JPH05212897A - Electrostatic recording head - Google Patents
Electrostatic recording headInfo
- Publication number
- JPH05212897A JPH05212897A JP5883091A JP5883091A JPH05212897A JP H05212897 A JPH05212897 A JP H05212897A JP 5883091 A JP5883091 A JP 5883091A JP 5883091 A JP5883091 A JP 5883091A JP H05212897 A JPH05212897 A JP H05212897A
- Authority
- JP
- Japan
- Prior art keywords
- discharge
- recording head
- electrostatic recording
- terminal
- discharge member
- 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.)
- Withdrawn
Links
Landscapes
- Dot-Matrix Printers And Others (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Electrophotography Using Other Than Carlson'S Method (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、放電技術の分野におい
て利用され、例えば電子写真方式のプリンターの被帯電
体表面に画像信号に応じた静電潜像を直接形成する静電
記録ヘッドに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrostatic recording head which is used in the field of discharge technology and which directly forms an electrostatic latent image according to an image signal on the surface of a charged body of an electrophotographic printer.
【0002】[0002]
【従来の技術】この種の静電記録ヘッドとしては、誘電
体を挟んでマトリックス状に設けられた誘電電極と放電
電極との間に交流またはパルス電圧を印加し、放電電極
のマトリックス交点部に形成した孔よりイオン流を放射
し、更に放電電極上に絶縁体層を介して配設した制御電
極にバイアス電圧を印加し、この放射イオン流の被帯電
体へのイオン量の制御を行うものが知られている(特開
昭54−78134、特開昭61−281254)。2. Description of the Related Art As an electrostatic recording head of this type, an alternating current or a pulse voltage is applied between a dielectric electrode and a discharge electrode arranged in a matrix with a dielectric material sandwiched between the discharge electrode and the matrix electrode. Ion flow is radiated from the formed hole, and a bias voltage is applied to the control electrode placed on the discharge electrode via an insulator layer to control the ion amount of this radiated ion flow to the charged body. Are known (JP-A-54-78134 and JP-A-61-281254).
【0003】この方式の静電記録ヘッドにおいて、放電
電極と誘電電極とからなる放電部材と、これを駆動する
電源部との接続のために、カードエッジコネクター、ピ
ン端子、スプリングコンタクトピン等の接続部材で、放
電部材及び電源部のそれぞれに形成された接続用端子部
間を電気的に接続するものが知られている。(特開昭6
3−137859)。In this type of electrostatic recording head, a card edge connector, a pin terminal, a spring contact pin, etc. are connected in order to connect a discharge member composed of a discharge electrode and a dielectric electrode and a power source section for driving the discharge member. It is known that a member electrically connects the connection terminal portions formed on the discharge member and the power source portion. (JP-A-6
3-137859).
【0004】[0004]
【発明が解決しようとする課題】しかしながら、この従
来の技術においては、放電部材が薄葉状部材の複合積層
体であること、また電源部との接続のための端子部が、
放電部材と同一の部材または実質的に一体の部材として
形成されていることにより以下の欠点がある。However, in this prior art, the discharge member is a composite laminate of thin leaf members, and the terminal portion for connection with the power supply portion is
Forming the same member as the discharge member or a substantially integral member has the following drawbacks.
【0005】1.ピン端子やスプリングコンタクトピン
を接続部材として用いる場合、これらを配設するための
接続部の領域を放電部材の端部に設ける必要があり、平
板状の放電部材にあっては静電記録ヘッドの大型化を招
き、プリンター等の画像形成装置の小型化を阻害する。1. When using a pin terminal or a spring contact pin as a connecting member, it is necessary to provide a region of a connecting portion for disposing these at the end of the discharge member. This leads to an increase in size and hinders the downsizing of image forming apparatuses such as printers.
