WO2014103320A1 - 密閉型圧縮機及びそれを備える冷凍装置 - Google Patents
密閉型圧縮機及びそれを備える冷凍装置 Download PDFInfo
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- WO2014103320A1 WO2014103320A1 PCT/JP2013/007639 JP2013007639W WO2014103320A1 WO 2014103320 A1 WO2014103320 A1 WO 2014103320A1 JP 2013007639 W JP2013007639 W JP 2013007639W WO 2014103320 A1 WO2014103320 A1 WO 2014103320A1
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- Prior art keywords
- cylinder
- hermetic compressor
- oil
- oil groove
- compressor according
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0223—Lubrication characterised by the compressor type
- F04B39/023—Hermetic compressors
- F04B39/0238—Hermetic compressors with oil distribution channels
- F04B39/0246—Hermetic compressors with oil distribution channels in the rotating shaft
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- 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
- F25B31/002—Lubrication
- F25B31/004—Lubrication oil recirculating arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0223—Lubrication characterised by the compressor type
- F04B39/023—Hermetic compressors
- F04B39/0238—Hermetic compressors with oil distribution channels
- F04B39/0246—Hermetic compressors with oil distribution channels in the rotating shaft
- F04B39/0253—Hermetic compressors with oil distribution channels in the rotating shaft using centrifugal force for transporting the oil
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/02—Lubrication
- F04B39/0284—Constructional details, e.g. reservoirs in the casing
- F04B39/0292—Lubrication of pistons or cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
-
- 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
-
- 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
- F25B31/023—Compressor arrangements of motor-compressor units with compressor of reciprocating-piston type
Definitions
- the present invention relates to a hermetic compressor used in a home electric refrigerator-freezer or a showcase and a refrigeration apparatus including the same.
- FIG. 15 is a longitudinal sectional view of a hermetic compressor disclosed in Patent Document 1.
- 16 is a front view showing a cylinder and a cylinder block of the hermetic compressor shown in FIG.
- the hermetic compressor 2 disclosed in Patent Document 1 includes a hermetic container 11, and a frame 12 is elastically placed in the hermetic container 11 via a spring 13. It is supported by.
- the electric motor unit 8 is disposed at the lower part of the frame 12, and the compression mechanism unit 7 is disposed at the upper part of the frame 12.
- the refrigerant gas 5 is enclosed in the sealed container 11, and refrigerating machine oil 14 is stored at the bottom of the sealed container 11.
- the electric motor unit 8 includes a rotating shaft 17 having a main shaft portion 15 and an eccentric shaft portion 16 eccentric to the main shaft portion 15, a rotor 18, and a stator 19.
- An oil pump 22 is attached to the lower end portion of the main shaft portion 15, and an oil supply passage 23 is formed in the rotary shaft 17.
- the compression mechanism unit 7 includes a cylinder 27 formed in the cylinder block 28, a cylinder chamber 29 that is a space in the cylinder 27, and the piston 6.
- An oil reservoir 41 is formed in a portion of the cylinder block 28 located on the outer peripheral side of the cylinder 27.
- the oil reservoir 41 is provided with a plurality of plate-like protrusions 43 extending along the center line of the cylinder 27. As shown in FIG. 16, the protrusions 43 are formed so as to be sequentially higher along the rotation direction of the rotary shaft 17.
- a recess 45 is formed between the adjacent protrusions 43, respectively. As shown in FIG. 15, the bottom surface 38 of the recess 45 is inclined so that the refrigerating machine oil 14 flows down from the top dead center side to the bottom dead center side of the cylinder 27.
- the refrigerating machine oil 14 flowing through the oil supply passage 23 and scattered from the upper end of the eccentric shaft part 16 is stored in the recessed part 45, and the refrigerating machine oil 14 stored in the recessed part 45 is supplied to the sliding part of the cylinder 27 and the piston 6. It becomes easy to be done.
- the cylinder 27 is heated by the frictional heat due to the reciprocating motion of the piston 6 and the compression heat of the refrigerant gas 5, so that the refrigerating machine oil 14 accumulated in the oil reservoir 41 on the outer peripheral side of the cylinder 27 Heat is transferred through the pipe and becomes high temperature.
- the present invention solves the above-described conventional problems, and suppresses the temperature rise of the cylinder and also prevents the high-temperature oil heated by the heat transfer through the cylinder from entering the compression chamber, thereby improving the efficiency.
- An object of the present invention is to provide a high-pressure hermetic compressor.
- a hermetic compressor includes an electric element, a compression element driven by the electric element, the electric element and the compression element, and oil is stored.
- a cylinder having a main shaft, an eccentric shaft, and a crankshaft having an oil supply mechanism, a main bearing that supports the main shaft of the crankshaft, and a cylinder that forms a compression chamber.
- a first oil groove extending in the direction is provided.
- the oil sprayed from the eccentric shaft is also supplied to the first oil groove formed on the upper outer peripheral surface of the cylinder.
- the oil flowing through the first oil groove can effectively absorb heat from the cylinder.
- the high-temperature oil that has absorbed the heat of the cylinder flows in the circumferential direction of the cylinder along the first oil groove and then flows down to the bottom of the sealed container, so that it flows into the gap formed between the piston and the cylinder. Is suppressed, and high temperature oil can be prevented from entering the compression chamber. Therefore, the temperature rise of the refrigerant gas sucked into the compression chamber can be suppressed, and the volume efficiency can be improved.
- the hermetic compressor and the refrigeration apparatus including the same can suppress the temperature rise of the refrigerant gas sucked into the compression chamber and can improve the volumetric efficiency, so that the efficiency of the hermetic compressor is improved. be able to.
- FIG. 1 is a longitudinal sectional view of a hermetic compressor according to the first embodiment.
- FIG. 2 is a cross-sectional view of the hermetic compressor according to the first embodiment.
- FIG. 3 is an enlarged cross-sectional view of the vicinity of the compression element of the hermetic compressor shown in FIGS. 1 and 2.
- FIG. 4 is an enlarged cross-sectional view of the vicinity of the cylinder of the hermetic compressor shown in FIGS. 1 and 2.
