WO2022237057A1 - 压缩机、制冷***和制冷设备 - Google Patents
压缩机、制冷***和制冷设备 Download PDFInfo
- Publication number
- WO2022237057A1 WO2022237057A1 PCT/CN2021/121780 CN2021121780W WO2022237057A1 WO 2022237057 A1 WO2022237057 A1 WO 2022237057A1 CN 2021121780 W CN2021121780 W CN 2021121780W WO 2022237057 A1 WO2022237057 A1 WO 2022237057A1
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- WIPO (PCT)
- Prior art keywords
- hole
- compressor
- compression
- refrigerant
- middle section
- Prior art date
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 34
- 230000006835 compression Effects 0.000 claims abstract description 141
- 238000007906 compression Methods 0.000 claims abstract description 141
- 238000004891 communication Methods 0.000 claims abstract description 56
- 230000000694 effects Effects 0.000 abstract description 44
- 239000003507 refrigerant Substances 0.000 description 141
- 238000001816 cooling Methods 0.000 description 75
- 238000009434 installation Methods 0.000 description 11
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000004804 winding Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000013021 overheating Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
- F04D17/12—Multi-stage pumps
- F04D17/122—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
- F04D17/12—Multi-stage pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
- F04D29/058—Bearings magnetic; electromagnetic
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
- F25B31/006—Cooling of compressor or motor
- F25B31/008—Cooling of compressor or motor by injecting a liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
- F25B31/02—Compressor arrangements of motor-compressor units
- F25B31/026—Compressor arrangements of motor-compressor units with compressor of rotary type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
- F25B1/053—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of turbine type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
Definitions
- the present application relates to the technical field of compressors, in particular to a compressor, a refrigeration system and a refrigeration device.
- the motor as the main power input component, generates a large amount of heat. If it cannot be effectively cooled, the temperature of the stator winding will be overheated or even burned, and the rotor will also be damaged due to overheating. At the same time, the rotor will be damaged due to Overheating and excessive elongation can also cause damage to other components such as bearings.
- the present application aims to solve or improve at least one of the technical problems existing in the prior art.
- the first aspect of the application proposes a compressor.
- a second aspect of the present application proposes a refrigeration system.
- the third aspect of the present application proposes a refrigeration device.
- the present application proposes a compressor, comprising: a casing, the casing includes a first section, a middle section and a second section from one end to the other end, and the middle section is provided with a first A through hole and a second through hole, the first through hole and the second through hole both communicate with the inside and outside of the casing;
- the stator structure is installed in the casing and is located in the middle section;
- the rotor structure is rotatably installed in the stator structure;
- the first bearing structure is installed in the first section;
- the second bearing structure is installed in the second section, and the rotor is installed in the first bearing structure and the second bearing structure;
- the first compression structure is arranged in the first section away from the middle At one end of the section, the interior of the first compression structure communicates with the interior of the middle section through the first bearing structure;
- the second compression structure is located at the end of the second section away from the middle section, and the interior of the second compression structure passes through the second bearing structure It communicates with
- the compressor proposed by this application includes a casing, a stator structure, a rotor structure, a first bearing structure, a second bearing structure, a first compression structure and a second compression structure, wherein the stator structure, the first bearing structure and the second bearing
- the structure is arranged in the casing, specifically, along the axial direction of the casing, the right casing is divided into three parts from one end to the other end, namely the first section, the middle section and the second section, and the middle section is located between the first section and the second section.
- stator structure is located in the middle section, the first bearing structure is located in the first section, and the second bearing structure is located in the second section, and then the rotor structure is installed on the first bearing structure and the second bearing structure, and is connected with the stator
- the structures are matched, and the two ends of the casing are respectively installed on the first compression structure and the second compression structure, that is, the first compression structure is installed on the first section, and the second compression structure is installed on the second section.
- the first compression structure communicates with the inside of the shell, and when the first compression structure compresses the refrigerant, it will leak air into the shell, specifically, leak air into the first section, and the first section is provided with The first bearing structure, therefore, the refrigerant entering the housing from the first compression structure can cool the first bearing structure.
- the first bearing structure can communicate with the inner space of the first compression structure and the middle section, the refrigerant entering the first section can pass through the first bearing structure and enter the middle section, thereby improving the cooling effect on the first bearing structure.
- the second compression structure communicates with the interior of the shell, and when the second compression structure compresses the refrigerant, it will leak air into the shell, specifically, leak air into the second section, and the second section is set There is a second bearing structure, therefore, the refrigerant entering the housing from the second compression structure can cool the second bearing structure. Moreover, since the second bearing structure can communicate with the inner space of the second compression structure and the middle section, the refrigerant entering the second section can pass through the second bearing structure and enter the middle section, thereby improving the cooling effect on the second bearing structure.
- first through hole and a second through hole are provided on the middle section, the first through hole can communicate with the inside and the outside of the housing, and the second through hole can also communicate with the inside and the outside of the housing, and then the first through hole can be connected to the outside of the housing.
- the through hole is used as the inlet of the refrigerant, and the second through hole is used as the outlet of the refrigerant, so that the refrigerant can be passed through the first through hole to cool the stator structure and the rotor structure.
- the refrigerant entering the middle section from the right first compression structure and the second compression structure is also discharged through the second through hole.
- the stator structure and the rotor structure are cooled by the refrigerant entering the first through hole, while the first bearing structure is cooled by the refrigerant entering the first compression structure, and the second bearing structure is cooled by the second compression structure.
- the structure enters the refrigerant for cooling. Therefore, the three-stage cooling method can provide better cooling effect, and each individual cooling part does not require excessive refrigerant flow, thereby reducing the impact of the refrigerant on the stator structure, rotor structure,
- the impact of the first bearing structure and the second bearing structure ensures the stability of the operation of the compressor, and there are only two communication structures in the middle section, the first through hole and the second through hole, which are simple in structure and easy to produce.
- the stator structure includes: a main body, the main body includes a third through hole and a fourth through hole connected to each other, the third through hole is arranged along the axial direction of the main body, and the rotor structure passes through the third through hole.
- the through hole, the fourth through hole is arranged along the radial direction of the main body.
