JPH0611981A - Construction of line type heating body - Google Patents
Construction of line type heating bodyInfo
- Publication number
- JPH0611981A JPH0611981A JP4168859A JP16885992A JPH0611981A JP H0611981 A JPH0611981 A JP H0611981A JP 4168859 A JP4168859 A JP 4168859A JP 16885992 A JP16885992 A JP 16885992A JP H0611981 A JPH0611981 A JP H0611981A
- Authority
- JP
- Japan
- Prior art keywords
- insulating substrate
- pattern
- terminal electrode
- connecting terminal
- resistance pattern
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、複写機又は電子写真式
プリンタ等におけるトナー定着部等の加熱部に使用する
ライン型加熱体の構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a line type heating element used for a heating section such as a toner fixing section in a copying machine or an electrophotographic printer.
【０００２】[0002]
【従来の技術】先行技術としての特開平３−１５０５８
４号公報は、図４及び図５に示すように、細長い形状に
した絶縁基板１の上面側に、帯状の発熱抵抗パターン２
を絶縁基板１の長手方向に沿って延びるように形成する
と共に、前記発熱抵抗パターン２の途中部分に当該発熱
抵抗パターン２に繋がる中間電極部３，４を形成する一
方、前記絶縁基板１の下面側に、前記発熱抵抗パターン
２の両端における電極部５，６にスルーホール７，８を
介して電気的に接続した接続用端子電極部９，１０を形
成すると共に、前記両中間電極部３，４から他方の接続
用端子電極部１０の方向に延びる導体パターン１１，１
２を形成し、この両導体パターン１１，１２と前記両中
間電極部３，４とを、各々スルーホール１３，１４を介
して電気的に接続して成るライン型加熱体を提案してい
る。2. Description of the Related Art Japanese Patent Laid-Open No. 3-15058 as prior art
No. 4, as shown in FIGS. 4 and 5, a strip-shaped heating resistance pattern 2 is formed on the upper surface side of an insulating substrate 1 having an elongated shape.
Is formed so as to extend along the longitudinal direction of the insulating substrate 1, and intermediate electrode portions 3 and 4 connected to the heating resistor pattern 2 are formed in the middle of the heating resistor pattern 2 while the lower surface of the insulating substrate 1 is formed. On the side, connecting terminal electrode portions 9 and 10 electrically connected to the electrode portions 5 and 6 at both ends of the heat generation resistance pattern 2 through through holes 7 and 8 are formed, and the intermediate electrode portions 3 and 3 are formed. Conductor patterns 11, 1 extending from 4 in the direction of the other connecting terminal electrode portion 10
2 has been proposed, and a line-type heating body is proposed in which the both conductor patterns 11 and 12 and the intermediate electrode portions 3 and 4 are electrically connected through through holes 13 and 14, respectively.
【０００３】そして、この加熱体は、前記両接続用端子
電極部９，１０間に対して電流を印加すると、発熱抵抗
パターン２における略全長Ｌ0 にわたる部分が発熱し、
両接続用端子電極部９，１０のうち一方の接続用端子電
極部９と、両導体パターン１１，１２のうち一方の導体
パターン１１の端部における接続用端子電極部１５との
間に対して電流を印加すると、発熱抵抗パターン２のう
ち長さＬ1 の部分が発熱し、そして、両接続用端子電極
部９，１０のうち一方の接続用端子電極部９と、両導体
パターン１１，１２のうち他方の導体パターン１２の端
部における接続用端子電極部１６との間に対して電流を
印加すると、発熱抵抗パターン２のうち長さＬ2 の部分
が発熱すると言うように、被加熱物の大きさに応じて発
熱有効長さを変更できるように構成したものである。When a current is applied between the connecting terminal electrode portions 9 and 10 of the heating element, a portion of the heating resistor pattern 2 over the substantially entire length L 0 generates heat,
Between one of the connecting terminal electrode portions 9 and 10 for connecting and the connecting terminal electrode portion 15 at the end portion of one of the conductor patterns 11 and 12 for connecting. When a current is applied, the portion of the heating resistance pattern 2 having the length L 1 generates heat, and one of the connection terminal electrode portions 9 and 10 for connection, and the conductor patterns 11 and 12 for connection. When a current is applied between the end of the other conductor pattern 12 and the connecting terminal electrode portion 16, the portion of the heating resistance pattern 2 having the length L 2 generates heat. The heat generation effective length can be changed according to the size of the.
