33results about How to "Reduce oil discharge rate" patented technology

The invention relates to the technical field of gas compression devices, in particular to a rotor assembly, a compressor and an air conditioner. A plurality of main circulation channels are evenly formed in a first magnetic baffle, a rotor iron core and a second magnetic baffle of the rotor assembly around the central axis, auxiliary circulation channels which are through in the axial direction are formed in the first magnetic baffle, the rotor iron core and the second magnetic baffle, a main balance block is located on one side of the central axis, and auxiliary circulation channels are located on the other side of the central axis. The auxiliary circulation channels improve a balance system, the height of the main balance block in the axial direction can be reduced, then the windward area of the main balance block is reduced, the clapping effect on exhaust gas flow is weakened, tiny liquid drops are reduced, and then the amount of oil entering an upper cavity of a motor along with flowing of a refrigerant is reduced. The auxiliary circulation channels increase the flow flowing through the circulation channels, improves the internal circulation of the compressor, increases the stator trimming return flow, and realizes secondary oil separation. The effects of two oil separation are integrated, and the oil spitting rate of the compressor is effectively reduced.

The invention discloses a compressor oil blocking assembly, a rotor assembly, a compressor and an air conditioner system. The compressor oil blocking assembly comprises an oil blocking cap and an oil blocking base which is used for being fixedly connected with the oil blocking cap and can be arranged outside the connecting sleeve in a sleeving manner. A connecting sleeve used for being matched with the tail portion of a bent axle is arranged at the bottom end of the oil blocking cap. A first preset distance is formed between the bottom face of the oil blocking cap and the top face of the oil blocking base, and a second preset distance is formed between the bottom face of the oil blocking base and the bottom end face of the connecting sleeve. The compressor oil blocking assembly is provided with a double-layer oil blocking structure of the oil blocking cap and the oil blocking base, two-time oil blocking is achieved, the oil blocking effect is effectively improved, the oil output rate of the compressor, especially a large-displacement double-cylinder compressor is reduced. According to the air conditioner system applying the compressor oil blocking assembly, the heat exchange efficiency of the air conditioner system is improved, and the performance of the whole air conditioner system is improved.

The invention relates to the technical field of compressors, in particular to a pump body silencer, a pump body assembly and a compressor. The pump body silencer comprises an inner layer silencer cover connected with the pump body assembly and an outer layer silencer cover sleeving an inner layer silencer, wherein a gas-liquid separation cavity is formed between the inner layer silencer cover andthe outer layer silencer cover; a plurality of hollow inner layer resonators are arranged on one side, facing the outer layer silencer cover, of the top surface of the inner layer silencer cover; thetail ends of the inner layer resonators are in contact with the outer layer silencer cover, so that a resonance cavity expansion chamber is formed inside each inner layer resonator; and the resonancefrequencies of the resonance cavity expansion chambers inside the inner layer resonators are different. According to the pump body silencer, the pump body assembly and the compressor, the resonance frequencies of the resonance cavity expansion chambers are different, so that noises with different specific frequencies are eliminated, the silencing effect of the silencer is improved, the compressorand an electric appliance using the compressor are prevented from damaging the sound environment in life of people, the comfort of the compressor and the electric appliance using the compressor is improved, and the application range is expanded.

The invention provides a method and device for controlling low-temperature heating start of an air conditioner and the air conditioner. The method comprises the flowing steps: acquiring an ambient temperature; when the ambient temperature is less than a set temperature, sending a first start command to a fan of an outdoor unit to control the fan to start and run at the highest speed; after the third duration, sending a second start command to a compressor to control the compressor to start; after the fifth duration, turning on an electronic expansion valve of the outdoor unit. The method for controlling low-temperature heating start of the air conditioner can rapidly establish the system superheat degree under the premise of ensuring low oil discharge of the system, improve the heat exchange effect, enable the compressor to heat quickly, reduce the oil discharge amount, ensure the reliability of the system and realize rapid heating of the air conditioner during low-temperature heatingstart.