- FIG. 5 is a schematic diagram illustrating a schematic configuration when the cylinder block of the hermetic compressor according to the first modification of the first embodiment is viewed from above.
- FIG. 6 is a schematic diagram illustrating a cylinder block of a hermetic compressor according to the second modification of the first embodiment.
- FIG. 1 is a longitudinal sectional view of a hermetic compressor according to the first embodiment.
- FIG. 2 is a cross-sectional view of the hermetic compressor according to the first embodiment.
- FIG. 3 is an enlarged cross
- FIG. 7 is a longitudinal sectional view of the hermetic compressor according to the second embodiment.
- FIG. 8 is an enlarged cross-sectional view of the vicinity of the cylinder of the hermetic compressor shown in FIG.
- FIG. 9 is a longitudinal sectional view of the hermetic compressor according to the third embodiment.
- FIG. 10 is a perspective view from above of the cylinder block in the hermetic compressor shown in FIG. 9.
- FIG. 11 is a longitudinal sectional view of a hermetic compressor according to the fourth embodiment.
- FIG. 12 is a perspective view from below of the cylinder block in the hermetic compressor shown in FIG. 11.
- FIG. 13 is a perspective view of a rotor in the hermetic compressor shown in FIG. FIG.
- FIG. 14 is a schematic diagram showing a schematic configuration of the refrigeration apparatus according to Embodiment 5.
- FIG. 15 is a longitudinal sectional view of a hermetic compressor disclosed in Patent Document 1.
- FIG. 16 is a front view showing a cylinder and a cylinder block of the hermetic compressor shown in FIG.
- the hermetic compressor according to the first embodiment includes an electric element, a compression element driven by the electric element, a hermetic container in which the electric element and the compression element are accommodated, and oil is stored.
- the element includes a crankshaft having a main shaft, an eccentric shaft, and an oil supply mechanism, a main bearing that supports the main shaft of the crankshaft, a cylinder block having a cylinder that forms a compression chamber, a piston that reciprocates in the cylinder, and an eccentricity And a first oil groove extending along the circumferential direction of the cylinder.
- the first oil groove extends along the circumferential direction of the cylinder.
- the oil sprayed from the eccentric shaft is supplied to the first oil groove formed on the upper outer peripheral surface of the cylinder. For this reason, the oil flowing through the first oil groove can effectively absorb heat from the cylinder.
- the high-temperature oil that has absorbed the heat of the cylinder flows through the first oil groove and flows down to the bottom of the sealed container, it is suppressed from flowing into the gap formed between the piston and the cylinder. Intrusion of high-temperature oil can be suppressed. Therefore, the temperature rise of the refrigerant gas sucked into the compression chamber can be suppressed, and the volume efficiency can be improved.
- the eccentric shaft of the crankshaft has a gap formed between the first oil distribution mechanism that distributes oil to the first oil groove and the piston and the cylinder.
- a second oil spraying mechanism for spraying oil may be provided.
- the oil sprayed by the second oil spraying mechanism can improve the lubrication between the piston and the cylinder, reduce the sliding loss, and improve the sealing performance between the piston and the cylinder. Can be made. For this reason, since the volumetric efficiency of the refrigerant gas can be improved, the efficiency of the hermetic compressor can be further increased.
- the compression element includes a discharge pipe for discharging the refrigerant compressed in the compression chamber, and a discharge chamber provided in the middle of the discharge pipe. Also good.
- the electric element may be configured to be inverter-driven at a plurality of operating frequencies.
- FIG. 1 is a longitudinal sectional view of a hermetic compressor according to the first embodiment.
- FIG. 2 is a cross-sectional view of the hermetic compressor according to the first embodiment.
- FIG. 3 is an enlarged cross-sectional view of the vicinity of the compression element of the hermetic compressor shown in FIGS. 1 and 2.
- FIG. 4 is an enlarged cross-sectional view of the vicinity of the cylinder of the hermetic compressor shown in FIGS. 1 and 2.
- the hermetic compressor 100 includes a hermetic container 101 and a compressor main body 107 accommodated in the hermetic container 101.
- the compressor main body 107 includes an electric element 103 and a compression element 105 driven by the electric element 103, and is elastically supported by the sealed container 101 by a suspension spring 109.
- the sealed container 101 is formed by drawing a steel plate.
- the sealed container 101 is provided with a suction pipe 115 and a discharge pipe 117 that communicate between the inside and outside of the sealed container 101.
- the suction pipe 115 is configured to introduce the refrigerant gas supplied from the refrigeration apparatus (see FIG. 14) into the sealed container 101.
- the discharge pipe 117 is configured to supply the refrigerant gas 111 compressed by the compression element 105 to the refrigeration apparatus.
- a refrigerant gas 111 such as hydrocarbon-based R600a having a low global warming potential is sealed in a low temperature state at the same pressure as the low pressure side of the refrigeration apparatus. Oil 113 for lubrication is enclosed at the bottom of the.
- the electric element 103 is disposed below the compression element 105 (arranged below the sealed container 101), and the inverter device 200 is electrically connected via appropriate wiring (not shown). ing. Thereby, the electric element 103 is inverter-driven at a plurality of operating frequencies.
- the electric element 103 includes a stator 177 and a rotor 179.
- the stator 177 is fixed to a cylinder block 121 described later by bolts (not shown). Inside the stator 177, a hollow cylindrical columnar rotor 179 is fixed to a main shaft 129 of a crankshaft 119, which will be described later, by shrink fitting or the like so as to be positioned coaxially with the stator 177.
- the compression element 105 includes a crankshaft 119, a cylinder block 121, a piston 123, a connecting means 125, and the like.
- the crankshaft 119 includes a main shaft 129, a flange portion provided at the upper end of the main shaft 129, and an eccentric shaft 127 extending from the upper surface of the flange portion.
- the main shaft 129 and the eccentric shaft 127 are disposed such that the shaft centers are directed in the vertical direction.
- crankshaft 119 (more precisely, the main shaft 129) is immersed in the oil 113, and the crankshaft 119 is provided with an oil supply mechanism 131 that supplies the oil 113 to the upper end of the eccentric shaft 127. .
