JP2004092633A - Output control device of linear compressor and output controlling method therefor - Google Patents

Output control device of linear compressor and output controlling method therefor Download PDF

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Publication number
JP2004092633A
JP2004092633A JP2003007572A JP2003007572A JP2004092633A JP 2004092633 A JP2004092633 A JP 2004092633A JP 2003007572 A JP2003007572 A JP 2003007572A JP 2003007572 A JP2003007572 A JP 2003007572A JP 2004092633 A JP2004092633 A JP 2004092633A
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Prior art keywords
coil
linear compressor
control unit
control device
output control
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JP2003007572A
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Japanese (ja)
Inventor
Keiton Kin
金　敬敦
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/032—Reciprocating, oscillating or vibrating motors
    • H02P25/034—Voice coil motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2203/00—Motor parameters
    • F04B2203/04—Motor parameters of linear electric motors
    • F04B2203/0401—Current
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2203/00—Motor parameters
    • F04B2203/04—Motor parameters of linear electric motors
    • F04B2203/0402—Voltage

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an output control device of a linear compressor capable of increasing the efficiency of a power supply without substantial degradation of the power factor of the power supply applied on a coil, and minimizing the occurrence of copper loss and core loss and an output controlling method therefor. <P>SOLUTION: The output control device of a linear compressor having a stator and a driver includes a plurality of winding taps connected to the coil of the stator, a switching that is selectively connected to the plurality of winding taps and controls the strength of current applied to the coil, and a control for controlling the switching in such a manner that the switching may be selectively connected to the plurality of winding taps depending on the predetermined temperature information. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、リニア圧縮機の出力制御装置及びその制御方法に係り、より詳細には、コイルに印加される電流の強さを制御することにより、出力を変化させるリニア圧縮機の出力制御装置及びその制御方法に関する。
【０００２】
【従来の技術】
一般にリニア圧縮機は、固定子と駆動子とを備える。固定子にはコイルが巻かれており、駆動子の外側に設けられる。駆動子は、磁石が結合されて、固定子の内側に配置される。このような構成により、固定子のコイルには、リニア圧縮機の外部に設けられた電源供給部から供給される交流電流が流れ、これにより駆動子の磁石に推力が発生して、駆動子が固定子の内側で直線往復運動をするようになる。
【０００３】
