JP2001124635A - Terminal block - Google Patents
Terminal blockInfo
- Publication number
- JP2001124635A JP2001124635A JP30161699A JP30161699A JP2001124635A JP 2001124635 A JP2001124635 A JP 2001124635A JP 30161699 A JP30161699 A JP 30161699A JP 30161699 A JP30161699 A JP 30161699A JP 2001124635 A JP2001124635 A JP 2001124635A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- temperature
- terminal block
- temperature sensor
- external conductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
(57)【要約】
【課題】 端子台の端子金具の温度を精度よく測定する
ことのできる端子台を、端子台全体を大型化することな
く、低コストで提供する。
【解決手段】 ケース２の一部に湾曲形状を有する板バ
ネ２ｈを形成し、形成された板バネ２ｈの湾曲形状の内
側に温度センサ３ｂのセンサ部を配置する。ケース２の
内部には、振り子４ｈｃと端子部４ｈａとによって外部
導線（熱電対）１０ｈの基準温度側の接点１０ｈａを挟
み込む端子金具４ｈが配置される。温度センサ３ｂは、
板バネ２ｈの弾性力によって端子金具４ａの側面に押し
付けられて配置される。
(57) [Problem] To provide a terminal block capable of accurately measuring the temperature of a terminal fitting of a terminal block at a low cost without increasing the size of the entire terminal block. SOLUTION: A leaf spring 2h having a curved shape is formed in a part of a case 2, and a sensor portion of a temperature sensor 3b is arranged inside the curved shape of the formed leaf spring 2h. In the inside of the case 2, a terminal fitting 4h that sandwiches the contact 10ha of the external conductor (thermocouple) 10h on the reference temperature side with the pendulum 4hc and the terminal portion 4ha is arranged. The temperature sensor 3b
It is arranged by being pressed against the side surface of the terminal fitting 4a by the elastic force of the leaf spring 2h.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、端子金具の温度を
温度センサにより検知できるようにした端子台に関し、
特に、端子金具に接続された熱電対の基準温度となる端
子金具の温度を精度よく検知でき、熱電対による温度測
定精度を向上させることが可能な端子台に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal block capable of detecting the temperature of a terminal fitting with a temperature sensor.
In particular, the present invention relates to a terminal block that can accurately detect a temperature of a terminal fitting that is a reference temperature of a thermocouple connected to the terminal fitting, and can improve temperature measurement accuracy by the thermocouple.
【０００２】[0002]
【従来の技術】生産設備等の測定対象から外部導線によ
って引き出された測定信号を制御装置に取り込むため、
制御装置の入力部には、この外部導線を接続する端子台
が用いられる。このような端子台の一例として、端子台
表面での金属導電部の露出がなく、電気的絶縁性に優れ
るインナー式端子台が挙げられる。インナー式端子台
は、複数の端子金具を本体内部に整列状態で収納し、そ
の各端子金具ごとに、外部導線の挿入口と、本体内部で
端子金具に外部導線を接触させる機構を構成するねじの
挿入口とを設けたものであり、外部導線の挿入口から先
端部の被覆を剥がした外部導線を端子金属内部に挿入し
た状態で、ねじの挿入口からねじをねじ込むことによ
り、端子金属内部で外部導線を端子金属に押しつけて、
外部導線と端子金属との電気的接続を行う。2. Description of the Related Art In order to take in a control signal a measurement signal extracted from an object to be measured such as a production facility by an external conductor,
A terminal block for connecting the external conductor is used for an input unit of the control device. As an example of such a terminal block, there is an inner terminal block having no electrical conductive portion exposed on the surface of the terminal block and having excellent electrical insulation. The inner-type terminal block houses a plurality of terminal fittings in an aligned state inside the main body, and for each of the terminal fittings, a screw constituting an insertion opening of an external conductor and a mechanism for contacting the external conductor with the terminal fitting inside the main body. When the external conductor whose end is stripped from the external conductor insertion hole is inserted into the terminal metal and the screw is screwed in from the screw insertion hole, the terminal metal Press the external conductor against the terminal metal with
Make the electrical connection between the external conductor and the terminal metal.