- the oil supply mechanism 131 includes an upwardly extending hole (not shown) provided in the main shaft 129, a spiral groove formed in the surface of the main shaft 129, and a connection hole 130 (inside the eccentric shaft 127). Etc.).
- the eccentric shaft 127 of the crankshaft 119 is provided with a first oil spraying mechanism 143 and a second oil spraying mechanism 145.
- the first oil spreading mechanism 143 is disposed at a position higher than the second oil spreading mechanism 145.
- the first oil spraying mechanism 143 is configured by an opening of a connection hole 130 provided at the upper end of the eccentric shaft 127.
- the second oil spreading mechanism 145 is configured by a hole provided on the side surface of the eccentric shaft 127 and communicating with the connection hole 130.
- the oil 113 conveyed to the eccentric shaft 127 by the oil supply mechanism 131 is sprayed to a first oil groove 139 described later by the first oil spray mechanism 143, and the piston 123 and the cylinder 135 are sprayed by the second oil spray mechanism 145. It is sprayed in the gap formed between.
- the first oil spraying mechanism 143 is configured by the opening provided at the upper end of the eccentric shaft 127, but is not limited thereto.
- the first oil spreading mechanism 143 may be provided on the side surface of the eccentric shaft 127 as long as it is disposed at a position higher than the second oil spreading mechanism 145.
- the cylinder block 121 is provided with a bearing (main bearing) 137 having a cylindrical inner surface whose axis is directed in the vertical direction.
- a main shaft 129 of a crankshaft 119 is rotatably inserted into the bearing 137.
- the cylinder block 121 is provided with a cylindrical cylinder 135 whose axis is oriented in the horizontal direction.
- a piston 123 is inserted into the cylinder 135 so as to freely advance and retract.
- An eccentric shaft 127 of a crankshaft 119 is connected to the piston 123 via a connecting means 125.
- a valve plate 151 including a suction hole 147 and a discharge hole 149 is disposed on an end surface of the cylinder 135 far from the crankshaft 119 (end surface on the top dead center side of the cylinder 135).
- the valve plate 151 is provided with a suction valve 153 that opens and closes the suction hole 147.
- the valve plate 151 forms a compression chamber 133 together with the piston 123.
- valve plate 151 is fixed to the cylinder block 121 by a head bolt 157 together with a cylinder head 155 disposed so as to cover the valve plate 151.
- the cylinder head 155 has a discharge space 159 from which the refrigerant gas 111 is discharged.
- the discharge space 159 communicates with a discharge pipe 117 that penetrates and is fixed to the sealed container 101 via a discharge pipe 161.
- a hollow discharge chamber 163 is provided in the middle of the discharge pipe 161.
- a suction muffler 165 is sandwiched between the valve plate 151 and the cylinder head 155.
- the suction muffler 165 is molded mainly from a synthetic resin such as PBT (polybutylene terephthalate) to which glass fiber is added, and includes a muffler body 173, a tail pipe 167, and a communication pipe 169.
- a muffler space 171 is formed inside the muffler body 173.
- the tail pipe 167 includes a suction port 175 having one end communicating with the muffling space 171 and the other end opening into the sealed container 101, and is configured to guide the refrigerant gas 111 into the suction muffler 165.
- the communication pipe 169 is arranged so that one end opens into the muffler space 171 and the other end communicates with the compression chamber 133, and is configured to guide the refrigerant gas 111 in the suction muffler 165 into the compression chamber 133. Has been.
- a side wall 141A and a side wall 141B extending along the radial direction and the circumferential direction of the cylinder 135 are disposed on the upper outer peripheral surface of the cylinder 135.
- a first oil groove 139A extending along the circumferential direction of the cylinder 135 is formed between the side wall 141A and the end of the cylinder 135 far from the crankshaft 119, and the side wall 141A and the side wall 141B
- a first oil groove 139B extending along the circumferential direction of the cylinder 135 is formed therebetween.
- the shape of the side wall 141A and the side wall 141B viewed from the axial direction of the cylinder 135 can be arbitrarily set, and may be formed in a rectangular shape or a semicircular shape. Further, the side wall 141 ⁇ / b> A and the side wall 141 ⁇ / b> B are formed in a substantially linear shape when viewed from above the hermetic compressor 100.
- the height (size) of the side wall 141A and the side wall 141B is arbitrarily set within a range in which the oil 113 sprayed from the first oil spraying mechanism 143 is supplied to the first oil groove 139A and the first oil groove 139B.
- the first oil groove 139A and the first oil groove 139B are set to the same height.
- the present invention is not limited to this.
- the side walls may be provided at one place or at four places.
- the side wall is provided at the bottom dead center side end of the cylinder 135 from the viewpoint of preventing the oil 113 sprayed on the upper portion of the cylinder 135 from entering the gap formed between the piston 123 and the cylinder 135. May be.
- the interval between adjacent side walls can be arbitrarily set, and the side walls may be arranged at a constant interval, or the side walls may be arranged at different intervals. May be.
- first oil groove 139A and the first oil groove 139B are formed in an arc shape along the outer peripheral surface of the cylinder 135, and are formed so as to be inclined downward from the central portion toward both ends.
- first oil groove 139A and first oil groove 139B are formed so as to draw a semicircle concentrically with cylinder 135.
- the inverter device 200 supplies electric power supplied from a commercial power source to the electric element 103.
- a current flows through the stator 177 of the electric element 103, a magnetic field is generated in the stator 177, and the rotor 179 fixed to the main shaft 129 rotates, whereby the main shaft 129 of the crankshaft 119 rotates.
- the eccentric rotation of the eccentric shaft 127 accompanying the rotation of the main shaft 129 is converted by the connecting means 125, and the piston 123 is reciprocated in the cylinder 135. Then, when the volume of the compression chamber 133 is changed, the refrigerant gas 111 in the sealed container 101 is sucked into the compression chamber 133 and compressed.
- the suction valve 153 starts to open due to the difference between the pressure in the compression chamber 133 and the pressure in the suction muffler 165.
