JP2004270698A - Inlet valve assembly of reciprocating compressor - Google Patents

Inlet valve assembly of reciprocating compressor Download PDF

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Publication number
JP2004270698A
JP2004270698A JP2004060730A JP2004060730A JP2004270698A JP 2004270698 A JP2004270698 A JP 2004270698A JP 2004060730 A JP2004060730 A JP 2004060730A JP 2004060730 A JP2004060730 A JP 2004060730A JP 2004270698 A JP2004270698 A JP 2004270698A
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valve
suction
suction valve
reciprocating compressor
piston
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JP4689964B2 (en
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Ki Won Noh
キ ウォン ノー
Hyon Soku Kim
ヒョン ソク キム
Don Han Kim
ドン ハン キム
Jin Sun Park
ジン スン パーク
Byung Jik Kim
ビュン ジク キム
Jae Mo Lee
ジェ モ リー
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LG Electronics Inc
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LG Electronics Inc
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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
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • 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
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/06—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
    • F04B15/08—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Check Valves (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide the inlet valve assembly of a reciprocating compressor which improves reliability of the compressor by enabling opening or closing movement of the inlet valve through rotation and linear reciprocating motion, and preventing excessive opening of the inlet valve and breakage of the inlet valve caused by fatigue. <P>SOLUTION: The inlet valve assembly 38 of the reciprocating compressor is provided with a valve support 60 which is engaged with a valve-attachment part 52 formed at a piston 30 and at which at least one inlet 54 is bored for supplying a fluid flowed into the inlet pathway 51 of the piston 30 to the compression chamber 32 of a cylinder 34, and the inlet valve 70 engaged with the valve support 60 so that it can rotate within a prescribed setting area for opening and closing the inlet 54 formed at the valve support 60. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

本発明は、往復動式圧縮機の吸入弁アセンブリに係るもので、詳しくは、吸入弁の疲労による破損を防止して圧縮機の信頼性を向上し得る往復動式圧縮機の吸入弁アセンブリに関するものである。   The present invention relates to a suction valve assembly of a reciprocating compressor, and more particularly, to a suction valve assembly of a reciprocating compressor capable of preventing damage due to fatigue of the suction valve and improving the reliability of the compressor. Things.

一般に、圧縮機は、流体を圧縮する方式によって、回転式圧縮機（rotary compressor）、往復動式圧縮機（reciprocating compressor)及びスクロール圧縮機（scroll compressor)などに区分される。   Generally, compressors are classified into a rotary compressor, a reciprocating compressor, a scroll compressor, and the like according to a method of compressing a fluid.

図５は、従来の往復動式圧縮機の構造を示した断面図で、図示されたように、従来の往復動式圧縮機は、吸入管１０２及び吐出管１０４が連結される密閉されたケース１０６と、該ケース１０６の内部に配置されて往復運動力を発生する往復動式モータ（reciprocating motor）１０８と、該往復動式モータ１０８の中心から発生する往復運動力の伝達を受けて流体を圧縮する圧縮ユニット（compressing unit）１１０と、前記往復動式モータ１０８及び圧縮ユニット１１０を支持するフレーム１３２，１３４，１３６と、を包含して構成されている。   FIG. 5 is a cross-sectional view showing the structure of a conventional reciprocating compressor. As shown, the conventional reciprocating compressor has a sealed case in which a suction pipe 102 and a discharge pipe 104 are connected. 106, a reciprocating motor 108 disposed inside the case 106 to generate a reciprocating force, and receiving the transmission of the reciprocating force generated from the center of the reciprocating motor 108, It comprises a compression unit 110 for compressing and frames 132, 134, 136 supporting the reciprocating motor 108 and the compression unit 110.

前記往復動式モータ１０８は、内部にコイル１２２が巻回された円筒状のアウターステータ１１８と、該アウターステータ１１８の内周面と所定エアギャップ（air gap）を有して配置されたインナーステータ１２０と、前記アウターステータ１１８とインナーステータ１２０間に所定間隔を有して配置され、前記コイル１２２に電源が印加されることで直線往復運動されるマグネット１２４と、から構成される。   The reciprocating motor 108 includes a cylindrical outer stator 118 in which a coil 122 is wound, and an inner stator disposed with an inner peripheral surface of the outer stator 118 and a predetermined air gap. And a magnet 124 disposed at a predetermined interval between the outer stator 118 and the inner stator 120 and reciprocating linearly when power is applied to the coil 122.

また、前記マグネット１２４は、マグネットホルダー１２６の外周面に等間隔に固定され、該マグネットホルダー１２６は、前記圧縮ユニット１１０のピストン１２８に連結されている。   In addition, the magnets 124 are fixed to the outer peripheral surface of a magnet holder 126 at equal intervals, and the magnet holder 126 is connected to a piston 128 of the compression unit 110.