従来のリニア圧縮機の出力制御装置は、図１に示すように、電源供給部３０とリニア圧縮機との間に設けられるトライアック２０と、トライアック２０の作動を制御する制御部４０とを有する。トライアック２０は、制御部４０からの駆動信号によりオン／オフされて、リニア圧縮機のコイル１０に印加される電圧の位相を制御することにより、リニア圧縮機の出力を調節する。
【０００４】
ここで、リニア圧縮機が冷蔵庫の冷却システムに適用されることを例えて従来のリニア圧縮機の出力制御装置の出力制御過程を説明すると次の通りである。
まず、冷蔵庫が過負荷状態である場合、例えば、冷蔵庫が最初に作動される場合や冷蔵庫の庫内に高温の負荷が入る場合、冷蔵庫の庫内に設けられた温度センサ（図示せず）により検出された庫内の温度は、予め設定された基準温度より高く測定される。検出された庫内の温度が基準温度より高い場合、制御部４０は、図２の（ｂ）に示すように、波形の駆動信号をトライアック２０に伝達する。この時、トライアック２０は制御部４０の駆動信号により、電源供給部３０からの交流電圧が図２の（ａ）に示すように波形を有する交流電圧に位相がカッティングされるようにオン／オフされて、リニア圧縮機の出力を高める。
【０００５】
一方、冷蔵庫が適正な負荷状態である場合、温度センサにより検出された庫内の温度は、所定の目標温度の範囲の内で検出される。この場合、制御部４０は、図２の（ｄ）に示すように、波形の駆動信号をトライアック２０に伝達する。この時、トライアック２０は、制御部４０の駆動信号により図２の（ｃ）に示すように波形を有する交流電圧がコイル１０に伝達されるようにオン／オフされて、リニア圧縮機の出力を低める。
【０００６】
ところが、このような従来のリニア圧縮機の出力制御装置においては、適正負荷の状態で、制御部４０の駆動信号によりトライアック２０でカッティングされる電圧の位相が大きくなって、電源の力率が顕著に低まって、電源の効率も低下する問題がある。
また、同一の出力に対して力率が低まると、多くの電流が印加されてコイル１０で発生する銅損及び鉄損が大きくなる問題がある。
【０００７】
【発明が解決しようとする課題】
本発明の目的は、前述した問題点を解決するため、コイルに印加される電源の力率が低下されず、電源の効率を高め、銅損及び鉄損の発生を最小化することができるリニア圧縮機の出力制御装置及びその制御方法を提供することである。
【０００８】
【課題を解決するための手段】
上記課題を解決するため、本発明の主たる観点によれば、固定子と駆動子とを有するリニア圧縮機の出力制御装置において、前記固定子のコイルに接続される複数の巻線タップと、前記複数の巻線タップに選択的に接続されて前記コイルに印加される電流の強さを制御するスイッチング部と、所定の温度情報により前記スイッチング部が前記複数の巻線タップに選択的に接続されるように前記スイッチング部を制御する制御部とを含むことを特徴とするリニア圧縮機の出力制御装置が提供される。
【０００９】
前記制御部から伝達される駆動信号により前記コイルに印加される電源の位相を変化させる位相制御部をさらに含むことが好ましい。
ここで、前記位相制御部は、前記コイルに印加される電源を断続するトライアックであることが好ましい。また、前記位相制御部は、スイッチング部と前記コイルに電源を印加する電源供給部との間に直列に設けられることが好ましい。
【００１０】
上記課題を解決するため、本発明の他の観点によれば、コイルが巻かれた固定子と永久磁石が結合された駆動子とを有するリニア圧縮機の出力制御方法において、所定の温度情報を検出する段階と、前記検出された温度情報にしたがって前記コイルに印加される電流の強さを増減させる段階と、前記検出された温度情報にしたがって前記コイルに印加される電源の位相を制御する段階とを含むことを特徴とするリニア圧縮機の出力制御方法が提供される。
【００１１】
ここで、所定の基準温度を設定する段階をさらに含み、前記電流の強さを制御する段階は、前記検出された温度情報が前記基準温度より大きい場合前記コイルに印加される電流を増加させ、前記検出された温度情報が前記基準温度より小さい場合、前記コイルに印加される電流を減少させることが好ましい。
また、前記電源の位相を制御する段階は、前記検出された温度情報と前記基準温度との間の偏差により制御されることが好ましい。
【００１２】
【発明の実施の形態】
以下、添付した図面を参照して、本発明に対して詳細に説明する。また、本発明の説明において、本発明によるリニア圧縮機の出力制御装置が冷蔵庫に適用される場合を例にして、その制御過程を説明する。また、実施形態が異なっても、同一構成要素については同一の参照符号を付し、その内容に対する重複説明は省略する。
リニア圧縮機は固定子と駆動子とを有する。固定子には、コイルが巻かれており、駆動子の外側に設けられる。駆動子は磁石が結合されて、固定子の内側に配置される。このような構成により、固定子のコイルと駆動子の磁石との間の電磁気力により駆動子が直線往部運動する。
【００１３】
本発明によるリニア圧縮機の出力制御装置は、図３に示すように、コイル１に接続される一対の巻線タップ５ａ、５ｂと、一対の巻線タップ５ａ、５ｂに選択的に接続されてコイル１に印加される電流の強さを制御するスイッチング部６と、スイッチング部６が一対の巻線タップ５ａ、５ｂに選択的に接続されるように制御する制御部４とを含む。
【００１４】
各巻線タップ５ａ、５ｂは、コイル１の他の位置にそれぞれ接続されて、スイッチング部６が各巻線タップ５ａ、５ｂに選択的に接続する場合、電流が流れるコイル１の長さが変化してコイル１が有する抵抗値を変化させる。このような抵抗値の変化により、電源供給部３から印加される同一の電圧に対してコイル１に流れる電流の強さが変化する。
【００１５】
スイッチング部６は、制御部４からの駆動信号により巻線タップ５ａ、５ｂに選択的に接続される。ここで、スイッチング部６の構造は、必要に応じて適切に補正することができる。