【0006】2.大型化を避けるため等によりカードエ
ッジコネクターを接続部材として用いる場合には、端子
部を形成するために放電部材の端部を放電部と交わる方
向に曲げ形成する必要があり、この曲げ部の変形、残留
応力が放電部にまで及び、積層体の変形、剥がれ、ずれ
等の発生する危険が高まる。この影響は特に長期に渡る
使用において、放電部を形成する複合積層体の構成部材
間の熱膨脹/収縮の差による微小ずれの発生の繰り返
し、積層のための接着剤の接着力低下といった条件下で
は静電記録ヘッドに積層剥がれ、構成部材のずれといっ
た決定的な損傷を与える恐れがあり、耐久性、信頼性が
著しく低下する。一方、曲げの影響を減少するため、放
電部材の曲げ部を薄肉にしたり、パターン幅を狭めたり
することは組立工程における放電部材の取扱い性を低下
させ、作業を困難なものにする。2. When the card edge connector is used as a connecting member to avoid upsizing, it is necessary to bend the end of the discharge member in the direction intersecting the discharge part to form the terminal part. The residual stress reaches the discharge part, and the risk of deformation, peeling, displacement, etc. of the laminate increases. This effect is particularly noticeable when used over a long period of time under the condition that repeated micro-deviation occurs due to the difference in thermal expansion / contraction between the constituent members of the composite laminate forming the discharge part, and the decrease in adhesive strength of the adhesive for lamination. There is a risk of delamination of the electrostatic recording head and definite damage such as displacement of constituent members, resulting in a marked decrease in durability and reliability. On the other hand, in order to reduce the influence of bending, thinning the bent portion of the discharge member or narrowing the pattern width reduces the handleability of the discharge member in the assembly process and makes the work difficult.
【0007】3.高密度用及び大判サイズ用の静電記録
ヘッドでは、マトリックス要素即ち接続端子数が増大す
るため、電気的接続を確保するための接続部材の接触圧
の総量は大きな値となる。これにより端子部が変形する
危険性が高まり、更に端子部と一体となった放電部にま
で変形の影響が及び、積層体の剥がれ、位置ずれ等の損
傷を与える。この変形を防ぐため端子部または、端子部
を支持する装置本体の強度を増すことは装置の大型化を
招く。3. In high-density and large-size electrostatic recording heads, the number of matrix elements, that is, the number of connection terminals, increases, so that the total contact pressure of the connection members for ensuring electrical connection becomes a large value. As a result, the risk of the terminal portion deforming is increased, and further the influence of the deformation is exerted on the discharge portion integrated with the terminal portion, resulting in damage such as peeling and displacement of the laminated body. Increasing the strength of the terminal portion or the device body supporting the terminal portion in order to prevent this deformation leads to an increase in the size of the device.
【0008】4.放電部と端子部が一体となった放電部
材では、組立工程において放電部、端子部それぞれの基
体に対する位置精度を同時に維持することが必要にな
り、部品製作、組立が非常に困難になる。4. In the discharge member in which the discharge part and the terminal part are integrated, it is necessary to maintain the positional accuracy of the discharge part and the terminal part with respect to the base body at the same time in the assembly process, which makes it extremely difficult to manufacture and assemble parts.
【0009】本発明は従来の静電記録ヘッドが有してい
た上述の問題点を解決し、画像形成装置の小型化、高密
度化に対応可能であり、耐久性、信頼性が高く、更に製
作が容易な静電記録ヘッドを提供することを目的とす
る。The present invention solves the above-mentioned problems of the conventional electrostatic recording head, and is compatible with downsizing and high density of the image forming apparatus, and has high durability and reliability. An object is to provide an electrostatic recording head that is easy to manufacture.
【0010】[0010]
【課題を解決するための手段】本発明に係わる静電記録
ヘッドは、イオン放出用放電部材と、この放電部材を、
これの駆動電源に接続するための端子部材と、前記放電
部材と端子部材とを支持する基体とを具備する静電記録
ヘッドにおいて、前記端子部材は、前記放電部材とは別
の構造体として、この放電部材の近傍に前記基体により
支持され、放電部材と電気的接続手段で連結されている
ことを特徴とする。An electrostatic recording head according to the present invention comprises an ion discharging discharge member and the discharge member.