【０００４】[0004]
【発明が解決しようとする課題】しかし、この先行技術
のライン型加熱体は、絶縁基板１の下面に両導体パター
ン１１，１２を形成したことによって、絶縁基板１の表
面から大気中への放熱量、及び絶縁基板１から当該絶縁
基板１の下面側に配設した支持部材への熱伝達量が、前
記両導体パターン１１，１２の部分において増大すると
言う傾向を呈するにもかかわらず、前記両導体パターン
１１，１２を、発熱抵抗パターン２の途中における両中
間電極部３，４から他方の接続用端子電極部１０の方向
に延びるように形成すると言う構成にしている。However, in this line-type heating body of the prior art, both conductor patterns 11 and 12 are formed on the lower surface of the insulating substrate 1, so that the surface of the insulating substrate 1 is released into the atmosphere. Despite the tendency that the amount of heat and the amount of heat transfer from the insulating substrate 1 to the supporting member arranged on the lower surface side of the insulating substrate 1 increase in the portions of the both conductor patterns 11 and 12, both of the above The conductor patterns 11 and 12 are formed so as to extend from both the intermediate electrode portions 3 and 4 in the middle of the heating resistance pattern 2 toward the other connecting terminal electrode portion 10.
【０００５】従って、前記発熱抵抗パターン２のうち略
全長Ｌ0 にわたる部分を発熱するときにおいて、この略
全長Ｌ0 のうち他方の電極部８と中間電極部３との間の
部分、及び両中間電極部３，４間の部分における温度
が、これらの部分における下面側に形成した両導体パタ
ーン１１，１２からの放熱及び熱伝達のために、一方の
電極部７と中間電極部４との間の部分における温度より
も低くなることになる。Therefore, when heat is generated in a portion of the heat generation resistance pattern 2 extending over substantially the entire length L 0, a portion of the substantially overall length L 0 between the other electrode portion 8 and the intermediate electrode portion 3 and both intermediate portions. The temperature at the portion between the electrode portions 3 and 4 is between the one electrode portion 7 and the intermediate electrode portion 4 in order to dissipate heat and transfer heat from both conductor patterns 11 and 12 formed on the lower surface side of these portions. It will be lower than the temperature in the part.
【０００６】また、前記発熱抵抗パターン２のうち長さ
Ｌ1 の部分を発熱するときにおいても、この長さＬ1 の
うち両中間電極部３，４間の部分における温度が、当該
部分における下面側に形成した導体パターン１２からの
放熱及び熱伝達のために、一方の電極部７と中間電極部
４との間の部分における温度よりも低くなることにな
る。Also, when the length L 1 portion of the heating resistance pattern 2 is heated, the temperature in the portion between the intermediate electrode portions 3 and 4 of the length L 1 is the lower surface of the portion. Due to heat radiation and heat transfer from the conductor pattern 12 formed on the side, the temperature becomes lower than the temperature in the portion between the one electrode portion 7 and the intermediate electrode portion 4.
