1322 results about "Scroll compressor" patented technology

The invention provides a permanent magnet motor and a variable-frequency scroll compressor, and relates to the technical field of scroll compressor design and manufacturing, and the permanent magnet motor comprises a stator iron core and a rotor iron core; the stator iron core comprises stator slots which are uniformly distributed along the circumference, copper windings are embedded in the slots, stator yokes which are uniformly distributed are arranged outside the bottom of each slot, each stator yoke is provided with an arc-shaped long slot, stator teeth are arranged between every two adjacent stator slots, and the tops of the stator teeth are sunken to form through-flow slots; the rotor core is internally provided with magnetic steel grooves which are uniformly distributed, two same first magnetic isolation grooves are arranged between two adjacent magnetic steel grooves, magnetic steel is arranged in the magnetic steel grooves, and the top of each magnetic steel is provided with two second magnetic isolation grooves which are symmetrically distributed. The outer side radius Rs1 of the stator core, the inner side radius Rs2 of the stator core and the axial length Lis of the stator core meet the following conditions: 1.282 < = Lis / (Rs1-Rs2) < = 2.778, and 34 < = Rs1-Rs2 < = 39 mm. The power density of the motor can be increased, the cost is reduced, the efficiency is improved, and the harmonic content is reduced so as to suppress torque ripple.

The invention provides a permanent magnet motor and a scroll inverter compressor, and relates to the technical field of scroll compressor design and manufacturing, and the permanent magnet motor comprises a stator iron core and a rotor iron core; the stator core comprises stator teeth and a stator yoke which are uniformly distributed along the circumference, fluid through grooves are formed in the outer side of the stator yoke at the tops of the stator teeth, stator grooves are formed in two adjacent stator teeth and the stator yoke between the two stator teeth, and a plurality of strands of conductive circular enameled wires are embedded in each stator groove; the outer side of the rotor core is composed of linear segments and arcs, air grooves which are evenly distributed are formed in the rotor core, non-uniform magnetic isolation bridges are formed between the air grooves and the linear segments on the outer side of the rotor core, a certain distance is formed between every two adjacent air grooves, parallel magnetic conductive ribs are formed, and permanent magnets with the magnetic field directions changing alternately are embedded in the air grooves. A rivet hole, a lightening hole and a shaft hole are arranged close to the inner side of the rotor core. Therefore, the defined proportionality coefficient Ks is kept in a reasonable range, the power density of the motor can be increased, the cost is reduced, and the efficiency is improved.

The invention relates to the technical field of fault diagnosis, and discloses a scroll compressor thrust bearing fault diagnosis method and system based on artificial intelligence. The method comprises the following steps: acquiring an original vibration signal of the thrust bearing of the scroll compressor through a piezoelectric acceleration sensor array, and performing angle domain synchronization and modal decomposition on the original vibration signal to obtain a demodulated vibration signal; according to the demodulation vibration signal, extracting fault characteristic frequency spectrums of inner ring damage, outer ring crack, rolling body peeling and retainer deformation in the scroll compressor thrust bearing; extracting fault features from a time domain, a frequency domain and a time-frequency domain based on the fault feature frequency spectrum, and constructing a fault feature vector; and inputting the fault feature vector into an integrated learning model to carry out fault identification analysis to obtain a fault type and severity. According to the invention, the accuracy of fault diagnosis of the thrust bearing of the scroll compressor is improved.

The invention discloses a high-pressure type oil-free scroll compressor which comprises a compressor body composed of a first static scroll plate, a first dynamic scroll plate, a second dynamic scroll plate and a second static scroll plate, and the back face of the first dynamic scroll plate and the back face of the second dynamic scroll plate are arranged in an attached mode. The front face of the first orbiting scroll and the front face of the second orbiting scroll are meshed with the back face of the first static scroll and the back face of the second static scroll respectively, and the orbiting scrolls and the static scrolls are matched with each other to form a compression cavity. The scroll compressor further comprises four eccentric pins, an eccentric pin eccentric section is integrally formed in the middle of the outer surface of each eccentric pin, and the eccentric pin eccentric sections of the four eccentric pins are rotationally connected to the four corners of the first movable scroll plate and the four corners of the second movable scroll plate through movable plate bearings respectively. The oil-free scroll air compressor solves the problem that the exhaust pressure of the oil-free scroll air compressor is difficult to reach 1.2 Mpa or above.

