JP3117110U - Air volume adjustment device for house blower - Google Patents

Air volume adjustment device for house blower Download PDF

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JP3117110U
JP3117110U JP2005007929U JP2005007929U JP3117110U JP 3117110 U JP3117110 U JP 3117110U JP 2005007929 U JP2005007929 U JP 2005007929U JP 2005007929 U JP2005007929 U JP 2005007929U JP 3117110 U JP3117110 U JP 3117110U
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blower
voltage regulator
induction motor
phase
air volume
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是次 藤井
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株式会社 藤井精密
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25Greenhouse technology, e.g. cooling systems therefor

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Abstract

【課題】ハウス用送風機の風量を高価な三相用の摺動式電圧調整器や、ノイズが発生するインバーターを使用することなく、1個の安価な単相用摺動式電圧調整器を使用することにより、無段階での精密に調整できるようにする。
【解決手段】送風機を回転駆動する三相200Vの誘導モーターに入力される電源電圧を、その三相のうちの一相だけに接続配線した1個の単相用摺動式電圧調整器によって、無段調整できるように定めた。
【選択図】 図1
[PROBLEMS] To use one low-cost single-phase sliding voltage regulator without using an expensive three-phase sliding voltage regulator or a noise-generating inverter. By doing so, it is possible to make precise adjustments in a stepless manner.
A single-phase sliding voltage regulator in which a power supply voltage input to a three-phase 200V induction motor that rotationally drives a blower is connected and wired to only one of the three phases. It was determined that stepless adjustment was possible.
[Selection] Figure 1

Description

本考案はハウス用送風機の風量調整装置に関する。   The present invention relates to an air volume adjusting device for a fan for a house.

一般に、農作物を栽培するビニールハウス内には、三相200Vの交流誘導モーターを回転駆動源とする送風機(循環扇)の複数が設置されており、これによってハウス内の温度ムラや空気の滞溜を無くすほか、農作物の生育を促進するための微風が与えられている。   In general, in a greenhouse where crops are grown, a plurality of blowers (circulation fans) that use a three-phase 200V AC induction motor as a rotational drive source are installed. In addition, there is a breeze to promote the growth of crops.

このようなハウス用送風機の風量を調整するに当り、従来からトランス又は三相用摺動式電圧調整器によって、その誘導モーターに供給する電源電圧を変化させる方式と、インバーターにより調整された出力周波数の電力を誘導モーターへ供給して、その回転速度を変化させる方式との2種が採用されている通例である。   In adjusting the air volume of such a blower for a house, a method of changing the power supply voltage supplied to the induction motor by a transformer or a three-phase sliding voltage regulator, and an output frequency adjusted by an inverter are conventionally used. In general, two types of methods are used in which the electric power is supplied to the induction motor and its rotational speed is changed.

ところが、上記トランスによる電源電圧の変化方式では、その2次側から分岐するタップを手動操作して切り換える必要があるため、送風機の風量を無段階での精密に調整することができず、農作物に対してハウス外の自然な風と同じ有効な微風を与えられないのである。   However, in the method of changing the power supply voltage by the above transformer, since it is necessary to manually switch the tap branched from the secondary side, the air volume of the blower cannot be precisely adjusted in a stepless manner. On the other hand, the same effective breeze as the natural wind outside the house cannot be given.

この点、三相用の摺動式電圧調整器を使えば、送風機の風量を無段階に調整できるが、そのための電圧調整器自身は高価であり、三相200V電源回路への接続配線も複雑になる結果、いたづらなコストアップを余儀なくされる。   In this regard, if a three-phase sliding voltage regulator is used, the air volume of the blower can be adjusted steplessly, but the voltage regulator itself is expensive, and the connection wiring to the three-phase 200V power supply circuit is complicated. As a result, a tedious cost increase is required.

又、インバーター方式でも送風機の風量を無段階に調整できるが、その調整毎の頻繁にノイズが発生するため、ハウス内での作業者が携帯するラジオに悪影響を及ぼし、その音声の聴き取りが困難になる。   Also, even with the inverter method, the air volume of the blower can be adjusted steplessly, but noise frequently occurs at each adjustment, which adversely affects the radio carried by workers in the house and makes it difficult to hear the sound. become.