- the low-temperature refrigerant gas 111 returned from the refrigeration cycle is once released into the sealed container 101 from the suction pipe 115, and then sucked from the suction port 175 of the suction muffler 165, through the tail pipe 167, It is introduced into the silence space 171.
- the introduced refrigerant gas 111 flows into the compression chamber 133 through the communication pipe 169.
- the discharge valve (not shown) starts to open due to the difference between the pressure in the compression chamber 133 and the pressure in the discharge space 159.
- the compressed refrigerant gas 111 is discharged from the discharge hole 149 to the discharge space 159 until the piston 123 reaches the top dead center. Then, the refrigerant gas 111 discharged into the discharge space 159 passes through the discharge pipe 161, the discharge chamber 163, and the discharge pipe 117 in order, and is sent out to a refrigeration apparatus (not shown).
- the oil 113 stored in the bottom of the sealed container 101 is sucked from the lower portion of the crankshaft 119 by centrifugal force due to the rotation of the crankshaft 119, and then conveyed to the upper portion of the compression element 105 by the oil supply mechanism 131.
- the oil 113 conveyed to the compression element 105 lubricates the sliding portions such as the crankshaft 119 and the bearing 137 and then is conveyed to the eccentric shaft 127 through the connection hole 130. Then, as shown by the arrows in FIG. 3, the oil is sprayed by the first oil spraying mechanism 143 and the second oil spraying mechanism 145 provided on the eccentric shaft 127.
- the oil 113 sprayed from the first oil spraying mechanism 143 is supplied to the first oil groove 139A and the first oil groove 139B provided on the upper outer peripheral surface of the cylinder 135. Further, the oil 113 sprayed from the second oil spraying mechanism 145 is supplied to a gap formed between the piston 123 and the cylinder 135.
- the cylinder 135 is heated to a high temperature by the frictional heat due to the reciprocating motion of the piston 123 and the compression heat of the refrigerant gas 111. Therefore, in general, even if the refrigerant gas 111 having a low temperature and high density is sucked into the compression chamber 133, the refrigerant gas 111 is heated by the high temperature cylinder 135, and the density of the refrigerant gas 111 is reduced at the time of entering the compression stroke. As a result, the volumetric efficiency may be reduced.
- the first oil groove 139A and the first oil groove 139B are formed by disposing the side wall 141A and the side wall 141B on the upper outer peripheral surface of the cylinder 135. Yes.
- the oil 113 sprayed from the eccentric shaft 127 adheres to the side wall 141A and the side wall 141B, and flows along the side wall 141A and the side wall 141B.
- the first oil groove 139A and the first oil groove 139B are supplied.
- the oil 113 supplied to the first oil groove 139A and the first oil groove 139B absorbs the heat of the cylinder 135 while flowing through the first oil groove 139A and the first oil groove 139B. Reduce. Further, while the oil 113 flows along the side wall 141A and the side wall 141B, the oil 113 adsorbs heat from the cylinder 135, and the side wall 141A and the side wall 141B function as heat radiating fins.
- the heating amount (heat transfer amount) for the refrigerant gas 111 sucked into the compression chamber 133 can be reduced, and the volumetric efficiency of the refrigerant gas 111 can be improved. As a result, the efficiency of the hermetic compressor can be increased.
- the first oil groove 139A and the first oil groove 139B are formed in an arc shape.
- the high-temperature oil 113 that has absorbed heat from the cylinder 135 through the first oil groove 139A and the first oil groove 139B tends to flow downward through the side of the cylinder 135, and the piston 123 and the cylinder 135 It is suppressed that it flows into the gap formed between them. For this reason, it is possible to prevent the hot oil 113 from entering the compression chamber 133.
- the refrigerant gas 111 sucked into the compression chamber 133 can be suppressed from being heated by the high-temperature oil 113, so that the volumetric efficiency of the refrigerant gas 111 can be improved. Efficiency can be improved.
- the oil 113 sprayed from the second oil spraying mechanism 145 is supplied to the gap formed between the piston 123 and the cylinder 135.
- the lubrication between the piston 123 and the cylinder 135 can be improved, the sliding loss can be reduced, and the sealing performance between the piston 123 and the cylinder 135 can be improved.
- the volumetric efficiency of the refrigerant gas 111 can be improved, and the efficiency of the hermetic compressor can be further improved.
- the discharge chamber 163 is generally formed integrally with the cylinder block 121 in order to improve productivity.
- the high-temperature refrigerant gas 111 discharged from the compression chamber 133 passes through the inside of a discharge chamber formed integrally with the cylinder block 121. For this reason, the cylinder 135 is heated by the heat transfer from the discharge chamber. As a result, in the suction stroke, the low-temperature refrigerant gas 111 sucked into the compression chamber 133 is heated by the high-temperature cylinder 135, and the volume efficiency may be reduced.
- the hermetic compressor 100 is configured such that the discharge chamber 163 is formed separately from the cylinder block 121. Thereby, heat transfer from the discharge chamber 163 to the cylinder 135 can be suppressed, and the temperature of the cylinder 135 can be further reduced, so that the volumetric efficiency of the refrigerant gas 111 can be improved, and the hermetic compressor Efficiency can be further improved.
- the circulation amount of the refrigerant gas 111 per unit time increases and the temperature of the refrigerant gas 111 discharged from the compression chamber 133 is high during high-speed rotation. Prone.
- the temperature of the cylinder 135 can be more effectively reduced by increasing the amount of oil 113 sprayed from the first oil spray mechanism 143 at high speed rotation. Can do.
- the volume change rate is slow and the refrigerant gas 111 is likely to receive heat from the cylinder 135, so that the effect of the hermetic compressor 100 according to the first embodiment becomes more remarkable.
- FIG. 5 is a schematic diagram showing a schematic configuration when the cylinder block of the hermetic compressor according to the first modification of the first embodiment is viewed from above.
- the hermetic compressor 100 of the first modification has the same basic configuration as the hermetic compressor 100 according to the first embodiment, but the side wall 141A and the side wall 141B are viewed from above. The difference is that it is formed in a V shape. Specifically, the side wall 141A and the side wall 141B are formed in a V shape so that the top dead center side protrudes. In other words, the first oil groove 139A and the first oil groove 139B are also formed in a V shape so that the top dead center side protrudes when viewed from above.
