Abstract: Disclosed herein is a linear motor, the size of which is reduced, whereby the production cost of the linear motor is reduced, and efficiency of the linear motor is improved. Also disclosed are a method for controlling the linear motor and a linear compressor equipped with the linear motor. The linear motor comprises a bobbin, a plurality of coil groups having different coil thicknesses and wound on the bobbin, and a magnet linearly movable due to a magnetic field generated by means of the coil groups.

Abstract: A stator fastening structure of a reciprocating motor is provided. In the stator fastening structure of a reciprocating motor, a frame which includes an outer core fixing member, to which an outer core is fixed, and an inner core fixing member, to which an inner core is fixed, wherein the outer core fixing member of the frame and the inner core fixing member of the frame are formed of different material from each other. It is possible to prevent leakage of flux to a frame, in which the reciprocating motor is loaded, to thus minimize the loss of the flux and to reduce material cost and production cost.

Abstract: A stator for a reciprocating motor comprises a bobbin made of an insulating material in which a winding coil is located; a terminal unit forming a single body with the bobbin and connecting the winding coil electrically with an outer power source; and a core unit stacked radially along with the bobbin started from one side of the terminal unit. Therefore, the winding coil and the bobbin can be coupled in simple way, and the core unit can be stacked simply and precisely, so the mass productivity of the motor is able to be increased. Also, the size of the core unit is able to be managed simply and precisely, and then, the contact and impact with other components constructing the motor is prevented, whereby the reliability of the motor can be improved.

Abstract: A driving apparatus of a motor capable of operating a motor of a reciprocating compressor stably by using a simple power voltage control unit. The apparatus includes a power voltage control unit for maintaining a power voltage supplied from a power supply unit as a certain value when a motor is operated, outputting the certain power voltage or cutting off the power voltage after a certain time has passed; and a capacitor for applying the power voltage supplied from the power supply unit to the motor when the power voltage control unit cuts off the power voltage.

Abstract: A frame of a reciprocating compressor includes a main frame having a cylindrical insertion hole to receive a cylinder of a compression unit along a center axis thereof and a flange that supports an outer stator of a reciprocating motor at the outer circumference of the flange. A sub frame is engaged to the main frame by an engaging device and positioned to cover an outer circumferential surface of the cylinder to form an oil flow path in a space between the main frame and the cylinder.

Abstract: A stator structure of reciprocating motor is provided. The stator structure includes a cylindrical stacked core having a plurality of lamination sheets each having a hanging groove, and an elastic ring elastically inserted into and fixed to the hanging groove. The lamination sheets are arranged extending radially and axially with respect to a longitudinal centerline of the cylindrical stacked core. Accordingly, the cylindrical stacked core is firm and the fastening strength between the cylindrical stacked core and an outer core is improved. Therefore, the reliability of the stator structure is improved. Also, it is possible to reduce manufacturing costs and to improve assembly productivity.

Abstract: A reciprocating motor comprises a mover (400) including an opening unit formed as a ring with an opening on (110) its one side; a first stepped unit (120) in which the inner interval of the opening (110) unit is narrowed gradually toward the entrance; and a second stepped unit (130) continued with the first stepped unit (120) and forming the entrance of the opening unit. According to that, the length of the permanent magnet (420) is decided and the entrance width of the opening unit in which the winding coil (300) is located is reduced, thereby the amount of high price permanent magnet used is reduced, reciprocating movement of the mover getting out of the outer core is minimized, flux on the outer core and the inner core flows smoothly, and leakage of the flux is reduced so the function of the motor can be improved.

Abstract: A valve fastening structure of a reciprocating compressor is provided. The valve fastening structure of the reciprocating compressor includes a piston, which is combined with a moving magnet of a driving motor and is in a linear reciprocating motion inside a cylinder and in which a refrigerant channel is formed in the direction of the reciprocating motion, a suction valve arranged in the leading end of the piston, the suction valve for opening and shutting the refrigerant channel of the piston, and magnets inserted into and fixed to the leading end of the piston, the magnets for fixing the suction valve by magnetic force. It is possible to minimize dead volume in the cylinder and to easily control the stroke of the piston by establishing the suction valve as the cardinal point during the controlling of the stroke of the piston. Accordingly, the efficiency of the compressor is improved.

Abstract: Disclosed are a stator for a reciprocating motor and a manufacturing method thereof which are able to simplify assembling processes, to reduce assembling time, and thereby to improve productivity by laminating an inner stator to be a straight line shape and bending to be a cylindrical shape. The stator is fabricated by laminating lamination sheets as a straight line and bending it to be a cylindrical shape, and a mounting band is fixed on inner circumferential surface of the lamination sheets so as to maintain the lamination sheets connected when the lamination sheets are bent to be the cylindrical shape.

Abstract: A stator structure of a reciprocating motor is provided. In the stator structure of a reciprocating motor, a bobbin around a coil is wound; a plurality of unit stacked core members of a predetermined thickness, each of which is formed by stacking a plurality of lamination sheets formed of predetermined shaped thin plates, and radially positioned on the outer circumference of the bobbin; and an injection insulator combining the plurality of unit stacked bobbins to an outer circumference of the bobbin. Accordingly, it is possible to reduce the number of parts that form the stator and to simplify the structure of the stator. Therefore, it is possible to reduce the time required for assembling the parts and reduce the processes of assembling the parts, to thus improve assembly productivity.

Abstract: In a reciprocating compressor including a first frame for supporting a cylinder of a compressing unit, a second frame for supporting a side of an outer stator of a motor unit and a third frame for supporting the other side of the outer stator and an inner stator of the motor unit, wherein the motor unit is arranged between the second and third frames, they are combined with each other by a first combining means, and the assembly is combined with the first frame by a second combining means. Accordingly, a reciprocating compressor is capable of reducing a fabrication cost by eliminating precise processing of construction parts and simplifying an assembly process by constructing a reciprocating motor as one assembly and combining it with a compressing unit.

Abstract: A stator fastening structure of a reciprocating motor is provided. In the stator fastening structure of a reciprocating motor, a frame which includes an outer core fixing member, to which an outer core is fixed, and an inner core fixing member, to which an inner core is fixed, wherein the outer core fixing member of the frame and the inner core fixing member of the frame are formed of different material from each other. It is possible to prevent leakage of flux to a frame, in which the reciprocating motor is loaded, to thus minimize the loss of the flux and to reduce material cost and production cost.

Abstract: A stator structure of a reciprocating motor is provided. In the stator structure of a reciprocating motor, a bobbin around a coil is wound; a plurality of unit stacked core members 61 of a predetermined thickness, each of which is formed by stacking a plurality of lamination sheets formed of predetermined shaped thin plates, and radially positioned on the outer circumference of the bobbin; and an injection insulator combining the plurality of unit stacked bobbins to an outer circumference of the bobbin. Accordingly, it is possible to reduce the number of parts that form the stator and to simplify the structure of the stator. Therefore, it is possible to reduce time for assembling the parts and processes of assembling the parts, to thus improve assembly productivity.

Abstract: A stator structure of a reciprocating motor is provided. In the stator structure of a reciprocating motor, comprising a cylindrical stacked core by radially stacking a plurality of lamination sheets each having a hanging groove, and an elastic ring elastically inserted into and fixed to the hanging groove. Accordingly, the fastening status of the cylindrical stacked core is firm and the fastening strength between the cylindrical stacked core and a core is improved. Therefore, the reliability of the stator structure is improved. Also, it is possible to reduce processing expenses by facilitating the processing and the assembling of parts, to thus reduce manufacturing cost and to improve assembly productivity.

Abstract: A method for core lamination in a motor and a lamination structure thereof are constructed such that a plurality of lamination sheets which is made by thin plate of a predetermined shape are laminated as a predetermined thickness to form a laminated body, that is, a unit lamination core, and the unit lamination core comprising the plurality of lamination sheets is fixedly coupled by a caulking portion or a coupling portion formed on the respective lamination sheet and connected with the adjacent lamination sheets to be in a row, whereby an fabricating process of the unit lamination core is made to be easy and simple to reduce time for fabricating, and a curvature for a curved surface portion of the unit lamination core can be changed so that the present invention can be applied to various motors according to the capacity or the size of the motor.

Abstract: A valve fastening structure of a reciprocating compressor is provided. The valve fastening structure of the reciprocating compressor includes a piston, which is combined with a moving magnet of a driving motor and is in a linear reciprocating motion inside a cylinder and in which a refrigerant channel is formed in the direction of the reciprocating motion, a suction valve arranged in the leading end of the piston, the suction valve for opening and shutting the refrigerant channel of the piston, and magnets inserted into and fixed to the leading end of the piston, the magnets for fixing the suction valve by magnetic force. It is possible to minimize dead volume in the cylinder and to easily control the stroke of the piston by establishing the suction valve as the cardinal point during the controlling of the stroke of the piston. Accordingly, the efficiency of the compressor is improved.

Abstract: In a compressor for adjusting a cooling power such that a piston integrally formed with an oscillator according to the oscillation of said oscillator adjusts the amount of refrigerant absorbed into a cylinder, a cooling power controller for the compressor which can control the cooling power by varying the power itself to change the operation state of the compressor for controlling the temperature of a refrigerator or an air conditioner, includes a power source for varying input alternate power to output the same through a plurality of secondary ports, an applied voltage controller for selecting the secondary port voltage of the power source to control the cooling power of the compressor, and a comparator for comparing a predetermined temperature with the actual temperature of an heat exchanger to control the applied voltage controller.