The invention discloses an oil separation device for a rotary compressor and a compressor with same. The oil separation device comprises an oil separation device body, wherein the oil separation device body comprises a first fixing part connected with an upper bearing, the first fixing part is connected with a first oil separation part, an oil hole is formed in the first oil separation part, and is in a horn mouth shape, the upper outer edge of the first oil separation part is connected with a second oil separation part in the axial direction, the second oil separation part is in a cylindrical shape, the second oil separation part is connected with a third oil separation part, and the third oil separation part points to a crankshaft to be in a circular ring shape. The oil separation device solves the problem that oil drops are broken and the oil discharge amount is increased due to the fact that lubricating oil is sprayed out of a spiral oil groove outlet to collide with a motor rotor is solved, and does not influence compressor power consumption.

The invention relates to the technical field of refrigeration, and discloses an oil separator used for a compressor, the compressor and a refrigeration system. The oil separator (10) is arranged in the compressor and comprises an oil separation chamber (120), an oil liquid outlet (122) and a gas outlet (123), wherein the oil liquid outlet (122) and the gas outlet (123) communicate with the oil separation chamber (120); the oil liquid outlet (122) is positioned on the bottom of the oil separation chamber (120); the gas outlet (123) is positioned on the top of the oil separation chamber (120); the oil separator (10) comprises an oil returning pipe (14) connected to the oil liquid outlet (122); and the outlet pressure of the oil returning pipe (14) is equal to the pressure of the gas outlet (123). By use of the oil separator, oil and gas separation efficiency can be improved, an oil discharging rate is lowered, and the performance of the compressor is improved.

The invention provides a balancing weight (1) of a rotary compressor. The balancing weight comprises a balancing weight base plate (11), wherein the balancing weight base plate is of a flat disc shape, and comprises an upper circular surface and a lower circular surface. A balancing weight main eccentric portion (12) and a balancing weight auxiliary eccentric portion (13) are arranged on the upper circular surface and the lower circular surface respectively, and are oppositely arranged by circling the circle center of the disc-shaped balancing weight base plate (11). The balancing weight base plate (11), the balancing weight main eccentric portion (12) and the balancing weight auxiliary eccentric portion (13) are of an integrally formed structure. By the adoption of the balancing weight, only one mold needs to be opened, and the balancing weight main eccentric portion and the balancing weight auxiliary eccentric portion can be manufactured, so that compared with the cost of respective mold opening manufacturing in the prior art, the cost is greatly reduced. In addition, due to the fact that the angle between the balancing weight main eccentric portion and the balancing weight auxiliary eccentric portion is relatively fixed, the assembling process is simple, the assembling efficiency is remarkably improved, the phenomenon of assembling errors cannot exist, and the vibration noise of the compressor can be guaranteed. The invention further relates to a double-cylinder double-stage compressor with the balancing weight.

The present invention discloses an air discharging assembly of a compressor, and a rotation type compressor. The air discharging assembly of the compressor comprises a bearing, a silencer, a high-low pressure separation plate, and an oil distribution structure, wherein the silencer is arranged on the bearing and defines a first air discharging cavity together with the bearing; the high-low pressure separation plate defines a second air discharging cavity with the bearing and the silencer respectively; the second air discharging cavity is communicated with the first air discharging cavity; the oil distribution structure is arranged in the first air discharging cavity and/or the second air discharging cavity; an oil return hole communicated with the second air discharging cavity and an oil pool is formed in the bearing. In the air discharging assembly of the compressor, the oil distribution structure can be used for distributing oil to separate oil liquid from a coolant; separated oil liquid can gather to the oil return hole and then flows to the oil pool by the oil return hole, so that the oil liquid can be used in a cycling manner, the oil discharging rate is reduced, the stabilization of the oil level of the oil pool is ensured, and the reliability of the compressor is improved.

