JP3295889B2 - Operating mechanism of fluid flow control valve or fluid flow switching valve in refrigeration cycle device - Google Patents
Operating mechanism of fluid flow control valve or fluid flow switching valve in refrigeration cycle deviceInfo
- Publication number
- JP3295889B2 JP3295889B2 JP21920199A JP21920199A JP3295889B2 JP 3295889 B2 JP3295889 B2 JP 3295889B2 JP 21920199 A JP21920199 A JP 21920199A JP 21920199 A JP21920199 A JP 21920199A JP 3295889 B2 JP3295889 B2 JP 3295889B2
- Authority
- JP
- Japan
- Prior art keywords
- motor
- fluid flow
- valve
- brush
- rotation
- 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
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Landscapes
- Sliding Valves (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Flow Control (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Direct Current Motors (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は駆動源としてブラシ
付き整流子モーターを用いた冷凍サイクル装置（冷暖房
サイクル装置を含む）における流体流量制御弁又は流体
流路切換弁の作動機構に関する。The present invention relates to a brush as a driving source.
Fluid flow control valve or fluid in a refrigeration cycle device (including a cooling and heating cycle device) using a commutator motor with a motor
The present invention relates to an operation mechanism of a flow path switching valve .
【０００２】[0002]
【従来の技術と発明が解決しようとする課題】一般的に
累積回転数又は回転角を制御できるモーターとしてステ
ップモーターが知られているが、複雑であるばかりか高
度な製造技術を要し、極めて高価である問題点を有して
いる。2. Description of the Related Art In general, a step motor is known as a motor capable of controlling the cumulative number of rotations or the rotation angle. However, the step motor is not only complicated but also requires advanced manufacturing techniques. It has the problem of being expensive.
【０００３】而して発明者は上記ステップモーターの代
替として既知のブラシ付き整流子モーターを駆動源とし
て用いながら、該モーター駆動軸に永久磁石と磁性体を
介して減速ギアを結合し、該減速ギアの出力を扇形回動
弁体に伝達して扇形回動弁体 の回転角の制御が行えるよ
うにした冷凍サイクル装置における流体流量制御弁又は
流体流路切換弁の作動機構を提供するものである。[0003] The inventor of the present invention has replaced the step motor.
A known brushed commutator motor as the drive source
While using a permanent magnet and magnetic material on the motor drive shaft.
Reduction gear is connected via a fan, and the output of the reduction gear
A fluid flow control valve or a fluid flow control valve in a refrigeration cycle device which is capable of controlling the rotation angle of a sector-shaped rotary valve body by transmitting to a valve body.
An object of the present invention is to provide an operation mechanism of a fluid flow switching valve .
【０００４】ブラシ付き整流子モーターはモーター駆動
軸の周面に奇数個の整流子片を間隔的に取り付けると共
に、モーター駆動軸の１８０度反対側に対向して配した
ブラシを上記整流子片に接触させて電力の供給を行うよ
うにしており、モーターとしては極めて安価で入手が容
易である。In a commutator motor with a brush, an odd number of commutator pieces are mounted on the peripheral surface of a motor drive shaft at intervals, and a brush arranged opposite to the motor drive shaft by 180 degrees is provided on the commutator piece. Electric power is supplied by contact, and the motor is extremely inexpensive and easily available.
【０００５】本発明はこの安価で入手の容易なブラシ付
き整流子モーターを上記ステップモーターの代替品とし
て使用できるようにしたものであり、従来ステップモー
ターを駆動源として用いていた冷凍サイクル装置におけ
る流体流量制御弁又は流体流路切換弁のコストダウンを
達成する。The present invention is intended to use this inexpensive and easily available commutator motor with a brush as a substitute for the above-mentioned stepping motor. In a refrigeration cycle apparatus which has conventionally used a stepping motor as a drive source.
The cost of the fluid flow control valve or the fluid flow path switching valve can be reduced.
【０００６】[0006]
【課題を解決するための手段】前記のように、ブラシ付
き整流子モーターは駆動軸の回転に伴ってブラシと整流
子片が周期的に接触と解除を繰り返す。As described above, in a commutator motor with a brush, the brush and the commutator piece repeatedly contact and release periodically as the drive shaft rotates.
【０００７】本発明はブラシ付き整流子モーターの駆動
軸の回転駆動力を減速ギアを介し扇形回動弁体に伝達し
て該扇形回動弁体の扇形回動角を制御する構成を有する
と共に、上記ブラシが整流子片間を通過する時に発生す
るパルスを検出し、このパルス発生回数によりモーター
の累積回転数を制御する構成とした冷凍サイクル装置に
おける流体流量制御弁又は流体流路切換弁の作動機構に
おいて、上記ブラシ付き整流子モーターの駆動軸に永久
磁石を設け、上記減速ギアの入力軸に磁性体を設け、上
記ブラシ付き整流子モーターにより回転される永久磁石
の回転を磁力により磁性体に伝達し、該磁性体の回転を
上記減速ギア並びに上記扇形回動弁体に伝達する構成と
した。 The present invention drives a commutator motor with a brush.