- the stator structure includes a main body and third through holes and fourth through holes arranged on the main body, the third through holes are arranged along the axial direction of the main body, and the fourth through holes are arranged along the radial direction of the main body, wherein, The third through hole communicates with the fourth through hole, and when the refrigerant is delivered into the casing through the first through hole, a part of the refrigerant will enter the third through hole through the fourth through hole, thereby directly cooling the inside of the stator structure and the rotor structure , thereby improving the cooling effect on the stator structure and the rotor structure.
- the number of the fourth through holes is one or more, and when the number of the fourth through holes is multiple, the plurality of fourth through holes are evenly distributed in the main body.
- the number of through holes can be one or more, and the number of fourth through holes can be set according to the volume of the stator or actual needs, so as to achieve better cooling effect, and, in the fourth through hole When there are more than one, a plurality of fourth through holes are evenly distributed in the main body, so as to achieve a uniform cooling effect and avoid local overheating.
- the fourth through hole is located in the middle of the main body.
- the fourth through hole is located in the middle of the main body, so that the purpose of uniform cooling can be achieved on both sides of the rotor structure along the axial direction, and the stroke of the refrigerant on both sides is within a reasonable range , so as to avoid the situation that the temperature of one side of the rotor structure is too high, and improve the cooling effect.
- the inner wall of the middle section is provided with a guide groove.
- a guide groove is provided inside the middle section, so that the refrigerant can move along a corresponding path, thereby achieving a better cooling effect.
- the diversion groove includes: a first diversion structure, which is spirally arranged in the middle section and communicates with the first through hole ;
- the second diversion structure is arranged in the middle section in a spiral shape and communicates with the first through hole.
- the diversion groove includes a first diversion structure and a second diversion structure, and the two diversion structures respectively form a spiral shape on both sides of the first through hole, so as to realize the stator structure from the middle position to the two sides.
- the outside of the entire stator structure can be in contact with the refrigerant, and the contact time between the refrigerant and the stator structure can be prolonged, so as to better take away the heat of the stator structure and achieve a better cooling effect .
- the first rib is connected to one side wall of the diversion groove
- the second rib Connected with the other side wall of the diversion groove, along the circumferential direction of the casing, the first retaining ribs and the second retaining ribs are sequentially and alternately arranged on the diversion groove.
- a first retaining rib and a second retaining rib are arranged in the diversion groove, and one of them is connected with one side wall of the diversion groove, and the other is connected with the other side wall of the diversion groove.
- the walls are connected, and the two are staggered to form a curved flow space, thereby prolonging the flow path of the refrigerant and increasing the contact time between the refrigerant and the stator structure to better take away the heat of the stator structure and achieve a better cooling effect.
- the guide groove is in an annular structure and surrounds the inner wall of the middle section.
- the guide groove surrounds the inner wall of the middle section, so that the periphery of the entire stator structure can be cooled by the refrigerant, thereby improving the cooling effect.
- the first through hole is located in the middle of the middle section and communicates with the diversion groove
- the number of second through holes is two, respectively It is arranged on both sides of the middle section and communicated with the diversion groove.
- the first through hole is located in the middle of the middle section, so that the purpose of uniform cooling can be achieved on both sides of the stator structure along the axial direction, and the stroke of the refrigerant on both sides is reasonable.
- Range so as to avoid the situation that the temperature of one side of the rotor structure is too high, improve the cooling effect, and the second through hole set on both sides of the first through hole can quickly discharge the refrigerant after cooling the compressor to ensure that the refrigerant
- the circulation effect improves the cooling effect of the compressor.
- the compressor is a horizontal compressor, and the side walls on both sides of the diversion groove are provided with communication ports, and the diversion port is lower than one-third of the outer diameter of the diversion groove; The communication port is higher than two-thirds of the outer diameter of the diversion groove.
- the compressor is a horizontal compressor, and the diversion opening is lower than one-third of the outer diameter of the diversion groove, so that the refrigerant enters from the lower part, and the communication port is higher than the outer diameter of the diversion groove. Two-thirds, so that the refrigerant is discharged from the upper part, and then the lower end enters the design of the upper end.
- the refrigerant will flow in the diversion groove for a longer time, and it can also reduce the refrigerant in the shell. Possibility of interruption of flow during flow, thereby improving cooling effect.
- the first compression structure includes: a first compression chamber and a first passage, and the first passage communicates with the first compression chamber The chamber and the interior of the housing;
- the second compression structure includes: a second compression chamber and a second passage, and the second passage communicates the second compression chamber and the interior of the housing.
- the first compression structure includes a first compression chamber and a first channel
- the refrigerant can be compressed in the first compression chamber, and can leak into the shell through the first channel, so that when compressing the refrigerant , the refrigerant can leak into the casing through the first channel, thereby realizing the cooling of the first bearing structure.
- the second compression structure includes a second compression chamber and a second passage, the refrigerant can be compressed in the second compression chamber, and can leak into the housing through the second passage, so that when the refrigerant is compressed, the refrigerant can be released by the second The channel leaks into the housing, enabling cooling of the second bearing structure.
- the first bearing structure is an electromagnetic bearing structure
- the second bearing structure is an electromagnetic bearing structure
- the first bearing structure and the second bearing structure are electromagnetic bearing structures, and the electromagnetic bearing structure has low friction and fast speed, and the gap of the electromagnetic bearing structure can allow refrigerant to flow through, which improves the efficiency of the first bearing structure. and the cooling effect of the second bearing structure.
- it further includes: a communication pipe communicating with the first compression structure and the second compression structure.
- the first compression structure and the second compression structure are connected through a communication pipe, thereby realizing two-stage compression and improving the compression effect of the compressor.
- the present application proposes a refrigeration system, including: the compressor provided in any one of the above technical solutions.
- the refrigerating system proposed by the present application includes the compressor provided by any one of the above-mentioned technical solutions, therefore, it has all the beneficial effects of the compressor provided by any one of the above-mentioned technical solutions, and will not be stated one by one here. .
- it further includes: an evaporator connected with the first compression structure and the second through hole of the compressor; a condenser connected with the first through hole and the second compression structure.