The invention provides a compressor and a heat exchange device. Specifically, the compressor comprises a rotor structure, a bent axle, and an oil retaining structure, wherein the bent axle penetratesthrough the rotor structure; the oil retaining structure is connected with the top end of the bent axle, and a first oil retaining space is formed between the oil retaining structure and the end faceof the rotor structure; the oil retaining structure comprises a bowl structure and at least one opening gap is arranged in the side wall of the bowl structure; the opening gap communicates to the edgeof the top portion of the bowl structure; and an oil retaining plate is arranged on the inner surface and/or outer surface of the side wall of the bowl structure. The problem of high compressor oil drain rate in the prior art is solved.

The invention provides a compressor pump body. The pump body comprises a rotating shaft, a piston, a flange, a limiting plate, a cylinder and another cylinder, wherein an cylinder, a piston and a rotating shaft are arranged in the cylinder, an air suction channel is arranged on the cylinder, the limiting plate and the flange are respectively mounted on upper and lower sides of the cylinder, a first exhaust passage is arranged on a side edge of the cylinder, a cover plate for sealing the first exhaust passage is arranged on the side edge of the cylinder, the limiting plate and the flange at anupper portion of the cylinder are provided with second exhaust passages, the first exhaust channel is communicated with the second exhaust channels. The pump body solves a problem of side exhaust of the compressor pump body and prevents compressed refrigerant from being directly discharged into refrigerant oil. The compressor comprises the compressor pump body, and the compressor pump body is thecompressor pump body. Problems that side exhaust resistance is large, and compression efficiency is affected are solved, the oil spitting rate of the compressor is effectively prevented from being increased, and energy efficiency of an air-conditioning system is prevented from being affected.

The invention provides a rotor assembly, a motor and a compressor, the rotor assembly comprises a rotor iron core and an oil blocking part, the rotor iron core is provided with a flow channel, and theflow channel is used for an oil-gas mixture to flow in; the oil blocking part comprises a first oil blocking base and an oil blocking cap, the first oil blocking base is connected with the end face of the rotor iron core, and the end face of the side, facing the rotor iron core, of the oil blocking cap abuts against the first oil blocking base so as to block a gap between the oil blocking cap andthe first oil blocking base. The problem that in the prior art, the oil spitting rate of a compressor is too large is solved.

The invention provides an oil way structure and a scroll compressor. A dynamic scroll disc, a support frame structure and a motor assembly are included. A backpressure cavity is formed between the dynamic scroll disc and the support frame structure. An oil storage area is arranged in a cavity where the motor assembly is located. The support frame structure is provided with a first oil introducingchannel. The oil storage area communicates with the backpressure cavity through the first oil introducing channel. The first oil introducing channel is used for introducing oil in the oil storage areainto the backpressure cavity. According to the oil way structure and the scroll compressor, the dynamic scroll disc, a static scroll disc and a bearing part can all achieve oil film lubrication, friction power consumption is lowered, and reliability of the compressor is improved. The oil introducing channel is simple in structure, high and low pressure throttling is not needed, and the risk of high and low pressure leakage does not exist. An oil way channel and a gas way are relatively separated, the oil discharge rate of the compressor can be lowered, and a system heat exchange effect is improved. A circulation oil way is formed, recycling of a lubricant in the compressor can be facilitated better, part machining and design are simplified, the process is simple, and safety and reliability are achieved.