本考案はこのような諸問題の改良を企図しており、その目的を達成するために、請求項1では送風機を回転駆動する三相200Vの誘導モーターに入力される電源電圧を、その三相のうちの一相だけに接続配線した1個の単相用摺動式電圧調整器によって、無段調整できるように定めたことを特徴とする。   The present invention is intended to improve such problems, and in order to achieve the object, the power supply voltage input to the three-phase 200V induction motor that rotationally drives the blower is defined as the three-phase power supply voltage. It is characterized in that it is determined so that it can be continuously adjusted by one single-phase sliding voltage regulator connected and wired to only one phase.

又、請求項2では上記請求項1に従属する構成として、送風機回転駆動用誘導モーターをトルクモーターとし、摺動式電圧調整器に電源電圧の降下限度位置決めストッパーを設けたことを特徴とする。   According to a second aspect of the present invention, as a configuration dependent on the first aspect of the present invention, the induction motor for driving the fan rotation is a torque motor, and a sliding voltage regulator is provided with a power supply voltage drop limit positioning stopper.

更に、請求項3では同じく請求項1に従属する構成として、複数の送風機回転駆動用誘導モーターと摺動式電圧調整器との相互間へ、その誘導モーター毎の個別開閉スイッチを並列状態に接続配線したことを特徴とする。   Further, in claim 3, as a configuration subordinate to claim 1, individual open / close switches for each induction motor are connected in parallel between a plurality of blower rotation driving induction motors and a sliding voltage regulator. It is characterized by wiring.

上記請求項1の構成によれば、三相200Vの送風機回転駆動用誘導モーターへ入力される電源電圧を、1個の安価な単相用摺動式電圧調整器を使って、無段階での精密に調整することができ、その摺動式電圧調整器を三相のうちの一相だけに接続配線すれば足りるため、著しいコストダウンを得られる効果がある。   According to the configuration of claim 1, the power supply voltage input to the three-phase 200V blower rotation driving induction motor can be used in a stepless manner by using one inexpensive single-phase sliding voltage regulator. It can be precisely adjusted, and the sliding voltage regulator need only be connected and wired to only one of the three phases.

つまり、ハウス用送風機の羽根はその風洞に内蔵された小型誘導モーターの出力軸へ、直かに嵌め付け一体化されており、ベルトやギヤなどの伝動機構を一切具備せず、言わば無負荷状態のもとで軽く回転駆動されるにとどまるため、上記三相のうちの一相だけに接続配線された1個の単相用摺動式電圧調整器でも、その抵抗により電源電圧を確実に微調整することができ、ハウス外の自然な風と同じ有効な微風も得られるのである。   In other words, the blades of the house blower are directly fitted and integrated with the output shaft of a small induction motor built in the wind tunnel, and are not equipped with any transmission mechanisms such as belts and gears, so to say, no load condition Therefore, even with a single single-phase sliding voltage regulator that is connected and wired to only one of the three phases, the power supply voltage is reliably reduced by its resistance. It can be adjusted and the same effective breeze as the natural wind outside the house is also obtained.

又、請求項2の構成を採用するならば、上記送風機回転駆動用誘導モーターを特にトルクモーターとして、その回転トルクを上記摺動式電圧調整器により円滑に強弱制御できるほか、その電源電圧の降下し過ぎに起因して、トルクモーターが焼損するおそれを確実に防止し得る効果もある。その電源電圧の降下限度は実際上、約50Vに位置決め設定することが好ましい。   Further, if the configuration of claim 2 is adopted, the rotational motor can be controlled with the sliding voltage regulator, and the power supply voltage drop can be controlled smoothly by using the induction motor for rotational driving of the blower as a torque motor. There is also an effect that it is possible to surely prevent the torque motor from being burned out due to excessively. In practice, the power supply voltage drop limit is preferably set to about 50V.

更に、請求項3の構成を採用するならば、三相のうちの一相だけに接続配線された1個の単相用摺動式電圧調整器により、並列する複数の送風機回転駆動用誘導モーターを、すべて同じ電源電圧の調整状態として運転することができるほか、その誘導モーターの各個に対応する開閉スイッチの操作により、希望の送風機だけを停止状態に保っておくこともでき、使用上の利便性が向上する。   Furthermore, if the structure of Claim 3 is employ | adopted, the several induction motor for a rotational drive of a fan paralleled by one single-phase sliding type voltage regulator connected and wired only to one phase of three phases Can be operated in the same power supply voltage adjustment state, and only the desired blower can be kept stopped by operating the open / close switch corresponding to each induction motor. Improves.