前記マグネットホルダー１２６の両方側面と前記各フレーム１３２，１３６間には、第１共振バネ１３８及び第２共振バネ１４０がそれぞれ設置されることで、前記ピストン１２８の共振運動を誘導する。   A first resonance spring 138 and a second resonance spring 140 are provided between both sides of the magnet holder 126 and the frames 132 and 136, respectively, to induce a resonance movement of the piston 128.

また、前記圧縮ユニット１１０は、前記マグネットホルダー１２６に連結されて直線往復運動を行う前記ピストン１２８と、該ピストン１２８が摺動自在に挿入されて所定圧縮室１４２を形成し、前記第１フレーム１３２に固定されたシリンダ１４４と、前記ピストン１２８の前方に装着された吸入弁１４８と、前記シリンダ１４４の前方に装着されて、前記圧縮室１４２内部の圧力が設定圧以上になると該圧縮室１４２内部の流体を吐出管１０４を通して外部に排出させる吐出弁１５０と、から構成される。   The compression unit 110 is connected to the magnet holder 126 to perform a linear reciprocating motion, and the piston 128 is slidably inserted to form a predetermined compression chamber 142. , A suction valve 148 mounted in front of the piston 128, and a suction valve mounted in front of the cylinder 144 so that when the pressure inside the compression chamber 142 exceeds a set pressure, And a discharge valve 150 for discharging the fluid through the discharge pipe 104 to the outside.

また、前記ピストン１２８は、その中央に長手方向に流体が吸入される吸入通路（suction passage）１５２が切削形成され、前方に該吸入通路１５２に流入された流体を前記圧縮室（compression chamber）１４２に供給するための複数の吸入口（suction hall）１５４が穿孔形成され、前記ピストン１２８の前方面中央には、前記吸入弁１４８がボルト締結されるボルト締結溝１５８（図６参照）が切削形成されている。   In addition, the piston 128 has a suction passage 152 formed in the center of the piston 128, in which a fluid is sucked in a longitudinal direction, and the fluid that has flowed into the suction passage 152 forward is compressed by the compression chamber 142. A plurality of suction halls 154 for supplying the suction valve 148 are formed by drilling, and a bolt fastening groove 158 (see FIG. 6) into which the suction valve 148 is bolted is formed in the center of the front surface of the piston 128. Have been.

また、前記吸入弁１４８は、図６に示したように、その一方側が前記ピストン１２８の前方面にボルト１６０により螺合され、所定弾性力を有する円板状に形成される。   As shown in FIG. 6, one side of the suction valve 148 is screwed to the front surface of the piston 128 by a bolt 160 to form a disk having a predetermined elastic force.

即ち、前記吸入弁１４８は、その中央を前記ピストン１２８の前方面中央にボルト１６０により螺合するためのボルトホール１６２が穿孔形成された固定部１６４と、該固定部１６４を中心に曲線状に切開されて前記吸入口１５４を開閉させる開閉部１６６と、から構成される。   That is, the suction valve 148 has a fixed portion 164 formed with a bolt hole 162 for screwing the center thereof to the center of the front surface of the piston 128 with the bolt 160, and a curved shape centered on the fixed portion 164. And an opening / closing section 166 that is opened to open and close the suction port 154.

このように構成された従来の往復動式圧縮機の吸入弁においては、図７及び図８の吸入弁の動作状態を示した断面図に示したように、往復動式モータ１０８の駆動により、マグネット１２４が直線往復運動し、該マグネット１２４に連結されたピストン１２８が直線往復運動することで、流体を圧縮する。   In the suction valve of the conventional reciprocating compressor configured as described above, as shown in the cross-sectional views showing the operation state of the suction valve in FIGS. The magnet 124 linearly reciprocates, and the piston 128 connected to the magnet 124 linearly reciprocates, thereby compressing the fluid.

即ち、前記ピストン１２８が後退すると、図７に示したように、流体の圧力により、前記ピストン１２８の前方面から前記吸入弁１４８の開閉部１６６が弾性変形することで前記吸入口１５４が開放され、前記ピストン１２８の吸入通路１５２に流入された流体が圧縮室１４２に供給される。   That is, when the piston 128 retreats, as shown in FIG. 7, the opening and closing portion 166 of the suction valve 148 is elastically deformed from the front surface of the piston 128 by the pressure of the fluid, so that the suction port 154 is opened. The fluid flowing into the suction passage 152 of the piston 128 is supplied to the compression chamber 142.