- the refrigerating equipment further includes an evaporator and a condenser, and the gaseous refrigerant discharged from the evaporator is compressed by the first compression structure and the second compression structure, and leaks into the shell to cool the compressor, and is finally The refrigerant discharged from the second compression structure enters the condenser.
- the liquid refrigerant discharged from the condenser enters the shell through the first through hole, and after cooling the compressor, it forms a gaseous refrigerant and enters the evaporator.
- the compressor is cooled while exchanging heat in the refrigeration system.
- the present application provides a refrigeration device, including: the compressor provided in any one of the above technical solutions; or the refrigeration system provided in any one of the above technical solutions.
- the refrigerating equipment proposed by the present application includes the compressor provided by any one of the above technical solutions or the refrigeration system provided by any one of the above technical solutions, therefore, it has the compressor provided by any one of the above technical solutions Or all the beneficial effects of the refrigeration system provided by any one of the above technical solutions will not be stated one by one here.
- Fig. 1 shows a schematic structural diagram of a compressor provided by an embodiment of the present application
- Fig. 2 shows a schematic structural diagram of another compressor provided by an embodiment of the present application
- Fig. 3 shows a cross-sectional view of a compressor provided by an embodiment of the present application
- Fig. 4 shows a cross-sectional view of a compressor provided by an embodiment of the present application
- Fig. 5 shows a cross-sectional view of another compressor provided by an embodiment of the present application
- Fig. 6 shows a sectional view of another compressor provided by an embodiment of the present application.
- 100 compressor, 110 housing, 112 first section, 114 middle section, 1142 first through hole, 1144 second through hole, 116 second section, 118 guide groove, 1182 first guide structure, 1184 second guide Flow structure, 1186 first rib, 1188 second rib, 1190 first communication port, 1192 second communication port, 120 stator structure, 124 third through hole, 126 fourth through hole, 130 rotor structure, 140 first Bearing structure, 150 second bearing structure, 160 first compression structure, 162 first mounting part, 1622 first mounting plate, 1624 first shaft sleeve, 164 first impeller, 166 first compression main body, 1662 first compression chamber , 168 first channel, 170 second compression structure, 172 second mounting part, 1722 second mounting plate, 1724 second shaft sleeve, 174 second impeller, 176 second compression main body, 1762 second compression chamber, 178 Two channels, 180 connecting pipes.
- a compressor 100 , a refrigeration system and refrigeration equipment provided according to some embodiments of the present application are described below with reference to FIGS. 1 to 6 .
- a compressor 100 including a casing 110, a stator structure 120, a rotor structure 130, a first bearing structure 140, a second bearing structure 150, a first compression structure 160 and a second compression structure 170 .
- the rotor structure 130 is compatible with the stator structure 120.
- a magnetic field is generated to drive the rotor structure 130 to rotate, and the stator structure 120 is installed inside, and the rotor structure 130 passes through the first bearing structure 140 and the second bearing structure.
- the structure 150 is mounted inside the housing 110 , the first compression structure 160 is disposed at one end of the housing 110 , and the second compression structure 170 is disposed at the other end of the housing 110 .
- the housing 110 includes a first section 112, a middle section 114 and a second section 116, the middle section 114 is located between the first section 112 and the second section 116, and the stator is installed in the middle In the section 114, the first bearing structure 140 is installed in the first section 112, the first compression structure 160 is connected with the first section 112, the second bearing structure 150 is installed in the second section 116, and the second compression structure 170 is connected with the second section 112. Segment 116 is connected.
- a first through hole 1142 and a second through hole 1144 are provided, the first through hole 1142 can communicate with the inside and the outside of the housing 110, and the second through hole 1144 can communicate with the inside of the housing 110 Furthermore, the refrigerant can be input into the housing 110 through the first through hole 1142 and then discharged through the second through hole 1144 to realize the circulation of the refrigerant and realize the continuous cooling of the stator structure 120 and the rotor structure 130 .
- the first compression structure 160 is connected to the first section 112, so that when the first compression structure 160 performs the operation of compressing the refrigerant, a part of the refrigerant will leak into the first section 112 to cool the first bearing structure 140, and , along the axial direction of the first bearing structure 140, the first bearing structure 140 is provided with a first flow channel, so that the refrigerant entering the first section 112 will pass through the first flow channel, thereby cooling the first bearing structure 140, and finally by the first The first channel discharges into the middle section 114 and then discharges through the second through hole 1144 .
- the second compression structure 170 communicates with the second section 116, so that when the second compression structure 170 performs the operation of compressing the refrigerant, a part of the refrigerant will leak into the second section 116 to cool the second bearing structure 150, and, along In the axial direction of the second bearing structure 150, the second bearing structure 150 is provided with a second flow channel, so that the refrigerant entering the second section 116 will pass through the second flow channel, thereby cooling the second bearing structure 150, and finally by the second The flow channel discharges into the middle section 114 and then discharges through the second through hole 1144 .
- the compressor 100 proposed in this application includes a housing 110, a stator structure 120, a rotor structure 130, a first bearing structure 140, a second bearing structure 150, a first compression structure 160 and a second compression structure 170, wherein the stator structure 120 1.
- the first bearing structure 140 and the second bearing structure 150 are arranged in the housing 110, specifically, along the axial direction of the housing 110, the right housing 110 is divided into three parts from one end to the other end, namely the first segment 112 , the middle section 114 and the second section 116, the middle section 114 is located between the first section 112 and the second section 116, wherein the stator structure 120 is located in the middle section 114, the first bearing structure 140 is located in the first section 112, and the second bearing The structure 150 is located in the second section 116, and the rotor structure 130 is installed on the first bearing structure 140 and the second bearing structure 150, and cooperates with the stator structure 120, and is respectively installed on the first compression
- the structure 160 and the second compression structure 170 ie, the first compression structure 160 is mounted on the first section 112 and the second compression structure 170 is mounted on the second section 116 .
- the first compression structure 160 communicates with the inside of the housing 110, and when the first compression structure 160 compresses the refrigerant, air will leak into the housing 110, specifically, air will leak into the first section 112, while the second The first bearing structure 140 is disposed in the section 112 , so the refrigerant entering the housing 110 from the first compression structure 160 can cool the first bearing structure 140 . Moreover, since the first bearing structure 140 can communicate with the inner space of the first compression structure 160 and the middle section 114, the refrigerant entering the first section 112 can pass through the first bearing structure 140 and enter the middle section 114, thereby improving the performance of the first bearing. Cooling effect of structure 140 .
