JP4419921B2

JP4419921B2 - TV outlet

Info

Publication number: JP4419921B2
Application number: JP2005192700A
Authority: JP
Inventors: 耕一郎杭; 幹生小松; 充前田; 齋藤　　健; 真仁中植
Original assignee: Panasonic Corp; Matsushita Electric Works Ltd
Current assignee: Panasonic Corp; Panasonic Electric Works Co Ltd
Priority date: 2005-06-30
Filing date: 2005-06-30
Publication date: 2010-02-24
Anticipated expiration: 2025-06-30
Also published as: JP2007013690A

Description

本発明は、双方向ＣＡＴＶ用配線系等の信号伝送システムの末端において、そのシステムと、テレビ受像機やチューナ等の受信機器又はケーブルモデム等の情報端末とを接続するテレビコンセントに関するものである。 The present invention relates to a television outlet that connects a signal transmission system such as a bidirectional CATV wiring system to a receiving device such as a television receiver or a tuner or an information terminal such as a cable modem.

一般に、双方向ＣＡＴＶの信号伝送システムにおいては、ＣＡＴＶ局から加入者に向けての下り方向に対応する信号とその反対方向の上り方向に対応する信号とを周波数帯域で分けることにより、一本の同軸ケーブルで双方向通信が行われている。この上り方向の信号に加入者側からノイズ等が混入すると、通信の性能が低下するなどの影響を生じる。このため、下り方向のみの片方向通信のみを行うときには、信号伝送システムの末端となる端子を備えたテレビコンセントとして、上り方向に対応する周波数帯域の信号をカットするフィルタを備えたものが用いられている。 In general, in a bidirectional CATV signal transmission system, a signal corresponding to a downlink direction from a CATV station to a subscriber and a signal corresponding to an uplink direction opposite to the CATV station are separated by a frequency band. Two-way communication is performed with a coaxial cable. If noise or the like is mixed into the upstream signal from the subscriber side, an effect such as deterioration in communication performance occurs. For this reason, when performing only one-way communication only in the downlink direction, a TV outlet provided with a terminal serving as a terminal of the signal transmission system is provided with a filter that cuts a signal in a frequency band corresponding to the uplink direction. ing.

このようなテレビコンセントの中には、フィルタを適用するかどうかをスイッチにより選択して、双方向通信を行うか片方向通信を行うかを選択可能としたものが知られている。双方向／片方向を選択可能なテレビコンセントとしては、例えば特許文献１に示されるように、２つのテレビ端子を有するものがある。このようなテレビコンセントは、双方向通信用か片方向通信用かを切り替える切り替えスイッチを、２つのテレビ端子のうち少なくともいずれか１つのテレビ端子に対応して有している。特許文献１では、２つのテレビ端子を有するテレビコンセントにおいて、筐体の幅が狭い部位を設けて、テレビコンセント背面に設けられている入力端子に同軸ケーブルが接続し易いようにしている。 Among such television outlets, there is known a television outlet that can select whether to apply a filter by a switch and select whether to perform two-way communication or one-way communication. As a television outlet capable of selecting bidirectional / one-way, for example, there is a television outlet having two television terminals as disclosed in Patent Document 1. Such a television outlet has a changeover switch for switching between bidirectional communication and unidirectional communication corresponding to at least one of the two television terminals. In Patent Document 1, in a television outlet having two television terminals, a portion having a narrow casing is provided so that a coaxial cable can be easily connected to an input terminal provided on the rear surface of the television outlet.

また、一般に、この切り替えスイッチを、２つのテレビ端子にそれぞれ対応するように２つ有しているテレビコンセントも知られている。図６（ａ）、（ｂ）、（ｃ）は、このようなテレビコンセントの一例を示す。このテレビコンセント８１の筐体８１０の前面の上部及び下部には、それぞれ第１のテレビ端子８２ａ及び第２のテレビ端子８２ｂが設けられている。また、筐体８１０の上部は、後述のように開口部が設けられた部位の背面から後方に出っ張った形状となっており、この後方に出っ張った部位の下面には、入力端子８２ｃが下向きに露出されるように立設されている。筐体８１０の前面の、第２のテレビ端子８２ｂの近傍には、筐体８１０に設けられている操作孔８３を通して外部から操作可能となるように、２つの切り替えスイッチ（以下、スイッチと称する）８４が設けられている。これらの２つのスイッチ８４は、図６（ａ）に示すように、互いに略水平に並んで設けられている。筐体８１０の内部には、後述するようにフィルタ回路基板８６が配される。筐体８１０及びフィルタ回路基板８６の第１のテレビ端子８２ａと操作孔８３との間の部位は、幅方向の寸法が狭くなるように形成されている。入力端子８２ｃは、この筐体８１０の幅方向の寸法が狭くなることにより発生した空間８１０ｅの後方に設けられている。 In general, there is also known a television outlet having two changeover switches corresponding to two television terminals. FIGS. 6A, 6B, and 6C show examples of such television outlets. A first television terminal 82a and a second television terminal 82b are provided on the upper and lower portions of the front surface of the housing 810 of the television outlet 81, respectively. Further, the upper portion of the housing 810 has a shape protruding rearward from the back surface of the portion where the opening is provided as described later, and the input terminal 82c faces downward on the lower surface of the rearward protruding portion. It is erected so as to be exposed. In the vicinity of the second television terminal 82b on the front surface of the housing 810, two changeover switches (hereinafter referred to as switches) are provided so that they can be operated from the outside through the operation holes 83 provided in the housing 810. 84 is provided. As shown in FIG. 6A, these two switches 84 are provided substantially in parallel with each other. A filter circuit board 86 is disposed inside the housing 810 as will be described later. Parts of the housing 810 and the filter circuit board 86 between the first television terminal 82a and the operation hole 83 are formed so that the dimension in the width direction becomes narrow. The input terminal 82c is provided behind the space 810e generated when the widthwise dimension of the housing 810 is narrowed.

図７は、フィルタ回路基板８６を示す。筐体８１０の背面の後方に出っ張った部位の下方には開口部が設けられており、フィルタ回路基板８６は、この開口部から筐体８１０の内部に配される。筐体８１０の開口部は、フィルタ回路基板８６が筐体８１０の内部に配された状態で、封止板８１１ｂが圧入されて封止される。このフィルタ回路基板８６は、入力端子８２ｃと第１のテレビ端子８２ａ及び第２のテレビ端子８２ｂとをそれぞれ接続する導電パターンである２つの経路８７ａ，８７ｂと、これら２つの経路８７ａ，８７ｂの間にそれぞれ接続されるフィルタ８８ａ，８８ｂと、スイッチ８４と接続され、経路８７ａ，８７ｂの途中にそれぞれ配されるスイッチ接続部８４１ａ，８４２ｂとを搭載している。スイッチ８４が切り替わると、このフィルタ８８ａ，８８ｂが経路８７ａ，８７ｂに挿入されるかどうかが切り替わることによって双方向通信と片方向通信とが切り替わる。 FIG. 7 shows the filter circuit board 86. An opening is provided below a portion protruding rearward of the back surface of the housing 810, and the filter circuit board 86 is disposed inside the housing 810 through the opening. The opening of the housing 810 is sealed by press-fitting a sealing plate 811b in a state where the filter circuit board 86 is arranged inside the housing 810. The filter circuit board 86 includes two paths 87a and 87b, which are conductive patterns that connect the input terminal 82c, the first television terminal 82a, and the second television terminal 82b, respectively, and between the two paths 87a and 87b. Filters 88a and 88b connected to each other, and switch connections 841a and 842b connected to the switch 84 and arranged in the middle of the paths 87a and 87b, respectively. When the switch 84 is switched, bidirectional communication and unidirectional communication are switched by switching whether or not the filters 88a and 88b are inserted into the paths 87a and 87b.

