JP3011043B2 - Flow control valve - Google Patents
Flow control valveInfo
- Publication number
- JP3011043B2 JP3011043B2 JP7051264A JP5126495A JP3011043B2 JP 3011043 B2 JP3011043 B2 JP 3011043B2 JP 7051264 A JP7051264 A JP 7051264A JP 5126495 A JP5126495 A JP 5126495A JP 3011043 B2 JP3011043 B2 JP 3011043B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- flow control
- stepping motor
- control valve
- driving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Taps Or Cocks (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Multiple-Way Valves (AREA)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、流量制御たとえば水の
流量調節及び閉止が可能な流量制御弁に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flow control valve capable of controlling a flow rate, for example, adjusting and closing a flow rate of water.
【０００２】[0002]
【従来の技術】従来のこの種の流量制御弁（例えば特開
平２−１４３０３３号公報）を、図９に示す。同図にお
いて、水供給配管１と湯供給配管２の合流部に混合弁３
が設けてあり、混合弁３は混合弁駆動手段４で動作す
る。混合弁３の下流には流量調節弁５が設けられてお
り、流量調節弁５は流量調節弁駆動手段６により駆動さ
れる。７は湯温を検出する温度検出手段、８は湯温を設
定する設定手段である。温度検出手段７によって検出さ
れた湯温と設定手段８で設定された湯温の偏差量により
制御手段９は混合弁３と流量調節弁５を制御し、設定さ
れた湯温と等しい混合湯を吐出口１０より得るものであ
る。１１は流量調節弁５が閉止する位置を検出する第一
の閉止位置検出手段、１２は第二の閉止位置検出手段、
１３は流量調節弁５が閉止した後一定時間経過すると信
号を出力するタイマ手段である。2. Description of the Related Art FIG. 9 shows a conventional flow control valve of this type (for example, Japanese Patent Laid-Open No. 2-143033). In the figure, a mixing valve 3 is provided at a junction of a water supply pipe 1 and a hot water supply pipe 2.
Is provided, and the mixing valve 3 is operated by the mixing valve driving means 4. A flow control valve 5 is provided downstream of the mixing valve 3, and the flow control valve 5 is driven by a flow control valve driving unit 6. 7 is a temperature detecting means for detecting the hot water temperature, and 8 is a setting means for setting the hot water temperature. The control means 9 controls the mixing valve 3 and the flow rate control valve 5 based on the difference between the hot water temperature detected by the temperature detecting means 7 and the hot water temperature set by the setting means 8 so that the mixed hot water equal to the set hot water temperature is obtained. It is obtained from the discharge port 10. 11 is first closing position detecting means for detecting a position where the flow control valve 5 closes, 12 is second closing position detecting means,
Reference numeral 13 denotes timer means for outputting a signal when a predetermined time has elapsed after the flow control valve 5 is closed.
【０００３】出湯を停止する場合、流量調節弁５は第一
の閉止位置検出手段１１まで流量調節弁駆動手段６によ
って駆動される。第一の閉止位置検出手段１１の信号に
より流量調節弁５の閉止を検出すると制御手段９は流量
調節弁５の駆動を停止し、タイマ手段１３を動作し始め
る。タイマ手段１３からの信号が制御手段９に入力する
と、制御手段９は第一の閉止位置検出手段１１で検出さ
れた位置で停止している流量調節弁５をさらに閉止する
方向に駆動する。そして流量調節弁５が第二の閉止位置
検出手段１２の位置までくると、これを検出し流量調節
弁５の動作を停止する。When the tapping is stopped, the flow control valve 5 is driven by the flow control valve driving means 6 to the first closed position detecting means 11. When the closing of the flow control valve 5 is detected by the signal of the first closing position detecting means 11, the control means 9 stops driving the flow control valve 5 and starts the operation of the timer means 13. When a signal from the timer means 13 is input to the control means 9, the control means 9 drives the flow control valve 5 stopped at the position detected by the first closing position detection means 11 in a direction for further closing. When the flow control valve 5 reaches the position of the second closed position detecting means 12, this is detected and the operation of the flow control valve 5 is stopped.
【０００４】同様にこの状態でタイマ手段１３からの信
号が制御手段９に入力すると制御手段９は第二の閉止位
置検出手段１２で検出された位置で停止している流量調
節弁５を開く方向に駆動する。そして流量調節弁５が第
一の閉止位置検出手段１１の位置までくると、これを検
出し流量調節弁５の動作を停止する。Similarly, when a signal from the timer means 13 is input to the control means 9 in this state, the control means 9 opens the flow control valve 5 stopped at the position detected by the second closed position detection means 12. Drive. When the flow control valve 5 reaches the position of the first closing position detecting means 11, this is detected and the operation of the flow control valve 5 is stopped.
【０００５】このように、流量調節弁５は閉止した後も
一定時間ごとに動くことで流量調節弁５の固着を防止す
るものであった。As described above, the flow control valve 5 moves at regular intervals even after the valve is closed, thereby preventing the flow control valve 5 from sticking.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら上記した
ような従来の流量制御弁では、第一の閉止位置検出手段
と第二の閉止位置検出手段が必要であるので、大きくな
ってしまうとともにコストがかかりすぎるという課題が
あった。However, in the conventional flow control valve as described above, since the first closing position detecting means and the second closing position detecting means are required, the size and the cost are increased. There was a problem of too much.
【０００７】また、弁の閉止位置の駆動範囲が狭いた
め、閉止位置検出手段の取り付け位置および間隔を高精
度に行う必要があり、２つの閉止位置検出手段の取り付
け作業が難しくなるという課題があった。Further, since the driving range of the closing position of the valve is narrow, it is necessary to perform the mounting position and the interval of the closing position detecting means with high precision, and there is a problem that the mounting work of the two closing position detecting means becomes difficult. Was.
【０００８】さらに、駆動トルクが一定であるので固着
力が大きくなると、弁を駆動できなくなるという可能性
があった。Further, since the driving torque is constant, there is a possibility that the valve cannot be driven if the fixing force increases.
【０００９】本発明は上記課題を解決するものであり、
簡単な構成かつ低コストで弁の閉止時に起こる固着を防
止できる流量制御弁を提供することを第一の目的として
いる。The present invention has been made to solve the above problems, and
It is a first object of the present invention to provide a flow control valve which has a simple configuration and can prevent sticking that occurs when the valve is closed at a low cost.
【００１０】第二の目的は、弁の固着した場合において
も、簡単な構成かつ低コストで弁体を確実に駆動できる
流量制御弁を提供することにある。A second object of the present invention is to provide a flow control valve capable of reliably driving a valve element with a simple configuration and at low cost even when the valve is fixed.
【００１１】第三の目的は、弁の閉止位置付近で弁体の
回転トルクが増大しても、簡単な構成かつ低コストで確
実に弁体を駆動できるとともに、流量変更等の応答性の
よい流量制御弁を提供することにある。A third object is that, even if the rotational torque of the valve element increases near the valve closing position, the valve element can be driven reliably with a simple configuration and at low cost, and has good responsiveness such as a change in flow rate. It is to provide a flow control valve.