The invention relates to a self-adaptive oil supply assembly, a scroll compressor and an air conditioner. The self-adaptive oil supply assembly comprises a shell, an upper sliding block and a lower sliding block, the shell is provided with an inner cavity, a top opening and a bottom opening, the top opening and the bottom opening communicate with the inner cavity, and the top opening, the inner cavity and the bottom opening jointly form an oil supply channel; a plurality of upper sliding blocks are arranged, each upper sliding block is elastically connected with the inner wall of the inner cavity in the radial direction, and when each upper sliding block is kept in a static state, the upper sliding blocks are spliced to form an upper notch with the diameter equal to that of the top opening; the lower sliding blocks are arranged below the upper sliding blocks, each lower sliding block is elastically connected with the inner wall of the inner cavity in the radial direction, and when the lower sliding blocks are kept in the static state, the lower sliding blocks are spliced together to form a lower notch with the diameter equal to that of the bottom opening.

A scroll compressor includes a rotary shaft, an eccentric shaft that is eccentric with respect to an axis of the rotary shaft, a bushing that receives the eccentric shaft, and a shaft balancer that rotates integrally with the rotary shaft. The bushing includes a bushing balancer. The shaft balancer includes a first section and a second section. When viewed in the axial direction of the rotary shaft, the first section is located on the same side of a second straight line as the center of gravity of the bushing balancer. The second straight line contains the center of gravity of the shaft balancer and the axis of the rotary shaft. The second section is located on an opposite side of the second straight line from the center of gravity of the bushing balancer. The stiffness of the first section is lower than the stiffness of the second section.

The invention relates to the technical field of compressors, and discloses a scroll compressor shafting dynamic balance simulation method, device and equipment and a medium, and the method comprises the following steps: carrying out fluid mechanics analysis based on a movable scroll plate model to obtain initial three-way gas force; performing dynamic analysis based on a scroll compressor model by taking the initial three-way gas force as a boundary condition to obtain a displacement result of a movable scroll plate; inputting the displacement result into the movable scroll plate model, updating the position and the motion state of the movable scroll plate, and carrying out fluid mechanics analysis again to obtain a new three-way gas force; and performing dynamic balance optimization on the scroll compressor model by taking the new three-way gas force as a boundary condition until a preset condition is met, and obtaining a target dynamic balance result. According to the technical scheme, the precision of dynamic balance simulation of the shaft system of the scroll compressor can be improved, and therefore the product reliability is improved through optimization of dynamic balance.

An electric scroll compressor configured to compress a refrigerant for use with a vapor injection system, is provided. The compressor includes refrigerant inlet and outlet ports and a vapor injection port. The housing includes a vapor injection cavity and at least one vapor injection channel which are integral therewith. A compression device includes a fixed scroll and an orbiting scroll. The orbiting scroll and the fixed scroll form compression chambers for receiving the refrigerant from the intake volume and compressing the refrigerant as the drive shaft is rotated about the center axis. The fixed scroll includes at least one vapor outlet aperture in communication with the at least one vapor injection channel for allowing vapor to enter a compression chamber formed between the fixed scroll and the orbiting scroll.

The invention relates to a compensation mechanism for a displacement machine according to the spiral principle, in particular a scroll compressor, wherein the compensation mechanism comprises a driveshaft with a central axis S and a compensation device, which comprises a cylindrical hub element that is mounted on a first eccentric pin of the driveshaft such that it can rotate about an axis of rotation P, and a compensation element which is mounted on the hub element such that it can rotate about an axis of rotation J and which has an eccentrically arranged slotted hole extending in the radial direction relative to the axis of rotation J, wherein a second eccentric pin of the driveshaft is guided in the slotted hole of the compensation element such that a Scotch yoke is formed between the slotted hole and the axis of rotation J of the compensation element. The invention also relates to a displacement machine comprising a compensation mechanism of this type.

The invention discloses a multistage closed-loop recovery method and system for industrial flue gas waste heat, and particularly relates to the technical field of waste heat recovery. The method comprises the following steps: predicting a process steam demand through a high-temperature section temperature parameter in flue gas monitoring data, and predicting a preheating medium demand based on a low-temperature section temperature parameter in the flue gas monitoring data; inputting the high-temperature-section demand prediction result and the low-temperature-section demand prediction result into a dynamic heat balance equation, calculating an optimized set point of a three-stage compressor unit, and adjusting the rotating speeds of a centrifugal compressor, a screw compressor and a scroll compressor by adopting a fuzzy PID (Proportion Integration Differentiation) algorithm; collecting temperature and flow data of secondary waste heat after the industrial equipment is reused, and generating secondary waste heat monitoring data; according to a compressor adjusting instruction and secondary waste heat monitoring data, the real-time opening degrees of the two-way stop valve and the electric adjusting valve are controlled, backflow of secondary waste heat to the interstage heat exchanger set is achieved, closed-loop recycling of industrial flue gas waste heat is completed through countercurrent flow heat exchange, and the waste heat recycling efficiency and the system stability are improved.