In an electrostatic recording head comprising a terminal member for connecting to a driving power source thereof, and a base member supporting the discharge member and the terminal member, the terminal member is a structure separate from the discharge member, It is characterized in that it is supported in the vicinity of the discharge member by the base body and is connected to the discharge member by an electrical connecting means.
【0011】[0011]
【作用】駆動電源から、端子部材に供給される電流は、
この端子部材とは別に設けられた放電部材に、電気的接
続手段を介して供給される。この結果、イオンが放電部
材より放出される。Operation: The current supplied from the driving power supply to the terminal member is
It is supplied to a discharge member provided separately from the terminal member via an electrical connecting means. As a result, ions are ejected from the discharge member.
【0012】[0012]
【実施例】以下添付図面に基づいて本発明の実施例を説
明する。Embodiments of the present invention will be described below with reference to the accompanying drawings.
【0013】図1は本発明に基づく静電記録ヘッドの第
1の実施例を示す。この図でイオン放出のための放電部
材は、静電記録ヘッドの長手方向(図中矢印A方向)に
互いに所定間隔を有して平行に延在する複数の細幅導体
2−1,2−2,…を有する平板状の誘導電極2と、こ
れとは異なる方向に延在し、誘電体層5を介して各々独
立に設置され、細幅導体とマトリックス配列された複数
の放電電極3−1,3−2,…(図2で符号3で示す)
と、絶縁体層6を介して放電電極上に配置された制御電
極4とにより構成され、これらは一体的に積層されて基
体(基板)1上に設置されている。放電電極3及び制御
電極4における上記マトリックス交点に対応する位置に
は、それぞれイオン放出のための開口が設けられてい
る。誘導電極2の端部には各々の細幅導体に給電するた
めの接続部7−1,7−2,…が形成され、一方、放電
電極3−1,3−2…は隣接する電極相互が互に反対方
向に延在して細幅導体と交叉し、これら交叉点がマトリ
ックス交点となるように形成され、その端部8−1,8
−2,…(図2参照)が給電のための接続部となってい
る。FIG. 1 shows a first embodiment of an electrostatic recording head according to the present invention. In this figure, the discharge member for emitting ions is composed of a plurality of narrow conductors 2-1 and 2-2 extending parallel to each other at a predetermined interval in the longitudinal direction of the electrostatic recording head (direction of arrow A in the figure). 2, and a plurality of discharge electrodes 3 that extend in a different direction from the flat induction electrode 2 and are installed independently via a dielectric layer 5 and are arranged in a matrix with a narrow conductor. 1, 3-2, ... (shown by reference numeral 3 in FIG. 2)
And the control electrode 4 arranged on the discharge electrode via the insulator layer 6, which are integrally laminated and installed on the base (substrate) 1. At the positions corresponding to the above-mentioned matrix intersections in the discharge electrode 3 and the control electrode 4, openings for ion emission are provided respectively. Connection parts 7-1, 7-2, ... For supplying power to the respective narrow conductors are formed at the ends of the induction electrode 2, while the discharge electrodes 3-1, 3-2 ... Are formed so that they extend in mutually opposite directions and intersect with the narrow conductors, and these intersections become matrix intersections.
-2, ... (See FIG. 2) are connecting portions for power feeding.
【0014】基体1上には、上記放電部材の長手方向の
両側に隣接して、静電記録ヘッドを駆動する電源回路部
との接続のための多数の端子よりなる1対の端子部材9
−1,9−2が設置されている。端子部材は、誘導電極
の接続部7−1,7−2,…及び放電電極の端部に対応
するそれぞれの位置に接続用の導体端子パターンが形成
された薄板状の部材であり、端子部材の端子パターンの
一端と放電部材の各電極の端子部との間を細い導線10
−1,10−2,…10−n,10−n1 …で接続し、
端子パターンの他端は電源回路部との接続部を形成して
いる。On the substrate 1, a pair of terminal members 9 adjacent to both sides of the discharge member in the longitudinal direction for connecting to a power supply circuit section for driving the electrostatic recording head are provided.