【００１２】第四の目的は、弁の閉止位置付近で弁体の
回転トルクが増大しても、簡単な構成かつ低コストで確
実に弁体を駆動できるとともに、さらにステッピングモ
ータの小型化を図ることができる流量制御弁を提供する
ことにある。A fourth object is that even if the rotational torque of the valve element increases near the valve closing position, the valve element can be reliably driven at a low cost with a simple configuration, and the size of the stepping motor is further reduced. It is to provide a flow control valve which can be used.
【００１３】第五の目的は、弁の閉止位置付近で弁体の
回転トルクが増大しても、簡単な構成かつ低コストで確
実に弁体を駆動できるとともに、さらに応答性の向上を
図ることができる流量制御弁を提供することにある。A fifth object of the present invention is to make it possible to reliably drive the valve element with a simple structure and at low cost even if the rotational torque of the valve element increases near the valve closing position, and to further improve the responsiveness. It is an object of the present invention to provide a flow control valve capable of reducing the pressure.
【００１４】第六の目的は、弁の閉止位置付近で弁体の
回転トルクが増大しても、簡単な構成かつ低コストで確
実に弁体を駆動できるとともに、さらに制御の簡素化を
図ることができる流量制御弁を提供することにある。A sixth object of the present invention is to make it possible to reliably drive the valve element with a simple configuration and at low cost even if the rotational torque of the valve element increases near the closed position of the valve, and to further simplify the control. It is an object of the present invention to provide a flow control valve capable of reducing the pressure.
【００１５】[0015]
【課題を解決するための手段】上記目的を達成するため
に本発明の流量制御弁は、流入路と流出路を有するハウ
ジングと、流入孔と流出孔を有する弁体と、前記弁体を
駆動し、弁の開閉を行うステッピングモータと、弁の閉
止位置領域を判定する位置判別手段と、前記弁が閉止し
た後一定時間ごとに信号を出力するタイマ手段と、前記
タイマ手段の信号を入力し前記ステッピングモータを所
定の回転範囲内で通常駆動時よりも高トルクで駆動する
制御手段から構成したものである。In order to achieve the above object, a flow control valve according to the present invention comprises: a housing having an inflow passage and an outflow passage; a valve having an inflow hole and an outflow hole; And a stepping motor for opening and closing the valve, position determining means for determining a closed position area of the valve, timer means for outputting a signal at predetermined time intervals after the valve is closed, and inputting a signal from the timer means. The stepping motor is constituted by a control means for driving the stepping motor with a higher torque within a predetermined rotation range than at the time of normal driving .
【００１６】また本発明の流量制御弁は、流入路と流出
路を有するハウジングと、流入孔と流出孔を有する弁体
と、前記弁体を駆動し、弁の開閉を行うステッピングモ
ータと、前記弁の閉止位置領域を判定する位置判別手段
と、前記弁が閉止した後一定時間ごとに信号を出力する
タイマ手段と、前記タイマ手段の信号を入力した後に前
記弁が開成されたとき弁閉止位置から所定の回転範囲内
で前記ステッピングモータを通常駆動時よりも高トルク
で駆動する制御手段から構成したものである。A flow control valve according to the present invention comprises: a housing having an inflow passage and an outflow passage; a valve body having an inflow hole and an outflow hole; a stepping motor for driving the valve body to open and close the valve; and position determining means for determining the closed position region of the valve, and timer means for outputting a signal for each predetermined time after the valve is closed, before after entering the signal of the timer means
When the valve is opened, within a predetermined rotation range from the valve closed position
The stepping motor has a higher torque than during normal driving
It is constituted by control means driven by .
【００１７】[0017]
【００１８】更に本発明の流量制御弁は、高トルク駆動
時にステッピングモータへの出力パルス周波数を通常時
よりも小さくする駆動速度切換手段を有する制御手段を
設けたものである。 Further, the flow control valve of the present invention is provided with a control means having a drive speed switching means for reducing the output pulse frequency to the stepping motor at the time of high torque driving as compared with the normal time.
【００１９】また本発明の流量制御弁は、高トルク駆動
時にステッピングモータの駆動励磁方式を変更する駆動
励磁切換手段を有する制御手段を設けたものである。 Further flow control valve of the present invention, is provided with a control means having a driving excitation switching means for changing the driving excitation system of the stepping motor at a high torque drive.
【００２０】また本発明の流量制御弁は、高トルク駆動
時にステッピングモータへの出力電圧を高くする駆動電
圧切換手段を有する制御手段を設けたものである。 Further flow control valve of the present invention, is provided with a control means having a driving voltage switching means to increase the output voltage to the stepping motor at a high torque drive.
【００２１】[0021]
【作用】本発明の流量制御弁は上記した構成により、弁
体が閉止された後、弁の閉止位置から弁体を所定の範囲
で定期的に駆動するので、弁がシール部材に固着した
り、長時間の放置によるスケールの付着により弁が固着
することを防止できる。According to the flow control valve of the present invention, the valve is periodically driven from the closed position of the valve within a predetermined range after the valve is closed, so that the valve may adhere to the seal member. Also, it is possible to prevent the valve from sticking due to the adhesion of the scale due to standing for a long time.
【００２２】また本発明の流量制御弁は上記した構成に
より、弁体が閉止された後、弁の閉止位置から弁体を所
定の範囲で定期的に通常時よりも高トルクで駆動するの
で、タイマ手段で設定した一定時間よりも短時間で弁が
固着しても固着を解除できるとともに、確実に固着を防
止できる。Further, since the flow control valve of the present invention has the above-described structure, after the valve element is closed, the valve element is periodically driven with a higher torque than usual in a predetermined range from the closed position of the valve. Even if the valve sticks in a shorter time than the fixed time set by the timer means, the sticking can be released and the sticking can be reliably prevented.
【００２３】さらに本発明の流量制御弁は上記した構成
により、弁体の駆動トルクが増大する弁閉止位置から所
定の範囲内において、弁体が閉止された後、一定時間後
に弁が開成される場合にステッピングモータを高トルク
で駆動するので、ステッピングモータが脱調することな
く弁体を確実に駆動することができる。Further, according to the flow control valve of the present invention, after the valve body is closed within a predetermined range from the valve closing position where the drive torque of the valve body increases, the flow rate control valve has a predetermined time after the valve body is closed.
When the valve is opened , the stepping motor is driven with a high torque, so that the valve element can be reliably driven without stepping out of the stepping motor.
【００２４】加えて本発明の流量制御弁は上記した構成
により、所定の条件時ステッピングモータ駆動周波数を
低減し、高トルクで駆動するので、弁体の固着を確実に
防止し、弁体を確実に駆動することができる。In addition, the flow rate control valve of the present invention, with the above-described structure, reduces the stepping motor driving frequency under a predetermined condition and is driven with a high torque, so that the sticking of the valve body is reliably prevented, and the valve body is securely held. Can be driven.
【００２５】また本発明の流量制御弁は上記した構成に
より、所定の条件時ステッピングモータの駆動励磁を変
更し、高トルクで駆動するので、弁体の固着を確実に防
止し、弁体を確実に駆動することができる。In the flow control valve of the present invention, the drive excitation of the stepping motor is changed under a predetermined condition and driven at a high torque under the above-described configuration. Can be driven.