- hermetic compressor 100 according to the first modification of the first embodiment configured as described above, the same effects as the hermetic compressor 100 according to the first embodiment are exhibited.
- the side wall 141A and the side wall 141B are formed along the rotational direction of the eccentric shaft 127 by the configuration as described above.
- the oil 113 sprayed from the first oil spraying mechanism 143 is easily supplied to the first oil groove 139A and the first oil groove 139B. For this reason, in the hermetic compressor 100 of the first modification, the temperature of the piston 123 can be further reduced, and the compression efficiency of the hermetic compressor 100 can be further improved.
- the side wall 141A and the side wall 141B were formed in V shape so that the top dead center side might protrude, it is not limited to this.
- the side wall 141A and the side wall 141B may be formed in a V shape so that the bottom dead center side protrudes.
- the oil 113 sprayed from the first oil spraying mechanism 143 easily adheres to the side wall 141A and the side wall 141B, and the function of the side wall 141A and the side wall 141B as the heat radiating fins can be more exerted, and the temperature of the piston 123 is increased. Therefore, the compression efficiency of the hermetic compressor 100 can be further improved.
- FIG. 6 is a schematic diagram illustrating a cylinder block of a hermetic compressor according to the second modification of the first embodiment.
- the hermetic compressor 100 of the second modification has the same basic configuration as the hermetic compressor 100 according to the first embodiment, but the side wall 141A and the side wall 141B are viewed from above. The difference is that it is formed in a circular arc shape (to be curved; parabolic). Specifically, the side wall 141A and the side wall 141B are formed in an arc shape so that the top dead center side protrudes. Accordingly, the first oil groove 139A and the first oil groove 139B are also formed in an arc shape so that the top dead center side protrudes when viewed from above.
- hermetic compressor 100 of the second modification configured as described above, the same operational effects as the hermetic compressor 100 of the first modification in the first embodiment are exhibited.
- the hermetic compressor according to the second embodiment is the same as the hermetic compressor according to the first embodiment (including the first and second modifications), and the height of the side wall forming the first oil groove is a cylinder. It is formed so as to increase sequentially from the bottom dead center side to the top dead center side.
- hermetic compressor according to the second embodiment may be configured in the same manner as the hermetic compressor according to the first embodiment (including the first and second modifications) except for the above characteristics.
- FIG. 7 is a longitudinal sectional view of the hermetic compressor according to the second embodiment.
- FIG. 8 is an enlarged cross-sectional view of the vicinity of the cylinder of the hermetic compressor shown in FIG.
- the hermetic compressor 100 according to the second embodiment has the same basic configuration as the hermetic compressor 100 according to the first embodiment, but the first oil groove is provided.
- the height of the side wall to be formed is formed so as to increase sequentially from the bottom dead center side to the top dead center side of the cylinder 135.
- the side wall 141A located on the top dead center side of the cylinder 135 is formed to be higher than the side wall 141B located on the bottom dead center side of the cylinder 135.
- the hermetic compressor 100 according to the second embodiment configured as described above has the same effects as the hermetic compressor 100 according to the first embodiment.
- the height of the side wall forming the first oil groove is formed so as to increase sequentially from the bottom dead center side to the top dead center side of the cylinder 135. Has been. For this reason, compared with the hermetic compressor 100 according to the first embodiment, the oil 113 sprayed from the first oil spray mechanism 143 is easily supplied by the first oil groove 139A.
- the temperature increase of the refrigerant gas 111 sucked into the compression chamber 133 can be further suppressed, and the volumetric efficiency of the hermetic compressor 100 can be further improved.
- the hermetic compressor according to the third embodiment is the upper part of the cylinder in the hermetic compressor according to the first embodiment (including the first and second modifications) or the hermetic compressor according to the second embodiment. At least a part of the outer peripheral surface is formed so as to extend along the axial direction of the cylinder, and the bottom thereof is inclined so as to become lower from the bottom dead center side of the cylinder toward the top dead center side. A second oil groove communicating with the one oil groove is further provided.
- the hermetic compressor according to the third embodiment is configured in the same manner as the hermetic compressor according to the first embodiment (including the first and second modifications) or the second embodiment except for the above characteristics. May be.
- FIG. 9 is a longitudinal sectional view of the hermetic compressor according to the third embodiment.
- FIG. 10 is a perspective view from above of the cylinder block in the hermetic compressor shown in FIG. 9.
- the hermetic compressor 100 according to the third embodiment has the same basic configuration as that of the hermetic compressor 100 according to the first embodiment.
- the difference is that the surface includes a plurality of side walls 202 extending along the axial direction of the cylinder 135 and a second oil groove 201 formed between the side walls 202.
- the side wall 202 is formed to extend along the axial direction of the cylinder 135 when viewed from above the hermetic compressor 100.
- the plurality of (here, six) side walls 202 are arranged so as to be parallel to and parallel to each other in a direction perpendicular to the axial direction of the cylinder 135.
- the intervals between adjacent side walls 202 may be the same or different.
- the height of the side wall 202 can be arbitrarily set as long as the oil 113 can be supplied to the second oil groove 201.
- the upper end of the side wall 202 may be formed to be horizontal, or may be formed to be inclined downward from the bottom dead center of the cylinder 135 toward the top dead center. You may form so that it may incline below toward a bottom dead center from a point.
- two or more side walls 202 that form the second oil groove 201 may be provided, and the number of the side walls 202 provided may be arbitrarily set.
- the bottom surface of the second oil groove 201 is formed to be inclined downward from the bottom dead center of the cylinder 135 toward the top dead center.
- the second oil groove 201 is configured such that the top dead center side end of the cylinder 135 communicates with the first oil groove 139A. More specifically, a gap is formed between the top dead center side end portion of the cylinder 135 of the side wall 202 and the end portion of the cylinder 135 on the side far from the crankshaft 119, and this gap is A first oil groove 139 ⁇ / b> A extending along the circumferential direction of 135 is configured.
- the bottom surface of the first oil groove 139A may be formed to be flush with the bottom surface of the second oil groove 201, and is formed to be recessed inward from the bottom surface of the second oil groove 201. May be.
