JPH0481292B2 - - Google Patents
Info
- Publication number
- JPH0481292B2 JPH0481292B2 JP10666487A JP10666487A JPH0481292B2 JP H0481292 B2 JPH0481292 B2 JP H0481292B2 JP 10666487 A JP10666487 A JP 10666487A JP 10666487 A JP10666487 A JP 10666487A JP H0481292 B2 JPH0481292 B2 JP H0481292B2
- Authority
- JP
- Japan
- Prior art keywords
- contact plate
- temperature
- temperature fuse
- fixed
- operating
- 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
- 230000002265 prevention Effects 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 239000012212 insulator Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 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
- 239000000155 melt Substances 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Landscapes
- Fuses (AREA)
- Thermally Actuated Switches (AREA)
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
ける温度過昇防止に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to the prevention of excessive temperature rises in thermal appliances having heaters, such as electric irons, or other appliances that generate 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
スタツトが用いられている。ところで前記サーモ
スタツ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
ことがあり、温度過昇によつて機器を焼損するお
それがある。こ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
つ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 regulating the temperature thereof. However, since the thermostat is mechanical, failures such as malfunction or seizure of contacts may occur, and there is a risk that the device may be burnt out due to excessive temperature rise. As a means for preventing this excessive temperature rise, a temperature fuse is used, and when the temperature rises excessively, the temperature fuse blows out, for example, to cut 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
のであり、アルミニユウムなどの金属よりなるベ
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によつて作動させられるサーモスタ
ツト４を設け、このサーモスタツト４により前記
ベース１の表面温度を設定値に保つようにしてい
る。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５を設けている。
また、第５図は電気回路を示す。 Figure 4 shows an iron as an example of an electric device.A base 1 made of metal such as aluminum has a heater 2 built in to heat it. A thermostat 4 actuated by a bimetal 3 is provided, which maintains the surface temperature of the base 1 at a set value. Further, a temperature fuse 5 is provided in the energizing 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５は管体のの内部に結晶性有
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 5 has a temperature sensing element made of a crystalline organic compound or an easily fusible metal sealed inside the tube body, 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ツト４はサーモつまみ７を
回動し作動棒６を上下することにより設定温度を
換える構成となつている。しかし作動棒６が上下
しサーモスタツト４も上下運動をすることによ
り、このサーモスタツト４の一部とベース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５の封口部５′に応力が加わつた場
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つた。Problems to be Solved by the Invention By the way, the thermostat 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 actuating 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 base 1. bending stress is applied to.
When stress is applied to the sealing portion 5' of the temperature fuse 5, 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
端に接点を有し、かつ他端をターミナル台に固着
した固定と、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ツトと、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、前記サーモスタツ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 has a contact point at one end and a fixed end fixed to the terminal block at the other end, and an operating section extending from one end. A thermostat having an operation contact plate with a contact provided at a position corresponding to the fixed contact plate of the operation unit, and a temperature fuse having one end fixed to the operation contact plate, the other end of the temperature fuse being connected to the operation contact plate. It is insulated and fixed to the thermostat and formed integrally with the thermostat.
作 用
この技術的手段による作用は次のようになる。
すなわち、温度設定をするため作動棒を上下さ
せ、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。Effect The effect of this technical means is as follows.
In other words, even if the operating rod is moved up and down to set the temperature and the operating contact plate is moved up and down, the temperature fuse is fixed integrally with the operating contact plate, so no stress is applied to the temperature fuse, and the temperature fuse This prevents defects and increases 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。Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 3.
図において、８はアイロンのベースであり、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、前記ヒータにより所要
の温度に加熱されるようになつている。 In the figure, reference numeral 8 denotes the base of the iron, which is made of die-cast aluminum and has a sheathed heater (not shown) embedded therein, and is heated to a desired temperature by the heater.
前記ベース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ツト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。前記サーモスタツト１２はバイメタル
１４と、このバイメタル１４によつて開閉される
接点１５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１
４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をセラミツ
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２０を固着している。２１は絶縁碍
子２０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
長手方向に沿つ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に取付け
られた端子板２２に固着され、前記操作接点板１
７の一部である２３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 structure in which a thermostat 12 for temperature control and a temperature fuse 13 are integrated is disposed in a cavity 11 formed between the base 8 and the cover 10. The thermostat 12 includes a bimetal 14, a contact 15 that is opened and closed by the bimetal 14, a fixed contact plate 16 made of stainless steel or the like having one contact 15, and a bimetal 1
One fixed contact plate 16 is attached to a mounting base 18 made of an insulating material such as ceramic. The operation contact plate 17 is provided with an integrally extending operation portion 19, and an insulator 20 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 20. 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 attached below the long side 19a of the operating portion 19 of the operation contact plate 17, close to the insulator 20, and along the longitudinal direction of the long side 19a. The other end of this temperature fuse 13 is fixed to a terminal plate 22 attached to the mounting base 18, and the operation contact plate 1
A circuit is constructed by insulating and fixing the 23 intermediate terminal insulator A24 and insulator B25, which are part of the 23 intermediate terminal insulator B25.