【００２６】加えて本発明の流量制御弁は上記した構成
により、所定の条件時ステッピングモータの駆動電圧を
上げ、高トルクで駆動するので、弁体の固着を確実に防
止し、弁体を確実に駆動することができる。In addition, the flow rate control valve of the present invention has the above-described structure, so that the driving voltage of the stepping motor is increased under a predetermined condition and the stepping motor is driven with a high torque. Can be driven.
【００２７】[0027]
【実施例】以下本発明の実施例を図面にもとづいて説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.
【００２８】図１は本発明の第一の実施例を示す流量制
御弁１４の構成図であり、図２は図１のＡ−Ａ断面図で
あり、図３は弁体１２および弁軸１３の斜視図であり、
図４（ａ）〜（ｃ）は図１のＢ−Ｂ断面図である。同図
において１５はハウジングであり、水，湯などの流体の
流入路１６と流出路１７を有している。１８はハウジン
グ１４内に回動可能に設けらた略球形の弁体であり、そ
の弁体１８は側面に液体の流入孔１８および端面に流出
孔２０を有している。また、弁体１２の流出孔２０とは
反対側の端部に、図３のように弁軸２１の先端凸部２２
が挿入される凹溝２３が形成してある。FIG. 1 is a structural view of a flow control valve 14 showing a first embodiment of the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. FIG.
4A to 4C are cross-sectional views taken along line BB of FIG. In FIG. 1, reference numeral 15 denotes a housing, which has an inflow path 16 and an outflow path 17 for a fluid such as water or hot water. Reference numeral 18 denotes a substantially spherical valve body rotatably provided in the housing 14. The valve body 18 has a liquid inflow hole 18 on a side surface and an outflow hole 20 on an end surface. Further, as shown in FIG. 3, a distal end protruding portion 22 of a valve shaft 21 is provided at an end of the valve body 12 opposite to the outflow hole 20.
Is formed therein.
【００２９】また弁軸２１の軸シール部２４はリング状
の溝２５が形成されており、その溝２５にＸ字形断面の
弾性シール部材２６が設けられている。さらに弁軸１８
の凸部２２とは反対側の端部に、弁体１８を駆動するス
テッピングモータ２７の駆動軸２８を挿入する軸穴２９
が形成されている。軸穴２９の形状は図３のように円形
の円弧部分２カ所を対称的に削り取った形をしており、
弁体１８はステッピングモータ２７の駆動軸２８の回転
にともなって回転される。弁体の閉止位置を判別する弁
位置判別手段は、弁軸２１の軸穴２９の外側に弁体１８
の回転範囲角度を規制する回転角規制部材３０と、ハウ
ジング１５に設けられた回転角規制部３１とから成って
いる。A ring-shaped groove 25 is formed in the shaft seal portion 24 of the valve shaft 21, and an elastic seal member 26 having an X-shaped cross section is provided in the groove 25. Further, the valve shaft 18
A shaft hole 29 for inserting a drive shaft 28 of a stepping motor 27 for driving the valve element 18 is provided at an end opposite to the convex portion 22 of the shaft.
Are formed. As shown in FIG. 3, the shape of the shaft hole 29 is formed by symmetrically shaving two circular arc portions.
The valve element 18 is rotated with the rotation of the drive shaft 28 of the stepping motor 27. The valve position determining means for determining the closing position of the valve body is provided outside the shaft hole 29 of the valve shaft 21 by the valve body 18.
And a rotation angle restricting portion 31 provided in the housing 15.
【００３０】ハウジング１５の流入路１６と弁体１８と
の間には、リング状のシール部材３２が、また、流入路
１６のない側には摺動抵抗の小さい指示部材３３が装着
してあり、液体のシールを行うとともに、弁体１８の位
置決めを行っている。A ring-shaped seal member 32 is mounted between the inflow passage 16 and the valve element 18 of the housing 15, and an indication member 33 having a small sliding resistance is mounted on the side where the inflow passage 16 is not provided. , And the positioning of the valve element 18 is performed.
【００３１】３４は、流量設定手段３５からの流量制御
の入力信号に応じてステッピングモータ２７を駆動し、
流量制御弁１４の開度調節を行う制御手段であり、内部
にステッピングモータ２７への出力パルスの周波数を変
更し、ステッピングモータ２７の駆動速度を変更する駆
動速度切換手段３６を有している。３７は流量制御弁１
４が閉止された後一定時間毎に信号を出力するタイマ手
段である。A step 34 drives the stepping motor 27 in accordance with an input signal for flow control from the flow setting means 35,
This is control means for adjusting the opening of the flow control valve 14, and internally has a drive speed switching means 36 for changing the frequency of the output pulse to the stepping motor 27 and changing the driving speed of the stepping motor 27. 37 is a flow control valve 1
4 is a timer means for outputting a signal at regular intervals after being closed.
【００３２】以上の構成において本実施例の動作につい
て説明する。図４（ａ）は流量制御弁１４が閉止した状
態を示したものであり、流入路１６と流出路１７とは連
通せず、ハウジング１５と弁体１８との間のシール部材
３１によって液体の漏れが防止されている。図４（ｂ）
は流量制御弁１４が弁開成方向に１０°回転した状態を
示したものであるが、流量制御弁１４はまだ開成されて
おらず閉止された状態にある。図４（ｃ）は流量制御弁
１４が全開した状態を示したものであり、流入路１６と
流出路１７とは連通している。The operation of the present embodiment in the above configuration will be described. FIG. 4A shows a state in which the flow control valve 14 is closed. The inflow passage 16 and the outflow passage 17 do not communicate with each other, and the seal member 31 between the housing 15 and the valve body 18 allows the liquid to flow. Leaks are prevented. FIG. 4 (b)
Fig. 3 shows a state in which the flow control valve 14 is rotated by 10 degrees in the valve opening direction, but the flow control valve 14 is not yet opened and is closed. FIG. 4C shows a state in which the flow control valve 14 is fully opened, and the inflow path 16 and the outflow path 17 are in communication.
【００３３】流量設定手段３５より流量制御弁１４の閉
止信号が出力されると、制御手段３４はステッピングモ
ータ２７を通常の速度で閉止方向に回転する。このとき
のステッピングモータ２７の回転駆動量は流量制御弁１
４の弁開度によって異なるが、回転角規制部材３０がハ
ウジング１５の回転角規制部３１に当接するまでのパル
ス数が出力されるようになっている。ステッピングモー
タ２７が停止すると、制御手段３４はタイマ手段３７に
信号を出力する。信号を入力したタイマ手段３７はカウ
ントを開始し、予め弁体１８とシール部材３２、あるい
はハウジング１５と弾性シール部材２６が固着しないよ
う決められたの一定時間毎に、制御手段３４に信号を出
力する。When a signal for closing the flow control valve 14 is output from the flow setting means 35, the control means 34 rotates the stepping motor 27 in the closing direction at a normal speed. At this time, the rotation driving amount of the stepping motor 27 is determined by the flow control valve 1.
The number of pulses until the rotation angle regulating member 30 comes into contact with the rotation angle regulating portion 31 of the housing 15 is output, though it varies depending on the valve opening degree of No. 4. When the stepping motor 27 stops, the control means 34 outputs a signal to the timer means 37. The timer means 37, which has received the signal, starts counting and outputs a signal to the control means 34 at predetermined time intervals determined so that the valve element 18 and the sealing member 32 or the housing 15 and the elastic sealing member 26 are not fixed. I do.
【００３４】制御手段３４はタイマ手段３７からの信号
を入力すると、駆動速度切換手段３６によって通常のス
テッピングモータ２７への出力パルスよりも周波数を小
さくし、ステッピングモータ２７へ出力する。出力パル
スの周波数を通常時より小さくすることによって、ステ
ッピングモータ２７の回転トルクは増大される。When the control means 34 receives the signal from the timer means 37, the drive speed switching means 36 makes the frequency lower than that of the normal output pulse to the stepping motor 27 and outputs it to the stepping motor 27. By making the frequency of the output pulse smaller than usual, the rotational torque of the stepping motor 27 is increased.
【００３５】このときのステッピングモータ２７の回転
駆動は、弁体１８が図４（ａ）と図４（ｂ）の間で行わ
れるようになっている。すなわち、回転角規制部材３０
が回転角規制部３１に当接する位置（図４（ａ））から
所定の出力パルス数ほど流量制御弁１４の開成方向へ回
転した後（図４（ｂ））、逆転し元の位置（図４
（ａ））へ戻るようになっている。ステッピングモータ
２７で所定のパルス数弁体１８を駆動することにより、
弁体１８の回転駆動を正確に行うとともに、弁体１８の
回転駆動位置が正確に把握できるので、弁が開成し、液
体が漏れることはない。At this time, the rotation of the stepping motor 27 is performed between the valve body 18 and FIGS. 4A and 4B. That is, the rotation angle regulating member 30
Is rotated in the opening direction of the flow control valve 14 by a predetermined number of output pulses from the position (FIG. 4 (a)) in contact with the rotation angle regulating portion 31 (FIG. 4 (b)), and then the reverse rotation original position (FIG. 4 (b)). 4
Returning to (a)). By driving the valve element 18 with a predetermined number of pulses by the stepping motor 27,
Since the rotational drive of the valve element 18 is accurately performed and the rotational drive position of the valve element 18 can be accurately grasped, the valve is opened and the liquid does not leak.
【００３６】なお、弁体１８の回転駆動位置が正確に把
握できるので、タイマ手段３７からの入力信号の度に、
回転角規制部材３０が回転角規制部３１に当接する位置
（図４（ａ））と、所定の出力パルス数ほど流量制御弁
１４の開成方向へ回転した位置（図４（ｂ））、また
は、所定の出力パルス数ほど流量制御弁１４の開成方向
へ回転した位置（図４（ｂ））から回転角規制部材３０
が回転角規制部３１に当接する位置（図４（ａ））に駆
動するだけでも、流量制御への影響はない。Since the rotational drive position of the valve element 18 can be accurately grasped, every time an input signal from the timer means 37 is input,
The position at which the rotation angle regulating member 30 contacts the rotation angle regulating portion 31 (FIG. 4A), the position at which the flow control valve 14 is rotated by a predetermined number of output pulses in the opening direction (FIG. 4B), or The rotation angle regulating member 30 is moved from a position (FIG. 4B) in which the flow control valve 14 is rotated in the opening direction by a predetermined number of output pulses.
4A does not affect the flow rate control.
【００３７】以上述べたように本実施例によれば、流量
制御弁１４が閉止された後、タイマ手段３７から制御手
段３４へ一定時間毎に信号を出力するとともに、信号が
入力されると駆動速度変更手段３６によってステッピン
グモータ２７の駆動トルクを増大し、所定の範囲内で駆
動するので、弁体１８とシール部材３２、あるいはハウ
ジング１５と弾性シール部材２６の固着を確実に防止で
きる。また、タイマ手段によって設定された時間よりも
短時間に予想外の固着等が起こり、弁体の回転トルクが
増加しても、ステッピングモータ２７の駆動トルクを増
大しているので、固着を解除できる。さらに、ステッピ
ングモータ２７によって弁体１８を駆動し、回転角規制
部材３０が回転角規制部３１に当接する位置だけで正確
に所定の範囲内で駆動できるので、位置判別手段が１カ
所のみでよく組立行程が簡素化されるとともに組立精度
を要する部品が低減され、低コスト化が実現できる。As described above, according to the present embodiment, after the flow control valve 14 is closed, a signal is output from the timer means 37 to the control means 34 at regular time intervals, and when a signal is input, the drive is started. Since the driving torque of the stepping motor 27 is increased by the speed changing means 36 and driven within a predetermined range, the sticking of the valve body 18 and the seal member 32 or the housing 15 and the elastic seal member 26 can be reliably prevented. Further, even if unexpected fixation or the like occurs in a shorter time than the time set by the timer means and the rotational torque of the valve body increases, the fixation can be released because the drive torque of the stepping motor 27 is increased. . Further, the valve element 18 is driven by the stepping motor 27, and the rotation angle regulating member 30 can be accurately driven within a predetermined range only at a position where the rotation angle regulating member 30 comes into contact with the rotation angle regulating section 31, so that only one position discriminating means is required. The assembly process is simplified, the number of components requiring assembly accuracy is reduced, and cost reduction can be realized.
【００３８】図５は本発明の第二の実施例を示す流量制
御弁３８の構成図であり、図６（ａ）〜（ｄ）は図５の
Ａ−Ａ断面図であり、図７（ａ）〜（ｄ）は図５のＢ−
Ｂ断面図であり、図１の流量制御弁１４の構成と異なる
点のみ説明する。ハウジング３９は、流入路４０と、第
一の流出路４１と、第二の流出路４２を有しており、第
一の流出路４１と第二の流出路４２は、同一軸上に設け
てある。弁体４３は端面に流入孔４４を側面に流出孔４
５を有している。弁体４３の閉止位置を判別する弁位置
判別手段は、弁軸２１の軸穴２９の外側に弁体４３の回
転範囲角度を規制する回転角規制部材３０に設けられた
磁石４６と、ホール素子４７とから成り、ホール素子４
７は弁体４３が閉止位置にくると（すなわち回転角規制
部材３０に設けられた磁石４６がホール素子上にく
る）、制御手段４８に信号を出力する。ハウジング３９
には弁体の回転を規制する回転角規制部４９が設けられ
ている。FIG. 5 is a block diagram of a flow control valve 38 according to a second embodiment of the present invention. FIGS. 6 (a) to 6 (d) are sectional views taken along the line AA of FIG. a) to (d) show B- in FIG.
FIG. 2 is a cross-sectional view taken along a line B, and only different points from the configuration of the flow control valve 14 in FIG. The housing 39 has an inflow path 40, a first outflow path 41, and a second outflow path 42. The first outflow path 41 and the second outflow path 42 are provided on the same axis. is there. The valve body 43 has an inflow hole 44 on the end face and an outflow hole 4 on the side face.
Five. The valve position determining means for determining the closed position of the valve body 43 includes a magnet 46 provided on the rotation angle regulating member 30 for regulating the rotation range angle of the valve body 43 outside the shaft hole 29 of the valve shaft 21, and a Hall element. 47 and the Hall element 4
7 outputs a signal to the control means 48 when the valve body 43 comes to the closed position (that is, the magnet 46 provided on the rotation angle regulating member 30 comes above the Hall element). Housing 39
Is provided with a rotation angle regulating portion 49 for regulating the rotation of the valve element.
【００３９】ハウジング３９の第一の流出路４１および
第二の流出路４２と弁体１８との間には、リング状のシ
ール部材３２が装着してあり、液体のシールを行う（漏
れを防止する）とともに、弁体３９の位置決めを行って
いる。A ring-shaped seal member 32 is mounted between the valve body 18 and the first outflow passage 41 and the second outflow passage 42 of the housing 39 to seal the liquid (prevent leakage). And the positioning of the valve body 39 is performed.
【００４０】制御手段４８は、内部にステッピングモー
タ２７の励磁方式を変更し、ステッピングモータ２７の
トルク増大を行う駆動励磁切換手段５０を有している。The control means 48 has a drive excitation switching means 50 for changing the excitation method of the stepping motor 27 and increasing the torque of the stepping motor 27.
【００４１】以上の構成において本実施例の動作につい
て第一の実施例との相違点の説明する。図７（ａ）は流
量制御弁３８が弁閉止位置にある状態を示したものであ
り、図７（ｂ）は流量制御弁３８が第一の流出路４１の
弁開成方向に１０°回転した状態を示したものである
が、流量制御弁３８はまだ開成されておらず閉止された
状態にある。図７（ｃ）は流量制御弁３８が第一の流出
路４１の弁開成方向に２０°回転した状態を示したもの
であり、流量制御弁３８は開成されている。図７（ｄ）
は流量制御弁３８が弁閉止位置から９０°第一の流出路
４１側に開成した状態を示したものであり、流量制御弁
３８が全開となっている。図７（ａ）〜（ｄ）は、図６
の（ａ）〜（ｄ）にそれぞれ対応したＢ−Ｂ断面図であ
り、第二の流出口４２側の開成方向は省略している。With respect to the operation of the present embodiment in the above configuration, differences from the first embodiment will be described. FIG. 7A shows a state in which the flow control valve 38 is in the valve closing position, and FIG. 7B shows a state in which the flow control valve 38 is rotated by 10 ° in the valve opening direction of the first outflow passage 41. Although the state is shown, the flow control valve 38 is not yet opened and is closed. FIG. 7C shows a state in which the flow control valve 38 is rotated by 20 ° in the valve opening direction of the first outflow passage 41, and the flow control valve 38 is open. FIG. 7D
The figure shows a state in which the flow control valve 38 is opened 90 ° from the valve closed position to the first outflow passage 41 side, and the flow control valve 38 is fully opened. FIGS. 7 (a) to 7 (d) show FIG.
6A to 6D are BB cross-sectional views respectively corresponding to (a) to (d), and the direction in which the second outlet 42 is opened is omitted.
【００４２】流量設定手段３５より流量制御弁３８の駆
動信号が出力されると、制御手段４８はステッピングモ
ータ２７を回転駆動する。制御手段４８は流量制御弁３
８が閉止状態にあるとき弁体の位置を初期化しておき、
以後流量設定手段３５からの信号によって弁体４３が回
転駆動されると、ステッピングモータ２７の回転駆動量
から弁体４３の回転角度を記憶しておく。弁体４３の回
転トルクは、図８に示すように流出孔４５がシール部材
３２にかかっているＹの領域では小さいが、ＺおよびＸ
の回転領域では大きくなっているので、制御手段４８に
よって記憶した弁体４３の回転角度がＸおよびＺ領域と
なった場合には、励磁切換手段５０によりステッピング
モータ２７の駆動励磁方式を変更し、ステッピングモー
タ２７の出力トルクを増大する。なお、弁体４３の回転
角度が弁体閉止位置から大きくなったＺの領域におい
て、ステッピングモータ２７の出力トルクを増大せず、
シール部材３２につけられたグリスが脱脂し、弁体４３
が回転駆動が不能となった場合でも、Ｚ領域では流量変
動は小さいので、流量制御への影響を最小限とすること
が可能である。When a drive signal for the flow control valve 38 is output from the flow setting means 35, the control means 48 drives the stepping motor 27 to rotate. The control means 48 includes the flow control valve 3
When the valve 8 is in the closed state, the position of the valve element is initialized,
Thereafter, when the valve 43 is rotationally driven by a signal from the flow rate setting means 35, the rotation angle of the valve 43 is stored from the amount of rotation of the stepping motor 27. As shown in FIG. 8, the rotational torque of the valve element 43 is small in the Y region where the outflow hole 45 is applied to the seal member 32, but is small in the Z and X directions.
When the rotation angle of the valve body 43 stored by the control means 48 falls in the X and Z areas, the drive excitation method of the stepping motor 27 is changed by the excitation switching means 50. The output torque of the stepping motor 27 is increased. In addition, in the region of Z where the rotation angle of the valve element 43 has increased from the valve element closing position, the output torque of the stepping motor 27 is not increased,
The grease attached to the seal member 32 is degreased, and the valve body 43
However, even if the rotation becomes impossible, the fluctuation in the flow rate is small in the Z region, so that the influence on the flow rate control can be minimized.
【００４３】以上のように本実施例によれば、回転角規
制部材３０に設けられた磁石４６と、ホール素子４７と
から成る弁位置判別手段と、ステッピングモータ２７を
駆動するとともに弁位置判別手段からの信号とステッピ
ングモータ２７の回転駆動量とから弁体４３の回転角度
を記憶，確認する制御手段４８と、弁体４３の回転角度
が所定の範囲内にあるときステッピングモータ２７の駆
動励磁方式を切り換え、ステッピングモータ２７の出力
トルクを増大する駆動励磁切換手段５０を設けたことに
より、流量制御弁３８の閉止位置付近で弁体４３の回転
トルクが増大しても、確実に弁体を駆動できるという効
果がある。また、励磁方式を切り換えることによってス
テッピングモータ２７の出力トルクを増大しているの
で、流量変更等の応答性のよい流量制御弁を提供するこ
とができる。さらに長期間使用しないときに起こる弁体
４３の固着や、シール部材３２につけられたグリスの脱
脂により、弁体４３の回転トルク増大しても、確実に弁
体を駆動できる。加えて、ステッピングモータ２７の回
転駆動量から弁体４３の駆動位置を記憶，確認するの
で、簡単な構成かつ低コストで流量制御弁３８を提供す
ることができる。また、ステッピングモータ２７の励磁
方式を切り換えることによって出力トルクの増大を行う
と、その間でのみステッピングモータ２７の入力パルス
による駆動角度が大きくなるので、流量制御弁３８の応
答性を向上できる。As described above, according to the present embodiment, the valve position discriminating means including the magnet 46 provided on the rotation angle regulating member 30 and the Hall element 47, and the valve position discriminating means for driving the stepping motor 27. Control means 48 for storing and confirming the rotation angle of the valve element 43 from the signal from the controller and the rotation drive amount of the stepping motor 27, and a drive excitation method for the stepping motor 27 when the rotation angle of the valve element 43 is within a predetermined range. And the drive excitation switching means 50 for increasing the output torque of the stepping motor 27 is provided, so that even if the rotational torque of the valve element 43 increases near the closed position of the flow control valve 38, the valve element can be reliably driven. There is an effect that can be. Further, since the output torque of the stepping motor 27 is increased by switching the excitation method, it is possible to provide a flow control valve having a good response such as a change in the flow rate. Further, even if the rotational torque of the valve body 43 is increased due to the sticking of the valve body 43 and the degreasing of the grease attached to the seal member 32 that occur when the valve body 43 is not used for a long time, the valve body can be driven reliably. In addition, since the drive position of the valve element 43 is stored and confirmed from the rotational drive amount of the stepping motor 27, the flow control valve 38 can be provided with a simple configuration and at low cost. In addition, when the output torque is increased by switching the excitation method of the stepping motor 27, the drive angle of the stepping motor 27 by the input pulse is increased only during that time, so that the responsiveness of the flow control valve 38 can be improved.
