8results about How to "Improve motor efficiency" patented technology

The utility model belongs to the technical field of compressors, and particularly discloses a permanent magnet motor stator assembly of a mixed magnetic conductive material for a compressor and a refrigeration compressor. The whole permanent magnet motor stator assembly adopts a sandwich type structure, the outer layer is the stator iron core made of the silicon steel material, and the silicon steel material provides appearance support; the mounting grooves are formed in the connecting positions of the stator yoke and the stator teeth, the filling blocks in the mounting grooves are made of amorphous materials, the shape is simple, and stamping and machining are easy. In addition, packaging sheets are arranged at the two ends of the stator core, so that the amorphous material is prevented from being damaged due to external collision. According to the permanent magnet motor stator assembly of the utility model, the amorphous material and the silicon steel material are adopted as the mixed magnetic conductive material, so that the iron core loss of the tooth yoke part in the permanent magnet motor stator assembly can be reduced, and therefore, the motor efficiency can be improved, performance improvement can be ensured to the greatest extent, and the assembly can be compatible with the existing mechanical structure; and rapid use and mass production are facilitated.

The application provides a rotor core and a motor with the same. The rotor core is formed with a plurality of magnetic poles which are arranged at intervals along the circumference of the rotor core. The outer periphery of the cross section of each magnetic pole comprises a plurality of arc lines and a plurality of straight lines, and the plurality of arc lines and the plurality of straight lines are arranged alternately. The air gap magnetic field between the stator core and the rotor core is optimized, the torque ripple is reduced, the motor demagnetization resistance and the motor efficiency are improved. The stator tooth is opposite to the magnetic pole and comprises a tooth body and a tooth shoe. The tooth shoe comprises two tooth shoes which are arranged at the two radial sides of the tooth body respectively. The tooth body corresponds to the first arc line, and the tooth shoe corresponds to the straight line. The magnetic field in the region between the tooth body and the first arc line is the strongest, the magnetic field in the region between the stator slot and the second arc line is the weakest, and the magnetic field in the region between the tooth shoe and the straight line is in the middle. The position and size of the straight line can be adjusted to adjust the magnetic field in the region. The motor iron loss is greatly reduced, the magnetic steel utilization rate is improved, and the motor harmonic loss is reduced.

The utility model provides a plug gauge tool which can be arranged in an inner circle of a stator, the plug gauge tool comprises a first tool split body, a second tool split body and a locking part, the first tool split body and the second tool split body are assembled and spliced to form a tool part, and the locking part is assembled in the tool part; the locking part has a locking state, and when the locking part is in the locking state, the locking part exerts force outwards on the tool part in the radial direction of the stator so that the tool part can abut against and be supported on the inner circumferential face of the stator. According to the utility model, in the process from sleeving the hot jacket shell on the stator to cooling, the plug gauge tool always supports the stator from the inside, so that the extrusion of the shell on the stator can be reduced, the deformation degree of an air gap between the stator and the rotor can be reduced, and finally, the motor efficiency, the torque ripple, the electromagnetic noise and the like are obviously improved.

This utility model discloses a fluid pump control box and its mounting structure with the pump body, belonging to the field of pump units. In the control box of this utility model, a mounting recess area is provided on the bottom wall of the box body, recessed towards the box cover. The mounting recess area is used for the mounting end of the pump base to fit into. The shaped wall surface of the mounting recess area forms an upwardly protruding inner boss in the inner cavity of the box body. A low mounting area is formed between the inner boss and the box cover, and a high mounting area is formed between the area outside the inner boss and the box cover. The low mounting area is used for the distribution of small-volume components on the power control board, and the high mounting area is used for the distribution of large-volume components on the power control board. This utility model breaks through the limitations of the traditional stacking mode of the control box and pump base, helping to reduce the overall size of the pump and improve space adaptability and installation convenience.

The utility model discloses a speed regulating mechanism for a clothes dryer motor and the clothes dryer motor, the speed regulating mechanism for the clothes dryer motor comprises one or more groups of clutch speed regulating units, and the plurality of groups of clutch speed regulating units are connected in sequence; the clutch speed regulation unit comprises a sun gear and a limiting cylinder, a first fluted disc and a second fluted disc are arranged on the sun gear and the limiting cylinder respectively, the sun gear and the limiting cylinder are connected with each other through a planet gear, the two sides of the planet gear are meshed with the first fluted disc and the second fluted disc respectively, and a driving disc is connected to the exterior of the planet gear; the sun gear is used for driving the planet gear to rotate after rotation, and the limiting cylinder is used for circumferentially limiting the planet gear; and the planet gear is used for forming circumferential rotation under the control of the sun gear and the limiting cylinder and driving the driving disc to rotate. The transmission device has the characteristics of good transmission effect and high motor efficiency.

This utility model relates to a booster pump motor, including a housing, an upper cover, and a bottom cover. A rotating shaft is inserted through the housing, upper cover, and bottom cover. A rotor is located in the center of the housing, and a magnet is installed outside the rotor. A control board is located at the upper end of the bottom cover. A commutator is located in the center of the control board and is axially connected to the rotating shaft. A positive brush group and a negative brush group are provided at the upper end of the control board corresponding to the outer edge of the commutator. A wire connected to the control board passes through the bottom cover. By placing the control board between the brushes and the commutator, and by setting the four brushes into two groups of positive and negative poles, and connecting the wires of the two groups of brushes to the center line area of ​​the control board, the whole machine can be stabilized, thereby improving the motor efficiency.

This invention discloses a compressor housing and a rotary compressor. The compressor housing is made of an iron-nickel austenitic alloy, the composition of which includes nickel, iron, chromium, manganese, and titanium. The microstructure of the iron-nickel austenitic alloy consists of equiaxed austenitic grains. This invention proposes a new housing material, namely, using an iron-nickel austenitic alloy to prepare the compressor housing. Compared with commonly used cold-rolled steel for housings, this iron-nickel austenitic alloy is non-magnetic, and therefore will not generate induced current with the stator core. This avoids increased iron loss and solves the problem of weak magnetic permeability in compressor housing materials, thereby improving the efficiency of the motor in the compressor.

This utility model discloses a modular stator structure, characterized by comprising several stator core blocks arranged in an I-shape, each composed of a yoke and stator teeth, forming an integral stator core. Stator slots are formed between adjacent stator core blocks, and the stator teeth are T-shaped, with slot openings communicating with the slots between adjacent teeth. The structure also includes a filler for changing the number of stator slots without altering the stator core diameter. This utility model utilizes several stator core blocks assembled into an integral stator core, with each block composed of a yoke and stator teeth. The entire stator core is modularly assembled, which effectively improves utilization, saves silicon steel material, and reduces costs when pressing silicon steel sheets using a press.