JPH048636Y2 - - Google Patents
Info
- Publication number
- JPH048636Y2 JPH048636Y2 JP1987098635U JP9863587U JPH048636Y2 JP H048636 Y2 JPH048636 Y2 JP H048636Y2 JP 1987098635 U JP1987098635 U JP 1987098635U JP 9863587 U JP9863587 U JP 9863587U JP H048636 Y2 JPH048636 Y2 JP H048636Y2
- Authority
- JP
- Japan
- Prior art keywords
- heating element
- resistance heating
- graphite
- recess
- connection terminal
- 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
Links
Landscapes
- Resistance Heating (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、グラフアイトヒータ等のグラフアイ
ト製抵抗発熱体に関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a graphite resistance heating element such as a graphite heater.
（従来技術とその問題点）
従来、前記グラフアイト製抵抗発熱体は、抵抗
発熱体本体であるグラフアイトの先端部にネジを
設け、このネジに金属製接続端子を螺着する構造
のものが広く使用されている。(Prior art and its problems) Conventionally, the graphite resistance heating element has a structure in which a screw is provided at the tip of the graphite that is the main body of the resistance heating element, and a metal connection terminal is screwed onto this screw. Widely used.
ところで、金属製接続端子を取り付けたグラフ
アイト製抵抗発熱体においては、グラフアイト製
抵抗発熱体本体と金属製接続端子とが密着状態に
ないと、両者の結合部の接触抵抗が大きくなり、
接合部でヒートロスが増大するだけでなく、微小
空隙ができて放電し、接合部が過熱して溶融し、
その結果、グラフアイト製抵抗発熱体が使えなく
なるという問題点を有する。 By the way, in a graphite resistance heating element with a metal connection terminal attached, if the graphite resistance heating element body and the metal connection terminal are not in close contact, the contact resistance at the joint between the two will increase.
Not only does heat loss increase at the joint, but micro-gaps are created and electrical discharge occurs, causing the joint to overheat and melt.
As a result, there is a problem that the graphite resistance heating element cannot be used.
さらに、前記従来のグラフアイト製抵抗発熱体
においては、抵抗発熱体本体のネジ山が欠けやす
いばかりか、グラフアイト製抵抗発熱体本体と金
属製接続端子とが異種材料であるため、熱膨張に
差異があり、温度変化を伴う条件下では、どうし
ても両者の密着状態を完全に保持することは物理
的に無理で、前記問題点を完全に解決することは
できない。 Furthermore, in the conventional graphite resistance heating element, not only are the screw threads on the resistance heating element body easily chipped, but also the graphite resistance heating element body and the metal connection terminal are made of different materials, so they are susceptible to thermal expansion. Under conditions where there are differences and temperature changes, it is physically impossible to maintain complete adhesion between the two, and the above problem cannot be completely solved.
本考案は、前記問題点を、簡単な構成で解決す
ることのできるグラフアイト製抵抗発熱体を提供
することを目的とする。 An object of the present invention is to provide a graphite resistance heating element that can solve the above problems with a simple configuration.
（前記問題点を解決すべき手段）
本考案は、前記目的を達成するために、グラフ
アイト製抵抗発熱体本体の端部にガス抜き孔付凹
所を設けるとともに、端部外周面および凹所内周
面とに係合部を設け、この係合部に金属製接続端
子を鋳込接合したものである。(Means for solving the above problems) In order to achieve the above object, the present invention provides a recess with a gas vent hole at the end of the graphite resistance heating element main body, and also An engaging portion is provided on the peripheral surface, and a metal connecting terminal is cast-jointed to this engaging portion.
（実施例）
つぎに、本考案の一実施例を図面にしたがつて
説明する。(Example) Next, an example of the present invention will be described with reference to the drawings.
本考案にかかるグラフアイト製抵抗発熱体１
は、第１図に示すように、グラフアイトからなる
抵抗発熱体本体２の端部外周に螺旋または溝等の
係合部４を設け、この端部に、金属製接続端子７
を鋳込接合したものである。 Graphite resistance heating element 1 according to the present invention
As shown in FIG. 1, an engaging part 4 such as a spiral or groove is provided on the outer periphery of the end of the resistance heating element main body 2 made of graphite, and a metal connecting terminal 7 is provided at this end.
It is made by casting and joining.
すなわち、グラフアイト製抵抗発熱体本体２の
一端部に凹所３を設けて、端部の外周面および凹
所３の内周面とに、螺旋、環状段部等の係合部
４，４′を設けるとともに、前記凹所３の底部か
ら抵抗発熱体本体２の外周面に至るＬ形のガス抜
き孔５を設けた構成となつている。 That is, a recess 3 is provided at one end of the graphite resistance heating element main body 2, and engaging portions 4, 4 such as spiral or annular steps are formed on the outer peripheral surface of the end and the inner peripheral surface of the recess 3. ', and an L-shaped gas vent hole 5 extending from the bottom of the recess 3 to the outer peripheral surface of the resistance heating element main body 2.
そして、このグラフアイト製抵抗発熱体本体２
の端部を、第２図に示すように、金型８内に装入
し、グラフアイトが酸化されないように不活性雰
囲気下で、たとえば、銅、銅合金あるいは、ステ
ンレス等の金属溶湯６を注入し、金属溶湯６を固
化することにより金属製接続端子７を鋳込接合し
てグラフアイト製抵抗発熱体１とするものであ
る。 And this graphite resistance heating element main body 2
As shown in FIG. 2, the end of the graphite is placed in a mold 8, and a molten metal 6 of copper, copper alloy, stainless steel, etc. is poured into it under an inert atmosphere to prevent the graphite from being oxidized. By injecting and solidifying the molten metal 6, the metal connection terminals 7 are cast-jointed to form the graphite resistance heating element 1.