【００４４】なお、本実施例では励磁方式の切り換えに
よりステッピングモータ２７の出力トルクを増大してい
るが、駆動励磁切換手段５０の代わりにステッピングモ
ータ２７の駆動電圧を上げる駆動電圧切換手段を設ける
ことによって出力トルクを増大させると、弁体４３の回
転速度及び分解能を変更しないので、制御手段４８の制
御アルゴリズムの簡素化を図ることができる。In this embodiment, the output torque of the stepping motor 27 is increased by switching the excitation method. However, a drive voltage switching means for increasing the drive voltage of the stepping motor 27 is provided instead of the drive excitation switching means 50. If the output torque is increased by this, the rotation speed and resolution of the valve element 43 are not changed, so that the control algorithm of the control means 48 can be simplified.
【００４５】[0045]
【発明の効果】以上詳述したように本発明の流量制御弁
は、流入路と流出路を有するハウジングと、流入孔と流
出孔を有する弁体と、弁体を駆動し、弁の開閉を行うス
テッピングモータと、弁の閉止位置領域を判定する位置
判別手段と、弁が閉止した後一定時間ごとに信号を出力
するタイマ手段と、タイマ手段の信号を入力しステッピ
ングモータを所定の回転範囲内で通常駆動時よりも高ト
ルクで駆動する制御手段を有し、弁体が閉止された後、
弁の閉止位置から弁体を所定の範囲で定期的に通常時よ
りも高トルクで駆動するので、タイマ手段で設定した一
定時間よりも短時間で弁が固着しても固着を解除できる
とともに、確実に固着を防止できる。 As described above in detail, the flow control valve of the present invention has a housing having an inflow passage and an outflow passage, a valve body having an inflow hole and an outflow hole, and a valve body driven to open and close the valve. Stepping motor to be performed, position determining means for determining a closed position area of the valve, timer means for outputting a signal at regular intervals after the valve is closed, and inputting a signal from the timer means to set the stepping motor within a predetermined rotation range. Higher than normal driving
Having control means driven by lux , after the valve body is closed,
During regular normal range of the valve body having a predetermined from the closed position of the valve
Since driving at Rimotaka torque one set by the timer means
Even if the valve sticks in a shorter time than the fixed time, the sticking can be released
At the same time, sticking can be reliably prevented.
【００４６】[0046]
【００４７】さらに本発明の流量制御弁は、流入路と流
出路を有するハウジングと、流入孔と流出孔を有する弁
体と、弁体を駆動し、弁の開閉を行うステッピングモー
タと、弁の閉止位置に設けられ前記弁体の位置決めを行
う位置検出手段と、弁が閉止した後一定時間ごとに信号
を出力するタイマ手段と、タイマ手段の信号を入力した
後に弁が開成されたとき弁閉止位置から所定の回転範囲
内でステッピングモータを通常駆動時よりも高トルクで
駆動する制御手段を有し、弁体の駆動トルクが増大する
弁閉止位置から所定の範囲内において、ステッピングモ
ータを高トルクで駆動するので、長期間使用せず、弁体
の固着や脱脂により弁閉止位置から所定の範囲内におい
て弁体の回転トルクが増大しても、弁体を確実に駆動で
き、しかも、ステッピングモータの回転駆動量により弁
体の駆動位置が確認できるので、簡単な構成かつ低コス
トになるという効果がある。また本発明の流量制御弁
は、流入路と流出路を有するハウジングと、流入孔と流
出孔を有する弁体と、弁体を駆動し、弁の開閉を行うス
テッピングモータと、弁の閉止位置領域を判定する位置
判別手段と、弁が閉止した後一定時間ごとに信号を出力
するタイマ手段と、タイマ手段の信号を入力しステッピ
ングモータを所定の回転範囲内で通常駆動時よりも高ト
ルクで駆動する制御手段を有し、弁体が閉止された後、
弁の閉止位置から弁体を所定の範囲で定期的に通常時よ
りも高トルクで駆動するので、タイマ手段で設定した一
定時間よりも短時間で弁が固着しても固着を解除できる
とともに、確実に固着を防止できる。The flow control valve of the present invention further comprises a housing having an inflow passage and an outflow passage, a valve body having an inflow hole and an outflow hole, a stepping motor for driving the valve body to open and close the valve, Position detecting means provided at a closed position for positioning the valve body, and a signal every predetermined time after the valve is closed
And a timer means for outputting a signal
When the valve is later opened , the control means drives the stepping motor with a higher torque than during normal driving within a predetermined rotation range from the valve closed position, and a predetermined amount from the valve closed position where the driving torque of the valve body increases. Since the stepping motor is driven with a high torque within the range, the valve body is not used for a long time, and even if the rotational torque of the valve body increases within a predetermined range from the valve closing position due to sticking or degreasing of the valve body, the valve body is not moved. Driving can be performed reliably, and the driving position of the valve element can be confirmed by the rotational driving amount of the stepping motor, so that there is an effect that the configuration is simple and the cost is low. Further, the flow control valve of the present invention includes a housing having an inflow passage and an outflow passage, a valve body having an inflow hole and an outflow hole, a stepping motor that drives the valve body to open and close the valve, and a valve closing position area. Position determination means, a timer means for outputting a signal at predetermined time intervals after the valve is closed, and a signal from the timer means to input a signal from the timer means to drive the stepping motor within a predetermined rotation range with a higher torque than during normal driving. After the valve body is closed,
Since the valve element is periodically driven with a higher torque than usual during a predetermined range from the closed position of the valve, the fixation can be released even if the valve is fixed in a shorter time than the fixed time set by the timer means, Sticking can be reliably prevented.
【００４８】加えて本発明の流量制御弁は、高トルク駆
動時にステッピングモータへの出力パルス周波数を通常
時よりも小さくする駆動速度切換手段を有する制御手段
を設け、所定の条件時ステッピングモータ駆動周波数を
低減し、高トルクで駆動するので、弁体の固着を確実に
防止し、ステッピングモータの小型化や低コスト化を図
れるという効果がある。In addition, the flow control valve of the present invention is provided with a control means having a drive speed switching means for making the output pulse frequency to the stepping motor smaller at the time of high torque driving than at the normal time. , And driving with high torque, the sticking of the valve element is reliably prevented, and the stepping motor can be reduced in size and cost.
【００４９】また本発明の流量制御弁は、高トルク駆動
時にステッピングモータの駆動励磁を変更する駆動励磁
切換手段を有する制御手段を設け、所定の条件時ステッ
ピングモータの駆動励磁を変更し、高トルクで駆動する
ので、弁体の固着を確実に防止できる。しかも、高トル
クで駆動する励磁方式では、ステッピングモータ駆動速
度が通常時よりも速くなるので、流量変更等の応答性の
向上が図れるという効果がある。Further, the flow control valve of the present invention is provided with control means having drive excitation switching means for changing the drive excitation of the stepping motor at the time of high torque driving. , The sticking of the valve body can be reliably prevented. In addition, in the excitation method in which driving is performed with a high torque, the driving speed of the stepping motor is higher than usual, so that there is an effect that responsiveness such as flow rate change can be improved.
【００５０】加えて本発明の流量制御弁は、高トルク駆
動時にステッピングモータへの出力電圧を高くする駆動
電圧切換手段を有する制御手段を設け、所定の条件時ス
テッピングモータの駆動電圧を上げ、高トルクで駆動す
るので、弁体の固着を確実に防止できる。しかも、ステ
ッピングモータ駆動速度が通常時と変わらないので、制
御の簡素化を図れるという効果がある。In addition, the flow control valve of the present invention is provided with a control means having a drive voltage switching means for increasing the output voltage to the stepping motor at the time of high torque driving. Since it is driven by the torque, the sticking of the valve body can be reliably prevented. In addition, the driving speed of the stepping motor is not different from that in the normal operation, so that the control can be simplified.
【図１】本発明の第一の実施例を示す流量制御弁の構成
図FIG. 1 is a configuration diagram of a flow control valve showing a first embodiment of the present invention.
【図２】同流量制御弁のＡ−Ａ断面図FIG. 2 is a cross-sectional view of the flow control valve taken along line AA.
【図３】同流量制御弁の弁体の斜視図FIG. 3 is a perspective view of a valve body of the flow control valve.
【図４】（ａ）同流量制御弁の全閉状態を示すＢ−Ｂ断
面図 （ｂ）同流量制御弁が全閉状態から弁開成方向に１０゜
回転した状態を示すＢ−Ｂ断面図 （ｃ）同流量制御弁の全開状態を示すＢ−Ｂ断面図FIG. 4A is a cross-sectional view taken along the line BB of the flow control valve in a fully closed state. FIG. 4B is a cross-sectional view of the flow control valve rotated 10 ° in the valve opening direction from the fully closed state. (C) BB sectional view showing the fully open state of the flow control valve.
【図５】本発明の第二の実施例を示す流量制御弁の構成
図FIG. 5 is a configuration diagram of a flow control valve showing a second embodiment of the present invention.
【図６】（ａ）同流量制御弁の全閉状態を示すＡ−Ａ断
面図 （ｂ）同流量制御弁が全閉状態から第一の流出路側に１
０゜回転した状態を示すＡ−Ａ断面図 （ｃ）同流量制御弁が全閉状態から第一の流出路側に２
０゜回転した状態を示すＡ−Ａ断面図 （ｄ）同流量制御弁の第一の流出路の全閉状態を示すＡ
−Ａ断面図FIG. 6A is a cross-sectional view taken along the line AA showing the fully closed state of the flow control valve. FIG.
A-A cross-sectional view showing a state of being rotated by 0 °. (C) The flow control valve is moved from the fully closed state to the first outflow path side by 2 degrees.
A-A sectional view showing a state rotated by 0 °. (D) A showing a fully closed state of a first outflow passage of the flow control valve.
-A sectional view
【図７】（ａ）同流量制御弁の全閉状態を示すＢ−Ｂ断
面図 （ｂ）同流量制御弁が全閉状態から第一の流出路側に１
０゜回転した状態を示すＢ−Ｂ断面図 （ｃ）同流量制御弁が全閉状態から第一の流出路側に２
０゜回転した状態を示すＢ−Ｂ断面図 （ｄ）同流量制御弁の第一の流出路の全開状態を示すＢ
−Ｂ断面図FIG. 7 (a) is a cross-sectional view taken along the line BB showing the fully closed state of the flow control valve.
BB sectional view showing a state rotated by 0 °. (C) The flow control valve is moved from the fully closed state to the first outflow path side by 2 degrees.
BB sectional view showing a state rotated by 0 °. (D) B showing a fully opened state of a first outflow passage of the flow control valve.
-B sectional view
【図８】同流量制御弁の弁体回転角度と弁体回転トルク
の関係を示す特性図FIG. 8 is a characteristic diagram showing a relationship between a valve body rotation angle and a valve body rotation torque of the flow control valve.
【図９】従来の流量制御弁の構成図FIG. 9 is a configuration diagram of a conventional flow control valve.
１４ 流量制御弁 １５ ハウジング １６ 流入路 １７ 流出路 １８ 弁体 １９ 流入孔 ２０ 流出孔 ２７ ステッピングモータ ３０ 回転角規制部材（弁位置判別手段） ３１ 回転角規制部（弁位置判別手段） ３４ 制御手段 ３６ 駆動速度切換手段 ３７ タイマ手段 ３８ 流量制御弁 ３９ ハウジング ４０ 流入路 ４１ 第一の流出路 ４２ 第二の流出路 ４３ 弁体 ４４ 流入孔 ４５ 流出孔 ４６ 磁石（弁位置判別手段） ４７ ホール素子（弁位置判別手段） ４８ 制御手段 ５０ 駆動励磁切換手段 Reference Signs List 14 flow control valve 15 housing 16 inflow path 17 outflow path 18 valve element 19 inflow hole 20 outflow hole 27 stepping motor 30 rotation angle regulating member (valve position discriminating means) 31 rotation angle regulating section (valve position discriminating means) 34 control means 36 Drive speed switching means 37 Timer means 38 Flow control valve 39 Housing 40 Inflow path 41 First outflow path 42 Second outflow path 43 Valve element 44 Inlet hole 45 Outlet hole 46 Magnet (valve position discriminating means) 47 Hall element (valve) Position determining means) 48 control means 50 drive excitation switching means
フロントページの続き (56)参考文献 特開 平４−88892（ＪＰ，Ａ) 特開 平６−337079（ＪＰ，Ａ) 特開 平２−143033（ＪＰ，Ａ) 特開 平２−146384（ＪＰ，Ａ) 特開 昭60−231079（ＪＰ，Ａ) 特開 平５−280654（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16K 31/04 F16K 5/06 Continuation of the front page (56) References JP-A-4-88892 (JP, A) JP-A-6-337079 (JP, A) JP-A-2-143303 (JP, A) JP-A-2-146384 (JP) JP-A-60-231079 (JP, A) JP-A-5-280654 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) F16K 31/04 F16K 5/06
Claims (5)
入孔と流出孔を有する弁体と、前記弁体を駆動し、弁の
開閉を行うステッピングモータと、弁の閉止位置領域を
判定する位置判別手段と、前記弁が閉止した後一定時間
ごとに信号を出力するタイマ手段と、前記タイマ手段の
信号を入力し前記ステッピングモータを所定の回転範囲
内で通常駆動時よりも高トルクで駆動する制御手段とか
らなる流量制御弁。1. A housing having an inflow passage and an outflow passage, a valve body having an inflow hole and an outflow hole, a stepping motor for driving the valve body to open and close the valve, and determining a closed position region of the valve. Position discriminating means, timer means for outputting a signal at regular intervals after the valve is closed, and inputting a signal from the timer means to drive the stepping motor within a predetermined rotation range with a higher torque than during normal driving A flow control valve comprising control means for controlling the flow rate.
入孔と流出孔を有する弁体と、前記弁体を駆動し、弁の
開閉を行うステッピングモータと、前記弁の閉止位置領
域を判定する位置判別手段と、前記弁が閉止した後一定
時間ごとに信号を出力するタイマ手段と、前記タイマ手
段の信号を入力した後に前記弁が開成されたとき弁閉止
位置から所定の回転範囲内で前記ステッピングモータを
通常駆動時よりも高トルクで駆動する制御手段からなる
流量制御弁。2. A housing having an inflow passage and an outflow passage, a valve body having an inflow hole and an outflow hole, a stepping motor for driving the valve body to open and close the valve, and determining a closed position area of the valve. Position discriminating means, a timer means for outputting a signal at regular intervals after the valve is closed, and a valve closing when the valve is opened after the signal of the timer means is inputted.
Start the stepping motor within a predetermined rotation range from the position.
A flow control valve comprising control means for driving with a higher torque than during normal driving .
グモータへの出力パルス周波数を通常時よりも小さくす
る駆動速度切換手段を有する請求項１または請求項２記
載の流量制御弁。3. The flow control valve according to claim 1, wherein the control means has a drive speed switching means for lowering an output pulse frequency to the stepping motor at the time of high torque driving as compared with a normal time.
グモータの駆動励磁方式を変更する駆動励磁切換手段を
有する請求項１または請求項２記載の流量制御弁。4. The flow control valve according to claim 1, wherein the control means has a drive excitation switching means for changing a drive excitation method of the stepping motor during high torque driving.
グモータへの出力電圧を高くする駆動電圧切換手段を有
する請求項１または請求項２記載の流量制御弁。5. The flow control valve according to claim 1, wherein the control means includes a drive voltage switching means for increasing an output voltage to the stepping motor during high torque driving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7051264A JP3011043B2 (en) | 1995-03-10 | 1995-03-10 | Flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7051264A JP3011043B2 (en) | 1995-03-10 | 1995-03-10 | Flow control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08247323A JPH08247323A (en) | 1996-09-27 |
| JP3011043B2 true JP3011043B2 (en) | 2000-02-21 |
Family
ID=12882096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7051264A Expired - Fee Related JP3011043B2 (en) | 1995-03-10 | 1995-03-10 | Flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3011043B2 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3885269B2 (en) * | 1997-02-06 | 2007-02-21 | 松下電器産業株式会社 | Fluid control valve control device |
| JP3885268B2 (en) * | 1997-02-06 | 2007-02-21 | 松下電器産業株式会社 | Fluid control valve control device |
| JPH10267153A (en) * | 1997-03-24 | 1998-10-09 | Matsushita Electric Ind Co Ltd | Controller for fluid control valve |
| JP2000018426A (en) * | 1998-07-01 | 2000-01-18 | Ricoh Elemex Corp | Cutoff valve driving and controlling device |
| JP2000065245A (en) * | 1998-08-21 | 2000-03-03 | Denso Corp | Flow rate control valve |
| JP2001200947A (en) * | 2000-01-14 | 2001-07-27 | Denso Corp | Flow control valve |
| JP4580497B2 (en) * | 2000-04-14 | 2010-11-10 | パナソニック株式会社 | Gas shut-off device |
| JP2009041679A (en) | 2007-08-09 | 2009-02-26 | Toyota Motor Corp | Actuator, range change-over device for automatic transmission, and parking device |
| JP5115808B2 (en) * | 2008-05-15 | 2013-01-09 | 矢崎エナジーシステム株式会社 | Gas shut-off valve unit |
| JP5730544B2 (en) * | 2010-11-18 | 2015-06-10 | 株式会社医器研 | Overheat detection unit and oxygen concentrator |
| JP5764803B2 (en) * | 2011-03-29 | 2015-08-19 | 株式会社Ｌｉｘｉｌ | Water supply control valve |
| JP6121138B2 (en) * | 2012-10-31 | 2017-04-26 | 株式会社キッツ | Electric actuator for valve and emergency shutoff valve / emergency release valve |
| JP2016192039A (en) | 2015-03-31 | 2016-11-10 | アズビル株式会社 | Flow control valve |
| JP6183417B2 (en) * | 2015-06-26 | 2017-08-23 | トヨタ自動車株式会社 | Fuel cell system |
| JP6285523B2 (en) * | 2016-10-24 | 2018-02-28 | 株式会社キッツ | Electric valve actuator, emergency shutoff valve / emergency release valve, and valve electric actuator abnormality diagnosis method |
| JP2020026912A (en) * | 2018-08-10 | 2020-02-20 | 株式会社デンソー | Motor control device, integrated valve device, and heat exchanger |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60231079A (en) * | 1984-04-26 | 1985-11-16 | Toshiba Corp | Control method of expansion valve |
| JPH07109262B2 (en) * | 1988-11-25 | 1995-11-22 | 松下電器産業株式会社 | Hot water mixing controller |
| JPH02146384A (en) * | 1988-11-25 | 1990-06-05 | Matsushita Electric Ind Co Ltd | Hot water and water mixing controller |
| JP2900280B2 (en) * | 1990-07-27 | 1999-06-02 | 株式会社 三協精機製作所 | Opening / closing drive |
| JP3040031B2 (en) * | 1992-04-03 | 2000-05-08 | 愛知時計電機株式会社 | Drive system of stepping motor for shut-off valve operation and safety type gas meter. |
| JPH06337079A (en) * | 1993-05-26 | 1994-12-06 | Nuclear Fuel Ind Ltd | Motor-controlled valve device |
-
1995
- 1995-03-10 JP JP7051264A patent/JP3011043B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08247323A (en) | 1996-09-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3011043B2 (en) | Flow control valve | |
| JPH0571656A (en) | Fluid cutoff valve control method | |
| JP3025636B2 (en) | Gas passage shut-off valve mechanism and gas meter provided therewith | |
| JPS639249B2 (en) | ||
| JP2950161B2 (en) | Mixing valve and hot water mixing device | |
| JP2000258201A (en) | Water supply meter | |
| JP2762920B2 (en) | Flow control valve | |
| JP3398974B2 (en) | Flow control device | |
| JPH09229212A (en) | Valve device | |
| JP4246814B2 (en) | Shower dispenser | |
| JP3885269B2 (en) | Fluid control valve control device | |
| JP3380268B2 (en) | Flow control device | |
| JPH10267153A (en) | Controller for fluid control valve | |
| JP2002196825A (en) | Fluid controller | |
| JPH1165672A (en) | Flow rate measurement controller | |
| JPH1194602A (en) | Flow channel opening adjusting device provided with seismoscopic function | |
| JP2669466B2 (en) | Control valve | |
| JP3804124B2 (en) | Fluid control valve control device | |
| JPH07260019A (en) | Water flow controller for fluid control valve and sanitary washing toilet seat | |
| JPH0323367A (en) | Idle speed control valve | |
| JP2000097360A (en) | Passage cut-off device | |
| JPS6238061Y2 (en) | ||
| JPS60175885A (en) | Flow rate control device | |
| JPH10220615A (en) | Fluid control valve control method | |
| JP2513353B2 (en) | Hot water mixing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071210 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081210 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20091210 Year of fee payment: 10 |
|
| LAPS | Cancellation because of no payment of annual fees |