JP2001046917A - Centrifuge - Google Patents

Centrifuge

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Publication number
JP2001046917A
JP2001046917A JP11227194A JP22719499A JP2001046917A JP 2001046917 A JP2001046917 A JP 2001046917A JP 11227194 A JP11227194 A JP 11227194A JP 22719499 A JP22719499 A JP 22719499A JP 2001046917 A JP2001046917 A JP 2001046917A
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JP
Japan
Prior art keywords
rotor
motor
distinguished
distinguishing
centrifuge
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP11227194A
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Japanese (ja)
Other versions
JP3582414B2 (en
Inventor
Katsunori Akatsu
Shinji Watabe
Takayuki Watabiki
伸二 渡部
孝之 綿引
勝則 赤津
Original Assignee
Hitachi Koki Co Ltd
日立工機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Koki Co Ltd, 日立工機株式会社 filed Critical Hitachi Koki Co Ltd
Priority to JP22719499A priority Critical patent/JP3582414B2/en
Publication of JP2001046917A publication Critical patent/JP2001046917A/en
Application granted granted Critical
Publication of JP3582414B2 publication Critical patent/JP3582414B2/en
Application status is Expired - Fee Related legal-status Critical
Anticipated expiration legal-status Critical

Links

Abstract

PROBLEM TO BE SOLVED: To reduce the accelerating time of a motor by distinguishing a rotor at the time of accelerating the motor or the rotor and if the rotor is not distinguished, controlling to distinguish the rotor shaft stabilizing at an optional revolution speed to shorten the rotor distinguishing time. SOLUTION: After the motor is accelerated, a rotor distinguishing frequency counter is cleared to be zero. When the revolution speed of the motor is recognized to be <=50 min-1, the rotor is distinguished by a distinguishing means while accelerating the motor. When the rotor is judged to be already distinguished, the motor is accelerated up to a set revolution speed and stabilized. If the rotor is not distinguished, whether the rotor distinguishing frequency counter shows >=4 or not is judged and when showing <=4, the rotor distinguishing frequency counter is increased by one count and returned to the original. When the revolution speed reaches 50 min-1, the motor is stabilized at 50 min-1 and the rotor is distinguished. If the rotor is not distinguished even when the rotor distinguishing frequency counter shows 5, a centrifuge is stopped with the error indication.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、複数のロータを交換して使用する遠心機において、ロータの個々の種類を識別する遠心機のロータ識別装置に関するものである。 The present invention relates, in a centrifuge to be used to replace the plurality of rotors, the present invention relates to a rotor identification system for a centrifuge for identifying the particular type of rotor.

【0002】 [0002]

【従来の技術】従来の遠心機は、試料を入れて回転分離するためのロータと、ロータをセットするためのロータ室と、ロータを回転駆動するためのモータを有しており、目的に応じてロータを交換して使用している。 BACKGROUND OF THE INVENTION Conventional centrifuges, has a rotor for rotating separating Put sample, and the rotor chamber for setting a rotor, a motor for rotating the rotor, depending on the purpose It is used to replace the rotor Te. ロータは、遠心応力による破壊防止のためロータ毎に最高回転数が決められている。 Rotor, maximum rotation speed is determined for each rotor for preventing damage due to centrifugal stress. また、最高回転数が同じでもロータの形状、寸法が異なるロータが複数個ある。 The shape of the rotor maximum speed even identical, dimensions there are a plurality of different rotor. そこで、ロータ毎に最高回転数、慣性モーメント、ロータ内の試料の温度管理のためのロータ温度制御係数等の把握が遠心機側で必要になるため、ロータの種類を識別する装置が遠心機に付いている。 Therefore, the maximum speed for each rotor moment of inertia, since the grasp of such rotor temperature control coefficient for the temperature control of the sample in the rotor is required in the centrifuge side apparatus identifies the type of the rotor to the centrifuge attached. 従来の遠心機では、ロータ毎に設けた個有の識別子を遠心機本体にあるセンサで検出し、そのロータIDを判断している。 In conventional centrifuges, an identifier of the individual chromatic provided for each rotor detected by a sensor in the centrifuge body, it is determined that the rotor ID. このロータID The rotor ID
を検出するには、通常ロータを低速で回転させ行っている。 To detect is performed by rotating the normal rotor at a low speed. 近年、試料の分離時間短縮のため、加速時間、減速時間とも大幅に短縮させたいというとの要求が高まっており、せっかく、モータの加速トルクを高めても、ロータID検出に時間がかかるのでは、メリットがないという問題がある。 Recently, in order to shorten the separation time of the sample, acceleration time, there is an increasing demand of the rather want to shorten significantly with deceleration time, pains, also to enhance the acceleration torque of the motor, the time the rotor ID detection according to the , there is a problem that there is no merit. また、特開平6−198219号公報に記載のようにロータの軸心を中心に等角間隔上に磁石を配列し、磁石の有無を検知するセンサを上記等角間隔以下の間隔で複数配置したロータ識別装置は、ロータ停止中にロータを判別できるという機能はあるものの、多数のセンサが必要となりコスト高になってしまうと共に、 Further, by arranging the magnets on the equiangular intervals about the axis of the rotor, as described in JP-A-6-198219, a sensor for detecting the presence or absence of a magnet and a plurality arranged at intervals of less than the conformal spacing the rotor identification device, although features that can determine the rotor during rotor stop is, with a number of sensors becomes cost required,
多数のセンサを用いるため識別装置としての故障率が上昇し、信頼性が低下してしまっていた。 Failure rate as identification apparatus for using multiple sensors increases, the reliability had gotten lowered.