- the second oil groove 201 is configured to communicate with the first oil groove at the top dead center side end portion of the cylinder 135, but is not limited thereto.
- the second oil groove 201 may be configured to communicate with the first oil groove at a central portion of the second oil groove 201 in the axial direction of the cylinder 135.
- the present invention is not limited to this, and a configuration in which a plurality of first oil grooves communicate with the second oil groove 201 is adopted. Also good.
- the oil 113 sprayed from the eccentric shaft 127 (the first oil spray mechanism 143 in the third embodiment) is applied to the side wall 202. It adheres and flows along the side wall 202 and is supplied to the second oil groove 201.
- the oil 113 supplied to the second oil groove 201 absorbs the heat of the cylinder 135 while flowing through the second oil groove 201, and reduces the temperature of the cylinder 135. Further, while the oil 113 flows along the side wall 202, the oil 113 absorbs heat from the cylinder 135, and the side wall 202 functions as a heat radiating fin.
- the amount of heat applied to the refrigerant gas 111 sucked into the compression chamber 133 can be reduced and the volumetric efficiency of the refrigerant gas 111 can be improved.
- the efficiency of the compressor can be increased.
- the second oil groove 201 is formed along the axial direction of the cylinder 135. For this reason, since the oil 113 sprayed from the first oil spraying mechanism 143 can be evenly supplied to the second oil grooves 201, the cooling effect of the cylinder 135 can be further enhanced.
- the bottom surface of the second oil groove 201 is formed to be inclined downward from the bottom dead center side of the cylinder 135 toward the top dead center side. Yes.
- the second oil groove 201 communicates with a first oil groove 139 ⁇ / b> A that extends along the circumferential direction of the cylinder 135.
- the high-temperature oil 113 that has flowed through the second oil groove 201 and absorbed heat from the cylinder 135 is prevented from flowing into the gap formed between the piston 123 and the cylinder 135. For this reason, it is possible to prevent the hot oil 113 from entering the compression chamber 133.
- the refrigerant gas 111 sucked into the compression chamber 133 can be suppressed from being heated by the high-temperature oil 113, so that the volumetric efficiency of the refrigerant gas 111 can be improved, and the efficiency of the hermetic compressor Can be improved.
- the hermetic compressor according to the fourth embodiment is the same as the hermetic compressor according to any of the first to third embodiments (including the first and second modifications) to at least a part of the lower outer peripheral surface of the cylinder. Are provided with radiating fins.
- the temperature of the cylinder can be further reduced, so that the volumetric efficiency of the refrigerant gas can be improved and the efficiency of the hermetic compressor can be further increased.
- the electric element includes a stator fixed to the cylinder block and a rotor fixed to the crankshaft. Blower fins may be provided.
- the heat dissipation of the cylinder can be further promoted, so that the volumetric efficiency of the refrigerant gas can be improved and the efficiency of the hermetic compressor can be further increased.
- hermetic compressor according to the fourth embodiment has the same configuration as that of the hermetic compressor according to any of the first to third embodiments (including the first and second modifications) except for the above characteristics. May be.
- FIG. 11 is a longitudinal sectional view of a hermetic compressor according to the fourth embodiment.
- FIG. 12 is a perspective view from below of the cylinder block in the hermetic compressor shown in FIG. 11.
- FIG. 13 is a perspective view of a rotor in the hermetic compressor shown in FIG.
- the hermetic compressor 100 according to the fourth embodiment has the same basic configuration as the hermetic compressor 100 according to the first embodiment, but the lower outer periphery of the cylinder 135 is the same. The difference is that a plurality of heat dissipating fins 142 are provided on at least a part of the surface, and that a plurality of blower fins 181 are provided on the end face of the rotor 179 on the cylinder block 121 side.
- the radiation fins 142 are formed in a plate shape so as to extend in the axial direction of the cylinder 135. Further, the heat radiating fins 142 are formed in a straight line when viewed from below the hermetic compressor 100. Furthermore, a plurality (here, four) of heat radiating fins 142 are arranged in parallel in a direction perpendicular to the axial direction of the cylinder 135.
- the form in which the four radiating fins 142 are formed on the outer surface of the cylinder 135 is adopted.
- the present invention is not limited to this, and the number of the radiating fins 142 can be arbitrarily set.
- the interval between adjacent radiating fins 142 can also be set arbitrarily.
- the heat radiation fins 142 are linearly formed as viewed from the bottom of the hermetic compressor 100.
- the present invention is not limited to this and is formed on an arc. It may be formed in a wave shape.
- a plate-like blow fin 181 is provided on the end surface (upper end surface) of the rotor 179 on the cylinder block 121 side so as to extend in the direction of the main shaft 129 of the crankshaft 119.
- the blower fins 181 are formed in a straight line when viewed from above the hermetic compressor 100. Further, the plurality (eight in this case) of the air blowing fins 181 are arranged so as to be equally spaced in the circumferential direction. That is, the blow fins 181 are formed radially at the top of the rotor 179.
- the configuration in which the eight air blowing fins 181 are formed on the upper end surface of the rotor 179 is adopted.
- the present invention is not limited to this, and the number of the air blowing fins 181 can be arbitrarily set.
- the interval between adjacent blow fins 181 can also be set arbitrarily.
- the blower fins 181 are formed in a straight line when viewed from above the hermetic compressor 100.
- the present invention is not limited to this and is formed on an arc. It may be formed in a wave shape.
- the hermetic compressor 100 according to the fourth embodiment configured as described above has the same effects as the hermetic compressor 100 according to the first embodiment.
- the heat dissipating fins 142 are provided on the lower outer peripheral surface of the cylinder 135, the heat of the cylinder 135 can be dissipated from the heat dissipating fins 142. For this reason, since the temperature of the cylinder 135 can be further reduced, the volumetric efficiency of the refrigerant gas 111 can be improved, and the efficiency of the hermetic compressor can be further improved.
- the air blow fin 181 is provided on the upper end surface of the rotor 179, and therefore, when the rotor 179 rotates, wind flows to the cylinder 135 (the heat radiation fin 142 of the cylinder 135).
