480 results about "Rotary compressor" patented technology

The utility model discloses a rotary compressor and refrigeration equipment, and relates to the technical field of compressors, the rotary compressor comprises a motor, the motor comprises a stator and a rotor, the stator comprises a stator iron core and a stator winding, the stator iron core comprises an annular yoke part and a plurality of tooth parts arranged in the yoke part, the plurality of tooth parts are spaced along the circumferential direction of the yoke part, and the stator winding is arranged in the yoke part; a stator groove is formed between every two adjacent tooth parts, the stator winding is wound in the stator grooves, and the rotor comprises a rotor iron core; the pump body part comprises a crankshaft, an upper bearing and a cylinder; the number of the stator grooves is Q, the number of poles of the rotor is P, the maximum outer circle contour radius of the rotor core is R1, the maximum outer circle contour outer diameter is D1, D1 = 2 * R1, the outer diameter of the part, matched with the upper bearing, of the crankshaft is D2, GCD (Q, P) is the largest common divisor of Q and P, and GCD (Q, P) is larger than or equal to # imgabs0 # 5 and smaller than or equal to 6. The rotary compressor disclosed by the utility model is beneficial to improving the energy efficiency of the rotary compressor and reducing the electric energy consumption during operation.

The embodiment of the utility model discloses a motor, a rotary compressor and refrigeration equipment, the motor is characterized in that a rotor is installed in a stator, the stator comprises a stator iron core and a stator winding, the stator iron core comprises a yoke part and a plurality of tooth parts, the yoke part is annular, the plurality of tooth parts are distributed at intervals in the circumferential direction of the yoke part, and the stator winding is wound on the stator iron core. Two adjacent tooth parts and the yoke part jointly define a stator groove, and the stator winding is arranged in the stator groove; wherein the maximum distance between the outer wall of the yoke part and the circle center of the stator is R1, the maximum distance between the bottom of each stator groove and the circle center of the stator is R2, the number of the stator grooves is Q, and the number of poles of the rotor is P. The motor provided by the embodiment of the utility model can improve the structural strength of the motor, ensure the operation reliability of the motor, prolong the service life of the motor, and improve the reliability of the motor. The noise generated during the operation of the motor is reduced, the user experience can be improved, the use effect is better, and the application range is wider.

The utility model discloses a rotary compressor and refrigeration equipment, the rotary compressor comprises a shell, a motor and a compression mechanism, the motor and the compression mechanism are both arranged in the shell, the motor comprises a stator and a rotor, the compression mechanism comprises a crankshaft, and the crankshaft is connected with the rotor; the rotary compressor meets the following conditions: 5 < = GCD (Q, P) < = 6; q is the number of slots of the stator, P is the number of poles of the rotor, D2 is the inner diameter of the stator, D1 is the outer diameter of the stator, T1 is the thickness of a stator core of the stator, and d is the diameter of the crankshaft. According to the rotary compressor provided by the utility model, the slot number Q of the stator, the pole number P of the rotor, the outer diameter D1 of the stator, the inner diameter D2 of the stator, the thickness T1 of the stator iron core and the diameter d of the crankshaft are set according to reasonable ratios, so that the operation stability and the energy efficiency of the rotary compressor are improved.

The invention discloses a rotary compressor and a refrigeration cycle device including the same. The rotary compressor includes a housing, a main bearing, a sub-bearing, a cylinder, a roller, a vane, and an injection channel provided in at least one of the main bearing, the sub-bearing, and the cylinder. A respective compression chamber may be in communication with the respective compression chamber after a compression start angle of the respective compression chamber. As a result, it is possible to minimize leakage of the injected refrigerant toward the suction port side while ensuring the maximum injection section.

