JPS60138324A - Flame rod - Google Patents

Flame rod

Info

Publication number
JPS60138324A
JPS60138324A JP58249693A JP24969383A JPS60138324A JP S60138324 A JPS60138324 A JP S60138324A JP 58249693 A JP58249693 A JP 58249693A JP 24969383 A JP24969383 A JP 24969383A JP S60138324 A JPS60138324 A JP S60138324A
Authority
JP
Japan
Prior art keywords
flame
electrode
rod
ceramics
contacting part
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.)
Pending
Application number
JP58249693A
Other languages
Japanese (ja)
Inventor
Masaaki Hashimoto
橋本　正彰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Heating Appliances Co Ltd
Hitachi Netsu Kigu KK
Original Assignee
Hitachi Heating Appliances Co Ltd
Hitachi Netsu Kigu KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Heating Appliances Co Ltd, Hitachi Netsu Kigu KK filed Critical Hitachi Heating Appliances Co Ltd
Priority to JP58249693A priority Critical patent/JPS60138324A/en
Publication of JPS60138324A publication Critical patent/JPS60138324A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/12—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
    • F23N5/126—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods using electrical or electromechanical means

Abstract

PURPOSE:To enable molding of the titled rod in a complicated shape and to enable to reduce an insulated space, by a method wherein an electrode is molded of composite ceramics having conductivity, the whole of which other than a terminal part and a contacting part with a flame is covered with a coating material made of nonconductive ceramics. CONSTITUTION:Electrodes 6 are formed by confronting two pieces of them with each other, which are, for example, composite ceramics consisting of silicon carbide and zirconium boride at about 50% composition respectively and having conductivity. Coating material 9, for example, consists of nonconductive ceramics made of aluminum nitride. A terminal part 8 and a contacting part 7 with a flame are not coated and the electrode 6 is kept exposed. A flame rod 2 is fixed close to a burner 1, the contacting part 7 with a flame is positioned within the flame 4, existence of the flame 4 is detected and a gas valve 5 is controlled through a flame controller 3. With this construction, the electrode can be made into a complicated shape according to circumstances where it is used and an insulated space can be reduced.

Description

【発明の詳細な説明】 本発明はガス器具等における火炎を検知するフレームロ
ッドに関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flame rod for detecting flame in gas appliances and the like.

従来この種のフレームロッドは鉄クロノ・等よりなる剣
状の電極を磁器よりなる非導’ｉｆｆ、　（１１部４Ｊ
でイス；持する如く両者をセラミックで接着した構造で
あった。このため電極の形状を複雑な形状と一ノーるこ
とか困難であり、絶縁空間を大きくとらな゛ければなら
ないという欠点があった。Conventionally, this type of frame rod has a sword-shaped electrode made of iron, etc., and a non-conducting electrode made of porcelain, (Part 11 4J
The structure was such that the two were bonded together using ceramic. For this reason, it is difficult to determine the shape of the electrode in a complicated manner, and there is a drawback that a large insulating space must be provided.

本発明は上記の欠点を除くためになされたものであり、
電極を導電性を有する複合セラミックで形成し、この電
極全端子部及び接炎部を除いて非導電性のセラミックよ
りなる被覆部側で被覆したものである。この様な構成と
することにより絶縁性を持たぜることによって複雑な形
状での成形をｉ３Ｊ能とするとともに絶縁空間を少なく
できるようにしたものである。The present invention has been made to eliminate the above drawbacks,
The electrode is formed of a conductive composite ceramic, and all of the electrodes except the terminal portion and the flame contact portion are covered with a coating portion made of a non-conductive ceramic. With such a configuration, it is possible to provide insulation properties, thereby making it possible to mold into complex shapes, and to reduce the insulation space.

以下本発明の一実施例を第１図、第２図により説明する
。An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

図において、１）、；、バーナで、２は２本の電極から
なるフレーム［Ｉソドであるっ　６はフレームコントロ
ーラーであり、フレームロッド２で火炎４のイ］無を検
出し、ガス弁５を制御するものである。In the figure, 1) is a burner, 2 is a flame consisting of two electrodes, 6 is a flame controller, the flame rod 2 detects the absence of flame 4, and the gas valve 5 It controls the

