JPH08266909A - Metal carrier for electric heating type catalyst device and its manufacture - Google Patents
Metal carrier for electric heating type catalyst device and its manufactureInfo
- Publication number
- JPH08266909A JPH08266909A JP7071546A JP7154695A JPH08266909A JP H08266909 A JPH08266909 A JP H08266909A JP 7071546 A JP7071546 A JP 7071546A JP 7154695 A JP7154695 A JP 7154695A JP H08266909 A JPH08266909 A JP H08266909A
- Authority
- JP
- Japan
- Prior art keywords
- honeycomb body
- honeycomb
- plate
- metal carrier
- flat
- 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
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 105
- 239000002184 metal Substances 0.000 title claims abstract description 105
- 239000003054 catalyst Substances 0.000 title claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 title claims description 15
- 238000005485 electric heating Methods 0.000 title abstract description 5
- 239000000463 material Substances 0.000 claims description 89
- 238000005219 brazing Methods 0.000 claims description 23
- 230000002093 peripheral effect Effects 0.000 claims description 19
- 239000010410 layer Substances 0.000 claims description 17
- 239000011247 coating layer Substances 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 9
- 239000003989 dielectric material Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 3
- DFPAKSUCGFBDDF-UHFFFAOYSA-N Nicotinamide Chemical compound NC(=O)C1=CC=CN=C1 DFPAKSUCGFBDDF-UHFFFAOYSA-N 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 5
- 230000004323 axial length Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 239000000615 nonconductor Substances 0.000 description 6
- 230000008646 thermal stress Effects 0.000 description 6
- 230000003197 catalytic effect Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010411 electrocatalyst Substances 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Laminated Bodies (AREA)
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は内燃機関の排気ガス浄化
装置に用いられるハニカム体をなす触媒装置用メタル担
体に関し、特に電気加熱式触媒装置用メタル担体に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal carrier for a catalytic device forming a honeycomb body used in an exhaust gas purifying device for an internal combustion engine, and more particularly to a metal carrier for an electrically heated catalytic device.
【０００２】[0002]
【従来の技術】従来の排気ガス浄化装置に用いられる触
媒装置用メタル担体は、薄い金属の平板と波板の間にろ
う材を介在させて、平板と波板を重ねて中心からロール
状に巻き込んでハニカム体を形成し、高真空炉を使用し
てろう材を溶融させ、板材の接触部分において接合を行
っていた。ろう材にはＮｉ基ろう材を用い、かつ平板と
波板にはフェライト系ステンレス材料が使用されてい
た。そのようにして形成されたハニカム体を金属製外筒
内に収容したものが触媒装置用メタル担体として知られ
ている（例えば特開昭６５−４３７３号公報）。2. Description of the Related Art A metal carrier for a catalyst device used in a conventional exhaust gas purifying apparatus has a brazing filler metal interposed between a thin metal flat plate and a corrugated plate, and the flat plate and the corrugated plate are superposed and rolled into a roll from the center. A honeycomb body is formed, a brazing material is melted using a high vacuum furnace, and joining is performed at a contact portion of the plate materials. A Ni-based brazing material was used as the brazing material, and a ferritic stainless steel material was used as the flat plate and the corrugated plate. A honeycomb carrier formed in such a manner and housed in a metal outer cylinder is known as a metal carrier for a catalyst device (for example, JP-A-65-4373).
【０００３】ハニカム体のハニカム通路表面には触媒担
持層が形成され、その触媒担持層に貴金属触媒が担持さ
れて排気ガス浄化触媒の役目をなす。そして内燃機関の
排気通路に配設されて排気ガス中のＨＣ，ＣＯ，ＮＯｘ
などを浄化する。なお限られた容積中にできるだけ多く
のハニカム通路面積を確保する必要から、平板および波
板の厚さは強度を維持できる範囲内でできるだけ薄くな
っている。A catalyst supporting layer is formed on the surface of the honeycomb passage of the honeycomb body, and a noble metal catalyst is supported on the catalyst supporting layer to serve as an exhaust gas purifying catalyst. HC, CO, and NOx in the exhaust gas are provided in the exhaust passage of the internal combustion engine.
Etc. Since it is necessary to secure as large a honeycomb passage area as possible in a limited volume, the thickness of the flat plate and the corrugated plate is made as thin as possible within a range where strength can be maintained.
【０００４】上述した触媒担持層に担持された貴金属触
媒は、ある程度の高温環境下で触媒反応が促進されるの
で、触媒装置はできるだけ、高温の排気ガスに曝される
ように内燃機関の排気弁の近くに設けられている。Since the catalytic reaction of the noble metal catalyst supported on the catalyst supporting layer described above is promoted in a high temperature environment to some extent, the exhaust gas of the internal combustion engine is exhausted so that the catalytic device is exposed to the exhaust gas at a temperature as high as possible. It is provided near the.
【０００５】また、ハニカム体を通過する排気ガスの流
速がハニカム体の外層部より内層部に至るほど大きく、
したがってハニカム体では高温の排気ガスとの接触、触
媒反応による発熱および外筒からの熱放散により、内層
部ほど高温で外層部ほど低温となる温度分布を生じる。
この温度分布により、温度の高いハニカム体の内層部の
膨張・収縮量が、温度の低い外層部の膨張・収縮量より
大となるため、内層部と外層部との間に熱応力が発生す
る。この熱応力は、ハニカム体の膨張・収縮の度に繰り
返されるが、従来の触媒装置用メタル担体においては、
全ての平板材と波板材とがろう材を介して一体にろう付
けされているため熱応力を逃がすことができず、長期間
の使用により平板材と波板材との接合箇所が破断すると
いう欠点がある。Further, the flow velocity of the exhaust gas passing through the honeycomb body is higher from the outer layer portion to the inner layer portion of the honeycomb body,
Therefore, in the honeycomb body, due to contact with high-temperature exhaust gas, heat generation due to catalytic reaction, and heat dissipation from the outer cylinder, a temperature distribution is generated in which the inner layer portion has a higher temperature and the outer layer portion has a lower temperature.
Due to this temperature distribution, the expansion / contraction amount of the inner layer portion of the high temperature honeycomb body becomes larger than the expansion / contraction amount of the outer layer portion of the low temperature, so that thermal stress is generated between the inner layer portion and the outer layer portion. . This thermal stress is repeated every time the honeycomb body expands and contracts, but in the conventional metal carrier for a catalyst device,
Since all flat plates and corrugated sheets are brazed together via brazing filler metal, thermal stress cannot be released, and the joints between flat sheets and corrugated sheets are broken after long-term use. There is.
【０００６】この欠点を除くために、ハニカム体の外側
から２層以上の範囲において平板材を２枚重ねとし、そ
の２枚の間は接合せず単に重ねられて、その２枚の平板
材同志が互いに自由に滑って熱応力を緩和するようにな
っている所謂平板二重構造のハニカム体をなすメタル担
体が開示されているが、実際には２枚の平板材の間は密
着しているので、ハニカム体をろう付けする際の加熱に
よって、２枚の平板材の間は固相拡散によるメタルタッ
チが生じてある程度固定されるほか、２枚の平板材の間
は接触面積が大きいため相互移動に対する抵抗が大であ
って、自由な動きが制約されるという欠点がある。In order to eliminate this defect, two flat plate materials are stacked in a range of two or more layers from the outside of the honeycomb body, and the two flat plate materials are simply stacked without being joined to each other. There is disclosed a metal carrier which constitutes a so-called flat plate double structure honeycomb body in which the two slide freely to relax the thermal stress, but in reality, the two flat plate members are in close contact with each other. Therefore, the heating when brazing the honeycomb body causes a metal touch between the two flat plate materials due to solid-phase diffusion to be fixed to a certain extent. There is a drawback that the resistance to movement is great and free movement is restricted.