- the second compression structure 170 communicates with the interior of the housing 110, and when the second compression structure 170 compresses the refrigerant, it will leak air into the housing 110, specifically, air leakage into the second section 116, and The second bearing structure 150 is disposed in the second section 116 , therefore, the refrigerant entering the housing 110 from the second compression structure 170 can cool the second bearing structure 150 .
- the second bearing structure 150 can communicate with the inner space of the second compression structure 170 and the middle section 114, the refrigerant entering the second section 116 can pass through the second bearing structure 150 and enter the middle section 114, thereby lifting the pressure on the second bearing. Cooling effect of structure 150 .
- first through hole 1142 and a second through hole 1144 are provided on the middle section 114.
- the first through hole 1142 can communicate with the inside and the outside of the housing 110, and the second through hole 1144 can also communicate with the inside and the outside of the housing 110.
- the first through hole 1142 can be used as the inlet of the refrigerant, and the second through hole 1144 can be used as the outlet of the refrigerant, and the refrigerant can be passed through the first through hole 1142 to cool the stator structure 120 and the rotor structure 130 .
- the refrigerant entering the middle section 114 from the right first compression structure 160 and the second compression structure 170 is also discharged through the second through hole 1144 .
- stator structure 120 and the rotor structure 130 are cooled by the refrigerant entering the first through hole 1142, and the first bearing structure 140 is cooled by the refrigerant entering the first compression structure 160, and the second bearing The structure 150 is cooled by the refrigerant entering the second compression structure 170.
- the three-stage cooling method can provide a better cooling effect, and each individual cooling part does not require excessive refrigerant flow, thereby reducing the
- the impact of the refrigerant on the stator structure 120, the rotor structure 130, the first bearing structure 140 and the second bearing structure 150 ensures the stability of the operation of the compressor 100, and in the middle section 114 there are only the first through hole 1142 and the second through hole 1142.
- the holes 1144 have two connected structures, which are simple in structure and easy to produce.
- the stator structure 120 includes a stator core and a winding, and then a magnetic field is generated after the winding is energized, thereby driving the rotor structure 130 to rotate.
- the rotor structure 130 includes a rotor core and a magnetic part, and the magnetic part is driven by the magnetic field generated by the winding, thereby Drive the rotor structure 130 to rotate.
- the stator structure 120 further includes a main body and a third through hole 124 provided on the main body.
- the third through hole 124 penetrates the main body along the axial direction of the main body for the installation and cooperation of the rotor structure 130 and the stator structure 120, that is, the rotor structure 130 is rotatably passed through the third through hole 124, and , an air gap is formed between the stator structure 120 and the rotor structure 130 .
- the main body is also provided with a fourth through hole 126 arranged along the radial direction of the main body.
- the fourth through hole 126 communicates with the third through hole 124 and forms an opening on the peripheral side of the main body.
- the refrigerant when the refrigerant is delivered into the housing 110 through the first through hole 1142, the refrigerant can flow in the housing 110, and the main body of the stator structure 120 is provided with a fourth through hole 126, which is controlled by the first through hole 1142.
- the refrigerant entering the casing 110 through the hole 1142 first contacts the outer peripheral side of the stator structure 120, and the fourth through hole 126 has an opening on the outer peripheral side, and then the refrigerant can pass through the fourth through hole 126 and flow into the third through hole 124.
- the refrigerant can connect with the inside of the stator structure 120, the inner peripheral side of the stator structure 120, and the outer peripheral side of the rotor, thereby taking away the stator structure
- the temperature of the inner peripheral side of 120 and the rotor structure 130 achieves a better cooling effect on the stator structure 120 and achieves a better cooling effect on the rotor structure 130 .
- the number of fourth through holes 126 on the stator structure 120 may be one.
- a fourth through hole 126 is disposed on the stator structure 120 .
- the number of the fourth through holes 126 on the stator structure 120 may be multiple, and the plurality of fourth through holes 126 are evenly distributed on the main body of the stator structure 120 .
- the stator structure 120 is provided with two fourth through holes 126, and then the two fourth through holes 126 are oppositely arranged on the stator structure 120, and the angle formed between the two fourth through holes 126 is approximately 180 degrees.
- the stator structure 120 is provided with three fourth through holes 126, and the angle between two adjacent fourth through holes 126 among the three fourth through holes 126 is approximately 120 degrees
- the stator structure 120 is provided with four four fourth through holes 126, and the angle between two adjacent fourth through holes 126 among the four fourth through holes 126 is approximately 90 degrees.
- the number of the fourth through holes 126 on the stator structure 120 can also be set to 5, 6, 7 or 8, etc. as required.
- the refrigerant can be introduced into the air gap at different positions at the same time, and the rotor structure 130 can also be cooled at multiple positions at the same time, thereby improving the cooling of the stator structure 120 and the rotor structure 130 Effect.
- the number of through holes can be one or more, and the number of fourth through holes 126 can be set according to the volume of the stator or actual needs, so as to achieve a better cooling effect, and, in the fourth through holes 126 When the number is multiple, the multiple fourth through holes 126 are evenly distributed on the main body, so as to achieve uniform cooling effect and avoid local overheating.
- the fourth through hole 126 is provided in the middle of the main body of the stator structure 120 . That is, the fourth through hole 126 is disposed at about half of the axial height of the main body of the stator structure 120 .
- the fourth through hole 126 is located at about half of the height of the main body, and then the distance between the fourth through hole 126 and one end of the main body is the same as the distance between the fourth through hole 126 and the main body.
- the distance between the other ends is similar or the same, so that the stator structure 120 and the rotor structure 130 on both sides of the fourth through hole 126 can have the same cooling effect, so that the cooling effect on the entire stator structure 120 and the rotor structure 130 is better.
- the structure 130 performs cooling to improve the cooling effect.
