JP3179901U

JP3179901U - Electric heating element

Info

Publication number: JP3179901U
Application number: JP2012005570U
Authority: JP
Inventors: 和徳庵地; 博鳥居; 勝平尾
Original assignee: 高橋電機株式会社
Priority date: 2012-09-12
Filing date: 2012-09-12
Publication date: 2012-11-22
Anticipated expiration: 2022-09-12

Abstract

【課題】温度上昇の立ち上がりが早く、速熱性に優れ、しかも希望する一定の温度確保、維持にも安定的で、温度低下も早く、速冷性に優れ、確実に保持、固定できる電気発熱体を提供する。
【解決手段】非導電性材料の円柱状芯棒２の外表面に導電性金属材料で長さＬと幅Ｈと厚みＭとを有した帯状ヒータ３を巻回してなる電気発熱体１に於いて、上記帯状ヒータ３は、厚みＭ側を円柱状芯棒２の外表面に当接しつつ幅Ｈ側を立設させ、螺旋状に間隔を隔てて巻回してなる構成としている。又、帯状ヒータ３は、その表裏面の長手方向に波形状又は凹凸状を交互に配設してなる構成としている。
【選択図】図３An electric heating element that quickly rises in temperature, has excellent rapid heating characteristics, is stable in securing and maintaining a desired constant temperature, has a rapid temperature drop, has excellent rapid cooling characteristics, and can be securely held and fixed. I will provide a.
In an electric heating element 1, a strip-shaped heater 3 having a length L, a width H, and a thickness M made of a conductive metal material is wound around an outer surface of a cylindrical core rod 2 made of a nonconductive material. The belt-like heater 3 has a structure in which the thickness M side is in contact with the outer surface of the cylindrical core rod 2 while the width H side is erected and is spirally wound at intervals. Moreover, the strip | belt-shaped heater 3 is set as the structure formed by arrange | positioning a wave shape or uneven | corrugated shape by turns in the longitudinal direction of the front and back.
[Selection] Figure 3

Description

本考案は、電気調理器や電気暖房器、乾燥機等に用いられる電気発熱体に関するものである。 The present invention relates to an electric heating element used for an electric cooker, an electric heater, a dryer or the like.

従来、電気発熱体としては、碍子、耐熱ガラス管、絶縁耐熱パイプ等の非導電性の芯棒の外表面に導電性金属材料の線状又は帯状のテープ状ヒータを裸状態で巻回した構造の電気発熱体が特開平５−３６４７１号公報（特許文献１、図１参照）として存在する。 Conventionally, as an electric heating element, a structure in which a linear or belt-like tape-shaped heater made of a conductive metal material is wound barely around the outer surface of a non-conductive core rod such as an insulator, a heat-resistant glass tube, or an insulated heat-resistant pipe No. 5,36471 (see Patent Document 1, FIG. 1).

特開平５−３６４７１号公報（図１参照）Japanese Patent Laid-Open No. 5-36471 (see FIG. 1)

以下、特許文献１の図１により従来の電気発熱体について説明する。
この特許文献１の電気発熱体。特に非導電性の芯棒の外表面に巻回するヒータは、テープ状であって、線状に比べて断線の恐れがほとんど無く、しかも芯棒の外表面にほとんど隙間なく螺旋状に巻回している構造である。 Hereinafter, a conventional electric heating element will be described with reference to FIG.
The electric heating element of this Patent Document 1. In particular, the heater wound around the outer surface of the non-conductive core rod is in the form of a tape, and there is almost no risk of disconnection compared to the linear shape, and it is wound spirally around the outer surface of the core rod with almost no gap. It is a structure.

ところが、非導電性の芯棒の外表面に巻回するヒータは、細長い面全体を芯棒の外表面に沿って螺旋状に巻回している。このような構成によれば、ヒータの立ち上がりも早くなり、速熱性に優れてはいるが、芯棒の外表面にほとんど隙間なく螺旋状に巻回されているために、電源をオフしても温度低下が異常に遅く、冷め難いという問題点があった。 However, the heater wound around the outer surface of the non-conductive core rod has the entire elongated surface spirally wound along the outer surface of the core rod. According to such a configuration, the heater starts up quickly and is excellent in rapid thermal performance, but since it is spirally wound around the outer surface of the core rod with almost no gap, even if the power is turned off. There was a problem that the temperature drop was abnormally slow and difficult to cool.