-1, 9-2 are installed. The terminal member is a thin plate-like member in which conductor terminal patterns for connection are formed at respective positions corresponding to the connecting portions 7-1, 7-2, ... Of the induction electrode and the end portion of the discharge electrode. A thin conductive wire 10 is provided between one end of the terminal pattern and the terminal portion of each electrode of the discharge member.
-1, 10-2, ... 10-n, 10-n 1 ...
The other end of the terminal pattern forms a connection with the power supply circuit.
【0015】図2は図1に示す静電記録ヘッドの設置状
態を図1のA方向と直交する方向の断面で示したもので
ある。ここにおいて静電記録ヘッドはその幅方向中心線
を誘電体ドラム11の回転中心軸線と直角に交るように
配置され、制御電極4が微小間隔を保ちつつ誘電体ドラ
ム11に対向配置されている。静電記録ヘッドの下部両
側には、端子部材9−1,9−2の端子が夫々接続され
るように、この端子部材の端子パターンに対応して、複
数の給電接触片12−1,12−2,…を上に配列載置
した1対の電源回路基板13−1,13−2が設けら
れ、静電記録ヘッドはこの接触片と端子部材との接触を
維持しながら、上記微小間隔を保って設置されている。FIG. 2 is a cross-sectional view of the electrostatic recording head shown in FIG. 1 installed in a direction orthogonal to the direction A in FIG. Here, the electrostatic recording head is arranged so that its center line in the width direction intersects at right angles with the rotation center axis of the dielectric drum 11, and the control electrode 4 is arranged so as to face the dielectric drum 11 while maintaining a minute gap. .. In order to connect the terminals of the terminal members 9-1 and 9-2 to both sides of the lower part of the electrostatic recording head, a plurality of feeding contact pieces 12-1 and 12 corresponding to the terminal patterns of the terminal members are connected. A pair of power supply circuit boards 13-1 and 13-2 having -2, ... arranged thereon are provided, and the electrostatic recording head maintains the contact between the contact piece and the terminal member while maintaining the above-mentioned minute gap. It has been installed.
【0016】図1及び図2に示す静電記録ヘッドにおい
て、前記誘電体層5、絶縁体層6、誘導電極2、放電電
極3および制御電極4の厚みは夫々10〜数10μmの
範囲に設定してあり、これらの部材が積層され一体化し
た構造となっている。一方、イオン発生を維持するため
の所要電流は微小であるため、端子部材9−1,9−2
と誘導電極2並びに放電電極3との間の電気的接続をす
る細い導線10はアルミ、金等の細い導線を用い、その
両端部をそれぞれワイヤボンディング法により端子部材
9−1,9−2並びに誘導電極2、放電電極3に融着し
ている。In the electrostatic recording head shown in FIGS. 1 and 2, the thickness of the dielectric layer 5, the insulating layer 6, the induction electrode 2, the discharge electrode 3 and the control electrode 4 is set in the range of 10 to several tens of μm. The structure is such that these members are laminated and integrated. On the other hand, since the required current for maintaining the generation of ions is very small, the terminal members 9-1, 9-2
The thin conductive wire 10 for electrically connecting the lead electrode 2, the discharge electrode 3 and the induction electrode 2 is a thin conductive wire made of aluminum, gold, or the like, and both ends of the thin conductive wire 10 are connected by the wire bonding method to the terminal members 9-1, 9-2 and It is fused to the induction electrode 2 and the discharge electrode 3.