The utility model belongs to the technical field of rotor type compressors, and discloses a main bearing-crankshaft structure, a pump body assembly, a compressor and an air conditioner, the main bearing-crankshaft structure comprises a crankshaft and a main bearing, a long shaft part of the crankshaft is sleeved in a main bearing inner hole of the main bearing in a matched and penetrating manner; the main bearing inner hole comprises a straight hole section and a micro taper hole section which are axially communicated, and the micro taper hole section is arranged far away from one side of the main bearing large end face of the main bearing; the diameter of an inlet of the micro taper hole section is the same as that of the straight hole section, and the diameter of an outlet of the micro taper hole section is larger than that of the inlet of the micro taper hole section; according to the utility model, a deformation avoiding space is formed between the long shaft part and the matched outer circle of the upper end part of the inner hole of the main bearing so as to accommodate the bending deformation of the long shaft part; and secondly, the oil film strength between the upper end part of the inner hole of the main bearing and the long shaft part is increased, the abrasion between the long shaft part and the upper end part of the inner hole of the main bearing is effectively reduced, and the operation reliability of the compressor pump body assembly is greatly improved.

The invention relates to the technical field of measuring and matching equipment, solves the problem that compressor matching equipment is insufficient in automation degree, and particularly discloses a rotary piston, air cylinder and blade sorting assembly line and a sorting and matching method.The rotary piston, air cylinder and blade sorting assembly line comprises an air cylinder sorting device, a piston sorting device, a blade sorting device and a component matching discharging mechanism; the component matching discharging mechanism is arranged below the discharging ends of the air cylinder sorting device, the piston sorting device and the blade sorting device. The air cylinder sorting device comprises an air cylinder feeding mechanism and an air cylinder measuring mechanism connected to the discharging end of the air cylinder feeding mechanism. The piston sorting device comprises a piston feeding mechanism, a piston measuring mechanism and a piston temporary storage warehouse which are connected in sequence; the blade sorting device comprises a blade feeding mechanism, a blade measuring mechanism and a blade temporary storage warehouse which are connected in sequence. The device is used for model selection and pairing of air cylinders, pistons and blades in rotary compressor production, the automation process is smoothly linked, and the working efficiency is high.

The utility model discloses a rotor compressor silencer which comprises a silencer body, a plurality of convex petals and a plurality of concave petals are distributed on the silencer body, high-pressure pulsating gas flowing out of an air cylinder sequentially flows through the convex petals and the concave petals of the silencer, due to the change of the volumes of inner cavities of the convex petals and inner cavities of the concave petals, when the high-pressure pulsating gas flows through, propagation loss can be generated, and gas noise is reduced. A center hole is formed in the center of the silencer body, and the silencer is installed on an upper bearing of an upper shaft of a rotor compressor crankshaft in a sleeving mode through the center hole. At least one group of air outlet holes are formed in the convex flaps, and high-pressure pulsating gas is discharged after the direction of the high-pressure pulsating gas is changed; inwards-concave reinforcing ribs are arranged on the concave petals, so that the size of an inner cavity of the concave petals is further reduced, the silencing capacity of the concave petals is enhanced, meanwhile, the rigidity of the silencer is improved, and sound radiation of the silencer is reduced.

The present invention provides a rotary compressor that can raise the rollers to an appropriate height during operation. [Solution] The lower end surface of the roller (36) of the rotary compressor (1) has a horizontal surface (36a) parallel to the upper surface of the rear head (42), and an inclined surface (36b) that extends continuously from the outer circumference of the horizontal surface (36a) to the outer circumference surface (36o) of the roller (36), and is inclined so as to be located upward as it moves radially outward.

To suppress vibration of an accumulator caused by operation of a compressor.SOLUTION: A compressor unit includes a compressor (1) and an accumulator (2) adjacent to the compressor (1), and the compressor (1) includes a first casing (10) having a cylindrical first body portion (11), an electric motor (20) accommodated in the first casing (10), a drive shaft (70) driven by the electric motor (20), and a rotary compression mechanism (15) that compresses a fluid. An accumulator (2) has a second casing (60) having a tubular second body section (61) horizontally adjacent to the first casing (10), and also has outlet pipes (65a, 65b) extending from the lower part of the second casing (60) and connected to the first body section (11), wherein a first eigenvalue (s1) in the rolling direction of the accumulator (2) does not overlap with a value of n·N (where N is an integer) which is an integer multiple of the maximum rotational speed (n) of a compressor (1).SELECTED DRAWING: Figure 2

A rotary compressor is disclosed. The rotary compressor comprises a casing, a cylinder, a bearing plate, a roller, vanes and a plurality of pressing passages, wherein the plurality of pressing passages penetrate the discharge side of a vane slot from the outer peripheral surface of the cylinder, and can be spaced apart from each other in the height direction of the vane slot. Therefore, each of the pressing passages is formed at upper and lower ends or near both ends of the vane corresponding to both ends of the vane slot in the height direction, so as to ensure the straightness of the vane such that the vane can be more stably supported.