非導電性材料の円柱状芯棒２の外表面に導電性金属材料で長さＬと幅Ｈと厚みＭとを有した帯状ヒータ３を巻回してなる電気発熱体１に於いて、上記帯状ヒータ３は、厚みＭ側を円柱状芯棒２の外表面に当接しつつ幅Ｈ側を立設させ、螺旋状に間隔を隔てて巻回してなる構成としている。又、帯状ヒータ３は、その表裏面の長手方向に波形状又は凹凸状を交互に配設してなる構成としている。 In the electric heating element 1 formed by winding a strip heater 3 having a length L, a width H, and a thickness M made of a conductive metal material on the outer surface of a cylindrical core rod 2 made of a non-conductive material. The heater 3 has a structure in which the thickness H side is in contact with the outer surface of the cylindrical core rod 2 while the width H side is erected and wound in a spiral manner at intervals. Moreover, the strip | belt-shaped heater 3 is set as the structure formed by arrange | positioning a wave shape or uneven | corrugated shape by turns in the longitudinal direction of the front and back.

本考案は、従来の問題点を解決したものであって、温度上昇の立ち上がりが早く、速熱性に優れ、しかも希望する一定の温度確保、維持にも安定的で、温度低下も早く、速冷性に優れ、確実に保持、固定できる電気発熱体を提供するにある。 The present invention solves the conventional problems, and the rise of the temperature rises quickly, it is excellent in rapid thermal performance, is stable in securing and maintaining a desired constant temperature, the temperature is rapidly lowered, and it is cooled quickly. An object of the present invention is to provide an electric heating element that has excellent properties and can be reliably held and fixed.

本考案実施例の一部を切断した帯状ヒータの斜視図。The perspective view of the strip | belt-shaped heater which cut a part of Example of this invention. 本考案実施例の帯状ヒータの一部を示す拡大斜視図。The expansion perspective view which shows a part of strip | belt-shaped heater of an Example of this invention. 本考案実施例の電気発熱体を示す斜視図。The perspective view which shows the electric heating element of the Example of this invention. 本考案他実施例の電気発熱体のユニットを示す斜視図。The perspective view which shows the unit of the electric heating body of this invention other Example.

電気発熱体１は、非導電性材料の円柱状芯棒２と、この円柱状芯棒２の外表面に螺旋状に巻回される導電性金属材料で長さＬと幅Ｈと厚みＭとを有した帯状ヒータ３とから構成されている。 The electric heating element 1 includes a cylindrical core rod 2 made of a non-conductive material, and a conductive metal material spirally wound around the outer surface of the cylindrical core rod 2, and has a length L, a width H, a thickness M, It is comprised from the strip | belt-shaped heater 3 which has.

非導電性材料の円柱状芯棒２は、石英管、耐熱ガラス管等の中空状又は中実状の絶縁耐熱棒に形成されている。
この円柱状芯棒２にあっては、特に帯状ヒータ３が巻き付けやすい形状であれば、横断面多角形状であってもよい。 The cylindrical core rod 2 made of a non-conductive material is formed as a hollow or solid insulating heat-resistant rod such as a quartz tube or a heat-resistant glass tube.
The cylindrical core rod 2 may have a polygonal cross section as long as the strip heater 3 can be easily wound around.