このテレビコンセント８１は、図８（ａ）、（ｂ）に示すように、筐体８１０の前面がカバー８２０により覆われて、室内等にカバー８２０と第１のテレビ端子８２ａ及び第２のテレビ端子８２ｂとが露出するように、壁面８９０に配置されて用いられる。テレビコンセント８１の後方には、アウトレットボックス８８０が設けられている。テレビコンセント８１は、壁面８９０の背面側からアウトレットボックス８８０内に配された同軸ケーブル８６０の端部の端子８６１が入力端子８２ｃに接続された状態で壁面８９０に配される。 As shown in FIGS. 8A and 8B, the TV outlet 81 has the front surface of the housing 810 covered with a cover 820, and the cover 820, the first TV terminal 82a, and the second TV are provided indoors. It is used by being arranged on the wall surface 890 so that the terminal 82b is exposed. An outlet box 880 is provided behind the TV outlet 81. The TV outlet 81 is arranged on the wall surface 890 with the terminal 861 at the end of the coaxial cable 860 arranged in the outlet box 880 from the back side of the wall surface 890 connected to the input terminal 82c.

ところで、図７に示すように、フィルタ回路基板８６の幅方向の寸法が狭い部位には、上述の２つの経路８７ａ，８７ｂのうち、入力端子８２ｃから２分配されてスイッチ接続部８４１ａ，８４２ｂへ接続される２本の往路８７１ａ，８７１ｂと、スイッチ接続部８４１ａから第１のテレビ端子８２ａへと接続される復路８７２ａとの、計３本の導電パターンが密集して配されている。このように導電パターン同士の距離が狭いと、導電パターン間で互いに信号が干渉して漏話が発生し、信号の伝送特性が劣化してしまうおそれがある。信号の伝送特性が劣化すると、信号の品質が低下し、例えばテレビ受像機の画像が乱れる等の不具合が生じる。なお、経路８７ｂのうち、復路でない経路８７２ｂは、スイッチ接続部８４１ｂと第２のテレビ端子８２ｂとを接続している。
特開２００４−３２０５４８号公報 By the way, as shown in FIG. 7, the filter circuit board 86 is divided into two portions from the input terminal 82c in the two paths 87a and 87b to the switch connecting portions 841a and 842b in the narrow portion in the width direction. A total of three conductive patterns of the two forward paths 871a and 871b to be connected and the return path 872a connected from the switch connection portion 841a to the first television terminal 82a are densely arranged. When the distance between the conductive patterns is narrow in this way, signals may interfere with each other between the conductive patterns, causing crosstalk, which may deteriorate the signal transmission characteristics. When the transmission characteristics of the signal deteriorate, the signal quality deteriorates and, for example, problems such as disturbance of the image of the television receiver occur. Of the paths 87b, the path 872b that is not the return path connects the switch connection portion 841b and the second television terminal 82b.
JP 2004-320548 A

本発明は、上記問題点を鑑みてなされたものであり、フィルタ回路基板の幅方向の寸法が狭い部位を通る導電パターンの経路が複数ライン形成されても、これら導電パターン間で漏話が発生しにくく、信号の伝送特性が劣化しにくく、信号の伝送上の品質が低下しにくいテレビコンセントを提供することを目的とする。 The present invention has been made in view of the above problems, and even when a plurality of conductive pattern paths passing through a portion having a narrow dimension in the width direction of the filter circuit board are formed, crosstalk occurs between these conductive patterns. It is an object of the present invention to provide a television outlet that is difficult to deteriorate, in which signal transmission characteristics are not easily deteriorated, and in which signal transmission quality is unlikely to deteriorate.

上記目的を達成するため請求項１の発明は、筐体前面から露出されるように設けられた第１のテレビ端子及び第２のテレビ端子と、筐体外部に露出されるように筐体の背面側に配され、同軸ケーブルと接続される入力端子とが筐体に形成され、筐体の内部に収納され、前記入力端子に接続されて前記同軸ケーブルを経由して送られる信号を２分配する２分配回路を有する２分配回路基板と、前記２分配回路と第１のテレビ端子とを前記信号を伝送可能に接続する第一の経路と、第一の経路とは異なり前記２分配回路と第２のテレビ端子とを前記信号を伝送可能に接続する第二の経路と、これら第一、第二の経路それぞれに個別に挿入可能なフィルタとを有し、筐体内部に収納されたフィルタ回路基板と、前記筐体前面に外部から操作可能に設けられ、前記第一の経路に接続され、前記フィルタを第一の経路に挿入するかどうかによって第１のテレビ端子を双方向通信と片方向通信とに切り替えるための第１の切り替えスイッチと、前記筐体前面に外部から操作可能に設けられ、前記第二の経路に接続され、前記フィルタを第二の経路に挿入するかどうかによって第２のテレビ端子を双方向通信と片方向通信とに切り替えるための第２の切り替えスイッチとを備え、前記第１の切り替えスイッチ及び第２の切り替えスイッチは、共に前記第１のテレビ端子又は第２のテレビ端子のいずれか一方の近傍に配置されており、前記筐体は、前記第１のテレビ端子又は第２のテレビ端子のうち他方が設けられた部位と前記第１の切り替えスイッチ及び第２の切り替えスイッチが設けられた部位との間の部位が、幅方向の寸法が狭くなるように成形されたテレビコンセントにおいて、前記フィルタ回路基板の幅方向の寸法が狭い部位では、前記第一の経路のうち前記２分配回路から前記第１のスイッチへ繋がる第一の経路の第一パターン路と、前記第二の経路のうち前記２分配回路から前記第２のスイッチへ繋がる第二の経路の第一パターン路と、前記第１のスイッチから前記第１のテレビ端子へ繋がる第一の経路の第二パターン路又は前記第２のスイッチから前記第２のテレビ端子へ繋がる第二の経路の第二パターン路のいずれか１つのパターン路とが、前記フィルタ回路基板の片面に略並行するよう配されており、前記フィルタ回路基盤の幅方向の寸法が狭い部位の片面に配された第一の経路の第二パターン路又は第二の経路の第二パターン路のいずれか1つのパターン路は、フィルタ回路基板の幅方向の略中心に沿うよう配され、このようにフィルタ回路基板の幅方向の略中心に沿うよう配されたパターン路の両側に所定寸法離れた位置に並走するよう、第一の経路の第一パターン路と第二の経路の第一パターン路とがそれぞれ配されているものである。 In order to achieve the above object, the first aspect of the present invention provides a first television terminal and a second television terminal which are provided so as to be exposed from the front surface of the casing, and a casing which is exposed to the outside of the casing. An input terminal arranged on the back side and connected to the coaxial cable is formed in the casing, housed in the casing, and connected to the input terminal to be sent via the coaxial cable into two distributions. A second distribution circuit board having two distribution circuits, a first path connecting the two distribution circuits and the first television terminal so as to be able to transmit the signal, and the two distribution circuits different from the first path; A filter having a second path for connecting the second television terminal so that the signal can be transmitted, and a filter that can be individually inserted into each of the first and second paths, and housed in the housing The circuit board and the front of the housing are installed to be operable from the outside. A first changeover switch connected to the first path for switching the first television terminal between bidirectional communication and unidirectional communication depending on whether the filter is inserted into the first path; Provided on the front surface of the housing so as to be operable from the outside, connected to the second path, and switching the second TV terminal between bidirectional communication and unidirectional communication depending on whether the filter is inserted into the second path. The first changeover switch and the second changeover switch are both arranged in the vicinity of either the first TV terminal or the second TV terminal, The housing includes a portion where the other of the first TV terminal or the second TV terminal is provided and a portion where the first changeover switch and the second changeover switch are provided. In the TV outlet formed so that the width dimension is narrow in the width direction, the filter circuit board is narrower in the width direction than the second distribution circuit in the first path. A first pattern path of a first path connected to one switch, a first pattern path of a second path connected from the two distribution circuit to the second switch among the second paths, and the first pattern path One pattern path of a second pattern path of a first path connecting from the switch to the first TV terminal or a second pattern path of a second path connecting from the second switch to the second TV terminal Are arranged so as to be substantially parallel to one side of the filter circuit board, and the second pattern path of the first path or the second path arranged on one side of the portion where the dimension in the width direction of the filter circuit board is narrow. Second in the path Any one of the pattern paths is arranged along the approximate center in the width direction of the filter circuit board, and thus is predetermined on both sides of the pattern path arranged along the approximate center in the width direction of the filter circuit board. The first pattern path of the first path and the first pattern path of the second path are arranged so as to run in parallel at positions that are separated from each other.

請求項２の発明は、筐体前面から露出されるように設けられた第１のテレビ端子及び第２のテレビ端子と、筐体外部に露出されるように筐体の背面側に配され、同軸ケーブルと接続される入力端子とが筐体に形成され、筐体の内部に収納され、前記入力端子に接続されて前記同軸ケーブルを経由して送られる信号を２分配する２分配回路を有する２分配回路基板と、前記２分配回路と第１のテレビ端子とを前記信号を伝送可能に接続する第一の経路と、第一の経路とは異なり前記２分配回路と第２のテレビ端子とを前記信号を伝送可能に接続する第二の経路と、これら第一、第二の経路それぞれに個別に挿入可能なフィルタとを有し、筐体内部に収納されたフィルタ回路基板と、前記筐体前面に外部から操作可能に設けられ、前記第一の経路に接続され、前記フィルタを第一の経路に挿入するかどうかによって第１のテレビ端子を双方向通信と片方向通信とに切り替えるための第１の切り替えスイッチと、前記筐体前面に外部から操作可能に設けられ、前記第二の経路に接続され、前記フィルタを第二の経路に挿入するかどうかによって第２のテレビ端子を双方向通信と片方向通信とに切り替えるための第２の切り替えスイッチとを備え、前記第１の切り替えスイッチ及び第２の切り替えスイッチは、共に前記第１のテレビ端子又は第２のテレビ端子のいずれか一方の近傍に配置されており、前記筐体は、前記第１のテレビ端子又は第２のテレビ端子のうち他方が設けられた部位と前記第１の切り替えスイッチ及び第２の切り替えスイッチが設けられた部位との間の部位が、幅方向の寸法が狭くなるように成形されたテレビコンセントにおいて、前記フィルタ回路基板の幅方向の寸法が狭い部位では、前記第一の経路のうち前記２分配回路から前記第１のスイッチへ繋がる第一の経路の第一パターン路と、前記第二の経路のうち前記２分配回路から前記第２のスイッチへ繋がる第二の経路の第一パターン路とが、このフィルタ回路基板の一面に配されており、前記第１のスイッチから前記第１のテレビ端子へ繋がる第一の経路の第二パターン路又は前記第２のスイッチから前記第２のテレビ端子へ繋がる第二の経路の第二パターン路のいずれか１つのパターン路が、前記フィルタ回路基板の一面に対向する他面に、前記第一の経路の第一パターン路及び第二の経路の第一パターン路とともに平面透視で略並行するよう配されているものである。 The invention of claim 2 is arranged on the rear side of the housing so as to be exposed to the outside of the housing, the first television terminal and the second television terminal provided so as to be exposed from the housing front surface, An input terminal connected to the coaxial cable is formed in the casing, and is housed inside the casing, and has a two distribution circuit that distributes a signal that is connected to the input terminal and sent via the coaxial cable into two. Unlike the first path, a first path for connecting the two distribution circuit board, the two distribution circuit and the first television terminal so that the signal can be transmitted, and the second distribution circuit and the second television terminal, A filter circuit board housed inside the housing, and a second circuit that connects the signal so that the signal can be transmitted, and a filter that can be inserted into each of the first and second channels. The first path is provided on the front of the body so as to be operable from the outside. A first changeover switch for switching the first TV terminal between two-way communication and one-way communication depending on whether the filter is inserted into the first path, and can be operated from the outside on the front surface of the housing A second changeover switch connected to the second path for switching the second television terminal between bidirectional communication and unidirectional communication depending on whether the filter is inserted into the second path; The first change-over switch and the second change-over switch are both arranged in the vicinity of either the first TV terminal or the second TV terminal, and the housing is provided with the first switch. The portion between the portion of the TV terminal or the second television terminal provided with the other and the portion provided with the first changeover switch and the second changeover switch is in the width direction. In a television outlet shaped so as to be narrow, the first path connecting the two distribution circuits to the first switch in the first path at a portion where the width of the filter circuit board is narrow. The first pattern path of the second path and the first pattern path of the second path connected to the second switch from the two distribution circuits among the second paths are arranged on one surface of the filter circuit board, Either the second pattern path of the first path connecting from the first switch to the first TV terminal or the second pattern path of the second path connecting from the second switch to the second TV terminal. One pattern path is arranged on the other surface opposite to one surface of the filter circuit board so as to be substantially parallel with the first pattern path of the first path and the first pattern path of the second path in a plane perspective view. It is what.

請求項３の発明は、前記フィルタ回路基板は、その側縁に設けられた穴部及び穴部の周囲に配された導電パターンであるランドを有し、前記筐体には前記穴部と嵌合されるボスが形成され、前記穴部と前記ボスとを嵌合させた状態で前記ランドと前記ボスとをハンダ接合させることにより、前記フィルタ回路基板が前記筐体の内部に固定されており、前記フィルタ回路基板の幅方向の寸法が狭い部位では、前記第一の経路の第一パターン路及び第二の経路の第一パターン路は、このフィルタ回路基板の両側縁近傍に、前記ランドが配された部位から幅方向の内側に所定寸法離れた位置にそれぞれ配されており、前記第一の経路の第二パターン路又は第二の経路の第二パターン路は、平面透視で、前記第一の経路の第一パターン路及び第二の経路の第一パターン路が配された位置の略中心に並走するよう配されているものである。 According to a third aspect of the present invention, the filter circuit board includes a hole provided on a side edge of the filter circuit board and a land which is a conductive pattern disposed around the hole, and the housing is fitted with the hole. The filter circuit board is fixed inside the casing by soldering the land and the boss in a state where the boss to be joined is formed and the hole and the boss are fitted together. In the region where the dimension in the width direction of the filter circuit board is narrow, the first pattern path of the first path and the first pattern path of the second path are in the vicinity of both side edges of the filter circuit board. The second pattern path of the first path or the second pattern path of the second path is disposed in a position that is separated by a predetermined dimension on the inner side in the width direction from the disposed site. The first pattern path and the second path of one path In which the first pattern paths are arranged to run parallel to the substantially center of the arranged position.

請求項１の発明によれば、フィルタ回路基板の幅方向の寸法が狭い部位では、第一の経路の第二パターン路又は第二の経路の第二パターン路のうちいずれか一つのパターン路がフィルタ回路基板の幅方向の略中心に配されており、このパターン路の両側に所定寸法離れた位置に、第一の経路の第一パターン路と第二の経路の第一パターン路のそれぞれが配されているので、これら３つのパターン路間の距離が広く確保され、導電パターン間での干渉は減少する。これにより、信号の伝送特性が劣化しにくくなり、信号の伝送上の品質を低下しにくくすることが可能となる。 According to the first aspect of the present invention, in the portion where the dimension in the width direction of the filter circuit board is narrow, any one of the second pattern path of the first path or the second pattern path of the second path is It is arranged at the approximate center in the width direction of the filter circuit board, and the first pattern path of the first path and the first pattern path of the second path are respectively located at positions separated by a predetermined dimension on both sides of the pattern path. Since they are arranged, a large distance is secured between these three pattern paths, and interference between the conductive patterns is reduced. This makes it difficult for signal transmission characteristics to deteriorate and makes it difficult to reduce signal transmission quality.

請求項２の発明によれば、フィルタ回路基板の幅方向の寸法が狭い部位では、第一の経路の第一パターン路と第二の経路の第一パターン路がフィルタ回路基板の一面に配されており、第一の経路の第二パターン路又は第二の経路の第二パターン路のうちいずれか一つのパターン路がフィルタ回路基板の他面に配されており、これら３本のパターンラインが平面透視で極力離間して並走するよう設けられているので、これら３つのパターン路間の電磁気的離間距離が広く確保され、導電パターン間での干渉はより減少する。これにより、信号の伝送特性が劣化しにくくなり、信号の伝送上の品質をより低下しにくくすることが可能となる。 According to the second aspect of the present invention, the first pattern path of the first path and the first pattern path of the second path are arranged on one surface of the filter circuit board in a portion where the dimension in the width direction of the filter circuit board is narrow. Any one of the second pattern path of the first path or the second pattern path of the second path is arranged on the other surface of the filter circuit board, and these three pattern lines are Since they are provided so as to run parallel to each other as far as possible in plan view, a wide electromagnetic separation distance between these three pattern paths is ensured, and interference between the conductive patterns is further reduced. As a result, the transmission characteristics of the signal are hardly deteriorated, and it is possible to make it difficult to lower the quality of signal transmission.

請求項３の発明によれば、フィルタ回路基板の幅方向の寸法が狭い部位では、第一の経路の第一パターン路と第二の経路の第一パターン路は、このフィルタ回路基板の両側縁近傍に、ランドが配された部位から幅方向の内側に所定寸法離れた位置にそれぞれ配されており、第一の経路の第二パターン路又は第二の経路の第二パターン路は、第一の経路の第一パターン路と第二の経路の第一パターン路が配された位置の略中心に配されているので、フィルタ回路基板の幅方向の寸法が狭い部位でフィルタ回路基板と筐体とがハンダ接合されているようなものであっても、導電パターン間の距離が広く確保される。これにより、上述と同様に、信号の伝送上の品質を低下しにくくすることが可能となる。 According to the third aspect of the present invention, the first pattern path of the first path and the first pattern path of the second path are located on both side edges of the filter circuit board at a portion where the dimension in the width direction of the filter circuit board is narrow. In the vicinity, it is arranged at a position separated by a predetermined dimension inside the width direction from the part where the land is arranged, and the second pattern path of the first path or the second pattern path of the second path is the first Since the first pattern path of the second path and the first pattern path of the second path are arranged at substantially the center of the position, the filter circuit board and the casing are arranged at a portion where the dimension in the width direction of the filter circuit board is narrow. Can be secured with a wide distance between the conductive patterns. As a result, it is possible to make it difficult for signal quality to deteriorate as described above.

以下、本発明の第１の実施形態について図面を参照して説明する。図１（ａ）、（ｂ）、及び図２は、本実施形態に係るテレビコンセントを示す。なお、図２は、後述する封止板１１ｂが取り付けられていない状態のテレビコンセントを示す。このテレビコンセント１の筐体１０の上部及び下部には、筐体１０の前面から露出されるように、それぞれ第１のテレビ端子２ａ及び第２のテレビ端子２ｂが設けられている。筐体１０の背面側には、筐体１０の外部に露出するように、同軸ケーブル（図示せず）と接続される入力端子２ｃが設けられている。第１のテレビ端子２ａ、第２のテレビ端子２ｂ、及び入力端子２ｃは、例えばＦ型コネクタの端子である。筐体１０の前面の第２のテレビ端子２ｂの近傍には、２つの操作孔３ａ，３ｂが設けられている。この操作孔３ａ，３ｂを通して筐体１０の外部から操作可能となるように、筐体１０の内部に、第１の切り替えスイッチ（以下、第１のスイッチと称する）４ａ、第２の切り替えスイッチ（以下、第２のスイッチと称する）４ｂがそれぞれ設けられている。筐体１０の上部の内部には、入力端子２ｃと接続され、同軸ケーブルを経由して送られる信号を２分配する２分配回路を有する２分配回路基板５が略水平に収納され、また、２分配された信号を第１のテレビ端子２ａ及び第２のテレビ端子２ｂに伝送するフィルタ回路基板６が２分配回路基板５よりも下方に略垂直に収納されている。このテレビコンセント１は、入力端子２ｃに同軸ケーブルが接続された状態で、例えば室内の壁面等に取り付けられて用いられる。 Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIGS. 1A, 1B, and 2 show a television outlet according to the present embodiment. FIG. 2 shows a television outlet in a state where a sealing plate 11b described later is not attached. A first television terminal 2 a and a second television terminal 2 b are respectively provided on the upper and lower portions of the housing 10 of the television outlet 1 so as to be exposed from the front surface of the housing 10. An input terminal 2 c connected to a coaxial cable (not shown) is provided on the back side of the housing 10 so as to be exposed to the outside of the housing 10. The first television terminal 2a, the second television terminal 2b, and the input terminal 2c are terminals of an F-type connector, for example. In the vicinity of the second television terminal 2b on the front surface of the housing 10, two operation holes 3a and 3b are provided. A first changeover switch (hereinafter referred to as a first switch) 4a, a second changeover switch (hereinafter referred to as a “first switch”) is provided inside the housing 10 so as to be operable from outside the housing 10 through the operation holes 3a and 3b. (Hereinafter referred to as a second switch) 4b. Inside the upper part of the housing 10, a 2-distribution circuit board 5 having a 2-distribution circuit that is connected to the input terminal 2c and distributes a signal transmitted via a coaxial cable into two is accommodated substantially horizontally. A filter circuit board 6 for transmitting the distributed signal to the first television terminal 2 a and the second television terminal 2 b is accommodated substantially vertically below the two distribution circuit boards 5. The television outlet 1 is used by being attached to, for example, an indoor wall surface in a state where a coaxial cable is connected to the input terminal 2c.

筐体１０は、例えばダイキャスト等、金属により成形される。図１（ｂ）に示すように、筐体１０の２分配回路基板５が収納されている部位はフィルタ回路基板６が設けられている部位の背面から後方に出っ張った形状とされている。入力端子２ｃは、この出っ張った部分から下方向に突出するように、筐体１０の側面の近傍に設けられている。また、筐体１０の上面と、フィルタ回路基板６が設けられている部位の背面とは、それぞれ外部に解放された開口部１０ａ，１０ｂとなっている。開口部１０ａ，１０ｂは、それぞれ封止板１１ａ，１１ｂによって覆われている。筐体１０の内部には、図１（ｂ）に示すように、後述するようにして２分配回路基板５とフィルタ回路基板６とを収納するためのボス１０ｃと、ボス１０ｃが立設された台座１０ｄが形成されている。 The housing 10 is formed of metal such as die casting. As shown in FIG. 1B, the portion of the housing 10 in which the two distribution circuit boards 5 are housed has a shape protruding rearward from the back of the portion where the filter circuit board 6 is provided. The input terminal 2c is provided in the vicinity of the side surface of the housing 10 so as to protrude downward from the protruding portion. Moreover, the upper surface of the housing | casing 10 and the back surface of the site | part in which the filter circuit board 6 is provided are the opening parts 10a and 10b open | released outside, respectively. The openings 10a and 10b are covered with sealing plates 11a and 11b, respectively. As shown in FIG. 1B, a boss 10c for accommodating the two distribution circuit board 5 and the filter circuit board 6 and a boss 10c are erected in the housing 10 as will be described later. A pedestal 10d is formed.

また、本実施形態において、図１（ａ）に示すように、筐体１０の第１のテレビ端子２ａと操作孔３ａ，３ｂとの間の部位は、幅方向の寸法が狭くなるように成形されており、その部位の左右両側は空間１０ｅとなっている。筐体１０は、この空間１０ｅが大きくなるような形状に成形されており、これにより、入力端子２ｃの周囲には広い空間が確保され、入力端子２ｃに同軸ケーブルを容易に接続可能となっている。 Further, in the present embodiment, as shown in FIG. 1A, the portion between the first television terminal 2a and the operation holes 3a and 3b of the housing 10 is formed so that the dimension in the width direction becomes narrow. The left and right sides of the part are spaces 10e. The housing 10 is formed in a shape that makes this space 10e large, and thereby, a wide space is secured around the input terminal 2c, and a coaxial cable can be easily connected to the input terminal 2c. Yes.

操作孔３ａは、図１（ａ）に示すように、操作孔３ｂよりも第１のテレビ端子２ａに近い位置に配置され、操作孔３ｂは、操作孔３ａよりも第２のテレビ端子２ｂに近い位置に配置されている。すなわち、第１のスイッチ４ａ及び第２のスイッチ４ｂは、共に第２のテレビ端子２ｂの近傍に設けられており、第１のスイッチ４ａは、第２のスイッチ４ｂよりも第１のテレビ端子２ａに近い位置に配置され、第２のスイッチ４ｂは、第１のスイッチ４ａよりも第２のテレビ端子２ｂに近い位置に配置されている。第１のスイッチ４ａ及び第２のスイッチ４ｂは、例えばスライド型のスイッチであり、本実施形態においては、操作孔３ａ，３ｂを通して上下方向に切り替えることができるように配されている。 As shown in FIG. 1A, the operation hole 3a is disposed closer to the first television terminal 2a than the operation hole 3b, and the operation hole 3b is closer to the second television terminal 2b than the operation hole 3a. It is arranged at a close position. That is, the first switch 4a and the second switch 4b are both provided in the vicinity of the second television terminal 2b, and the first switch 4a is more first than the second switch 4b. The second switch 4b is disposed closer to the second television terminal 2b than the first switch 4a. The first switch 4a and the second switch 4b are, for example, slide-type switches, and are arranged so as to be able to be switched in the vertical direction through the operation holes 3a and 3b in the present embodiment.

２分配回路基板５には、側縁近傍に、穴部及び穴部周囲に形成された導電パターンであるランドが設けられている。２分配回路基板５は、この穴部に筐体１０のボス１０ｃが嵌合された状態で台座１０ｄ上に配される。そして、そのボス１０ｃとランドとをハンダ接合することにより、２分配回路基板５が筐体１０の内部に固定されて収納されている。２分配回路基板５は、入力端子２ｃと接続されており、２分配回路により、同軸ケーブルを経由して入力端子２ｃから入力された信号を２分配する。 The 2-distribution circuit board 5 is provided with a land which is a hole and a conductive pattern formed around the hole in the vicinity of the side edge. The two distribution circuit boards 5 are arranged on the pedestal 10d in a state where the bosses 10c of the housing 10 are fitted in the holes. Then, the two distribution circuit boards 5 are fixed and accommodated inside the housing 10 by soldering the bosses 10c and the lands. The 2-distribution circuit board 5 is connected to the input terminal 2c, and the 2-distribution circuit distributes the signal input from the input terminal 2c via the coaxial cable into two.

図３はフィルタ回路基板６を示す。また、図４は、筐体１０に配されたフィルタ回路基板６の断面を示す。フィルタ回路基板６は、筐体１０の内部形状に対応した形状とされており、第１のテレビ端子２ａと第１の切り替えスイッチ４ａ及び第２の切り替えスイッチ４ｂとの間の部位は幅方向の寸法が狭くなるように成形されている。このフィルタ回路基板６の側縁近傍には、穴部６１ａと、穴部６１ａ周囲に形成された導電パターンであるランド６１ｂが設けられている。フィルタ回路基板６は、筐体１０のボス１０ｃをこの穴部６１ａに嵌合させた状態で、台座１０ｄ上に配される。そして、図４に示すように、ボス１０ｃとランド６１ｂにハンダ９を付着させてハンダ接合することにより、フィルタ回路基板６が筐体１０の内部に筐体１０の前面と略平行に固定されて収納されている。なお、本実施形態において、テレビコンセント１を使用する際には筐体１０は接地電位とされており、２分配回路基板５のランド及びフィルタ回路基板６のランド６１ｂは、筐体１０とハンダ接合されることにより、接地電位に接続された状態となる。 FIG. 3 shows the filter circuit board 6. FIG. 4 shows a cross section of the filter circuit board 6 arranged in the housing 10. The filter circuit board 6 has a shape corresponding to the internal shape of the housing 10, and a portion between the first television terminal 2a and the first changeover switch 4a and the second changeover switch 4b is in the width direction. It is shaped so that its dimensions are narrow. Near the side edge of the filter circuit board 6, there are provided a hole 61a and a land 61b which is a conductive pattern formed around the hole 61a. The filter circuit board 6 is arranged on the pedestal 10d in a state where the boss 10c of the housing 10 is fitted in the hole 61a. Then, as shown in FIG. 4, the filter circuit board 6 is fixed to the inside of the housing 10 substantially parallel to the front surface of the housing 10 by attaching the solder 9 to the bosses 10 c and the lands 61 b and soldering them. It is stored. In this embodiment, when the TV outlet 1 is used, the casing 10 is set to the ground potential, and the land of the two distribution circuit board 5 and the land 61b of the filter circuit board 6 are soldered to the casing 10. By doing so, it is connected to the ground potential.

図３に示すように、このフィルタ回路基板６は、片面パターン基板であって、導電パターンである第一の経路７ａ及び第二の経路７ｂと、これらの第一の経路７ａ及び第二の経路７ｂそれぞれに個別に挿入可能に設けられるフィルタ８ａ，８ｂと、上述の第１のスイッチ４ａ及び第２のスイッチ４ｂにそれぞれ接続されるスイッチ接続部４１ａ，４１ｂを有している。なお、第一の経路７ａ及び第二の経路７ｂは、図４に示すようにレジスト６２によって被覆され、保護、絶縁されている。フィルタ回路基板６の上部及び下部にはそれぞれ端子接続部６ａ，６ｂが設けられており、この端子接続部６ａ，６ｂに第１のテレビ端子２ａ及び第２のテレビ端子２ｂがそれぞれ接続されている。また、フィルタ回路基板６の上部には回路接続部６ｃ１、６ｃ２が設けられており、この回路接続部６ｃ１、６ｃ２に２分配回路基板５の２分配回路が接続されている。第一の経路７ａ及び第二の経路７ｂは、第１のテレビ端子２ａ及び第２のテレビ端子２ｂと、２分配回路基板５の２分配回路とを、信号を伝送可能にそれぞれ接続している。スイッチ接続部４１ａ，４１ｂは、それぞれ第一の経路７ａ及び第二の経路７ｂの途中に配されており、スイッチ４ａ，４ｂが切り替わると、フィルタ８ａ，８ｂが第一の経路７ａ及び第二の経路７ｂに挿入されるかどうかが切り替わるように構成されている。なお、第一の経路７ａは、２分配回路に接続された回路接続部６ｃ１から第１のスイッチ４ａに接続されたスイッチ接続部４１ａまでが第一の経路の第一パターン路７１ａとされ、このスイッチ接続部４１ａから第１のテレビ端子２ａが接続された端子接続部６ａまでが第一の経路の第二パターン路７２ａとされる。また、第二の経路７ｂは、２分配回路に接続された回路接続部６ｃ２から第２のスイッチ４ｂに接続されたスイッチ接続部４１ｂまでが第二の経路の第一パターン路７１ｂとされ、このスイッチ接続部４１ｂから第２のテレビ端子２ｂが接続された端子接続部６ｂまでが第二の経路の第二パターン路７２ｂとされる。 As shown in FIG. 3, the filter circuit board 6 is a single-sided pattern board, and includes a first path 7a and a second path 7b, which are conductive patterns, and the first path 7a and the second path. 7b includes filters 8a and 8b that can be individually inserted, and switch connecting portions 41a and 41b connected to the first switch 4a and the second switch 4b, respectively. The first path 7a and the second path 7b are covered with a resist 62 as shown in FIG. 4, and are protected and insulated. Terminal connection portions 6a and 6b are respectively provided on the upper and lower portions of the filter circuit board 6, and the first television terminal 2a and the second television terminal 2b are connected to the terminal connection portions 6a and 6b, respectively. . In addition, circuit connection portions 6c1 and 6c2 are provided on the upper portion of the filter circuit board 6, and the two distribution circuits of the two distribution circuit board 5 are connected to the circuit connection portions 6c1 and 6c2. The first path 7a and the second path 7b connect the first TV terminal 2a and the second TV terminal 2b to the two distribution circuits of the two distribution circuit board 5 so that signals can be transmitted. . The switch connecting portions 41a and 41b are respectively arranged in the middle of the first route 7a and the second route 7b. When the switches 4a and 4b are switched, the filters 8a and 8b are connected to the first route 7a and the second route 7b. It is configured to switch whether or not to be inserted into the path 7b. The first path 7a is a first pattern path 71a of the first path from the circuit connection part 6c1 connected to the two distribution circuit to the switch connection part 41a connected to the first switch 4a. From the switch connection portion 41a to the terminal connection portion 6a to which the first television terminal 2a is connected is the second pattern path 72a of the first path. Further, the second path 7b is a first pattern path 71b of the second path from the circuit connection part 6c2 connected to the two distribution circuit to the switch connection part 41b connected to the second switch 4b. The second pattern path 72b of the second path is from the switch connection section 41b to the terminal connection section 6b to which the second television terminal 2b is connected.

フィルタ８ａ，８ｂは、ＣＡＴＶ用の信号のうち、加入者（ユーザ）側からＣＡＴＶ局側に向かう上り方向に対応する周波数帯域の成分を除去する帯域阻止フィルタである。フィルタ８ａ，８ｂは、第一の経路７ａ及び第二の経路７ｂにそれぞれ挿入されたとき、この第一の経路７ａ及び第二の経路７ｂを伝送されるＣＡＴＶ用の信号のうち、第１のテレビ端子２ａ及び第２のテレビ端子２ｂから入力端子２ｃに向かう上り方向に対応する周波数帯域の信号をカットする。このため、第一の経路７ａ及び第二の経路７ｂは、入力端子２ｃから第１のテレビ端子２ａ及び第２のテレビ端子２ｂに向かう下り方向に対応する周波数帯域の信号のみを通過可能な片方向通信用の経路となる。フィルタ８ａ，８ｂが第一の経路７ａ及び第二の経路７ｂに挿入されていないときには、第一の経路７ａ及び第二の経路７ｂは双方向通信用の経路となる。すなわち、上述のように、第１のスイッチ４ａ又は第２のスイッチ４ｂが切り替わり、フィルタ８ａ，８ｂがそれぞれ第一の経路７ａ及び第二の経路７ｂに挿入されるかどうかが切り替わると、第１のテレビ端子２ａ、第２のテレビ端子２ｂについて、双方向通信用か片方向通信用かの設定が切り替わる。なお、本実施形態においては、第１のテレビ端子２ａと第２のテレビ端子２ｂとのそれぞれについての双方向通信と片方向通信との切り替え作業は、筐体１０の外部から第１のスイッチ４ａ又は第２のスイッチ４ｂの双方向／片方向の設定を切り替えることにより行われる。この作業は、テレビコンセント１が壁面等に設置されている状態で行うことができる。 The filters 8a and 8b are band rejection filters for removing frequency band components corresponding to the upward direction from the subscriber (user) side toward the CATV station side from the CATV signal. When the filters 8a and 8b are inserted into the first path 7a and the second path 7b, respectively, the first of the CATV signals transmitted through the first path 7a and the second path 7b is the first one. A signal in a frequency band corresponding to the upward direction from the TV terminal 2a and the second TV terminal 2b toward the input terminal 2c is cut. For this reason, the first path 7a and the second path 7b are pieces that can pass only signals in the frequency band corresponding to the downward direction from the input terminal 2c toward the first TV terminal 2a and the second TV terminal 2b. This is a route for direction communication. When the filters 8a and 8b are not inserted into the first path 7a and the second path 7b, the first path 7a and the second path 7b are bidirectional communication paths. That is, as described above, when the first switch 4a or the second switch 4b is switched and whether the filters 8a and 8b are inserted into the first path 7a and the second path 7b, respectively, For the TV terminal 2a and the second TV terminal 2b, the setting for bidirectional communication or one-way communication is switched. In the present embodiment, the switching operation between the bidirectional communication and the unidirectional communication for each of the first television terminal 2a and the second television terminal 2b is performed from the outside of the housing 10 by the first switch 4a. Alternatively, it is performed by switching the bidirectional / one-way setting of the second switch 4b. This operation can be performed in a state where the TV outlet 1 is installed on a wall surface or the like.

ここで、図３に示すように、フィルタ回路基板６の幅方向の寸法が狭い部位では、第一の経路７ａ及び第二の経路７ｂのうち、第一の経路の第一パターン路７１ａ及び第二の経路の第一パターン路７１ｂと第一の経路の第二パターン路７２ａとがフィルタ回路基板６の片面に略並行するよう配されている。この部位では、図３及び図４に示すように、第一の経路の第一パターン路７１ａ及び第二の経路の第一パターン路７１ｂは、フィルタ回路基板６の幅方向の寸法が狭い部位の両側縁近傍に、ランド６１ｂが配された部位から幅方向の内側に所定寸法（図４に寸法線で示す）離れた位置にそれぞれ配されている。本実施形態において、第一の経路の第一パターン路７１ａ，第二の経路の第一パターン路７１ｂとランド６１ｂとは、例えばｄ＝０．１ｍｍ離れるように構成されており、ランド６１ｂ及び筐体１０と第一の経路の第一パターン路７１ａ，第二の経路の第一パターン路７１ｂとが確実に絶縁されるように構成されている。なお、この寸法はこれに限られるものではなく、ランド６１ｂと第一の経路の第一パターン路７１ａ，第二の経路の第一パターン路７１ｂとの電気的絶縁が確保されるような最小の寸法であればよい。また、このフィルタ回路基板６の幅方向の寸法が狭い部位では、第一の経路の第二パターン路７２ａは、図３に示すように、第一の経路の第一パターン路７１ａ及び第二の経路の第一パターン路７１ｂが配された位置の中心に配されている。すなわち、この部位では、第一の経路の第二パターン路７２ａがフィルタ回路基板６の幅方向の略中心に沿うように配されており、第一の経路の第一パターン路７１ａ及び第二の経路の第一パターン路７１ｂは、この第一の経路の第二パターン路７２ａの両側に所定寸法離れた位置に並走するようにそれぞれ配されている。このように、フィルタ回路基板６の幅方向の寸法が狭い部位には、第一の経路の第一パターン路７１ａ，第二の経路の第一パターン路７１ｂ、及び第一の経路の第二パターン路７２ａが、それぞれ互いの距離ができるだけ広くなるようにして配されている。 Here, as shown in FIG. 3, the first pattern path 71 a and the first path of the first path 7 a and the second path 7 b of the filter circuit board 6 are narrow in the width direction. The first pattern path 71 b of the second path and the second pattern path 72 a of the first path are arranged so as to be substantially parallel to one side of the filter circuit board 6. In this part, as shown in FIGS. 3 and 4, the first pattern path 71 a of the first path and the first pattern path 71 b of the second path are parts of the part where the dimension in the width direction of the filter circuit board 6 is narrow. In the vicinity of both side edges, the lands 61b are arranged at predetermined positions (indicated by dimensional lines in FIG. 4) in the width direction from the portion where the lands 61b are arranged. In the present embodiment, the first pattern path 71a of the first path, the first pattern path 71b of the second path, and the land 61b are configured to be separated by, for example, d = 0.1 mm. The body 10 is configured to be reliably insulated from the first pattern path 71a of the first path and the first pattern path 71b of the second path. Note that this dimension is not limited to this, and the minimum is such that electrical insulation between the land 61b and the first pattern path 71a of the first path and the first pattern path 71b of the second path is ensured. Any size is acceptable. Further, in the region where the dimension in the width direction of the filter circuit board 6 is narrow, as shown in FIG. 3, the second pattern path 72a of the first path is the first pattern path 71a of the first path and the second pattern path 72a. It is arranged at the center of the position where the first pattern path 71b of the path is arranged. That is, in this part, the second pattern path 72a of the first path is arranged along the approximate center in the width direction of the filter circuit board 6, and the first pattern path 71a and the second pattern path of the first path are arranged. The first pattern path 71b of the route is arranged on both sides of the second pattern path 72a of the first route so as to run in parallel at positions separated by a predetermined dimension. As described above, the first pattern path 71a of the first path, the first pattern path 71b of the second path, and the second pattern of the first path are formed in the narrow portion of the filter circuit board 6 in the width direction. The paths 72a are arranged so that their distances are as wide as possible.

本実施形態においては、上述のように、フィルタ回路基板６の幅方向の寸法が狭くなった部位で第一の経路の第一パターン路７１ａ及び第二の経路の第一パターン路７１ｂと第一の経路の第二パターン路７２ａの３本の導電パターン間の距離が互いに幅方向の寸法に見合って可能な限り広く確保されるので、導電パターン間での干渉が減少して漏話の発生が少なくなる。これにより、伝送特性が劣化しにくくなり、第一の経路７ａ及び第二の経路７ｂを伝送される信号の伝送上の品質を低下しにくくすることが可能となる。 In the present embodiment, as described above, the first pattern path 71a of the first path and the first pattern path 71b of the second path and the first path at the part where the dimension in the width direction of the filter circuit board 6 is narrowed. Since the distance between the three conductive patterns of the second pattern path 72a of the path is as wide as possible in accordance with the dimension in the width direction, interference between the conductive patterns is reduced and crosstalk is reduced. Become. This makes it difficult for the transmission characteristics to deteriorate, and makes it difficult to reduce the quality of transmission of signals transmitted through the first path 7a and the second path 7b.

次に、本発明の第２の実施形態について、図５（ａ）、（ｂ）を参照して説明する。本実施形態において、上述の実施形態と同様の構成部材のものは同一の符号を付し、上述の実施形態と相違する部分についてのみ説明する。本実施形態において、テレビコンセント１のフィルタ回路基板６上に配される経路の位置が、上述の第１の実施形態とは異なっている。 Next, a second embodiment of the present invention will be described with reference to FIGS. 5 (a) and 5 (b). In the present embodiment, the same components as those in the above-described embodiment are denoted by the same reference numerals, and only different portions from the above-described embodiment will be described. In the present embodiment, the position of the path arranged on the filter circuit board 6 of the television outlet 1 is different from that of the first embodiment.

図５（ａ）、（ｂ）は、本実施形態に係るテレビコンセント１のフィルタ回路基板６を示す。このフィルタ回路基板６は、両面パターン基板の場合の形態をあらわしたものであり、上述の第１の実施形態の第一の経路７ａ及び第二の経路７ｂに替えて、第一の経路７ａ及び第二の経路７ｂとはフィルタ回路基板上６に配された位置が異なる第一の経路１７ａ及び第二の経路１７ｂを有している。このフィルタ回路基板６に搭載される第一の経路１７ａ及び第二の経路１７ｂとは他の部材やフィルタ回路基板６の形状等は、上述の第１の実施形態のフィルタ回路基板６と同様である。なお、第一の経路１７ａは、２分配回路に接続された回路接続部６ｃ１から第１のスイッチ４ａに接続されたスイッチ接続部４１ａまでが第一の経路の第一パターン路１７１ａとなり、このスイッチ接続部４１ａから第１のテレビ端子２ａが接続された端子接続部６ａまでが第一の経路の第二パターン路１７２ａとされている。第二の経路１７ｂは、２分配回路に接続された回路接続部６ｃ２から第２のスイッチ４ｂに接続されたスイッチ接続部４１ｂまでが第二の経路の第一パターン路１７１ｂとなり、このスイッチ接続部４１ｂから第２のテレビ端子２ｂが接続された端子接続部６ｂまでが第二の経路の第二パターン路１７２ｂとされている。 5A and 5B show the filter circuit board 6 of the television outlet 1 according to the present embodiment. This filter circuit board 6 represents a form in the case of a double-sided pattern board, and instead of the first path 7a and the second path 7b of the first embodiment described above, the first path 7a and The second path 7b includes a first path 17a and a second path 17b that are arranged on the filter circuit board 6 at different positions. The first path 17a and the second path 17b mounted on the filter circuit board 6 are the same as the filter circuit board 6 of the first embodiment, except for the other members and the shape of the filter circuit board 6. is there. The first path 17a is a first pattern path 171a of the first path from the circuit connection part 6c1 connected to the two distribution circuit to the switch connection part 41a connected to the first switch 4a. From the connection portion 41a to the terminal connection portion 6a to which the first television terminal 2a is connected is the second pattern path 172a of the first path. The second path 17b is a first pattern path 171b of the second path from the circuit connection part 6c2 connected to the two distribution circuit to the switch connection part 41b connected to the second switch 4b, and this switch connection part The second pattern path 172b of the second path is from 41b to the terminal connection portion 6b to which the second television terminal 2b is connected.

本実施形態において、図５（ａ）に示すように、フィルタ回路基板６の幅方向の寸法が狭い部位では、第一の経路１７ａ及び第二の経路１７ｂのうち、第一の経路の第一パターン路１７１ａ及び第二の経路の第一パターン路１７１ｂがこのフィルタ回路基板６の片面に配されている。また、この部位では、図５（ｂ）に示すように、第一の経路の第一パターン路１７１ａ及び第二の経路の第一パターン路１７１ｂと略平行に、第一の経路の第二パターン路１７２ａがこのフィルタ回路基板の他面に配されている。すなわち、この部位では、第一の経路の第一パターン路１７１ａ及び第二の経路の第一パターン路１７１ｂと第一の経路の第二パターン路１７２ａとは、フィルタ回路基板６の両面に互いに分かれて、平面透視で略並行に配されている。 In the present embodiment, as shown in FIG. 5A, the first of the first paths among the first path 17 a and the second path 17 b is a part where the dimension in the width direction of the filter circuit board 6 is narrow. The pattern path 171 a and the first pattern path 171 b of the second path are arranged on one side of the filter circuit board 6. Further, in this part, as shown in FIG. 5B, the second pattern of the first path is substantially parallel to the first pattern path 171a of the first path and the first pattern path 171b of the second path. A path 172a is disposed on the other surface of the filter circuit board. That is, in this part, the first pattern path 171a of the first path, the first pattern path 171b of the second path, and the second pattern path 172a of the first path are separated from each other on both surfaces of the filter circuit board 6. And arranged substantially in parallel with a plan perspective.

このように、本実施形態においては、フィルタ回路基板６の幅方向の寸法が狭くなった部位で第一の経路の第一パターン路１７１ａ及び第二の経路の第一パターン路１７１ｂと第一の経路の第二パターン路１７２ａとがフィルタ回路基板６の両面に互いに分かれて配されており、３本の導電パターン間の電磁気的な干渉距離が互いに広く確保されるので、導電パターン間での干渉が減少して漏話の発生が少なくなる。これにより、伝送特性が劣化しにくくなり、第一の経路１７ａ及び第二の経路１７ｂを伝送される信号の伝送上の品質を低下しにくくすることが可能となる。 As described above, in the present embodiment, the first pattern path 171a of the first path, the first pattern path 171b of the second path, and the first pattern path at the portion where the dimension in the width direction of the filter circuit board 6 is narrowed. Since the second pattern path 172a of the path is separately arranged on both surfaces of the filter circuit board 6, and the electromagnetic interference distance between the three conductive patterns is ensured widely, interference between the conductive patterns Decreases and crosstalk is reduced. As a result, the transmission characteristics are hardly deteriorated, and it is possible to make it difficult to reduce the quality of transmission of signals transmitted through the first path 17a and the second path 17b.

なお、本発明は上記実施形態の構成に限定されるものではなく、発明の趣旨を変更しない範囲で適宜に種々の変形が可能である。例えば、テレビコンセント１は、フィルタ回路基板６が筐体１０に上述のようにハンダ接合されて固定されているものでなくてもよい。つまり、ハンダ接合用のランド６１ｂを形成しないようにすれば、それだけ、３本のパターンラインを平面透視で離間させるように、３本のパターンを離して形成することが可能となり、漏話の危険性をさらに低減できる。 In addition, this invention is not limited to the structure of the said embodiment, A various deformation | transformation is possible suitably in the range which does not change the meaning of invention. For example, the television outlet 1 may not be one in which the filter circuit board 6 is soldered and fixed to the housing 10 as described above. In other words, if the solder bonding land 61b is not formed, the three patterns can be formed apart from each other so that the three pattern lines are separated from each other in plan perspective, and the risk of crosstalk is increased. Can be further reduced.

（ａ）は本発明の第１の実施形態に係るテレビコンセントを示す正面図、（ｂ）は同テレビコンセントを示す側断面図。(A) is a front view which shows the television outlet concerning the 1st Embodiment of this invention, (b) is a sectional side view which shows the television outlet. 同上テレビコンセントを示す斜視図。The perspective view which shows a television outlet socket same as the above. 同上テレビコンセントのフィルタ回路基板を示す平面図。The top view which shows the filter circuit board of a television outlet same as the above. 同上テレビコンセントのフィルタ回路基板の幅方向の寸法が狭い部位の一部分を示す断面図。Sectional drawing which shows a part of site | part with a narrow dimension of the width direction of the filter circuit board of a television outlet same as the above. （ａ）は本発明の第２の実施形態に係るテレビコンセントのフィルタ回路基板を示す正面図、（ｂ）は同フィルタ回路基板を示す背面図。(A) is a front view which shows the filter circuit board of the television outlet concerning the 2nd Embodiment of this invention, (b) is a rear view which shows the same filter circuit board. （ａ）は従来のテレビコンセントの一例を示す正面図、（ｂ）は同テレビコンセントを示す側面図、（ｃ）は同テレビコンセントを示す斜視図。(A) is a front view which shows an example of the conventional television outlet, (b) is a side view which shows the television outlet, (c) is a perspective view which shows the television outlet. 同上テレビコンセントのフィルタ回路基板を示す平面図。The top view which shows the filter circuit board of a television outlet same as the above. （ａ）は同上テレビコンセントにカバーを配したときの正面図、（ｂ）は同テレビコンセントを壁面に設置したときを示す図。(A) is a front view when a cover is placed on the TV outlet, and (b) is a view showing the TV outlet installed on a wall surface.

Explanation of symbols

１テレビコンセント
２ａ第１のテレビ端子
２ｂ第２のテレビ端子
２ｃ入力端子
４ａ第１の切り替えスイッチ
４ｂ第２の切り替えスイッチ
５２分割回路基板
６フィルタ回路基板
７ａ，１７ａ第一の経路
７ｂ，１７ｂ第二の経路
８ａ，８ｂフィルタ
９ハンダ
１０筐体
１０ｃボス
７１ａ，１７１ａ第一の経路の第一パターン路
７１ｂ，１７１ｂ第二の経路の第一パターン路
７２ａ，１７２ａ第一の経路の第二パターン路
７２ｂ，１７２ｂ第二の経路の第二パターン路
DESCRIPTION OF SYMBOLS 1 Television outlet 2a 1st television terminal 2b 2nd television terminal 2c Input terminal 4a 1st changeover switch 4b 2nd changeover switch 5 2 division | segmentation circuit board 6 Filter circuit board 7a, 17a 1st path | route 7b, 17b 1st Second path 8a, 8b Filter 9 Solder 10 Housing 10c Boss 71a, 171a First pattern path 71b, 171b First pattern path 72a, 172a Second path first pattern path 72b, 172b Second pattern path of second path

Claims

A first TV terminal and a second TV terminal provided so as to be exposed from the front surface of the housing;
An input terminal that is arranged on the back side of the casing so as to be exposed to the outside of the casing and connected to the coaxial cable is formed on the casing.
A 2-distribution circuit board having a 2-distribution circuit that is housed in a housing and that is connected to the input terminal and that distributes a signal that is sent via the coaxial cable into two;
A first path connecting the two distribution circuits and the first television terminal so that the signal can be transmitted, and unlike the first path, the signals can be transmitted between the two distribution circuit and the second television terminal. A filter circuit board housed in the housing, having a second path connected to the filter, and a filter that can be individually inserted into each of the first and second paths,
It is provided on the front surface of the housing so that it can be operated from the outside, is connected to the first path, and the first TV terminal is set to two-way communication and one-way communication depending on whether the filter is inserted into the first path. A first changeover switch for switching, a second television terminal provided on the front surface of the housing so as to be operable from the outside, connected to the second path, and whether the filter is inserted into the second path A second switch for switching between bidirectional communication and one-way communication,
The first changeover switch and the second changeover switch are both disposed in the vicinity of either the first TV terminal or the second TV terminal,
The housing has a portion between a portion where the other of the first TV terminal or the second TV terminal is provided and a portion where the first changeover switch and the second changeover switch are provided. In TV outlets molded so that the width dimension is narrow,
In the part where the dimension in the width direction of the filter circuit board is narrow, the first pattern path of the first path that connects the two distribution circuits to the first switch in the first path, and the second path Of these, the first pattern path of the second path connecting from the two distribution circuit to the second switch and the second pattern path of the first path connecting from the first switch to the first television terminal or the second And any one of the second pattern paths of the second path connected to the second television terminal from the switch of 2 is arranged so as to be substantially parallel to one side of the filter circuit board,
Either one of the second pattern path of the first path or the second pattern path of the second path arranged on one side of the narrow part of the width direction of the filter circuit board is the filter circuit board. The first path of the first path is arranged so as to run parallel to the positions separated by a predetermined dimension on both sides of the pattern path arranged along the approximate center of the width direction of the filter circuit board. A television outlet characterized in that a first pattern path and a first pattern path of a second path are respectively arranged.

A first TV terminal and a second TV terminal provided so as to be exposed from the front surface of the housing;
An input terminal that is arranged on the back side of the casing so as to be exposed to the outside of the casing and connected to the coaxial cable is formed on the casing.
A 2-distribution circuit board having a 2-distribution circuit that is housed in a housing and that is connected to the input terminal and that distributes a signal that is sent via the coaxial cable into two;
A first path connecting the two distribution circuits and the first television terminal so that the signal can be transmitted, and unlike the first path, the signals can be transmitted between the two distribution circuit and the second television terminal. A filter circuit board housed in the housing, having a second path connected to the filter, and a filter that can be individually inserted into each of the first and second paths,
It is provided on the front surface of the housing so that it can be operated from the outside, is connected to the first path, and the first TV terminal is set to two-way communication and one-way communication depending on whether the filter is inserted into the first path. A first changeover switch for switching, a second television terminal provided on the front surface of the housing so as to be operable from the outside, connected to the second path, and whether the filter is inserted into the second path A second switch for switching between bidirectional communication and one-way communication,
The first changeover switch and the second changeover switch are both disposed in the vicinity of either the first TV terminal or the second TV terminal,
The housing has a portion between a portion where the other of the first TV terminal or the second TV terminal is provided and a portion where the first changeover switch and the second changeover switch are provided. In TV outlets molded so that the width dimension is narrow,
In the part where the dimension in the width direction of the filter circuit board is narrow, the first pattern path of the first path that connects the two distribution circuits to the first switch in the first path, and the second path Of these, the first pattern path of the second path connected from the two distribution circuits to the second switch is arranged on one surface of the filter circuit board,
Either the second pattern path of the first path connecting from the first switch to the first TV terminal or the second pattern path of the second path connecting from the second switch to the second TV terminal. One pattern path is arranged on the other surface opposite to one surface of the filter circuit board so as to be substantially parallel to the first pattern path of the first path and the first pattern path of the second path in a plan view. TV outlet characterized by being.

The filter circuit board has a hole provided on a side edge thereof and a land which is a conductive pattern arranged around the hole, and a boss that is fitted to the hole is formed in the housing. The filter circuit board is fixed inside the casing by soldering the land and the boss in a state where the hole and the boss are fitted.
In a portion where the dimension in the width direction of the filter circuit board is narrow, the first pattern path of the first path and the first pattern path of the second path are arranged near the both side edges of the filter circuit board. The second pattern path of the first path or the second pattern path of the second path is arranged in a plan view through the first path. 3. The television according to claim 1, wherein the first pattern path and the first pattern path of the second path are arranged so as to run in parallel at a substantially center of the position where the first pattern path and the second pattern of the second path are arranged. Outlet.