- the inner wall of the housing 110 is provided with a guide groove 118, located in the middle section 114 , and, both the first through hole 1142 and the second through hole 1144 communicate with the flow guide groove 118, specifically, the stator structure 120 is connected with the housing 110 to form the flow guide groove 118, and the side wall of the flow guide groove 118 is provided with The communication port communicates with other spaces in the casing 110 .
- the inner wall of the middle section 114 and the stator structure 120 form a guide groove 118, and then the refrigerant entering the casing 110 through the first through hole 1142 moves along the flow provided by the guide groove 118, thereby The movement of the refrigerant is constrained, so that the diversion groove 118 can be rationally designed to achieve a better cooling effect.
- Embodiment 6 is a diagrammatic representation of Embodiment 6
- two second through holes 1144 are further provided on the housing 110, and the flow guide groove 118 includes a first flow guide structure 1182 and a second flow guide structure 1182
- Two guide structures 1184 along the axial direction of the housing 110, a first communication port 1190 is provided on the side of the first guide structure 1182 away from the first through hole 1142, and a side of the second guide structure 1184 away from the first through hole 1142
- One side is provided with a second communication port 1192
- the first flow guiding structure 1182 is arranged on the inner wall of the middle section 114 in a spiral shape
- the second flow guiding structure 1184 is arranged on the inner wall of the middle section 114 in a spiral shape, wherein the first The flow guide structure 1182 and the second flow guide structure 1184 converge at the first through hole 1142, that is, the first flow guide structure 1182 and the second flow guide structure 1184 are respectively located on both sides of the first through hole 1142,
- the flow guide groove 118 includes a first flow guide structure 1182 and a second flow guide structure 1184, and the two flow guide structures respectively form a spiral shape on both sides of the first through hole 1142, so that the stator structure 120 is formed by Cooling from the middle position to both sides, and because of the spiral structure, the outside of the entire stator structure 120 can be in contact with the refrigerant, and the contact time between the refrigerant and the stator structure 120 is prolonged, so as to better take away the heat of the stator structure 120 To achieve a better cooling effect, and finally, the refrigerant in the first flow guide structure 1182 and the second flow guide structure 1184 can pass through different communication ports, and then flow out of the housing 110 through different second through holes 1144 .
- such a diversion structure can shorten the stroke of the refrigerant, thereby avoiding that the second half of the refrigerant flow has absorbed a certain amount of heat, resulting in a lower heat dissipation effect at the end, so that the entire heat dissipation effect is more uniform.
- the helical shape of the first flow guide structure 1182 may be a single helix or a multi-helix.
- the helical shape of the second flow guide structure 1184 can be a single helix, or a multi-helix.
- Embodiment 7 is a diagrammatic representation of Embodiment 7:
- a first retaining rib 1186 and a second retaining rib 1188 are arranged in the diversion groove 118, and the two are alternately arranged on the guide groove 118.
- the first through hole 1142 is located in the middle of the guide groove 118, specifically, the housing 110 is provided with two second through holes 1144, along the axial direction of the housing 110, the guide A first communication port 1190 is provided on a side of the flow channel 118 away from the first through hole 1142 , and a second communication port 1192 is provided on a side of the flow guide channel 118 away from the first through hole 1142 .
- the diversion groove 118 surrounds the entire middle section 114, the diversion groove 118 is formed with a bottom wall, a first side wall and a second side wall, the number of the first ribs 1186 can be one or more, and the second ribs The number of 1188 can be one or more, here we take more than one as an example for illustration.
- a plurality of first ribs 1186 are arranged on the first side wall, and the first ribs 1186 and the second side wall are spaced apart, and a plurality of second ribs 1188 are arranged on the second side wall, and the second ribs 1188 It is spaced from the first side wall, and a second rib 1188 is arranged between adjacent first ribs 1186, and a first rib 1186 is arranged between adjacent second ribs 1188, thereby forming Bending channel structure.
- a first retaining rib 1186 and a second retaining rib 1188 are arranged in the diversion groove 118, and one of them is connected to one side wall of the diversion groove 118, and the other is connected to the side wall of the diversion groove 118.
- the other side wall of the stator is connected to each other, and the two are staggered to form a curved flow space, thereby prolonging the flow path of the refrigerant, increasing the contact time between the refrigerant and the stator structure 120, and taking away the heat of the stator structure 120 better.
- a better cooling effect is achieved, and the refrigerant in the different diversion grooves 118 can flow out of the casing 110 through the second through hole 1144 at the final communication port.
- the lengths of the first ribs 1186 and the second ribs 1188 can take values, along the axial direction of the housing 110, less than or equal to one-tenth of the width of the flow guide groove 118, and greater than or equal to one-tenth of the width of the flow guide groove 118. Half.
- Embodiment 8 is a diagrammatic representation of Embodiment 8
- the guide groove 118 is an annular structure, and is arranged on the inner wall of the middle section 114 .
- the first through hole 1142 is located in the middle of the guide groove 118, specifically, the housing 110 is provided with two second through holes 1144, along the axial direction of the housing 110, the guide A first communication port 1190 is provided on a side of the flow channel 118 away from the first through hole 1142 , and a second communication port 1192 is provided on a side of the flow guide channel 118 away from the first through hole 1142 .
- the guide groove 118 surrounds the inner wall of the middle section 114 , so that the entire periphery of the stator structure 120 can be cooled by the refrigerant, thereby improving the cooling effect.
- Embodiment 9 is a diagrammatic representation of Embodiment 9:
- the first through hole 1142 has one, and is arranged in the middle position of the middle section 114, that is, with the housing 110 Based on the axial direction, the first through hole 1142 is located at approximately half the height of the middle section 114, and communicates with the guide groove 118. There are two second through holes 1144, and the two second through holes 1144 are respectively arranged in Both sides of the first through hole 1142 further realize bidirectional discharge of refrigerant.
- the first through hole 1142 is located in the middle of the middle section 114, so that the purpose of uniform cooling can be achieved on both sides of the stator structure 120 along the axial direction, and the stroke of the refrigerant on both sides are all within a reasonable range, so as to avoid the situation that the temperature of one side of the rotor structure 130 is too high, and improve the cooling effect, and the second through holes 1144 provided on both sides of the first through hole 1142 can quickly discharge and cool the compressor 100
- the final refrigerant is used to ensure the circulation effect of the refrigerant and improve the cooling effect of the compressor 100 .