帯状ヒータ３は、図1乃至図３に示すように、細長い板状であって、長手方向の長さＬと短手方向の幅Ｈと厚みＭとを有しており、この長手方向に沿って波形状に形成されている。又この帯状ヒータ３の波形状に変わって凹凸を交互に配設してなる凹凸状としてもよい。この波形状又は凹凸状とすることによって、厚みＭ側を円柱状芯棒２の外表面に当接することが極めて容易となっている。 As shown in FIGS. 1 to 3, the belt-like heater 3 is in the form of an elongated plate, and has a length L in the longitudinal direction, a width H and a thickness M in the lateral direction, and extends along this longitudinal direction. It is formed into a wave shape. Moreover, it is good also as an uneven | corrugated shape formed by arrange | positioning an unevenness | corrugation alternately instead of the wave shape of this strip | belt-shaped heater 3. FIG. By making this wave shape or concavo-convex shape, it becomes extremely easy to contact the thickness M side with the outer surface of the cylindrical core rod 2.

この帯状ヒータ３は、図３に示すように、円柱状芯棒２の外表面に一方の厚みＭ側を当接しつつ、幅Ｈ側を立てながらその状態で順次所定の間隔を隔てて螺旋状に巻回している。この幅Ｈ側を立てながら螺旋状に巻回することによって、幅Ｈ側がフィンの働きを有することとなり、電源をオフ後の放熱を加速させることができる。 As shown in FIG. 3, the belt-like heater 3 is spirally spaced at a predetermined interval in that state while the width H side is raised while the thickness M side is in contact with the outer surface of the cylindrical core rod 2. It is wound around. By winding this width H side in a spiral manner, the width H side functions as a fin, and heat dissipation after turning off the power supply can be accelerated.

この厚みＭ側を当接しつつ、幅Ｈ側を立てながら螺旋状に巻回する帯状ヒータ３では、所定の温度に達するまてに要する時間が通常の螺旋状に巻回した線ヒータに比べて約３０パーセント程度早くなることが判明している。
又、電源をオフして通常温度に戻すまでの時間も上記線ヒータに比べて約３０パーセント程度早くなることが判明している。 In the belt-like heater 3 wound spirally while contacting the thickness M side and standing up the width H side, the time required to reach a predetermined temperature is compared with a line heater wound in a normal spiral shape. It has been found that it is about 30 percent faster.
It has also been found that the time from turning off the power to returning to the normal temperature is about 30 percent faster than that of the line heater.

次に、電気発熱体１を箱型ユニット４にセットした状態を図４に示している。
この箱型ユニット４には、図４に示すように、複数本の電気発熱体１が並設してセットされており、一本の帯状ヒータ３が複数本の円柱状芯棒２に螺旋状に巻回されている。この各電気発熱体１に巻回される帯状ヒータの巻く回数は、並設された複数本の電気発熱体の全てが同じ巻く回数とは限らず、中央に近いほど巻く回数を減らして、箱型ユニット４の表面全体が均一に加熱又は放熱されるようにしてもよい。 Next, a state where the electric heating element 1 is set in the box-type unit 4 is shown in FIG.
As shown in FIG. 4, a plurality of electric heating elements 1 are set in parallel in the box-type unit 4, and one strip heater 3 is spirally formed on the plurality of cylindrical core rods 2. It is wound around. The number of windings of the belt-like heater wound around each electric heating element 1 is not necessarily the same as the number of windings of the plurality of electric heating elements arranged in parallel. The entire surface of the mold unit 4 may be uniformly heated or radiated.

１…電気発熱体
２…円柱状芯棒
３…帯状ヒータ
４…箱型ユニット DESCRIPTION OF SYMBOLS 1 ... Electric heating element 2 ... Cylindrical core 3 ... Strip heater 4 ... Box-type unit

Claims

A belt-shaped heater (3) having a length (L), a width (H), and a thickness (M) made of a conductive metal material is wound around the outer surface of a cylindrical core rod (2) made of a non-conductive material. In the electric heating element (1), the belt-like heater (3) is provided in a spiral shape with the width (H) side standing while the thickness (M) side is in contact with the outer surface of the cylindrical core rod (2). An electric heating element, wherein the electric heating element is wound at intervals.

The electric heating element according to claim 1, wherein the belt-like heater (3) is formed by alternately arranging wave shapes or irregularities in the longitudinal direction of the front and back surfaces thereof.