JP2822254B2 - Electric heater - Google Patents
Electric heaterInfo
- Publication number
- JP2822254B2 JP2822254B2 JP2028474A JP2847490A JP2822254B2 JP 2822254 B2 JP2822254 B2 JP 2822254B2 JP 2028474 A JP2028474 A JP 2028474A JP 2847490 A JP2847490 A JP 2847490A JP 2822254 B2 JP2822254 B2 JP 2822254B2
- Authority
- JP
- Japan
- Prior art keywords
- heater
- main body
- body case
- temperature
- prevention device
- 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 - Fee Related
Links
Landscapes
- Control Of Resistance Heating (AREA)
- Direct Air Heating By Heater Or Combustion Gas (AREA)
- Electric Stoves And Ranges (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、安全性の高い電気暖房器に関するものであ
る。Description: TECHNICAL FIELD The present invention relates to a highly safe electric heater.
［従来の技術］ 第５図は従来の電気暖房器の一例を示す縦断面図であ
る。図において、（１）は本体ケース、（２）は本体ケ
ース（１）内に配設されたＵ字状のヒータ、（３）はヒ
ータ（２）の直管部に多数設けられた放熱フィンであ
る。（４）は本体ケース（１）に取り付けられた案内板
で、ヒータ（２）の上部を傾斜状に覆うようになってい
る。（５）はヒータ（２）の直管部の中央部付近におい
て、案内板（４）の上面に取り付けられた温度過昇防止
器である。（６）は本体ケース（１）の前面を覆うパネ
ル、（７），（８）はそれぞれパネル（６）の下部及び
上部に設けられた吸気口及び排気口である。[Prior Art] FIG. 5 is a longitudinal sectional view showing an example of a conventional electric heater. In the figure, (1) is a main body case, (2) is a U-shaped heater provided in the main body case (1), and (3) is a large number of radiation fins provided in a straight pipe portion of the heater (2). It is. (4) is a guide plate attached to the main body case (1), which covers an upper portion of the heater (2) in an inclined manner. (5) is an excessive temperature rise prevention device attached to the upper surface of the guide plate (4) near the center of the straight pipe portion of the heater (2). (6) is a panel covering the front surface of the main body case (1), and (7) and (8) are an intake port and an exhaust port provided at a lower portion and an upper portion of the panel (6), respectively.
次に、作用について説明する。スイッチ（図示せず）
を閉成してヒータ（２）に通電すると、ヒータ（２）が
発熱する。これにより本体ケース（１）内の空気は暖め
られて上昇し、矢印（ａ）で示すように案内板（４）に
案内されてパネル（６）の排気口（８）から外部に放出
され、室内を暖める。一方、温風放出に伴い吸気口
（７）からは室内下部の冷たい空気が矢印（ｂ）で示す
ように本体ケース（１）内に吸入され、ヒータ（２）に
より暖められて本体ケース（１）内を上昇する。これに
より室内には対流が起り、室内空気は効率良く暖められ
る。Next, the operation will be described. Switch (not shown)
Is closed and power is supplied to the heater (2), the heater (2) generates heat. As a result, the air in the main body case (1) is warmed and rises, and is guided to the guide plate (4) as shown by the arrow (a) and is discharged to the outside through the exhaust port (8) of the panel (6). Warm the room. On the other hand, the cold air in the lower part of the room is sucked into the main body case (1) as shown by the arrow (b) from the intake port (7) with the discharge of the hot air, and is heated by the heater (2) to be heated by the main body case (1). ) Rise inside. As a result, convection occurs in the room, and the room air is efficiently warmed.
このとき、たとえば排気口（８）が毛布等で塞がれる
ような異常な事態が発生すると、ヒータ（２）により暖
められた空気は逃げ場を失い、本体ケース（１）内にこ
もることになる。このような空気は、更にヒータ（２）
により暖められ、ヒータ（２）自身の表面温度も急激に
上昇して本体ケース（１）が高温になり、火災や火傷を
発生するおそれが生じる。温度過昇防止器（５）はこの
状態を感知し、こもった熱い空気に反応して作動し、ヒ
ータ（２）の通電を停止する。At this time, for example, if an abnormal situation occurs in which the exhaust port (8) is closed by a blanket or the like, the air warmed by the heater (2) loses its escape space and stays inside the main body case (1). . Such air is further supplied to the heater (2).
As a result, the surface temperature of the heater (2) itself rises rapidly, and the temperature of the main body case (1) becomes high, which may cause a fire or a burn. The over-temperature prevention device (5) senses this condition, operates in response to the trapped hot air, and stops energizing the heater (2).