【０００７】この欠点を除くため、帯状をなす薄い金属
板を折曲げて連続的な波形の凹凸を形成した第２の波板
材が、２枚重ねられた平板材の間において、接合される
ことなく配設されて、熱応力の緩和が行われるメタル担
体が開示されている。In order to eliminate this drawback, a second corrugated sheet material in which a strip-shaped thin metal sheet is bent to form continuous corrugation is joined between two flat sheet materials. Disclosed is a metal carrier which is disposed without any treatment to reduce thermal stress.
【０００８】しかしながら、このような触媒装置用メタ
ル担体においては、内燃機関の始動時には排気ガスの温
度が低いため触媒反応が充分に行われず、そのため排気
ガス中のＨＣ，ＣＯ，ＮＯｘなどを浄化する能力が不充
分となる。この欠点を除くため種々の電気加熱式触媒装
置用メタル担体が開示されている。上述の平板二重構造
の電気加熱式メタル担体においては、前述の第２の波板
材の表面に酸化アルミニウムなどの被膜層を施して、ハ
ニカム体のロール状に巻き回された層の間を電気的に絶
縁し、またハニカム体の巻き始めと巻き終りの板材の端
部にそれぞれ電源と接続するための電極を設けている。However, in such a metal carrier for a catalyst device, the catalyst reaction is not sufficiently performed because the temperature of the exhaust gas is low at the time of starting the internal combustion engine, so that HC, CO, NOx, etc. in the exhaust gas are purified. Inadequate ability. In order to eliminate this drawback, various metal carriers for electrically heated catalytic devices have been disclosed. In the electrically heated metal carrier having the above-mentioned flat plate double structure, a coating layer of aluminum oxide or the like is formed on the surface of the above-mentioned second corrugated sheet material, and the layer between the layers wound in a roll shape of the honeycomb body is electrically connected. Are electrically insulated, and electrodes for connecting to a power source are provided at the ends of the plate material at the beginning and end of winding of the honeycomb body, respectively.
【０００９】しかしながら、上述したようなハニカム体
全体を電気加熱する電気加熱式メタル担体においても、
同じ外径の場合に軸方向寸法が短い方が、同じ消費電力
を使用しても所要温度までの加熱時間は短くなる。した
がって、容量の大きいメタル担体や容量は小さいがより
少ない消費電力で有効な電気加熱を行わんとする電気加
熱式メタル担体では、図７に示すように、メタル担体６
０の中のハニカム体を２分割して、電気加熱するのに適
当な容量の第１のメタル担体６１と、加熱部分を含まな
い主要なメタル担体を形成する第２のメタル担体６２と
を直列に配設したものでが開示されている。However, even in the electrically heated metal carrier for electrically heating the entire honeycomb body as described above,
When the outer diameter is the same, the shorter the axial dimension is, the shorter the heating time to the required temperature is even if the same power consumption is used. Therefore, as shown in FIG. 7, the metal carrier 6 having a large capacity or the electrically heated metal carrier having a small capacity but performing effective electric heating with less power consumption is used.
The honeycomb body in 0 is divided into two, and a first metal carrier 61 having a capacity suitable for electric heating and a second metal carrier 62 forming a main metal carrier not including a heating portion are connected in series. It is disclosed in the above.
【００１０】[0010]
【発明が解決しようとする課題】上述した図７に示すメ
タル担体において、電気加熱式の第１のメタル担体に熱
応力緩和のための平板二重構造を採用し、さらに消費電
力を少なくするために軸方向の長さを小にした場合に
は、第１のメタル担体のハニカム構造が軸方向に不安定
となってテレスコーピングを起こし易くなるという欠点
がある。In the metal carrier shown in FIG. 7 described above, a flat plate double structure for relaxing thermal stress is adopted for the first electrically heated metal carrier to further reduce power consumption. If the axial length is reduced, the honeycomb structure of the first metal carrier becomes unstable in the axial direction, and telescoping is likely to occur.
【００１１】本発明の目的は、軸方向に分割されて直列
に配設されたメタル担体において、電気加熱式の第１の
メタル担体に平板二重構造を採用し、かつ軸方向長さを
５〜２０ｍｍ程度に極めて短くした場合でもテレスコー
ピングを生ぜず、したがって耐久性があり、かつ消費電
力の少ない電気加熱式触媒装置用メタル担体を提供する
ことにある。An object of the present invention is to employ a flat plate double structure for the electrically heated first metal carrier in the metal carrier which is divided in the axial direction and arranged in series, and has an axial length of 5 mm. It is an object of the present invention to provide a metal carrier for an electrically heated catalyst device which does not cause telescoping even when extremely shortened to about 20 mm, and therefore has durability and consumes less power.
【００１２】[0012]
【課題を解決するための手段】本発明の電気加熱式触媒
装置用メタル担体は、帯状をなす薄い金属板を折曲げて
連続的な波形の凹凸を形成した１枚の波板材と、平坦な
帯状をなす薄い金属板からなる複数枚の平板材とが相互
に当接して重なり合いロール上に巻かれて形成されて多
数の網目状通気路を備えたハニカム体をなし、また複数
枚の平板材の中の隣り合う２枚の間に、電気絶縁性被膜
層を有する絶縁用波板が接合されることなく配設され
て、ハニカム体のロール状に巻き回された層間を電気的
に絶縁し、さらにハニカム体の中心部に固設された棒状
の中心電極を有し、ハニカム体の外周部に中心電極と逆
性の外周電極を有する、巾の狭い第１のハニカム体と、
帯状をなす薄い金属板を折曲げて連続的な波形の凹凸を
形成した波板材と、平坦な帯状をなす薄い金属板からな
る平板材とが相互に当接して重なり合いロール状に巻か
れて形成されて多数の網目状通気路を備えたハニカム体
をなし、第１のハニカム体の下流に直列に間隔を置いて
配設された第２のハニカム体とを含む、電気加熱式触媒
装置用メタル担体において、第１のハニカム体の中心電
極の一方の端部が、第２のハニカム体の中心部に延びて
第２のハニカム体に固定されている。MEANS FOR SOLVING THE PROBLEMS The metal carrier for an electrically heated catalyst device of the present invention comprises a corrugated sheet material formed by bending a thin metal sheet in the form of a strip to form continuous corrugation, and a flat corrugated sheet material. A plurality of flat plate members made of thin metal plates in a belt shape are formed by being abutted against each other and overlapped and rolled on a roll to form a honeycomb body having a large number of mesh-like ventilation passages. An insulating corrugated sheet having an electrically insulating coating layer is provided between two adjacent sheets of the honeycomb structure without being joined to electrically insulate the rolled layers of the honeycomb body. A narrow first honeycomb body having a rod-shaped center electrode fixedly provided in the center of the honeycomb body and having a peripheral electrode opposite to the center electrode on the outer periphery of the honeycomb body,
Formed by winding a roll-shaped corrugated sheet material in which a strip-shaped thin metal plate is bent to form continuous corrugations and a flat strip-shaped flat metal sheet that abuts and abuts each other. Metal for an electrically heated catalyst device, which comprises a honeycomb body having a plurality of mesh-like ventilation passages, and includes a second honeycomb body which is arranged in series downstream of the first honeycomb body with a space therebetween. In the carrier, one end of the center electrode of the first honeycomb body extends to the center of the second honeycomb body and is fixed to the second honeycomb body.
【００１３】第１のハニカム体および第２のハニカム体
が、ぞれぞれ外周部を覆う外筒を有し、さらに二つのハ
ニカム体の間を電気的に絶縁するための、少なくとも一
方の外筒を覆う電気絶縁体を有することが好ましい。The first honeycomb body and the second honeycomb body each have an outer cylinder that covers the outer peripheral portion thereof, and further, at least one outer body for electrically insulating between the two honeycomb bodies. It is preferable to have an electrical insulator covering the tube.