【０００７】すなわち、前記先行技術のライン型加熱体
は、発熱抵抗パターン２の長手方向に沿っての温度分布
が不揃いになると言う問題があった。また、別の先行技
術としての特開平３−１４０２５７号公報及び特開平３
−１４０２５８号公報は、図６に示すように、絶縁基板
１ａの上面に、ライン状の発熱抵抗パターン２ａを形成
すると共に、該発熱抵抗パターン２ａの両端に対する接
続用端子電極部９ａ，１０ａを形成し、更に、前記絶縁
基板１ａの上面には、前記発熱抵抗パターン２ａの途中
に中間電極部３ａ，４ａと、この両中間電極部３ａ，４
ａから前記両接続用端子電極部９ａ，１０ａのうち他方
の接続用端子電極部１０ａの方向に延びる導体パターン
１１ａ，１２ａを形成し、この両導体パターン１１ａ，
１２ａの端部に接続用端子電極部１５ａ，１６ａを形成
することにより、発熱有効長さをＬ0 、Ｌ1 及びＬ2 に
適宜変更できるように構成したライン型の加熱体を提案
している。That is, the line type heating element of the prior art has a problem that the temperature distribution along the longitudinal direction of the heating resistance pattern 2 becomes uneven. Further, as other prior arts, JP-A-3-140257 and JP-A-3140257.
In JP-A-140258, as shown in FIG. 6, a linear heating resistance pattern 2a is formed on the upper surface of an insulating substrate 1a, and connection terminal electrode portions 9a and 10a are formed on both ends of the heating resistance pattern 2a. Further, on the upper surface of the insulating substrate 1a, intermediate electrode portions 3a and 4a are formed in the middle of the heating resistance pattern 2a, and the intermediate electrode portions 3a and 4a are formed.
Conductor patterns 11a and 12a extending from a to the other connecting terminal electrode portion 10a of the connecting terminal electrode portions 9a and 10a are formed.
A line-type heating element is proposed in which the effective heating length can be appropriately changed to L 0 , L 1 and L 2 by forming the connecting terminal electrode portions 15a and 16a at the ends of 12a. .
【０００８】しかし、この場合においても、絶縁基板１
に形成した両導体パターン１１ａ，１２ａからの放熱の
ために、発熱抵抗パターン２ａの長手方向に沿っての温
度分布が不揃いになると言う問題があった。本発明は、
この問題、つまり、発熱有効長さを変更できるようにし
たライン型加熱体において、発熱抵抗パターンにおける
長手方向に沿っての温度分布が不揃いになることを確実
に低減できるようにすることを技術的課題とするもので
ある。However, even in this case, the insulating substrate 1
There is a problem that the temperature distribution along the longitudinal direction of the heating resistance pattern 2a becomes uneven due to the heat radiation from both the conductor patterns 11a and 12a formed in the above. The present invention is
This problem, that is, in a line type heating element capable of changing the effective heating length, it is technically possible to reliably reduce the uneven temperature distribution along the longitudinal direction of the heating resistance pattern. This is an issue.
【０００９】[0009]
【課題を解決するための手段】この技術的課題を達成す
るため本発明は、細長い形状にした絶縁基板と、該絶縁
基板のその長手方向に延びるように形成した発熱抵抗パ
ターンと、該発熱抵抗パターンの両端に対する接続用端
子電極部と、前記絶縁基板の前記発熱抵抗パターンの途
中部分に接続した中間電極部から前記両接続用端子電極
部のうち他方の接続用端子電極部の方向に延びるように
形成した導体パターンとから成るライン型加熱体におい
て、前記絶縁基板のうち前記中間電極部と一方の接続用
端子電極部との間の部分に、前記導体パターンと同じ材
質による捨てパターンを、これらと非連続の状態にして
形成すると言う構成にした。In order to achieve this technical object, the present invention provides an insulating substrate having an elongated shape, a heating resistor pattern formed so as to extend in the longitudinal direction of the insulating substrate, and the heating resistor. Connecting terminal electrode portions for both ends of the pattern, and an intermediate electrode portion connected to an intermediate portion of the heat generating resistance pattern of the insulating substrate so as to extend in the direction of the other connecting terminal electrode portion of the both connecting terminal electrode portions. In the line-type heating body consisting of the conductor pattern formed in, a part of the insulating substrate between the intermediate electrode portion and one of the connecting terminal electrode portions is provided with a discard pattern made of the same material as the conductor pattern. It is configured to be formed in a discontinuous state.
【００１０】[0010]
【作 用】このように絶縁基板に対して捨てパターン
を設けると、この捨てパターンからの大気中への放熱量
又は絶縁基板に対する支持部材への熱伝達量が増大し、
この捨てパターンからの放熱量又は熱伝達量が、絶縁基
板の表面に形成されている導体パターンからの放熱量又
は熱伝達量に対して釣り合うことになるから、絶縁基板
から大気中への放熱量又は絶縁基板からその支持部材へ
の熱伝達量を、前記導体パターンの部分と、前記捨てパ
ターンの部分とにおいて略同じに揃えることができるの
である。[Operation] When the discard pattern is provided on the insulating substrate in this way, the amount of heat released from the discard pattern to the atmosphere or the amount of heat transferred to the supporting member for the insulating substrate increases,
The amount of heat radiation or heat transfer from this discarded pattern will be balanced with the amount of heat radiation or heat transfer from the conductor pattern formed on the surface of the insulating substrate, so the amount of heat radiation from the insulating substrate to the atmosphere. Alternatively, the amount of heat transfer from the insulating substrate to the supporting member can be made substantially the same in the conductor pattern portion and the waste pattern portion.
【００１１】[0011]
【発明の効果】従って、本発明によると、発熱有効長さ
を変更できるように構成したライン型加熱体において、
その発熱抵抗パターンにおける長手方向に沿っての温度
分布が不揃いになることを大幅に低減できて、被加熱物
を各所等しく加熱できる効果を有する。Therefore, according to the present invention, in the line type heating element constructed so that the effective heating length can be changed,
It is possible to significantly reduce the uneven temperature distribution along the longitudinal direction in the heating resistance pattern, and it is possible to uniformly heat the object to be heated at various places.
【００１２】[0012]
【実施例】以下、本発明の実施例を図面について説明す
る。図１及び図２は、前記図４及び図５に示すライン型
加熱体に対して適用した場合の第１実施例を示すもので
ある。このライン型加熱体は、細長い形状にした絶縁基
板１の上面側に、帯状の発熱抵抗パターン２を絶縁基板
１の長手方向に沿って延びるように形成すると共に、前
記発熱抵抗パターン２の途中部分に当該発熱抵抗パター
ン２に繋がる中間電極部３，４を形成する一方、前記絶
縁基板１の下面側に、前記発熱抵抗パターン２の両端に
おける電極部５，６にスルーホール７，８を介して電気
的に接続した接続用端子電極部９，１０を形成すると共
に、前記両中間電極部３，４から他方の接続用端子電極
部１０の方向に延びる帯状の導体パターン１１，１２を
形成し、この両導体パターン１１，１２と前記両中間電
極部３，４とを、各々スルーホール１３，１４を介して
電気的に接続し、更に、前記両導体パターン１１，１２
の端部に接続用端子電極部１５，１６を設けることによ
って、発熱有効長さをＬ0、Ｌ1 及びＬ2 に適宜変更で
きるように構成されている。Embodiments of the present invention will now be described with reference to the drawings. 1 and 2 show a first embodiment when applied to the line-type heating body shown in FIGS. 4 and 5. In this line-type heating body, a strip-shaped heat generating resistance pattern 2 is formed on the upper surface side of the insulating substrate 1 having an elongated shape so as to extend along the longitudinal direction of the insulating substrate 1, and the middle portion of the heat generating resistance pattern 2 is formed. While forming the intermediate electrode portions 3 and 4 connected to the heating resistance pattern 2 on the lower surface side of the insulating substrate 1, through the through holes 7 and 8 to the electrode portions 5 and 6 at both ends of the heating resistance pattern 2, respectively. Forming electrically connected connection terminal electrode portions 9 and 10 and forming strip-shaped conductor patterns 11 and 12 extending from the intermediate electrode portions 3 and 4 toward the other connection terminal electrode portion 10, The conductor patterns 11 and 12 and the intermediate electrode portions 3 and 4 are electrically connected to each other through through holes 13 and 14, respectively, and the conductor patterns 11 and 12 are further connected.
By providing the connecting terminal electrode portions 15 and 16 at the end portions of, the effective heat generation length can be appropriately changed to L 0 , L 1 and L 2 .
【００１３】そして、前記絶縁基板１における下面のう
ち前記一方の導体パターン１１に対して絶縁基板１の長
手方向に沿った反対側の部分に、当該一方の導体パター
ン１１と同じ材質の帯状の捨てパターン１７を、当該一
方の導体パターン１１から一方の接続用端子電極部９の
方向に、これらと非連続の状態で延びるように形成する
と共に、絶縁基板１における下面のうち前記他方の導体
パターン１２に対して絶縁基板１の長手方向に沿った反
対側の部分に、当該他方の導体パターン１２と同じ材質
の帯状の捨てパターン１８を、当該他方の導体パターン
１２から一方の接続用端子電極部９の方向に、これらと
非連続の状態で延びるように形成する。Then, in a portion of the lower surface of the insulating substrate 1 opposite to the one conductor pattern 11 along the longitudinal direction of the insulating substrate 1, a band-shaped waste material made of the same material as the one conductor pattern 11 is discarded. The pattern 17 is formed so as to extend from the one conductor pattern 11 in the direction of the one connecting terminal electrode portion 9 so as to be discontinuous with these, and the other conductor pattern 12 of the lower surface of the insulating substrate 1 is formed. On the other hand, a strip-shaped discarding pattern 18 made of the same material as the other conductor pattern 12 is provided at a portion on the opposite side along the longitudinal direction of the insulating substrate 1 from the other conductor pattern 12 to one of the connecting terminal electrode portions 9. In such a manner as to extend in a non-continuous state with these.
【００１４】なお、符号１９は、絶縁基板１における下
面のうち両接続用端子電極部９，１０との間の部分に、
これらと非連続の状態で帯状に形成した捨てパターンを
示すものであり、また、これら各捨てパターン１７，１
８，１９は、前記両導体パターン１１，１２を形成する
ときにおいて、同じ材料にて同時に形成される。このよ
うに、絶縁基板１の下面に対して捨てパターン１７，１
８を設けると、この両捨てパターン１７，１８からの大
気中への放熱量及び絶縁基板１に対する支持部材への熱
伝達量が増大し、この両捨てパターン１７，１８からの
放熱量及び熱伝達量が、絶縁基板１の下面に形成されて
いる両導体パターン１１，１２からの放熱量及び熱伝達
量に対して釣り合うことになるから、絶縁基板１から大
気中への放熱量及び絶縁基板１からその支持部材への熱
伝達量を、前記両導体パターン１１，１２の部分と、前
記両捨てパターン１７，１８の部分とにおいて略同じに
揃えることができる。The reference numeral 19 indicates a portion of the lower surface of the insulating substrate 1 between the connecting terminal electrode portions 9 and 10.
This shows a discard pattern formed in a band shape in a state of being discontinuous with these, and each of these discard patterns 17, 1
8 and 19 are formed of the same material at the same time when the conductor patterns 11 and 12 are formed. Thus, the discard patterns 17, 1 are formed on the lower surface of the insulating substrate 1.
When 8 is provided, the amount of heat released from the both discard patterns 17 and 18 to the atmosphere and the amount of heat transfer to the support member with respect to the insulating substrate 1 increase, and the amount of heat release and the heat transfer from the both discard patterns 17 and 18 increase. Since the amount of heat is balanced with the amount of heat radiation and the amount of heat transfer from both conductor patterns 11 and 12 formed on the lower surface of the insulating substrate 1, the amount of heat radiation from the insulating substrate 1 to the atmosphere and the insulating substrate 1 The amount of heat transferred from the to the supporting member can be made substantially equal in the portions of the conductor patterns 11 and 12 and the portions of the conductor patterns 17 and 18.
【００１５】その結果、前記発熱抵抗パターン２のうち
略全長Ｌ0 の部分を発熱した場合において、この略全長
Ｌ0 の部分のうち他方の電極部８と中間電極部３との間
の部分、及び両中間電極部３，４間の部分における温度
が、一方の電極部７と中間電極部４との間の部分におけ
る温度よりも低くなることを防止できる一方、前記発熱
抵抗パターン２のうち長さＬ1 の部分を発熱する場合に
おいて、この長さＬ1のうち両中間電極部３，４間の部
分における温度が、一方の電極部７と中間電極部４との
間の部分における温度よりも低くなることを防止できる
から、発熱抵抗パターン２における長手方向に沿っての
温度分布が不揃いになることを大幅に低減できるのであ
る。As a result, when a portion of the heating resistance pattern 2 having a substantially total length L 0 is heated, a portion of the portion having a substantially total length L 0 between the other electrode portion 8 and the intermediate electrode portion 3, Also, it is possible to prevent the temperature in the portion between both the intermediate electrode portions 3 and 4 from becoming lower than the temperature in the portion between the one electrode portion 7 and the intermediate electrode portion 4, while the long portion of the heating resistance pattern 2 is prevented. in the case where the heat generation portion of the L 1, than the temperature at the portion between the temperature in the portion between both the intermediate electrode portions 3 and 4 of the length L 1 is, one electrode portion 7 and the intermediate electrode 4 Since it can be prevented from becoming low, it is possible to greatly reduce the uneven temperature distribution along the longitudinal direction of the heating resistance pattern 2.
【００１６】図３は、前記図６に示すライン型加熱体に
対して適用した場合の第２実施例を示すものである。こ
のライン型加熱体は、絶縁基板１ａの上面に、帯状の発
熱抵抗パターン２ａを形成すると共に、該発熱抵抗パタ
ーン２ａの両端に対する接続用端子電極部９ａ，１０ａ
を形成し、更に、前記絶縁基板１ａの上面には、前記発
熱抵抗パターン２ａの途中に中間電極部３ａ，４ａと、
この両中間電極部３ａ，４ａから前記両接続用端子電極
部９ａ，１０ａのうち他方の接続用端子電極部１０ａの
方向に延びる帯状の導体パターン１１ａ，１２ａを形成
し、この両導体パターン１１ａ，１２ａの端部に接続用
端子電極部１５ａ，１６ａを形成することにより、発熱
有効長さをＬ0 、Ｌ1 及びＬ2 に適宜変更できるように
構成されている。FIG. 3 shows a second embodiment when applied to the line-type heating body shown in FIG. In this line-type heating element, a strip-shaped heating resistance pattern 2a is formed on the upper surface of the insulating substrate 1a, and connection terminal electrode portions 9a and 10a are formed on both ends of the heating resistance pattern 2a.
Further, on the upper surface of the insulating substrate 1a, intermediate electrode portions 3a and 4a are formed in the middle of the heating resistance pattern 2a,
Band-shaped conductor patterns 11a and 12a extending from the intermediate electrode portions 3a and 4a toward the other connecting terminal electrode portion 10a of the connecting terminal electrode portions 9a and 10a are formed. By forming the connecting terminal electrode portions 15a and 16a at the ends of 12a, the effective heat generation length can be appropriately changed to L 0 , L 1 and L 2 .
【００１７】そして、前記絶縁基板１ａにおける上面の
うち前記一方の導体パターン１１ａに対して絶縁基板１
の長手方向に沿った反対側の部分に、当該一方の導体パ
ターン１１ａと同じ材質の帯状の捨てパターン１７ａ
を、当該一方の導体パターン１１ａから一方の接続用端
子電極部９ａの方向に、これらと非連続の状態で延びる
ように形成すると共に、絶縁基板１における上面のうち
前記他方の導体パターン１２ａに対して絶縁基板１の長
手方向に沿った反対側の部分に、当該他方の導体パター
ン１２ａと同じ材質の帯状の捨てパターン１８ａを、当
該他方の導体パターン１２ａから一方の接続用端子電極
部９ａの方向に、これらと非連続の状態で延びるように
形成する。The insulating substrate 1 is attached to the one conductor pattern 11a on the upper surface of the insulating substrate 1a.
The strip-shaped discard pattern 17a made of the same material as that of the one conductor pattern 11a is provided on the opposite side portion along the longitudinal direction.
Is formed so as to extend from the one conductor pattern 11a in the direction of the one connection terminal electrode portion 9a so as to be discontinuous with these, and with respect to the other conductor pattern 12a of the upper surface of the insulating substrate 1. A strip-shaped discarding pattern 18a made of the same material as the other conductor pattern 12a is provided at a portion on the opposite side along the longitudinal direction of the insulating substrate 1 in the direction from the other conductor pattern 12a to the one connecting terminal electrode portion 9a. , And is formed so as to extend in a discontinuous state with these.
【００１８】なお、これら各捨てパターン１７ａ，１８
ａも、前記両導体パターン１１ａ，１２ａを形成すると
きにおいて、同じ材料ににて同時に形成される。このよ
うに、絶縁基板１ａに対して捨てパターン１７ａ，１８
ａを形成したことにより、この両捨てパターン１７ａ，
１８ａから大気中等への放熱量が、絶縁基板１ａの上面
に形成されている両導体パターン１１ａ，１２ａからの
放熱量に対して釣り合うことにより、絶縁基板１ａから
大気中等への放熱量を、前記両導体パターン１１ａ，１
２ａの部分と、前記両捨てパターン１７ａ，１８ａの部
分とにおいて略同じに揃えることができるから、発熱抵
抗パターン２における長手方向に沿っての温度分布が不
揃いになることを大幅に低減できるのである。Incidentally, each of these discard patterns 17a, 18
Also, a is formed of the same material at the same time when both the conductor patterns 11a and 12a are formed. In this way, the discarded patterns 17a, 18 are formed on the insulating substrate 1a.
By forming a, the double discard patterns 17a,
The amount of heat radiated from the insulating substrate 1a into the atmosphere is balanced by the amount of heat radiated from the insulating substrate 1a into the atmosphere by balancing the amount of heat radiated from both conductor patterns 11a and 12a formed on the upper surface of the insulating substrate 1a. Both conductor patterns 11a, 1
Since the portion 2a and the portions of the both discard patterns 17a and 18a can be aligned substantially the same, it is possible to greatly reduce the uneven temperature distribution along the longitudinal direction of the heating resistance pattern 2. .
【図１】本発明の第１実施例によるライン型加熱体の平
面図である。FIG. 1 is a plan view of a line-type heating body according to a first embodiment of the present invention.
【図２】本発明の第１実施例によるライン型加熱体の底
面図である。FIG. 2 is a bottom view of the line-type heating body according to the first embodiment of the present invention.
【図３】本発明の第２実施例によるライン型加熱体の平
面図である。FIG. 3 is a plan view of a line-type heating body according to a second embodiment of the present invention.
【図４】従来におけるライン型加熱体の平面図である。FIG. 4 is a plan view of a conventional line-type heating body.
【図５】従来におけるライン型加熱体の底面図である。FIG. 5 is a bottom view of a conventional line-type heating body.
【図６】従来における別のライン型加熱体の平面図であ
る。FIG. 6 is a plan view of another conventional line-type heating body.
１，１ａ 絶縁基板 ２，２ａ 発熱抵抗パターン ３，３ａ，４，４ａ 中間電極部 ９，９ａ，１０，１０ａ 接続用端子電極部 １１，１１ａ，１２，１２ａ 導体パターン １５，１５ａ，１６，１６ａ 接続用端子電極部 １７，１７ａ，１８，１８ａ 捨てパターン 1, 1a Insulating substrate 2, 2a Heat generation resistance pattern 3, 3a, 4, 4a Intermediate electrode part 9, 9a, 10, 10a Connection terminal electrode part 11, 11a, 12, 12a Conductor pattern 15, 15a, 16, 16a Connection Terminal electrode part 17, 17a, 18, 18a Discard pattern
Claims (1)
にその長手方向に延びるように形成した発熱抵抗パター
ンと、該発熱抵抗パターンの両端に対する接続用端子電
極部と、前記絶縁基板に前記発熱抵抗パターンの途中部
分に接続した中間電極部から前記両接続用端子電極部の
うち他方の接続用端子電極部の方向に延びるように形成
した導体パターンとから成るライン型加熱体において、
前記絶縁基板のうち前記中間電極部と一方の接続用端子
電極部との間の部分に、前記導体パターンと同じ材質に
よる捨てパターンを、これらと非連続の状態にして形成
したことを特徴とするライン型加熱体の構造。1. An elongated insulating substrate, a heating resistor pattern formed on the insulating substrate so as to extend in the longitudinal direction thereof, connection terminal electrodes for both ends of the heating resistor pattern, and the insulating substrate having the above-mentioned structure. In a line type heating element comprising a conductor pattern formed so as to extend in the direction of the other connecting terminal electrode portion of the both connecting terminal electrode portions from the intermediate electrode portion connected to the middle portion of the heating resistance pattern,
In the insulating substrate, a portion between the intermediate electrode portion and one of the connecting terminal electrode portions is formed with a discard pattern made of the same material as the conductor pattern in a discontinuous state with these. Structure of line type heating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4168859A JP3065793B2 (en) | 1992-06-26 | 1992-06-26 | Line type heating element structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4168859A JP3065793B2 (en) | 1992-06-26 | 1992-06-26 | Line type heating element structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0611981A true JPH0611981A (en) | 1994-01-21 |
| JP3065793B2 JP3065793B2 (en) | 2000-07-17 |
Family
ID=15875888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4168859A Expired - Fee Related JP3065793B2 (en) | 1992-06-26 | 1992-06-26 | Line type heating element structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3065793B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007311135A (en) * | 2006-05-17 | 2007-11-29 | Harison Toshiba Lighting Corp | Heater, heating unit, and image forming device |
| JP2007311136A (en) * | 2006-05-17 | 2007-11-29 | Harison Toshiba Lighting Corp | Heater, heating unit, and image forming device |
| JP2010054846A (en) | 2008-08-28 | 2010-03-11 | Sharp Corp | Resistance heating body, fixing unit and image forming apparatus provided with the same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5309768B2 (en) * | 2008-07-31 | 2013-10-09 | オムロン株式会社 | Heater mounting structure |
| KR101739798B1 (en) * | 2015-12-11 | 2017-05-26 | (주)천일 | gravure carrier |
-
1992
- 1992-06-26 JP JP4168859A patent/JP3065793B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007311135A (en) * | 2006-05-17 | 2007-11-29 | Harison Toshiba Lighting Corp | Heater, heating unit, and image forming device |
| JP2007311136A (en) * | 2006-05-17 | 2007-11-29 | Harison Toshiba Lighting Corp | Heater, heating unit, and image forming device |
| JP2010054846A (en) | 2008-08-28 | 2010-03-11 | Sharp Corp | Resistance heating body, fixing unit and image forming apparatus provided with the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3065793B2 (en) | 2000-07-17 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |