A rotating electric machine comprises a stator and a rotor. In the rotor, numerous slots are formed along a circumferential direction. In the each of slots, a first stator coil and a second stator coil are inserted and insulated by an insulator inserted before inserting the coils in the slots. The insulator encircles the first and second stator coils so as to be formed into an S shape. The center portion thereof extends over the area between the first and second stator coils. One end of the insulator is held between one surface of the center portion of the insulator and the first stator coil. Other end of the insulator is held between another surface of the center portion of the insulator and the second stator coil.

Rotating electric machine

The invention discloses a permanent magnet type air pump, relates to low-pressure air compression equipment and belongs to a double-cylinder or double-membrane single-phase alternating-current full wave air pump. Driving power of the permanent magnet type air pump is produced through combined action of a magnetic field of a permanent magnet and an electromagnetic field. The two sides of a driving shaft 6 of the permanent magnet type air pump are provided with two permanent magnets 10 correspondingly, the middle of the driving shaft 6 is provided with a coil 4 and a hollow iron core 5 which are fixed to a pump body 3, and the driving shaft 6 can freely move in the hollow iron core 5 in the axial direction. When the coil 4 is connected to a single-phase alternating-current power source, an alternating magnetic pole is produced on the side, facing the permanent magnet, of the iron core 5, and the sides, facing the iron core 5, of magnetic poles of the two magnets on the driving shaft are the same in polarity (N pole or S pole). Due to the fact that the driving shaft 6 does straight reciprocating motion under the effect of attraction and repulsion of the electromagnetic field and the permanent magnet field, two pistons or membranes are driven to achieve air pump suction and compression stroke. Due to the fact that only attraction of the electromagnetic field is used as driving force of the electromagnetic type air pump, the permanent magnet type air pump has the good energy saving effect.

Permanent magnet type air pump

The invention discloses a compressor and refrigeration equipment and belongs to the technical field of compressors The compressor comprises a compressor body The compressor body is internally provided with a cylinder, a piston mechanism arranged in the cylinder and an oil storage part The oil storage part is used for storing lubricating fluid The inner wall of the cylinder is provided with anoil storage groove An elastic deformation oil suction valve plate is arranged in the first oil storage groove The compressor body is further provided with an oil suction pipe The oil suction end ofthe oil suction pipe communicates with the oil storage part The oil discharge end of the oil suction pipe communicates with the first oil storage groove The oil suction pipe is controlled to communicate or be blocked through elastic deformation of the oil suction valve plate According to the compressor provided by the invention, the inner wall of the cylinder is provided with the oil storage groove and the oil suction pipe communicating with the oil storage groove so that the compressor can automatically extract the lubricating fluid to lubricate the piston mechanism through negative pressure generated by reciprocating motion of the compressor during operation and can automatically implement automatic oil supply operation without an extra oil pump device, the internal structure of thecompressor is simplified, and the operation stability of the compressor is improved

Compressor and refrigeration equipment

The invention discloses a compressor and a refrigerating device and belongs to the technical field of compressors. The compressor comprises a compressor body. An air cylinder, a piston mechanism arranged in the air cylinder and an oil storage part are arranged in the compressor body. The piston mechanism comprises a piston head and a piston rod. The oil storage part is used for storing lubricatingfluid. A first oil storage groove is formed in the outer wall of the piston rod. The compressor body is further provided with an oil suction pipeline. The oil suction end of the oil suction pipelinecommunicates with the oil storage part. The oil discharging end of the oil suction pipeline communicates with the inner wall of the air cylinder. When the piston mechanism conducts reciprocating compression motion in the axial direction of the air cylinder, the oil discharging end of the oil suction pipeline and the first oil storage groove can be switched between a communication state and a separation state. By means of the compressor, due to the oil storage groove of the piston mechanism and the oil suction pipeline communicating with the oil storage groove, the compressor can utilize negative pressure generated during the reciprocating motion of the compressor to automatically extract the lubricating liquid to lubricate the piston mechanism during running, the internal structure of thecompressor is simplified, and running stability of the compressor is improved.

Compressor and refrigerating device

The invention provides an oil pump assembly and a linear compressor comprising the same. The oil pump assembly comprises a cylinder body with an inner cavity, a piston and an elastic reset piece, wherein the piston is movably arranged in the inner cavity and divides the inner cavity into a first cavity body and a second cavity body; the cylinder body is provided with an oil inlet hole and an oil outlet hole which both communicate with the first cavity body; the elastic reset piece is arranged between the cylinder body and the piston; the elastic reset piece is arranged in the first cavity body, and the second cavity body is an empty cavity; or the elastic reset piece is arranged in the second cavity body, and the first cavity body is an empty cavity. According to the technical scheme, the problems that an oil pump of a linear compressor is complex in assembly process and high in cost in the prior art are solved.

Oil pump assembly and linear compressor comprising same

The utility model provides a rotor of a linear compressor motor. The rotor comprises a rotor frame, and an annular magnet which is fixed on the rotor frame. The annular magnet is formed by jointing at least two magnet components together, and the jointed portions between the annular magnet and the rotor frame and the outer periphery of the annular magnet are adhered with a carbon fiber layer respectively for fixation. The utility model further provides a motor used in a linear compressor, and a linear compressor. By using the magnet ring formed by assembling magnet components, the machining and manufacturing of the magnet ring can be facilitated. Meanwhile, the magnet components are fixed by winding a carbon fiber layer to form the annular magnet, so the machining and manufacturing of the magnet ring can be facilitated, and the advantage of high molding efficiency can be realized.

Rotor, and motor and linear compressor using the same

The invention discloses a linear compressor and a motor fixing structure thereof. The motor fixing structure comprises an inner stator, an air cylinder and a flange, and the inner stator is clamped on the front flange through a clamping portion. By the motor fixing structure, the clamping portion arranged on the front flange functions in positioning the inner stator to enable the inner stator to be fixed without dependence on the air cylinder, when the inner stator is fixed, the air cylinder and the inner stator are spaced by a certain distance without being in close contact, and accordingly loss generated by the magnetic field through the air cylinder is reduced; all the front flange, the air cylinder and the boss are made of non-magnetic materials, so that magnetic loss can be reduced greatly integrally.

Linear compressor and motor fixing structure thereof

The invention provides a stator lamination fixing structure and method, a motor and a linear compressor. Stator laminations are arranged in a cylindrical shape. Protrusions, which extrude towards the external side along an axial direction and/or a radial direction of the cylindrical shape, are formed on the stator laminations. Fixing pieces, which are corresponding to the protrusions, are configured on the end surface and/or the side surface of the cylindrical shape of the stator laminations, and the fixing pieces are provided with through holes for penetration of the protrusions. Loosening of the stator laminations can be prevented via coordination of the through holes and the protrusions, and stator lamination sets can be fixed and overall firmness of stators can be enhanced via the coordination of the protrusions and the through holes.

Stator lamination fixing structure and method, motor and linear compressor

The invention provides an oil supply structure for a compressor motor and a compressor. The oil supply structure is reliable in action and can guarantee an oil supply effect. The invention also provides an oil supply method for a linear compressor. The oil supply method comprises the following steps of providing an oil supply device comprising an oil cylinder and an oil supply piston arranged in the oil cylinder; fixing one of the oil cylinder and the oil supply piston on a shell of the linear compressor; and enabling the other one of the oil cylinder and the oil supply piston to be in linkage with a motor body. The motor body and the shell move relatively by reciprocating motion of the linear compressor; the oil cylinder and the oil supply piston are driven to move relatively; and the oil supply device supplies oil through an oil supply pipe connected with the oil supply device.

Oil supply method for linear compressor and oil supply mechanism

The invention discloses a stator structure and a linear compressor employing the same. The stator structure comprises at least one inner stator and at least one outer stator, wherein the inner stator is disposed in the outer stator, and the interior of the outer stator is provided with a coil. The inner stator comprises at least one inner stator group, and the inner stator group is formed by the stacking of at least one sheet-shaped inner ring body. The inner stator group forms a hollow inner cylinder structure. The inner wall of the hollow inner cylinder structure of the inner stator is provided with at least one groove. The interior of the hollow inner cylinder structure of the inner stator is provided with a positioning ring along the groove. The stator structure can enable the size of gaps between stacked stators to be reduced, greatly reduces the loss of magnetic flux in a radial direction, obtains very high motor efficiency, also can enable the layout of the whole motor to be reasonable, and is high in reliability.

Li Hengguo

Papers

Rotor, and motor and linear compressor using the same

Linear compressor and motor fixing structure thereof

Stator lamination fixing structure and method, motor and linear compressor

Oil supply method for linear compressor and oil supply mechanism

Stator structure and linear compressor employing same