily fusible metal sealed inside a tube, and when the temperature rises excessively, the temperature sensing element melts and opens an energizing circuit.
発明が解決しようとする問題点
ところでサーモスタンド４はサーモっまみ７を回動し作
動棒６を上下することにより設定温度を変える構成とな
っている。しかし作動棒６が上下しサーモスタット４も
上下運動をすることにより、このサーモスタット４の一
部とペース１に固定されたターミナル台４′の間に固定
された温度ヒユーズ５の封口部５′には曲げ応力が加わ
る。温度ヒユーズ６の封口部５′に応力が加わった場合
、この部分に割れ等が発生し温度ヒユーズが正常に動作
しない等の問題があった。Problems to be Solved by the Invention By the way, the thermo stand 4 is configured to change the set temperature by rotating the thermo knob 7 and moving the operating rod 6 up and down. However, as the operating rod 6 moves up and down and the thermostat 4 also moves up and down, the sealing part 5' of the temperature fuse 5 fixed between a part of the thermostat 4 and the terminal block 4' fixed to the pace 1 Bending stress is applied. When stress is applied to the sealing portion 5' of the temperature fuse 6, cracks occur in this portion, causing problems such as the temperature fuse not operating normally.
そこで本発明は前記問題に留意し、サーモツマミ操作時
に温度ヒユーズに外力が加わらないようにし、温度ヒユ
ーズの不良を防ぎ信頼性を高めるものである。Therefore, the present invention takes the above-mentioned problem into consideration and prevents external force from being applied to the temperature fuse when the thermo knob is operated, thereby preventing failure of the temperature fuse and improving reliability.
問題点を解決するための手段
このような問題点を解決するために本発明は一端に接点
を育し、かつ他端をターミナル台に固着した固定接点板
と、一端に操作部を延設しこの操作部の前記固定接点板
と対応する位置に接点を設けた操作接点板を有するサー
モスタットと、一端を前記操作接点板に固着した温度ヒ
ユーズを備え、この温度ヒユーズの他端を前記操作接点
板に絶縁固定して前記サーモスタットと一体に形成した
ものである。Means for Solving the Problems In order to solve these problems, the present invention includes a fixed contact plate having a contact at one end and fixed to a terminal block at the other end, and an operating section extending from one end. A thermostat having an operating contact plate with a contact provided at a position corresponding to the fixed contact plate of the operating unit, and a temperature fuse having one end fixed to the operating contact plate, the other end of the temperature fuse being connected to the operating contact plate. It is integrally formed with the thermostat by being insulated and fixed to the thermostat.
作 用 この技術的手段による作用は次のようになる。For production The effect of this technical means is as follows.
すなわち、温度設定をするため作動棒を上下させ。In other words, move the operating rod up and down to set the temperature.
操作接点板が上下しても、温度ヒユーズは前記操作接点
板と一体に固定されており、温度ヒユーズに応力が加わ
ることはなく、温度ヒユーズの不良を防ぎ、信頼性を高
めるものである。Even when the operation contact plate moves up and down, the temperature fuse is fixed integrally with the operation contact plate, so no stress is applied to the temperature fuse, which prevents failure of the temperature fuse and improves reliability.
実施例
以下本発明の一実施例を第１図〜第３図にもとづき説明
する。EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 3.
図において、８はアイロンのペースであり、アルミダイ
カストよりなり、シーズ型のヒータ（図示せず）を埋設
してあり、前記ヒータによシ所要の温度に加熱されるよ
うになっている。In the figure, reference numeral 8 denotes an iron plate, which is made of die-cast aluminum and has a sheath-type heater (not shown) embedded therein, and is heated to a required temperature by the heater.
