Vibrating type compressor

A vibration type compressor, in which a compressor main body being housed in a gastight vessel comprising a power supply terminal, a suction pipe into which a low-pressure refrigerant flows and a delivery pipe from which a high-pressure refrigerant flows, the compressor main body comprising a cylindrical yoke, a magnetic path member formed from a column-shaped core pole which closes an end of the yoke and protrudes to inside coaxially, a cylindrical permanent magnet arranged in the magnetic path, an electromagnetic coil which is arranged within a gap between the magnetic path members by being supported by a mechanical vibration system so as to be able to vibrate and is wound around a lead plate to perform the connection treatment of a terminal thereof, a supporting member which supports the electromagnetic coil, a piston connected to the electromagnetic coil through the supporting member, and a cylinder block which closes the other end of the cylindrical yoke and in the interior of which are formed a low-pressure chamber communicating with the suction pipe, a high-pressure chamber communicating with the delivery pipe and a cylinder housing the piston, the vibration type compressor being so configured as to vibrate the piston connected to the electromagnetic coil by supplying an alternating current to the electromagnetic coil and to discharge a compressed high-pressure refrigerant from the delivery pipe, characterized

• in that the cylindrical permanent magnet is formed from a neodymium magnet or a rare-earth magnet and
• in that the cylindrical permanent magnet is divided into at least four parts in the axial direction thereof, each of the divided magnets having a plating-less surface, being bonded and fixed to the cylindrical core pole side.

A vibration type compressor, in which a compressor main body being housed in a gastight vessel comprising a power supply terminal, a suction pipe into which a low-pressure refrigerant flows and a delivery pipe from which a high-pressure refrigerant flows, the compressor main body comprising a cylindrical yoke, a magnetic path member formed from a column-shaped core pole which closes an end of the yoke and protrudes to inside coaxially, a cylindrical permanent magnet arranged in the magnetic path, an electromagnetic coil which is arranged within a gap between the magnetic path members by being supported by a mechanical vibration system so as to be able to vibrate and is wound around a lead plate to perform the connection treatment of a terminal thereof, a supporting member which supports the electromagnetic coil, a piston connected to the electromagnetic coil through the supporting member, and a cylinder block which closes the other end of the cylindrical yoke and in the interior of which are formed a low-pressure chamber communicating with the suction pipe, a high-pressure chamber communicating with the delivery pipe and a cylinder housing the piston, the vibration type compressor being so configured as to vibrate the piston connected to the electromagnetic coil by supplying an alternating current to the electromagnetic coil and to discharge a compressed high-pressure refrigerant from the delivery pipe, characterized

• in that the supporting member comprises a flange and two base material;
• the flange comprising an inside-diameter boss portion, which has in the interior portion thereof a diameter into which the piston is inserted, and an outside-diameter rib portion, which has the outside diameter of an electromagnetic coil supporting plate which supports the electromagnetic coil, with a plurality of holes being drilled in a disk portion formed by the inside-diameter boss portion and the outside-diameter rib portion;
• and
• the two base materials formed from a disk-shaped insulator each comprising an inside-diameter rib portion, which has in the central portion thereof a diameter into which the inside-diameter boss portion provided in the flange portion is fitted, engaging members, which are provided on a surface on the side opposite to the side where the inside-diameter rib portion is formed and in which a locking convexity and a locking concavity are provided in positions corresponding to the holes drilled in the disk portion of the flange, and at least one protrusion, which is provided at an end edge portion of the surface provided with the engaging members, and characterized in that the supporting member is configured to be of such a construction that the flange is supported and fixed from both sides thereof in a sandwiched condition by means of the two base materials.