【０００３】測定対象から引き出される測定信号の１つ
に、測定対象の温度を示す温度信号がある。一般に、測
定対象の温度測定は熱電対によって行われることが多
く、この場合、熱電対に生じた熱起電力が測定信号たる
温度信号に該当する。熱電対による温度測定は、測定対
象側の接点を測定対象に配置し、基準温度側の接点の温
度及び熱起電力を測定することにより行うこととなるた
め、算出される測定対象の温度の測定誤差を小さく抑え
るためには、基準温度が精度よく測定されなければなら
ない。[0003] One of the measurement signals derived from a measurement object is a temperature signal indicating the temperature of the measurement object. Generally, temperature measurement of a measurement target is often performed by a thermocouple. In this case, the thermoelectromotive force generated in the thermocouple corresponds to a temperature signal as a measurement signal. Temperature measurement using a thermocouple is performed by placing the contact on the measurement target side on the measurement target and measuring the temperature and the thermoelectromotive force of the contact on the reference temperature side. In order to keep the error small, the reference temperature must be accurately measured.
【０００４】基準温度の測定は、サーミスタ等の温度セ
ンサにより端子金具の温度を直接測定することにより行
うこととなる。しかし、制御装置の内部温度は、電源等
の発熱部品の設置位置に応じて場所毎に異なっているた
め、制御装置の入力部に取付けられている端子台の端子
金具の温度も場所によって異なっている。また、端子台
が長い場合には、１つの端子台の中でも各端子金具の温
度が異なることも生じる。このため、正確な基準温度測
定を行うためには、温度センサをできるだけ基準温度側
の端子金具に近接させて配置することが必要とされる。[0004] The measurement of the reference temperature is performed by directly measuring the temperature of the terminal fitting with a temperature sensor such as a thermistor. However, since the internal temperature of the control device varies from place to place depending on the location of the heat-generating components such as a power supply, the temperature of the terminal fittings of the terminal block attached to the input section of the control device also varies from place to place. I have. Further, when the terminal block is long, the temperature of each terminal fitting may be different even in one terminal block. Therefore, in order to perform accurate reference temperature measurement, it is necessary to dispose the temperature sensor as close as possible to the terminal fitting on the reference temperature side.
【０００５】このような従来技術としては、まず実開平
５−３４５４０号に開示された発明がある。この従来技
術では、熱電対を使用する際に、端子台の端部の端子金
具にＵ字状の溝を形成し、この溝に温度センサを収納し
て端子金具の温度を測定する。As such a prior art, there is an invention disclosed in Japanese Utility Model Laid-Open No. 5-34540. In this prior art, when a thermocouple is used, a U-shaped groove is formed in a terminal fitting at an end of a terminal block, and a temperature sensor is housed in this groove to measure the temperature of the terminal fitting.
【０００６】また、他の従来技術として、実開平５−３
６３２９号に開示された発明がある。この従来技術で
は、熱電対を使用する際に、端子金具の温度を直接測定
するための温度測定ユニットを装着する。Another conventional technique is disclosed in Japanese Utility Model Laid-Open No. 5-3.
There is an invention disclosed in US Pat. In this conventional technique, when a thermocouple is used, a temperature measurement unit for directly measuring the temperature of a terminal fitting is mounted.
【０００７】[0007]
【発明が解決しようとする課題】しかし、前者の従来技
術では、端子台の端部に位置する端子金具の温度を測定
するものであるため、複数の端子金具の温度が場所によ
って異なる場合には端部以外の端子金具の温度を精度よ
く測定することはできず、また、精度よく測定するため
には全ての端子金具にＵ字状の溝を形成しなければなら
ないため、端子台が大型になるという問題点がある。However, in the former conventional technique, the temperature of the terminal fitting located at the end of the terminal block is measured. It is not possible to accurately measure the temperature of terminal fittings other than the ends, and in order to measure accurately, all terminal fittings must be formed with U-shaped grooves. There is a problem that becomes.
【０００８】また、サーミスタ等の温度センサのセンサ
部は樹脂封止されていることが多いが、その中にはセン
サ部の形状が一定していないものもある。そのため、セ
ンサ形状のばらつきによっては、Ｕ字状の溝に温度セン
サを収納させたときに端子金具と温度センサの接触が十
分でないという問題点もある。Further, the sensor portion of a temperature sensor such as a thermistor is often sealed with a resin, but among them, the shape of the sensor portion is not constant. For this reason, depending on variations in the sensor shape, there is also a problem that when the temperature sensor is housed in the U-shaped groove, the contact between the terminal fitting and the temperature sensor is not sufficient.