前記ペース８とカバー１０の間に形成される空室１１に
は温度制御用のサーモスタット１２と温度ヒユーズ１３
とが一体化された構成体が配設されている。前記サーモ
スタッ）１２ｉバイメタル１４と、このバイメタル１４
によって開閉される接点１６と、一つの接点１５を持つ
ステンレス鋼等よりなる固定接点板１６および、バイメ
タル１４を結合したステンレス鋼等よりなる操作接点板
１７よりなり、一方の固定接点板１６をセラミック等の
絶縁材よりなる取付台１８に取付けている。前記操作接
点板１７には一体に延設された操作部１９が設けてあり
、その長辺部１９ａの先端には絶縁碍子２ｏを固着して
いる。２１は絶縁碍子２ｏに一端が嵌入された作動棒で
、この作動棒２１の他端には、つまみ（図示せず）等の
手動操作手段が取付けられており、このつまみの回動に
より作動棒２１を介して操作部１９を上下させるように
構成している。また温度ヒユーズ１３は管体の内部に結
晶性有機化合物または易融合金よりなる感温素子を封入
し、温度過昇時に感温素子が溶融して通電回路を開く動
作をするタイプ等であり、この温度ヒユーズ１３の一端
は前記操作接点板１７の操作部１９の長辺部１９ａの下
方で、前記絶縁碍子２０に近接し、しかも長辺部１９ａ
の長手方向に沿って取りつけられている。この温度ヒユ
ーズ１３の他端は、前記取付台１８に取シつけられた端
子板２２に固着され、前記操作接点板１７の一部である
２３に中間ターミナル碍子Ａ２４と同碍子Ｂ２５を介し
て絶縁固定し回路を構成している。A thermostat 12 for temperature control and a temperature fuse 13 are installed in the cavity 11 formed between the pace 8 and the cover 10.
A structure in which these are integrated is provided. said thermostat) 12i bimetal 14 and this bimetal 14
A fixed contact plate 16 made of stainless steel or the like having one contact 15, and an operation contact plate 17 made of stainless steel or the like combined with bimetal 14.One fixed contact plate 16 is made of ceramic. It is attached to a mounting base 18 made of an insulating material such as. The operation contact plate 17 is provided with an integrally extending operation portion 19, and an insulator 2o is fixed to the tip of the long side portion 19a. Reference numeral 21 denotes an actuating rod with one end fitted into the insulator 2o, and a manual operating means such as a knob (not shown) is attached to the other end of the actuating rod 21. Rotation of this knob causes the actuating rod to move. The operating section 19 is configured to be moved up and down via the handle 21. The temperature fuse 13 is of a type in which a temperature sensing element made of a crystalline organic compound or an easily fusible metal is sealed inside the tube, and when the temperature rises, the temperature sensing element melts and opens a current-carrying circuit. One end of the temperature fuse 13 is located below the long side 19a of the operating section 19 of the operation contact plate 17, close to the insulator 20, and located near the long side 19a.
It is attached along the longitudinal direction. The other end of this temperature fuse 13 is fixed to a terminal plate 22 attached to the mounting base 18, and is insulated to a terminal plate 23, which is a part of the operation contact plate 17, via an intermediate terminal insulator A24 and an insulator B25. It is fixed and forms a circuit.
つぎに上記構成の温度過昇防止装置の動作について説明
する。温度ヒユーズ１３は通常のアイロンの使用温度で
は溶融しないようになっている。Next, the operation of the overtemperature rise prevention device having the above structure will be explained. The temperature fuse 13 is designed not to melt at the operating temperature of a normal iron.
したがって通常のアイロンの使用状態では、温度ヒユー
ズ１３は導通状態にあり、ヒータの通電回路は閉じられ
ている。そして温度調節はサーモスタット１２の開閉に
よって行なう。Therefore, when the iron is in normal use, the temperature fuse 13 is in a conductive state and the heater's energizing circuit is closed. The temperature is adjusted by opening and closing the thermostat 12.
次に設定温度を変える場合、つまみ（図示せず）を回動
することにより作動棒２１が上下し、操作接点板１７は
上下運動をするが温度ヒユーズ１３は一端を前記操作接
点板１７へ直接固着し、他端も中間ターミナル碍子Ａ２
４と同碍子Ｂ２５を介して前記操作接点板１７へ絶縁固
定しており、温度ヒユーズ１３の封口部等へは曲げ応力
等が加わることはなく不良の原因となることはない。操
作接点板１７が上下する際のたわみは可撓性の導体であ
る端子板２２で吸収しているものである。Next, when changing the set temperature, the operating rod 21 moves up and down by rotating a knob (not shown), and the operating contact plate 17 moves up and down, but the temperature fuse 13 has one end connected directly to the operating contact plate 17. It is fixed, and the other end is also connected to the intermediate terminal insulator A2.
It is insulated and fixed to the operation contact plate 17 via the same insulator B25 as shown in FIG. Deflection when the operation contact plate 17 moves up and down is absorbed by the terminal plate 22, which is a flexible conductor.