制御部４は、冷蔵庫の温度センサ（図示せず）から検出された庫内の温度と予め設定された基準温度とを比較して、適切な駆動信号を生成する。制御部４により生成された駆動信号は、スイッチング部６に伝達され、スイッチング部６は伝達された駆動信号により巻線タップ５ａ、５ｂに選択的に接続される。
【００１６】
前記のような構成により、本発明によるリニア圧縮機の出力が制御される過程は次の通りである。
まず、冷蔵庫に過負荷がかかる場合、例えば、冷蔵庫を最初に稼動したり、庫内に高温の負荷が入る場合、冷蔵庫の庫内に設けられた温度センサにより検出された庫内の温度は予め設定された基準温度より高く測定される。検出された庫内の温度が既存の温度より高い場合、制御部４はスイッチング部６がコイルの抵抗値の小さくなる第１巻線タップ５ａに接続できるように駆動信号をスイッチング部６に伝達する。これにより、コイル１に流れる電流の強さが増加して、リニア圧縮機の出力が増加されるようになる。
【００１７】
しかし、冷蔵庫が適正負荷である場合、温度センサにより検出された庫内の温度は、所定の目標温度範囲の内で検出される。検出された庫内の温度が目標温度範囲内である場合、制御部４は、スイッチング部６がコイル１の抵抗値の大きくなる第２巻線タップ５ｂに接続できるように駆動信号をスイッチング部６に伝達する。これにより、コイル１に流れる電流の強さが減少してリニア圧縮機の出力が減少するようになる。
【００１８】
また、本発明によるリニア圧縮機の出力制御装置は、図４に示すように、コイル１に印加される電源の位相を変化させる位相制御部２をさらに含むことができる。ここで、位相制御部は、スイッチング部と前記コイルに電源を印加する電源供給部との間に直列に設けられる。
位相制御部２は、制御部４からの駆動信号によりオン／オフされてリニア圧縮機のコイル１に印加される電圧の位相を制御する。ここで、位相制御部２は安くて、構成が簡単なトライアックを使用することが好ましく、位相制御が可能な他の回路構成を採用することもできる。
【００１９】
制御部４は、冷蔵庫の温度センサにより検出された庫内の温度と基準温度とを比較して、コイル１に印加される電圧の位相を決定し、その決定した電圧を得るための駆動信号を生成するようになる。
ここで、リニア圧縮機の出力を制御することにより、出力の大きい増減は前述のスイッチング部６により行われ、スイッチング部６により制御されたリニア圧縮機の出力状態で、さらに精密な出力の制御が要求される場合、位相制御部２による出力制御が行われる。例えば、冷蔵庫が適正負荷状態である場合に、スイッチング部６は、第２巻線タップ５ｂに接続されて、抵抗を増加させることにより、リニア圧縮機の出力を減少させる。次に、スイッチング部６により減少されたリニア圧縮機の出力状態で、制御部４は図５の（ｂ）に示すように、波形の駆動信号を位相制御部２に伝達し、位相制御部２はコイル１に印加される電圧が図５の（ａ）に示すように波形を有するように、電圧の位相を制御する。これにより、冷蔵庫の適正負荷でもコイル１に印加される電圧の位相を小さくカッティングしてリニア圧縮機の出力を制御することができるようになる。ここで、制御部４は、温度センサにより検出された庫内の温度と基準温度との偏差により適合な位相差を有する電圧を生成することができる駆動信号を位相制御部４に伝達することができるようになる。
【００２０】
前述した実施形態では、本発明によるリニア圧縮機の出力制御装置が冷蔵庫に使用されることを例にとったが、これに限らず、例えばエアコンなどリニア圧縮機が使用される機器に適用することもできる。
また、前述の実施形態では、スイッチング部が二つの巻線タップ５ａ、５ｂに選択的に接続するように設けられているが、三つ以上の巻線タップにより制御されるリニア圧縮機の出力制御装置を設けることもできる。
【００２１】
このように、コイル１の抵抗値を変化させて、リニア圧縮機の出力を制御することにより、力率の低下を最小化し、電源の効率を向上させることができる。また、同一の出力に対してコイルに印加される電流の量を減少させることにより、コイル１の銅損及び鉄損を最小化することができるようになる。
【００２２】
【発明の効果】
前述したように、本発明によると、コイルに印加される電源の力率を低下させず、電源の効率を高め、銅損及び鉄損の発生を最小化することができるリニア圧縮機の出力制御装置及びその制御方法を提供する。
【図面の簡単な説明】
【図１】従来のリニア圧縮機の出力制御装置の概略的な構成を示す図である。
【図２】図２は従来のリニア圧縮機の出力制御装置の制御部の駆動信号の波形及びコイルに印加される電圧の波形を示す図である。
【図３】本発明によるリニア圧縮機の出力制御装置の概略的な構成を示す図である。
【図４】図３のリニア圧縮機の出力制御装置に位相制御部が追加された状態を示す図である。
【図５】本発明による位相制御部に印加される制御部の駆動信号及び位相制御部を通過した電圧の波形を示す図である。
【符号の説明】
１…コイル
２…位相制御部
３…電源供給部
４…制御部
５ａ…第１巻線タップ
５ｂ…第２巻線タップ
６…スイッチング部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an output control device of a linear compressor and a control method thereof, and more particularly, to an output control device of a linear compressor that changes the output by controlling the intensity of a current applied to a coil, and It relates to the control method.