このような状態で、流体を圧縮するため、前記往復動式モータ１０８の駆動により前記ピストン１２８が前進すると、図８に示したように、前記吸入弁１４８は、自体の弾性力により前記ピストン１２８の前方面に密着されて吸入口１５４が閉じられる。次いで、前記ピストン１２８が更に前進して圧縮室１４２内部の圧力が設定圧以上になると、吐出弁１５０が開放されて前記圧縮室１４２の内部で圧縮された流体が外部に吐出される。   In this state, when the piston 128 advances by driving the reciprocating motor 108 to compress the fluid, as shown in FIG. 8, the suction valve 148 causes the piston 128 to move due to its own elastic force. And the suction port 154 is closed. Next, when the piston 128 further advances and the pressure in the compression chamber 142 becomes equal to or higher than the set pressure, the discharge valve 150 is opened, and the fluid compressed in the compression chamber 142 is discharged to the outside.

然るに、このような従来の往復動式圧縮機の吸入弁は、薄い円形の平板状に形成され、ピストンに固定された固定部を中心に前記開閉部が弾性変形されることで吸入口の開閉が行われるため、前記開閉部の持続的な開閉動作によって吸入弁が疲労により破損するか、または過度な開きにより破損して、製品の信頼性が低下するという不都合な点があった。   However, the suction valve of such a conventional reciprocating compressor is formed in a thin circular flat plate shape, and the opening / closing portion is elastically deformed around a fixed portion fixed to a piston, thereby opening and closing the suction port. Therefore, there has been an inconvenience that the suction valve is damaged due to fatigue due to the continuous opening / closing operation of the opening / closing unit or is damaged due to excessive opening, thereby reducing the reliability of the product.

また、前記吸入弁の弾性変形により吸入口の開閉が行われるため、過度な開閉動作により応答性が低下するという不都合な点があった。   In addition, since the suction port is opened and closed by the elastic deformation of the suction valve, there is an inconvenience that responsiveness is reduced due to excessive opening and closing operation.

また、吸入弁がピストンの前方面にボルトにより螺合されるため、圧縮室の内部に死体積（dead volume）が存在して、圧縮効率が低下するという不都合な点があった。   In addition, since the suction valve is screwed to the front surface of the piston with a bolt, there is a disadvantage that a dead volume exists inside the compression chamber and the compression efficiency is reduced.

本発明は、このような従来の課題に鑑みてなされたもので、回動及び直線往復運動により吸入弁が開閉動作を行うようにし、吸入弁が過度に開かれることを防止して、吸入弁が疲労により破損することを防止して、圧縮機の信頼性を向上し得る往復動式圧縮機の吸入弁アセンブリを提供することを目的とする。   The present invention has been made in view of such a conventional problem, and has a suction valve that opens and closes by rotating and reciprocating linearly, thereby preventing the suction valve from being excessively opened. An object of the present invention is to provide a suction valve assembly of a reciprocating compressor which can prevent the compressor from being damaged by fatigue and improve the reliability of the compressor.

また、本発明の他の目的は、吸入弁が過度に開くことを防止することで、開閉動作による弁の応答性を向上し得る往復動式圧縮機の吸入弁アセンブリを提供することにある。   Another object of the present invention is to provide a suction valve assembly of a reciprocating compressor that can improve the responsiveness of the valve by opening and closing by preventing the suction valve from opening excessively.

また、本発明の更に他の目的は、流体が圧縮される圧縮室の内部に存在する死体積を最小化することで、圧縮効率を向上し得る往復動式圧縮機の吸入弁アセンブリを提供することにある。   Still another object of the present invention is to provide a suction valve assembly of a reciprocating compressor that can improve compression efficiency by minimizing a dead volume existing inside a compression chamber in which a fluid is compressed. It is in.

このような目的を達成するため、本発明に係る往復動式圧縮機の吸入弁アセンブリは、ピストンに形成された弁装着部に挿入係合され、前記ピストンの吸入通路に流入した流体をシリンダの圧縮室に供給するための吸入口が少なくとも一つ以上形成された弁支持体と、該弁支持体に所定設定範囲内で回動するように係合されて、該弁支持体に形成された吸入口を開閉する動作を行う吸入弁と、を包含して構成されることを特徴とする。   In order to achieve such an object, the suction valve assembly of the reciprocating compressor according to the present invention is inserted into and engaged with a valve mounting portion formed on the piston, and transfers the fluid flowing into the suction passage of the piston to the cylinder. A valve support formed with at least one or more suction ports for supplying to the compression chamber, the valve support being engaged with the valve support so as to rotate within a predetermined set range, and formed in the valve support; And a suction valve for opening and closing the suction port.