- the heat radiation of the cylinder 135 can be further promoted. For this reason, since the temperature of the cylinder 135 can be further reduced, the volumetric efficiency of the refrigerant gas 111 can be improved, and the efficiency of the hermetic compressor can be further improved.
- FIG. 14 is a schematic diagram showing a schematic configuration of the refrigeration apparatus according to Embodiment 5.
- the refrigeration apparatus 300 includes a main body 301 composed of a heat-insulating box having an opening on one side and a door that opens and closes the opening, and an interior of the main body 301.
- a partition wall 307 partitioned into an article storage space 303 and a machine room 305 and a refrigerant circuit 309 for cooling the interior of the storage space 303 are provided.
- the refrigerant circuit 309 has a configuration in which the hermetic compressor 100 according to the first embodiment, the radiator 313, the decompression device 315, and the heat absorber 317 are annularly connected by piping. And the heat absorber 317 is arrange
- the refrigeration apparatus 300 according to the fifth embodiment configured as described above includes the hermetic compressor 100 according to the first embodiment, the same operation as the hermetic compressor 100 according to the first embodiment. There is an effect, power consumption of the refrigeration apparatus 300 can be reduced, and energy saving can be realized.
- a configuration including the hermetic compressor 100 according to the first embodiment is adopted, but the present invention is not limited to this, and the first and second modifications of the first embodiment are modified.
- a form including the hermetic compressor 100 and any one of the hermetic compressors 100 according to the second to fourth embodiments may be adopted.
- hermetic compressor and the refrigeration apparatus including the same can improve the efficiency of the hermetic compressor, it is not limited to household use such as an electric refrigerator or an air conditioner, but is also a commercial showcase, automatic It can be widely applied to refrigeration equipment such as vending machines.
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Abstract
Description
本実施の形態1に係る密閉型圧縮機は、電動要素と、電動要素によって駆動される圧縮要素と、電動要素と圧縮要素が収容され、オイルが貯留されている密閉容器と、を備え、圧縮要素は、主軸、偏心軸、及び給油機構を備えるクランクシャフトと、クランクシャフトの主軸を軸支する主軸受と圧縮室を形成するシリンダを備えるシリンダブロックと、シリンダ内を往復動するピストンと、偏心軸とピストンを連結する連結手段と、を備え、シリンダの上部外周面の少なくとも一部には、シリンダの円周方向に沿って延びる第1オイル溝が設けられている。
図1は、本実施の形態1に係る密閉型圧縮機の縦断面図である。図2は、実施の形態1に係る密閉型圧縮機の横断面図である。図3は、図1及び図2に示す密閉型圧縮機の圧縮要素近傍を拡大した断面図である。図4は、図1及び図2に示す密閉型圧縮機のシリンダ近傍を拡大した断面図である。
次に、本実施の形態1に係る密閉型圧縮機100の動作及び作用効果について、説明する。
次に、本実施の形態1に係る密閉型圧縮機100の変形例について、説明する。
図6は、本実施の形態1における変形例2の密閉型圧縮機のシリンダブロックを示す模式図である。
本実施の形態2に係る密閉型圧縮機は、実施の形態1(変形例1及び変形例2を含む)に係る密閉型圧縮機において、第1オイル溝を形成する側壁の高さが、シリンダの下死点側から上死点側に向かって順次高くなるように形成されている。
本実施の形態3に係る密閉型圧縮機は、実施の形態1(変形例1及び変形例2を含む)に係る密閉型圧縮機又は実施の形態2に係る密閉型圧縮機において、シリンダの上部外周面の少なくとも一部には、シリンダの軸心方向に沿って延び、かつ、その底部が、シリンダの下死点側から上死点側に向かって低くなるように傾斜して形成され、第1オイル溝に連通されている第2オイル溝がさらに設けられている。
図9は、本実施の形態3に係る密閉型圧縮機の縦断面図である。図10は、図9に示す密閉型圧縮機におけるシリンダブロックの上方からの斜視図である。
このように構成された本実施の形態3に係る密閉型圧縮機100では、偏心軸127(本実施の形態3においては、第1オイル散布機構143)から散布されるオイル113が、側壁202に付着し、側壁202に沿って通流して、第2オイル溝201に供給される。そして、第2オイル溝201に供給されたオイル113は、第2オイル溝201を通流する間に、シリンダ135の熱を吸熱し、シリンダ135の温度を低下させる。また、オイル113が、側壁202に沿って通流する間にも、オイル113がシリンダ135から熱を吸着し、側壁202は、放熱フィンとして機能する。
本実施の形態4に係る密閉型圧縮機は、実施の形態1(変形例1及び変形例2を含む)~3のいずれかに係る密閉型圧縮機において、シリンダの下部外周面の少なくとも一部には、放熱フィンが設けられている。
図11は、本実施の形態4に係る密閉型圧縮機の縦断面図である。図12は、図11に示す密閉型圧縮機におけるシリンダブロックの下方からの斜視図である。図13は、図12に示す密閉型圧縮機におけるロータの斜視図である。
このように構成された本実施の形態4に係る密閉型圧縮機100であっても、実施の形態1に係る密閉型圧縮機100と同様の作用効果を奏する。
図14は、本実施の形態5に係る冷凍装置の概略構成を示す模式図である。
5 冷媒ガス
6 ピストン
7 圧縮機構部
8 電動機部
11 密閉容器