The invention discloses a compressor and a refrigerating system. The compressor comprises a machine shell, a motor and a pump body assembly. The shell is provided with an accommodating cavity; the motor is arranged in the containing cavity and comprises a rotor and a stator arranged on the periphery of the rotor in a sleeving mode. The pump body assembly is arranged in the containing cavity, the pump body assembly comprises a crankshaft, a static scroll plate, a movable scroll plate and a support, the crankshaft sequentially penetrates through the support, the movable scroll plate, the static scroll plate and the motor, the crankshaft comprises an eccentric section, and the movable scroll plate is arranged on the eccentric section in a sleeving mode; the outer diameter D of the stator and the outer diameter D1 of the eccentric section meet the relational expression that D / D1 is larger than or equal to 5 and smaller than or equal to 7. The problem that in the prior art, a crankshaft of a scroll compressor is low in reliability can be solved.

The invention provides a scroll compressor cross ring dynamic strain wireless measuring device, which relates to the technical field of compressor state monitoring and comprises a high-temperature-resistant strain gauge, a wire fixing system and a wireless sensor. Wherein the high-temperature-resistant strain gauges are respectively attached to stress sensitive areas of a static key, a ring beam and a movable key of the cross ring every time; the wire fixing system comprises a three-stage fixing structure formed by an adhesive, an internal wire, an external wire and an internal binding post; the three stages of fixing structures are a strain gauge end fixing structure, a lead transition section fixing structure and a binding post end fixing structure in sequence; the high-temperature-resistant strain gauge is connected with the wireless sensor through an internal wire, a binding post and an external wire, and continuous signal collection is achieved. By implementing operation according to the technical route, the impact load borne by the cross ring at the moment of starting and stopping of the compressor can be collected in a high-quality mode, data collection in a closed cavity is achieved, and an experimental basis is provided for subsequent strength design of the cross ring.

The invention relates to a dynamic compensation assembly of a compressor, a design method of the dynamic compensation assembly and the compressor, and relates to the field of scroll compressors. A dynamic compensation assembly of the compressor comprises a groove disc, a static scroll plate with static scroll teeth, a movable scroll plate with movable scroll teeth, four elastic compensation mechanisms installed in four bearing holes respectively, three crank throws and a crankshaft. When the movable scroll wrap and the static scroll wrap are in interference due to excessive meshing, the spring deforms and deviates from the first bearing, so that the pressure of the contact surface of the movable scroll wrap and the static scroll wrap is reduced while the movable scroll wrap and the static scroll wrap are kept fit in the working process, and the tooth surface abrasion is reduced; when the movable scroll wrap and the static scroll wrap are not fully meshed and a gap exists, under the action of revolution centrifugal force, the movable scroll plate drives the movable scroll wrap to be attached to the static scroll wrap, and excessive impact is avoided under the action of the spring, so that sealing is achieved, air leakage is avoided, the service life is effectively prolonged, and the working stability is effectively improved.

The utility model discloses a liquid return impact experiment device for a low-pressure cavity scroll compressor, and relates to the technical field of experiment equipment, in particular to the liquid return impact experiment device for the low-pressure cavity scroll compressor. One end of a first stop valve is connected with an exhaust pipeline of a tested compressor, and the other end of the first stop valve is connected with an inlet of a gas-liquid separator; an outlet of the gas-liquid separator is connected with a second stop valve; the second stop valve is connected with the electronic expansion valve through an electronic expansion valve pipeline; the electronic expansion valve pipeline is connected with a bypass pipeline in parallel, and a third stop valve is arranged on the bypass pipeline; an outlet of the electronic expansion valve is connected with a fourth stop valve; the fourth stop valve is connected with the liquid sight glass; and the liquid sight glass is connected with an air suction pipeline of the tested compressor. According to the technical scheme, the problems that an existing compressor glow test device in the prior art is complex, whether liquid returns or not is not easily judged, the experimental period is long, and the overall liquid impact resistance of the compressor cannot be rapidly and accurately evaluated are solved.