［発明が解決しようとする課題］ 上記のように構成した従来の電気暖房器においては、
排気口（８）を毛布等で塞がれたような異常時におい
て、温度過昇防止器（５）が案内板（４）の上部位置に
取り付けられているため、ヒータ（２）の熱が温度過昇
防止器（５）に伝わるのに時間がかかり、本体ケース
（１）が高温になってしまうという問題があった。[Problem to be Solved by the Invention] In the conventional electric heater configured as described above,
In the event of an abnormality such as when the exhaust port (8) is closed with a blanket or the like, the overheat prevention device (5) is mounted at the upper position of the guide plate (4), so that the heat of the heater (2) is reduced. There is a problem that it takes time to transmit to the excessive temperature rise prevention device (5), and the temperature of the main body case (1) becomes high.
本発明は上記のような課題を解決するためになされた
もので、万一排出口を閉塞するような異常事態が発生し
た場合においても、ヒータの表面温度の上昇にすばやく
反応して通電を停止して本体ケースが高温になるのを防
ぎ、火傷や火災等の事故を未然に防止することのできる
安全な電気暖房器を得ることを目的とする。The present invention has been made to solve the above-described problem, and even in the event of an abnormal situation such as closing the discharge port, the power supply is stopped immediately in response to a rise in the surface temperature of the heater. It is an object of the present invention to obtain a safe electric heater that can prevent the body case from becoming hot and prevent accidents such as burns and fires.
［課題を解決するための手段］ 本発明に係る電気暖房機は、ヒータの屈曲部を本体ケ
ースに取付ける取付板に熱伝導板を連結し、この熱伝導
板に温度過昇防止器をその感温部がヒータの表面温度が
高い屈曲部の近傍に位置するように熱伝導板に取り付け
たものである。[Means for Solving the Problems] In an electric heater according to the present invention, a heat conductive plate is connected to a mounting plate for mounting a bent portion of a heater to a main body case, and an overheat prevention device is attached to the heat conductive plate. The heater is attached to the heat conducting plate such that the warm part is located near the bent part where the surface temperature of the heater is high.
［作 用］ 排気口を毛布等で塞がれるような異常事態が発生した
ときは、温度過昇防止器はヒータの表面温度の上昇にす
ばやく反応し、ヒータの通電を停止する。[Operation] In the event of an abnormal situation in which the exhaust port is closed by a blanket or the like, the over-temperature protection device quickly reacts to the rise in the surface temperature of the heater and stops energizing the heater.
［発明の実施例］ 第１図は一部を断面で示した本発明実施例の正面図、
第２図は第１図のＡ−Ａ断面図である。図において、
（１）は本体ケース、（２）は本体ケース（１）内に設
けられたＵ字状のヒータ、（３）はヒータ（２）の屈曲
部（2a）を除く直管部（2b）に設けられた放熱フィンで
ある。なお、ヒータ（２）には、同じピッチで発熱線
（図示せず）が巻かれており、このためヒータ（２）の
表面温度はＵ字部分（2a）の方が放熱フィン（３）を設
けた直管部分（2b）よりも高く、また、異常時には最も
速く高温に到達する。（４）は本体ケース（１）に取付
けられた案内板で、ヒータ（２）の上部を傾斜状に覆う
ようになっている。（６）は本体ケース（１）の前面を
覆うパネル、（７），（８）はそれぞれパネル（６）の
下部及び上部に設けられた多数の吸気口及び排気口であ
る。（９）はヒータ（２）の屈曲部（2a）を本体ケース
（１）等に固定するヒータ取付板、（10）はヒータ取付
板（９）に共締めされた熱伝導の良好な部材からなる熱
伝導板、（11）は熱伝導板（10）に取り付けられた温度
過昇防止器で、ヒータ（２）の熱はヒータ取付板（９）
から熱伝導板（10）を経て温度過昇防止器（11）に伝導
される。FIG. 1 is a front view of an embodiment of the present invention, a part of which is shown in cross section.
FIG. 2 is a sectional view taken along line AA of FIG. In the figure,
(1) is a main body case, (2) is a U-shaped heater provided in the main body case (1), and (3) is a straight pipe portion (2b) excluding a bent portion (2a) of the heater (2). It is a radiation fin provided. Heating wires (not shown) are wound around the heater (2) at the same pitch. Therefore, the surface temperature of the heater (2) is higher in the U-shaped portion (2a) than in the radiating fins (3). It is higher than the straight pipe section (2b) provided, and at the time of abnormality, it reaches the highest temperature quickly. (4) is a guide plate attached to the main body case (1), which covers the upper part of the heater (2) in an inclined manner. (6) is a panel that covers the front surface of the main body case (1), and (7) and (8) are a number of intake ports and exhaust ports provided at a lower portion and an upper portion of the panel (6), respectively. (9) is a heater mounting plate for fixing the bent portion (2a) of the heater (2) to the main body case (1) and the like, and (10) is a member having good heat conduction fastened to the heater mounting plate (9). (11) is an overheat prevention device attached to the heat conduction plate (10), and heat of the heater (2) is supplied to the heater attachment plate (9).