- a The first communication port 1190 is provided with a second communication port 1192 on the second side wall.
- the first through hole 1142 communicates with the diversion port 118, and the first communication port The distance between 1190 is greater than or equal to one third of the outer diameter of the diversion groove 118 and less than or equal to the outer diameter of the diversion groove 118 .
- the distance between the first through hole 1142 and the diversion port that communicates with the diversion groove 118, and the second communication port 1192 is greater than or equal to one-third of the outer diameter of the diversion groove 118
- the outer diameter is less than or equal to the outer diameter of the outer diameter of the guide groove 118 .
- the distance between the first through hole 1142 and the first communication port 1190, which communicates with the flow guide groove 118, is greater than or equal to one-third of the guide
- the outer diameter of the flow groove 118 ensures that the refrigerant entering the housing 110 through the diversion port flows a long enough distance before being discharged from the first communication port 1190 , thereby improving the cooling effect.
- the distance between the first through hole 1142 and the diversion port that communicates with the diversion groove 118, and the second communication port 1192 is greater than or equal to one-third of the outer diameter of the diversion groove 118 outer diameter, so as to ensure that the refrigerant entering the casing 110 through the diversion port flows a long enough distance and then is discharged from the second communication port 1192, thereby improving the cooling effect.
- first communication port 1190 faces the first segment 112
- second communication port 1192 faces the second segment 116 .
- the refrigerant discharged from the diversion groove 118 through the first communication port 1190 can participate in the cooling of the end of the stator structure 120 and the end of the first bearing structure 140
- the refrigerant discharged from the diversion groove 118 through the second communication port 1192 can participate in cooling To the cooling of the end of the stator structure 120 , and the end of the second bearing structure 150 .
- the compressor 100 is a horizontal compressor 100, and the diversion port is lower than one-third of the outer diameter of the diversion groove 118; the first communication port 1190 is higher than two-thirds of the outer diameter of the diversion groove 118 , and the second communication port 1192 is higher than two-thirds of the outer diameter of the diversion groove 118 .
- the compressor 100 is a horizontal compressor 100, and the diversion port is lower than one-third of the outer diameter of the diversion groove 118, so that the refrigerant enters from the lower part, and the first communication port 1190 is higher than Two-thirds of the outer diameter of the diversion groove 118, so that the refrigerant is discharged from the upper part, and then the lower end enters the upper end to be discharged.
- the refrigerant will flow in the housing 110 for a longer time, and also The possibility of interruption of the refrigerant flow in the casing 110 can be reduced, thereby improving the cooling effect.
- the compressor 100 is a horizontal compressor 100, the diversion port is lower than one-third of the outer diameter of the diversion groove 118, so that the refrigerant enters from the lower part, and the second communication port 1192 is higher than the outer diameter of the diversion groove 118 Two-thirds of the refrigerant is discharged from the upper part, and then the lower end enters the design of the upper end.
- the refrigerant will flow in the shell 110 for a longer time, and it can also reduce the flow of the refrigerant in the shell. It is possible to stop the flow when the flow is interrupted in 110, so as to improve the cooling effect.
- the first compression structure 160 includes: a first installation part 162, which is arranged at one end of the casing 110; An impeller 164 is rotatable relative to the first mounting portion 162, and one end of the first impeller 164 and the rotor structure 130 is connected through the first mounting portion 162, and the first impeller 164 and/or the rotor structure 130 are connected to the first mounting portion There is a first channel 168 between 162; the first compression body 166 is installed on the first installation part 162 and/or the housing 110, and a first compression chamber 1662 is arranged in the first compression body 166; the second compression structure 170 includes : the second mounting part 172 is located at the other end of the housing 110; the second impeller 174 is rotatable relative to the second mounting part 172, and the second impeller 174 and the other end of the rotor structure 130 pass through the second mounting part 172 connected, and there is a second
- the first compression structure 160 includes a first installation part 162, a first impeller 164, and a first compression body 166, wherein the first installation part 162 is connected to the housing 110, and the first compression body 166 has a first A compression chamber 1662, the first impeller 164 can realize the compression of the refrigerant in the first compression chamber 1662, and there is a first channel 168 between the first installation part 162 and the first impeller 164 and/or the rotor structure 130, Therefore, when the refrigerant is compressed, the refrigerant may leak into the first section 112 through the first channel 168 , thereby cooling the first bearing structure 140 .
- the second compression structure 170 includes a second installation part 172, a second impeller 174, and a second compression body 176, wherein the second installation part 172 is connected to the casing 110, and the second compression body 176 has a second compression chamber 1762,
- the second impeller 174 can realize the compression of the refrigerant in the second compression chamber 1762, and there is a second channel 178 between the second mounting part 172 and the second impeller 174 and/or the rotor structure 130, so that when compressing the refrigerant, The refrigerant can leak into the second section 116 through the second channel 178 , so as to cool the second bearing structure 150 .
- the first mounting part 162 includes: a first mounting plate 1622 connected with the housing 110; a first bushing 1624 mounted on the first
- the mounting plate 1622 has a first channel 168 between the first impeller 164 and/or the rotor structure 130 and the first shaft sleeve 1624
- the second mounting part 172 includes: a second mounting plate 1722 connected with the housing 110;
- the shaft sleeve 1724 is installed on the second mounting plate 1722 , and there is a second channel 178 between the second impeller 174 and/or the rotor structure 130 and the second shaft sleeve 1724 .
- the first mounting portion 162 includes a first mounting plate 1622 and a first bushing 1624, and a first channel 168 is formed between the first impeller 164 and/or the rotor structure 130 and the first bushing 1624, so that When the refrigerant is compressed, the refrigerant can leak into the first section 112 through the first channel 168, thereby cooling the first bearing structure 140, and the first shaft sleeve 1624 can increase the service life of the first mounting part 162 and reduce the Wear as the impeller 164 rotates.
- the second mounting part 172 includes a second mounting plate 1722 and a second bushing 1724, and a second channel 178 is formed between the second impeller 174 and/or the rotor structure 130 and the second bushing 1724, so that when the refrigerant is compressed, the refrigerant can
- the second channel 178 leaks into the second section 116, so as to realize the cooling of the second bearing structure 150, and the second shaft sleeve 1724 can increase the service life of the second mounting part 172, and reduce the time when the second impeller 174 rotates. wear and tear.
- first shaft sleeve 1624 is a first sealing sleeve
- second shaft sleeve 1724 is a second sealing sleeve
- the first bearing structure 140 and the second bearing structure 150 are electromagnetic bearing structures.
- the first bearing structure 140 and the second bearing structure 150 are electromagnetic bearing structures, and the electromagnetic bearing structure uses magnetic force to make the inner ring in a suspended state, thereby reducing friction and increasing the speed, and the gap of the electromagnetic bearing structure The refrigerant can flow through to improve the cooling effect on the first bearing structure 140 and the second bearing structure 150 .
- a communication pipe 180 is connected between the first compression structure and the second compression structure 170 .
- the first compression chamber 1662 communicates with the communication pipe 180, and then the refrigerant compressed for the first time by the first impeller 164 enters the first compression chamber 1662, flows into the second impeller 174 of the second compression structure 170, and then After being pressurized by the second impeller 174, it is further compressed in the second compression chamber 1762, thereby forming a second stage of compression.
- the refrigerant in the second compression structure 170 can be discharged into the condenser.
- the first compression structure 160 and the second compression structure 170 are connected through a communication pipe 180 , so as to realize two-stage compression and improve the compression effect of the compressor 100 .
- FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 indicate the flow direction of the refrigerant.
- the evaporator exhausts air to the first compression structure 160, the first compression structure 160 compresses the refrigerant, and part of the refrigerant enters the housing 110 to cool the first bearing structure 140, and this part of the refrigerant passes through the first bearing After the structure 140 , it enters the middle section 114 and can be discharged through the second through hole 1144 .
- Another part of the refrigerant in the first compression structure 160 is discharged to the second compression structure 170 through the connecting pipe, and a part of the refrigerant still enters the shell 110 to cool the second bearing structure 150 , and this part of the refrigerant passes through the first bearing structure 140 After that, it enters the middle section 114 and can be discharged from the second through hole 1144 .
- Another part of the refrigerant in the second compression structure 170 is discharged into the condenser.
- the refrigerant entering the casing 110 from the first compression structure 160 and the second compression structure 170 is a gaseous refrigerant.
- the refrigerant in the condenser enters the casing 110 through the first through hole 1142, and can pass through the guide groove 118 to cool the stator structure 120. At the same time, a part of the refrigerant can enter the air gap through the fourth through hole 126 to cool the stator structure. 120 and the outside of the rotor structure 130 are cooled, and another part of the refrigerant located in the guide groove 118 is discharged from the guide groove 118 through the first communication port 1190 and the second communication port 1192, and can be used for the first bearing structure 140 and the second bearing structure 140.
- the bearing structure 150 is cooled, and the refrigerant in the casing 110 is finally discharged into the evaporator through the second through hole 1144 .
- part of the refrigerant entering the flow guide groove 118 flows around the flow guide groove 118 , and the other part enters the air gap through the fourth through hole 126 .
- the refrigerant entering the guide groove 118 through the first through hole 1142 passes through the first guide structure 1182 and the second guide structure 1184 respectively, and then is discharged from the first communication port 1190 and the second communication port 1192 Diversion groove 118.
- the refrigerant entering the diversion groove 118 through the first through hole 1142 is baffled by the first rib 1186 and the second rib 1188 respectively, and then flows through the first communication port 1190 and the second rib 1188 .
- the two communication ports 1192 are discharged from the diversion groove 118 .
- the refrigerant entering the diversion groove 118 through the first through hole 1142 passes through the diversion groove 118 respectively, and then exits the diversion groove 118 through the first communication port 1190 and the second communication port 1192 .
- the compressor 100 provided in the present application includes a three-way refrigerant circuit for cooling the stator structure 120 , the rotor structure 130 , the first bearing structure 140 and the second bearing structure 150 respectively.
- Cooling of the stator structure 120 the outer side of the stator structure 120 and the inner side of the housing 110 form an annular flow guide groove 118, and the flow guide groove 118 allows the refrigerant to enter the annular flow guide groove 118, and the stator structure 120 is cooled through the annular flow guide groove 118, And the cooling winding on the stator structure 120 and the ends of the first bearing structure 140 and the second bearing structure 150 flow out from the communication port from both sides.
- Cooling of the rotor structure 130 the stator structure 120 is provided with a fourth through hole 126 , and the refrigerant enters the fourth through hole 126 to cool the surface of the rotor structure 130 .
- the actual calorific value 0, 1 or more fourth through holes 126 can be provided.
- Cooling of the first bearing structure 140 the refrigerant gas in the main circuit of the compressor 100 enters the interior of the housing 110 from the rear side of the first impeller 164 through the seal of the rear end of the first impeller 164, passes through the first bearing structure 140 and It performs cooling, and at the same time, part of the refrigerant in the guide groove 118 that cools the stator structure 120 will also participate in the cooling of the first bearing structure 140 at the same time.
- Cooling of the second bearing structure 150 the refrigerant gas in the main circuit of the compressor 100 enters the interior of the housing 110 from the rear side of the second impeller 174 through the seal of the rear end of the second impeller 174, passes through the second bearing structure 150 and is opposite to the second bearing structure 150. It performs cooling, and at the same time, part of the refrigerant cooling the stator structure 120 in the guide groove 118 will also participate in the cooling of the second bearing structure 150 at the same time.
- the compressor 100 is a horizontal compressor 100, and a communication port is arranged on the left and right sides of the diversion groove 118, and the position of the communication port is higher than 2/3 of the diameter of the annular flow channel.
- the diversion groove 118 has three arrangements, spiral type, baffle type and straight-through type.
- the stator structure 120 is provided with a fourth through hole 126 for cooling the rotor structure 130.
- the fourth through hole 126 is lower than the position of the communication port. According to the difference in the calorific value of the rotor structure 130, the fourth through hole 126 can be 0, 1 or more.