The invention relates to a compressor and a compressor upper cover. The compressor upper cover comprises a top wall and side walls, the top wall and the side walls are connected in an intersecting mode and define an accommodating cavity, and a guide groove is formed in the inner surfaces, facing the accommodating cavity, of the side walls; wherein the guide groove is provided with a head section and a tail section which communicate with each other, and the head section is close to the top wall and is bent; and the tail section is far away from the top wall, and the tail section is obliquely arranged in the direction far away from the top wall in the direction parallel to the top wall. The bent guide groove is formed in the inner side of the compressor upper cover, so that gas flowing to the compressor upper cover is guided to flow along the guide groove in a bent mode, impact between gas flow and the compressor upper cover is relieved, and noise of the compressor is further reduced. Moreover, when the air flow flows from the head section to the tail section in the guide groove from top to bottom, oil liquid doped in the air flow can be retained on the inner wall of the guide groove, and finally the retained oil liquid flows out from the obliquely downward tail section, so that the oil liquid in the air flow can be separated and recycled, the oil spitting rate of the compressoris reduced, and reliable lubrication of the compressor is guaranteed.

The invention provides an oil supply assembly, a compressor and a control method. The oil supply assembly comprises a fan, and the fan is configured to adjust the pressure difference between the two ends of a crankshaft center oil hole according to the real-time rotating speed of a compressor motor so that the crankshaft center oil hole can be normally oiled when the compressor motor runs. The technical problems that the rotating speed of a fan of an oil supply assembly of a compressor is consistent with the rotating speed of a crankshaft of the compressor, the oil supply amount is limited by the rotating speed of a crankshaft, and consequently oil supply is not smooth during operation of the compressor are solved, the rotating speed range of the compressor motor is widened, and on the other hand, the oil spitting rate of the compressor can be reduced.

The invention relates to the technical field of four-way reversing valves, in particular to a four-way reversing valve, an air conditioning system and a control method of the four-way reversing valve. The air conditioning system comprises the four-way reversing valve, a compressor, an indoor unit and an outdoor unit, wherein the four-way reversing valve comprises a main valve body with a first inner cavity and a valve element movably arranged in the first inner cavity; a first valve port, a second valve port, a third valve port and a fourth valve port which are communicated with the first inner cavity are formed in the main valve body; the first valve port is communicated with an air suction port of the compressor; the second valve port is communicated with an exhaust port of the compressor; the third valve port is communicated with the indoor unit; the fourth valve port is communicated with the outdoor unit; the valve element has a first position, a second position and a third position in the moving process; when the valve element is located at the first position or the second position, all the valve ports are communicated differently; and when the valve element is located at the third position, the first valve port and the second valve port are disconnected with the third valve port, and the first valve port and the second valve port are disconnected with the fourth valve port, so that refrigerants in the indoor unit and the outdoor unit can be prevented from flowing back to the compressor.

The invention provides a compressor and an air conditioner with the same. The compressor comprises a pump body assembly and a rotating shaft assembly, the pump body assembly comprises a compression structure, and the compression structure is provided with an exhaust port; and a separation cavity is formed in the rotating shaft assembly, the exhaust port communicates with the separation cavity, and the separation cavity is used for carrying out oil-gas separation on fluid discharged out of the exhaust port. According to the compressor and the air conditioner with the same, the oil spitting rate of the compressor can be effectively reduced.

The invention provides a rotary fluid machine which comprises a motor, a pump body assembly and a crankshaft support; the pump body assembly comprises a crankshaft, an air cylinder, a first bearing and a second bearing; one end of the crankshaft penetrates through the air cylinder, the first bearing and the second bearing and can support the crankshaft, and the other end of the crankshaft penetrates through the motor; a crankshaft support is further arranged on a part of the shaft section, extending out of the motor, of the crankshaft; the radial outer end of the crankshaft support is fixed; a shaft hole is formed in the radial inner side of the crankshaft support; and the other end of the crankshaft penetrates through the shaft hole and is supported on the crankshaft support. The crankshaft support is converted into a bridge structure from a cantilever beam structure and supports the crankshaft to operate together with the upper flange and the lower flange, so that the compressor operates more stably, the stress deformation of a crankshaft shaft system after the rotating speed of the compressor is increased is greatly reduced, the bending deformation of the crankshaft is improved, the friction loss of the compressor is reduced, the failure of compressor parts is avoided, and the reliability of the compressor is improved.