The rotational driving force of the shaft is transmitted to the fan-shaped rotary valve via the reduction gear.
To control the fan-shaped turning angle of the fan-shaped turning valve body by using
Occurs when the brush passes between the commutator pieces.
Pulse is detected and the number of pulses
Refrigeration cycle device configured to control the cumulative rotation speed of
Operating mechanism of fluid flow control valve or fluid flow switching valve
In addition, it is permanently attached to the drive shaft of the brushed commutator motor.
A magnet is provided, and a magnetic body is provided on the input shaft of the reduction gear.
Permanent magnet rotated by a commutator motor with brush
Is transmitted to the magnetic body by magnetic force, and the rotation of the magnetic body is
Transmission to the reduction gear and the sector rotary valve body;
did.
【０００８】これにより上記パルスを検出するブラシ表
面と整流子片表面が過大な拘束電流によって損傷する問
題を解決できる。 Thus, a brush table for detecting the pulse is provided.
Problem that the surface and the commutator half surface are damaged by excessive restraint current
Can solve the problem .
【０００９】[0009]
【発明の実施の形態】以下本発明の実施の形態例を図１
乃至図５に基づいて説明する。FIG. 1 shows an embodiment of the present invention.
A description will be given based on FIGS.
【００１０】図１乃至図３において１は上記ブラシ付き
整流子モーターにおける駆動軸を示し、該駆動軸１の周
面に絶縁材を介して同軸１と同芯円上に、３個の定長の
整流子片２が間隔３をおいて配され、他方駆動軸１の１
８０度反対側に一対のブラシ４が配されて上記整流子片
２に弾力的に接触している。1 to 3, reference numeral 1 denotes a drive shaft of the brushed commutator motor, and three fixed lengths are formed on a peripheral surface of the drive shaft 1 on a concentric circle with the coaxial 1 via an insulating material. Commutator pieces 2 are arranged at intervals 3 while the other
A pair of brushes 4 are arranged on the opposite side by 80 degrees and are in elastic contact with the commutator pieces 2.
【００１１】図１Ａ，Ｂ，Ｃに示すように、上記整流子
片２はモーター駆動軸１と一体に回転し、回転の過程に
おいて一方のブラシ４と他方のブラシ４は交互に接離を
繰り返す。As shown in FIGS. 1A, 1B and 1C, the commutator piece 2 rotates integrally with the motor drive shaft 1, and in the process of rotation, one brush 4 and the other brush 4 alternately come and go alternately. .
【００１２】つまり各ブラシ４はモーター駆動軸１の一
回転毎に各３回整流子片２間を通過し、両ブラシ４は計
６回整流子片２間を通過し、各通過毎にパルスを発生す
る。That is, each brush 4 passes between the commutator pieces 2 three times for each revolution of the motor drive shaft 1, and both brushes 4 pass between the commutator pieces 2 a total of six times, with a pulse for each pass. Occurs.
【００１３】上記ブラシ４が整流子片２間を通過する時
に発生するパルスを検出し、このパルス発生回数により
モーター１６の累積回転数を制御する。A pulse generated when the brush 4 passes between the commutator pieces 2 is detected, and the cumulative number of rotations of the motor 16 is controlled based on the number of times the pulse is generated.
【００１４】図２に示すように、マイナス側のブラシ４
と直列に電流検出抵抗等の電流波形検出部１３を接続
し、該電流波形検出部１３とブラシ４間に直流成分カッ
ト用コンデンサー５の一端を接続し、同コンデンサー５
の他端をコンパレーター６のプラス側に接続する。As shown in FIG. 2, the brush 4 on the minus side
A current waveform detecting unit 13 such as a current detecting resistor is connected in series with the brush, and one end of a DC component cutting capacitor 5 is connected between the current waveform detecting unit 13 and the brush 4.
Is connected to the plus side of the comparator 6.
【００１５】換言すると、コンパレーター６のプラス端
子をコンデンサー５を介して電流波形検出部１３とブラ
シ４間に接続する。In other words, the plus terminal of the comparator 6 is connected between the current waveform detector 13 and the brush 4 via the capacitor 5.
【００１６】更に上記コンパレーター６のマイナス側に
敷居値設定抵抗１７を接続する。Further, a threshold value setting resistor 17 is connected to the minus side of the comparator 6.