【０００９】さらに、後者の従来技術では、複数の端子
金具の温度を個別に測定することは可能であるが、温度
測定ユニットを装着する構成であるため、構成が複雑
で、端子台が大型になるという問題点がある。Further, in the latter conventional technique, it is possible to individually measure the temperatures of a plurality of terminal fittings, but since the temperature measuring unit is mounted, the configuration is complicated and the terminal block is large. There is a problem that becomes.
【００１０】ここで、端子台の大型化は、他の通常の端
子台との互換性の喪失につながり、制御装置の入力部と
しての汎用性がなくなるという問題も生じる。本発明
は、このような点に鑑みてなされたものであり、従来の
端子台と比較して大型化することなく、簡単な構成で端
子金具の温度を精度よく測定することが可能な端子台を
提供することを目的とする。Here, an increase in the size of the terminal block leads to a loss of compatibility with other ordinary terminal blocks, and a problem arises that the versatility as an input section of the control device is lost. The present invention has been made in view of such a point, and a terminal block capable of accurately measuring the temperature of a terminal fitting with a simple configuration without increasing the size compared to a conventional terminal block. The purpose is to provide.
【００１１】[0011]
【課題を解決するための手段】本発明では上記課題を解
決するために、外部導線を挿入する外部導線挿入口と、
前記外部導線を内部の導体部に接触させる機構を構成す
る端子ねじが挿入される端子ねじ挿入口とをそれぞれ有
する複数の端子金具と、前記複数の金属端子を整列状態
で内部に収納するケースとからなる端子台において、前
記金属端子と前記外部導線との接触個所に対する前記金
属端子の外側であって、かつ前記接触個所の近傍に位置
する前記ケースの一部分に弾性力を有する可動部材を設
け、前記可動部材によって前記端子金具に押し付けられ
つつ、前記端子金具と前記可動部材との間に配置され、
前記端子金具の温度を検出する温度センサを設けたこと
を特徴とする端子台が提供される。According to the present invention, in order to solve the above-mentioned problems, an external conductor insertion slot for inserting an external conductor is provided.
A plurality of terminal fittings each having a terminal screw insertion hole into which a terminal screw constituting a mechanism for bringing the external conductor into contact with the internal conductor portion, and a case for housing the plurality of metal terminals therein in an aligned state. In the terminal block, a movable member having an elastic force is provided on a part of the case located outside the metal terminal with respect to a contact point between the metal terminal and the external conductor, and near the contact point, While being pressed against the terminal fitting by the movable member, disposed between the terminal fitting and the movable member,
A terminal block provided with a temperature sensor for detecting a temperature of the terminal fitting is provided.
【００１２】ここで、可動部材は、その弾性力によって
温度センサを端子金具の外面に押し付け、温度センサが
押しつけられた端子金具の内面には外部導線が接触され
ることとなるため、温度センサは外部導線が接触してい
る端子金具の温度を直接測定することとなる。Here, the movable member presses the temperature sensor against the outer surface of the terminal fitting by its elastic force, and the external conductor is brought into contact with the inner surface of the terminal fitting against which the temperature sensor is pressed. The temperature of the terminal fitting with which the external conductor is in contact is directly measured.
【００１３】また、前記可動部材は、中央部に湾曲部を
有する板バネ構造であり、前記温度センサは前記湾曲部
の内側に配置されることを特徴とする端子台が提供され
る。[0013] Further, a terminal block is provided in which the movable member has a leaf spring structure having a curved portion at a central portion, and the temperature sensor is disposed inside the curved portion.
【００１４】[0014]
【発明の実施の形態】以下、本発明の実施の形態を図面
を用いて説明する。図２は、本形態における端子台１の
正面図であり、図１は、図２の端子台１におけるＡ−Ａ
断面図である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a front view of the terminal block 1 in the present embodiment, and FIG.
It is sectional drawing.
【００１５】端子台１は、外部導線の挿入口２Ａａ〜２
Ａｉ、ねじ挿入口２Ｂａ〜２Ｂｉ、板バネ２ａ〜２ｉを
有するケース２、ケース２の内部に収納される端子金具
４ａ〜４ｉ、端子金具の測定を行う温度センサ３ａ、３
ｂ、及び端子金具４ａ〜４ｉをケース２の内部に収納す
る底面カバー５によって構成されており、複数の外部導
線１０ａ〜１０ｉが装着される。ここで、弾性力を有す
る可動部材としての板バネ２ａ〜２ｉは、ケース２の一
部を加工して形成することとしても良いし、ケース２を
形成する際にモールド成形することとしても良い。ま
た、端子金具４ｈは、外部導線１０ｈと接触する端子部
４ｈａ、ねじ止め部４ｈｂ、外部導線１０ｈを固定する
振り子４ｈｃ、及びねじ止め部４ｈｂにねじ込まれるこ
とにより振り子４ｈｃを加圧するねじ４ｈｄによって構
成されている。その他の端子金具４ａ〜４ｇ、４ｉにつ
いても端子金具４ｈと同様な構成となる。The terminal block 1 is provided with insertion openings 2Aa-2A
Ai, screw insertion ports 2Ba to 2Bi, case 2 having leaf springs 2a to 2i, terminal fittings 4a to 4i housed inside case 2, temperature sensors 3a and 3 for measuring terminal fittings
b, and a bottom cover 5 that houses the terminal fittings 4a to 4i inside the case 2, and a plurality of external conductors 10a to 10i are attached. Here, the leaf springs 2 a to 2 i as movable members having elastic force may be formed by processing a part of the case 2, or may be molded when the case 2 is formed. The terminal fitting 4h is composed of a terminal portion 4ha in contact with the external conductor 10h, a screw portion 4hb, a pendulum 4hc for fixing the external conductor 10h, and a screw 4hd for pressing the pendulum 4hc by being screwed into the screw portion 4hb. Have been. The other terminal fittings 4a to 4g, 4i have the same configuration as the terminal fitting 4h.
【００１６】ケース２及び底面カバー５の材質として
は、絶縁特性を有し、かつある程度の弾性力があるもの
であれば、ナイロン等特に制限なく使用できる。端子部
４ｈａ及びねじ止め部４ｈｂについては、ＪＩＳで規定
されている銅、銅合金等の高い導電性を有するものを使
用することができる。振り子４ｈｃ、ねじ４ｈｄについ
ては、ねじ止め時の加圧により変形しない程度の機械的
強度及び腐食性がある材質であれば特に制限なく使用で
きる。また、温度センサ３ａ，３ｂとしては、一定の温
度使用範囲において安定した検出特性を示すものであれ
ば特に制限なく使用できる。このようなものとしては、
−６０℃〜１５０℃程度の温度範囲で使用できるサーミ
スタが好適である。この温度センサは、必要に応じて端
子部と板バネとの間に挿入される。測定対象に設置され
る熱電対としては、一般的に使用されているニッケル・
クロムとニッケル・アルミとの組み合わせ、ニッケル・
クロムとコンスタンタンとの組み合わせ、鉄とコンスタ
ンタンとの組み合わせ等特に制限なく使用できる。As the material of the case 2 and the bottom cover 5, nylon or the like can be used without particular limitation as long as it has insulating properties and has a certain elasticity. As the terminal portion 4ha and the screwing portion 4hb, those having high conductivity such as copper and copper alloy specified by JIS can be used. The pendulum 4hc and the screw 4hd can be used without any particular limitation as long as the material has mechanical strength and corrosiveness to such an extent that it is not deformed by pressurization at the time of screwing. The temperature sensors 3a and 3b can be used without particular limitation as long as they exhibit stable detection characteristics in a certain temperature use range. As such,
A thermistor that can be used in a temperature range of about −60 ° C. to about 150 ° C. is preferable. The temperature sensor is inserted between the terminal and the leaf spring as needed. As a thermocouple installed on the measurement target, nickel
Combination of chromium and nickel aluminum, nickel
A combination of chromium and constantan, a combination of iron and constantan, and the like can be used without any particular limitation.
【００１７】次に、端子台１を構成する各構成要素の配
置について説明する。図１に示すように、端子金具４ｈ
はケース２及び底面カバー５によって囲まれ、保持され
る。Next, the arrangement of each component constituting the terminal block 1 will be described. As shown in FIG.
Is surrounded and held by the case 2 and the bottom cover 5.
【００１８】端子部４ｈａの上部にはねじ止め部４ｈｂ
が配置され、振り子４ｈｃは、その支点４ｈｅをねじ止
め部４ｈｂによって保持される。ねじ止め部４ｈｂに
は、ねじ穴が形成されており、ねじ４ｈｄはケース２の
ねじ挿入口２Ｂｂからねじ止め部４ｈｂのねじ穴にねじ
込まれる。ねじ込まれたねじ４ｈｄは、振り子４ｈｃに
達し、振り子４ｈｃを加圧する。加圧された振り子４ｈ
ｃは支点４ｈｅを中心に回転し、端子部４ｈａとの間で
挿入されている外部導線１０ｈを挟み込み、これによ
り、外部導線１０ｈが端子金具４ｈに固定されることと
なる。ここで、外部導線１０ｈが熱電対である場合に
は、外部導線１０ｈと端子部４ｈａとの接点が熱電対の
基準温度側の接点１０ｈａとなる。A screwing portion 4hb is provided above the terminal portion 4ha.
Are arranged, and the fulcrum 4he of the pendulum 4hc is held by the screwing portion 4hb. A screw hole is formed in the screw portion 4hb, and the screw 4hd is screwed into the screw hole of the screw portion 4hb from the screw insertion port 2Bb of the case 2. The screw 4hd that has been screwed reaches the pendulum 4hc, and presses the pendulum 4hc. Pressed pendulum 4h
c rotates around the fulcrum 4he, and sandwiches the inserted external conductor 10h with the terminal 4ha, whereby the external conductor 10h is fixed to the terminal fitting 4h. Here, when the external conductor 10h is a thermocouple, the contact between the external conductor 10h and the terminal portion 4ha becomes the contact 10ha on the reference temperature side of the thermocouple.
【００１９】ケース２の板バネ２ｂは湾曲形状を有して
おり、その湾曲形状の内側が端子金具４ｈの端子部４ｈ
ａの側面と向かい合うように配置される。温度センサ３
ｂは、そのセンサ部である先端を板バネ２ｈが有する中
央部の湾曲形状の内側と端子部４ｈａの側面との間に配
置され、板バネ２ｈの弾性力によって端子部４ｈａの側
面に押し付けられることによって固定される。その際、
温度センサ３ｂは、外部導線（熱電対）１０ｈの基準温
度側の接点１０ｈａにできるだけ近い位置に配置される
ことが望ましい。The leaf spring 2b of the case 2 has a curved shape, and the inside of the curved shape is the terminal portion 4h of the terminal fitting 4h.
It is arranged so that it may face the side of a. Temperature sensor 3
b is disposed between the inside of the curved shape of the central portion of the leaf spring 2h and the side surface of the terminal portion 4ha, and is pressed against the side surface of the terminal portion 4ha by the elastic force of the leaf spring 2h. Fixed by that. that time,
It is desirable that the temperature sensor 3b is disposed at a position as close as possible to the contact 10ha on the reference temperature side of the external conductor (thermocouple) 10h.
【００２０】図３は、ケース２に端子金具４ｈ及び温度
センサ３ｂが収納される様子を示した組立図である。ケ
ース２の内部は、複数の領域に分割されており、各分割
領域毎に端子金具４ａ〜４ｉが収納される。なお、図３
では、図を簡略化するため端子金具４ｈのみを記載して
いる。FIG. 3 is an assembly view showing a state in which the terminal fitting 4h and the temperature sensor 3b are stored in the case 2. The inside of the case 2 is divided into a plurality of regions, and the terminal fittings 4a to 4i are stored in each of the divided regions. Note that FIG.
Here, only the terminal fitting 4h is described for simplifying the drawing.
【００２１】ケース２に端子金具４ａ〜４ｉが収納され
ると、ケース２の底面には底面カバー５が取付けられ、
ケース２内部に端子金具４ａ〜４ｉが保持される。ま
た、外部導線１０ｂ，１０ｈが熱電対である場合には、
ケース２の板バネ２ｂ，２ｈの内側には温度センサ３
ａ，３ｂが配置される。なお、図３では、図を簡略化す
るために温度センサ３ｂのみを記載している。When the terminal fittings 4a to 4i are stored in the case 2, a bottom cover 5 is attached to the bottom of the case 2,
Terminal fittings 4 a to 4 i are held inside case 2. When the external conductors 10b and 10h are thermocouples,
A temperature sensor 3 is provided inside the leaf springs 2b and 2h of the case 2.
a and 3b are arranged. In FIG. 3, only the temperature sensor 3b is shown for simplification of the drawing.
【００２２】図４は熱電対による温度測定の原理を示し
た概念図である。図４に示すように、測定対象６には熱
電対を構成する外部導線１０ｈ，１０ｉが接触している
（測定対象側の接点）。また、外部導線１０ｈの他端は
基準温度側の接点１０ｈａで、外部導線１０ｉの他端は
接点１０ｉａで、それぞれ端子金具４ｈ、４ｉに接続さ
れている。さらに、この端子金具４ｈには温度センサ３
ｂが接触している。端子金具４ｈ，４ｉ及び温度センサ
３ｂの出力端子は信号処理回路７に接続されている。FIG. 4 is a conceptual diagram showing the principle of temperature measurement by a thermocouple. As shown in FIG. 4, external conductors 10 h and 10 i forming a thermocouple are in contact with the measurement target 6 (contacts on the measurement target side). The other end of the external conductor 10h is a contact 10ha on the reference temperature side, and the other end of the external conductor 10i is a contact 10ia, which are connected to the terminal fittings 4h and 4i, respectively. Further, the temperature sensor 3 is attached to the terminal fitting 4h.
b is in contact. The output terminals of the terminal fittings 4h and 4i and the temperature sensor 3b are connected to the signal processing circuit 7.
【００２３】次に、図１、図４を用いて、端子台１の温
度測定動作について説明する。まず、熱電対を構成する
外部導線１０ｈ、１０ｉの測定対象側の接点が測定対象
６に配置される。これにより、測定対象６の熱が外部導
線１０ｈ，１０ｉの測定対象側の接点に伝わり、外部導
線１０ｈ，１０ｉにおける測定対象側の接点の温度が変
化する。これにより、外部導線１０ｈ，１０ｉの測定対
象側の接点と、基準温度側の接点１０ｈａ、１０ｉａと
の間に温度差が生じ、この温度差によって引き起こされ
る熱起電力によって、接点１０ｈａ、１０ｉａとの間に
電位差Ｖが生じる。この電位差Ｖは信号処理回路７に読
み込まれる。Next, the temperature measurement operation of the terminal block 1 will be described with reference to FIGS. First, the contacts on the measurement target side of the external conductors 10h and 10i constituting the thermocouple are arranged on the measurement target 6. Thereby, the heat of the measurement target 6 is transmitted to the contact of the external conductors 10h and 10i on the measurement target side, and the temperature of the contact of the external conductors 10h and 10i on the measurement target changes. As a result, a temperature difference is generated between the contacts on the measurement target side of the external conductors 10h and 10i and the contacts 10ha and 10ia on the reference temperature side. A potential difference V occurs between them. This potential difference V is read into the signal processing circuit 7.
【００２４】また、基準温度側の接点１０ｈａの温度
は、板バネ２ｈによって押し付けられ、接点１０ｈａに
近接して配置された温度センサ３ｂにより検出され、検
出結果は同じく信号処理回路７に読み込まれる。これら
の電位差Ｖ及び基準温度を読み取った信号処理回路７
は、電位差Ｖ及び基準温度に基づいて測定対象６の温度
を算出する。The temperature of the contact 10ha on the reference temperature side is pressed by the leaf spring 2h and detected by the temperature sensor 3b disposed close to the contact 10ha, and the detection result is similarly read into the signal processing circuit 7. The signal processing circuit 7 which reads the potential difference V and the reference temperature
Calculates the temperature of the measurement target 6 based on the potential difference V and the reference temperature.
【００２５】なお、本形態では、端子台内部に端子金具
が１列に配列されることとしたが、端子金具が２列以上
に配列されることとしても良い。また、本形態では、１
つの端子台に対して温度センサを２つ配置する場合につ
いて説明したが、温度センサの配置数、配置個所は本形
態に限定されることなく、測定対象に応じて任意の数を
任意の個所に配置することができる。In this embodiment, the terminal fittings are arranged in one row inside the terminal block. However, the terminal fittings may be arranged in two or more rows. In this embodiment, 1
The case where two temperature sensors are arranged for one terminal block has been described. However, the number and location of the temperature sensors are not limited to this embodiment, and an arbitrary number may be set at an arbitrary location according to the measurement target. Can be arranged.
【００２６】なお、温度センサを配置する個所が予め決
められている場合には、端子台全体に板バネを設けるの
ではなく、温度センサの配置個所にのみ板バネを形成す
るようにしても良い。When the place where the temperature sensor is arranged is predetermined, the leaf spring may be formed only at the place where the temperature sensor is arranged, instead of providing the leaf spring on the entire terminal block. .
【００２７】[0027]
【発明の効果】このように、本形態では、ケースに弾性
力を有する可動部材を形成し、この可動部材によって、
温度センサを端子金具の側面に押し付けて配置すること
としたため、ケースの内部に温度センサを配置する新た
な空間を設ける必要がなく、温度センサを配置した場合
でも従来の端子台と同じ大きさとすることができる。こ
れにより、温度センサを組み込まない端子台としても使
用することができ、通常の小型、低コストの標準品とし
て提供できる。As described above, in this embodiment, the movable member having the elastic force is formed in the case, and the movable member
Since the temperature sensor is pressed against the side of the terminal fittings, there is no need to provide a new space for the temperature sensor inside the case, and even when the temperature sensor is placed, the size is the same as the conventional terminal block be able to. As a result, it can be used as a terminal block that does not incorporate a temperature sensor, and can be provided as a normal small-sized, low-cost standard product.
【００２８】また、温度センサをケースに形成された可
動部材によって端子金具の側面に押し付けることとした
ため、ケースの外部からの温度センサの取り付けが容易
になる。Further, since the temperature sensor is pressed against the side surface of the terminal fitting by the movable member formed on the case, it is easy to attach the temperature sensor from outside the case.
【００２９】さらに、可動部材は板バネ構造で中央部に
湾曲形状を有し、温度センサのセンサ部は板バネの湾曲
部の内側によって端子金具の側面に押し付けられること
としたため、センサ形状が均一でない場合であっても、
温度センサを熱電対の基準温度側の接点に近接して配置
することが可能となる。Further, the movable member has a leaf spring structure and has a curved shape at the center, and the sensor portion of the temperature sensor is pressed against the side surface of the terminal fitting by the inside of the curved portion of the leaf spring, so that the sensor shape is uniform. If not,
The temperature sensor can be arranged close to the contact on the reference temperature side of the thermocouple.
【００３０】また、本発明による端子台は、露出してい
る金属部分が少ないため外気の温度影響が少なく、カバ
ー等を付加する必要がないため、高精度、小型化、低コ
ストの端子台とすることができる。Further, the terminal block according to the present invention has a small number of exposed metal parts, so that it is less affected by the temperature of the outside air, and it is not necessary to add a cover or the like. can do.
【図１】図２の端子台におけるＡ−Ａ断面図である。FIG. 1 is a sectional view of the terminal block of FIG. 2 taken along line AA.
【図２】本発明における端子台の正面図である。FIG. 2 is a front view of a terminal block according to the present invention.
【図３】ケースに端子金具及び温度センサが収納される
様子を示した組立図である。FIG. 3 is an assembly view showing a state in which a terminal fitting and a temperature sensor are stored in a case.
【図４】熱電対による温度測定の原理を示した概念図で
ある。FIG. 4 is a conceptual diagram showing the principle of temperature measurement by a thermocouple.
１ 端子台 ２ ケース ２ａ，２ｂ 板バネ ３ａ，３ｂ 温度センサ ４ａ〜４ｉ 端子金具 ４ｈｃ 振り子 ５ 底面カバー ６ 測定対象 ７ 信号処理回路 １０ａ〜１０ｉ 外部導線 DESCRIPTION OF SYMBOLS 1 Terminal block 2 Case 2a, 2b Leaf spring 3a, 3b Temperature sensor 4a-4i Terminal fitting 4hc Pendulum 5 Bottom cover 6 Measurement object 7 Signal processing circuit 10a-10i External conductor
───────────────────────────────────────────────────── フロントページの続き (72)発明者 伊藤 信吉 神奈川県川崎市川崎区田辺新田１番１号 富士電機株式会社内 (72)発明者 藤森 光章 東京都武蔵野市中町２丁目９番32号 横河 電機株式会社内 (72)発明者 亀田 英行 東京都千代田区岩本町２丁目１番３号 日 本ワイドミュラー株式会社内 Ｆターム(参考） 5E086 CC45 DD33 DD49 JJ26 LL05 LL14 LL17 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shinkichi Ito 1-1-1, Tanabe-Nitta, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Inside Fuji Electric Co., Ltd. (72) Inventor Mitsuaki Fujimori 2-9-132 Nakamachi, Musashino-shi, Tokyo No. Yokogawa Electric Corporation (72) Inventor Hideyuki Kameda 2-3-1 Iwamotocho, Chiyoda-ku, Tokyo F-term in Japan Weidmüller Co., Ltd. 5E086 CC45 DD33 DD49 JJ26 LL05 LL14 LL17 LL17
Claims (2)
前記外部導線を内部の導体部に接触させる機構を構成す
る端子ねじが挿入される端子ねじ挿入口とをそれぞれ有
する複数の端子金具と、前記複数の金属端子を整列状態
で内部に収納するケースとからなる端子台において、 前記金属端子と前記外部導線との接触個所に対する前記
金属端子の外側であって、かつ前記接触個所の近傍に位
置する前記ケースの一部分に弾性力を有する可動部材を
設け、前記可動部材によって前記端子金具に押し付けら
れつつ、前記端子金具と前記可動部材との間に配置さ
れ、前記端子金具の温度を検出する温度センサを設けた
ことを特徴とする端子台。An external conductor insertion slot for inserting an external conductor,
A plurality of terminal fittings each having a terminal screw insertion hole into which a terminal screw constituting a mechanism for bringing the external conductor into contact with the internal conductor portion, and a case for housing the plurality of metal terminals therein in an aligned state. In the terminal block, a movable member having an elastic force is provided on a part of the case located outside the metal terminal with respect to a contact point between the metal terminal and the external conductor and near the contact point, A terminal block provided with a temperature sensor disposed between the terminal fitting and the movable member while being pressed against the terminal fitting by the movable member, and detecting a temperature of the terminal fitting.
る板バネ構造であり、前記温度センサは前記湾曲部の内
側に配置されることを特徴とする請求項１記載の端子
台。2. The terminal block according to claim 1, wherein the movable member has a leaf spring structure having a curved portion at a central portion, and the temperature sensor is disposed inside the curved portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30161699A JP4540774B2 (en) | 1999-10-22 | 1999-10-22 | Terminal block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30161699A JP4540774B2 (en) | 1999-10-22 | 1999-10-22 | Terminal block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001124635A true JP2001124635A (en) | 2001-05-11 |
| JP4540774B2 JP4540774B2 (en) | 2010-09-08 |
Family
ID=17899098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30161699A Expired - Lifetime JP4540774B2 (en) | 1999-10-22 | 1999-10-22 | Terminal block |
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| Country | Link |
|---|---|
| JP (1) | JP4540774B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009165338A (en) * | 2007-12-11 | 2009-07-23 | Mitsubishi Electric Corp | Compressor, torque control device, and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0534540U (en) * | 1991-10-15 | 1993-05-07 | 横河電機株式会社 | Terminal block for thermocouple |
| JPH0536329U (en) * | 1991-10-18 | 1993-05-18 | 横河電機株式会社 | Industrial signal converter |
| JPH06251817A (en) * | 1993-02-26 | 1994-09-09 | Yokogawa Electric Corp | Terminal block |
| JPH07209095A (en) * | 1994-01-13 | 1995-08-11 | Rika Kogyo Kk | Temperature compensating device |
| JPH08111246A (en) * | 1994-10-11 | 1996-04-30 | Toyokuni Densen Kk | Cable connector |
-
1999
- 1999-10-22 JP JP30161699A patent/JP4540774B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0534540U (en) * | 1991-10-15 | 1993-05-07 | 横河電機株式会社 | Terminal block for thermocouple |
| JPH0536329U (en) * | 1991-10-18 | 1993-05-18 | 横河電機株式会社 | Industrial signal converter |
| JPH06251817A (en) * | 1993-02-26 | 1994-09-09 | Yokogawa Electric Corp | Terminal block |
| JPH07209095A (en) * | 1994-01-13 | 1995-08-11 | Rika Kogyo Kk | Temperature compensating device |
| JPH08111246A (en) * | 1994-10-11 | 1996-04-30 | Toyokuni Densen Kk | Cable connector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009165338A (en) * | 2007-12-11 | 2009-07-23 | Mitsubishi Electric Corp | Compressor, torque control device, and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4540774B2 (en) | 2010-09-08 |
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