発明の効果
前記実施例の説明よシ明らかなように本発明の温度過昇
防止装置は、設定温度を変えるため操作接点板を上下に
変位させても温度ヒユーズ部に曲げ応力等のストレスが
加わることはなく、封口部の割れ、不良等を防ぎ、信頼
性が高まるものである。Effects of the Invention As is clear from the description of the above embodiments, the temperature overrise prevention device of the present invention does not apply stress such as bending stress to the temperature fuse even when the operating contact plate is moved up and down to change the set temperature. This prevents cracking, defects, etc. of the sealing portion and increases reliability.
第１図は本発明の一実施例の温度過昇防止装置を備えた
アイロンの要部断面図、第２図はサーモスタットおよび
温度ヒユーズの平面図、第３図は同側面図、第４図は従
来の温度過昇防止装置アイロンの断面図、第６図はその
電気回路図である。
１２・・・・・・サーモスタット、１３・・・・・・温
度ヒユーズ、１６・・・・・・固定接点板、１７・・・
・・・操作接点板、１９・・・・・・操作部。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第２
図
第５図Fig. 1 is a sectional view of a main part of an iron equipped with an overtemperature rise prevention device according to an embodiment of the present invention, Fig. 2 is a plan view of a thermostat and a temperature fuse, Fig. 3 is a side view of the same, and Fig. 4 is a FIG. 6 is a cross-sectional view of a conventional overtemperature-rise prevention device iron, and FIG. 6 is an electric circuit diagram thereof. 12...Thermostat, 13...Temperature fuse, 16...Fixed contact plate, 17...
...Operation contact plate, 19...Operation section. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Figure 5
Claims (2)
着した固定接点板と、一端に操作部を延設しこの操作部
の前記固定接点板と対応する位置に接点を設けた操作接
点板を有するサーモスタットと、一端を前記操作接点板
に固着した温度ヒューズを備え、この温度ユューズの他
端を前記操作接点板に絶縁固定して前記サーモスタット
と一体に形成した温度過昇防止装置。(1) Operation using a fixed contact plate with a contact at one end and fixed to the terminal block at the other end, an operating section extending from one end, and a contact on the operating section at a position corresponding to the fixed contact plate. An overtemperature rise prevention device comprising a thermostat having a contact plate, a thermal fuse having one end fixed to the operating contact plate, and the other end of the temperature fuse being insulated and fixed to the operating contact plate, integrally formed with the thermostat.
体によって接続した特許請求の範囲第１項記載の温度過
昇防止装置。(2) The overtemperature rise prevention device according to claim 1, wherein one end of the thermal fuse and the terminal block are connected by a flexible conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10666487A JPS63271839A (en) | 1987-04-30 | 1987-04-30 | Overheat preventive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10666487A JPS63271839A (en) | 1987-04-30 | 1987-04-30 | Overheat preventive device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63271839A true JPS63271839A (en) | 1988-11-09 |
| JPH0481292B2 JPH0481292B2 (en) | 1992-12-22 |
Family
ID=14439347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10666487A Granted JPS63271839A (en) | 1987-04-30 | 1987-04-30 | Overheat preventive device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63271839A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04239910A (en) * | 1991-01-23 | 1992-08-27 | Nec Corp | Method and device for multi-input maximum value arithmetic operation |
| JPH04111138U (en) * | 1991-03-14 | 1992-09-28 | 繁孝 三谷 | thermostat |
| CN114504252A (en) * | 2021-11-10 | 2022-05-17 | 深圳市阳邦电子有限公司 | Software protection method and system applied to oven over-temperature protection |
-
1987
- 1987-04-30 JP JP10666487A patent/JPS63271839A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04239910A (en) * | 1991-01-23 | 1992-08-27 | Nec Corp | Method and device for multi-input maximum value arithmetic operation |
| JPH04111138U (en) * | 1991-03-14 | 1992-09-28 | 繁孝 三谷 | thermostat |
| CN114504252A (en) * | 2021-11-10 | 2022-05-17 | 深圳市阳邦电子有限公司 | Software protection method and system applied to oven over-temperature protection |
| CN114504252B (en) * | 2021-11-10 | 2023-08-29 | 深圳市阳邦电子有限公司 | Software protection method and system applied to oven over-temperature protection |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0481292B2 (en) | 1992-12-22 |
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