The invention relates to the technical field of compressors, in particular to a fixed scroll axial flexible scroll compressor. The distance between the periphery R of the tooth end of a fixed vortex blade and the center of a main supporting component accounts for 30%-40% of the diameter D of a shell; and the matching width K of the excircle through hole of the fixed scroll and the cylindrical steel pin accounts for 70%-90% of the exposed length L of the cylindrical steel pin. The diameter of the shell ranges from phi 160 mm to phi 180 mm. According to the technical scheme, the problem that in the prior art, a fixed vortex axially floats and is prone to overturning is solved.

The present invention provides a scroll compressor floating back pressure structure, a scroll compressor, and an air conditioner, wherein the scroll compressor floating back pressure structure comprises a crankshaft, a movable scroll plate, and an upper bracket, wherein the movable scroll plate has a movable plate bearing seat, the crankshaft has a crankshaft eccentric portion which can be rotatably inserted into the movable plate bearing seat, the upper bracket is configured with a sleeve matching hole, and further comprises a balancing sleeve, the balancing sleeve has an inner hole and an outer circle, wherein the movable plate bearing seat can be rotatably inserted into the inner hole, the balancing sleeve can be rotatably inserted into the sleeve matching hole, the center of the outer circle coincides with the rotation center of the crankshaft, and the center of the inner hole does not coincide with the center of the outer circle, and a sealing ring is provided on the axial end face of the balancing sleeve, the radial inner region of the sealing ring has a refrigerant of a first pressure, and the radial outer region has a refrigerant of a second pressure, and the first pressure is greater than the second pressure. According to the present invention, the stability of the movable plate movement is improved, end face leakage is avoided, and the performance of the compressor is improved.

The utility model relates to the field of compressors, in particular to a scroll compressor which comprises a scroll assembly and an end cover connected with the scroll assembly, the end cover comprises an air inlet cavity, an oil separation cavity, an exhaust cavity, an oil storage cavity and an outlet, the air inlet cavity is communicated with an air outlet hole of the scroll assembly, the exhaust cavity is communicated with the outlet, and the oil separation cavity is communicated with the oil storage cavity. The gas inlet cavity is communicated with the oil separation cavity, the oil separation cavity is communicated with the exhaust cavity and the oil storage cavity, an oil-gas mixture enters the gas inlet cavity from the gas outlet and is separated into refrigerant gas and lubricating oil after passing through the oil separation cavity, the refrigerant gas enters the exhaust cavity and is exhausted to the outlet, and the lubricating oil is exhausted to the oil storage cavity after passing through the oil separation cavity. And the lubricating oil enters the oil storage cavity. In addition, the utility model further relates to a corresponding air conditioning system. The scroll compressor and the air conditioning system can have the advantages of low cost, high oil-gas separation efficiency, high refrigeration efficiency and the like.

Heat pump systems that include vapor injection feature are disclosed. Embodiments may include a heat pump system that has two tandem scroll compressors. Each compressor is paired with a control valve that regulates the flow of vapor to the respective compressor. Both the control valves are in fluid communication with a single or common source for vapor injection and to the controller. During operation, the controller dynamically determines how much vapor injection is needed for each of the compressors based on the operational data of the compressors and, optionally, ambient environment data. The controller then operates the two valves to ensure that the right amount of vapor is injected into each compressor.

The utility model relates to a cross slip ring assembly and a scroll compressor. According to one aspect of the utility model, the utility model provides a cross-shaped slip ring assembly, the cross-shaped slip ring assembly is used for a scroll compressor, and the cross-shaped slip ring assembly comprises a cross-shaped slip ring body; the key extends from the cross-shaped sliding ring body and is used for being matched with a key groove formed in a key matching part of the scroll compressor, the key comprises a matching part used for being matched with the key groove, the matching part is provided with a working surface serving as a stress side surface, and the stress side surface is provided with a stress side surface. A groove is provided only at the working surface among the working surface of the mating portion and a non-working surface opposite to the working surface. According to the utility model, the abrasion of the working surface of the matching part of the key of the cross slip ring assembly can be reduced.