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
ンの使用温度では融資しないようになつている。
したがつ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
タツト１２の開閉によつて行なう。 Next, the operation of the overtemperature rise prevention device having the above structure will be explained. The temperature fuse 13 is designed not to operate at normal iron operating temperatures.
Therefore, under normal ironing conditions, 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１７は上下運動をするが温度ヒユーズ１
３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Ａ２４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 is moved up and down by rotating a knob (not shown).
The operating contact 17 moves up and down, but the temperature fuse 1
3 has one end fixed directly to the operation contact plate 17, and the other end also insulated and fixed to the operation contact plate 17 via intermediate terminal insulators A24 and B25,
Bending stress or the like is not applied to the sealing portion of the temperature fuse 13, and this will not cause any defects. 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り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 cracks and defects in the sealing part 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
スタツ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５図はその電気回路図である。
１２……サーモスタツト、１３……温度ヒユー
ズ、１６……固定接点板、１７……操作接点板、
１９……操作部。
Fig. 1 is a sectional view of essential parts 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 temperature fuse, Fig. 3 is a side view of the same, and Fig. 4 5 is a sectional view of a conventional overtemperature rise prevention iron, and FIG. 5 is an electric circuit diagram thereof. 12...Thermostat, 13...Temperature fuse, 16...Fixed contact plate, 17...Operation contact plate,
19...Operation unit.
Claims (1)
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ツ
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、前記サーモスタツトと一
体に形成した温度過昇防止装置。 ２ 温度ヒユーズの一端とターミナル台を可撓性
導電体によつ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。[Scope of Claims] 1. A fixed contact plate having a contact at one end and fixed to a terminal block at the other end, an operating section extending from one end, and a position of the operating section corresponding to the fixed contact plate. A thermostat having an operating contact plate provided with contacts, a temperature fuse having one end fixed to the operating contact plate, the other end of the temperature fuse being insulated and fixed to the operating contact plate, and integrated with the thermostat. Formed overtemperature rise prevention device. 2. The overtemperature rise prevention device according to claim 1, wherein one end of the temperature 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 JPS63271839A (en) | 1988-11-09 |
| JPH0481292B2 true 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) |
Families Citing this family (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 |
| 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 |
-
1987
- 1987-04-30 JP JP10666487A patent/JPS63271839A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63271839A (en) | 1988-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2097593A (en) | Safety device, having an automatic trigger mechanism, for use in electrical appliances | |
| PT789376E (en) | SWITCH WITH A TEMPERATURE DEPENDABLE INTERRUPT ELEMENT | |
| US4394646A (en) | Temperature indicator for a glass ceramic cooking surface | |
| US3031551A (en) | Electrical switch structures | |
| US4319214A (en) | Creepless, snap action thermostat | |
| JPH0481292B2 (en) | ||
| US2463891A (en) | Electric switch | |
| US3453577A (en) | Compact thermostatic snap switch with heater for protection of motor windings and the like | |
| ES2276442T3 (en) | SWITCH WITH A TEMPERATURE SENSITIVE SWITCHING MECHANISM. | |
| US4262273A (en) | Thermostatic electrical switch | |
| US4633210A (en) | Thermal overload relay with improved response | |
| US4164724A (en) | Bimetallic thermo-release, especially for protective motor switch | |
| US2524954A (en) | Thermally operated electric switch | |
| US3996547A (en) | Motor protector apparatus | |
| JPH0460288B2 (en) | ||
| US1849481A (en) | Control mechanism | |
| US2528254A (en) | Thermal cutout for flatirons or the like | |
| US3240906A (en) | Thermostatic dual switch with improved manual control | |
| US3533039A (en) | Thermostatic switch and safety circuit therefor | |
| US3369098A (en) | Switch housing including resilient compensating snap-on means | |
| US3447113A (en) | Positive-acting lower power thermally-responsive bimetallic switch | |
| US3413584A (en) | Thermoresponsive switch | |
| JP3023047U (en) | Overheat prevention device for household electric heating appliances | |
| US3209105A (en) | Detachable thermoresponsive switch control means | |
| US3369092A (en) | Thermal stack switch with a pair of adjustment means |