第２図はアレーン、ロッド２の詳細図であり、６はｔｌ
ｔ極で２本がえｊ向して形成してあり１例えば炭化硅素
＜５１ｃ）　、ジルコニウムブライド（ＺｒＢ２）を夫
々約５０％組成とした導電性を有した複合セラミックよ
りなるものであるっこの電極６の一端側にリード線１０
を溶着してなる端子部８を有し、他端側に火炎４検出用
の接炎部７を設けである。９は被覆部側で１例えば窒化
アルミニウム（ＡｔＮ）の非導電Ｊ、４１．−１．ラミ
ック、１りなり、電極６を被い絶縁性を有している。更
に前記被覆部材９は端子部８及び接炎部７には被覆され
ず電極６は露出した−１．ｔと々つている。１１はフレ
ームロッド２を取付けるだめの穴である。Figure 2 is a detailed view of arene, rod 2, and 6 is a tl
Two t-poles are formed in the j direction, and are made of a conductive composite ceramic containing approximately 50% silicon carbide (<51c) and zirconium bride (ZrB2), respectively. A lead wire 10 is connected to one end of the electrode 6.
It has a terminal part 8 which is formed by welding, and a flame contact part 7 for detecting the flame 4 is provided on the other end side. 9 is a non-conductive J made of aluminum nitride (AtN), 41. -1. It is made of lamic and covers the electrode 6 and has insulating properties. Furthermore, the terminal portion 8 and the flame contact portion 7 were not covered by the covering member 9, and the electrode 6 was exposed.-1. T is on the rise. 11 is a hole for attaching the frame rod 2.

次に本実施例のｆ′１用について述べる。フレームロッ
ド２を増刊は川の穴１１を介してバーナ１の近傍に増刊
け、接炎部７を火炎４内に位置させる。Next, the f'1 function of this embodiment will be described. The frame rod 2 is added to the vicinity of the burner 1 through the river hole 11, and the flame contact part 7 is positioned within the flame 4.

これによりフレームロット２の接炎部７で火炎４のイｉ
　ｐ、１ｊｌｉを検出し、この検出結果によりフレーム
コンｌ−ｃ＋−ラー３を介してガス弁５を制御するもの
である。As a result, the flame 4 at the flame contact part 7 of the flame lot 2
p, 1jli are detected, and the gas valve 5 is controlled via the frame controller lc+-ler 3 based on the detection result.

以−に本発明によれば電極及びその抜覆部利をセラミッ
ク化することによシ、電極を使用場所に応じた’ｆＭ　
４’ｌｌな形状にすることが出来るとともに、必安な部
分のみ霧出させて電極とすることができるので絶縁空間
を小なくすることができるものである。According to the present invention, by making the electrode and its removal part ceramic,
In addition to being able to form a 4'll shape, only the essential parts can be atomized and used as electrodes, making it possible to reduce the insulation space.

４図面の簡’Ｉ”−ｌｒ：ＩＩ（閉 鎖１図は本発明の一実施例によるフレームロッドの取付
部の概略説明図、第２図は同じく要部側面図である。Figure 4 is a schematic explanatory diagram of a frame rod mounting portion according to an embodiment of the present invention, and Figure 2 is a side view of the main parts.

２　フレームロッド　６・・電　極 ７・−接炎部　８・端子部 ９　被覆部利 出願人　日立熱器具株式会社2 Frame rod 6... Electrode 7.- Flame contact part 8. Terminal part 9 Covering area Applicant: Hitachi Thermal Appliances Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] 火炎の中［２本の電極を対向させて、火炎の有無を検出
するフレームロッドにおいて、電極（６）を導電性を有
する複合セラミックで形成し、この電極（６）を端子部
（８）及び接炎部（７ンを除いて非導電性のセラミック
よりなる被覆部′Ａ′Ａ’　（９Ｊで被覆したことを特
徴とするフレームロッド。In a flame rod that detects the presence or absence of flame by placing two electrodes facing each other, the electrode (6) is formed of a conductive composite ceramic, and this electrode (6) is connected to the terminal portion (8) and the flame rod. A frame rod characterized in that the coating part 'A'A' (9J) is made of non-conductive ceramic except for the flame contact part (7N).
JP58249693A 1983-12-26 1983-12-26 Flame rod Pending JPS60138324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58249693A JPS60138324A (en) 1983-12-26 1983-12-26 Flame rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58249693A JPS60138324A (en) 1983-12-26 1983-12-26 Flame rod

Publications (1)

Publication Number Publication Date
JPS60138324A true JPS60138324A (en) 1985-07-23

Family

ID=17196793

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58249693A Pending JPS60138324A (en) 1983-12-26 1983-12-26 Flame rod

Country Status (1)

Country Link
JP (1) JPS60138324A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62131250U (en) * 1986-02-05 1987-08-19
EP0520507A2 (en) * 1991-06-28 1992-12-30 Samsung Electronics Co. Ltd. A flame rod structure and a compensating circuit and control method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62131250U (en) * 1986-02-05 1987-08-19
JPH0443710Y2 (en) * 1986-02-05 1992-10-15
EP0520507A2 (en) * 1991-06-28 1992-12-30 Samsung Electronics Co. Ltd. A flame rod structure and a compensating circuit and control method thereof

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