【００１７】上記コンパレーター６の出力信号によって
累積回転数（回転角）を制御する。The cumulative number of rotations (rotation angle) is controlled by the output signal of the comparator 6.
【００１８】上記コンパレーター６のプラス側には、電
流波形検出部１３にて検出されたパルス成分を含む波形
（電圧信号）が入力され、この信号と敷居値設定抵抗１
７によって予め設定された電圧とを比較し、設定電圧と
同じ電圧信号が一致した時に１回のパルスと判断し、前
記パルスが発生する度にパルス信号を出力し、これをモ
ーター１６の回転数制御信号として用いる。A waveform (voltage signal) including a pulse component detected by the current waveform detector 13 is input to the plus side of the comparator 6, and this signal and the threshold value setting resistor 1 are inputted.
7, and when the same voltage signal as the set voltage coincides, it is determined that the pulse is a single pulse, and a pulse signal is output each time the pulse is generated. Used as a control signal.
【００１９】上記コンパレーター６はそのマイナス端子
よりプラス端子の電圧が低くなると、コンパレーター６
内蔵のトランジスターがＯＮになり、１個のパルス信号
を出力する。When the voltage of the plus terminal becomes lower than the minus terminal of the comparator 6, the comparator 6
The built-in transistor turns on and outputs one pulse signal.
【００２０】即ち各ブラシ４が整流子片２の間隔３を通
過する毎に上記条件が形成され、１回通過する毎に１個
のパルスを出力する。That is, the above conditions are established each time each brush 4 passes through the interval 3 of the commutator piece 2, and one pulse is output each time the brush 4 passes.
【００２１】即ちモーター駆動軸１が一回転する時に６
個のパルス信号をコンパレーター６から出力する。That is, when the motor drive shaft 1 makes one rotation, 6
The pulse signals are output from the comparator 6.
【００２２】図２に示すように、上記コンパレーター６
の出力信号をＣＰＵ８内のカウンター１８に導入し、予
め設定されたパルス数が導入されたパルス数と一致する
時に、モータードライバー９を介してモーター１６を停
止する。As shown in FIG. 2, the comparator 6
Is output to the counter 18 in the CPU 8, and when the preset pulse number matches the introduced pulse number, the motor 16 is stopped via the motor driver 9.
【００２３】即ち正転指令ライン３４又は逆転指令ライ
ン３５による指令信号を停止し、モーター１６を停止す
る。That is, the command signal from the forward rotation command line 34 or the reverse rotation command line 35 is stopped, and the motor 16 is stopped.
【００２４】ＣＰＵ８とモータードライバー９間は正転
指令ライン３４と逆転指令ライン３５とによって接続さ
れており、正転指令ライン３４に正転指令信号（ＣＷ）
を流すか、逆転指令ライン３５に逆転指令信号（ＣＣ
Ｗ）を流すことにより、モーター１６は正転又は逆転す
る。The CPU 8 and the motor driver 9 are connected by a forward rotation command line 34 and a reverse rotation command line 35. The forward rotation command line 34 outputs a forward rotation command signal (CW).
Or the reverse command signal (CC
By flowing W), the motor 16 rotates forward or reverse.
【００２５】ＣＰＵ８は正転又は逆転と回転数の指令信
号を自ら発するか、又は後記するサーミスター等の外部
からの信号によって同指令信号を発する。The CPU 8 itself issues a command signal for forward rotation or reverse rotation and the number of revolutions, or issues the same command signal by an external signal such as a thermistor described later.
【００２６】上記正転と逆転の指令ライン３４，３５の
双方を通じて指令信号（ＣＷ，ＣＣＷ）を流すと、モー
ター１６にブレーキがかかりモーター１６は停止する。When a command signal (CW, CCW) flows through both the forward and reverse command lines 34 and 35, the motor 16 is braked and the motor 16 stops.
【００２７】つまり一方の指令ライン３４又は３５を通
じて正転又は逆転している時に、他方をＯＮにして指令
信号を発すると、モーター１６にブレーキがかかりモー
ター１６は停止する。That is, when the command signal is issued by turning on the other while the motor 16 is rotating forward or reverse through one of the command lines 34 or 35, the motor 16 is braked and the motor 16 stops.
【００２８】又ＣＰＵ８とモータードライバー９間はモ
ーター印加電圧指令ライン３７が接続されており、上記
モーター１６の回転始期と終期におけるモーター印加電
圧を低減するように制御し、モーター１６をその始期と
終期において緩回転し、回転開始時と停止時におけるノ
イズの発生を抑止する。A motor applied voltage command line 37 is connected between the CPU 8 and the motor driver 9 to control the motor applied voltage at the start and end of the rotation of the motor 16 so as to reduce the motor 16 at its start and end. , And the occurrence of noise at the start and stop of rotation is suppressed.