また、前記弁支持体は、その外周面が前記弁装着部に係合し、前記吸入弁をヒンジ軸支するためのヒンジピンが挿入されるピンホールが穿孔形成された段付円板状に形成されることを特徴とする。また、前記弁支持体は、前記ピンホールを境界にして、一方面には吸入口が少なくとも一つ以上穿孔形成され、他方面には前記吸入弁が係止されることで該吸入弁が設定範囲以上開放されることを防止するストッパが形成されることを特徴とする。   Further, the valve support is formed in a stepped disc shape in which a pin hole into which a hinge pin for supporting the suction valve by a hinge is inserted is formed by engaging an outer peripheral surface of the valve support with the valve mounting portion. It is characterized by being performed. The valve support is provided with at least one suction port formed on one side with the pinhole as a boundary, and the suction valve is locked on the other side to set the suction valve. A stopper for preventing the opening beyond the range is formed.

更に、前記吸入弁は、段付円板状に形成され、その中央に前記ヒンジピンが挿入されるスロットが穿孔形成されることを特徴とする。更に、前記吸入弁は、前記ピンホールを境界にして、一方面には前記弁支持体の吸入口を開閉する動作を行う開閉部が形成され、他方面には前記弁支持体のストッパに係止される係止部が形成されることを特徴とする。   Further, the suction valve is formed in the shape of a stepped disk, and a slot into which the hinge pin is inserted is formed in the center of the suction valve. Further, the suction valve has an opening / closing portion that opens and closes the suction port of the valve support on one surface, with the pinhole as a boundary, and the other surface relates to a stopper of the valve support. A locking portion to be stopped is formed.

本発明に係る往復動式圧縮機の吸入弁アセンブリによれば、吸入弁がヒンジピンが挿入されたスロットを中心に回動されると共に、該スロットに沿って直線移動されることで開閉動作を行うため、前記吸入弁が持続的な開閉動作を行っても疲労による変形または破損を防止して製品の信頼性を向上し得るという効果を奏する。   According to the suction valve assembly of the reciprocating compressor according to the present invention, the suction valve is rotated about the slot in which the hinge pin is inserted, and is linearly moved along the slot to perform the opening / closing operation. Therefore, even if the suction valve performs a continuous opening / closing operation, it is possible to prevent deformation or breakage due to fatigue, thereby improving the reliability of the product.

また、前記吸入弁が開放されるとき、弁支持体に形成されたストッパに吸入弁の係止部が係止されて前記吸入弁の開放角度が制限されるため、前記吸入弁の過度な開放による弁の破損を防止して弁の応答性を向上し、弁の動作時に発生する騒音及び振動を最小化し得るという効果を奏する。   Further, when the suction valve is opened, the locking portion of the suction valve is locked by a stopper formed on the valve support, and the opening angle of the suction valve is limited. This prevents the valve from being damaged, thereby improving the responsiveness of the valve and minimizing the noise and vibration generated during the operation of the valve.

また、前記圧縮室の一部をなす吸入弁の前面が平面状に形成されることで、前記圧縮室内部のデッドボリュームを最小化し得るという効果を奏する。   In addition, since the front surface of the suction valve, which forms a part of the compression chamber, is formed in a flat shape, the dead volume inside the compression chamber can be minimized.

以下、本発明に係る往復動式圧縮機の吸入弁アセンブリの実施の形態を図面に基づいて説明する。   Hereinafter, an embodiment of a suction valve assembly of a reciprocating compressor according to the present invention will be described with reference to the drawings.

図１は、本発明に係る往復動式圧縮機の構造を示した断面図で、図示されたように、本発明に係る往復動式圧縮機は、所定密閉空間を有し、流体が吸入される吸入管２、及び圧縮された流体が吐出される吐出管４がそれぞれ連結されるケース６と、該ケース６の内部に収納配置され、電源の印加により往復運動力を発生する往復動式モータ８と、該往復動式モータ８から発生する往復運動力の伝達を受けて流体を圧縮する圧縮ユニット１０と、前記往復動式モータ８及び圧縮ユニット１０を支持するフレーム１２，１４，１６と、を包含して構成されている。   FIG. 1 is a cross-sectional view illustrating the structure of a reciprocating compressor according to the present invention. As shown in the drawing, the reciprocating compressor according to the present invention has a predetermined closed space, and fluid is sucked. 6 to which the suction pipe 2 and the discharge pipe 4 from which the compressed fluid is discharged are connected to each other, and a reciprocating motor that is housed and disposed inside the case 6 and generates a reciprocating motion force by applying power. 8, a compression unit 10 that receives a reciprocating motion force generated by the reciprocating motor 8 to compress a fluid, and frames 12, 14, 16 that support the reciprocating motor 8 and the compression unit 10. It is comprised including.

前記往復動式モータ８は、内部にコイル２２が巻回された中空円筒状のアウターステータ１８と、該アウターステータ１８の内周面に所定エアギャップを有して配置されたインナーステータ２０と、前記アフターステータ１８とインナーステータ２０間のエアギャップに往復運動自在に配置されたマグネット２４と、から構成される。   The reciprocating motor 8 includes a hollow cylindrical outer stator 18 in which a coil 22 is wound, an inner stator 20 disposed with a predetermined air gap on an inner peripheral surface of the outer stator 18, And a magnet 24 arranged reciprocally in an air gap between the after stator 18 and the inner stator 20.

ここで、前記マグネット２４は、マグネットホルダー２６の外周面に円周方向に等間隔を有して固定され、該マグネットホルダー２６は、前記圧縮ユニット１０の後述するピストン３０に連結される。   Here, the magnet 24 is fixed to the outer peripheral surface of the magnet holder 26 at equal intervals in the circumferential direction, and the magnet holder 26 is connected to a piston 30 of the compression unit 10 described later.

また、前記マグネットホルダー２６の両方側面と前記フレーム１２，１６間に、第１共振バネ４８及び第２共振バネ５０が設置されることで、後述するピストン３０の共振運動が誘導される。   Further, the first resonance spring 48 and the second resonance spring 50 are installed between both side surfaces of the magnet holder 26 and the frames 12 and 16, so that a resonance movement of the piston 30 described later is induced.

また、前記圧縮ユニット１０は、前記マグネットホルダー２６に連結されて往復運動を行うピストン３０と、該ピストン３０が摺動自在に挿入されて圧縮室３２を形成するシリンダ３４と、前記ピストン３０の前方に装着された吸入弁アセンブリ３８と、前記シリンダ３４の前方に装着されて、前記圧縮室３２内部の圧力が設定圧以上になると該圧縮室３２の内部で圧縮された流体を外部に吐出する吐出弁アセンブリ４０と、から構成される。   The compression unit 10 includes a piston 30 connected to the magnet holder 26 for reciprocating motion, a cylinder 34 into which the piston 30 is slidably inserted to form a compression chamber 32, and a front portion of the piston 30. And a discharge valve assembly 38 mounted in front of the cylinder 34 for discharging the fluid compressed inside the compression chamber 32 to the outside when the pressure inside the compression chamber 32 exceeds a set pressure. And a valve assembly 40.

また、前記ピストン３０は、長手方向に流体が吸入される吸入通路５１が貫通形成され、前記ピストン３０の前方内周面には、前記吸入弁アセンブリ３８が装着される段状の弁装着部５２が形成される。   The piston 30 has a suction passage 51 through which a fluid is sucked in a longitudinal direction, and a stepped valve mounting portion 52 to which the suction valve assembly 38 is mounted is formed in a front inner peripheral surface of the piston 30. Is formed.

また、前記吸入弁アセンブリ３８は、図２に示したように、前記ピストン３０に形成された弁装着部５２に挿入係合され、前記ピストン３０の吸入通路５１に流入された流体を前記シリンダ３４の圧縮室３２に供給するための吸入口５４が少なくとも一つ以上穿孔形成された段付円板状の弁支持体６０と、該弁支持体６０に所定設定範囲内で回動されるように係合されることで、該弁支持体６０に形成された吸入口５４を開閉させる吸入弁７０と、から構成される。   Further, as shown in FIG. 2, the suction valve assembly 38 is inserted into and engaged with a valve mounting portion 52 formed on the piston 30 so that the fluid flowing into the suction passage 51 of the piston 30 is transferred to the cylinder 34. A stepped disk-shaped valve support body 60 having at least one or more perforated suction ports 54 for supplying to the compression chamber 32, and the valve support body 60 is rotated within a predetermined set range. A suction valve 70 that opens and closes the suction port 54 formed in the valve support 60 when engaged.

前記弁支持体６０は、円板状に形成されてその外周面が前記弁装着部５２に挿入係合され、前記弁支持体６０の中心には、前記吸入弁７０をヒンジ軸支するためにヒンジピン８０が挿入されるピンホール６２が直径方向に穿孔形成される。また、該ピンホール６２を境界にして、前記弁支持体６０の一方面には前記吸入口５４が穿孔形成され、他方面には前記吸入弁７０が所定範囲以上開くことを防止するためのストッパ６４が形成される。   The valve support 60 is formed in a disk shape, and its outer peripheral surface is inserted and engaged with the valve mounting portion 52. The center of the valve support 60 is used to pivotally support the suction valve 70 with a hinge. A pin hole 62 into which the hinge pin 80 is inserted is formed in the diameter direction. A stopper for preventing the suction valve 70 from opening beyond a predetermined range is formed on one side of the valve support body 60 on the other side with the pin hole 62 as a boundary. 64 are formed.

前記弁支持体６０のストッパ６４は、該弁支持体６０の中心から縁部に行くほど高さが低くなるように傾斜している。   The stopper 64 of the valve support 60 is inclined so that its height decreases from the center of the valve support 60 to the edge.

また、前記吸入弁７０は、円板状で、前記ヒンジピン８０が挿入されて前記弁支持体６０に回動自在に支持されるスロット７２が形成される。前記吸入弁７０は、前記スロット７２を境界にして、一方面に所定高さに突出して前記吸入口５４が形成された弁支持体６０の一方面６６に密着される開閉部７４と、前記弁支持体６０のストッパ６４に係止されて前記開閉部７４の開放角度を制限する係止部７６と、から構成される。   The suction valve 70 has a disk shape, and has a slot 72 into which the hinge pin 80 is inserted and which is rotatably supported by the valve support 60. The suction valve 70 has an opening / closing portion 74 that is in close contact with one surface 66 of the valve support body 60 having the slot 72 as a boundary and protruding to a predetermined height on one surface and having the suction port 54 formed therein, A locking portion 76 locked by the stopper 64 of the support body 60 to limit the opening angle of the opening / closing portion 74.

また、前記吸入弁７０のスロット７２は、該吸入弁７０が開かれるとき回動すると共に、前記ピストン３０の長手方向に直線移動されるように所定長さの長孔に形成される。前記吸入弁７０の開閉部７４は、前記係止部７６に比べてその高さが高く形成される。   The slot 72 of the suction valve 70 is formed in a long hole of a predetermined length so as to rotate when the suction valve 70 is opened and to move linearly in the longitudinal direction of the piston 30. The opening / closing portion 74 of the suction valve 70 is formed to be higher than the locking portion 76.

また、前記ピストン３０の弁装着部５２の前方側内周面には、前記吸入弁７０の外周面が密着して密封される弁シート部８２が切削形成され、該弁シート部８２は、前記吸入弁７０が回動し得るように所定曲面状に形成される。且つ、前記吸入弁７０の外周面も、前記弁シート部８２に対応して曲面状に切削形成されることで、該弁シート部８２に面接触された状態で前記吸入弁７０が摺動するようになる。   Further, a valve seat portion 82 in which the outer peripheral surface of the suction valve 70 is tightly sealed is formed on the inner peripheral surface on the front side of the valve mounting portion 52 of the piston 30. The suction valve 70 is formed in a predetermined curved shape so that it can rotate. In addition, the outer peripheral surface of the suction valve 70 is also cut and formed in a curved shape corresponding to the valve seat portion 82, so that the suction valve 70 slides in a state of being in surface contact with the valve seat portion 82. Become like

以下、このように構成された本発明に係る往復動式圧縮機の吸入弁アセンブリの動作を説明する。   Hereinafter, the operation of the suction valve assembly of the reciprocating compressor according to the present invention will be described.

図３及び図４は、本発明に係る往復動式圧縮機の吸入弁アセンブリの動作状態を示した断面図で、図示されたように、本発明に係る往復動式圧縮機の吸入弁アセンブリにおいては、往復動式モータ８が駆動すると、マグネット２４が直線往復運動し、該マグネット２４に連結されたピストン３０が直線往復運動することで、流体を圧縮する。   FIGS. 3 and 4 are sectional views illustrating the operation of the suction valve assembly of the reciprocating compressor according to the present invention. As shown in FIG. When the reciprocating motor 8 is driven, the magnet 24 linearly reciprocates, and the piston 30 connected to the magnet 24 linearly reciprocates, thereby compressing the fluid.

即ち、ピストン３０が後退すると、図３に示したように、前記ピストン３０の吸入通路５１に流入された流体と前記シリンダ３４の圧縮室３２間の圧力差により吸入弁７０が開かれる。つまり、該吸入弁７０が、前記ヒンジピン８０が挿入されたスロット７２を中心に回動すると共に、該スロット７２に沿って直線移動することで、前記吸入弁７０の開閉部７４が前記弁支持体６０に形成された吸入口５４から分離されて前記吸入口５４を開放し、よって、前記ピストン３０の吸入通路５１の流体が、前記吸入口５４を通して前記シリンダ３４の圧縮室３２に供給される。   That is, when the piston 30 retreats, as shown in FIG. 3, the suction valve 70 is opened due to the pressure difference between the fluid flowing into the suction passage 51 of the piston 30 and the compression chamber 32 of the cylinder 34. In other words, the suction valve 70 rotates about the slot 72 in which the hinge pin 80 is inserted and linearly moves along the slot 72, so that the opening / closing portion 74 of the suction valve 70 is The suction port 54 is separated from the suction port 54 formed at the opening 60 to open the suction port 54, so that the fluid in the suction passage 51 of the piston 30 is supplied to the compression chamber 32 of the cylinder 34 through the suction port 54.

このとき、前記吸入弁７０の係止部７６が、前記弁支持体６０に形成されたストッパ６４に係止されて前記吸入弁７０の開放角度が制限されることで、該吸入弁７０が過度に開くことが防止される。   At this time, the locking portion 76 of the suction valve 70 is locked by the stopper 64 formed on the valve support body 60 and the opening angle of the suction valve 70 is limited, so that the suction valve 70 is Is prevented from opening.

このような状態で、図４に示したように、前記ピストン３０が前進すると、前記吸入弁７０が閉じられることで前記圧縮室３２内部の流体が圧縮され、該圧縮室３２内部の圧力が設定圧以上になると、前記吐出弁アセンブリ４０の吐出弁９０が開放されながら、圧縮された流体が前記吐出管４を通して外部に吐出される。   In such a state, as shown in FIG. 4, when the piston 30 advances, the fluid in the compression chamber 32 is compressed by closing the suction valve 70, and the pressure in the compression chamber 32 is set. When the pressure exceeds the pressure, the compressed fluid is discharged to the outside through the discharge pipe 4 while the discharge valve 90 of the discharge valve assembly 40 is opened.

ここで、前記吸入弁７０の動作をより詳しく説明すると、前記圧縮室３２内の圧力により回動されると共に直線移動されることで、前記吸入弁７０の開閉部７４が前記弁支持体６０の吸入口５４が形成された一方面６６に密着され、前記吸入弁７０の外周面が前記ピストン３０に形成された弁シート部８２に面接触されることでシーリング作用が行われる。   Here, the operation of the suction valve 70 will be described in more detail. The opening / closing portion 74 of the suction valve 70 is rotated and linearly moved by the pressure in the compression chamber 32, and The sealing action is performed when the suction port 54 is in close contact with the one surface 66 in which the suction port 54 is formed, and the outer peripheral surface of the suction valve 70 is in surface contact with the valve seat portion 82 formed in the piston 30.

本発明に係る往復動式圧縮機の構造を示した縦断面図である。It is a longitudinal section showing the structure of the reciprocating compressor concerning the present invention. 本発明に係る吸入弁アセンブリの分解斜視図である。1 is an exploded perspective view of a suction valve assembly according to the present invention. 本発明に係る吸入弁アセンブリの開放状態を示した縦断面図である。FIG. 3 is a longitudinal sectional view showing an open state of the suction valve assembly according to the present invention. 本発明に係る吸入弁アセンブリの閉鎖状態を示した縦断面図である。FIG. 3 is a longitudinal sectional view showing a closed state of the suction valve assembly according to the present invention. 従来の往復動式圧縮機の構造を示した縦断面図である。It is a longitudinal section showing the structure of the conventional reciprocating compressor. 従来の吸入弁の分解斜視図である。It is an exploded perspective view of the conventional suction valve. 従来の吸入弁の開放状態を示した縦断面図である。It is a longitudinal section showing the open state of the conventional suction valve. 従来の吸入弁の閉鎖状態を示した縦断面図である。It is a longitudinal section showing the closed state of the conventional suction valve.

符号の説明Explanation of reference numerals

２…吸入管
４…吐出管
６…ケース
８…往復動式モータ
１０…圧縮ユニット
１２…第１フレーム
１４…第２フレーム
１６…第３フレーム
１８…アウターステータ
２０…インナーステータ
２２…コイル
２４…マグネット
２６…マグネットホルダー
３０…ピストン
３２…圧縮室
３４…シリンダ
３８…吸入弁アセンブリ
４０…吐出弁アセンブリ
５１…吸入通路
５２…弁装着部
５４…吸入口
６０…弁支持体
６２…ピンホール
６４…ストッパ
７０…吸入弁
７２…スロット
７４…開閉部
７６…係止部
８０…ヒンジピン
９０…吐出弁 2 ... suction pipe 4 ... discharge pipe 6 ... case 8 ... reciprocating motor 10 ... compression unit 12 ... first frame 14 ... second frame 16 ... third frame 18 ... outer stator 20 ... inner stator 22 ... coil 24 ... magnet 26 magnet holder 30 piston 32 compression chamber 34 cylinder 38 suction valve assembly 40 discharge valve assembly 51 suction passage 52 valve mounting portion 54 suction port 60 valve support 62 pinhole 64 stopper 70 ... Suction valve 72 ... Slot 74 ... Opening / closing part 76 ... Locking part 80 ... Hinge pin 90 ... Discharge valve

Claims (10)

ピストンに形成された弁装着部に挿入係合され、前記ピストンの吸入通路に流入した流体をシリンダの圧縮室に供給するための吸入口が少なくとも一つ以上穿孔形成された弁支持体と、
該弁支持体に所定設定範囲内で回動するように係合して、該弁支持体に形成された吸入口を開閉する動作を行う吸入弁と、
を包含して構成されることを特徴とする往復動式圧縮機の吸入弁アセンブリ。 A valve support body, which is inserted and engaged with a valve mounting portion formed on the piston, and has at least one or more suction holes for supplying fluid flowing into the suction passage of the piston to the compression chamber of the cylinder,
A suction valve engaged with the valve support so as to rotate within a predetermined set range, and performing an operation of opening and closing a suction port formed in the valve support;
And a suction valve assembly for a reciprocating compressor. 前記弁支持体は、その外周面が前記弁装着部に係合し、前記吸入弁をヒンジ軸支するためのヒンジピンが挿入されるピンホールが穿孔形成された段付円板状に形成されることを特徴とする請求項１記載の往復動式圧縮機の吸入弁アセンブリ。   The valve support is formed in a stepped disk shape having an outer peripheral surface engaged with the valve mounting portion, and a pin hole into which a hinge pin for hinge-supporting the suction valve is inserted is formed. The suction valve assembly of a reciprocating compressor according to claim 1, wherein: 前記弁支持体は、前記ピンホールを境界にして、一方面には吸入口が少なくとも一つ以上穿孔形成され、他方面には前記吸入弁が係止されることで該吸入弁が設定範囲以上開放されることを防止するストッパが形成されることを特徴とする請求項２記載の往復動式圧縮機の吸入弁アセンブリ。   The valve support body has at least one suction port formed on one side with the pinhole as a boundary, and the suction valve is locked on the other side so that the suction valve is at or above a set range. 3. The suction valve assembly for a reciprocating compressor according to claim 2, wherein a stopper for preventing the valve from being opened is formed. 前記ストッパは、前記弁支持体の中心から縁部に行くほど高さが低くなる傾斜面を有するように形成されることを特徴とする請求項３記載の往復動式圧縮機の吸入弁アセンブリ。   4. The suction valve assembly of claim 3, wherein the stopper has an inclined surface having a height that decreases from a center of the valve support to an edge of the valve support. 5. 前記吸入弁は、段付円板状に形成され、その中央に前記ヒンジピンが挿入されるスロットが穿孔形成されることを特徴とする請求項２記載の往復動式圧縮機の吸入弁アセンブリ。   3. The suction valve assembly for a reciprocating compressor according to claim 2, wherein the suction valve is formed in a stepped disk shape, and a slot into which the hinge pin is inserted is formed at the center thereof. 前記スロットは、前記吸入弁が所定範囲内で直線移動するように、前記ヒンジピンが摺動する所定距離を有する長孔であることを特徴とする請求項５記載の往復動式圧縮機の吸入弁アセンブリ。   6. The suction valve of a reciprocating compressor according to claim 5, wherein the slot is a long hole having a predetermined distance in which the hinge pin slides so that the suction valve moves linearly within a predetermined range. assembly. 前記吸入弁は、前記ピンホールを境界にして、一方面には前記弁支持体の吸入口を開閉する動作を行う開閉部が形成され、他方面には前記弁支持体のストッパに係止される係止部が形成されることを特徴とする請求項５記載の往復動式圧縮機の吸入弁アセンブリ。   The suction valve has an opening / closing portion that opens and closes the suction port of the valve support on one surface, and is locked to a stopper of the valve support on the other surface, with the pinhole as a boundary. 6. The suction valve assembly for a reciprocating compressor according to claim 5, wherein a locking portion is formed. 前記吸入弁の開閉部は、前記係止部に比べてその高さが高く形成されることを特徴とする請求項７記載の往復動式圧縮機の吸入弁アセンブリ。   The suction valve assembly of a reciprocating compressor according to claim 7, wherein the opening and closing part of the suction valve is formed to be higher than the locking part. 前記ピストンの弁装着部の内周面には、前記吸入弁の外周面が密着して密封される弁シート部が切削形成されることを特徴とする請求項５記載の往復動式圧縮機の吸入弁アセンブリ。   6. The reciprocating compressor according to claim 5, wherein a valve seat portion in which an outer peripheral surface of the suction valve is tightly sealed is formed on an inner peripheral surface of a valve mounting portion of the piston. Suction valve assembly. 前記弁シート部は、前記吸入弁が回動し得るように曲面状に切削形成され、該吸入弁の外周面は、前記弁シート部の表面に密着して摺動するように、該弁シート部の曲面に対応する曲面状に切削形成されることを特徴とする請求項９記載の往復動式圧縮機の吸入弁アセンブリ。   The valve seat portion is cut and formed into a curved surface so that the suction valve can rotate, and the outer peripheral surface of the suction valve slides in close contact with the surface of the valve seat portion. The suction valve assembly for a reciprocating compressor according to claim 9, wherein the suction valve assembly is cut and formed into a curved surface corresponding to a curved surface of the portion.
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DE102004010070A1 (en) 2004-09-23
KR100480136B1 (en) 2005-04-07
DE102004010070B4 (en) 2007-09-06
US20040228746A1 (en) 2004-11-18
KR20040078520A (en) 2004-09-10
CN1538063A (en) 2004-10-20

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