【００１４】本発明の電気加熱式触媒装置用メタル担体
の製造方法は、帯状をなす薄い金属板を折曲げて連続的
な波形の凹凸を形成した１枚の波板材と、平坦な帯状を
なす薄い金属板からなる複数枚の平板材と、複数枚の平
板材の隣り合う２枚の間に、ろう材を介在させずに挿入
した電気絶縁性被膜層を有する絶縁用波板とを重ね合わ
せ、さらに、中心部に棒状の中心電極を挿入するための
孔部を備えるように、重ね合わせた板材をロール状に巻
き回して第１のハニカム体を形成し、また、帯状をなす
薄い金属板を折曲げて連続的な波形の凹凸を形成した波
板材と、平坦な帯状をなす薄い金属板からなる平板材と
を重ね合わせ、さらに、中心部に中心電極を挿入するた
めの第１のハニカム体の孔部と同径の孔部を備えるよう
に、重ね合わせた板材をロール状に巻き回して第２のハ
ニカム体を形成し、第１と第２のハニカム体をそれぞれ
の外筒に装入し、中心電極を第１のハニカム体の孔部に
挿入し、さらに、中心電極の端部を第２のハニカム体の
孔部に少なくとも５ｍｍ挿入して、第１のハニカム体と
第２のハニカム体とを所定の間隔に保持し、次に中心電
極と第１、第２のハニカム体とのろう付けおよび第１、
第２のハニカム体の所定のろう付けを行い、さらに、第
１のハニカム体に外周電極を設ける工程を含んでいる。In the method for producing a metal carrier for an electrically heated catalyst device of the present invention, a corrugated sheet material in which a strip-shaped thin metal plate is bent to form continuous corrugation and a flat strip shape is formed. A plurality of flat plate materials made of thin metal plates and an insulating corrugated plate having an electrically insulating coating layer inserted without interposing a brazing material between two adjacent flat plate materials Furthermore, the stacked plate materials are wound in a roll shape to form a first honeycomb body so that a hole portion for inserting a rod-shaped center electrode is provided in the center portion, and a strip-shaped thin metal plate. A first honeycomb for stacking a corrugated sheet material formed by bending and forming a continuous corrugated unevenness and a flat sheet material made of a flat strip-shaped thin metal plate, and further inserting a center electrode in the central portion thereof Stacked so that it has a hole with the same diameter as the body hole The material is wound into a roll to form a second honeycomb body, the first and second honeycomb bodies are loaded into respective outer cylinders, and the center electrode is inserted into the hole of the first honeycomb body, Further, the end portion of the center electrode is inserted into the hole portion of the second honeycomb body by at least 5 mm to hold the first honeycomb body and the second honeycomb body at a predetermined interval, and then the center electrode and the first honeycomb body. , Brazing with the second honeycomb body and the first,
The method includes performing a predetermined brazing of the second honeycomb body, and further providing a peripheral electrode on the first honeycomb body.
【００１５】本発明の第２の電気加熱式触媒装置用メタ
ル担体の製造方法は、帯状をなす薄い金属板を折曲げて
連続的な波形の凹凸を形成した１枚の波板材と、平坦な
帯状をなす薄い金属板からなる複数枚の平板材と、複数
枚の平板材の隣り合う２枚の間に、ろう材を介在させず
に挿入した電気絶縁性被膜層を有する絶縁用波板とを重
ね合わせて第１のハニカム体の板材とし、帯状をなす薄
い金属板を折曲げて連続的な波形の凹凸を形成した波板
材と、平坦な帯状をなす薄い金属板からなる平板材とを
重ね合わせて第２のハニカム体の板材とし、二つの板材
を所定の間隔に保って、板材の一端を棒状の中心電極に
巻付けて第１のハニカム体と第２のハニカム体を形成
し、第１と第２のハニカム体をそれぞれの外筒に装入
し、中心電極と第１、第２のハニカム体とのろう付けお
よび第１、第２のハニカム体の所定のろう付けを行い、
さらに第１のハニカム体に外周電極を設ける工程を含ん
でいる。A second method for producing a metal carrier for an electrically heated catalyst device according to the present invention is a corrugated sheet material in which a strip-shaped thin metal sheet is bent to form continuous corrugated irregularities, and a flat corrugated sheet material. A plurality of flat plate materials made of strip-shaped thin metal plates, and an insulating corrugated board having an electrically insulating coating layer inserted between two adjacent flat plate materials without interposing a brazing material Are stacked on each other to form a first honeycomb plate material, and a corrugated plate material in which a strip-shaped thin metal plate is bent to form a continuous corrugation and a flat plate material made of a flat strip-shaped thin metal plate. By stacking them to form a plate material of the second honeycomb body, keeping the two plate materials at a predetermined interval, and winding one end of the plate material around a rod-shaped center electrode to form a first honeycomb body and a second honeycomb body, The first and second honeycomb bodies were loaded into respective outer cylinders, and the center electrode and the first and second Brazing and first and honeycomb bodies 2, performs predetermined brazing second honeycomb body,
Further, the method includes a step of providing a peripheral electrode on the first honeycomb body.
【００１６】上述の第２の電気加熱式触媒装置用メタル
担体の製造方法の変形として、第１のハニカム体または
第２のハニカム体のいずれか一方を、中心電極に巻付け
て形成し、他方のハニカム体は、中心電極を挿入するた
めの孔部を備えるように巻き回して形成した後、中心電
極の一方の端部に挿入して形成することもできる。As a modification of the above-described second method for producing a metal carrier for an electrically heated catalyst device, either the first honeycomb body or the second honeycomb body is wound around the center electrode to form the other. It is also possible to form the honeycomb body by winding it so that it has a hole for inserting the center electrode, and then insert it into one end of the center electrode.
【００１７】上述の中心電極が中心軸を含む面で２分割
され、該分割面の間に板材の一端を挟んで巻芯を形成す
ることが好ましい。It is preferable that the above-mentioned center electrode is divided into two on a plane including the central axis, and one end of the plate material is sandwiched between the divided surfaces to form a winding core.
【００１８】第１のハニカム体および第２のハニカム体
の、少なくとも一方の外筒を電気絶縁体で覆って、両ハ
ニカム体の間を絶縁することが好適である。It is preferable that at least one outer cylinder of the first honeycomb body and the second honeycomb body is covered with an electric insulator to insulate the two honeycomb bodies from each other.
【００１９】[0019]
【作用】平板二重構造の２枚の平板材の間に、絶縁性被
膜層を有する波板を介在させて形成したロール状の第１
のハニカム体の中心電極が、第１のハニカム体の下流に
直列に配設された第２のハニカム体の中心部に固定され
るので、第１のハニカム体がテレスコーピングを起こす
ことはない。したがって、軸方向長さが５〜２０ｍｍ程
度の短い電気加熱式メタル担体を含む触媒装置用メタル
担体が得られる。A roll-shaped first plate formed by interposing a corrugated plate having an insulating coating layer between two flat plate members having a double plate structure.
Since the central electrode of the honeycomb body is fixed to the central portion of the second honeycomb body arranged in series downstream of the first honeycomb body, the first honeycomb body does not cause telescoping. Therefore, a metal carrier for a catalyst device including an electrically heated metal carrier having a short axial length of about 5 to 20 mm can be obtained.
【００２０】また、第１のハニカム体および第２のハニ
カム体の外筒の、少なくとも一方を電気絶縁体で覆うこ
とにより、二つのハニカム体の間が電気的に絶縁され
る。By covering at least one of the outer cylinders of the first honeycomb body and the second honeycomb body with an electric insulator, the two honeycomb bodies are electrically insulated from each other.
【００２１】[0021]
【実施例】次に本発明の実施例について図面を参照して
説明する。図１（Ａ）は本発明の電気加熱式触媒装置用
メタル担体の軸を含む断面略図、図１（Ｂ）は電気加熱
式の第１のハニカム体の軸に直角な板材の構成を示す模
式的断面略図である。Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 (A) is a schematic cross-sectional view including a shaft of a metal carrier for an electrically heated catalyst device of the present invention, and FIG. 1 (B) is a schematic view showing a configuration of a plate material perpendicular to the axis of an electrically heated first honeycomb body. FIG.
【００２２】図１（Ａ）において、電気加熱式触媒装置
用メタル担体１０は、電気加熱式の第１のハニカム体１
１と、第１のハニカム体１１の下流に同軸に所定の間隔
を置いて配設された第２のハニカム体１２とで構成され
ている。第１のハニカム体１１の中心部には、円形断面
をなす棒状の中心電極１３が固設されて、その一方の端
部が第２のハニカム体１２の中心部に向かって延びてい
る。ガス流に関して第１のハニカム体１１の下流には、
主要なメタル担体をなす第２のハニカム体１２が、第１
のハニカム体１１と同軸に、所定の間隔を隔てて配設さ
れている。In FIG. 1A, an electrically heated metal carrier 10 for a catalytic device is an electrically heated first honeycomb body 1.
1 and a second honeycomb body 12 coaxially arranged at a predetermined interval downstream of the first honeycomb body 11. A rod-shaped center electrode 13 having a circular cross section is fixedly provided in the center of the first honeycomb body 11, and one end of the center electrode 13 extends toward the center of the second honeycomb body 12. Downstream of the first honeycomb body 11 with respect to the gas flow,
The second honeycomb body 12 forming the main metal carrier is the first
Are disposed coaxially with the honeycomb body 11 at a predetermined interval.
【００２３】第１のハニカム体１１は、図１（Ｂ）し示
すように、帯状をなす薄い金属板を折曲げて連続的な波
形の凹凸を形成した１枚の波板材１と、平坦な帯状をな
す薄い金属板からなる２枚の平板材２1 ，２2 と、２枚
の平板材２1 ，２2 の間に挟まれ、帯状をなす薄い金属
板を折曲げて連続的な波形の凹凸を形成した電気絶縁性
被膜層を有する絶縁用波板３とが重ねられ、平板材２
1 ，２2 と絶縁用波板３との間は接合されることなく、
ロール状に巻かれて形成されている。第１のハニカム体
１１の中心部には、断面が円形で細長い棒状の中心電極
１３が配設されて波板材１および平板材２1 に接合され
ている。第１のハニカム体１１のロール状の各層は、絶
縁用波板３によって絶縁されているから、波板材１と平
板材２1 ，２2 のロールの外周部の端末に接合して外周
電極１４を設ければ、中心電極１３と外周電極１４との
間の板材はロール状の電気抵抗体を形成する。したがっ
て、中心電極１３と外周電極１４とをそれぞれ不図示の
電源に接続すれば、ハニカム体１１は電気加熱式メタル
担体となる。As shown in FIG. 1 (B), the first honeycomb body 11 is composed of a corrugated sheet material 1 formed by bending a thin metal sheet in a band shape to form a continuous corrugated surface and a flat corrugated sheet material 1. thin metal two flat material made of plate 2 1 forming the strip, and 2 2, sandwiched between two flat plate 2 1, 2 2, a continuous waveform of a thin metal plate forming the strip bent by And the corrugated board 3 for insulation having an electrically insulating coating layer on which unevenness of
Between 1 and 2 2 and the corrugated board 3 for insulation is not joined,
It is formed by being rolled up. At the center of the first honeycomb body 11, an elongated rod-shaped center electrode 13 having a circular cross section is disposed and joined to the corrugated plate material 1 and the flat plate material 2 1 . Since each roll-shaped layer of the first honeycomb body 11 is insulated by the insulating corrugated plate 3, the corrugated plate material 1 and the flat plate materials 2 1 and 2 2 are bonded to the ends of the outer peripheral portion of the roll to form the outer peripheral electrode 14 By providing, the plate material between the center electrode 13 and the outer peripheral electrode 14 forms a roll-shaped electric resistor. Therefore, by connecting the center electrode 13 and the outer peripheral electrode 14 to power sources (not shown), the honeycomb body 11 becomes an electrically heated metal carrier.
【００２４】第２のハニカム体１２は、第１のハニカム
体と同様に、波板材と平板材とを重ねてロール状に巻き
回して形成したハニカム体であるが、必ずしも平板二重
構造である必要はない。また、絶縁用波板は配設されな
いが、絶縁性を有しない波板を平板材の間に挟むことは
可能である。第２のハニカム体１２は主要な触媒装置用
メタル担体としての役目を果たすものであるから、第１
のハニカム体１１に比べ軸方向長さが長い。Like the first honeycomb body, the second honeycomb body 12 is a honeycomb body formed by stacking a corrugated sheet material and a flat sheet material and winding them in a roll shape, but is necessarily a flat plate double structure. No need. Further, although the insulating corrugated sheet is not provided, it is possible to sandwich the corrugated sheet having no insulating property between the flat plate members. Since the second honeycomb body 12 serves as a main metal carrier for a catalyst device,
The axial length is longer than that of the honeycomb body 11.
【００２５】第１のハニカム体１１の中心電極１３の一
方の端部は、第２のハニカム体１２の中心部分に向かっ
て延びており、第２のハニカム体１２の中心部の中に少
なくとも５ｍｍ挿入されてろう付けによって固定されて
いる。第２のハニカム体１２は、板材間がろう材によっ
て接合されているか、または平板二重構造の場合でも主
要メタル担体としてテレスコーピングを起こさない程度
の充分な軸方向長さを有するので、中心部に挿入された
中心電極１３の一方の端部を軸方向に保持することがで
きる。One end of the central electrode 13 of the first honeycomb body 11 extends toward the central portion of the second honeycomb body 12 and is at least 5 mm inside the central portion of the second honeycomb body 12. It is inserted and fixed by brazing. The second honeycomb body 12 has a sufficient axial length that does not cause telescoping as a main metal carrier even if the plate materials are joined by a brazing material or has a flat plate double structure. It is possible to hold one end of the center electrode 13 inserted in the axial direction.
【００２６】したがって、第１のハニカム体１１の中心
部分は、第２のハニカム体１２によって軸方向に保持さ
れた中心電極１３によって軸方向に保持されることとな
るので、軸方向に固定されたのと同様の効果があり、テ
レスコーピングの発生を防いでメタル担体の耐久性が向
上する。Therefore, since the central portion of the first honeycomb body 11 is axially held by the central electrode 13 which is axially held by the second honeycomb body 12, it is fixed in the axial direction. It has the same effect as the above, prevents the occurrence of telescoping, and improves the durability of the metal carrier.
【００２７】故に、第１のハニカム体１１の軸方向寸法
を極端に短く設計することが可能となるので、同じ消費
電力に対して加熱時間を短縮することができ、また同一
加熱時間に対しては消費電力を少なくすることが可能と
なる。一例として、従来の技術においては製造困難であ
った軸方向長さが５ｍｍ〜２０ｍｍ、消費電力が１００
ワット〜３００ワットの電気加熱式メタル担体が本発明
によって製造可能となった。Therefore, since the axial dimension of the first honeycomb body 11 can be designed to be extremely short, it is possible to shorten the heating time for the same power consumption and for the same heating time. Makes it possible to reduce power consumption. As an example, the axial length was 5 mm to 20 mm and the power consumption was 100, which was difficult to manufacture in the conventional technique.
Electrically heated metal carriers of watts to 300 watts have been made possible by the present invention.
【００２８】図２は、本発明による電気加熱式触媒装置
用メタル担体の、第１のハニカム体に使用される中心電
極の種々の形式の実施例を示す、軸を含む断面の略図で
ある。図２（Ａ）は、中心電極１３1 が第２のハニカム
体１２の軸方向長さ一杯に延びる図であり、図２（Ｂ）
は、中心電極１３2 が第１のハニカム体１の全巾より短
く、第２のハニカム体１２の全巾より長く配設された図
であり、図２（Ｃ）は、中心電極１３3 が両ハニカム体
の全巾より短く配設された図である。いずれの場合にお
いても、中心電極１３はハニカム体１１，１２の中心部
に対し軸方向に少なくとも５ｍｍ挿入されて接合される
ことが必要である。FIG. 2 is a schematic view of a cross section including a shaft showing various embodiments of the center electrode used in the first honeycomb body of the metal carrier for an electrically heated catalyst device according to the present invention. FIG. 2 (A) is a diagram in which the center electrode 13 1 extends the full length in the axial direction of the second honeycomb body 12, and FIG.
Is shorter than the full width of the center electrode 13 2 is first honeycomb body 1 is a diagram that is longer disposed than the total width of the second honeycomb body 12, FIG. 2 (C), the center electrode 13 3 It is the figure which was arranged shorter than the full width of both honeycomb bodies. In any case, the center electrode 13 needs to be inserted into the central portions of the honeycomb bodies 11 and 12 by at least 5 mm in the axial direction and bonded.
【００２９】図３は、図１に示す本発明による電気加熱
式の第１のハニカム体１１と、主要担体としての第２の
ハニカム体１２との間を電気的に絶縁するための種々の
方法を示す断面の略図である。ハニカム体１１，１２に
はそれぞれの外周部を覆う外筒５，６が設けられ、両方
の外筒またはいずれか一方の外筒の外側を電気絶縁体で
覆っている。FIG. 3 shows various methods for electrically insulating the electrically heated first honeycomb body 11 according to the present invention shown in FIG. 1 from the second honeycomb body 12 as a main carrier. 2 is a schematic view of a cross section showing Outer cylinders 5 and 6 are provided on the honeycomb bodies 11 and 12 so as to cover the outer peripheral portions thereof, and both outer cylinders or one of the outer cylinders is covered with an electric insulator.
【００３０】図３（Ａ）に示す実施例は、第１のハニカ
ム体１１および第２のハニカム体１２の外筒５，６が所
定の間隔を隔てて、一体の電気絶縁体１５a で覆われて
絶縁され、さらに一体の円筒１６の中に装入されてい
る。図３（Ｂ）では、第１のハニカム体１１のみが電気
絶縁体１５b によって覆われている。この場合には外周
電極１４を円筒１６と絶縁する必要がある。図３（Ｃ）
では、第１のハニカム体１１が電気絶縁体１５b で覆わ
れ、これを覆う円筒１６a と第２のハニカム体１２の外
筒６とが接続筒１６b によって接続されている。この場
合も外周電極１４を円筒１６a と絶縁する必要がある。
図３（Ｄ）は、第２のハニカム体１２のみを電気絶縁体
１５c で絶縁し、これを覆う円筒１６c と第１のハニカ
ム体１１の外筒５とが接続筒１６d によって接続されて
いる。The embodiment shown in FIG. 3 (A), the first honeycomb body 11 and the second outer cylinder 5 and 6 of the honeycomb body 12 at predetermined intervals, covered with integral electrical insulator 15 a It is insulated and insulated, and is further inserted into the integral cylinder 16. In FIG. 3 (B), only the first honeycomb body 11 is covered by an electrical insulator 15 b. In this case, the outer peripheral electrode 14 needs to be insulated from the cylinder 16. Figure 3 (C)
In the above, the first honeycomb body 11 is covered with the electric insulator 15 b , and the cylinder 16 a covering this is connected to the outer cylinder 6 of the second honeycomb body 12 by the connection cylinder 16 b . In this case it is necessary to insulate the peripheral electrode 14 and the cylinder 16 a.
In FIG. 3 (D), only the second honeycomb body 12 is insulated by the electric insulator 15 c , and the cylinder 16 c covering the second honeycomb body 12 and the outer cylinder 5 of the first honeycomb body 11 are connected by the connection cylinder 16 d . ing.
【００３１】上述したように、第１のハニカム体１１と
第２のハニカム体１２とは、電気絶縁体１５a ，１５
b ，１５c によってそれぞれ電気的に絶縁され、かつ円
筒１６、接続筒１６b ，１６d によってそれぞれ所定の
間隔を保って保持されている。したがって、中心電極１
３の一方の端部が第２のハニカム体１２の中心部に固定
されれば、第１のハニカム体１１の中心部分も中心電極
１３によって軸方向の動きが固定されるので、第１のハ
ニカム体１１にテレスコーピングを生じることを防止で
きる。As described above, the first honeycomb body 11 and the second honeycomb body 12 are composed of the electric insulators 15a and 15a.
They are electrically insulated from each other by b and 15 c , and are held at predetermined intervals by the cylinder 16 and the connecting tubes 16 b and 16 d . Therefore, the center electrode 1
If one end of No. 3 is fixed to the center of the second honeycomb body 12, the center electrode 13 also fixes the axial movement of the center of the first honeycomb body 11. It is possible to prevent telescoping on the body 11.
【００３２】次に本発明の電気加熱式触媒装置用メタル
担体の製造方法を述べる。図４（Ａ）は、電気加熱式の
第１のハニカム体１１と、主要なメタル担体をなす電気
加熱式でない第２のハニカム体１２とが、それぞれ別個
に形成された場合を示す斜視図である。Next, a method for producing the metal carrier for an electrically heated catalyst device of the present invention will be described. FIG. 4 (A) is a perspective view showing a case where an electrically heated first honeycomb body 11 and a non-electrically heated second honeycomb body 12 forming a main metal carrier are separately formed. is there.
【００３３】第１のハニカム体１１は、図１（Ｂ）に示
すような１枚の波板材１と、２枚の平板材２1 ，２2
と、平板材２1 ，２2 の間に挟まれた電気絶縁性被膜層
を有する絶縁用波板３とを重ね合わせて、ロール状に巻
き回して形成する。この際中心部分には、中心電極１３
が挿入される孔部１１a を設ける。また平板材２1 ，２
2 と絶縁用波板３との間にはろう材を施さない。The first honeycomb body 11 is shown in FIG. 1 (B).
One corrugated sheet material 1 and two flat sheet materials 21 , 22
And flat plate material 21 , 22 Electrically insulating coating layer sandwiched between
The corrugated board 3 for insulation is superposed and wound into a roll.
Form by turning. At this time, the central electrode 13
Hole 11 into which is inserteda To provide. Flat plate material 21 , 2
2 No brazing material is applied between the insulating corrugated sheet 3 and the insulating corrugated sheet 3.
【００３４】第２のハニカム体１２は、波板材と平板材
とを重ね合わせ、その間に所定のろう材を挿入してロー
ル状に巻き回して形成する。その際第１のハニカム体１
１と同様に、中心部分に電極１３が挿入される孔部１２
a を設ける。The second honeycomb body 12 is formed by stacking a corrugated plate material and a flat plate material, inserting a predetermined brazing material therebetween, and winding them in a roll shape. At that time, the first honeycomb body 1
As in the case of 1, the hole 12 into which the electrode 13 is inserted in the central portion
providing a a.