以下、図面に基いて本考案の具体的構成を説明すると、そのハウス用送風機のシーケンス制御回路を示した図1において、(10)は三相3線200V交流電源回路の出力端子盤であり、ここにはビニールハウス内に必要な複数(図例では合計3基)の送風機回転駆動用誘導モーター(11)が、その全体的な並列状態に接続配線されている。茲に誘導モーター(11)としては、特殊なトルクモーターを採用することが好ましい。   Hereinafter, the specific configuration of the present invention will be described with reference to the drawings. In FIG. 1 showing the sequence control circuit of the house blower, (10) is an output terminal board of a three-phase three-wire 200V AC power supply circuit. Here, a plurality of (three in the illustrated example) fan rotation driving induction motors (11) required in the greenhouse are connected and wired in an overall parallel state. It is preferable to use a special torque motor as the induction motor (11).

(12)は上記電源回路のノーヒューズブレーカー、(13)は同じく接触器接点、(14)は図示の3位置選択可能なスナップ式電源スイッチであり、これをオン操作すれば、電磁接触器(15)が励磁され、その接触器接点(13)が閉じて、上記誘導モーター(11)が悉く起動する。   (12) is a no-fuse breaker of the power supply circuit, (13) is a contactor contact, (14) is a snap-type power switch that can be selected from the three positions shown in the figure. 15) is energized, its contactor contact (13) closes and the induction motor (11) starts to crawl.

又、同じく電源スイッチ(14)をタイマー運転に切り換え操作すれば、その限時動作接点(16)が閉じ、予じめタイマー(17)により設定された一定時間だけ、上記誘導モーター(11)が運転されるようになっている。(18)はその運転中に点灯表示するパイロットランプである。   Similarly, when the power switch (14) is switched to the timer operation, the time limit operation contact (16) is closed, and the induction motor (11) is operated for a predetermined time set by the preliminarily timer (17). It has come to be. (18) is a pilot lamp which is turned on during the operation.

(19)は上記電源回路の接触器接点(13)と出力端子盤(10)との相互間において、その三相のうちの一相だけに接続配線された1個の単相用摺動式電圧調整器(例えば商品名:スライダック)であり、その調整ダイヤル(20)を回動操作することによって、上記誘導モーター(11)へ入力される電圧を無段階での精密に調整することができる。(21)は電圧調整器(19)の端子盤、(22)は同じく電圧調整器(19)の目盛り板、(23)はその調整ダイヤル(20)から一体的に張り出す電圧設定指針である。   (19) is a single-phase sliding type connected and wired to only one of the three phases between the contactor contact (13) and the output terminal board (10) of the power circuit. A voltage regulator (for example, trade name: Slidac), and by rotating the adjustment dial (20), the voltage input to the induction motor (11) can be precisely adjusted steplessly. . (21) is a terminal board of the voltage regulator (19), (22) is a scale plate of the voltage regulator (19), and (23) is a voltage setting indicator protruding integrally from the adjustment dial (20). .

この点、図1の電圧調整器(19)は入力2−4、出力2−3と接続配線されており、その摺動面から見て時計方向へ回動操作した時、電圧が上昇し、反時計方向へ回動操作した時、同じく電圧が降下するようになっている。   In this respect, the voltage regulator (19) of FIG. 1 is connected to the input 2-4 and the output 2-3, and when the clock regulator is rotated clockwise as viewed from the sliding surface, the voltage rises. When the counterclockwise rotation operation is performed, the voltage also drops.

ハウス用送風機を構成する羽根(24)のボスは図2、3に示すように、その回転駆動用誘導モーター(11)の出力軸へ、ギヤやベルトなどの伝動機構を介さず、直かに嵌め付け一体化されており、無負荷状態での軽く回転するに過ぎないため、上記三相交流電源回路の一相だけに単相用電圧調整器(19)の1個を接続配線すれば足り、その抵抗(電圧差)に基いて、上記誘導モーター(11)の回転トルクを確実に低弱化でき、送風機の風量を微調整し得るのである。   As shown in FIGS. 2 and 3, the boss of the blade (24) constituting the house blower is directly connected to the output shaft of the rotation driving induction motor (11) without using a transmission mechanism such as a gear or a belt. Since it is fitted and integrated and only rotates lightly under no load, it is sufficient to connect and wire one single-phase voltage regulator (19) to only one phase of the three-phase AC power supply circuit. Based on the resistance (voltage difference), the rotational torque of the induction motor (11) can be reliably reduced and the air volume of the blower can be finely adjusted.

但し、上記誘導モーター(11)に入力される電圧が降下し過ぎると、残る健全な二相に過電流が流れて、その誘導モーター(11)の焼損事故を招くおそれがあるため、上記電圧調整器(19)により設定される電圧の降下限度を好ましくは約50Vとして、その調整ダイヤル(20)をこれ以下には回動操作できないように、図外の位置決めストッパーを内蔵設置しておく。   However, if the voltage input to the induction motor (11) drops too much, overcurrent flows in the remaining healthy two phases, which may lead to a burnout accident of the induction motor (11). The lower limit of the voltage set by the device (19) is preferably about 50 V, and a positioning stopper (not shown) is installed so that the adjustment dial (20) cannot be rotated below this value.

更に、(25)は上記誘導モーター(11)毎の個別開閉スイッチであり、その誘導モーター(11)と対応する複数(図例では合計3個)が、上記電源回路における電圧調整器(19)と出力端子盤(10)との相互間へ、その全体的な並列状態に接続配線されている。   Further, (25) is an individual open / close switch for each induction motor (11), and a plurality (three in the illustrated example) corresponding to the induction motor (11) is a voltage regulator (19) in the power supply circuit. And the output terminal board (10) are connected and wired in an overall parallel state.

その誘導モーター(11)毎の個別開閉スイッチ(25)を選択操作することにより、栽培する農作物やこれに与える環境条件などとの関係上、その希望する必要な送風機回転駆動用誘導モーター(11)だけを個別運転することもできるようになっているのである。   By selecting and operating the individual open / close switch (25) for each induction motor (11), the desired blower rotation drive induction motor (11) is desired in relation to the crops to be cultivated and the environmental conditions given thereto. It is also possible to individually operate only those.

尚、上記電圧調整器(19)における定格出力電流の設定次第によって、送風機回転駆動用誘導モーター(11)の設置台数を増加することができる。上記電源回路の組み込まれた制御盤(図示省略)は、ビニールハウスの出入口付近に設置され、その制御盤上から集中的に手動操作されることは言うまでもない。   It should be noted that the number of installed blower rotation drive induction motors (11) can be increased depending on the setting of the rated output current in the voltage regulator (19). It goes without saying that the control panel (not shown) in which the power supply circuit is incorporated is installed near the entrance of the greenhouse and is manually operated from the control panel.

本考案の使用に当っては、上記電圧調整器(19)の調整ダイヤル(20)を回動操作することにより、送風機回転駆動用誘導モーター(11)へ入力される電源電圧を希望通りに調整セットしておき、電源スイッチ(14)をオン操作すれば良い。   When using the present invention, the power supply voltage input to the blower rotation drive induction motor (11) is adjusted as desired by rotating the adjustment dial (20) of the voltage regulator (19). The power switch (14) may be turned on after setting.

そうすれば、上記電源回路の電磁接触器(15)が付勢され、その接触器接点(13)が閉じて、誘導モーター(11)が悉く起動するため、その送風機から予じめ調整された風量が発生し、栽培する農作物に常時最適の送風作用を与えることができ、特にハウス外の自然な風と同じ微風も得られる点で、顕著な効果がある。   Then, the electromagnetic contactor (15) of the power supply circuit was energized, the contactor contact (13) was closed, and the induction motor (11) started to crawl, so it was preliminarily adjusted from the blower. The air volume is generated, and it is possible to always give the optimum air blowing action to the crops to be cultivated, and there is a remarkable effect in that the same breeze as the natural wind outside the house can be obtained.

その場合、上記誘導モーター(11)毎の個別開閉スイッチ(15)を選択操作することにより、希望の誘導モーター(11)だけを運転しても、又上記電源スイッチ(14)をタイマー運転に切り換え操作することにより、その誘導モーター(11)を一定時間だけ限時運転しても、上記電圧調整器(19)により予じめ無段階での精密に調整された風量を得ることができ、著しく便利である。   In that case, by selecting and operating the individual open / close switch (15) for each induction motor (11), even if only the desired induction motor (11) is operated, the power switch (14) is switched to the timer operation. By operating, even if the induction motor (11) is operated for a certain period of time, the above-mentioned voltage regulator (19) can obtain a steplessly precisely adjusted air volume, which is extremely convenient. It is.