A scroll compressor and a refrigeration apparatus. The scroll compressor comprises a stationary scroll (320) and a partition plate (330), wherein an exhaust port (321) and an exhaust channel (322) are provided in an upper end of the stationary scroll (320), and the exhaust port (321) is arranged at the bottom of the exhaust channel (322); the partition plate (330) is connected to the stationary scroll (320) and covers the stationary scroll (320), and the partition plate (330) is provided with a silencing hole (331); the silencing hole (331) is in communication with the exhaust channel (322); and the equivalent diameter of the silencing hole (331) is D, and the diameter of the exhaust channel (322) is D2, which satisfies D2 / D2 2≤0.6. By means of limiting the diameter ratio of the silencing hole (331) to the exhaust channel (322), the flow area of the silencing hole (331) is made relatively small, so that on one hand, the acoustic impedance of a cross section can be increased, thereby reducing the propagation of high-frequency noises (with relatively short wavelengths), and thus a good effect on reducing the high-frequency noises is achieved.

The invention discloses a compressor and a refrigerating system. The compressor comprises a machine shell, a motor and a pump body assembly. A cavity is defined by the machine shell. The motor is mounted in the cavity; the pump body assembly is installed in the cavity and comprises a crankshaft, a static scroll plate, a support and a movable scroll plate. Wherein the crankshaft sequentially penetrates through the motor, the static scroll plate, the movable scroll plate and the support, a first scroll tooth part is arranged on the side, close to the movable scroll plate, of the static scroll plate, and a second scroll tooth part meshed with the first scroll tooth part is arranged on the movable scroll plate. And the motor is configured to drive the crankshaft to rotate so as to drive the movable scroll plate and the eccentric part of the crankshaft to synchronously rotate and translate. According to the scroll compressor, the problems of high noise and vibration of the scroll compressor can be solved, meanwhile, the exhaust pressure loss in the compression process of the compressor is reduced, and it is ensured that the performance of the structure and the performance of a traditional scroll reach the same level or above.

A scroll compressor is disclosed. The scroll compressor has back pressure holes which are formed in a non-orbiting scroll and a back pressure chamber assembly, and communicate a compression chamber and a back pressure chamber. In addition, a back pressure valve is provided inside the back pressure hole to change the passage area of the back pressure hole by moving along the longitudinal direction of the back pressure hole due to the pressure difference between the compression chamber and the back pressure chamber. Due to the back pressure valve, pressure pulsation in the back pressure chamber can be improved.

The utility model relates to a scroll compressor, which comprises a movable scroll, a movable scroll, a movable cover plate, a movable cover plate, a movable cover plate, a movable cover plate, a movable cover plate, a movable cover plate and a movable cover plate, wherein the movable scroll comprises a movable scroll end plate and a movable scroll; the fixed scroll comprises a fixed scroll end plate and a fixed scroll roll formed on one side of the fixed scroll end plate, the fixed scroll and the movable scroll are matched to form a series of compression cavities between the fixed scroll and the movable scroll, the fixed scroll end plate comprises a main exhaust port and an auxiliary exhaust port, the main exhaust port is in fluid communication with a central compression cavity in the compression cavities, and the auxiliary exhaust port is in fluid communication with the central compression cavity in the compression cavities. The auxiliary exhaust port is in fluid communication with the middle compression cavity located on the radial outer side of the central compression cavity. A first annular wall is formed on the side, opposite to the fixed scroll, of the fixed scroll end plate, and a bypass valve assembly is arranged on the end face, away from the fixed scroll, of the first annular wall so as to selectively open or close the auxiliary exhaust port. According to the scroll compressor with the variable volume ratio function, the scroll compressor is not limited by installation space and is simple in structure.

The invention discloses a helium scroll compressor and a refrigerating system, and the helium scroll compressor comprises a fixed scroll plate which is provided with an oil injection hole, and the oil injection hole is communicated with a compression cavity of the helium scroll compressor; the throttling component is arranged on the fixed scroll plate, and a throttling hole communicated with the oil injection hole is formed in the throttling component; the oil return pipe is connected to the throttling component, and a pipe opening of the oil return pipe is communicated with the throttling hole. Lubricating oil has speed pulsation when passing through the oil injection hole in the fixed scroll plate, and the throttling component with the throttling hole is arranged at the position, so that the flow speed of the lubricating oil entering the compressor in the oil return path can be controlled, the injection pressure of the lubricating oil at the position is reduced, the flow speed pulsation of the lubricating oil at the position is reduced, and cooling of a compression cavity is more facilitated; meanwhile, the influence of vibration of the compressor on the oil return line can be reduced, vibration and noise of the oil return line are reduced, the risk of breakage of the oil return line is greatly reduced, the reliability of the refrigerating system is improved, and the overall service life of the compressor is prolonged.

The utility model discloses an oil concentration detection device for a scroll compressor, and relates to the technical field of compressor lubricating oil concentration detection, in particular to a device for detecting the concentration of lubricating oil in an oil pool of the scroll compressor used for a heat pump air conditioning system. The device comprises a connecting device, a sampling device, a concentration testing and calculating device and a scroll compressor, the connecting device is welded at the bottom of the scroll compressor; the sampling device is of a detachable structure and is assembled on the connecting device to sample the lubricating oil in the scroll compressor during sampling; the concentration testing and calculating device is arranged outside the scroll compressor, is used for testing and calculating the lubricating oil collected by the sampling device, and is not connected with the scroll compressor. According to the technical scheme of the utility model, the problems that in the prior art, a viscometer is adopted for testing, so that a result cannot be measured in an over-range manner; the oil pool concentration is speculated by testing the temperature of the lower cover of the compressor and then through a Darnille curve, so that the test result is inaccurate.

The utility model discloses a stator and rotor structure for a scroll compressor motor, and relates to the technical field of scroll compressor processing, in particular to a motor structure for a scroll compressor. According to the utility model, the wave-shaped welding bead is arranged on the linear segment of the stator punching sheet and is used for welding after the stator punching sheet is laminated; the number of the rotor slots of the rotor punching sheet is 38. Rivet buckles B which are used for connection after the rotor punching sheets are stacked are uniformly distributed on the annular part between the shaft hole of the rotor punching sheet and the rotor groove. The laminated thickness of the stator punching sheets ranges from 80 mm to 200 mm. And the laminated thickness of the rotor punching sheets ranges from 78 mm to 200 mm. The technical scheme of the utility model solves the problems that the stator punching sheet in the prior art is close to the center hole of the arc segment, the magnetic density of the stator yoke is increased, and the motor efficiency is reduced; and the rotor slot area of the rotor punching sheet is relatively small, so that the rotor resistance is relatively high, the aluminum consumption of the rotor is relatively large, and the motor efficiency is reduced.

An electric compressor includes a housing, refrigerant inlet port, a refrigerant outlet port, an inverter section, a motor section, a compression device and a front cover. The housing defines an intake volume and a discharge volume. The refrigerant inlet port is coupled to the housing and is configured to introduce the refrigerant to the intake volume. The compression device is a compression device configured to compress the refrigerant. The refrigerant outlet port is coupled to the housing and is configured to allow compressed refrigerant to exit the electric compressor from the discharge volume.

A scroll compressor comprising a compressor casing; a compression unit including a fixed scroll and an orbiting scroll defining a compression volume; an oil sump; a drive shaft including a driving portion coupled with the orbiting scroll; a variable-speed electric motor configured to rotatably drive the drive shaft; an oil injection system including an oil feed channel fluidly connected to the oil sump and extending over the entire length of the drive shaft, and oil injection means provided on the orbiting scroll and configured to deliver oil from the oil feed channel to the compression volume; and an oil flow regulating device configured to regulate an oil flow from the oil feed channel to the oil injection means.

A scroll compressor includes a first scroll including a first end plate and a first scroll wrap extending downward from the first end plate; a second scroll including a second end plate and a second scroll wrap extending upward from the second end plate, the second scroll and the first scroll cooperating to form a compression chamber for compressing a refrigerant; a motor; a driving member located below the second scroll, the motor driving the first scroll to rotate through the driving member, and the first scroll driving the second scroll to rotate; and a bracket, the driving member being rotatably supported on the bracket. This structure can improve the performance of the scroll compressor.

The application provides a bearing assembly, a pump body assembly and a scroll compressor. The bearing assembly comprises a bearing, a crankshaft and an oil reservoir, the bearing is arranged in the oil reservoir and used for supporting the crankshaft; the crankshaft is provided with a central oil hole and a radial oil hole, one end of the radial oil hole is communicated with the central oil hole, and the other end of the radial oil hole is communicated with the oil reservoir; when the crankshaft rotates, the central oil hole absorbs oil and sends the oil to the oil reservoir through the radial oil hole. The bearing supporting the crankshaft is arranged in the oil reservoir, and the lubricating oil is transported to the oil reservoir from the central oil hole of the crankshaft, so that the bearing can be in the lubricating oil no matter when the scroll compressor is started for the first time or when frequent start-stop occurs during operation, and the state of little oil or even no oil is avoided.