[0002]
[Prior art]
Generally, a linear compressor includes a stator and a driver. A coil is wound around the stator and is provided outside the driver. The driver is located inside the stator with the magnets coupled. With such a configuration, an alternating current supplied from a power supply unit provided outside the linear compressor flows through the coils of the stator, thereby generating thrust on the magnets of the driver and causing the driver to rotate. A linear reciprocating motion starts inside the stator.
[0003]
As shown in FIG. 1, the conventional output control device for a linear compressor includes a triac 20 provided between a power supply unit 30 and the linear compressor, and a control unit 40 for controlling the operation of the triac 20. The triac 20 is turned on / off by a drive signal from the control unit 40, and controls the phase of the voltage applied to the coil 10 of the linear compressor, thereby adjusting the output of the linear compressor.
[0004]
Here, an output control process of a conventional output control device of a linear compressor will be described as an example in which the linear compressor is applied to a refrigerator cooling system.
First, when the refrigerator is in an overload state, for example, when the refrigerator is operated first or when a high-temperature load enters the refrigerator, a temperature sensor (not shown) provided in the refrigerator is used. The detected temperature in the refrigerator is measured higher than a preset reference temperature. If the detected internal temperature is higher than the reference temperature, the control unit 40 transmits a waveform drive signal to the triac 20, as shown in FIG. At this time, the triac 20 is turned on / off by the drive signal of the control unit 40 such that the phase of the AC voltage from the power supply unit 30 is cut into an AC voltage having a waveform as shown in FIG. To increase the output of the linear compressor.
[0005]
On the other hand, when the refrigerator is in an appropriate load state, the temperature inside the refrigerator detected by the temperature sensor is detected within a predetermined target temperature range. In this case, the control unit 40 transmits a drive signal having a waveform to the triac 20, as shown in FIG. At this time, the triac 20 is turned on / off by a drive signal of the control unit 40 so that an AC voltage having a waveform is transmitted to the coil 10 as shown in FIG. Lower.
[0006]
However, in such a conventional output control device for a linear compressor, the phase of the voltage cut by the triac 20 by the drive signal of the control unit 40 becomes large under an appropriate load, and the power factor of the power supply is remarkable. And the efficiency of the power supply also decreases.
Further, when the power factor is reduced for the same output, a large amount of current is applied, and there is a problem that copper loss and iron loss generated in the coil 10 increase.
[0007]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems by reducing the power factor of a power supply applied to a coil, increasing the efficiency of the power supply, and minimizing the occurrence of copper loss and iron loss. An object of the present invention is to provide a compressor output control device and a control method thereof.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, according to a main aspect of the present invention, in an output control device of a linear compressor having a stator and a driver, a plurality of winding taps connected to a coil of the stator, A switching unit selectively connected to a plurality of winding taps to control the intensity of a current applied to the coil; and the switching unit is selectively connected to the plurality of winding taps according to predetermined temperature information. And a control unit for controlling the switching unit as described above.