【００２９】図３に示すように、上記モーター１６の駆
動軸１には減速ギア３６を結合し、該減速ギア３６の出
力を制御することができる。As shown in FIG. 3, a reduction gear 36 is connected to the drive shaft 1 of the motor 16, and the output of the reduction gear 36 can be controlled.
【００３０】モーター１６の回転数の検出、即ち前記パ
ルスの検出には一定のバラツキが予測される。このモー
ター１６に減速ギア３６を結合し、その出力回転数を減
ずることにより、上記バラツキを良好に吸収することが
できる。即ち減速ギア３６によってトルクを増大し、且
つバラツキを可及的に減殺する。A certain variation is expected in the detection of the rotation speed of the motor 16, that is, in the detection of the pulse. By connecting the reduction gear 36 to the motor 16 and reducing the output rotation speed, the above-described variation can be favorably absorbed. That is, the torque is increased by the reduction gear 36, and the variation is reduced as much as possible.
【００３１】図３乃至図５は、上記図２のブラシ付き整
流子モーターを使用した流体流路切換弁又は流体流量制
御弁の作動機構を構成した実施形態例を示している。以
下流体流量制御弁１０について説明する。FIGS. 3 to 5 show the brush-equipped fixing device of FIG.
The embodiment example which constituted the operating mechanism of the fluid flow path switching valve or the fluid flow control valve using the flow motor is shown. Hereinafter, the fluid flow control valve 10 will be described.
【００３２】上記流体流量制御弁１０は、低圧又は高圧
の流体流入パイプ１１と高圧又は低圧の流体流出パイプ
１２間に設けられた扇形回動される扇形回動弁体１４を
備える。The fluid flow control valve 10 has a fan-shaped rotatable valve body 14 provided between a low-pressure or high-pressure fluid inflow pipe 11 and a high-pressure or low-pressure fluid outflow pipe 12.
【００３３】上記扇形回動弁体１４に上記流体流入パイ
プ１１の出口側開口から吐出される流体を通流する弁孔
１５を設け、該扇形回動弁体１４の回動角を制御して上
記流体通流弁孔１５と上記流体流出パイプ１２の入口側
開口との連通面積を調整し、例えばコンプレッサーへ供
給される流体の流量を調整する構成とする。The sector-shaped rotary valve element 14 is provided with a valve hole 15 through which the fluid discharged from the outlet side opening of the fluid inflow pipe 11 flows, and the rotation angle of the sector-shaped rotary valve element 14 is controlled. The communication area between the fluid flow valve hole 15 and the inlet-side opening of the fluid outlet pipe 12 is adjusted, for example, to adjust the flow rate of the fluid supplied to the compressor.
【００３４】上記扇形回動弁体１４は流体流入パイプ１
１の出口側開口端面と流体流出パイプ１２の入口側開口
端面との間に介在する。The above-mentioned sector-shaped rotary valve element 14 is connected to the fluid inflow pipe 1.
1 between the outlet-side open end face and the fluid-outflow pipe 12 on the inlet-side open end face.
【００３５】図３に示すように、上記扇形回動弁体１４
はモーター１６を駆動源とし、該モーター１６の回転軸
１の回転駆動力を減速ギア３６を介して扇形回動弁体１
４に伝達し、これを減速回動せしめる。As shown in FIG.
Uses the motor 16 as a drive source, and transmits the rotational driving force of the rotating shaft 1 of the motor 16 via the reduction gear 36 to the sector-shaped rotary valve element 1.
4, which is decelerated and rotated.
【００３６】上記減速ギア３６の軸２２を中心として回
動する出力ギア１９は、軸２０を中心に扇形回動する扇
形回動弁体１４の端部に設けた扇形ラック２１と噛み合
い、前記図１，図２に基づき説明した制御装置に基づ
き、モーター１６の正逆回転方向と正逆回転量を制御す
ることにより出力ギア１９と扇形ラック２１の正逆回動
方向と正逆回動角を制御し、よって扇形回動弁体１４の
正逆回動方向と正逆回動角を制御し、上記流体通流弁孔
１５と上記流体流出パイプ１２の入口側開口との連通面
積を調整し、上記コンプレッサー等へ供給される流体の
流量を調整する構成とする。The output gear 19 that rotates about the shaft 22 of the reduction gear 36 meshes with a fan-shaped rack 21 provided at the end of the fan-shaped rotary valve body 14 that rotates in a sector around the shaft 20. The forward and reverse rotation directions and forward and reverse rotation angles of the output gear 19 and the sector rack 21 are controlled by controlling the forward and reverse rotation directions and the forward and reverse rotation amounts of the motor 16 based on the control device described with reference to FIG. Thus, the forward / reverse rotation direction and the forward / reverse rotation angle of the fan-shaped rotary valve body 14 are controlled, and the communication area between the fluid flow valve hole 15 and the inlet opening of the fluid outlet pipe 12 is adjusted. The configuration is such that the flow rate of the fluid supplied to the compressor or the like is adjusted.