The present invention provides a flange, a pump body assembly, and a rotary compressor, wherein the flange includes a flange body, the flange body having a through hole penetrating the flange plate and the shaft neck, a flexible annular groove configured on the second end face of the flange body surrounding the opening of the through hole, the flexible annular groove comprising a first annular wall and a second annular wall spaced apart from each other, one of the first annular wall and the second annular wall being an integral structure with the flange body, and the other of the first annular wall and the second annular wall being an assembled structure with the flange body. In the present invention, one of the first annular wall and the second annular wall is connected to the flange body by assembly, and then forms the flexible annular groove together with the other annular wall integrally formed with the flange body. The assembly can form a flexible annular groove of smaller width, without requiring direct machining to form the flexible annular groove of smaller width, effectively reducing the difficulty and cost of machining the flexible annular groove and improving the machining efficiency of the flexible annular groove.

The invention relates to a screw compressor (300), comprising a compressor block having a compressor housing (312), wherein two compressor screws (312a) are received and can be rotated in the compressor housing (312), the compressor housing (312) has an upstream inlet (314) for gas to be compressed and a downstream outlet (318) for compressed gas and, during an operation of the screw compressor (300), the gas is conveyed from the inlet (314) to the outlet (318), the pressure of the gas being increased by reducing the size of a movable chamber (320), which is formed by the compressor screws (312a), in the flow direction after the chamber has passed a control edge (322). According to the invention, the compressor housing (312) has a separation between a downstream high-temperature region (324) and an upstream low-temperature region (326), a material with a reduced thermal conductivity compared to the high-temperature region (324) being present at least in the region of the separation.

An electric rotary compressor (1) comprises a housing (10), an electric motor (15), and a compression mechanism (20) that compresses a coolant. The compression mechanism (20) has a rotating shaft (30) and an outer circumferential surface (21). The housing (10) has an inner circumferential surface (12). The electric rotary compressor (1) further comprises an outlet pressure region (2) defined between the inner circumferential surface (12) and the outer circumferential surface (21). The outlet pressure region (2) has an oil storage chamber (120), an outlet chamber (130), and a central chamber (140). A space between the oil storage chamber (120) and the central chamber (140) is constricted by a first convex section (100). A space between the central chamber (140) and the outlet chamber (130) is constricted by a second convex section (101).

An apparatus includes a semi-enclosed compressor housing, an electrically driven dual cylinder rolling piston rotary compressor assembly housed in the housing, motor driven electronics, and an auxiliary housing. The auxiliary housing defines a semi-closed refrigerant inlet compartment having a wall. The auxiliary housing also defines an electronics compartment that shares a wall with the inlet compartment but is semi-enclosed separate from the inlet compartment. The compressor housing is semi-closed coupled with and in fluid communication with the inlet compartment. The electronics compartment accommodates electronics.

The invention relates to the technical field of compressors, in particular to a compressor balance block, a motor assembly comprising the compressor balance block and a rotary compressor comprising the motor assembly. The compressor balance block comprises an installation ring and a balancing weight arranged on the installation ring, the installation ring is used for being connected with a motor rotor, the interior of the installation ring is through in the axial direction, the balancing weight is located on the peripheral side of the installation ring, and a gap is formed between the balancing weight and the installation ring. The balancing weight and the mounting ring are relatively independent, the balancing weight is only connected and assembled by the mounting ring and the motor rotor, and mounting holes do not need to be formed in the balancing weight, so that the sizes of the balancing weight and the mounting ring can be correspondingly reduced, and the weight of the balancing weight of the compressor is reduced; meanwhile, the distance of the balancing weight deviating from the center of the mounting ring is increased, namely, the eccentricity of the balancing weight and the center of the mounting ring is increased, and therefore the considerable balance amount and the vibration reduction effect can still be achieved under the condition that the weight of the balancing weight is reduced.

