Lg Electronics Inc.

Bon-Cheol Ku

Hyung-Pyo Yoon

Si-Hang Jeon

Jin-Yoong Do

Hyuk Soo Lee

Gye-Young Song

Jung-Sik Park

Seong-Yeol Hyeon

Won-Hyun Jung

Hyo-Jae Lee

Won-hyun Jung

Hyeong-Suk Kim

Seong-Joon Hong

Jong-Yoon Choi

Won-Hyuk Jung

Sang-Wook Ahn

A mover assembly of a reciprocating motor includes: a mover body disposed at a gap between an inner stator and an outer stator; permanent magnets fixed at an outer circumferential surface of the mover body and reciprocally moved together with the mover body in a direction of an induction magnetic field between the inner stator and the outer stator; and a mixed member made of a fiber and a resin to cover and fix the permanent magnets. The permanent magnets are arranged at an outer circumferential face of the mover body, covered with the mixed member obtained by mixing a fiber and a resin, and hardened to be fixed. Therefore, the permanent magnets can be firmly and easily fixed at the mover body. In addition, by molding the mover body with a non-magnetic and non-conductive material, leakage of the magnetic force of the permanent magnets can be prevented.

Mover assembly of reciprocating motor

A discharge valve () of a compressor is disclosed. The discharge valve () contains a spring-loaded valve body (). Valve body () is preferably made of nonferrous metal like aluminum or magnesium and is coated by a covering () of uniform thickness, the covering () being preferably made of plastic material like polyetheretherketone (PEEK) by insertion molding. By that way a wear resistant and light-weight discharge valve is produced.

Discharge valve and valve assembly of reciprocating compressor having the same

Disclosed is a stator of reciprocating motor comprising: a stator including two lamination assemblies formed accordingly as a plurality of lamination sheets are stacked as a cylindrical shape or a circular are shape; and a mover inserted into an air gap between said two lamination assemblies and linearly reciprocating. In the stator, the lamination sheets constituting the lamination assembly are thicker at an outer circumference side of the lamination assembly than at an inner circumference said thereof. According to this, a path of a flux applied to the lamination assembly is maximized thus to minimize a resistance of the flux.

Stator of reciprocating motor

A discharge valve apparatus for a reciprocating compressor comprises a discharge cover having built-in volume so as to cover a front end surface of the cylinder; a discharge valve disposed so as to be contacted/separated to/from the front end surface of the cylinder by a piston which undergoes a reciprocating movement inside the cylinder; and a valve spring having both ends respectively adhered to rear side of the discharge valve and to inner surface of the discharge cover so as to elastically support the rear side of the discharge valve. A rotation radius of the valve spring of a conical type is formed to be gradually reduced or increased so that impacts of a part to other parts during the compression can be prevented. Accordingly, when the valve spring is compressed in accordance with the compression and discharge strokes of the piston, the impacting noise caused by the impacts of the respective parts in the valve spring can be prevented previously.

Discharge valve apparatus for reciprocating compressor

A mover assembly of a reciprocating motor includes: a mover body disposed at a gap between an inner stator and an outer stator; permanent magnets fixed at an outer circumferential surface of the mover body and reciprocally moved together with the mover body in a direction of an induction magnetic field between the inner stator and the outer stator; and a mixed member made of a fiber and a resin to cover and fix the permanent magnets. The permanent magnets are arranged at an outer circumferential face of the mover body, covered with the mixed member obtained by mixing a fiber and a resin, and hardened to be fixed. Therefore, the permanent magnets can be firmly and easily fixed at the mover body. In addition, by molding the mover body with a non magnetic and non-conductive material, leakage of the magnetic force of the permanent magnets can be prevented.

A suction valve coupling structure for a reciprocating compressor is disclosed in which a piston being linearly moved in a cylinder upon receipt of driving force from an electric mechanism unit, according to which gas flows through a gas flow passage formed therein, is coupled by welding to a valve for opening and closing the gas flow passage, thereby strengthening the coupling state of the suction valve. Since the coupling structure is simplified, a dead volume is reduced and a stroke volume is increased, improving compression efficiency. A stroke control of the piston is facilitated to enable a precise control of movement of the piston. In addition, a reliability of the coupling of the suction valve can be improved.

Suction valve coupling structure for reciprocating compressor

A reciprocating motor in which a plurality of eddy current preventing holes () are formed in the directions of circumference and shaft of a magnet frame () in a magnet mounting portion () of the magnet frame ()connected between the magnet ()and component part which will perform a reciprocating movement, for transmitting a reciprocating movement of the magnet () to a component part, to prevent deformation of the magnet frame (10)in molding the eddy current () and maintain roundness of the magnet frame precisely by improving the structure of the eddy current preventing holes which are molded in the magnet frame.

Reciprocating motor

A reciprocating motor is disclosed having a magnet frame () connected between a magnet () and an element to be reciprocally moved to transmit a reciprocal movement of the magnet () to the element, the magnet consisting of a first mounting unit () at which the magnet () is fixed and a second mounting unit () made of a different material with the first mounting unit (), being connected to the first mounting (), and with which the element is engaged. A portion of the magnet frame () where the magnet is fixed is made of a nonmetallic material to minimize a loss of flux generated from a winding coil ().

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Kimhae, South Korea

Bon-Cheol Ku