【００３７】好ましくは上述の通り、上記扇形回動弁体
１４を流体流入パイプ１１の出口側開口端面と流体流出
パイプ１２の入口側開口端面との間に介在する。Preferably, as described above, the fan-shaped rotary valve element 14 is interposed between the outlet opening end face of the fluid inflow pipe 11 and the inlet opening end face of the fluid outflow pipe 12.
【００３８】詳述すると図３に示すように、流体流入パ
イプ１１の端部開口面と流体流出パイプ１２の端部開口
面とを、ケーシング２３内において同一軸線において対
向させ、他方ケーシング２３内に設けた上記扇形回動弁
体１４を両パイプ１１，１２の開口端面間に介在し、軸
線と直交する方向に扇形回動可に設置する。More specifically, as shown in FIG. 3, the end opening surface of the fluid inflow pipe 11 and the end opening surface of the fluid outflow pipe 12 are opposed to each other on the same axis in the casing 23, and The provided fan-shaped rotary valve element 14 is interposed between the open end faces of the pipes 11 and 12 and is installed so as to be fan-shaped rotatable in a direction orthogonal to the axis.
【００３９】例えばケーシング本体２４を一体プレス成
形又は一体合成樹脂成形して成るカップ形にし、該カッ
プ形ケーシング本体２４の開口部に板材から成る第１弁
座２５と同第２弁座２６を気密的に且つ平行に嵌着し、
該第１弁座２５と第２弁座２６間に板材から成る上記扇
形回動弁体１４を介在し、該弁体１４が第１，第２弁座
２５，２６の内面に摺接しつつ同弁座と平行に扇形回動
できるように配置する。For example, the casing body 24 is formed into a cup shape by integral press molding or integral synthetic resin molding, and the first valve seat 25 and the second valve seat 26 made of a plate material are hermetically sealed at the opening of the cup-shaped casing body 24. Fit in parallel and
The fan-shaped rotary valve body 14 made of a plate material is interposed between the first valve seat 25 and the second valve seat 26, and the valve body 14 slides on the inner surfaces of the first and second valve seats 25 and 26. It is arranged so as to be able to rotate in a sector parallel to the valve seat.
【００４０】扇形回動弁体１４は軸２０によって第１弁
座２５又は第２弁座２６に扇形回動可に軸支する。The fan-shaped rotary valve element 14 is pivotally supported by a shaft 20 on the first valve seat 25 or the second valve seat 26 so as to be fan-rotatable.
【００４１】同様に減速ギア３６を上記ケーシング２３
内に内装し、同減速ギア３６の出力軸２２を第１弁座２
５又は第２弁座２６に軸支し、該出力軸２２を中心に回
動する出力ギア１９を第１弁座２５と第２弁座２６の間
に介在し、上記扇形回動弁体１４の端部に設けた扇形ラ
ック２１と噛み合せて運動伝達を行い、扇形回動弁体１
４を第１，第２弁座２５，２６間において扇形回動可に
する。Similarly, the reduction gear 36 is connected to the casing 23.
And the output shaft 22 of the reduction gear 36 is connected to the first valve seat 2.
5 or the second valve seat 26, an output gear 19 pivoting about the output shaft 22 is interposed between the first valve seat 25 and the second valve seat 26, The motion is transmitted by engaging with a fan-shaped rack 21 provided at the end of the fan-shaped rotary valve 1.
4 is made fan-shaped rotatable between the first and second valve seats 25 and 26.
【００４２】他方流体流入パイプ１１の端部をケーシン
グ２３の天壁、即ちカップ形ケーシング本体２４の底壁
より貫通してケーシング２３内に突入させ、該パイプ１
１端部を上記第１弁座２５に支持させると共に、同パイ
プ１１の端部開口を第１弁座２５に設けた弁孔２７と同
芯に連通させ、更に流体流出パイプ１２の端部を第２弁
座２６に支持させると共に、同パイプ１２の端部開口を
第２弁座２６に設けた弁孔２８と同芯に連通させ、よっ
て流体通流弁孔１５と弁孔２７，２８を同芯に連通さ
せ、且つこれら１５，２７，２８と両パイプ１１，１２
の開口とを相互に同芯に連通せしめる。要は、両パイプ
１１，１２を扇形回動弁体１４を介して同芯に連通せし
める。On the other hand, the end of the fluid inflow pipe 11 penetrates through the top wall of the casing 23, that is, the bottom wall of the cup-shaped casing body 24, and protrudes into the casing 23.
One end is supported by the first valve seat 25, the end opening of the pipe 11 is communicated concentrically with a valve hole 27 provided in the first valve seat 25, and the end of the fluid outflow pipe 12 is further connected. While being supported by the second valve seat 26, the end opening of the pipe 12 is communicated concentrically with the valve hole 28 provided in the second valve seat 26, so that the fluid flow valve hole 15 and the valve holes 27 and 28 are connected. These pipes are connected to the same core, and the pipes 11 and 12
And concentrically communicate with each other. In short, the two pipes 11 and 12 are concentrically connected via the fan-shaped rotary valve element 14.
【００４３】上記モーター１６はケーシング２３の天
壁、即ちカップ形ケーシング本体２４の底壁外表面側に
取り付け支持して上記両パイプ１１，１２と平行な回転
軸１７に上記減速ギア３６を連結する。該減速ギア３６
とモーター１６の駆動軸１間には永久磁石２９を介在し
てケーシング２３内に内装し、モーターの回転駆動力を
永久磁石２９を介して減速ギア３６に伝達する。The motor 16 is mounted and supported on the top wall of the casing 23, that is, on the outer surface of the bottom wall of the cup-shaped casing body 24, and connects the reduction gear 36 to the rotating shaft 17 parallel to the pipes 11 and 12. . The reduction gear 36
A permanent magnet 29 is interposed between the motor and the drive shaft 1 of the motor 16, and is housed in the casing 23, and the rotational driving force of the motor is transmitted to the reduction gear 36 via the permanent magnet 29.
【００４４】詳述すると、モーター１６の駆動軸１に永
久磁石２９を一体に取り付け、他方減速ギア３６の入力
軸３３に磁性体から成る吸着板３０を設け、モーター１
６の駆動によって永久磁石２９が回動すると磁力により
吸着板３０が回動し、この吸着板３０の回動により減速
ギア３６を回動し、出力ギア１９を回動するようにす
る。More specifically, a permanent magnet 29 is integrally attached to the drive shaft 1 of the motor 16, while an attraction plate 30 made of a magnetic material is provided on the input shaft 33 of the reduction gear 36.
When the permanent magnet 29 is rotated by the drive of the motor 6, the suction plate 30 is rotated by the magnetic force, and the rotation of the suction plate 30 causes the reduction gear 36 to rotate and the output gear 19 to rotate. I do.
【００４５】上記扇形回動弁体１４はサーミスターに代
表される冷暖房温又は冷凍温を検出する温度センサーの
検出信号を前記ＣＰＵ８に入力し、その指令により正逆
回動と正逆回動角が制御され、この正逆回動位置（最大
開口と最小開口の原点）において扇形回動弁体１４を正
確に停止させるためのストッパー３１，３２を備える。The fan-shaped rotary valve element 14 inputs a detection signal of a temperature sensor for detecting a cooling / heating temperature or a freezing temperature typified by a thermistor to the CPU 8, and in accordance with the command, forward / reverse rotation and forward / reverse rotation angle. Are provided, and stoppers 31 and 32 for accurately stopping the sector-shaped rotary valve element 14 at the forward and reverse rotation positions (the origins of the maximum opening and the minimum opening) are provided.
【００４６】上記ストッパー３１，３２は第１，第２弁
座２５，２６間の空間に立設されたピンにて形成する。
扇形回動弁体１４の扇形回動角はストッパー３１，３２
たる一対のピン間においてその最大扇形回動角が制限さ
れる。The stoppers 31, 32 are formed by pins provided upright in the space between the first and second valve seats 25, 26.
The fan-shaped turning angle of the fan-shaped turning valve body 14 is determined by stoppers 31 and 32.
The maximum fan-shaped pivot angle between the pair of barrel pins is limited.
【００４７】図４に示すように、扇形回動弁体１４が一
方のストッパー３２に当接している時、弁孔１５と弁孔
２７，２８とは部分的に連通した状態に置かれる。即ち
最小連通開口面積において連通し待機する。As shown in FIG. 4, when the fan-shaped rotary valve element 14 is in contact with one of the stoppers 32, the valve hole 15 and the valve holes 27 and 28 are placed in a partially connected state. That is, the communication waits at the minimum communication opening area.