A fluid compressor system has a scavenge loss limiter that increases the efficiency of the fluid compressor system by reducing the compressed working fluid recirculated into the airend through a scavenge flow. The scavenge loss limiter includes a scavenge hole positioned at a discharge end face of a rotor cavity of the compressor housing. As a rotor of the compressor system rotates, the rotor may intermittently restrict the free-flowing scavenge flow returning from a lubricant separation tank. The rotor may be a male rotor having a plurality of male lobes. As the discharge end clearance between the rotor and the discharge end face is tightly controlled and monitored, a better control of the scavenge flow returning to the rotor cavity is achieved.

A rotary compressor (1) and an apparatus using the same are provided. A compression mechanism section (30) has a cylinder (31), a piston (32) disposed in the cylinder, and a vane (33) partitioning the cylinder. A shaft (40) has an eccentric portion (42). A vane groove (36) in which the vane is disposed is formed in the cylinder (31). The eccentric portion (42) is disposed in the cylinder. The piston (32) is fitted to the eccentric portion (42). A cylindrical groove (32a) having a circular arc angle α of more than 180° is formed in the piston (32). A cylindrical portion (33b) is formed in an end portion of the vane (33) so as to be disposed in the cylindrical groove (32a). The vane (33) operates without leaving the piston (32). The cylindrical groove (32a) is easily formed in the piston (32) by setting the Vickers hardness of the surface of the piston (32) to Hv400 or less. The piston (32) and the vane (33) have high wear resistance.

The utility model discloses a motor, a rotary compressor and refrigeration equipment, the motor comprises a stator, the stator comprises a plurality of stator punching sheets, the stator punching sheets are provided with first connecting buckles, and the stator punching sheets are connected with adjacent stator punching sheets through the first connecting buckles; the rotor is arranged on the radial inner side of the stator, and the stator is suitable for driving the rotor to rotate; the motor meets the formula # imgabs0 #, L is the minimum radial distance between the first connecting buckle and the circle center of the stator, R is the radius of the maximum outer circle contour of the stator, and the number of poles of the rotor is 2P. According to the motor provided by the utility model, the minimum radial distance L between the first connecting buckle and the circle center of the stator, the number of poles 2P of the rotor and the radius R of the maximum excircle profile of the stator punching sheet are all in reasonable value ranges, so that the efficiency of the motor is effectively improved while the structural strength of the stator core, the stability of the rotor and the power of the motor are ensured.

The present invention provides a rotary compressor comprising: a casing; a cylinder having a compression space within the inner peripheral surface thereof; a roller rotatably provided in the compression space of the cylinder; a drive motor including a stator and a rotor; and a first balance weight provided at one side on the upper surface of the rotor and a second balance weight provided at the other side on the lower surface of the rotor, wherein the first and second balance weights have an inner peripheral surface and an outer peripheral surface formed as a curved surface and, in the circumferential direction, the value of the ratio of the length of the inner peripheral surface of the first balance weight to the length of the outer peripheral surface thereof is less than the value of the ratio of the length of the inner peripheral surface of the second balance weight to the length of the outer peripheral surface thereof.

The present application relates to the field of air conditioners, in particular to a double-cavity rotor compressor and an air conditioner; the double-cavity rotor compressor comprises: an inner cylinder having an outer peripheral wall surface; an outer cylinder having an inner peripheral wall surface, the outer cylinder being coaxially sleeved outside the inner cylinder; a ring wall being sleeved outside the inner cylinder and located inside the outer cylinder, the ring wall comprising an inner ring surface and an outer ring surface; the inner peripheral wall surface is tangent to the outer ring surface, and an outer compression cavity is formed between the inner peripheral wall surface and the outer ring surface; the outer peripheral wall surface is tangent to the inner ring surface, and an inner compression cavity is formed between the outer peripheral wall surface and the inner ring surface; a sliding vane is arranged between the inner peripheral wall surface and the outer peripheral wall surface and passes through the ring wall, the sliding vane comprising an outer end and an inner end, the outer end being in sealed sliding contact with the inner peripheral wall surface, and the inner end being in sealed sliding contact with the outer peripheral wall surface; the sliding vane can rotate with the ring wall and can slide radially in the ring wall, so as to solve the technical problem of separation of the sliding vane from the cylinder during operation of the sliding vane compressor.

A rotary compressor (1) includes a compression mechanism (30) having a cylinder (31), a piston (32) disposed in the cylinder (31), and vanes (33) partitioning the inside of the cylinder (31), a shaft (40) having an eccentric portion (42) disposed in the cylinder (31), a vane groove (36) in which the vanes (33) are disposed, the eccentric portion (42) engaging with the piston (32), and the vanes (33) operating without leaving the piston (32). By bringing the refrigerator oil and the working fluid into a two-phase separated state under a temperature condition of 25 DEG C, lubrication performance can be ensured and a good sliding state can be maintained even if liquid compression operation cannot be avoided.

This invention provides a pump body assembly and a rotary compressor to improve volumetric efficiency and reduce exhaust noise. The pump body assembly includes: a front-stage cylinder with a first exhaust port; a rear-stage cylinder with a first intake port; a connecting component having a connecting channel; one end of the connecting channel communicating with the first exhaust port and the other end communicating with the first intake port; and a first movable component disposed within the connecting channel. The first movable component includes a first movable member movably disposed along the axial direction of the connecting channel, allowing the connecting channel to have a connected state and a disconnected state, thereby connecting or disconnecting the first exhaust port and the first intake port.

A rotary compressor and a refrigeration apparatus, the rotary compressor comprising an electric motor and a pump body component. The electric motor comprises a stator and a rotor, wherein the stator comprises a stator core and stator windings, and the rotor comprises a rotor core; the stator core comprises an annular yoke portion and a plurality of tooth portions arranged in the yoke portion; a stator slot is formed between every two adjacent tooth portions, and the stator windings are wound within the stator slots. The pump body component comprises a crankshaft, an upper bearing and a cylinder. The number of stator slots is Q, the number of poles of the rotor is P, the maximum outer circular contour radius of the rotor core is R1 and the maximum outer circular contour outer diameter is D1, where D1=2*R1, the outer diameter of the part of the crankshaft that engages with the upper bearing is D2, and GCD(Q, P) is the greatest common divisor of Q and P, satisfying: formula (1), formula (2) and formula (3).

The invention discloses a coating process for a rotor compressor, a coating and the rotor compressor. The coating process comprises the following steps: plating a phosphating coating on the surfaces of a rolled plate and a cold-rolled plate: electroplating the surfaces of the hot-rolled plate and the cold-rolled plate compressor to form a zinc-manganese-cobalt-copper multi-element phosphating coating; high-edge paint electrophoresis is conducted, specifically, the high edge is attached to the zinc-manganese-cobalt-copper-containing multi-element phosphating coating of the compressor through an electrophoretic coating technology, and after a coating film is formed through electrophoresis, cleaning and curing are conducted to form a firm high-corrosion-environment-resistant paint film; according to the coating for the rotor compressor, the coating technology for the rotor compressor is applied, the zinc-manganese-cobalt-copper multi-element phosphating coating is arranged on the outer surface of the compressor, and the high edge paint is attached to the zinc-manganese-cobalt-copper multi-element phosphating coating.

The invention discloses a rotary compressor and refrigeration equipment, and relates to the technical field of compressors, the rotary compressor comprises a motor, the motor comprises a stator and a rotor, the stator comprises a stator iron core and a stator winding, the stator iron core comprises an annular yoke part and a plurality of tooth parts arranged in the yoke part, the tooth parts are spaced in the circumferential direction of the yoke part, and the stator winding is arranged in the yoke part; a stator groove is formed between every two adjacent tooth parts, the stator winding is wound in the stator grooves, and the rotor comprises a rotor iron core; the pump body part comprises a crankshaft, an upper bearing and a cylinder; the number of stator grooves is Q, the number of poles of the rotor is P, the maximum outer circle contour radius of a rotor core is R1, the maximum outer circle contour outer diameter is D1, D1 = 2 * R1, the outer diameter of the portion, matched with the upper bearing, of the crankshaft is D2, GCD (Q, P) is the largest common divisor of Q and P, and GCD (Q, P) is larger than or equal to 5 and smaller than or equal to 6. According to the rotary compressor, the energy efficiency of the rotary compressor is improved, and the electric energy consumption of operation is reduced.

This disclosure provides a compressor that suppresses noise generation by suppressing variations in the gap between the muffler and the bearing, for bearings having discharge holes. [Solution] A rotary compressor comprising: a shaft extending in a first direction; a motor that drives the shaft; a first bearing that supports the shaft and has a discharge hole through which compressed refrigerant is discharged; a cylinder that forms a cylinder chamber inside; a roller fixed to the shaft and rotating eccentrically in the cylinder chamber; and a muffler arranged to cover the discharge hole, wherein the motor, the muffler, the first bearing, and the cylinder are arranged in order along the first direction; the first bearing has a boss portion that supports the shaft and protrudes toward the muffler; the muffler has an opening through which the boss portion passes; and the positioning structure determines the position of the muffler relative to the first bearing such that the first bearing or the muffler has a gap with the opening around the entire circumference in the outer direction of the boss portion.

The first oil supply passage (60) has a first axial passage (61) disposed radially offset from the center of rotation of the drive shaft (25) and extending in the axial direction from the storage space (36), and a first connection passage (62) connecting the first axial passage (61) and the sliding surface of the first sliding member (65). The second oil supply passage (70) has a second axial passage (71) disposed radially offset from the center of rotation of the drive shaft (25) and extending in the axial direction from the storage space (36) at a position away from the first axial passage (61), and a second connection passage (72) connecting the second axial passage (71) and the sliding surface of the second sliding member (75).

To provide a rotary compressor that ensures sufficient compressor capacity and resistance to high-pressure loads on the medium to be compressed. [Solution] In a rotary compressor (100) housed in a sealed container (C) and having a compression section (30) for compressing a medium to be compressed and a drive section (40) for driving the compression section (34), the sealed container (C) comprises a hollow first shell (10) having an opening that is open on at least one axial side, and a second shell (22) that closes the opening, wherein the diameter of the first shell (10) on one axial side that houses at least a part of the compression section (30) is larger than the diameter of the other axial side that houses at least a part of the drive section (40), and the axial side portion of the first shell (22) that houses at least a part of the compression section (30) is covered by the second shell (22) from the radially outside, and the first shell (10) and the second shell (22) are in contact with each other with a radial overlap to form a cover section (50).

This disclosure provides a rotary compressor that allows lubricating oil to flow smoothly from the top to the bottom inside the casing. [Solution] A rotary compressor comprising: a shaft extending along a first direction; a cylinder forming a cylinder chamber inside; a roller fixed to the shaft and rotating eccentrically in the cylinder chamber; an upper bearing supporting the shaft and having a first discharge port for discharging compressed refrigerant; a muffler covering the first discharge port and having a second discharge port for discharging the refrigerant discharged from the first discharge port; a rotor to which the shaft is fixed; a stator; a motor for rotating the shaft; and a first cylindrical member attached to the upper bearing, wherein the stator comprises a coil, a stator core, and an insulator insulating the space between the coil and the stator core, and the first member is provided outside the second discharge port with respect to the radial direction of the shaft in a view from the first direction, and the upper end of the first member is provided above the lower end of the insulator.

The application discloses a rotary compressor and a refrigeration equipment, the rotary compressor comprises a shell, a motor and a compression mechanism, the motor and the compression mechanism are arranged in the shell, the motor comprises a stator and a rotor, the compression mechanism comprises a crankshaft, the crankshaft is connected with the rotor, the rotary compressor satisfies 5<=GCD(Q,P)<=6; wherein, Q is the slot number of the stator, P is the pole number of the rotor, D2 is the inner diameter of the stator, D1 is the outer diameter of the stator, T1 is the thickness of the stator core of the stator, and d is the diameter of the crankshaft. The rotary compressor provided by the application adopts reasonable ratio settings for the slot number Q of the stator, the pole number P of the rotor, the outer diameter D1 of the stator, the inner diameter D2 of the stator, the thickness T1 of the stator core and the diameter d of the crankshaft, thereby improving the operation stability and energy efficiency of the rotary compressor.