From the heat conduction plate (10) to the overheat prevention device (11).
次に、上記のように構成した本発明の作用を説明す
る。なお、通常の暖房時の作用は第５図で示した従来例
の場合と全く同様なので、説明を省略する。いま排気口
（８）が毛布等で塞がれるような異常事態が発生する
と、ヒータ（２）により暖められた空気は逃げ場を失
い、本体ケース（１）内にこもる。このため器内の空気
は更にヒータ（２）により暖められ、ヒータ（２）自身
の表面温度は急激に上昇する。このとき、温度過昇防止
器（11）を固定している熱伝導板（10）は、本体ケース
（１）内にこもった高温の空気と、ヒータ取付板（９）
を介して伝導されたヒータ（２）の熱により急激に温度
上昇する。このため温度過昇防止器（11）が動作し、ヒ
ータ（２）の通電を停止する。Next, the operation of the present invention configured as described above will be described. The operation at the time of normal heating is exactly the same as that of the conventional example shown in FIG. Now, when an abnormal situation occurs in which the exhaust port (8) is closed by a blanket or the like, the air heated by the heater (2) loses its escape space and stays inside the main body case (1). For this reason, the air in the vessel is further warmed by the heater (2), and the surface temperature of the heater (2) itself rises sharply. At this time, the heat conduction plate (10) to which the overheat prevention device (11) is fixed is connected to the high-temperature air trapped in the main body case (1) and the heater mounting plate (9).
The temperature rises rapidly due to the heat of the heater (2) transmitted through the heater. For this reason, the excessive temperature rise prevention device (11) operates, and the energization of the heater (2) is stopped.
第３図は一部を断面で示した本発明の他の実施例の正
面図、第４図は第３図のＢ−Ｂ断面図である。（９）は
ヒータ（２）の屈曲部（2a）を固定するヒータ取付板、
（10）はヒータ取付板（９）に共締めされた熱伝導板、
（11）は熱伝導板（10）に取り付けられた温度過昇防止
器である。（12）はヒータ（２）の屈曲部（2a）の近傍
において、ヒータ（２）の屈曲部（2a）と向い合うよう
な位置に取り付けられた温度過昇防止器（11）の感温部
である。FIG. 3 is a front view of another embodiment of the present invention, a part of which is shown in cross section, and FIG. 4 is a cross-sectional view taken along line BB of FIG. (9) a heater mounting plate for fixing the bent portion (2a) of the heater (2);
(10) is a heat conductive plate fastened to the heater mounting plate (9),
(11) is an over-temperature prevention device attached to the heat conduction plate (10). (12) is a temperature sensing portion of the overheat prevention device (11) mounted near the bent portion (2a) of the heater (2) so as to face the bent portion (2a) of the heater (2). It is.
上記のように構成した本実施例によれば、温度過昇防
止器（11）の感温部（12）が本体ケース（１）内にこも
った熱い空気にすばやく反応し、ヒータ（２）の通電を
停止する。According to the present embodiment configured as described above, the temperature sensing part (12) of the overheat prevention device (11) reacts quickly to the hot air trapped in the main body case (1), and the heater (2) Stop energization.
［発明の効果］ 以上の説明から明らかなように、本発明は、表面温度
が高くかつ温度上昇の早いヒータの屈曲部を本体ケース
等に取付ける取付板に熱伝導板を連結してヒータの屈曲
部に温度過昇防止器の感温部を臨ませて固定したので、
排気口を毛布で塞ぐような異常事態が発生した場合で
も、本体ケース内の異常の温度上昇にすばやく反応して
通電を停止することができる。このため、火傷や火災等
の事故を未然に防止することのできる安全な電気暖房器
を得ることができる。[Effects of the Invention] As is clear from the above description, the present invention relates to a method of bending a heater by connecting a heat conductive plate to a mounting plate for mounting a bent portion of a heater having a high surface temperature and a rapid temperature rise to a main body case or the like. Since the temperature sensing part of the overheat prevention device is facing to the part and fixed,
Even in the event of an abnormal situation such as closing the exhaust port with a blanket, the power supply can be stopped immediately in response to the abnormal temperature rise in the main body case. For this reason, a safe electric heater which can prevent accidents such as burns and fires can be obtained.