【００４８】この待機状態において、扇形回動弁体１４
がストッパー３１へ向け一定量回動されることにより、
弁孔１５と弁孔２７，２８との連通面積が増大され、図
５に示すように、ストッパー３１に弁体１４が当接する
ことにより、弁孔１５と弁孔２７，２８とは全開口面積
において連通する。即ち、最大連通開口面積となる。In this standby state, the sector-shaped rotary valve element 14
Is rotated by a fixed amount toward the stopper 31,
The communication area between the valve hole 15 and the valve holes 27 and 28 is increased, and as shown in FIG. 5, when the valve element 14 comes into contact with the stopper 31, the total opening area of the valve holes 15 and the valve holes 27 and 28 is increased. Communicate at. That is, it is the maximum communication opening area.
【００４９】この連通面積の制御により、コンプレッサ
ー等へ供給される流体の供給量が制御されるのである。By controlling the communication area, the supply amount of the fluid supplied to the compressor or the like is controlled.
【００５０】[0050]
【発明の効果】本発明によれば安価で入手の容易なブラ
シ付き整流子モーターをステップモーターの代替品とし
て使用でき、従来のステップモーターを駆動源として用
いていた冷凍サイクル装置における流体流量制御弁又は
流体流路切換弁のコストダウンを達成する。According to the present invention, a commutator motor with a brush that is inexpensive and easily available can be used as a substitute for a stepping motor, and a fluid flow control valve in a refrigeration cycle apparatus using a conventional stepping motor as a driving source. Or
A cost reduction of the fluid flow path switching valve is achieved.
【００５１】殊に冷凍サイクル装置においては、サイク
ル内に膨張弁や容量制御弁等と呼称される複数の流量制
御弁を用いており、これらを上記ブラシ付き整流子モー
ターを用いた流路切換弁又は流量制御弁に転換すること
により、大幅なコストダウンに寄与でき、その性能を維
持できる。In particular, in a refrigeration cycle apparatus, a plurality of flow control valves called an expansion valve, a capacity control valve, etc. are used in the cycle, and these are used with the commutator motor with brush . By switching to the used flow path switching valve or flow control valve, it can contribute to significant cost reduction and maintain its performance.
【図１】Ａ，Ｂ，Ｃはブラシ付き整流子モーターにおけ
る整流子片とブラシの動作状態を説明する要部断面図。1A, 1B, and 1C are cross-sectional views of a main part illustrating operation states of a commutator piece and a brush in a commutator motor with a brush.
【図２】上記ブラシ付き整流子モーターの累積回転数又
は減速ギアの累積回転数（回転角）を制御する回路例を
示す図。FIG. 2 is a diagram showing an example of a circuit for controlling the cumulative rotational speed of the commutator motor with brush or the cumulative rotational speed (rotation angle) of a reduction gear.
【図３】上記ブラシ付き整流子モーターを用いた流体流
量制御弁を示す縦断面図。FIG. 3 is a longitudinal sectional view showing a fluid flow control valve using the commutator motor with a brush.
【図４】上記流体流量制御弁の部分開放状態を示す横断
面図。FIG. 4 is a cross-sectional view showing a partially opened state of the fluid flow control valve.
【図５】上記流体流量制御弁の完全開放状態を示す横断
面図。FIG. 5 is a cross-sectional view showing a completely open state of the fluid flow control valve.
１ モーター駆動軸 ２ 整流子片 ３ 間隔 ４ ブラシ ５ 直流成分カット用コンデンサー ６ コンパレーター ８ ＣＰＵ ９ モータードライバー １０ 流体流量制御弁 １１ 流体流入パイプ １２ 流体流出パイプ １３ 電流波形検出部 １４ 扇形回動弁体 １５ 弁孔 １６ ブラシ付き整流子モーター １７ 敷居値設定抵抗 １８ カウンター １９ 出力ギア ２０ 軸 ２１ 扇形ラック ２２ 出力軸 ２３ ケーシング ２４ ケーシング本体 ２５ 第１弁座 ２６ 第２弁座 ２７，２８ 弁孔 ２９ 永久磁石 ３０ 吸着板 ３１，３２ ストッパー ３３ 入力軸 ３４ 正転指令ライン ３５ 逆転指令ライン ３６ 減速ギア ３７ モーター印加電圧指令ラインDESCRIPTION OF SYMBOLS 1 Motor drive shaft 2 Commutator piece 3 Interval 4 Brush 5 DC component cutting capacitor 6 Comparator 8 CPU 9 Motor driver 10 Fluid flow control valve 11 Fluid inflow pipe 12 Fluid outflow pipe 13 Current waveform detector 14 Sector-shaped rotary valve REFERENCE SIGNS LIST 15 valve hole 16 brushed commutator motor 17 threshold value setting resistance 18 counter 19 output gear 20 shaft 21 fan-shaped rack 22 output shaft 23 casing 24 casing body 25 first valve seat 26 second valve seat 27, 28 valve hole 29 permanent magnet 30 Suction plate 31, 32 Stopper 33 Input shaft 34 Forward rotation command line 35 Reverse rotation command line 36 Reduction gear 37 Motor applied voltage command line
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H02P 5/00 - 5/26 H02P 7/00 - 7/34 F16K 3/08 F16K 31/04 G05D 7/06 Continuation of the front page (58) Field surveyed (Int. Cl. 7 , DB name) H02P 5/00-5/26 H02P 7/00-7/34 F16K 3/08 F16K 31/04 G05D 7/06
Claims (1)
駆動力を減速ギアを介し扇形回動弁体に伝達して該扇形
回動弁体の扇形回動角を制御する構成を有すると共に、
上記ブラシが整流子片間を通過する時に発生するパルス
を検出し、このパルス発生回数によりモーターの累積回
転数を制御する構成とした冷凍サイクル装置における流
体流量制御弁又は流体流路切換弁の作動機構において、
上記ブラシ付き整流子モーターの駆動軸に永久磁石を設
け、上記減速ギアの入力軸に磁性体を設け、上記ブラシ
付き整流子モーターにより回転される永久磁石の回転を
磁力により磁性体に伝達し、該磁性体の回転を上記減速
ギア並びに上記扇形回動弁体に伝達する構成としたこと
を特徴とする冷凍サイクル装置における流体流量制御弁
又は流体流路切換弁の作動機構。1. Rotation of a drive shaft of a commutator motor with a brush
The driving force is transmitted to the fan-shaped rotary valve via a reduction gear,
With a configuration for controlling the sector-shaped rotation angle of the rotation valve body,
Pulse generated when the brush passes between commutator pieces
Is detected and the cumulative number of motor
Flow in a refrigeration cycle device configured to control the number of turns
In the operation mechanism of the body flow control valve or the fluid flow switching valve,
Install a permanent magnet on the drive shaft of the brushed commutator motor.
A magnetic body is provided on the input shaft of the reduction gear, and the brush is
The rotation of the permanent magnet rotated by the commutator motor with
The magnetic force is transmitted to the magnetic body, and the rotation of the magnetic body is decelerated as described above.
Transmission to the gear and the above-mentioned sector-shaped rotary valve body
Fluid flow control valve in refrigeration cycle device characterized by the following
Alternatively, an operation mechanism of the fluid flow path switching valve .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21920199A JP3295889B2 (en) | 1999-08-02 | 1999-08-02 | Operating mechanism of fluid flow control valve or fluid flow switching valve in refrigeration cycle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21920199A JP3295889B2 (en) | 1999-08-02 | 1999-08-02 | Operating mechanism of fluid flow control valve or fluid flow switching valve in refrigeration cycle device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001045782A JP2001045782A (en) | 2001-02-16 |
| JP3295889B2 true JP3295889B2 (en) | 2002-06-24 |
Family
ID=16731801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21920199A Expired - Fee Related JP3295889B2 (en) | 1999-08-02 | 1999-08-02 | Operating mechanism of fluid flow control valve or fluid flow switching valve in refrigeration cycle device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3295889B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5606511B2 (en) * | 2011-11-25 | 2014-10-15 | 浙江三花股▲分▼有限公司 | Electric switching valve |
| CN103133717B (en) * | 2011-11-25 | 2015-08-26 | 浙江三花股份有限公司 | Dynamoelectric switching valve |
| CN108397589A (en) * | 2018-04-03 | 2018-08-14 | 安尼康（福建）环保设备有限公司 | A kind of rapidly opened and closed electrically operated valve |
| CN113983188B (en) * | 2021-10-25 | 2023-10-13 | 福建西河卫浴科技有限公司 | Valve |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5441126B2 (en) * | 1971-12-24 | 1979-12-06 | ||
| JPS5339326U (en) * | 1976-09-10 | 1978-04-06 | ||
| JPH0357571U (en) * | 1989-06-13 | 1991-06-03 | ||
| JPH0350620U (en) * | 1989-09-19 | 1991-05-16 | ||
| JPH05322062A (en) * | 1991-07-02 | 1993-12-07 | Tohoku Oki Denki Kk | Liquid-break device |
| JP2760267B2 (en) * | 1993-02-26 | 1998-05-28 | オムロン株式会社 | Motor drive |
| JPH06272782A (en) * | 1993-03-16 | 1994-09-27 | Taiheiyo Kogyo Kk | Electric-driven expansion valve |
| JP2782320B2 (en) * | 1993-11-09 | 1998-07-30 | オムロン株式会社 | Electric drive |
-
1999
- 1999-08-02 JP JP21920199A patent/JP3295889B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001045782A (en) | 2001-02-16 |
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