[0009]
It is preferable that the apparatus further includes a phase control unit that changes a phase of a power supply applied to the coil according to a drive signal transmitted from the control unit.
Here, it is preferable that the phase control unit is a triac that interrupts power supply applied to the coil. Preferably, the phase control unit is provided in series between a switching unit and a power supply unit that applies power to the coil.
[0010]
According to another aspect of the present invention, there is provided an output control method for a linear compressor having a stator in which a coil is wound and a driver in which a permanent magnet is coupled. Detecting, increasing or decreasing the intensity of a current applied to the coil according to the detected temperature information, and controlling a phase of a power supply applied to the coil according to the detected temperature information. And a method for controlling the output of the linear compressor.
[0011]
Here, the method may further include setting a predetermined reference temperature, and controlling the intensity of the current may include increasing a current applied to the coil when the detected temperature information is higher than the reference temperature. When the detected temperature information is lower than the reference temperature, it is preferable to reduce a current applied to the coil.
Preferably, the step of controlling the phase of the power supply is controlled by a deviation between the detected temperature information and the reference temperature.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. In the description of the present invention, a control process of the output control device of the linear compressor according to the present invention will be described by taking as an example a case where the output control device is applied to a refrigerator. Further, even in different embodiments, the same components are denoted by the same reference numerals, and the description thereof will not be repeated.
The linear compressor has a stator and a driver. A coil is wound around the stator and is provided outside the driver. The driver is located inside the stator with the magnets coupled. With such a configuration, the driver moves linearly forward due to the electromagnetic force between the stator coil and the driver magnet.
[0013]
The output control device of the linear compressor according to the present invention is, as shown in FIG. 3, a pair of winding taps 5a and 5b connected to the coil 1 and selectively connected to the pair of winding taps 5a and 5b. The switching unit 6 includes a switching unit 6 for controlling the intensity of the current applied to the coil 1 and a control unit 4 for controlling the switching unit 6 to be selectively connected to the pair of winding taps 5a and 5b.
[0014]
Each of the winding taps 5a and 5b is connected to another position of the coil 1, and when the switching unit 6 is selectively connected to each of the winding taps 5a and 5b, the length of the coil 1 through which current flows changes. The resistance value of the coil 1 is changed. Due to such a change in the resistance value, the intensity of the current flowing through the coil 1 changes with respect to the same voltage applied from the power supply unit 3.
[0015]
The switching unit 6 is selectively connected to the winding taps 5a and 5b by a drive signal from the control unit 4. Here, the structure of the switching unit 6 can be appropriately corrected as needed.
The control unit 4 compares the temperature in the refrigerator detected from the temperature sensor (not shown) of the refrigerator with a preset reference temperature to generate an appropriate drive signal. The drive signal generated by the control unit 4 is transmitted to the switching unit 6, and the switching unit 6 is selectively connected to the winding taps 5a and 5b by the transmitted drive signal.
[0016]
The process of controlling the output of the linear compressor according to the present invention with the above configuration is as follows.
First, when an overload is applied to the refrigerator, for example, when the refrigerator is first operated or a high-temperature load enters the refrigerator, the temperature in the refrigerator detected by the temperature sensor provided in the refrigerator is determined in advance. It is measured higher than the set reference temperature. If the detected internal temperature is higher than the existing temperature, the control unit 4 transmits a driving signal to the switching unit 6 so that the switching unit 6 can be connected to the first winding tap 5a having a smaller resistance value of the coil. . As a result, the intensity of the current flowing through the coil 1 increases, and the output of the linear compressor increases.
[0017]
However, when the refrigerator has an appropriate load, the temperature in the refrigerator detected by the temperature sensor is detected within a predetermined target temperature range. When the detected internal temperature is within the target temperature range, the control unit 4 transmits a drive signal to the switching unit 6 so that the switching unit 6 can be connected to the second winding tap 5b where the resistance value of the coil 1 increases. To communicate. As a result, the intensity of the current flowing through the coil 1 decreases, and the output of the linear compressor decreases.
[0018]
Further, as shown in FIG. 4, the output control device of the linear compressor according to the present invention may further include a phase control unit 2 that changes a phase of a power supply applied to the coil 1. Here, the phase control unit is provided in series between the switching unit and a power supply unit that applies power to the coil.