第１図は一部を断面で示した本発明実施例の正面図、第
２図はそのＡ−Ａ断面図、第３図は一部を断面で示した
本発明の他の実施例の正面図、第４図はそのＢ−Ｂ断面
図、第５図は従来の電気暖房機の一例を示す縦断面図で
ある。 図において、（１）は本体ケース、（２）はヒータ、
（2a）は屈曲部、（2b）は直管部、（３）は放熱フィ
ン、（７）は吸気口、（８）は排気口、（９）はヒータ
取付板、（10）は熱伝導板、（11）は温度過昇防止器、
（12）は感温部である。 なお、図中同一符号は同一、又は相当部分を示す。1 is a front view of an embodiment of the present invention partially shown in cross section, FIG. 2 is a sectional view taken along line AA of FIG. 2, and FIG. 3 is a front view of another embodiment of the present invention partially shown in cross section. FIG. 4 is a sectional view taken along line BB of FIG. 4, and FIG. 5 is a longitudinal sectional view showing an example of a conventional electric heater. In the figure, (1) is a main body case, (2) is a heater,
(2a) is a bent portion, (2b) is a straight pipe portion, (3) is a radiation fin, (7) is an intake port, (8) is an exhaust port, (9) is a heater mounting plate, and (10) is heat conduction. Plate, (11) is an overheat prevention device,
(12) is a temperature sensing part. In the drawings, the same reference numerals indicate the same or corresponding parts.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 湯地 康浩 群馬県新田郡尾島町大字岩松800番地 三菱電機株式会社群馬製作所内 (56)参考文献 実開 昭49−147865（ＪＰ，Ｕ) 実開 昭63−139452（ＪＰ，Ｕ) 実開 昭49−127247（ＪＰ，Ｕ) 実開 昭57−91051（ＪＰ，Ｕ) 実開 昭57−72590（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) F24H 9/20 F24H 3/04 302 F24C 7/04 - 7/06 F24C 7/08 320──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasuhiro Yuji 800, Iwamatsu, Ojima-cho, Nitta-gun, Nitta-gun, Gunma Mitsubishi Electric Corporation Gunma Manufacturing Co., Ltd. (56) References Japanese Utility Model 49-147865 (JP, U) Opened 63-139452 (JP, U) Opened 49-127247 (JP, U) Opened 57-91051 (JP, U) Opened 57-72590 (JP, U) (58) Int.Cl. 6 , DB name) F24H 9/20 F24H 3/04 302 F24C 7/04-7/06 F24C 7/08 320
Claims (1)
ルによって正面が覆われた本体ケースと、直管部に放熱
フィンを取り付けると共にヒータ取付板により屈曲部を
前記本体ケースに横向きに取り付けたＵ字状のヒーター
と、前記本体ケース内に設けられて異常時の温度上昇を
感知して前記ヒーターの通電を停止して温度の過昇を防
止する温度過昇防止器とを備えた電気暖房器において、 感温部が前記屈曲部の近傍に位置するように前記温度過
昇防止器を熱伝導板を介して前記取付板に取り付けてな
ることを特徴とする電気暖房器。1. A main body case whose front is covered by a panel having an exhaust port on an upper part and an intake port on a lower part, a radiation fin mounted on a straight pipe part, and a bent part mounted laterally on the main body case by a heater mounting plate. A U-shaped heater, and an over-temperature protector provided in the main body case to detect a rise in temperature at the time of abnormality and stop energization of the heater to prevent a rise in temperature. An electric heater comprising: a heater, wherein the overheat prevention device is attached to the mounting plate via a heat conducting plate so that a temperature sensing portion is located near the bent portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2028474A JP2822254B2 (en) | 1990-02-09 | 1990-02-09 | Electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2028474A JP2822254B2 (en) | 1990-02-09 | 1990-02-09 | Electric heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03233225A JPH03233225A (en) | 1991-10-17 |
| JP2822254B2 true JP2822254B2 (en) | 1998-11-11 |
Family
ID=12249647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2028474A Expired - Fee Related JP2822254B2 (en) | 1990-02-09 | 1990-02-09 | Electric heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2822254B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107166719A (en) * | 2017-06-01 | 2017-09-15 | 江苏九州电器有限公司 | Electric heater |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5147366Y2 (en) * | 1973-04-16 | 1976-11-16 | ||
| JPS6328877Y2 (en) * | 1980-10-21 | 1988-08-03 |
-
1990
- 1990-02-09 JP JP2028474A patent/JP2822254B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03233225A (en) | 1991-10-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |