JP3280860B2 - Lightning-resistant structure of transmission control device - Google Patents
Lightning-resistant structure of transmission control deviceInfo
- Publication number
- JP3280860B2 JP3280860B2 JP19789096A JP19789096A JP3280860B2 JP 3280860 B2 JP3280860 B2 JP 3280860B2 JP 19789096 A JP19789096 A JP 19789096A JP 19789096 A JP19789096 A JP 19789096A JP 3280860 B2 JP3280860 B2 JP 3280860B2
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- telephone line
- terminal device
- circuit board
- printed circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電話回線に接続し
てデータ伝送を行う伝送制御装置、例えば電話回線を利
用した自動検針システムに使用され、端末装置としてガ
ス、水道、電気等の使用量を計測するメータ等が接続さ
れる伝送制御装置の耐雷性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 transmission control device for transmitting data by connecting to a telephone line, for example, an automatic meter reading system using a telephone line. The present invention relates to a lightning-resistant structure of a transmission control device to which a meter or the like for measuring the light transmission is connected.
【０００２】[0002]
【従来の技術】まず、電話回線を利用した自動検針シス
テムの耐雷性構造について、図１２を用いて説明する。
電話回線を利用した自動検針システムは、ガスメータ３
１、水道メータ３２等からなる端末装置が伝送制御装置
３３に接続され、伝送制御装置３３から電話回線３４を
介して図示しないセンタ装置に接続されている。このよ
うな自動検針システムにおいて、落雷時には、電話回線
３４と大地間にかなりの電圧が発生する。一方、伝送制
御装置３３に接続されるガスメータ３１や水道メータ３
２等からなる端末装置は金属で形成されており、各メー
タ３１，３２への配管等も金属製であるため、メータ３
１，３２は大地とほぼ同電位になっており、さらにメー
タ３１，３２内に組み込まれる電子回路部分も金属製の
ハウジングとの電気的絶縁をとるのが困難な状況にあ
り、メータ３１，３２側の電子回路もほぼ同電位になら
ざるを得ない状況になっている。このため、電話回線３
４と大地間の電気的絶縁は、伝送制御装置３３でとられ
ることが多く、端末装置と伝送制御装置３３間の通信イ
ンタフェースとして光結合素子、例えばフォトカプラ３
５や、フォトダイオードとフォトトランジスタを使用し
て電気的に絶縁し、これにより、端末装置を落雷から保
護している。2. Description of the Related Art First, a lightning-resistant structure of an automatic meter reading system using a telephone line will be described with reference to FIG.
An automatic meter reading system using a telephone line is a gas meter 3
1. A terminal device including a water meter 32 and the like is connected to a transmission control device 33, and is connected from the transmission control device 33 to a center device (not shown) via a telephone line. In such an automatic meter reading system, when a lightning strike occurs, a considerable voltage is generated between the telephone line 34 and the ground. On the other hand, the gas meter 31 or the water meter 3 connected to the transmission control device 33
2 is made of metal, and the pipes to the meters 31 and 32 are also made of metal.
1 and 32 have substantially the same electric potential as the ground, and furthermore, it is difficult to electrically insulate the electronic circuit parts incorporated in the meters 31 and 32 from the metal housing. The electronic circuit on the side has to be almost at the same potential. Therefore, telephone line 3
The electrical insulation between the terminal 4 and the ground is often taken by the transmission control device 33, and an optical coupling element such as a photocoupler 3 serves as a communication interface between the terminal device and the transmission control device 33.
5, and a photodiode and a phototransistor are used to electrically insulate the terminal device from lightning.
【０００３】このように、端末装置と伝送制御装置間に
光結合素子を使用して通信を行うとともに電話回線と大
地間の電気的絶縁をする場合、その電気的絶縁性（耐雷
性能）は、光結合素子の光結合間の耐雷性又は伝送制御
装置内で電気的に絶縁した回路の導体間の沿面距離によ
る耐雷性に依存する。そして、近年、光結合素子の光結
合間の耐雷性が向上し、伝送制御装置の小型化により、
伝送制御装置の耐雷性は、伝送制御装置内の電話回線側
と端末装置側の導体間の沿面距離に特に依存するように
なってきた。伝送制御装置内の電話回線側と端末装置側
の導体間の最小沿面距離は、絶縁材料からなる端子部の
電話回線結線部と端末装置結線部間又は端子部とプリン
ト基板部を接続する部分の電話回線側と端末装置側間の
どちらかになる場合が多い。As described above, when communication is performed between a terminal device and a transmission control device using an optical coupling element and electrical insulation between a telephone line and the ground is performed, the electrical insulation (lightning resistance performance) is as follows. It depends on the lightning resistance between the optical couplings of the optical coupling elements or the lightning resistance due to the creepage distance between the conductors of the circuit electrically isolated in the transmission control device. In recent years, lightning resistance between optical couplings of optical coupling elements has been improved and transmission control devices have been downsized.
The lightning resistance of the transmission control device has been particularly dependent on the creepage distance between conductors on the telephone line side and the terminal device side in the transmission control device. The minimum creepage distance between the conductor on the telephone line side and the conductor on the terminal device side in the transmission control device is the distance between the telephone line connection portion of the terminal portion made of an insulating material and the terminal device connection portion or the portion connecting the terminal portion and the printed circuit board portion. Often it is either the telephone line side or the terminal side.
【０００４】次に、従来の伝送制御装置の耐雷性構造例
を、図１３乃至図１７を用いて説明する。図１３は、伝
送制御装置の筐体構成を示している。伝送制御機能を構
成する電子回路部品が装着されたプリント基板１０と、
電話回線３４及び端末装置からの導線３７が結線接続さ
れ、その結線部がプリント基板１０に接続される端子部
３６と、プリント基板１０及び端子部３６を嵌め込むケ
ース部１１と、ケース部１１に着脱され、端子部３６の
結線部分を保護するカバー部３８により構成されてい
る。カバー部３８はねじ１２によりケース部１１に固定
されるようになっている。図１４は端子部３６の構成を
示し、図１５はケース部１１の構成を示し、図１６はカ
バー部３８の構成を示し、図１７は端子部３６とプリン
ト基板１０の接続された構成を示している。端子部３６
は基体が絶縁材料からなり、結線接続部は金属であるね
じ５、取付け金具６及びターミナル７からなり、ターミ
ナル７がプリント基板１０の導体部に半田付け３９によ
り接続されている。従来の伝送制御装置の耐雷性構造に
おいては、図１７に示すように、端子部３６の電話回線
結線部２と端末装置結線部３間の沿面距離ａ及び端子部
３６のターミナル７とプリント基板１０の導体部とを接
続した端子部接続部分の電話回線側２ａと端末装置側３
ａ間の沿面距離ｃを離した構成により、耐雷性能を確保
している。Next, an example of a lightning-resistant structure of a conventional transmission control device will be described with reference to FIGS. FIG. 13 illustrates a housing configuration of the transmission control device. A printed circuit board 10 on which electronic circuit components constituting a transmission control function are mounted,
The telephone line 34 and the conducting wire 37 from the terminal device are connected and connected, and the connection portion is connected to the terminal portion 36 connected to the printed circuit board 10, the case portion 11 in which the printed circuit board 10 and the terminal portion 36 are fitted, and the case portion 11. It is constituted by a cover part 38 which is attached and detached and protects the connection part of the terminal part 36. The cover section 38 is fixed to the case section 11 by screws 12. 14 shows the configuration of the terminal section 36, FIG. 15 shows the configuration of the case section 11, FIG. 16 shows the configuration of the cover section 38, and FIG. 17 shows the configuration in which the terminal section 36 and the printed circuit board 10 are connected. ing. Terminal 36
The base is made of an insulating material, and the connection connection part is made up of a metal screw 5, a mounting bracket 6, and a terminal 7, and the terminal 7 is connected to a conductor of the printed circuit board 10 by soldering 39. In the lightning-resistant structure of the conventional transmission control device, as shown in FIG. 17, the creepage distance a between the telephone line connection portion 2 and the terminal device connection portion 3 of the terminal portion 36 and the terminal 7 of the terminal portion 36 and the printed circuit board 10 2a and terminal device 3 of the terminal connection portion connecting the conductor portions of
The structure in which the creepage distance c between “a” is separated ensures lightning resistance.
【０００５】[0005]
【発明が解決しようとする課題】このようなシステムに
使用される伝送制御装置は、一般家庭の住宅壁面に設置
されたり、又はガスメータ本体に取り付けられるので、
美観上の問題や取付け場所の制約により、さらなる小型
化及び耐雷性の向上が要求されている。しかしながら、
従来の伝送制御装置にあっては、電話回線側と端末装置
側間の直線的な沿面距離を確保しなければ耐雷性を確保
できず、さらなる小型化や耐雷性の向上を望むのは難し
いという問題点があった。The transmission control device used in such a system is installed on the wall of a house in a general household or mounted on the gas meter body.
Due to aesthetic problems and restrictions on installation locations, further miniaturization and improvement in lightning resistance are required. However,
With conventional transmission control equipment, it is difficult to secure lightning resistance without securing a straight creepage distance between the telephone line side and terminal equipment side, and it is difficult to expect further miniaturization and improvement in lightning resistance. There was a problem.
【０００６】本発明は、上記に鑑みてなされたもので、
耐雷性を向上させ、また容易な構造で小型化が可能な伝
送制御装置の耐雷性構造を提供することを目的とする。[0006] The present invention has been made in view of the above,
It is an object of the present invention to provide a lightning-resistant structure of a transmission control device which has improved lightning resistance and can be downsized with an easy structure.
【０００７】[0007]
【課題を解決するための手段】上記課題を解決するため
に、請求項１記載の発明は、電話回線と端末装置との間
に接続される伝送制御装置の耐雷性構造であって、伝送
制御機能を構成する電子回路部品を装着したプリント基
板と、基体が絶縁材料からなり前記電話回線が結線接続
される電話回線結線部と前記端末装置が結線接続される
端末装置結線部とが前記プリント基板に接続された端子
部と、前記プリント基板及び前記端子部を収納する絶縁
材料製のケース部とを有し、前記プリント基板の端子部
接続部分における前記電話回線側と前記端末装置側との
間にスリットを形成し、前記端子部には前記スリットに
挟み込まれる凸部分を形成してなることを特徴とする。
この構成により、端子部における電話回線結線部と端末
装置結線部間の沿面距離が端子部の凸部分を回り込むこ
とで長くなる。According to one aspect of the present invention, there is provided a lightning-resistant structure of a transmission control device connected between a telephone line and a terminal device. A printed circuit board on which electronic circuit components constituting a function are mounted, a telephone line connection portion where the base is made of an insulating material and the telephone line is connected and connected, and a terminal device connection portion where the terminal device is connected and connected is the printed circuit board. And a case portion made of an insulating material for housing the printed circuit board and the terminal portion, between the telephone line side and the terminal device side in a terminal portion connection portion of the printed circuit board. A slit is formed in the terminal portion, and a convex portion sandwiched between the slits is formed in the terminal portion.
According to this configuration, the creeping distance between the telephone line connection portion and the terminal device connection portion in the terminal portion is increased by going around the convex portion of the terminal portion.
【０００８】請求項２の発明は、電話回線と端末装置と
の間に接続される伝送制御装置の耐雷性構造であって、
伝送制御機能を構成する電子回路部品を装着したプリン
ト基板と、基体が絶縁材料からなり前記電話回線が結線
接続される電話回線結線部と前記端末装置が結線接続さ
れる端末装置結線部との間の前記基体に凹部分が形成さ
れ当該両結線部が前記プリント基板に接続された端子部
と、前記プリント基板及び前記端子部を収納する絶縁材
料製のケース部と、前記ケース部に着脱され前記端子部
を保護するとともに装着時に前記凹部分に挟まる凸部分
が形成された絶縁材料製のカバー部とを有し、前記プリ
ント基板の端子部接続部分における前記電話回線側と前
記端末装置側との間にスリットを形成し、前記端子部に
は前記スリットに挟み込まれる凸部分を形成してなるこ
とを特徴とする。この構成によりプリント基板の端子部
接続部分における電話回線側と端末装置側間の沿面距離
が、ケース部の凸部分及び端子部の凸部分を回り込むこ
とで長くなる。A second aspect of the present invention is a lightning-resistant structure of a transmission control device connected between a telephone line and a terminal device,
Between a printed circuit board on which electronic circuit components constituting a transmission control function are mounted, a telephone line connection portion where the base is made of an insulating material and the telephone line is connected and connected, and a terminal device connection portion where the terminal device is connected and connected. A terminal portion in which a concave portion is formed in the base body, and the two connection portions are connected to the printed board; a case portion made of an insulating material for housing the printed board and the terminal portion; A cover portion made of an insulating material having a convex portion formed between the concave portion and the terminal portion when protecting the terminal portion when the terminal portion is connected to the terminal line side and the terminal device side in the terminal portion connection portion of the printed circuit board. A slit is formed between the slits, and the terminal portion is formed with a convex portion sandwiched between the slits. With this configuration, the creeping distance between the telephone line side and the terminal device side in the terminal connection portion of the printed circuit board is increased by going around the convex portion of the case portion and the convex portion of the terminal portion.
【０００９】請求項３の発明は、電話回線と端末装置と
の間に接続される伝送制御装置の耐雷性構造であって、
伝送制御機能を構成する電子回路部品を装着したプリン
ト基板と、基体が絶縁材料からなり前記電話回線が結線
接続されるとともに前記プリント基板に接続された電話
回線結線部と、基体が絶縁材料からなり前記端末装置が
結線接続されるとともに前記プリント基板に接続された
端末装置結線部と、前記プリント基板、前記電話回線結
線部および前記端末装置結線部を収納する絶縁材料製の
ケース部とを有し、前記プリント基板の前記電話回線結
線部側と前記端末装置結線部側との間にスリットを形成
するとともに、このスリットに挟み込まれる絶縁部材を
有することを特徴とする。この構成により、電話回線結
線と端末装置結線部側間の沿面距離が、スリットに挟み
込まれる絶縁部材を回り込むことで長くなる。According to a third aspect of the present invention, there is provided a lightning-resistant structure of a transmission control device connected between a telephone line and a terminal device,
A printed circuit board on which electronic circuit components constituting a transmission control function are mounted, a telephone line connection portion connected to the printed circuit board while the base is made of an insulating material, and the base is made of an insulating material. The terminal device is connected and connected, and has a terminal device connection portion connected to the printed circuit board, and the printed circuit board, the telephone line connection portion and a case portion made of an insulating material for housing the terminal device connection portion. A slit is formed between the telephone line connection portion side of the printed circuit board and the terminal device connection portion side, and an insulating member is sandwiched between the slits. With this configuration, the creepage distance between the telephone line connection and the terminal device connection portion side is increased by wrapping around the insulating member sandwiched between the slits.
【００１０】請求項４の発明は、前記絶縁部材は前記電
話回線結線部及び前記端末装置結線部に形成されたこと
を特徴とする。この構成により、スリットに挟み込まれ
る絶縁部材によって電話回線結線部と端末装置結線部間
の沿面距離を効率よく長くすることが可能となる。The invention according to a fourth aspect is characterized in that the insulating member is formed on the telephone line connection portion and the terminal device connection portion. With this configuration, the creepage distance between the telephone line connection portion and the terminal device connection portion can be efficiently increased by the insulating member sandwiched between the slits.
【００１１】請求項５の発明は、前記絶縁部材は前記ケ
ースに形成されたことを特徴とする。この構成により、
沿面距離を長くする絶縁部材を効率よく設けることが可
能となる。この構成により、沿面距離を長くする絶縁部
材を効率よく設けることが可能となる。The invention according to claim 5 is characterized in that the insulating member is formed in the case. With this configuration,
It is possible to efficiently provide an insulating member for increasing the creepage distance. With this configuration, it is possible to efficiently provide an insulating member that increases the creepage distance.
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１３】図１乃至図３は、本発明の第１の実施の形
態を示す図である。なお、図１乃至図３及び後述の各実
施の形態を示す図において、前記図１３乃至図１７にお
ける部材及び部位等と同一乃至均等のものは、前記と同
一符号を以って示す。本実施の形態においては、図２に
示すように、基体が絶縁材料からなる端子部１における
電話回線結線部２と端末装置結線部３との間に凹部分４
が形成されている。電話回線結線部２及び端末装置結線
部３は、従来の端子部と同様に、ねじ５、取付け金具６
及びターミナル７からなり、ねじ止めにより結線できる
ようになっている。一方、図３に示すように、絶縁材料
製のカバー部８には、ケース部１１への装着時に上記の
凹部分４に挟まる凸部分９が形成されている。図１は、
プリント基板１０と端子部１とが、接続された状態でケ
ース部１１に収納され、カバー部８がケース部１１に装
着されてねじ１２により固定された状態を示している。
このように、カバー部８がケース部１１に装着された状
態で、カバー部８の凸部分９が端子部１の凹部分４に挟
み込まれた形となる。したがって、端子部１における電
話回線結線部２と端末装置結線部３間の沿面距離１３
は、図１（ａ）のＡ部拡大図である同図（ｄ）に示すよ
うに、カバー部８の凸部分９を回り込む形となる。この
ため、電話回線結線部２と端末装置結線部３間の沿面距
離１３は、従来の電話回線結線部２と端末装置結線部３
間の沿面距離ａに対し、カバー部８の凸部分９を回り込
んだ分（２×ｂ）だけ長くなる。FIG. 1 to FIG. 3 are views showing a first embodiment of the present invention. In FIGS. 1 to 3 and the drawings showing the respective embodiments to be described later, the same or equivalent parts as those in FIGS. 13 to 17 are denoted by the same reference numerals. In the present embodiment, as shown in FIG. 2, a concave portion 4 is provided between a telephone line connection portion 2 and a terminal device connection portion 3 in a terminal portion 1 whose base is made of an insulating material.
Are formed. The telephone line connection portion 2 and the terminal device connection portion 3 are composed of screws 5 and mounting brackets 6 in the same manner as the conventional terminal portion.
And a terminal 7, and can be connected by screwing. On the other hand, as shown in FIG. 3, the cover portion 8 made of an insulating material has a convex portion 9 sandwiched between the concave portions 4 when the cover portion 8 is attached to the case portion 11. FIG.
The figure shows a state in which the printed circuit board 10 and the terminal unit 1 are housed in the case unit 11 in a connected state, and the cover unit 8 is mounted on the case unit 11 and fixed by the screws 12.
In this way, with the cover 8 attached to the case 11, the convex portion 9 of the cover 8 is sandwiched between the concave portions 4 of the terminal 1. Therefore, the creepage distance 13 between the telephone line connection 2 and the terminal device connection 3 in the terminal 1 is
As shown in FIG. 1 (d), which is an enlarged view of the portion A in FIG. 1 (a), the shape goes around the convex portion 9 of the cover 8. Therefore, the creepage distance 13 between the telephone line connection unit 2 and the terminal device connection unit 3 is the same as that of the conventional telephone line connection unit 2 and the terminal device connection unit 3.
It is longer than the creepage distance a by an amount (2 × b) that goes around the convex portion 9 of the cover portion 8.
【００１４】上述したように、本実施の形態によれば、
電話回線結線部２と端末装置結線部３間の沿面距離１３
が長くなり、端子部結線接続部分の耐雷性を向上させる
ことができる。また、電話回線結線部２と端末装置結線
部３間の距離をカバー部８の凸部分９を回り込んだ分
（２×ｂ）だけ狭めても、従来の電話回線結線部と端末
装置結線部間の沿面距離を確保することができるため、
端子部結線接続部分の耐雷性能を劣化させずに小型化が
可能となる。As described above, according to the present embodiment,
Creepage distance 13 between telephone line connection 2 and terminal device connection 3
And the lightning resistance of the terminal connection connection portion can be improved. Also, even if the distance between the telephone line connection part 2 and the terminal device connection part 3 is reduced by the amount (2 × b) that goes around the convex part 9 of the cover part 8, the conventional telephone line connection part and terminal device connection part Creepage distance between them,
It is possible to reduce the size without deteriorating the lightning resistance of the terminal connection connection portion.
【００１５】図４及び図５には、本発明の第２の実施の
形態を示す。図４（ｂ）は、同図（ａ）のＡ視図、図４
（ｃ）は、同図（ｂ）のＢ部拡大図である。本実施の形
態では、図４に示すように、プリント基板１６には、端
子部接続部分の電話回線側２ａと端末装置側３ａの間に
スリット１７が形成されている。一方、図５に示すよう
に、端末部１４には、前記図２に示した端子部の構造に
加えてさらに、プリント基板１６のスリット１７に挟み
込む絶縁材料からなる凸部分１５が形成されている。図
４に示すように、端子部１４とプリント基板１６を半田
付けにより接続して組み付けると、プリント基板１６の
端子部接続部分における電話回線側２ａと端末装置側３
ａ間のスリット１７に絶縁材料からなる端子部１４の凸
部分１５が挟み込まれるため、電話回線側２ａと端末装
置側３ａ間の沿面距離１８は、図４（ｄ）に示すよう
に、端子部１４の凸部分１５を回り込む形となる。この
ため、電話回線側２ａと端末装置側３ａ間の沿面距離１
８は、［√（ｄ2 ＋ｇ2 ）＋ｅ＋√（ｆ2 ＋ｇ2 ）］と
なり、従来の電話回線側と端末装置側間の沿面距離ｃに
対して、［（√（ｄ2 ＋ｇ2 ）−ｄ）＋（√（ｆ2 ＋ｇ
2 ）−ｆ）］だけ長くなる。なお、カバー部等の他の部
品の構成は、第１の実施の形態のものと同様である。FIGS. 4 and 5 show a second embodiment of the present invention. FIG. 4B is a view as viewed from A in FIG.
FIG. 3C is an enlarged view of a portion B in FIG. In the present embodiment, as shown in FIG. 4, a slit 17 is formed in the printed circuit board 16 between the telephone line side 2a and the terminal device side 3a of the terminal portion connection portion. On the other hand, as shown in FIG. 5, in addition to the structure of the terminal portion shown in FIG. 2, the terminal portion 14 is further formed with a convex portion 15 made of an insulating material sandwiched between the slits 17 of the printed board 16. . As shown in FIG. 4, when the terminal portion 14 and the printed board 16 are connected by soldering and assembled, the telephone line side 2a and the terminal device side 3 in the terminal portion connection portion of the printed board 16 are connected.
4A, the creepage distance 18 between the telephone line side 2a and the terminal device side 3a is reduced, as shown in FIG. 4D. 14 is formed around the convex portion 15. Therefore, the creepage distance between the telephone line side 2a and the terminal device side 3a is 1
8 is [√ (d 2 + g 2 ) + e + √ (f 2 + g 2 )], which is [(√ (d 2 + g 2 ) −) with respect to the conventional creepage distance c between the telephone line side and the terminal device side. d) + (√ (f 2 + g
2 ) -f)]. The configuration of the other parts such as the cover is the same as that of the first embodiment.
【００１６】上述したように、本実施の形態によれば、
第１の実施の形態の効果に加えてさらに、プリント基板
１６の端子部接続部分における電話回線側２ａと端末装
置側３ａ間の沿面距離１８が長くなり、耐雷性を一層向
上させることができる。As described above, according to the present embodiment,
In addition to the effects of the first embodiment, the creeping distance 18 between the telephone line side 2a and the terminal device side 3a in the terminal connection portion of the printed circuit board 16 is further increased, and the lightning resistance can be further improved.
【００１７】図６及び図７には、本発明の第３の実施の
形態を示す。本実施の形態では、プリント基板１６は、
第２の実施の形態のものと同様の構成のものが用いら
れ、端子部接続部分の電話回線側２ａと端末装置側３ａ
の間にスリットが形成されている。そして、図７に示す
ように、このプリント基板１６のスリットに挟み込む絶
縁材料からなる凸部分２０が、ケース部１９の底面部に
形成されている。図６に示すように、プリント基板１６
と端子部１とを、接続した状態でケース部１９に組み込
むと、プリント基板１６の端子部接続部分における電話
回線側２ａと端末装置側３ａ間のスリットに絶縁材料か
らなるケース部１９の凸部分２０が挟み込まれるため、
電話回線側２ａと端末装置側３ａ間の沿面距離２１は、
ケース部１９の凸部分２０を回り込む形となる。このた
め、電話回線側２ａと端末装置側３ａ間の沿面距離２１
は、従来の電話回線側と端末装置側間の沿面距離ｃより
長くなる。なお、端子部１及びカバー部等の他の部品の
構成は、第１の実施の形態のものと同様である。FIGS. 6 and 7 show a third embodiment of the present invention. In the present embodiment, the printed circuit board 16
The same configuration as that of the second embodiment is used, and the telephone line side 2a and the terminal device side 3a of the terminal connection portion are used.
A slit is formed between them. Then, as shown in FIG. 7, a convex portion 20 made of an insulating material sandwiched between the slits of the printed board 16 is formed on the bottom surface of the case portion 19. As shown in FIG.
When the terminal portion 1 and the terminal portion 1 are connected to each other and assembled into the case portion 19, the slit between the telephone line side 2a and the terminal device side 3a in the terminal portion connection portion of the printed circuit board 16 has a convex portion of the case portion 19 made of an insulating material. Because 20 is sandwiched,
The creepage distance 21 between the telephone line side 2a and the terminal device side 3a is:
The shape turns around the convex portion 20 of the case portion 19. For this reason, the creepage distance 21 between the telephone line side 2a and the terminal device side 3a
Is longer than the conventional creepage distance c between the telephone line side and the terminal device side. The other components such as the terminal 1 and the cover are the same as those in the first embodiment.
【００１８】上述したように、本実施の形態によれば、
第１の実施の形態の効果に加えてさらに、プリント基板
１６の端子部接続部分における電話回線側２ａと端末装
置側３ａ間の沿面距離２１が長くなり、耐雷性を一層向
上させることができる。As described above, according to the present embodiment,
In addition to the effects of the first embodiment, the creeping distance 21 between the telephone line side 2a and the terminal device side 3a at the terminal connection portion of the printed circuit board 16 is further increased, and the lightning resistance can be further improved.
【００１９】図８及び図９には、本発明の第４の実施の
形態を示す。本実施の形態は、前記第２の実施の形態の
変形例に相当し、ケース部の構造を変形したものであ
る。図９に示すように、ケース部２２の底面部には、前
記図５に示した端子部１４の凸部分１５を挟み込む絶縁
材料からなる凹部分２３ａ，２３ｂが形成されている。
図８に示すように、プリント基板１６と端子部１４と
を、接続した状態でケース部２２に組み込むと、プリン
ト基板１６の端子部接続部分における電話回線側２ａと
端末装置側３ａ間のスリットに挟み込まれた端子部１４
の凸部分１５が、さらにケース部２２の凹部分２３ａ，
２３ｂで挟み込まれた形となる。このため、電話回線側
２ａと端末装置側３ａ間の沿面距離２４は、（ｄ＋２×
ｇ＋ｅ＋ｆ＝ｃ＋２×ｇ）となり、従来の電話回線側と
端末装置側間の沿面距離ｃに対して、（２×ｇ）だけ長
くなり、第２の実施の形態における沿面距離よりも、さ
らに長くなる。なお、端子部１４及びプリント基板１６
部等の他の部品の構成は、第２の実施の形態のものと同
様である。FIGS. 8 and 9 show a fourth embodiment of the present invention. This embodiment corresponds to a modification of the second embodiment, in which the structure of the case portion is modified. As shown in FIG. 9, concave portions 23a and 23b made of an insulating material sandwiching the convex portion 15 of the terminal portion 14 shown in FIG. 5 are formed on the bottom surface of the case portion 22.
As shown in FIG. 8, when the printed circuit board 16 and the terminal section 14 are connected to each other and assembled into the case section 22, the slit between the telephone line side 2a and the terminal apparatus side 3a in the terminal section connection portion of the printed circuit board 16 is formed. Terminal part 14 sandwiched
Of the case portion 22 further has a concave portion 23a,
23b. Therefore, the creepage distance 24 between the telephone line side 2a and the terminal device side 3a is (d + 2 ×
g + e + f = c + 2 × g), which is (2 × g) longer than the conventional creepage distance c between the telephone line side and the terminal device side, and further longer than the creepage distance in the second embodiment. . The terminal portion 14 and the printed circuit board 16
The configuration of other parts such as the unit is the same as that of the second embodiment.
【００２０】上述したように、本実施の形態によれば、
第１の実施の形態の効果に加えてさらに、プリント基板
１６の端子部接続部分における電話回線側２ａと端末装
置側３ａ間の沿面距離２４が長くなり、耐雷性を一層向
上させることができる。As described above, according to the present embodiment,
In addition to the effects of the first embodiment, the creeping distance 24 between the telephone line side 2a and the terminal device side 3a at the terminal connecting portion of the printed circuit board 16 is further increased, and the lightning resistance can be further improved.
【００２１】図１０及び図１１には、本発明の第５の実
施の形態を示す。本実施の形態は、前記第３の実施の形
態の変形例に相当し、端子部の構造を変形したものであ
る。図１０に示すように、端子部２５には、前記図７に
示したケース部１９の凸部分２０を挟み込む絶縁材料か
らなる凹部分２６が形成されている。図１０に示すよう
に、プリント基板１６と端子部２５とを、接続した状態
でケース部１９に組み込むと、プリント基板１６の端子
部接続部分における電話回線側２ａと端末装置側３ａ間
に、端子部２５の凹部分２６及びケース部１９の凸部分
２０が挟み込まれた形となる。このため、電話回線側２
ａと端末装置側３ａ間の沿面距離２７は、［√（ｄ2 ＋
ｇ2 ）＋ｅ＋２ｈ＋√（ｆ2 ＋ｇ2 ）］となり、従来の
電話回線側と端末装置側間の沿面距離ｃに対して、
［（√（ｄ2 ＋ｇ2 ）−ｄ）＋（√（ｆ2 ＋ｇ2 ）−
ｆ）＋２ｈ］だけ長くなる。なお、ケース部１９等の他
の部品の構成は、第３の実施の形態のものと同様であ
る。FIGS. 10 and 11 show a fifth embodiment of the present invention. This embodiment corresponds to a modification of the third embodiment, and is a modification of the structure of the terminal portion. As shown in FIG. 10, the terminal portion 25 has a concave portion 26 made of an insulating material sandwiching the convex portion 20 of the case portion 19 shown in FIG. As shown in FIG. 10, when the printed circuit board 16 and the terminal portion 25 are connected to each other and incorporated into the case portion 19, the terminal is connected between the telephone line side 2a and the terminal device side 3a in the terminal portion connection portion of the printed circuit board 16. The concave portion 26 of the portion 25 and the convex portion 20 of the case portion 19 are sandwiched. Therefore, the telephone line side 2
c and the creepage distance 27 between the terminal device side 3a is [√ (d 2 +
g 2 ) + e + 2h + √ (f 2 + g 2 )], and the creepage distance c between the conventional telephone line side and the terminal device side is
[(√ (d 2 + g 2 ) −d) + (√ (f 2 + g 2 ) −
f) + 2h]. The configuration of the other parts such as the case 19 is the same as that of the third embodiment.
【００２２】上述したように、本実施の形態によれば、
第１の実施の形態の効果に加えてさらに、プリント基板
１６の端子部接続部分における電話回線側２ａと端末装
置側３ａ間の沿面距離２７が長くなり、耐雷性を一層向
上させることができる。As described above, according to the present embodiment,
In addition to the effects of the first embodiment, the creeping distance 27 between the telephone line side 2a and the terminal device side 3a in the terminal portion connection portion of the printed circuit board 16 is further increased, and the lightning resistance can be further improved.
【００２３】なお、上述の各実施の形態では、電話回線
及び端末装置の結線接続部分は、ねじ止めによる接続に
ついて説明したが、本発明は、結線接続方式については
限定しない。また、端子部とプリント基板の接続方式を
半田付け等による直接接続としているが、本発明は、端
子部とプリント基板の接続方式については限定せず、コ
ネクタ接続等による接続方式としてもよい。さらに、端
子部とケース部の固定方法、カバー部の装着方法につい
て本発明は限定しない。In each of the above embodiments, the connection of the telephone line and the terminal device by the screw connection has been described. However, the present invention is not limited to the connection method. Further, although the connection method between the terminal portion and the printed board is direct connection by soldering or the like, the present invention is not limited to the connection method between the terminal portion and the printed board, and may be a connection method such as connector connection. Further, the present invention is not limited to a method of fixing the terminal and the case, and a method of attaching the cover.
【００２４】[0024]
【発明の効果】以上説明したように、請求項１記載の発
明によれば、電話回線と端末装置との間に接続される伝
送制御装置の耐雷性構造であって、伝送制御機能を構成
する電子回路部品を装着したプリント基板と、基体が絶
縁材料からなり前記電話回線が結線接続される電話回線
結線部と前記端末装置が結線接続される端末装置結線部
とが前記プリント基板に接続された端子部と、前記プリ
ント基板及び前記端子部を収納する絶縁材料製のケース
部とを有し、前記プリント基板の端子部接続部分におけ
る前記電話回線側と前記端末装置側との間にスリットを
形成し、前記端子部には前記スリットに挟み込まれる凸
部分を形成してなる端子部における電話回線結線部と端
末装置結線部間の沿面距離が長くなって端子部結線接続
部分の耐雷性を向上させることができる。また、電話回
線結線部と端末装置結線部間の距離を狭めても、従来の
電話回線結線部と端末装置結線部間の沿面距離を確保す
ることができるので、端子部結線接続部分の耐雷性を劣
化させずに小型化が可能となる。As described above, according to the first aspect of the present invention, the transmission control device connected between the telephone line and the terminal device has a lightning-resistant structure, and constitutes a transmission control function. A printed circuit board on which an electronic circuit component is mounted, a telephone line connection portion where the base is made of an insulating material and the telephone line is connected and connected, and a terminal device connection portion where the terminal device is connected and connected are connected to the printed circuit board. A terminal portion, and a case portion made of an insulating material for accommodating the printed circuit board and the terminal portion; and forming a slit between the telephone line side and the terminal device side at a terminal portion connection portion of the printed circuit board. In the terminal portion, a creeping distance between the telephone line connection portion and the terminal device connection portion in the terminal portion formed with the convex portion sandwiched between the slits is increased, thereby improving the lightning resistance of the terminal portion connection connection portion. It can be. Also, even if the distance between the telephone line connection part and the terminal device connection part is reduced, the creepage distance between the conventional telephone line connection part and the terminal device connection part can be secured, so that the lightning resistance of the terminal part connection connection part can be secured. Can be reduced without deteriorating the size.
【００２５】請求項２記載の発明によれば、電話回線と
端末装置との間に接続される伝送制御装置の耐雷性構造
であって、伝送制御機能を構成する電子回路部品を装着
したプリント基板と、基体が絶縁材料からなり前記電話
回線が結線接続される電話回線結線部と前記端末装置が
結線接続される端末装置結線部との間の前記基体に凹部
分が形成され当該両結線部が前記プリント基板に接続さ
れた端子部と、前記プリント基板及び前記端子部を収納
する絶縁材料製のケース部と、前記ケース部に着脱され
前記端子部を保護するとともに装着時に前記凹部分に挟
まる凸部分が形成された絶縁材料製のカバー部とを有
し、前記プリント基板の端子部接続部分における前記電
話回線側と前記端末装置側との間にスリットを形成し、
前記端子部には前記スリットに挟み込まれる凸部分を形
成したため、プリント基板の端子部接続部分における電
話回線側と端末装置側間の沿面距離も長くなるので、耐
雷性を一層向上させることができ、また、耐雷性を劣化
させずに一層の小型化が可能となる。According to the second aspect of the present invention, there is provided a printed circuit board having a lightning-resistant structure of a transmission control device connected between a telephone line and a terminal device, wherein an electronic circuit component constituting a transmission control function is mounted. And a concave portion is formed in the base between the telephone line connection portion where the base is made of an insulating material and the telephone line is connected and the terminal device connection portion where the terminal device is connected and connected. A terminal portion connected to the printed circuit board, a case portion made of an insulating material that houses the printed circuit board and the terminal portion, and a projection that is attached to and detached from the case portion to protect the terminal portion and to be sandwiched by the concave portion during mounting. Having a cover portion made of an insulating material formed with a portion, forming a slit between the telephone line side and the terminal device side in the terminal portion connection portion of the printed circuit board,
Since the terminal portion has a convex portion sandwiched between the slits, the creepage distance between the telephone line side and the terminal device side in the terminal portion connection portion of the printed circuit board is also long, so that it is possible to further improve lightning resistance. Further, the size can be further reduced without deteriorating the lightning resistance.
【００２６】請求項３記載の発明によれば、電話回線と
端末装置との間に接続される伝送制御装置の耐雷性構造
であって、伝送制御機能を構成する電子回路部品を装着
したプリント基板と、基体が絶縁材料からなり前記電話
回線が結線接続されるとともに前記プリント基板に接続
された電話回線結線部と、基体が絶縁材料からなり前記
端末装置が結線接続されるとともに前記プリント基板に
接続された端末装置結線部と、前記プリント基板、前記
電話回線結線部および前記端末装置結線部を収納する絶
縁材料製のケース部とを有し、前記プリント基板の前記
電話回線結線部側と前記端末装置結線部側との間にスリ
ットを形成したため、請求項２記載の発明の効果とほぼ
同様の効果が得られる。According to the third aspect of the present invention, there is provided a printed circuit board having a lightning-resistant structure of a transmission control device connected between a telephone line and a terminal device, wherein an electronic circuit component constituting a transmission control function is mounted. And a telephone line connection portion wherein the base is made of an insulating material and the telephone line is connected and connected to the printed circuit board, and the base device is made of an insulating material and the terminal device is connected and connected to the printed circuit board. A terminal device connection portion, and a printed circuit board, a case portion made of an insulating material that houses the telephone line connection portion and the terminal device connection portion, and the telephone line connection portion side of the printed circuit board and the terminal. Since the slit is formed between the device and the device connection portion, substantially the same effect as the effect of the invention described in claim 2 can be obtained.
【００２７】請求項４の発明によれば、絶縁部材を、電
話回線結線部及び前記端末装置結線部に形成したため、
スリットに挟み込まれる絶縁部材によって電話回線結線
部と端末装置結線部の沿面距離を効率よく長くすること
が可能となる。According to the fourth aspect of the present invention, since the insulating member is formed on the telephone line connection portion and the terminal device connection portion,
The insulating member sandwiched between the slits makes it possible to efficiently increase the creepage distance between the telephone line connection portion and the terminal device connection portion.
【００２８】請求項５記載の発明によれば、絶縁部材を
前記ケースに形成したため、沿面距離を長くする絶縁部
材を効率よく設けることが可能となる。According to the fifth aspect of the present invention, since the insulating member is formed on the case, it is possible to efficiently provide the insulating member for increasing the creepage distance.
【図１】本発明に係る伝送制御装置の耐雷性構造の第１
の実施の形態を示す構成図である。FIG. 1 shows a first example of a lightning-resistant structure of a transmission control device according to the present invention.
FIG. 2 is a configuration diagram showing an embodiment.
【図２】上記第１の実施の形態における端子部の構成を
示す図である。FIG. 2 is a diagram showing a configuration of a terminal unit in the first embodiment.
【図３】上記第１の実施の形態におけるカバー部の構成
を示す図である。FIG. 3 is a diagram illustrating a configuration of a cover unit according to the first embodiment.
【図４】本発明の第２の実施の形態における端子部とプ
リント基板部の組付け状態を示す図である。FIG. 4 is a diagram showing an assembled state of a terminal unit and a printed circuit board unit according to a second embodiment of the present invention.
【図５】上記第２の実施の形態における端子部の構成を
示す図である。FIG. 5 is a diagram showing a configuration of a terminal unit in the second embodiment.
【図６】本発明の第３の実施の形態において端子部とプ
リント基板をケース部に組み込んだ状態を示す正面図で
ある。FIG. 6 is a front view showing a state where a terminal section and a printed circuit board are incorporated in a case section in a third embodiment of the present invention.
【図７】上記第３の実施の形態におけるケース部の構成
を示す図である。FIG. 7 is a diagram showing a configuration of a case section according to the third embodiment.
【図８】本発明の第４の実施の形態において端子部とプ
リント基板をケース部に組み込んだ状態を示す正面図で
ある。FIG. 8 is a front view showing a state where a terminal section and a printed circuit board are incorporated in a case section in a fourth embodiment of the present invention.
【図９】上記第４の実施の形態におけるケース部の構成
を示す図である。FIG. 9 is a diagram illustrating a configuration of a case section according to the fourth embodiment.
【図１０】本発明の第５の実施の形態において端子部と
プリント基板をケース部に組み込んだ状態を示す正面図
である。FIG. 10 is a front view showing a state where a terminal section and a printed circuit board are incorporated in a case section in a fifth embodiment of the present invention.
【図１１】上記第５の実施の形態における端子部の構成
を示す図である。FIG. 11 is a diagram showing a configuration of a terminal unit in the fifth embodiment.
【図１２】従来の電話回線を利用した自動検針システム
の耐雷性構造を示す図である。FIG. 12 is a diagram showing a lightning-resistant structure of a conventional automatic meter reading system using a telephone line.
【図１３】従来の伝送制御装置の筐体構成を示す図であ
る。FIG. 13 is a diagram illustrating a housing configuration of a conventional transmission control device.
【図１４】従来の伝送制御装置の端子部の構成を示す図
である。FIG. 14 is a diagram showing a configuration of a terminal unit of a conventional transmission control device.
【図１５】従来の伝送制御装置のケース部の構成を示す
図である。FIG. 15 is a diagram illustrating a configuration of a case unit of a conventional transmission control device.
【図１６】従来の伝送制御装置のカバー部の構成を示す
図である。FIG. 16 is a diagram illustrating a configuration of a cover unit of a conventional transmission control device.
【図１７】従来の伝送制御装置における端子部とプリン
ト基板部の耐雷性構造を示す図である。FIG. 17 is a diagram showing a lightning-resistant structure of a terminal portion and a printed circuit board portion in a conventional transmission control device.
１，１４，２５ 端子部 ２ 電話回線結線部 ２ａ 端子部接続部分の電話回線側 ３ 端末装置結線部 ３ａ 端子部接続部分の端末装置側 ４，２３ａ，２３ｂ，２６ 凹部分 ８ カバー部 ９，１５，２０ 凸部分 １０，１６ プリント基板 １１，１９，２２ ケース部 １３，１８，２１，２４，２７ 沿面距離 １７ スリット 1,14,25 Terminal 2 Telephone line connection 2a Telephone line side of terminal connection 3 Terminal device connection 3a Terminal side of terminal connection 4,23a, 23b, 26 Concave portion 8 Cover 9,15 , 20 Convex part 10, 16 Printed circuit board 11, 19, 22 Case part 13, 18, 21, 24, 27 Creepage distance 17 Slit
───────────────────────────────────────────────────── フロントページの続き (72)発明者 河合 利彦 神奈川県川崎市幸区柳町70番地 株式会 社東芝 柳町工場内 (72)発明者 平山 雄一 神奈川県川崎市幸区柳町70番地 株式会 社東芝 柳町工場内 (56)参考文献 特開 平９−120498（ＪＰ，Ａ) 特開 平８−250170（ＪＰ，Ａ) 実開 昭59−86682（ＪＰ，Ｕ) 実開 平７−42064（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01R 13/533 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toshihiko Kawai 70, Yanagimachi, Yuki-ku, Kawasaki City, Kanagawa Prefecture Inside the Yanagimachi Plant (72) Inventor Yuichi Hirayama 70, Yanagimachi, Yuki-ku, Kawasaki City, Kanagawa Prefecture Toshiba Corporation Yanagimachi Plant (56) References JP-A-9-120498 (JP, A) JP-A-8-250170 (JP, A) JP-A-59-86682 (JP, U) JP-A-7-42064 (JP, A) U) (58) Field surveyed (Int. Cl. 7 , DB name) H01R 13/533
Claims (5)
伝送制御装置の耐雷性構造であって、 伝送制御機能を構成する電子回路部品を装着したプリン
ト基板と、 基体が絶縁材料からなり前記電話回線が結線接続される
電話回線結線部と前記端末装置が結線接続される端末装
置結線部とが前記プリント基板に接続された端子部と、 前記プリント基板及び前記端子部を収納する絶縁材料製
のケース部とを有し、 前記プリント基板の端子部接続部分における前記電話回
線側と前記端末装置側との間にスリットを形成し、前記
端子部には前記スリットに挟み込まれる凸部分を形成し
てなることを特徴とする伝送制御装置の耐雷性構造。1. A lightning-resistant structure of a transmission control device connected between a telephone line and a terminal device, wherein a printed circuit board on which electronic circuit components constituting a transmission control function are mounted, and a base made of an insulating material. A terminal unit in which a telephone line connection unit to which the telephone line is connected and a terminal device connection unit to which the terminal device is connected and connected are connected to the printed circuit board; and an insulating material for housing the printed circuit board and the terminal unit. And a slit portion is formed between the telephone line side and the terminal device side in the terminal portion connection portion of the printed circuit board, and the terminal portion has a convex portion sandwiched between the slits. A lightning-resistant structure of a transmission control device, characterized in that:
伝送制御装置の耐雷性構造であって、 伝送制御機能を構成する電子回路部品を装着したプリン
ト基板と、 基体が絶縁材料からなり前記電話回線が結線接続される
電話回線結線部と前記端末装置が結線接続される端末装
置結線部との間の前記基体に凹部分が形成され当該両結
線部が前記プリント基板に接続された端子部と、 前記プリント基板及び前記端子部を収納する絶縁材料製
のケース部と、 前記ケース部に着脱され前記端子部を保護するとともに
装着時に前記凹部分に挟まる凸部分が形成された絶縁材
料製のカバー部とを有し、 前記プリント基板の端子部接続部分における前記電話回
線側と前記端末装置側との間にスリットを形成し、前記
端子部には前記スリットに挟み込まれる凸部分を形成し
てなることを特徴とする伝送制御装置の耐雷性構造。2. A lightning-resistant structure of a transmission control device connected between a telephone line and a terminal device, wherein the printed circuit board on which an electronic circuit component constituting a transmission control function is mounted, and a base made of an insulating material. A terminal in which a concave portion is formed in the base between a telephone line connection portion where the telephone line is connected and a terminal device connection portion where the terminal device is connected and connected, and the two connection portions are connected to the printed circuit board. Part, a case part made of an insulating material for accommodating the printed circuit board and the terminal part, and a part made of an insulating material formed on the case part to be attached to and detached from the case part, to protect the terminal part, and to have a convex part sandwiched by the concave part at the time of mounting. A slit is formed between the telephone line side and the terminal device side in a terminal portion connection portion of the printed circuit board, and the terminal portion has a projection interposed between the slits. Lightning structure of the transmission control device, characterized in that by forming a minute.
伝送制御装置の耐雷性構造であって、 伝送制御機能を構成する電子回路部品を装着したプリン
ト基板と、 基体が絶縁材料からなり前記電話回線が結線接続される
とともに前記プリント基板に接続された電話回線結線部
と、 基体が絶縁材料からなり前記端末装置が結線接続される
とともに前記プリント基板に接続された端末装置結線部
と、 前記プリント基板、前記電話回線結線部および前記端末
装置結線部を収納する絶縁材料製のケース部とを有し、 前記プリント基板の前記電話回線結線部側と前記端末装
置結線部側との間にスリットを形成するとともに、この
スリットに挟み込まれる絶縁部材を有することを特徴と
する伝送制御装置の耐雷性構造。3. A lightning-resistant structure of a transmission control device connected between a telephone line and a terminal device, wherein the printed circuit board on which an electronic circuit component constituting a transmission control function is mounted, and a base made of an insulating material. A telephone line connection portion connected to the printed circuit board while the telephone line is connected, and a terminal device connection portion connected to the printed circuit board while the base device is made of an insulating material and the terminal device is connected. The printed circuit board, having a case portion made of an insulating material that houses the telephone line connection portion and the terminal device connection portion, between the telephone line connection portion side and the terminal device connection portion side of the printed circuit board. A lightning-resistant structure for a transmission control device, comprising a slit and an insulating member sandwiched between the slits.
前記端末装置結線部に形成されたことを特徴とする請求
項３記載の伝送制御装置の耐雷性構造。4. The lightning-resistant structure of a transmission control device according to claim 3, wherein said insulating member is formed on said telephone line connection portion and said terminal device connection portion.
ことを特徴とする請求項３記載の伝送制御装置の耐雷性
構造。5. The lightning-resistant structure of a transmission control device according to claim 3, wherein said insulating member is formed in said case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19789096A JP3280860B2 (en) | 1996-07-26 | 1996-07-26 | Lightning-resistant structure of transmission control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19789096A JP3280860B2 (en) | 1996-07-26 | 1996-07-26 | Lightning-resistant structure of transmission control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1041000A JPH1041000A (en) | 1998-02-13 |
| JP3280860B2 true JP3280860B2 (en) | 2002-05-13 |
Family
ID=16382002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19789096A Expired - Lifetime JP3280860B2 (en) | 1996-07-26 | 1996-07-26 | Lightning-resistant structure of transmission control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3280860B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021165667A (en) * | 2020-04-07 | 2021-10-14 | 大崎電気工業株式会社 | Watt-hour meter |
-
1996
- 1996-07-26 JP JP19789096A patent/JP3280860B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1041000A (en) | 1998-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3218947U (en) | Filtering electrical connector | |
| JPH10154885A (en) | Electric device, such as relay for network protective device provided with printed circuit board seal | |
| JPH0676894A (en) | Connector | |
| CN100367635C (en) | Motor with coder | |
| JP3280860B2 (en) | Lightning-resistant structure of transmission control device | |
| US7697708B2 (en) | Condenser microphone | |
| TW304312B (en) | ||
| CA2301323A1 (en) | On-glass antenna system | |
| CN109193165B (en) | Flexible micro antenna structure | |
| JPH028384Y2 (en) | ||
| JP3257202B2 (en) | Earth structure of shielded wire | |
| JP4621466B2 (en) | Tuner device | |
| JP3470667B2 (en) | Electronic devices and connectors used for them | |
| JP3860916B2 (en) | TV signal branch distribution series unit | |
| JP2002151932A (en) | Ac power cord provided with antenna function | |
| JP3188355B2 (en) | Connector device for coaxial cable | |
| JP2733513B2 (en) | Tubular protector | |
| KR20010022105A (en) | Receiver | |
| JP3834240B2 (en) | Dummy connector | |
| JPS6021906Y2 (en) | Shielding cover case for electrical connectors | |
| KR200320993Y1 (en) | Fixing Device for the second earth | |
| JP2955097B2 (en) | Series unit | |
| JPH10248152A (en) | Structure of mounting bushing for cable connection | |
| JPS587692Y2 (en) | filter | |
| JPH0739058A (en) | Power cord with built-in filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080222 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090222 Year of fee payment: 7 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100222 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100222 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110222 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110222 Year of fee payment: 9 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313115 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110222 Year of fee payment: 9 |
|
| R371 | Transfer withdrawn |
Free format text: JAPANESE INTERMEDIATE CODE: R371 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313115 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110222 Year of fee payment: 9 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110222 Year of fee payment: 9 |
|
| RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: R3D03 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110222 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120222 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120222 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130222 Year of fee payment: 11 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140222 Year of fee payment: 12 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| S531 | Written request for registration of change of domicile |
Free format text: JAPANESE INTERMEDIATE CODE: R313531 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| EXPY | Cancellation because of completion of term |