何れにしても、上記電圧調整器(19)は単相用として安価であり、しかも三相交流電源回路の一相だけに1個接続配線すれば足りるため、この種送風機の風量調整装置として大幅なコストダウンを図ることができ、ノイズを発生しないこととも相俟って、ハウス内での作業者に有効な考案であると言える。   In any case, the voltage regulator (19) is inexpensive for a single phase, and only needs to be connected and connected to one phase of a three-phase AC power supply circuit. It can be said that this is an effective device for the workers in the house, in combination with the fact that the cost can be reduced and noise is not generated.

本考案に係るハウス用送風機のシーケンス制御回路図である。It is a sequence control circuit diagram of the air blower for a house which concerns on this invention. 送風機回転駆動用誘導モーターとその電圧調整器との接続配線状態を示す正面図である。It is a front view which shows the connection wiring state of the induction motor for fan rotation drive, and its voltage regulator. 送風機を抽出して示す半欠截側面図である。It is a half notched side view which extracts and shows a fan.

符号の説明Explanation of symbols

(10)・出力端子盤
(11)・送風機回転駆動用誘導モーター
(12)・ノーヒューズブレーカー
(13)・接触器接点
(14)・電源スイッチ
(15)・電磁接触器
(16)・限時動作接点
(17)・タイマー
(18)・パイロットランプ
(19)・電圧調整器
(20)・調整ダイヤル
(21)・端子盤
(22)・目盛り板
(23)・指針
(24)・羽根
(25)・個別開閉スイッチ
(10) · Output terminal board (11) · Induction motor for fan rotation drive (12) · No-fuse breaker (13) · Contactor contact (14) · Power switch (15) · Electromagnetic contactor (16) · Timed operation Contact (17), Timer (18), Pilot lamp (19), Voltage regulator (20), Adjustment dial (21), Terminal board (22), Scale plate (23), Pointer (24), Blade (25)・ Individual open / close switch

Claims (3)

送風機を回転駆動する三相200Vの誘導モーターに入力される電源電圧を、その三相のうちの一相だけに接続配線した1個の単相用摺動式電圧調整器によって、無段調整できるように定めたことを特徴とするハウス用送風機の風量調整装置。   The power supply voltage input to the three-phase 200V induction motor that rotationally drives the blower can be continuously adjusted by one single-phase sliding voltage regulator connected and wired to only one of the three phases. An air volume adjusting device for a fan for a house, characterized in that it is defined as follows. 送風機回転駆動用誘導モーターをトルクモーターとし、摺動式電圧調整器に電源電圧の降下限度位置決めストッパーを設けたことを特徴とする請求項1記載のハウス用送風機の風量調整装置。   2. The air volume adjustment device for a house blower according to claim 1, wherein the induction motor for rotational drive of the blower is a torque motor, and a sliding voltage regulator is provided with a power supply voltage drop limit positioning stopper. 複数の送風機回転駆動用誘導モーターと摺動式電圧調整器との相互間へ、その誘導モーター毎の個別開閉スイッチを並列状態に接続配線したことを特徴とする請求項1記載のハウス用送風機の風量調整装置。   2. The house blower according to claim 1, wherein individual open / close switches for each induction motor are connected and connected in parallel between the plurality of blower rotation driving induction motors and the sliding voltage regulator. Air volume adjustment device.
JP2005007929U 2005-09-28 2005-09-28 Air volume adjustment device for house blower Expired - Fee Related JP3117110U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013128862A1 (en) * 2012-03-02 2013-09-06 株式会社神戸製鋼所 Rotor for induction torque motor and induction torque motor
CN110764421A (en) * 2018-07-27 2020-02-07 珠海格力电器股份有限公司 Control method, controlled method, equipment, intelligent terminal and intelligent household appliance

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013128862A1 (en) * 2012-03-02 2013-09-06 株式会社神戸製鋼所 Rotor for induction torque motor and induction torque motor
JP2013183538A (en) * 2012-03-02 2013-09-12 Kobe Steel Ltd Rotor for induction torque motor and induction torque motor
CN104137389A (en) * 2012-03-02 2014-11-05 株式会社神户制钢所 Rotor for induction torque motor and induction torque motor
TWI505605B (en) * 2012-03-02 2015-10-21 Kobe Steel Ltd Rotor and induction torque motor to induction torque motor
CN110764421A (en) * 2018-07-27 2020-02-07 珠海格力电器股份有限公司 Control method, controlled method, equipment, intelligent terminal and intelligent household appliance
CN110764421B (en) * 2018-07-27 2022-04-26 珠海格力电器股份有限公司 Control method, controlled method, equipment, intelligent terminal and intelligent household appliance

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