【0017】静電記録ヘッドを構成する上記積層体は曲
げ方向の力が加わった場合各構成部材間の積層剥がれ、
相対位置ずれが発生しやすい性質がある。一方、給電接
触部では電気的接触を確実に行うため、接触部1箇所当
たり、通常数十グラムの接触圧が必要になり、マトリッ
クス配置された電極構成では接触部の数が多いため、そ
の総量は大きな値になる。例えばA4判で300ドット
/インチの解像度で印字する場合、2500個前後のイ
オン放出孔が必要となり、これを誘導電極2と放電電極
3の12*210のマトリックスで構成すると222箇
所の接続部が生じる。そのため接触圧の総量は数キログ
ラムから十数キログラムに達する。このため、使用状態
の静電記録ヘッドにおいては、端子部材及び基体の端子
部材支持部(両側上部)には過大な力がかかり、たわ
み、変形が発生しやすくなる。本実施例の静電記録ヘッ
ドでは、上記のようにイオン発生部と端子部が電気的接
続を行う細い導線のみで接続されているため、このよう
な端子部で発生するたわみ、変形の影響がイオン発生部
にまで及ぶことがない。When a force in the bending direction is applied to the above-mentioned laminated body constituting the electrostatic recording head, the laminated layers are peeled off between the respective constituent members,
There is a property that relative displacement easily occurs. On the other hand, in order to ensure electrical contact at the power supply contact part, a contact pressure of several tens of grams is usually required per contact part, and since the number of contact parts is large in a matrix-arranged electrode configuration, the total amount of contact pressure is large. Is a large value. For example, when printing with A4 size at a resolution of 300 dots / inch, about 2500 ion emission holes are required, and if this is composed of a matrix of 12 * 210 of the induction electrode 2 and the discharge electrode 3, 222 connection parts are formed. Occurs. Therefore, the total amount of contact pressure reaches several kilograms to a dozen kilograms. For this reason, in the electrostatic recording head in use, excessive force is applied to the terminal member and the terminal member support portions (both upper portions) of the base body, and bending and deformation are likely to occur. In the electrostatic recording head of the present embodiment, since the ion generating portion and the terminal portion are connected only by a thin conductive wire that makes electrical connection as described above, the influence of the deflection and deformation generated at such a terminal portion is It does not extend to the ion generator.
【0018】図3及び図4は本発明に基づく静電記録ヘ
ッドの第2の実施例を示し、第1実施例と同じ構成部材
には同番号を付してある。図3において、基体21は矩
形断面を有する中空のブロック体で形成され、その外周
表面に放電電極3及び1対の端子部材9−1,9−2を
載置する複数(3つ)の載置面を有している。このう
ち、端子部材9−1,9−2の載置面は、誘導電極2、
誘電体層(図示しない)、放電電極3、絶縁体層(図示
しない)、制御電極4の積層体により構成されるイオン
放電部を載置する外面(上面)と直交する方向にある相
対する一組の外面(側面)で構成している。これら載置
面には端子部材が夫々設置されている。また基体21の
幅及び長さは、誘導電極2の幅及び長さと略同等になる
ように設定され、上記放電部材を基体上に設置した際
に、基体幅以上の突出部が生じないようになっている。
誘導電極2の接続部パターンは誘導電極の長手方向の縁
の一方に沿って配置され、片側の端子部材9−1により
全ての誘導電極パターンに給電されるように構成されて
いる。誘導電極2並びに放電電極3のそれぞれの接続部
と端子部材9−1,9−2との間は第1実施例と同様に
細い導線10にて電気的に接続され、端子部材からの電
気信号が誘導電極2並びに放電電極3に夫々供給される
ようになっている。これら導線10は誘導電極2及び端
子部材表面の長手方向に沿い互いに所定間隔を有して配
線されている。3 and 4 show a second embodiment of the electrostatic recording head according to the present invention, and the same components as those in the first embodiment are designated by the same reference numerals. In FIG. 3, the base body 21 is formed of a hollow block body having a rectangular cross section, and a plurality of (three) mounting bodies for mounting the discharge electrode 3 and a pair of terminal members 9-1 and 9-2 on the outer peripheral surface thereof. It has a table surface. Of these, the mounting surfaces of the terminal members 9-1 and 9-2 are the induction electrodes 2,
One of the dielectric layers (not shown), the discharge electrode 3, the insulator layer (not shown), and the control electrode 4 that are opposed to each other in the direction orthogonal to the outer surface (top surface) on which the ion discharge portion is placed. It is composed of the outer surface (side surface) of the set. Terminal members are installed on these mounting surfaces, respectively. The width and the length of the base 21 are set to be substantially the same as the width and the length of the induction electrode 2, so that when the discharge member is placed on the base, no protrusions larger than the width of the base are generated. Is becoming
The connection portion pattern of the induction electrode 2 is arranged along one of the longitudinal edges of the induction electrode, and is configured so that power is supplied to all induction electrode patterns by the terminal member 9-1 on one side. Similar to the first embodiment, the connection between the induction electrode 2 and the discharge electrode 3 and the terminal members 9-1 and 9-2 are electrically connected by the thin conductive wire 10, and an electric signal from the terminal member is generated. Are supplied to the induction electrode 2 and the discharge electrode 3, respectively. These conducting wires 10 are wired along the longitudinal direction of the surface of the induction electrode 2 and the terminal member at a predetermined interval from each other.
【0019】図4は図3に示すB方向と直交する方向で
の第2実施例の構成を示す。ここにおいて、1対の電源
回路基板13−1,13−2は、端子部材9−1,9−
2のそれぞれの端子と夫々接触し、これらに給電するた
めの給電接触片12−1,12−2、…を基板内側面に
多数並べて載置し、誘電体ドラム11の中心軸線を通る
垂直面を中心として対称に向かい配置されている。FIG. 4 shows the structure of the second embodiment in the direction orthogonal to the B direction shown in FIG. Here, the pair of power supply circuit boards 13-1 and 13-2 includes terminal members 9-1 and 9-.
A plurality of power supply contact pieces 12-1, 12-2, ..., which are respectively in contact with the respective terminals of No. 2 and which supply power to these terminals, are arranged side by side on the inner surface of the substrate, and a vertical surface passing through the central axis of the dielectric drum 11. Are arranged symmetrically with respect to.
【0020】以上のように構成されているので、第2実
施例に示した構成の静電記録ヘッドにおいては、接続用
の端子部材がヘッド側面に配置され、ヘッド幅が放電部
材幅と略同等に形成できるため、ヘッド自体の幅を第1
実施例に示したものに比べ小さくすることができる。With the above-described structure, in the electrostatic recording head having the structure shown in the second embodiment, the connecting terminal member is arranged on the side surface of the head, and the head width is substantially equal to the discharge member width. The width of the head itself is
It can be made smaller than that shown in the embodiment.
【0021】また静電記録ヘッドに給電するための1対
の電源回路基板が、誘電体ドラム中心垂直方向に静電記
録ヘッドを挟み込む形で配置されるため、このヘッド並
びに電源基板により構成される静電記録部の誘電体ドラ
ム表面における占有面積を小さくすることができ、特に
小型化された画像形成装置においては誘電体ドラム周り
の現像装置、クリーニング装置、除電装置等の配置が容
易になる。Further, since a pair of power supply circuit boards for supplying power to the electrostatic recording head are arranged so as to sandwich the electrostatic recording head in a direction perpendicular to the center of the dielectric drum, the pair of power supply circuit boards are constituted by this head and the power supply board. It is possible to reduce the area occupied by the electrostatic recording unit on the surface of the dielectric drum, and particularly in a downsized image forming apparatus, it is easy to arrange the developing device, the cleaning device, the static eliminator and the like around the dielectric drum.
【0022】更に、電源回路基板13−1,13−2上
の給電接触片12−1,12−2が静電記録ヘッドを両
側より挟み込むように配置されているため、第1実施例
の構成とは異なり、接触片による接触圧がヘッド基体に
対し、曲げ力ではなく圧縮力として作用し、このため、
基体自体の必要強度を小さくすることができる。次に本
発明に基づく静電記録ヘッドの第3の実施例を図5及び
図6に示す。Further, since the power supply contact pieces 12-1 and 12-2 on the power supply circuit boards 13-1 and 13-2 are arranged so as to sandwich the electrostatic recording head from both sides, the construction of the first embodiment. In contrast to, the contact pressure of the contact piece acts on the head substrate as a compressive force instead of a bending force.
The required strength of the substrate itself can be reduced. Next, a third embodiment of the electrostatic recording head according to the present invention is shown in FIGS.
【0023】本実施例では放電部材と端子部材との接続
方法が第1及び第2実施例と異なる。図5及び図6にお
いて1対の端子部材19−1,19−2は、逆U字形の
基体21の両側外面に設けられた絶縁性の基材20の上
に形成された複数の導電体の接続端子パターン22−
1,22−2,…(図6参照)で夫々構成されている。
これら個々の接続端子パターンは、基材20の上縁を越
えて延在し、その先端部が略直角方向に曲げられ、基体
21の上面に設けられた放電部材2の接続部7−1,7
−2,…との融着部を形成している。そして、接続部7
−1,7−2,…と、接続端子22−1,22−2,…
の上記先端部に形成された融着部とには半田メッキが施
され、両者を重ね合わせた後の熱による融着が可能なよ
うになっている。組立時には図6に示すように、端子部
材19−1,19−2を、これの融着部が放電部材2の
対応する接続部7−1,7−2,…と夫々重なり合うよ
うに基板長手方向(C方向)の位置決めをし、更に上下
方向(D方向)に移動させ上記融着部が重なるように組
み立てた後、融着部を加熱し放電電極と接続端子とを結
合する。In this embodiment, the method of connecting the discharge member and the terminal member is different from that in the first and second embodiments. 5 and 6, the pair of terminal members 19-1 and 19-2 are composed of a plurality of conductors formed on the insulating base material 20 provided on both outer surfaces of the inverted U-shaped base body 21. Connection terminal pattern 22-
1, 22-2, ... (See FIG. 6), respectively.
Each of these connection terminal patterns extends beyond the upper edge of the base material 20, the tip end portion of which is bent in a substantially right-angled direction, and the connection portion 7-1 of the discharge member 2 provided on the upper surface of the base 21. 7
A fusion-bonded portion with -2, ... Is formed. And the connection part 7
-1, 7-2, ... and connection terminals 22-1, 22-2, ...
Solder plating is applied to the fusion-bonding portion formed on the above-mentioned tip portion so that they can be fused by heat after they are superposed. At the time of assembly, as shown in FIG. 6, the terminal members 19-1 and 19-2 are arranged so that the fused portions of the terminal members 19-1 and 19-2 overlap the corresponding connecting portions 7-1, 7-2, ... After positioning in the direction (C direction) and further moving in the up and down direction (D direction) to assemble so that the fused portions overlap, the fused portions are heated to bond the discharge electrodes and the connection terminals.
【0024】本実施例に示した構成では、電極と接続端
子との間の接続をワイヤーボンディング法に代えて熱融
着法としたため、放電部材と端子部材との接続が容易に
できる。一方接続端子22−1,22−2,…は薄板状
の導電体で形成されるため、給電接触圧による端子部材
の変形の影響が放電電極に及ぶことはない。In the structure shown in this embodiment, the wire bonding method is used instead of the wire bonding method for the connection between the electrode and the connection terminal, so that the discharge member and the terminal member can be easily connected. On the other hand, since the connection terminals 22-1, 22-2, ... Are formed of thin plate-shaped conductors, the discharge electrodes are not affected by the deformation of the terminal member due to the contact pressure of power supply.
【0025】[0025]
【発明の効果】以上説明したように本発明による静電記
録ヘッドによれば、イオン放出のための放電部材と、該
放電部材とこれを駆動するための電源回路との接続用の
端子部材とを、別の構造体として基体に支持させたた
め、接続のための接触圧により引き起こされる端子部材
部の変形が放電部材にまで及ぶことがなく、放電部材を
構成する積層体の変形、剥がれ、ずれの発生を防止でき
長期に渡り安定して静電記録ヘッドを使用することがで
きる。As described above, according to the electrostatic recording head of the present invention, the discharge member for emitting ions and the terminal member for connecting the discharge member and the power supply circuit for driving the discharge member are provided. Since the above is supported by the base body as another structure, the deformation of the terminal member portion caused by the contact pressure for connection does not extend to the discharge member, and the deformation, peeling, or displacement of the laminate constituting the discharge member is prevented. Therefore, the electrostatic recording head can be stably used for a long period of time.
【0026】また、端子部材の設置面を放電部材設置面
と互いに交わる方向とすることにより、静電記録ヘッド
自体の大きさ及び電源回路基板を含めた設置面積を縮小
することができ、画像形成装置を小型に製作することが
可能となる。Further, by arranging the installation surface of the terminal member so as to intersect with the installation surface of the discharge member, the size of the electrostatic recording head itself and the installation area including the power supply circuit board can be reduced, and an image is formed. It is possible to manufacture the device in a small size.
【0027】更に、放電部材と端子部材を別の構造体と
したため、これらを基体上に設置する際に独立して位置
決めできるようになり、静電記録ヘッドの組み立てが容
易になる。といった効果が得られる。Furthermore, since the discharge member and the terminal member are formed as separate structures, they can be positioned independently when they are installed on the base, and the electrostatic recording head can be easily assembled. Such an effect can be obtained.
【図1】本発明の第1の実施例に係わる静電記録ヘッド
を示す斜視図。FIG. 1 is a perspective view showing an electrostatic recording head according to a first embodiment of the invention.
【図2】上記第1の実施例に係わる静電記録ヘッド図1
のA方向から見た側面図。FIG. 2 is an electrostatic recording head according to the first embodiment shown in FIG.
The side view seen from the A direction.
【図3】本発明の第2の実施例に係わる静電記録ヘッド
を示す斜視図。FIG. 3 is a perspective view showing an electrostatic recording head according to a second embodiment of the invention.
【図4】上記第2の実施例に係わる静電記録ヘッド図3
のB方向から見た側面図。FIG. 4 is an electrostatic recording head according to the second embodiment shown in FIG.
The side view seen from the B direction.
【図5】本発明の第3の実施例に係わる静電記録ヘッド
を示す斜視図。FIG. 5 is a perspective view showing an electrostatic recording head according to a third embodiment of the invention.
【図6】上記第3の実施例に係わる静電記録ヘッドを一
部拡大して示す斜視図。FIG. 6 is a partially enlarged perspective view showing an electrostatic recording head according to the third embodiment.
1…基体(基板)、2…誘導電極、3(3−1,3−2
…)…放電電極、4…制御部材、5…誘電体層、9−
1,9−2…端子部材、10−1,10−2…導線。1 ... Base (substrate), 2 ... Induction electrode, 3 (3-1, 3-2
...) ... Discharge electrode, 4 ... Control member, 5 ... Dielectric layer, 9-
1, 9-2 ... Terminal member, 10-1, 10-2 ... Conductor wire.
Claims (2)
を、これの駆動電源に接続するための端子部材と、前記
放電部材と端子部材とを支持する基体とを具備する静電
記録ヘッドにおいて、前記端子部材は、前記放電部材と
は別の構造体として、この放電部材の近傍に前記基体に
より支持され、放電部材と電気的接続手段で連結されて
いることを特徴とする静電記録ヘッド。1. An electrostatic recording head comprising: an ion discharge discharge member; a terminal member for connecting the discharge member to a driving power source for the discharge member; and a base body supporting the discharge member and the terminal member. The electrostatic recording head is characterized in that the terminal member is supported by the base member in the vicinity of the discharge member as a structure separate from the discharge member and is connected to the discharge member by an electrical connection means. ..
る一面と、この一面と交叉し、前記端子部材を上に支持
する他面とを具備することを特徴とする請求項1に記載
の静電記録ヘッド。2. The base body comprises one surface for supporting the discharge member on the upper side and another surface for intersecting the one surface and supporting the terminal member on the other side. Electrostatic recording head.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5883091A JPH05212897A (en) | 1991-03-22 | 1991-03-22 | Electrostatic recording head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5883091A JPH05212897A (en) | 1991-03-22 | 1991-03-22 | Electrostatic recording head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH05212897A true JPH05212897A (en) | 1993-08-24 |
Family
ID=13095569
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5883091A Withdrawn JPH05212897A (en) | 1991-03-22 | 1991-03-22 | Electrostatic recording head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH05212897A (en) |
-
1991
- 1991-03-22 JP JP5883091A patent/JPH05212897A/en not_active Withdrawn
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19980514 |