【0003】 [0003]

【発明が解決しようとする課題】上記したようにモータの加速時間を短かくし、試料の分離時間短縮が望まれている遠心機において、低速で整定させてロータ識別を行っていては、ロータ識別に時間を要しモータの加速時間が短縮できないという問題があった。 SUMMARY OF THE INVENTION It is an object of the hide acceleration time of the motor as described above short, the centrifuge separation time reduction of the sample is desired, have been rotor identification by settling at a low speed, the rotor identification there is a problem that can not be shortened acceleration time of the motor takes time to. 本発明の目的は、 An object of the present invention,
上記問題を解消し、ロータ識別時間を短くし、モータの加速時間を短縮した遠心機を提供することである。 To solve the above problem, by shortening the rotor identification time is to provide a centrifuge having a reduced acceleration time of the motor.

【0004】 [0004]

【課題を解決するための手段】上記目的は、モータ加速中にロータ識別を行い、万一任意の回転数までにロータ識別ができない時は、任意の回転数で整定させてロータ識別を行うことにより、毎回、任意の回転数で整定させる必要がなくなる。 The object SUMMARY OF THE INVENTION performs rotor identified during motor acceleration, when the event can not rotor identified until any rotational speed, to perform the rotor identification by settling in any rotational speed Accordingly, each time, there is no need to settle any speed. なお、任意の回転数は上述したように遠心機の最小設定回転数以下であることが望ましい。 It is desirable arbitrary rotational speed is less than or equal to the minimum speed setting of the centrifuge as described above.

【0005】 [0005]

【発明の実施の形態】本実施例における遠心機を図1を用いて説明する。 It will be described with reference to FIG. 1 the centrifuge in Detailed Description of the Invention The present embodiment. 図1は遠心機の動作を示すフローチャートである。 Figure 1 is a flow chart showing the operation of the centrifuge. 遠心機にロータをセットし、スタートスイッチを押すと、駆動源であるモータが回転を始める(ステップ1)。 Set the rotor in the centrifuge, when the start switch is pressed, a driving source motor starts rotating (Step 1). ロータ識別回数カウンタを0にクリアする(ステップ2)。 The rotor identification number counter is cleared to 0 (step 2). モータの回転数が50min -1に達したかどうかを判別する(ステップ3)。 Rotational speed of the motor to determine whether reached 50min -1 (Step 3). 50min -1以下の時はモータを加速させながら識別手段によりロータ識別処理を行う(ステップ4)。 50min -1 when below performs rotor identification processing by the identification means while accelerating the motor (Step 4). なお、本実施例では上記ロータの識別回転数、即ち識別回数カウンタを5段階に設定しており、50min -1まで加速整定された状態においてもカウントするよう制御している。 The identification number of revolutions of the rotor in this embodiment, that is, to set the identification number counter into five levels, are controlled to be counted in the state of being accelerated settling to 50min -1. ロータの識別ができたか判断する(ステップ5)。 It determines whether identification can be the rotor (Step 5). ロータの識別ができた時は設定回転数まで加速し整定させる(ステップ6)。 When identification can be of the rotor is settled accelerated to the set rotation speed (step 6).
なお、通常の場合は、ロータ識別回数カウンタが2の時に判別することができる。 In the case of the normal, it is possible to rotor identification number counter to determine when the 2. 仮に(ステップ5)でロータの識別ができない時は、ロータ識別回数カウンタが4以上かを比較する(ステップ7)。 If when can not be identified rotor (Step 5) compares whether the rotor identification number counter is 4 or more (step 7). ロータの識別回数カウンタが4以下の時はロータ識別回数カウンタを1カウントアップしステップ3にジャンプする(ステップ8)。 Rotor identification number counter of the time of 4 or less jumping rotor identification number counter counts up to Step 3 (Step 8).
モータの回転数が50min -1に達したか比較し(ステップ3)、50min -1以下の時は上記同様にモータを加速させながら再度ロータ識別処理を行うが、回転数が50 Compares rotational speed of the motor has reached the 50min -1 (Step 3), when the 50min -1 or less do again rotor identification process while accelerating the same manner as described above the motor, but the rotation speed is 50
min -1に達している時は50min -1で整定させ(ステップ9)、ロータ識別処理を行う。 When reached min -1 causes the settle 50min -1 (step 9), the rotor identification process. (ステップ4)以下、同様な処理を繰り返し、ロータ識別ができた時に設定回転数まで加速整定させる。 (Step 4) below, repeating the same processing, to accelerate settling to the set rotation speed when possible rotor identification. しかし、ロータ識別回数カウンタが5になってもロータの識別ができない時にはエラー表示をし遠心機を停止させる制御を行なう(ステップ1 However, when the rotor identification number counter can not be identified in the rotor even when the 5 carries out control for stopping the centrifuge and an error display (step 1
0)。 0).