12 フレーム
13 スプリング
14 冷凍機油
15 主軸部
16 偏心軸部
17 回転軸
18 回転子
19 固定子
22 オイルポンプ
23 給油通路
27 シリンダ
28 シリンダブロック
29 シリンダ室
41 オイル溜め部
43 突出部
45 凹部
100 密閉型圧縮機
101 密閉容器
103 電動要素
105 圧縮要素
107 圧縮機本体
109 サスペンションスプリング
111 冷媒ガス
113 オイル
115 吸入パイプ
117 吐出パイプ
119 クランクシャフト
121 シリンダブロック
123 ピストン
125 連結手段
127 偏心軸
129 主軸
130 連結孔
131 給油機構
133 圧縮室
135 シリンダ
137 軸受
139 第1オイル溝
139A 第1オイル溝
139B 第1オイル溝
141A 側壁
141B 側壁
142 放熱フィン
143 第1オイル散布機構
145 第2オイル散布機構
147 吸入孔
149 吐出孔
151 バルブプレート
153 吸入バルブ
155 シリンダヘッド
157 ヘッドボルト
159 吐出空間
161 吐出管
163 吐出チャンバー
165 吸入マフラー
167 尾管
169 連通管
171 消音空間
173 マフラー本体
175 吸入口
177 ステータ
179 ロータ
181 送風フィン
200 インバータ装置
201 第2オイル溝
202 側壁
300 冷凍装置
301 本体
303 貯蔵空間
305 機械室
307 区画壁
309 冷媒回路
313 放熱器
315 減圧装置
317 吸熱器
Claims (9)
- 電動要素と、
前記電動要素によって駆動される圧縮要素と、
前記電動要素と前記圧縮要素が収容され、オイルが貯留されている密閉容器と、を備え、
前記圧縮要素は、主軸、偏心軸、及び給油機構を備えるクランクシャフトと、前記クランクシャフトの前記主軸を軸支する主軸受と圧縮室を形成するシリンダを備えるシリンダブロックと、前記シリンダ内を往復動するピストンと、前記偏心軸と前記ピストンを連結する連結手段と、を備え、
前記シリンダの上部外周面の少なくとも一部には、前記シリンダの円周方向に沿って延びる第1オイル溝が設けられている、密閉型圧縮機。 - 前記第1オイル溝を形成する側壁の高さが、前記シリンダの下死点側から上死点側に向かって順次高くなるように形成されている、請求項1に記載の密閉型圧縮機。
- 前記シリンダの上部外周面の少なくとも一部には、前記シリンダの軸心方向に沿って延び、かつ、その底部が、前記シリンダの下死点側から上死点側に向かって低くなるように傾斜して形成され、前記第1オイル溝に連通されている第2オイル溝がさらに設けられている、請求項1に記載の密閉型圧縮機。
- 前記クランクシャフトの偏心軸には、前記第1オイル溝に前記オイルを散布する第1オイル散布機構と、前記ピストンと前記シリンダとの間に形成される隙間に前記オイルを散布する第2オイル散布機構と、が設けられている、請求項1~3のいずれか1項に記載の密閉型圧縮機。
- 前記シリンダの下部外周面の少なくとも一部には、放熱フィンが設けられている、請求項1~4のいずれか1項に記載の密閉型圧縮機。
- 前記電動要素は、前記シリンダブロックに固定されたステータと、前記クランクシャフトに固定されたロータと、を備え、
前記ロータの前記シリンダブロック側端部には、送風フィンが設けられている、請求項1~5のいずれか1項に記載の密閉型圧縮機。 - 前記圧縮要素は、前記圧縮室で圧縮された冷媒が吐出される吐出管と、前記吐出管の途中に設けられた吐出チャンバーと、を備える、請求項1~6のいずれか1項に記載の密閉型圧縮機。
- 前記電動要素は、複数の運転周波数でインバータ駆動されるように構成されている、請求項1~7のいずれか1項に記載の密閉型圧縮機。
- 請求項1~8のいずれか1項に記載の密閉型圧縮機を備える、冷凍装置。
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US14/655,250 US20150330680A1 (en) | 2012-12-27 | 2013-12-26 | Hermetic compressor and refrigeration apparatus including the same |
CN201380068314.9A CN104884803A (zh) | 2012-12-27 | 2013-12-26 | 密闭型压缩机和具有其的制冷装置 |
EP13868684.5A EP2940300B1 (en) | 2012-12-27 | 2013-12-26 | Hermetic compressor and refrigeration device with same |
JP2014554150A JPWO2014103320A1 (ja) | 2012-12-27 | 2013-12-26 | 密閉型圧縮機及びそれを備える冷凍装置 |
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- 2013-12-26 EP EP13868684.5A patent/EP2940300B1/en not_active Not-in-force
- 2013-12-26 US US14/655,250 patent/US20150330680A1/en not_active Abandoned
- 2013-12-26 WO PCT/JP2013/007639 patent/WO2014103320A1/ja active Application Filing
- 2013-12-26 JP JP2014554150A patent/JPWO2014103320A1/ja active Pending
- 2013-12-26 CN CN201380068314.9A patent/CN104884803A/zh active Pending
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JPS60147581A (ja) * | 1984-01-11 | 1985-08-03 | Matsushita Refrig Co | 密閉型圧縮機の冷却装置 |
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JP2010065589A (ja) | 2008-09-10 | 2010-03-25 | Toshiba Carrier Corp | 密閉型圧縮機及び冷凍サイクル装置 |
EP2500567A1 (en) * | 2009-11-10 | 2012-09-19 | Whirlpool S.A. | Refrigeration compressor |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110662902A (zh) * | 2017-05-23 | 2020-01-07 | 松下电器制冷装置新加坡 | 密封制冷压缩机及冷冻装置 |
CN110662902B (zh) * | 2017-05-23 | 2022-03-25 | 松下电器制冷装置新加坡 | 密封制冷压缩机及制冷装置 |
CN111255657A (zh) * | 2020-01-15 | 2020-06-09 | 加西贝拉压缩机有限公司 | 一种制冷压缩机用翼型结构气缸座 |
CN111255657B (zh) * | 2020-01-15 | 2021-12-21 | 加西贝拉压缩机有限公司 | 一种制冷压缩机用翼型结构气缸座 |
CN113374758A (zh) * | 2021-04-27 | 2021-09-10 | 武汉众然品知科技有限公司 | 一种高密封性集成液压泵站 |
Also Published As
Publication number | Publication date |
---|---|
EP2940300B1 (en) | 2017-03-01 |
US20150330680A1 (en) | 2015-11-19 |
CN104884803A (zh) | 2015-09-02 |
JPWO2014103320A1 (ja) | 2017-01-12 |
EP2940300A4 (en) | 2016-03-16 |
EP2940300A1 (en) | 2015-11-04 |
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