JP2007239670A5 - - Google Patents

Claims (3)

密閉容器内に圧縮要素及び電動要素を収納し、前記電動要素で駆動される駆動軸に設けられた偏心部とピストンとがコンロッドによって連結される密閉形圧縮機において、
前記ピストンに設けられる内球面と、前記内球面に包持され前記ピストンとボールジョイント機構によって連結される前記コンロッドの球体部とを備え、
前記球体部には一側と他側のそれぞれに平面部を形成し、
前記内球面には前記球体部の外径より小さく、かつ前記平面部間の寸法より大きい開口を形成し、
前記球体部の先端には、前記球体部の中心からの距離が前記球体部の半径よりも小さい小半径部を有する密閉形圧縮機。 In a hermetic compressor in which a compression element and an electric element are housed in a hermetic container, and an eccentric portion provided on a drive shaft driven by the electric element and a piston are connected by a connecting rod.
An inner spherical surface provided in the piston, are embraced within said spherical surface and a spherical portion of said connecting rod being connected by the piston and the ball joint mechanism,
In the spherical part, a flat part is formed on each of one side and the other side,
Forming an opening in the inner spherical surface that is smaller than the outer diameter of the spherical portion and larger than the dimension between the plane portions;
The tip of the spherical portion, hermetic compressor distance from the center of the spherical portion has a small small radius portion than the radius of the spherical portion. 密閉容器内に圧縮要素及び電動要素を収納し、前記電動要素で駆動される駆動軸に設けられた偏心部とピストンとがコンロッドによって連結される密閉形圧縮機において、
前記ピストンに設けられる内球面と、前記内球面に包持され前記ピストンとボールジョイント機構によって連結される前記コンロッドの球体部とを備え、
前記球体部には一側と他側のそれぞれに平面部を形成し、
前記内球面には前記球体部の外径より小さく、かつ前記平面部間の寸法より大きい開口を形成し、
前記球体部の先端には、前記球体部の中心からの距離が前記球体部の半径よりも小さい部分を形成すると共に、該球体部の半径よりも小さい部分と前記平面部とを繋ぐ流通路を形成した密閉形圧縮機。 In a hermetic compressor in which a compression element and an electric element are housed in a hermetic container, and an eccentric portion provided on a drive shaft driven by the electric element and a piston are connected by a connecting rod.
An inner spherical surface provided in the piston, and a spherical portion of the connecting rod that is held by the inner spherical surface and connected to the piston by a ball joint mechanism;
In the spherical part, a flat part is formed on each of one side and the other side,
Forming an opening in the inner spherical surface that is smaller than the outer diameter of the spherical portion and larger than the dimension between the plane portions;
At the tip of the sphere portion, a portion having a distance from the center of the sphere portion that is smaller than the radius of the sphere portion and a flow passage that connects the portion smaller than the radius of the sphere portion and the flat portion is provided. Formed hermetic compressor. 請求項１又は２のいずれかに記載の密閉型圧縮機を用いた冷蔵庫。A refrigerator using the hermetic compressor according to claim 1.