【００３５】次に第１と第２のハニカム体をそれぞれ外
筒５，６に装入した後、第１のハニカム体１１の孔部１
１a の中に中心電極１３を挿入し、さらに中心電極１３
の一方の端部を第２のハニカム体１２の孔部１２a の中
に少なくとも５ｍｍ挿入して、第１のハニカム体１１と
第２のハニカム体１２との間隔を所定の間隔に保持す
る。Next, after loading the first and second honeycomb bodies into the outer cylinders 5 and 6, respectively, the hole portion 1 of the first honeycomb body 11 is inserted.
The center electrode 13 is inserted into the 1 a, further the center electrode 13
One end is inserted into the hole 12 a of the second honeycomb body 12 by at least 5 mm to keep the distance between the first honeycomb body 11 and the second honeycomb body 12 at a predetermined distance.
【００３６】次に両ハニカム体を炉内で加熱して、中心
電極１３と第１、第２のハニカム体をろう付けするとと
もに、第１、第２のハニカム体１１，１２の各々のろう
付けを行う。Next, both honeycomb bodies are heated in a furnace to braze the center electrode 13 to the first and second honeycomb bodies, and to braze each of the first and second honeycomb bodies 11 and 12. I do.
【００３７】次に第１のハニカム体１１の外周部の波板
材１と平板材２1 ，２2 の端末に外周電極１４を設けれ
ば、図４（Ｂ）に示すような電気加熱式触媒装置用メタ
ル担体１０が得られる。Next, if the outer peripheral electrodes 14 are provided at the ends of the corrugated plate material 1 and the flat plate materials 2 1 and 2 2 on the outer peripheral portion of the first honeycomb body 11, an electrically heated catalyst as shown in FIG. The metal carrier 10 for the device is obtained.
【００３８】中心電極１３の長さと第１、第２のメタル
担体１１，１２との関係位置は、図２の断面図に示すよ
うに種々に変更することができる。The relationship between the length of the center electrode 13 and the first and second metal carriers 11 and 12 can be variously changed as shown in the sectional view of FIG.
【００３９】第１のハニカム体１１と第２のハニカム体
１２の間を電気的に絶縁するために、外筒５または６の
少なくとも一方の外側を電気絶縁体で覆う。図５に示す
実施例では、第１と第２のハニカム体１１，１２の外筒
５，６の外側を一体の電気絶縁体１５a で覆い、さらに
その外側を一体の円筒１６で覆っている。In order to electrically insulate between the first honeycomb body 11 and the second honeycomb body 12, at least one of the outer cylinders 5 or 6 is covered with an electrical insulator. In the embodiment shown in FIG. 5, the outer casings 5 and 6 of the first and second honeycomb bodies 11 and 12 are covered with an integral electric insulator 15 a , and the outer casing is covered with an integral cylinder 16. .
【００４０】上述の方法によって、第１のハニカム体と
第２のハニカム体とは互いに電気的に絶縁され、かつ所
定の間隔に保持されるので、中心電極の一方の端部が第
２のハニカム体の中心部に固定されれば、第１のハニカ
ム体の中心部分も中心電極によって軸方向に固定され、
したがって第１のハニカム体にテレスコーピングを生じ
ることを防止することができる。According to the method described above, the first honeycomb body and the second honeycomb body are electrically insulated from each other and held at a predetermined interval, so that one end of the center electrode has the second honeycomb body. If fixed to the central part of the body, the central part of the first honeycomb body is also fixed axially by the central electrode,
Therefore, it is possible to prevent telescoping from occurring in the first honeycomb body.
【００４１】図６は、本発明の第２の電気式触媒装置用
メタル担体の製造方法を示す斜視略図である。絶縁用波
板を含む第１のハニカム体用の板材２１と、主要メタル
担体を形成する第２のハニカム体用の板材２２とを所定
の間隔に隔てて並べ、板材の一方の端部に中心電極１３
a を配設して両板材の端部を巻き付け、中心電極１３ a
によって板材２１，２２を同時に巻き取って第１および
第２のハニカム体を形成する。第１、第２のハニカム体
をそれぞれ別の外筒に装入した後所定のろう付けを行
い、外周電極を設ければ電気式触媒装置用メタル担体が
得られる。FIG. 6 shows a second electrocatalyst device of the present invention.
6 is a schematic perspective view showing a method for manufacturing a metal carrier. Insulation wave
A plate material 21 for a first honeycomb body including a plate, and a main metal
A second plate member 22 for a honeycomb body forming a carrier is predetermined
And the center electrode 13 on one end of the plate material.
a And the end portions of both plate materials are wound around the center electrode 13 a
The plate materials 21 and 22 are simultaneously wound by the first and
A second honeycomb body is formed. First and second honeycomb bodies
After placing each into a different outer cylinder, perform the prescribed brazing.
If an outer electrode is provided, a metal carrier for an electrocatalyst device
can get.
【００４２】中心電極１３a は、電極の中心軸を含む面
で２分割されていると板材２１，２２の一方の端部を巻
き付けるのに好都合である。The center electrode 13 a is advantageous to wind the one end portion of the being divided into two by a plane including the central axis of the electrode plate 21.
【００４３】上述の第２の製造方法においては、第１、
第２のハニカム体をそれぞれ別の外筒に装入したが、共
通の一個の外筒に装入した後その外筒を分割してもよ
い。In the second manufacturing method described above, the first,
Although the second honeycomb bodies are charged in different outer cylinders, respectively, the outer cylinders may be divided after being charged in one common outer cylinder.
【００４４】さらに図６の実施例において、中心電極１
３a によって第１、第２のハニカム体の板材のいずれか
一方の板材のみを巻き付けて１個のハニカム体を形成
し、別に中心電極１３a を用いずに形成した他方の板材
によるハニカム体を、中心電極１３a に挿入してメタル
担体を形成することもできる。Further, in the embodiment of FIG. 6, the center electrode 1
By 3 a first, wound only one sheet or plate material of the second honeycomb body to form a single honeycomb body, the honeycomb body by the other plate material which is formed without using a separate center electrode 13 a a , it is also possible to form a metal carrier by inserting the center electrode 13 a.
【００４５】[0045]
【発明の効果】以上説明したように本発明は、平板二重
構造を有するハニカム体の２枚の平板材の間に絶縁用波
板を接合することなく配設して巻き回して第１のハニカ
ム体を形成し、その下流に直列に主要な担体をなす第２
のハニカム体を配設し、両ハニカム体の中心部を棒状の
中心電極で互いに固定したため、第１のハニカム体がテ
レスコーピングを生じることなく軸方向長さを５〜２０
ｍｍに短縮することができるため、消費電力が１００〜
３００ワットと極めて少なくかつ耐久性の向上した電気
加熱式触媒装置用メタル担体が得られるという効果があ
る。As described above, according to the present invention, the insulating corrugated plate is disposed between the two flat plate members of the honeycomb body having the flat plate double structure without being joined, and the first corrugated plate is wound. The second which forms the honeycomb body and forms the main carrier in series downstream thereof
Since the honeycomb bodies of No. 1 are arranged and the central portions of both the honeycomb bodies are fixed to each other by the rod-shaped center electrode, the first honeycomb body has an axial length of 5 to 20 without telescoping.
Since it can be shortened to mm, power consumption is 100-
There is an effect that it is possible to obtain a metal carrier for an electrically heated catalyst device having an extremely low durability of 300 watts and improved durability.
【図１】本発明の電気加熱式触媒装置用メタル担体の断
面略図で、図１（Ａ）は軸を含む縦断面図、図１（Ｂ）
は電気加熱式の第１のハニカム体の板材の構成を示す模
式的断面略図である。1 is a schematic sectional view of a metal carrier for an electrically heated catalyst device of the present invention, FIG. 1 (A) is a vertical sectional view including a shaft, and FIG. 1 (B).
[Fig. 3] is a schematic cross-sectional schematic view showing a configuration of a plate material of an electrically heated first honeycomb body.
【図２】図１のメタル担体の中心電極の種々の形式を示
す断面略図である。2 is a schematic cross-sectional view showing various types of center electrodes of the metal carrier of FIG. 1. FIG.
【図３】図１に示す第１と第２のハニカム体の間を電気
的に絶縁する種々の方法および円筒と接続筒の形式を示
す断面略図である。FIG. 3 is a schematic cross-sectional view showing various methods of electrically insulating between the first and second honeycomb bodies shown in FIG. 1 and the forms of the cylinder and the connecting cylinder.
【図４】本発明による電気加熱式触媒装置用メタル担体
の製造方法を示す説明図であって、図４（Ａ）は斜視
図、図４（Ｂ）は軸を含む断面略図である。4A and 4B are explanatory views showing a method for producing a metal carrier for an electrically heated catalyst device according to the present invention, FIG. 4A is a perspective view, and FIG. 4B is a schematic sectional view including a shaft.
【図５】図４のメタル担体を電気絶縁体と円筒で覆った
断面略図である。5 is a schematic cross-sectional view of the metal carrier of FIG. 4 covered with an electrical insulator and a cylinder.
【図６】本発明による第２の電気加熱式触媒装置用メタ
ル担体の製造方法を示す斜視図である。FIG. 6 is a perspective view showing a second method for producing a metal carrier for an electrically heated catalyst device according to the present invention.
【図７】従来の技術による電気加熱式触媒装置用メタル
担体の軸を含む断面略図である。FIG. 7 is a schematic cross-sectional view including a shaft of a metal carrier for an electrically heated catalyst device according to a conventional technique.
１ 波板材 ２1 ，２2 平板材 ３ 絶縁用波板 ５，６ 外筒 １０ 電気加熱式触媒装置用メタル担体 １１ 第１のハニカム体 １１a ，１２a 孔部 １２ 第２のハニカム体 １３，１３1 ，１３2 ，１３3 ，１３a 中心電極 １４ 外周電極 １５a ，１５b １５c 電気絶縁体 １６，１６a ，１６c 円筒 １６b ，１６d 接続筒 ２１ 第１のハニカム体の板材 ２２ 第２のハニカム体の板材 ６０ 電気加熱式メタル担体 ６１ 第１のメタル担体 ６２ 第２のメタル担体DESCRIPTION OF SYMBOLS 1 Corrugated sheet material 2 1 , 2 2 Flat plate material 3 Insulating corrugated sheet 5,6 Outer cylinder 10 Metal carrier for electrically heated catalyst device 11 First honeycomb body 11 a , 12 a Hole 12 Second honeycomb body 13, 13 1 , 13 2 , 13 3 , 13 a Center electrode 14 Peripheral electrode 15 a , 15 b 15 c Electrical insulator 16, 16 a , 16 c Cylinder 16 b , 16 d Connection tube 21 First honeycomb plate material 22 Second honeycomb plate 60 Electric heating type metal carrier 61 First metal carrier 62 Second metal carrier
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｆ０１Ｎ 3/20 Ｂ０１Ｄ 53/36 ＺＡＢＣ Ｂ２１Ｄ 47/00 Ｃ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location F01N 3/20 B01D 53/36 ZABC B21D 47/00 C
Claims (7)
な波形の凹凸を形成した１枚の波板材と、平坦な帯状を
なす薄い金属板からなる複数枚の平板材とが相互に当接
して重なり合いロール状に巻かれて形成されて多数の網
目状通気路を備えたハニカム体をなし、また前記複数枚
の平板材の中の隣り合う２枚の間に、電気絶縁性被膜層
を有する絶縁用波板が接合されることなく配設されて、
前記ハニカム体のロール状に巻き回された層間を電気的
に絶縁し、さらに前記ハニカム体の中心部に固設された
棒状の中心電極を有し、前記ハニカム体の外周部に前記
中心電極と逆性の外周電極を有する、巾の狭い第１のハ
ニカム体と、 帯状をなす薄い金属板を折曲げて連続的な波形の凹凸を
形成した波板材と、平坦な帯状をなす薄い金属板からな
る平板材とが相互に当接して重なり合いロール状に巻か
れて形成されて多数の網目状通気路を備えたハニカム体
をなし、前記第１のハニカム体の下流に直列に間隔を置
いて配設された第２のハニカム体とを含む、電気加熱式
触媒装置用メタル担体において、 前記第１のハニカム体の前記中心電極の一方の端部が、
前記第２のハニカム体の中心部に延びて該第２のハニカ
ム体に固定されることを特徴とする、電気加熱式触媒装
置用メタル担体。1. A single corrugated sheet material in which a strip-shaped thin metal plate is bent to form continuous corrugated irregularities, and a plurality of flat sheet materials made of flat strip-shaped thin metal plates are mutually disposed. A honeycomb body having a number of mesh-like air passages formed by abutting and overlapping and being wound in a roll shape is formed, and an electrically insulating coating layer is formed between two adjacent flat sheets. Insulating corrugated sheet having is arranged without being joined,
Electrically insulating the layers wound in a roll shape of the honeycomb body, further having a rod-shaped central electrode fixedly provided in the central portion of the honeycomb body, and the central electrode in the outer peripheral portion of the honeycomb body. From a narrow first honeycomb body having an inverted outer peripheral electrode, a corrugated sheet material in which a strip-shaped thin metal plate is bent to form continuous corrugations, and a flat strip-shaped thin metal plate. And a flat plate material that are in contact with each other and are overlapped with each other and wound into a roll shape to form a honeycomb body having a large number of mesh-like ventilation passages, and are arranged in series downstream of the first honeycomb body at intervals. A metal carrier for an electrically heated catalyst device, comprising: a second honeycomb body provided, wherein one end of the center electrode of the first honeycomb body is
A metal carrier for an electrically heated catalyst device, which extends to the center of the second honeycomb body and is fixed to the second honeycomb body.
ハニカム体が、それぞれ外周部を覆う外筒を有し、さら
に前記二つのハニカム体の間を電気的に絶縁するため
の、前記外筒の少なくとも一方を覆う電気絶縁体を有す
る、請求項１に記載の電気加熱式触媒装置用メタル担
体。2. The first honeycomb body and the second honeycomb body each have an outer cylinder that covers an outer peripheral portion thereof, and further, the outer shell for electrically insulating between the two honeycomb bodies. The metal carrier for an electrically heated catalyst device according to claim 1, further comprising an electric insulator that covers at least one of the cylinders.