【0006】本実施例では、ロータの識別ができない時に50min -1で整定させているが、最小の設定回転数以下で整定させればよく、50min -1である必要はない。 [0006] In this embodiment, although to settle 50min -1 when unable to identify the rotor, it is sufficient to settle the minimum set rotation speed or less, need not be 50min -1.
また、ロータ識別回数カウンタも同様に外乱(ノイズ) The rotor identification number counter is also similar disturbance (noise)
やロータの振動等によりロータの誤識別を防止できる回数であれば良い。 The or vibration of the rotor may be any number capable of preventing misidentification of the rotor. また、ステップ10でエラー表示した時にロータの形式またはロータに割り付けられた番号を操作パネルから入力できるようにし、遠心機の運転ができるようにすることで使い勝手の向上が図れる。 Also, to be able to enter a number assigned to the rotor of the form or the rotor from the operation panel when the display error in step 10, usability of can be achieved by allowing the operation of the centrifuge.

【0007】 [0007]

【発明の効果】本発明によれば、モータ加速中にロータの識別を行うため加速時間を短縮することができる。 According to the present invention, it is possible to shorten the acceleration time for identification of the rotor during motor acceleration. また、ロータ識別ができるまでは、遠心機の最小設定回転数以下で回転しているため、遠心機の信頼性、安全性を向上させることができる。 Moreover, until the rotor identification, since rotating at less than the minimum set rotation speed of the centrifuge, it is possible to improve reliability of the centrifuge, the safety.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】 本発明になる遠心機の一実施例を示すフローチャートである。 1 is a flowchart showing one embodiment of a centrifuge according to the present invention.

【符号の説明】 1はステップ1、2はステップ2、3はステップ3、4 [Description of Reference Numerals] 1 Step 2 Step 2 Step 3 and 4
はステップ4、5はステップ5、6はステップ6、7はステップ7、8はステップ8、9はステップ9、10はステップ10である。 Step 4 and 5 step 5,6 step 6,7 step 7,8 step 8,9 step 9 is a step 10.

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 駆動源であるモータによって回転される複数種のロータを判別する識別手段を備えた遠心機において、前記モータ或いは前記ロータの加速時に前記ロータの識別を行うと共に、前記ロータを識別できなかった場合には任意の回転数で整定させてから前記ロータの識別を行うよう制御することを特徴とした遠心機。 1. A centrifuge comprising an identification means for discriminating a plurality of types of rotors are rotated by a motor which is a drive source, performs identification of the rotor during acceleration of the motor or the rotor, identifying said rotor centrifuge was characterized by controlling so as to perform identification of the rotor were allowed to settle at any speed if you could not.
JP22719499A 1999-08-11 1999-08-11 Centrifuge Expired - Fee Related JP3582414B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22719499A JP3582414B2 (en) 1999-08-11 1999-08-11 Centrifuge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22719499A JP3582414B2 (en) 1999-08-11 1999-08-11 Centrifuge

Publications (2)

Publication Number Publication Date
JP2001046917A true JP2001046917A (en) 2001-02-20
JP3582414B2 JP3582414B2 (en) 2004-10-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP22719499A Expired - Fee Related JP3582414B2 (en) 1999-08-11 1999-08-11 Centrifuge

Country Status (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6589151B2 (en) * 2001-04-27 2003-07-08 Hitachi Koki Co., Ltd. Centrifugal separator capable of reading a rotor identification signal under different rotor rotation conditions
US6616588B2 (en) 2001-05-21 2003-09-09 Hitachi Koki Co., Ltd. Centrifugal separator with rotor identification
JP2012152718A (en) * 2011-01-28 2012-08-16 Hitachi Koki Co Ltd Centrifugal separator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6589151B2 (en) * 2001-04-27 2003-07-08 Hitachi Koki Co., Ltd. Centrifugal separator capable of reading a rotor identification signal under different rotor rotation conditions
US6616588B2 (en) 2001-05-21 2003-09-09 Hitachi Koki Co., Ltd. Centrifugal separator with rotor identification
JP2012152718A (en) * 2011-01-28 2012-08-16 Hitachi Koki Co Ltd Centrifugal separator

Also Published As

Publication number Publication date
JP3582414B2 (en) 2004-10-27

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