The phase control unit 2 controls the phase of the voltage that is turned on / off by the drive signal from the control unit 4 and applied to the coil 1 of the linear compressor. Here, it is preferable to use a triac, which is inexpensive and has a simple configuration, for the phase control unit 2, and it is also possible to adopt another circuit configuration capable of performing phase control.
[0019]
The control unit 4 compares the temperature in the refrigerator detected by the temperature sensor of the refrigerator with the reference temperature, determines the phase of the voltage applied to the coil 1, and outputs a drive signal for obtaining the determined voltage. Will be generated.
Here, by controlling the output of the linear compressor, a large increase or decrease in the output is performed by the switching unit 6 described above. In the output state of the linear compressor controlled by the switching unit 6, more precise output control is performed. If required, output control by the phase control unit 2 is performed. For example, when the refrigerator is in a proper load state, the switching unit 6 is connected to the second winding tap 5b and increases the resistance to reduce the output of the linear compressor. Next, in the output state of the linear compressor reduced by the switching unit 6, the control unit 4 transmits the waveform drive signal to the phase control unit 2 as shown in FIG. Controls the phase of the voltage so that the voltage applied to the coil 1 has a waveform as shown in FIG. This makes it possible to control the output of the linear compressor by cutting the phase of the voltage applied to the coil 1 to a small value even with an appropriate load of the refrigerator. Here, the control unit 4 can transmit to the phase control unit 4 a drive signal capable of generating a voltage having an appropriate phase difference due to a deviation between the temperature inside the refrigerator detected by the temperature sensor and the reference temperature. become able to.
[0020]
In the embodiment described above, the output control device of the linear compressor according to the present invention is used in a refrigerator as an example. However, the present invention is not limited to this. You can also.
In the above-described embodiment, the switching unit is provided so as to be selectively connected to the two winding taps 5a and 5b. However, the output control of the linear compressor controlled by three or more winding taps is provided. A device can also be provided.
[0021]
As described above, by controlling the output of the linear compressor by changing the resistance value of the coil 1, it is possible to minimize the decrease in the power factor and improve the efficiency of the power supply. Also, by reducing the amount of current applied to the coil for the same output, copper loss and iron loss of the coil 1 can be minimized.
[0022]
【The invention's effect】
As described above, according to the present invention, the output control of the linear compressor that can increase the efficiency of the power supply and minimize the occurrence of copper loss and iron loss without reducing the power factor of the power supply applied to the coil. An apparatus and a control method thereof are provided.
[Brief description of the drawings]
FIG. 1 is a diagram showing a schematic configuration of a conventional output control device of a linear compressor.
FIG. 2 is a diagram showing a waveform of a drive signal of a control unit of an output control device of a conventional linear compressor and a waveform of a voltage applied to a coil.
FIG. 3 is a diagram showing a schematic configuration of an output control device of a linear compressor according to the present invention.
FIG. 4 is a diagram illustrating a state where a phase control unit is added to the output control device of the linear compressor in FIG. 3;
FIG. 5 is a diagram illustrating a drive signal of a control unit applied to the phase control unit according to the present invention and a waveform of a voltage passing through the phase control unit.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 coil 2 phase control unit 3 power supply unit 4 control unit 5a first winding tap 5b second winding tap 6 switching unit

Claims (7)

固定子と駆動子とを有するリニア圧縮機の出力制御装置において、
前記固定子のコイルに接続される複数の巻線タップと、
前記複数の巻線タップに選択的に接続されて前記コイルに印加される電流の強さを制御するスイッチング部と、
所定の温度情報により前記スイッチング部が前記複数の巻線タップに選択的に接続されるように前記スイッチング部を制御する制御部と
を含むことを特徴とするリニア圧縮機の出力制御装置。In an output control device of a linear compressor having a stator and a driver,
A plurality of winding taps connected to the coils of the stator;
A switching unit selectively connected to the plurality of winding taps and controlling the intensity of a current applied to the coil;
A control unit for controlling the switching unit such that the switching unit is selectively connected to the plurality of winding taps based on predetermined temperature information. 前記制御部から伝達される駆動信号により前記コイルに印加される電源の位相を変化させる位相制御部をさらに含むことを特徴とする請求項１に記載のリニア圧縮機の出力制御装置。The output control device of a linear compressor according to claim 1, further comprising a phase control unit that changes a phase of a power supply applied to the coil according to a drive signal transmitted from the control unit. 前記位相制御部は、前記コイルに印加される電源を断続するトライアックであることを特徴とする請求項２に記載の圧縮機の出力制御装置。The output control device for a compressor according to claim 2, wherein the phase control unit is a triac that interrupts power supplied to the coil. 前記位相制御部は、スイッチング部と前記コイルに電源を印加する電源供給部との間に直列に設けられることを特徴とする請求項２に記載のリニア圧縮機の出力制御装置。The output control device of a linear compressor according to claim 2, wherein the phase control unit is provided in series between a switching unit and a power supply unit that applies power to the coil. コイルが巻かれた固定子と永久磁石が結合された駆動子とを有するリニア圧縮機の出力制御方法において、
所定の温度情報を検出する段階と、
前記検出された温度情報にしたがって前記コイルに印加される電流の強さを増減させる段階と、
前記検出された温度情報にしたがって前記コイルに印加される電源の位相を制御する段階と
を含むことを特徴とするリニア圧縮機の出力制御方法。In an output control method of a linear compressor having a stator in which a coil is wound and a driver in which a permanent magnet is coupled,
Detecting predetermined temperature information;
Increasing or decreasing the intensity of the current applied to the coil according to the detected temperature information;
Controlling the phase of the power applied to the coil according to the detected temperature information. 所定の基準温度を設定する段階をさらに含み、
前記電流の強さを制御する段階は、前記検出された温度情報が前記基準温度より大きい場合前記コイルに印加される電流を増加させ、前記検出された温度情報が前記基準温度より小さい場合、前記コイルに印加される電流を減少させることを特徴とする請求項５に記載のリニア圧縮機の出力制御方法。Further comprising the step of setting a predetermined reference temperature,
The step of controlling the intensity of the current increases the current applied to the coil when the detected temperature information is higher than the reference temperature, and when the detected temperature information is lower than the reference temperature, The method according to claim 5, wherein the current applied to the coil is reduced. 前記電源の位相を制御する段階は、前記検出された温度情報と前記基準温度との間の偏差により制御されることを特徴とする請求項６に記載のリニア圧縮機の出力制御方法。7. The method according to claim 6, wherein the step of controlling the phase of the power supply is controlled by a deviation between the detected temperature information and the reference temperature.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005351262A (en) * 2004-06-11 2005-12-22 Lg Electronics Inc Device and method for controlling operation of reciprocating compressor
JP2008511792A (en) * 2004-08-30 2008-04-17 エルジー エレクトロニクス インコーポレイティド Linear compressor
JP2010048150A (en) * 2008-08-21 2010-03-04 Fuji Electric Systems Co Ltd Vibration compressor

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7032400B2 (en) * 2004-03-29 2006-04-25 Hussmann Corporation Refrigeration unit having a linear compressor
US7412842B2 (en) 2004-04-27 2008-08-19 Emerson Climate Technologies, Inc. Compressor diagnostic and protection system
US7275377B2 (en) 2004-08-11 2007-10-02 Lawrence Kates Method and apparatus for monitoring refrigerant-cycle systems
KR100608686B1 (en) * 2004-08-25 2006-08-08 엘지전자 주식회사 Capacity variableness type reciprocating compressor and his control method
KR100619766B1 (en) * 2005-01-07 2006-09-11 엘지전자 주식회사 Driving control apparatus amd method for capacity variableness type reciprocating compressor
US8590325B2 (en) 2006-07-19 2013-11-26 Emerson Climate Technologies, Inc. Protection and diagnostic module for a refrigeration system
KR100801359B1 (en) * 2006-08-04 2008-02-05 엘지전자 주식회사 Controlling apparatus and its method for linear compressor
US20080216494A1 (en) 2006-09-07 2008-09-11 Pham Hung M Compressor data module
US20090037142A1 (en) 2007-07-30 2009-02-05 Lawrence Kates Portable method and apparatus for monitoring refrigerant-cycle systems
US8393169B2 (en) 2007-09-19 2013-03-12 Emerson Climate Technologies, Inc. Refrigeration monitoring system and method
US9140728B2 (en) 2007-11-02 2015-09-22 Emerson Climate Technologies, Inc. Compressor sensor module
US8160827B2 (en) * 2007-11-02 2012-04-17 Emerson Climate Technologies, Inc. Compressor sensor module
KR100982733B1 (en) * 2008-01-07 2010-09-16 현대로템 주식회사 Method for providing current of electromagnet coil with variable resistance
WO2012118830A2 (en) 2011-02-28 2012-09-07 Arensmeier Jeffrey N Residential solutions hvac monitoring and diagnosis
US8964338B2 (en) 2012-01-11 2015-02-24 Emerson Climate Technologies, Inc. System and method for compressor motor protection
US9480177B2 (en) 2012-07-27 2016-10-25 Emerson Climate Technologies, Inc. Compressor protection module
US9310439B2 (en) 2012-09-25 2016-04-12 Emerson Climate Technologies, Inc. Compressor having a control and diagnostic module
US9551504B2 (en) 2013-03-15 2017-01-24 Emerson Electric Co. HVAC system remote monitoring and diagnosis
WO2014144446A1 (en) 2013-03-15 2014-09-18 Emerson Electric Co. Hvac system remote monitoring and diagnosis
US9803902B2 (en) 2013-03-15 2017-10-31 Emerson Climate Technologies, Inc. System for refrigerant charge verification using two condenser coil temperatures
AU2014248049B2 (en) 2013-04-05 2018-06-07 Emerson Climate Technologies, Inc. Heat-pump system with refrigerant charge diagnostics
CN104747425A (en) * 2015-03-05 2015-07-01 海信容声(广东)冰箱有限公司 Compressor, refrigerator and control method
CN106330051A (en) * 2015-06-19 2017-01-11 珠海格力电器股份有限公司 Linear motor control circuit and linear motor

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931554A (en) * 1974-08-13 1976-01-06 Spentzas Nikolaos E Reciprocating motor-compressor system
US4563624A (en) * 1982-02-11 1986-01-07 Copeland Corporation Variable speed refrigeration compressor
US6537034B2 (en) * 2000-11-29 2003-03-25 Lg Electronics Inc. Apparatus and method for controlling operation of linear compressor
KR100451224B1 (en) * 2002-01-14 2004-10-02 엘지전자 주식회사 Drive control method for reciprocating compressor
US6616416B1 (en) * 2002-02-19 2003-09-09 Bristol Compressors, Inc. Methods and system for motor optimization using capacitance and/or voltage adjustments
KR100474330B1 (en) * 2002-05-13 2005-03-08 엘지전자 주식회사 Driving comtrol apparatus of reciprocating compressor for refrigerator
WO2004033909A1 (en) * 2002-10-11 2004-04-22 Lg Electronics Inc. Overload protective apparatus of a compressor and a method thereof
KR100764795B1 (en) * 2002-12-20 2007-10-11 엘지전자 주식회사 Driving device and method of reciprocating compressor
KR100498390B1 (en) * 2002-12-20 2005-07-01 엘지전자 주식회사 Driving control apparatus and method of refrigerator in using reciprocating compressor
KR100608671B1 (en) * 2004-06-03 2006-08-08 엘지전자 주식회사 Driving control apparatus and method for line start type reciprocating compressor
KR100608673B1 (en) * 2004-06-11 2006-08-08 엘지전자 주식회사 Driving control apparatus and method for reciprocating compressor
KR100608686B1 (en) * 2004-08-25 2006-08-08 엘지전자 주식회사 Capacity variableness type reciprocating compressor and his control method
KR100619766B1 (en) * 2005-01-07 2006-09-11 엘지전자 주식회사 Driving control apparatus amd method for capacity variableness type reciprocating compressor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005351262A (en) * 2004-06-11 2005-12-22 Lg Electronics Inc Device and method for controlling operation of reciprocating compressor
JP2008511792A (en) * 2004-08-30 2008-04-17 エルジー エレクトロニクス インコーポレイティド Linear compressor
JP2010048150A (en) * 2008-08-21 2010-03-04 Fuji Electric Systems Co Ltd Vibration compressor

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