な波形の凹凸を形成した１枚の波板材と、平坦な帯状を
なす薄い金属板からなる複数枚の平板材と、該複数枚の
平板材の隣り合う２枚の間に、ろう材を介在させずに挿
入した電気絶縁性被膜層を有する絶縁用波板とを重ね合
わせ、さらに、 中心部に棒状の中心電極を挿入するための孔部を備える
ように、前記重ね合わせた板材をロール状に巻き回して
第１のハニカム体を形成し、また、 帯状をなす薄い金属板を折曲げて連続的な波形の凹凸を
形成した波板材と、平坦な帯状をなす薄い金属板からな
る平板材とを重ね合わせ、さらに、中心部に前記中心電
極を挿入するための第１のハニカム体の前記孔部と同径
の孔部を備えるように、前記重ね合わせた板材をロール
状に巻き回して第２のハニカム体を形成し、 前記第１と第２のハニカム体をそれぞれの外筒に装入
し、 前記中心電極を前記第１のハニカム体の前記孔部に挿入
し、さらに、 該中心電極の端部を前記第２のハニカム体の前記孔部に
少なくとも５ｍｍ挿入して、前記第１のハニカム体と前
記第２のハニカム体とを所定の間隔に保持し、 前記中心電極と前記第１、第２のハニカム体とのろう付
けおよび前記第１、第２のハニカム体の所定のろう付け
を行い、 前記第１のハニカム体に外周電極を設ける工程を含む、 電気加熱式触媒装置用メタル担体の製造方法。3. A single corrugated sheet material in which a strip-shaped thin metal plate is bent to form a continuous corrugation, and a plurality of flat plate materials made of a flat strip-shaped thin metal plate, and the plurality of flat sheet materials. Between two adjacent flat plate materials, an insulating corrugated plate having an electrically insulating coating layer inserted without interposing a brazing material is overlaid, and a rod-shaped center electrode is inserted in the central portion. To form the first honeycomb body, and the thin metal plate in the shape of a band is bent to form continuous corrugations. The corrugated plate material and a flat plate material made of a thin metal plate having a flat band shape are overlapped with each other, and a hole portion having the same diameter as the hole portion of the first honeycomb body for inserting the center electrode into the center portion The stacked plate materials are wound into a roll so that the second A nicam body is formed, the first and second honeycomb bodies are inserted into respective outer cylinders, the center electrode is inserted into the hole of the first honeycomb body, and the end of the center electrode is further inserted. Part is inserted into the hole part of the second honeycomb body by at least 5 mm to hold the first honeycomb body and the second honeycomb body at a predetermined interval, and the center electrode and the first and the second honeycomb bodies. Of a metal carrier for an electrically heated catalyst device, which comprises a step of brazing the second honeycomb body and a predetermined brazing of the first and second honeycomb bodies, and providing an outer peripheral electrode on the first honeycomb body. Production method.
な波形の凹凸を形成した１枚の波板材と、平坦な帯状を
なす薄い金属板からなる複数枚の平板材と、該複数枚の
平板材の隣り合う２枚の間に、ろう材を介在させずに挿
入した電気絶縁性被膜層を有する絶縁用波板とを重ね合
わせて第１のハニカム体の板材とし、 帯状をなす薄い金属板を折曲げて連続的な波形の凹凸を
形成した波板材と、平坦な帯状をなす薄い金属板からな
る平板材とを重ね合わせて第２のハニカム体の板材と
し、 前記二つの板材を所定の間隔に保って、該板材の一端を
棒状の中心電極に巻付けて第１のハニカム体と第２のハ
ニカム体を形成し、 該第１と第２のハニカム体をそれぞれの外筒に装入し、 前記中心電極と前記第１、第２のハニカム体とのろう付
けおよび前記第１、第２のハニカム体の所定のろう付け
を行い、 前記第１のハニカム体に外周電極を設ける工程を含む、 電気加熱式触媒装置用メタル担体の製造方法。4. A single corrugated sheet material in which a strip-shaped thin metal plate is bent to form continuous corrugated irregularities, and a plurality of flat plate materials made of a flat strip-shaped thin metal plate, and the plurality of flat sheet materials. A first honeycomb plate member is formed by stacking an insulating corrugated plate having an electrically insulating coating layer inserted without a brazing filler metal between two adjacent flat plate members to form a plate member for the first honeycomb body. A corrugated sheet material in which a thin metal plate is bent to form continuous corrugated irregularities and a flat plate material made of a thin metal sheet having a flat band shape are stacked to form a second honeycomb body plate material, and the two plate materials At a predetermined interval, one end of the plate material is wound around a rod-shaped center electrode to form a first honeycomb body and a second honeycomb body, and the first and second honeycomb bodies are respectively provided with outer cylinders. And brazing the center electrode with the first and second honeycomb bodies and First, performs predetermined brazing second honeycomb body, comprising said first honeycomb body provided peripheral electrode process, a manufacturing method of the metal carrier for the electrically heated catalyst device.
ハニカム体のいずれか一方を、前記中心電極に巻付けて
形成し、 他方のハニカム体は、前記中心電極を挿入するための孔
部を備えるように巻き回して形成した後、前記中心電極
の一方の端部に挿入して形成する、請求項４に記載の電
気加熱式触媒装置用メタル担体の製造方法。5. The first honeycomb body or the second honeycomb body is wound around the center electrode to be formed, and the other honeycomb body has a hole for inserting the center electrode. 5. The method for producing a metal carrier for an electrically heated catalyst device according to claim 4, wherein the metal carrier for an electrically heated catalyst device is formed by winding the metal carrier so that the metal carrier for an electrically heated catalyst device is formed by inserting it into one end of the center electrode.
され、該分割面の間に前記板材の一端を挟んで巻芯を形
成する、請求項４または５に記載の電気加熱式触媒装置
用メタル担体の製造方法。6. The electrically heated catalyst according to claim 4, wherein the center electrode is divided into two parts on a plane including a center axis, and one end of the plate material is sandwiched between the divided surfaces to form a winding core. Method for manufacturing metal carrier for device.
カム体の外筒の、少なくとも一方を電気絶縁体で覆う、
請求項４または５に記載の電気加熱式触媒装置用メタル
担体の製造方法。7. At least one of outer cylinders of the first honeycomb body and the second honeycomb body is covered with an electric insulator.
The method for producing a metal carrier for an electrically heated catalyst device according to claim 4 or 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07154695A JP3464557B2 (en) | 1995-03-29 | 1995-03-29 | Metal carrier for electrically heated catalyst device and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07154695A JP3464557B2 (en) | 1995-03-29 | 1995-03-29 | Metal carrier for electrically heated catalyst device and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08266909A true JPH08266909A (en) | 1996-10-15 |
| JP3464557B2 JP3464557B2 (en) | 2003-11-10 |
Family
ID=13463853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07154695A Expired - Fee Related JP3464557B2 (en) | 1995-03-29 | 1995-03-29 | Metal carrier for electrically heated catalyst device and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3464557B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000254620A (en) * | 1999-03-12 | 2000-09-19 | Matsushita Electric Ind Co Ltd | Crude refuse treating machine |
| WO2012014317A1 (en) * | 2010-07-30 | 2012-02-02 | トヨタ自動車株式会社 | Electrically-heated catalyst |
| WO2012111071A1 (en) * | 2011-02-14 | 2012-08-23 | トヨタ自動車株式会社 | Electrically heated catalyst |
| WO2012120669A1 (en) * | 2011-03-09 | 2012-09-13 | トヨタ自動車株式会社 | Electrically heated catalyst |
-
1995
- 1995-03-29 JP JP07154695A patent/JP3464557B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000254620A (en) * | 1999-03-12 | 2000-09-19 | Matsushita Electric Ind Co Ltd | Crude refuse treating machine |
| WO2012014317A1 (en) * | 2010-07-30 | 2012-02-02 | トヨタ自動車株式会社 | Electrically-heated catalyst |
| JP5472468B2 (en) * | 2010-07-30 | 2014-04-16 | トヨタ自動車株式会社 | Electric heating catalyst |
| WO2012111071A1 (en) * | 2011-02-14 | 2012-08-23 | トヨタ自動車株式会社 | Electrically heated catalyst |
| CN103328076A (en) * | 2011-02-14 | 2013-09-25 | 丰田自动车株式会社 | Electrically heated catalyst |
| WO2012120669A1 (en) * | 2011-03-09 | 2012-09-13 | トヨタ自動車株式会社 | Electrically heated catalyst |
| US8763379B2 (en) | 2011-03-09 | 2014-07-01 | Toyota Jidosha Kabushiki Kaisha | Electrically heated catalyst |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3464557B2 (en) | 2003-11-10 |
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