JPH02189883A - Supporting structure for rod-shaped heat emitting body - Google Patents
Supporting structure for rod-shaped heat emitting bodyInfo
- Publication number
- JPH02189883A JPH02189883A JP590689A JP590689A JPH02189883A JP H02189883 A JPH02189883 A JP H02189883A JP 590689 A JP590689 A JP 590689A JP 590689 A JP590689 A JP 590689A JP H02189883 A JPH02189883 A JP H02189883A
- Authority
- JP
- Japan
- Prior art keywords
- rod
- heating element
- shaped heating
- tape
- view
- 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
Landscapes
- Resistance Heating (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、例えばシーズヒータの如き棒状発熱体の支持
構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a support structure for a rod-shaped heating element such as a sheathed heater.
［従来の技術］
第９図は従来の棒状発熱体の支持構造の一例を示す側面
図で、この支持構造は、例えば、シースヒータを発熱体
としたペースポードヒータ、電車用の暖房器、エアコン
用の暖房用空気加熱ヒータ等に用いられている。図にお
いて、（１）は例えば、シーズヒータからなる棒状発熱
体、（２）棒状発熱体（１）の電源電線、（３）は棒状
発熱体（１）を複数個所で支持固定する下部支持金具、
（４）は下部支持金具（３）をさらに支持する絶縁碍子
、（５） 、 （８）は下部支持金具（３）を絶縁碍子
（４）に取り付けるネジ及びナツトである。（７）は絶
縁碍子（４）を取り付ける取付板、（８）は絶縁碍子（
４）を取付板（７）に固定するネジで、棒状発熱体（１
）はこの絶縁碍子（４）により取付板（７）に対して電
気絶縁を保った状態で保持されている。（９）は棒状発
熱体（１）の相当位置に１〜２回巻き付けられたテープ
、（１０）はテープ（９）を上方から押える上部支持金
具、（１１）は上部支持金具（１０）を下部支持金具（
３）に取り付けるネジである。[Prior Art] Fig. 9 is a side view showing an example of a conventional support structure for a rod-shaped heat generating element. Used in air heating heaters, etc. In the figure, (1) is, for example, a rod-shaped heating element made of a sheathed heater, (2) a power wire for the rod-shaped heating element (1), and (3) is a lower support metal fitting that supports and fixes the rod-shaped heating element (1) at multiple locations. ,
(4) is an insulator that further supports the lower support metal fitting (3), and (5) and (8) are screws and nuts that attach the lower support metal fitting (3) to the insulator (4). (7) is the mounting plate for attaching the insulator (4), and (8) is the insulator (
4) to the mounting plate (7), attach the rod-shaped heating element (1) to the mounting plate (7).
) is held in a state of electrical insulation with respect to the mounting plate (7) by this insulator (4). (9) is a tape wrapped once or twice around the corresponding position of the rod-shaped heating element (1), (10) is an upper support fitting that presses the tape (9) from above, and (11) is an upper support metal fitting (10). Lower support bracket (
3) This is the screw to be attached to.
第１０図は第９図で示したテープ（９）の斜視図である
。このテープ（９）は耐熱性と不燃性を有するガラス繊
維（］２）で紡織されている。FIG. 10 is a perspective view of the tape (9) shown in FIG. 9. This tape (9) is made of glass fiber (2) that is heat resistant and nonflammable.
上記のように構成した従来の棒状発熱体の支持構造によ
れば、棒状発熱体り１）に通電されると棒状発熱体（１
）の温度が上昇し、棒状発熱体（１）は矢印Ａの方向に
熱膨張する。一方、電源か切れると棒状発熱体（１）は
矢印Ｂの方向に収縮する。According to the conventional support structure for a rod-shaped heating element configured as described above, when the rod-shaped heating element 1) is energized, the rod-shaped heating element 1)
) increases, and the rod-shaped heating element (1) thermally expands in the direction of arrow A. On the other hand, when the power is turned off, the rod-shaped heating element (1) contracts in the direction of arrow B.
［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棒状発熱体の支持構造によ
れば、棒状発熱体（１）が熱膨張と収縮のサイクルをく
り返すため、これに巻き付けられたテープ（９）が摩耗
してしまう。例えば、ステンレス製シーズヒータにおい
て、表面温度約３５０°Ｃ１支持金具（３）の間隔が約
５０ ｃｍとすると、約２．５ｍｍの熱膨張をすること
になる。このとき、ガラス繊維をテープ状に織った従来
のテープ（９）では、約１０００〜１２００回の通電サ
イクルで、テープ（９）がすり切れ、穴がおいてしまう
。このため、棒状発熱体（１）の支持がガタついて不安
定、不確実になり、長期間の使用により絶縁碍子（４）
が破損することもある。[Problems to be Solved by the Invention] According to the conventional support structure for a rod-shaped heating element configured as described above, since the rod-shaped heating element (1) repeats a cycle of thermal expansion and contraction, The tape (9) will wear out. For example, in a stainless steel sheathed heater, if the surface temperature is approximately 350° C. and the spacing between the supporting metal fittings (3) is approximately 50 cm, the thermal expansion will be approximately 2.5 mm. At this time, with the conventional tape (9) made of glass fibers woven into a tape shape, the tape (9) wears out and leaves holes after about 1,000 to 1,200 energization cycles. As a result, the support of the rod-shaped heating element (1) becomes unstable and unreliable due to shaking, and the insulator (4) becomes unstable after long-term use.
may be damaged.
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、耐用年数の長い棒状発熱体の支持構造を得るこ
とを目的とする。The present invention was made in order to solve the above problems, and an object of the present invention is to obtain a support structure for a rod-shaped heating element that has a long service life.
［課題を解決するための手段］
本発明は、上記の目的を達成するためになされたもので
、不燃性の繊維に金属線を補強材として加えて紡織した
テープを、棒状発熱体と支持金具との間に介在させて棒
状発熱体を支持した棒状発熱体の支持構造を提供するも
のである。[Means for Solving the Problems] The present invention has been made to achieve the above object, and uses a tape made of non-combustible fibers and metal wires as reinforcing materials to be used as a rod-shaped heating element and a supporting metal fitting. The present invention provides a support structure for a rod-shaped heating element in which the rod-shaped heating element is supported by being interposed between the rod-shaped heating element and the rod-shaped heating element.
［作用］
棒状発熱体か熱膨張、収縮をくり返しても、テプの補強
材である金属線の支持金具の押圧力に対して復元力を生
じるので、支持金具からテープがずれることがなく、ま
た補強材として金属線を使用しているため繊維が摩耗し
難い。[Function] Even if the rod-shaped heating element undergoes repeated thermal expansion and contraction, it generates a restoring force against the pressing force of the metal wire support metal reinforcing material of the tape, so the tape does not slip from the support metal fittings, and Since metal wire is used as a reinforcing material, the fibers are less likely to wear out.
［発明の実施例］
第１図は本発明の実施例を示す側面図、第２図は第１図
の要部の分解斜視図、第３図は第１図の要部の斜視図で
ある。なお、第９図、第１０図と同−又は相当部分には
同じ符号を付し、説明を省略する。（Ｉ３）は棒状発熱
体（１）の複数個所の外周に１〜２回巻き付けられたテ
ープである（第２図参照）。このテープ（１３）はガラ
スやセラミックのような不燃性の繊維を主材とし、鉄ク
ロム線のような、例えば、直径０．１〜０．２ｍｍ程度
の金属線を補強材として補添したものを綾目や正目でテ
ープ状に織ったものである。[Embodiment of the Invention] Fig. 1 is a side view showing an embodiment of the present invention, Fig. 2 is an exploded perspective view of the main part of Fig. 1, and Fig. 3 is a perspective view of the main part of Fig. 1. . Note that the same or equivalent parts as in FIGS. 9 and 10 are designated by the same reference numerals, and the description thereof will be omitted. (I3) is a tape wrapped once or twice around the outer periphery of the rod-shaped heating element (1) at multiple locations (see FIG. 2). This tape (13) is mainly made of non-combustible fibers such as glass or ceramics, and is supplemented with metal wires such as iron chrome wires with a diameter of about 0.1 to 0.2 mm as reinforcement materials. It is woven into a tape shape with a twill or straight pattern.
第３図の（１４）はテープ（１３）の主材となる繊維、
（１５）は補強材となる金属線を示す。なお、本実施例
においては、テープ（１３）のＩ’１ｌ（Ｌ）は、第１
図に示すように、」二部支持金具（１０）の１］（Ω）
よりも広くなるように選ばれている。(14) in Figure 3 is the fiber that is the main material of the tape (13).
(15) indicates a metal wire serving as a reinforcing material. In this example, I'1l(L) of the tape (13) is the first
As shown in the figure, "1] (Ω) of the two-part support bracket (10)
It was chosen to be wider than the
上記のように構成した本発明の詳細な説明すれば次の通
りである。棒状発熱体（１）に通電すると、棒状発熱体
（１）の温度が上昇し、第４図に示すように矢印Ａ方向
に熱膨張する。一方、電源が切れると棒状発熱体（１）
はＢ方向に収縮する。このとき、テープ（１３）の１１
１（Ｌ）は上部支持金具（］−０）ノ１】（Ω）より大
きく構成されているので、テープ（１３）は上部支持金
具（１０）側に固定され、棒状発熱体（１）のみかＡ又
はＢ方向に摺動する。すなわち、テープ（１３）の補強
材である金属線（１５）が上下の支持金具（１０） 、
（３）の押圧力に対して復元力を生じるので、上下の
支持金具（１０）、（３）からテープ（１３）かすれる
ことかなく、また補強材である金属線（１５）により繊
維（１４）が摩耗することもない。A detailed explanation of the present invention configured as above is as follows. When the rod-shaped heating element (1) is energized, the temperature of the rod-shaped heating element (1) rises and thermally expands in the direction of arrow A as shown in FIG. On the other hand, when the power is cut off, the rod-shaped heating element (1)
contracts in the B direction. At this time, 11 of tape (13)
Since 1 (L) is larger than the upper support fitting (]-0) no 1] (Ω), the tape (13) is fixed to the upper support fitting (10) side, and only the rod-shaped heating element (1) or slide in direction A or B. That is, the metal wire (15) that is the reinforcing material of the tape (13) is attached to the upper and lower support fittings (10),
Since a restoring force is generated against the pressing force of (3), the tape (13) does not fade from the upper and lower support fittings (10) and (3), and the reinforcing metal wire (15) allows the fiber (14) to ) will not wear out.
なお、第４図のように、下部支持金具（３）の１］（ｇ
′）もテープ（１３）の１１１（Ｌ）より小さくすると
、テープ（１３）が棒状発熱体（１）の熱膨張、収縮に
合せて、棒状発熱体（１）と共にずれる作用をより確実
に防止することができる。In addition, as shown in Fig. 4, the lower support bracket (3) 1] (g
') is also smaller than 111 (L) of the tape (13) to more reliably prevent the tape (13) from shifting along with the rod-shaped heating element (1) due to the thermal expansion and contraction of the rod-shaped heating element (1). can do.
第５図は本発明の他の実施例を示す斜視図、第６図は第
５図の作用説明図である。本実施例では、棒状発熱体（
１）を下部支持金具（３ａ）の上に載せ、上部支持金具
（１０）にテープ（１３ａ）を約２回巻きつけてネジ（
１１）で固定したものである。なお、下部支持金具（３
ａ）には棒状発熱体（１）が直接接触し、この状態で棒
状発熱体（１）の膨張、収縮がおこなわれるので、下部
支持金具（３ａ）の先端側（３０ａ）を外側下方に曲げ
て棒状発熱体（１）が滑りやすくなるよう構成しである
。本実施例は、棒状発熱体（１）か大きい場合に有利あ
る。また、第１図〜第４図で示した実施例の場合よりも
棒状発熱体（１）の熱膨張変位が大きい場合に有利で、
テープ（１３ａ）かすれにくいという特長がある。FIG. 5 is a perspective view showing another embodiment of the present invention, and FIG. 6 is an explanatory view of the operation of FIG. 5. In this example, a rod-shaped heating element (
1) on the lower support bracket (3a), wrap the tape (13a) around the upper support bracket (10) approximately twice, and tighten the screws (
11). In addition, the lower support metal fittings (3
The rod-shaped heating element (1) is in direct contact with a), and the rod-shaped heating element (1) expands and contracts in this state, so the tip side (30a) of the lower support fitting (3a) is bent outward and downward. The rod-shaped heating element (1) is configured to be easily slidable. This embodiment is advantageous when the rod-shaped heating element (1) is large. Further, it is advantageous when the thermal expansion displacement of the rod-shaped heating element (1) is larger than that in the embodiments shown in FIGS. 1 to 4.
The tape (13a) has the advantage of not being easily scratched.
第７図は本発明のさらに他の実施例を示す分解斜視図で
ある。本実施例では、下部支持金具（３）の上にネジ（
１１）の貫通穴（ｉ ］、 ａ ）を有するテープ（１
３ｂ）を敷き、次に棒状発熱体（１）をテープ（１３＋
１）上に載せ、テープ（１，３ｂ）の端末側を棒状発熱
体（１）の外周に沿わせて包むようにして巻き、さらに
、テープ（１３ｂ）の端末側をそれぞれ棒状発熱体（１
）の内側に延長して二重にしたのち、テープ（１３ｂ）
を上部支持金具（１０）によりネジ（Ｉ ｌ）で固定し
たものである。FIG. 7 is an exploded perspective view showing still another embodiment of the present invention. In this example, a screw (
11) Tape (1) with through holes (i], a)
3b), then place the rod-shaped heating element (1) on the tape (13+
1) Place the tape (1, 3b) on top of the rod-shaped heating element (1) and wrap it so that the end side of the tape (1, 3b) is wrapped along the outer periphery of the rod-shaped heating element (1).
) to the inside and double it, then tape (13b)
is fixed to the upper support fitting (10) with screws (Il).
本実施例は、上部支持金具（１０）と下部支持金具（３
）とによりテープ（１３ｂ）を確実に締め込むようにし
、棒状発熱体（１）の熱膨張収縮に対してテープ（１３
ｂ）がずれを生じないよしうにしたものである。In this embodiment, an upper support metal fitting (10) and a lower support metal fitting (3
) to securely tighten the tape (13b) against thermal expansion and contraction of the rod-shaped heating element (1).
(b) is designed to prevent misalignment.
第８図は本発明の別の実施例を示す分解斜視図である。FIG. 8 is an exploded perspective view showing another embodiment of the present invention.
本実施例ではテープ（１３ｃ）の両端にネジ（１１）の
貫通穴（Ｉｌｂ）を設け、このテープ（１３ｃ）により
棒状発熱体＜１）の外周を−巻きした後、テブ（］、３
ｃ）の２個所の貫通穴（Ｌｌｂ）を合せて重ね、更にネ
ジ（１１）により」二部支持金具（１，０ａ）を下部支
持金具（３）に固定したものである。In this example, through holes (Ilb) for screws (11) are provided at both ends of the tape (13c), and after wrapping the outer periphery of a rod-shaped heating element <1) with this tape (13c),
The two through holes (Llb) in c) are aligned and overlapped, and the two-part support fitting (1, 0a) is fixed to the lower support fitting (3) with screws (11).
本実施例においても、テープ（１３ｃ）に設けた貫通穴
（１，１ｂ）にネジ（１１）が貫通しているため、テプ
（１３ｃ）か棒状発熱体（１）に対してずれるのを防止
できる。Also in this example, since the screw (11) passes through the through hole (1, 1b) provided in the tape (13c), it is possible to prevent the tape (13c) from shifting against the rod-shaped heating element (1). can.
なお、上述の各実施例においては、棒状発熱体の２０，
０００回程度の熱膨張収縮サイクルに対しても、充分使
用に耐えることが確認された。In addition, in each of the above-mentioned examples, the rod-shaped heating element 20,
It was confirmed that the material could withstand use even after about 1,000 cycles of thermal expansion and contraction.
［発明の効果］
以上の説明から明らかなように、本発明によれば、ガラ
ス繊維等の不燃性の繊維に金属線を補強材として加えて
紡織したテープを、棒状発熱体と支持金具との間に介在
させるようにしたので、棒状発熱体の熱膨張収縮サイク
ルに対して、テープの耐摩耗性が向上し、長期間の使用
に耐え得る支持構造が得られた。また、テープの補強材
効果により、テープは圧縮復元力と引張り強度が向上す
るため、ずれにくく耐久性に優れた支持構造が得られる
。[Effects of the Invention] As is clear from the above description, according to the present invention, a tape made of nonflammable fibers such as glass fibers with metal wire added as a reinforcing material is used to connect a rod-shaped heating element and a supporting metal fitting. By interposing the tape in between, the abrasion resistance of the tape against the thermal expansion and contraction cycles of the rod-shaped heating element was improved, and a support structure capable of withstanding long-term use was obtained. Furthermore, the reinforcing material effect of the tape improves the compressive restoring force and tensile strength of the tape, resulting in a supporting structure that is resistant to slipping and has excellent durability.
第１図は本発明実施例の側面図、第２図は第１図の要部
の分解斜視図、第３図は本発明の要部をなすテープの斜
視図、第４図は第１図の実施例の作用説明図、第５図は
本発明の他の実施例の斜視図、第６図はその作用説明図
、第７図及びＳ８図は本発明のさらに他の実施例の分解
斜視図、第９図は従来の棒状発熱体の支持構造の一例を
示す側面図、第１０図はこれに使用されるテープの斜視
図である。
図において、（１）は棒状発熱体、（３） 、 （３ａ
）は下部支持金具、（４）は絶縁碍子、（５） 、 （
８） 、 （１１）はネジ、（６）はナツト、（７）は
取付板、（１０）、（１０ａ）は上部支持金具、（１３
） 、 （１，３ａ） 、 （１３ｂ） 、 （１，３
ｃ）はテープ、（１４）は繊維、（１５）は金属線であ
る。
なお、図中、同一符号は同一または相当部分を示すもの
とする。Fig. 1 is a side view of an embodiment of the present invention, Fig. 2 is an exploded perspective view of the main part of Fig. 1, Fig. 3 is a perspective view of the tape forming the main part of the invention, and Fig. 4 is the same as Fig. Fig. 5 is a perspective view of another embodiment of the present invention, Fig. 6 is an explanatory diagram of its action, and Figs. 7 and S8 are exploded perspective views of still other embodiments of the present invention. 9 is a side view showing an example of a conventional support structure for a rod-shaped heating element, and FIG. 10 is a perspective view of a tape used therein. In the figure, (1) is a rod-shaped heating element, (3), (3a
) is the lower support metal fitting, (4) is the insulator, (5), (
8), (11) are screws, (6) are nuts, (7) are mounting plates, (10) and (10a) are upper support brackets, (13) are
) , (1,3a) , (13b) , (1,3
c) is a tape, (14) is a fiber, and (15) is a metal wire. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
する棒状発熱体の支持構造において、不燃製の繊維を主
材とし、金属線を補強材として紡織したテープを前記棒
状発熱体と前記支持金具との間に介在させて前記棒状発
熱体を支持したことを特徴とする棒状発熱体の支持構造
。In a support structure for a rod-shaped heating element in which a rod-shaped heating element is supported at multiple locations by a pair of upper and lower support fittings, a tape made of non-combustible fiber as a main material and woven with metal wire as a reinforcing material is attached to the rod-shaped heating element and the support fittings. A support structure for a rod-shaped heating element, characterized in that the rod-shaped heating element is supported by being interposed between the rod-shaped heating element and the rod-shaped heating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1005906A JPH07123066B2 (en) | 1989-01-17 | 1989-01-17 | Support structure for rod-shaped heating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1005906A JPH07123066B2 (en) | 1989-01-17 | 1989-01-17 | Support structure for rod-shaped heating element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02189883A true JPH02189883A (en) | 1990-07-25 |
| JPH07123066B2 JPH07123066B2 (en) | 1995-12-25 |
Family
ID=11623944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1005906A Expired - Lifetime JPH07123066B2 (en) | 1989-01-17 | 1989-01-17 | Support structure for rod-shaped heating element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07123066B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019179704A (en) * | 2018-03-30 | 2019-10-17 | 株式会社日立プラントコンストラクション | Electric heater mounting structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50128739U (en) * | 1974-04-08 | 1975-10-22 | ||
| JPS53121539U (en) * | 1977-03-04 | 1978-09-27 |
-
1989
- 1989-01-17 JP JP1005906A patent/JPH07123066B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50128739U (en) * | 1974-04-08 | 1975-10-22 | ||
| JPS53121539U (en) * | 1977-03-04 | 1978-09-27 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019179704A (en) * | 2018-03-30 | 2019-10-17 | 株式会社日立プラントコンストラクション | Electric heater mounting structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07123066B2 (en) | 1995-12-25 |
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