この場合、金属製接続端子７は、グラフアイト
製抵抗発熱体本体２の係合部４，４′の存在によ
り、グラフアイト製抵抗発熱体本体２と金属製接
続端子７とは強固な一体密着状態となる。したが
つて、両者の熱膨張に差異が生じても、係合部
４，４′のいずれかで密着状態を確保することが
できる。また、グラフアイト製抵抗発熱体本体２
を金属溶湯６中に装入する際、凹所３内の気体
は、Ｌ形のガス抜き孔５から脱気し、凹所３内に
金属溶湯６を容易に充填することができる。 In this case, due to the presence of the engaging portions 4 and 4' of the graphite resistance heating element body 2, the graphite resistance heating element body 2 and the metal connection terminal 7 are tightly and integrally connected. state. Therefore, even if there is a difference in thermal expansion between the two, a close contact state can be ensured at either of the engaging portions 4, 4'. In addition, graphite resistance heating element body 2
When charging the molten metal 6 into the molten metal 6, the gas in the recess 3 is evacuated through the L-shaped gas vent hole 5, and the molten metal 6 can be easily filled into the recess 3.
（考案の効果）
以上の説明で明らかなように、本考案によれ
ば、グラフアイト製抵抗発熱体本体と金属製接続
端子との接合は、抵抗発熱体本体の端部に設けた
係合部とガス抜き孔付凹所に金属製端子を鋳込接
合によつて接続端子を一体化したものであるか
ら、両者の密着性は、たとえ両者の熱膨張に差異
があつても完全であり、ヒータの接続抵抗の低下
により電力ロスが軽減するとともに、耐久性が向
上するという効果を有する。(Effects of the invention) As is clear from the above explanation, according to the invention, the connection between the graphite resistance heating element body and the metal connection terminal is achieved through the engagement portion provided at the end of the resistance heating element body. Since the connection terminal is integrated by casting and joining the metal terminal in the recess with the gas vent hole, the adhesion between the two is perfect even if there is a difference in thermal expansion between the two. The reduction in the connection resistance of the heater reduces power loss and improves durability.
第１図は本考案の一実施例を示す断面図で、第
２図は接続端子の接合方法を示す説明図である。
１……グラフアイト製抵抗発熱体、２……グラ
フアイト製抵抗発熱体本体、３……凹所、４，
４′……係合部、６……金属溶湯、７……金属製
接続端子。
FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is an explanatory view showing a method of joining connection terminals. 1... Resistance heating element made of graphite, 2... Resistance heating element body made of graphite, 3... Recess, 4,
4'... Engaging portion, 6... Molten metal, 7... Metal connection terminal.
Claims (1)
抗発熱体において、グラフアイト製抵抗発熱体本
体の端部にガス抜き孔付凹所を設けるとともに、
端部外周面および凹所内周面とに係合部を設け、
この係合部に金属製接続端子を鋳込接合したこと
を特徴とするグラフアイト製抵抗発熱体。 In a graphite resistance heating element with a metal connection terminal attached, a recess with a gas vent hole is provided at the end of the graphite resistance heating element body, and
An engaging portion is provided on the outer peripheral surface of the end and the inner peripheral surface of the recess,
A resistance heating element made of graphite, characterized in that a metal connection terminal is cast-jointed to the engaging portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987098635U JPH048636Y2 (en) | 1987-06-26 | 1987-06-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987098635U JPH048636Y2 (en) | 1987-06-26 | 1987-06-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS644088U JPS644088U (en) | 1989-01-11 |
| JPH048636Y2 true JPH048636Y2 (en) | 1992-03-04 |
Family
ID=31325085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987098635U Expired JPH048636Y2 (en) | 1987-06-26 | 1987-06-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH048636Y2 (en) |
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| US6871151B2 (en) | 1997-11-03 | 2005-03-22 | Midtronics, Inc. | Electronic battery tester with network communication |
| US6885195B2 (en) | 1996-07-29 | 2005-04-26 | Midtronics, Inc. | Method and apparatus for auditing a battery test |
| US6888468B2 (en) | 2003-01-22 | 2005-05-03 | Midtronics, Inc. | Apparatus and method for protecting a battery from overdischarge |
| US6891378B2 (en) | 2003-03-25 | 2005-05-10 | Midtronics, Inc. | Electronic battery tester |
| US6906522B2 (en) | 2002-03-29 | 2005-06-14 | Midtronics, Inc. | Battery tester with battery replacement output |
| US6909287B2 (en) | 1997-11-03 | 2005-06-21 | Midtronics, Inc. | Energy management system for automotive vehicle |
| US6913483B2 (en) | 2003-06-23 | 2005-07-05 | Midtronics, Inc. | Cable for electronic battery tester |
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|---|---|---|---|---|
| JP2568743Y2 (en) * | 1992-07-09 | 1998-04-15 | 株式会社小森コーポレーション | Remaining paper length meter |
-
1987
- 1987-06-26 JP JP1987098635U patent/JPH048636Y2/ja not_active Expired
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Also Published As
| Publication number | Publication date |
|---|---|
| JPS644088U (en) | 1989-01-11 |
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