- the first impeller 164 and the second impeller 174 are arranged on both sides of the compressor 100 respectively, and the rear end seal of the first impeller 164 enters the housing 110 to cool the first bearing structure 140, and the second impeller 174 seals the rear end of the housing 110.
- the second bearing structure 150 is cooled.
- the present application provides a refrigeration system, including: the compressor 100 provided in any one of the above embodiments.
- the refrigerating system proposed in this application includes the compressor 100 provided in any of the above-mentioned embodiments, and thus has all the beneficial effects of the compressor 100 provided in any of the above-mentioned embodiments, and will not be described here one by one.
- Embodiment 17 further includes: an evaporator and a condenser, the evaporator is connected to the first compression structure 160 of the compressor 100, and is also connected to the second through hole 1144 of the compressor 100 Connection; the condenser is connected with the first through hole 1142 of the compressor 100 and also connected with the second compression structure 170 of the compressor 100 .
- the refrigeration equipment further includes an evaporator and a condenser, and the gaseous refrigerant discharged from the evaporator is compressed by the first compression structure 160 and the second compression structure 170, and leaks into the casing 110 to cool the compressor 100, And, finally, the refrigerant discharged from the second compression structure 170 enters the condenser.
- the liquid refrigerant discharged from the condenser enters the casing 110 through the first through hole 1142 , and after cooling the compressor 100 , it forms a gaseous refrigerant and enters the evaporator.
- the cooling of the compressor 100 is realized while exchanging heat in the refrigeration system.
- the present application provides a refrigeration device, including: the compressor 100 provided in any one of the above embodiments; or the refrigeration system provided in any one of the above embodiments.
- the refrigerating equipment provided by this application includes the compressor 100 provided in any of the above embodiments or the refrigeration system provided in any of the above embodiments, therefore, it has the compressor 100 provided in any of the above embodiments or the compressor 100 provided in any of the above embodiments All the beneficial effects of the refrigeration system provided by one embodiment will not be stated here one by one.
- the refrigeration equipment may be equipment such as a refrigerator or an air conditioner.
- connection can be fixed connection, detachable connection, or integral connection; “connection” can be directly or indirectly through an intermediary.
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Abstract
Description
Claims (16)
- 一种压缩机,其中,包括:壳体,所述壳体由一端到另一端包括第一段、中间段和第二段,所述中间段设置有第一通孔和第二通孔,所述第一通孔和所述第二通孔均连通所述壳体内部和外部;定子结构,安装于所述壳体内,位于所述中间段;转子结构,可转动地穿设于所述定子结构;第一轴承结构,安装于所述第一段内;第二轴承结构,安装于所述第二段内,且所述转子安装于所述第一轴承结构和所述第二轴承结构;第一压缩结构,设于所述第一段背离所述中间段的一端,所述第一压缩结构的内部通过所述第一轴承结构与中间段的内部相连通;第二压缩结构,设于所述第二段背离所述中间段的一端,所述第二压缩结构的内部通过第二轴承结构与中间段的内部相连通。
- 根据权利要求1所述的压缩机,其中,所述定子结构包括:主体,所述主体包括相连通第三通孔和第四通孔,所述第三通孔沿着所述主体的轴向设置,所述转子结构穿设于所述第三通孔,所述第四通孔沿着所述主体的径向设置。
- 根据权利要求2所述的压缩机,其中,所述第四通孔的数量为一个或多个,在所述第四通孔的数量为多个的情况下,多个所述第四通孔均布于所述主体。
- 根据权利要求2所述的压缩机,其中,沿所述主体的轴向,所述第四通孔位于所述主体的中部位置。
- 根据权利要求1至4中任一项所述的压缩机,其中,所述中间段的内壁设置有导流槽。
- 根据权利要求5所述的压缩机,其中,所述导流槽包括:第一导流结构,呈螺旋状设于所述中间段内,与所述第一通孔相连通;第二导流结构,呈螺旋状设于所述中间段内,与所述第一通孔相连通。
- 根据权利要求5所述的压缩机,其中,还包括:至少一个第一挡筋和至少一个第二挡筋,所述第一挡筋与所述导流槽的一侧侧壁相连接,所述第二挡筋与所述导流槽的另一侧侧壁相连接,沿所述壳体的周向,所述第一挡筋和所述第二挡筋依次交错地设于所述导流槽。
- 根据权利要求5所述的压缩机,其中,所述导流槽呈环形结构,环绕于所述中间段的内壁。
- 根据权利要求5所述的压缩机,其中,沿所述壳体的轴向,所述第一通孔位于所述中间段的中部位置,并与所述导流槽相连通,所述第二通孔的数量为两个,分别设置在所述中间段的两侧位置,并与所述导流槽相连通。
- 根据权利要求5所述的压缩机,其中,所述压缩机为卧式压缩机,所述导流槽的两侧侧壁均设置连通口,所述导流口低于所述导流槽外径的三分之一;所述连通口高于所述导流槽外径的三分之二。
- 根据权利要求1至3中任一项所述的压缩机,其中,所述第一压缩结构包括:第一压缩腔室和第一通道,所述第一通道连通所述第一压缩腔室和壳体内部;所述第二压缩结构包括:第二压缩腔室和第二通道,所述第二通道连通所述第二压缩腔室和壳体内部。
- 根据权利要求1至3中任一项所述的压缩机,其中,所述第一轴承结构为电磁轴承结构,所述第二轴承结构为电磁轴承结构。
- 根据权利要求1至3中任一项所述的压缩机,其中,还包括:连通管,连通所述第一压缩结构和所述第二压缩结构。
- 一种制冷***,其中,包括:如权利要求1至13中任一项所述的压缩机。
- 根据权利要求14所述的制冷***,其中,还包括:蒸发器,与所述压缩机的第一压缩结构和所述压缩机的第二通孔相连接;冷凝器,与所述压缩机的第一通孔和所述压缩机的第二压缩结构相连接。
- 一种制冷设备,其中,包括:如权利要求1至13中任一项所述的压缩机;或如权利要求14或15所述的制冷***。
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- 2021-09-29 WO PCT/CN2021/121780 patent/WO2022237057A1/zh active Application Filing
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