JPH01292723A - Transfer relay - Google Patents

Abstract

PURPOSE:To enable the high density arrangement in a printed circuit board by building in a resistance one end of which is connected to an usually opened contact or an usually closed contact. CONSTITUTION:In a transfer relay 31 provided with an usually opened contact rl3-3 and an usually closed contact rl3-1 and a common movable contact rl3-2, a resistance R6 one end of which is connected to the said contact rl3-3 or rl3-1 is built in. That is, one end of the resistance R6 is connected to either of the said contacts rl3-3 and rl3-1 and the other end of the resistance R6 is connected to the earth terminal of the relay respectively, and R6 is built in the transfer relay. Therefore the wiring pattern or land for arrangement of the resistance R6 is made unnecessary. Thereby the high density arrangement can be made possible.

Description

【発明の詳細な説明】 〔概要〕 例えば、送信周波数と受信周波数とが僅かに異なる送受
信機を折り返し試験を行うための周波数変換回路に使用
されるトランスファリレーに関し、トランスファリレー
の常閉接点、又は常閉接点に終端抵抗の一端が接続され
た回路をプリントｘ板上に実装する際に高密度実装を図
ることを目的とし、 常閉接点と常閉接点とを備えた接点構造で可動接°点が
共用になっているトランスファリレー　において、該常
閉接点、又は常閉接点に一端が接続された抵抗を内蔵す
る様に構成する。[Detailed Description of the Invention] [Summary] For example, regarding a transfer relay used in a frequency conversion circuit for performing a foldback test on a transmitter/receiver whose transmitting frequency and receiving frequency are slightly different, the normally closed contact of the transfer relay or The purpose of this design is to achieve high-density mounting when mounting a circuit in which one end of a terminating resistor is connected to a normally closed contact on a printed circuit board. Transfer relays that share a common point are configured to have a built-in normally closed contact or a resistor whose one end is connected to the normally closed contact.

〔産業上の利用分野〕[Industrial application field]

本発明は例えば、送信周波数と受信周波数とが僅かに異
なる送受信機を折り返し試験を行うための周波数変換回
路に使用されるトランスファリレーに関するものである
。The present invention relates to, for example, a transfer relay used in a frequency conversion circuit for performing a repeat test on a transmitter/receiver whose transmitting frequency and receiving frequency are slightly different.

例えば、マイクロ波を用いて通信を行う際、送信周波数
と受信周波数とが僅かに異なる送受信機の折返し試験を
しなければならないことがある。For example, when communicating using microwaves, it may be necessary to perform a loopback test on a transmitter/receiver whose transmitting frequency and receiving frequency are slightly different.

この時、送信周波数、又は受信周波数に比べて低い周波
数ｆＬＯ局発信号を用いる周波数変換回路が必要となる
が、この回路からは周波数ｆ、の入力信号の漏洩成分２
周波数（ｒｔ　＋　ｒＬ）＋又は（ｆｉ　−ｆＬ）　（
７）不要側帯波が周波数（ｒｔ　−ｒＬ）。At this time, a frequency conversion circuit that uses a local oscillator signal with a frequency fLO that is lower than the transmitting frequency or the receiving frequency is required, but from this circuit, the leakage component 2 of the input signal of frequency f is
Frequency (rt + rL) + or (fi - fL) (
7) Unwanted sideband wave has frequency (rt - rL).

又は（ｆｉ　＋　ｆＬ　’）の希望側帯波に近接して現
れるが、希望側帯波に対する影響を少なくしてこの不要
側帯波を抑圧しなければならない。or (fi + fL') appears close to the desired sideband, but this unwanted sideband must be suppressed by reducing its influence on the desired sideband.

そこで、本出願人はフィルタを使用せずにこの不要側帯
波を抑圧する周波数変換回路について昭和６３年４月２
７日に出願を行った。第４図は本出願人が出願した周波
数変換回路ブロック図例で、これの詳細動作については
出願明細書に述べであるので概略動作について説明する
。Therefore, in April 2, 1988, the present applicant developed a frequency conversion circuit that suppresses these unnecessary sideband waves without using a filter.
I applied on the 7th. FIG. 4 is an example of a block diagram of a frequency conversion circuit filed by the applicant of the present invention, and the detailed operation thereof is described in the specification of the application, so the general operation will be explained.

図において、同相ハイブリッド１１で分岐した一方の入
力信号ｆ、をラットレース型ハイブリッド１２の入力端
子からソース接地されたＦＥＴ　１６．１７のドレイン
に加える。又５局発信号ｆＬを９０度ハイブリッド１５
．１８０度ハイブリッド１３を介してＦＥＴ１６、１７
のゲートに加える。In the figure, one input signal f, branched by the in-phase hybrid 11, is applied from the input terminal of the rat race type hybrid 12 to the drain of FET 16, 17 whose source is grounded. Also, the 5 station oscillation signal fL is 90 degrees hybrid 15
．． FET16, 17 via 180 degree hybrid 13
Add to the gate.

そこで、ＦＥＴ　１６．１７で増幅された局発信号と入
力信号とが、ドレインコンダクタンスの非線形により側
帯波が生ずるが、この側帯波を該入力端子に対してアイ
ソレーション端子になっている出力端子から取り出し、
９０度ハイブリッド１４に加える。Therefore, the local oscillation signal amplified by FET 16.17 and the input signal generate sideband waves due to the nonlinearity of the drain conductance, but these sideband waves are transmitted from the output terminal which is an isolation terminal with respect to the input terminal. take out,
Add to 90 degree hybrid 14.

一方、ミキサ１８も上記と同一の構成、同一の動作を行
って出力を９０度ハイブリッド１４に出力するので、こ
のハイブリッド１４から不要側帯波や漏洩入力信号が抑
圧された希望側帯波が得られる。On the other hand, the mixer 18 also has the same configuration and operates in the same manner as described above, and outputs its output to the 90-degree hybrid 14, so that the desired sideband wave in which unnecessary sideband waves and leakage input signals are suppressed can be obtained from the hybrid 14.

尚、終端抵抗Ｒ２を９０度ハイブリッド１４の端子■に
接続した時は周波数（ｒｔ　＋　ｒＬ）の希望側帯波が
、端子■に接続した時は周波数Ｃｒｔ　−ｒＬ）の希望
側帯波が得られるが、これらの周波数は９例えば７０Ｍ
Ｈｚ帯、１４０ＭＨｚ帯である。In addition, when the terminating resistor R2 is connected to the terminal ■ of the 90 degree hybrid 14, the desired sideband wave of the frequency (rt + rL) is obtained, and when it is connected to the terminal ■, the desired sideband wave of the frequency Crt - rL) is obtained. , these frequencies are 9 for example 70M
Hz band and 140MHz band.

又、！？１　は終端を氏抗を示す。or,! ? 1 indicates the end point.

ここで、装置の小型化に対応して、この回路をプリント
基板に実装する際にはできるだけ高密度実装する必要が
ある。Here, in response to the miniaturization of devices, when this circuit is mounted on a printed circuit board, it is necessary to mount it as densely as possible.

〔従来の技術〕[Conventional technology]

第５図は従来例の構成図、第６図は第５図の適用ブロッ
ク図を示す。以下、第４図、第６図を参照しながら第５
図の構成を説明する。FIG. 5 is a block diagram of a conventional example, and FIG. 6 is a block diagram to which FIG. 5 is applied. Below, with reference to Figures 4 and 6,
The configuration of the figure will be explained.

先ず、トランスファリレー２１は第５図に示す様に、１
在線Ｉ？Ｌ、、常閉接点ｒ　’　ｌ−３＋常常閉点ｒ　
’　ｌ−１＋可可動点ｒｌ＋４から構成されていて、常
閉接点。First, as shown in FIG. 5, the transfer relay 21
I on the line? L,, normally closed contact r' l-3 + normally closed point r
' It is composed of l-1 + movable point rl + 4, and is a normally closed contact.

又は常閉接点を終端抵抗Ｒ３で接地する際には外付けに
なる。Alternatively, when the normally closed contact is grounded with the terminating resistor R3, it is attached externally.

ここで、上記の様に第４図中の９０度ハイブリッド１４
から周波数（ｒｔ　＋　ｒＬ）の希望側帯波を取り出す
時と２周波数（ｆｉ　−ｆＬ）　　の希望側帯波を取り
出す時とでは終端抵抗Ｒ２の取付は端子が異なるが、こ
れを任意に切り替えられる様にすると、第６図に示すブ
ロック図となる。Here, as mentioned above, the 90 degree hybrid 14 in FIG.
The terminals for installing the terminating resistor R2 are different when extracting the desired sideband wave of frequency (rt + rL) and when extracting the desired sideband wave of two frequencies (fi - fL), but this can be switched arbitrarily. This results in a block diagram shown in FIG.

即ち、９０度ハイブリッド１４の端子■はリレー２１１
の可動接点ｒ’ｌ−２＋常閉接点ｒｌ、−Ｉとリレー２
１２の常閉接点２−３との接続部分を介して出力端子Ｏ
ＵＴに、端子■はリレー２１２の可動接点ｒ１２−□、
常間接点ｒｆｌｚ−１を介して一端が接地された終端抵
抗Ｒ２の他端に、リレー２１１の常閉接点ｒＪ１−３は
一端が接地された終端抵抗の他端にそれぞれ接続される
。In other words, the terminal ■ of the 90 degree hybrid 14 is connected to the relay 211.
Movable contact r'l-2 + normally closed contact rl, -I and relay 2
The output terminal O is connected to the normally closed contact 2-3 of 12.
In UT, terminal ■ is the movable contact r12-□ of relay 212,
The normally closed contacts rJ1-3 of the relay 211 are connected to the other end of the terminating resistor R2 whose one end is grounded via the normal contact rflz-1, and the other end of the terminating resistor R2 whose one end is grounded.

この時、９０度ハイブリッドの端子■から周波数Ｃｒ＝
　−ｂ　）の希望側帯波が出力されているとすると、ス
イッチ２４をオンにして、リレー２１Ｌ　２１２の捲線
ＲＬ＋、　ＲＬｚに駆動電流を流し、上記の接点を切り
替えて、端子■からの周波数（ｆｔ　＋　ｒＬ）の希望
側帯波が出力される。At this time, from the terminal ■ of the 90 degree hybrid, the frequency Cr=
-b) is output, turn on the switch 24, apply a drive current to the windings RL+ and RLz of the relays 21L and 212, switch the above contacts, and set the frequency (ft +rL) is output.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

さて、第６図の適用ブロック図中のトランスファリレー
２１１．２１２の京間接点、常閉接点に終端抵抗を接続
する為には平面的なスペース、この抵抗を固定し、配線
パターンに接続する為のランドや接地パターンなどが必
要となり、プリント基板が大きくなる。Now, in order to connect a terminating resistor to the transfer relays 211 and 212's normally closed contacts in the application block diagram of Fig. 6, we need a flat space to fix this resistor and connect it to the wiring pattern. Lands and grounding patterns are required, which increases the size of the printed circuit board.

即ち、トランスファリレーの常閉接点、又は常閉接点に
終端抵抗が接続された回路をプリント基板上に実装する
際に高密度実装を図ることが難しいと云う問題がある。That is, there is a problem in that it is difficult to achieve high-density mounting when mounting a normally closed contact of a transfer relay or a circuit in which a terminating resistor is connected to a normally closed contact on a printed circuit board.

本発明はトランスファリレーの常閉接点、又は常閉接点
に終端抵抗の一端が接続された回路をプリント基板上に
実装する際に高密度実装を図ることを目的とする。An object of the present invention is to achieve high-density mounting when mounting a normally closed contact of a transfer relay or a circuit in which one end of a terminating resistor is connected to the normally closed contact on a printed circuit board.

〔課題を解決する為の手段〕[Means to solve problems]

第１図は本発明の原理ブロック図である。 FIG. 1 is a block diagram of the principle of the present invention.

図中、３１は常開接点（ｒｊ！１−３）と常閉接点Ｃｒ
ｌ！、−１）と共用の可動接点（ｒｊ？３，２）とを持
ち、一端が該常開接点、又は常閉接点に接続された抵抗
（Ｒ６）を内蔵するトランスファリレーである。In the figure, 31 is a normally open contact (rj!1-3) and a normally closed contact Cr.
l! , -1) and a common movable contact (rj?3,2), one end of which is a built-in resistor (R6) connected to the normally open contact or the normally closed contact.

〔作用〕[Effect]

本発明はトランスファリレーの常開接点、又は常閉接点
に抵抗１？、の一端を、他端をリレーの接地端子にそれ
ぞれ接続して、この抵抗Ｒ５をトランスファリレーに内
蔵する様な構成にする。The present invention has a resistance of 1 to the normally open contact or normally closed contact of the transfer relay. , and the other end is connected to the ground terminal of the relay, so that this resistor R5 is built into the transfer relay.

そこで、抵抗を実装するために必要な配線パターンやラ
ンドが不要となり高密度実装を図ることが可能となる。This eliminates the need for wiring patterns and lands required for mounting resistors, making it possible to achieve high-density mounting.

〔実施例〕〔Example〕

第２図は本発明の実施例の構成図、第３図は第２図の適
用ブロック図を示す。尚、３２はスイッチである。FIG. 2 is a block diagram of an embodiment of the present invention, and FIG. 3 is a block diagram to which FIG. 2 is applied. Note that 32 is a switch.

先ず、第２図（ａｌは終端抵抗Ｒｔｈが膜回路の場合で
。First, in FIG. 2 (al is the case where the terminating resistor Rth is a membrane circuit.

第２図（ｂｌはチップ抵抗の場合を示す。前者の場合は
端子■、■がＴＡｉｉｌできる程度の孔のある膜回路基
Ｆｉ３１４を底板３１３に接触させ、孔に端子■、■を
通して半田付けして固定する。又、後者の場合には端子
■、■にチップ抵抗の両端を半田付けして固定する。尚
、端子■はプリン）７２仮（図示せず）上のアースに半
田付けされるとする。Figure 2 (bl shows the case of a chip resistor. In the former case, a membrane circuit board Fi314 with holes large enough to allow the terminals ■ and ■ to be TAiil is brought into contact with the bottom plate 313, and the terminals ■ and ■ are passed through the holes and soldered. In the latter case, solder both ends of the chip resistor to the terminals ■ and ■ to fix it. Note that the terminal ■ is soldered to the ground on the 72 temporary (not shown). shall be.

第３図は第２図の適用ブロック図を示す。FIG. 3 shows an application block diagram of FIG.

図において、１４は９０度ハイブリッド、　３１１．３
１２はトランスファリレー＋　Ｒ？＋　Ｒａは終端抵抗
、　ＲＬＩ。In the figure, 14 is a 90 degree hybrid, 311.3
12 is transfer relay + R? + Ra is the terminating resistor, RLI.

ＲＬ４はリレー３１１．３１２の捲線であるが１図に示
す様に終端抵抗がリレーに内蔵されているので、この抵
抗を接点と接地パターンとに接続する為の配線パターン
などが不要となり高密度実装を図ることができる。RL4 is a winding of relays 311 and 312, but as shown in Figure 1, the relay has a built-in terminating resistor, so there is no need for a wiring pattern to connect this resistor to the contact and ground pattern, allowing for high-density mounting. can be achieved.

〔発明の効果〕〔Effect of the invention〕

以上詳細に説明した様に本発明によればトランスファリ
レーの常開接点、又は常閉接点に終端抵抗が接続された
回路をプリント基板上に実装する際に高密度実装を図る
ことができると云う効果がある。As explained in detail above, according to the present invention, it is possible to achieve high-density mounting when mounting a circuit in which a terminating resistor is connected to a normally open contact or a normally closed contact of a transfer relay on a printed circuit board. effective.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の原理ブロック図、 第２図は本発明の実施例の構成図、 第３図は第２図の通用ブロック図、 第４図は周波数変換回路ブロック図例、第５図は従来例
の構成図、 第６図は第５図の適用ブロック図を示す。 図において、 ３１はトランスファリレー、 ｒｌｆｆ−３は常開接点、 Ｒ１３−１は常閉接点、 Ｒ１３−二は可動接点を示す。 木衾日月の＆チ里フ′ロック図 、第　　１　　図 イｌ 木全明／ｌ實絶９・拗檎洗図 第　　２　　長り 第２ｆ！］の連用プロ・９２図 第３Ｉ！ｌ はト皮（ズｌ桑回路ブロック図・滲］ 第　４　図 イゑ釆り１ｎ禰−成因 第Ｓ図 第５　図ｆ）連用ブロック図 第　６　図Fig. 1 is a principle block diagram of the present invention, Fig. 2 is a configuration diagram of an embodiment of the present invention, Fig. 3 is a general block diagram of Fig. 2, Fig. 4 is an example of a frequency conversion circuit block diagram, Fig. 5 6 shows a block diagram of a conventional example, and FIG. 6 shows an application block diagram of FIG. 5. In the figure, 31 is a transfer relay, rlff-3 is a normally open contact, R13-1 is a normally closed contact, and R13-2 is a movable contact. Mokuen Sun Moon's &Chiri's lock diagram, 1st figure l Kimizen Akira/l Jizetsu 9, Tsurugi wash figure 2 Length 2nd f! ] of Continuous Pro/92 Figure 3I! Figure 4: Figure 5: Figure 5: F) Replication block diagram: Figure 6

Claims (1)

【特許請求の範囲】 　常開接点（ｒｌ＿３＿−＿３）と常閉接点（ｒｌ＿３
＿−＿１）とを備えた接点構造で可動接点（ｒｌ＿３＿
−＿２）が共用になっているトランスファリレーにおい
て、 該常開接点、又は常閉接点に一端が接続された抵抗（Ｒ
＿６）を内蔵する構成にしたことを特徴とするトランス
ファリレー。[Claims] Normally open contact (rl_3_-_3) and normally closed contact (rl_3_3)
A movable contact (rl_3_
-_2) is shared, a resistor (R
_6) A transfer relay characterized by having a built-in configuration.