WO2014097478A1 - 圧縮機、ヒートポンプ装置、空気調和機及び冷凍機 - Google Patents
圧縮機、ヒートポンプ装置、空気調和機及び冷凍機 Download PDFInfo
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- WO2014097478A1 WO2014097478A1 PCT/JP2012/083302 JP2012083302W WO2014097478A1 WO 2014097478 A1 WO2014097478 A1 WO 2014097478A1 JP 2012083302 W JP2012083302 W JP 2012083302W WO 2014097478 A1 WO2014097478 A1 WO 2014097478A1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/008—Prime movers
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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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
-
- 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
- F25B40/00—Subcoolers, desuperheaters or superheaters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/04—Balancing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/80—Other components
- F04C2240/807—Balance weight, counterweight
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/13—Economisers
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/13—Vibrations
-
- 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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Definitions
- the present invention relates to a compressor, a heat pump device, an air conditioner, and a refrigerator.
- a balance weight is provided at the end of the rotor of the motor.
- the balance weight is used to balance the force of the entire rotating part so as to cancel the deflection of the shaft due to the compression of the refrigerant, thereby suppressing vibration and noise during compressor operation.
- Patent Document 1 discloses a configuration in which one of the facing permanent magnets generates a magnetomotive force larger than the other in order to eliminate a balance weight that suppresses load fluctuations of the motor, and an air gap between the stator of one of the permanent magnets. Discloses a technique in which the air gap is wider than the air gap of the other permanent magnet.
- the air gap is widened, and the effective magnetic flux amount is reduced.
- the present invention has been made in view of the above, and is a compressor capable of balancing the force of the entire rotating portion even if no balance weight is provided while suppressing a decrease in the amount of effective magnetic flux.
- the purpose is to obtain.
- a compressor according to the present invention is connected to a motor having a rotor including opposing magnets, a compressor that compresses refrigerant, the motor, and the compressor. And a crankshaft configured to transmit the rotational drive of the motor to the compression unit, wherein the difference in magnetic force between the opposing magnets causes the crankshaft during rotational drive to The magnet is arranged so as to cancel the bending force.
- the present invention it is possible to balance the force of the entire rotating part even if no balance weight is provided while suppressing a decrease in the effective amount of magnetic flux, and suppressing vibration and noise during operation. An effect is obtained that a compressor to be used can be obtained.
- FIG. 1 is a side sectional view of a rotor according to Embodiment 1.
- FIG. FIG. 2 is a side sectional view of a conventional rotor.
- FIG. 3 is a model diagram illustrating a compressor including the rotor according to the first embodiment.
- FIG. 4 is a side sectional view of the rotor according to the second embodiment.
- FIG. 5 is a side sectional view of the rotor according to the third embodiment.
- FIG. 6A is a cross-sectional view taken along A1-A2 in FIG. 5 according to the third embodiment.
- 6B is a cross-sectional view taken along B1-B2 of FIG. 5 according to the third embodiment.
- FIG. 7 is a diagram illustrating a configuration example of the heat pump device according to the fourth embodiment.
- FIG. 8-1 is a diagram illustrating a configuration example of a device including the heat pump device according to the fourth embodiment during a heating operation.
- FIG. 8-2 is a diagram of a configuration example during cooling operation of a device including the heat pump device according to the fourth embodiment.
- FIG. 9 is a Mollier diagram of the refrigerant of the heat pump apparatus shown in FIGS. 8-1 and 8-2 according to the fourth embodiment.
- Embodiment 1 FIG. In the present embodiment, the configuration of the compressor according to the present invention will be described with reference to FIGS. 1 to 3.
- FIG. 1 is a side sectional view of a rotor 10 according to a first embodiment of a hermetic compressor according to the present invention.
- a rotor 10 shown in FIG. 1 includes a rotor core 12, magnets 14a and 14b, and a bearing portion 16, and uses a rotary shaft 18 as a rotary shaft.
- Magnets 14 a and 14 b are inserted into the rotor core 12, and the magnets 14 a and 14 b are provided to face each other with the bearing portion 16 interposed therebetween.
- the length L1 of the magnets 14a and 14b in the direction parallel to the rotation shaft 18 is shorter than the length L2 of the magnet 14b in the direction parallel to the rotation shaft 18.
- the magnets 14a and 14b are arranged and inserted so as to be parallel to the rotating shaft 18 and shifted in opposite directions (directions different by 180 degrees).
- the opposing magnets 14a and 14b are arranged so as to be shifted in a direction parallel to the rotation shaft 18.
- the magnet 14a In the direction orthogonal to the rotation shaft 18, the magnet 14a has a portion that does not overlap with the magnet 14b.
- the magnet 14a is arranged and inserted so as to have a portion that does not overlap.
- the magnetic field in the direction orthogonal to the rotating shaft 18 of the rotor 10 becomes unbalanced.
- the magnetic field is unbalanced, and the difference between the force and the magnetic force that cause the deflection is made the opposite direction so that the magnitudes are equal, so that the crankshaft rotates without causing the crankshaft to rotate.
- the balance of the force applied to the entire part can be balanced.
- a shaft connected to the rotor 10 is disposed in the bearing portion 16 so that the center thereof is disposed on the rotation shaft 18.
- FIG. 2 is a side sectional view of a conventional rotor 20 of a hermetic compressor.
- the rotor 20 shown in FIG. 1 includes a rotor core 22, magnets 24a and 24b, a bearing portion 26, and balance weights 29a and 29b, and a rotary shaft 28 is a rotary shaft.
- Magnets 24 a and 24 b are inserted into the rotor core 22.
- a shaft connected to the rotor 20 is disposed at the bearing portion 26 so that the center thereof is disposed at the rotation shaft 28.
- the balance weights 29a and 29b are provided at different ends of the rotor 20, respectively. By providing the pair of balance weights 29a and 29b as described above, the shaft is not bent when the refrigerant is compressed, and vibration and noise caused by torque fluctuations are suppressed.
- the material of the balance weights 29a and 29b As the material of the balance weights 29a and 29b, a material having a large specific gravity and a low magnetic permeability is used.
- An example of such a material is brass.
- brass is a material with a relatively high cost
- the provision of the balance weights 29a and 29b is one factor that hinders cost reduction. It also contributes to hindering resource saving.
- the magnets 14 a and 14 b are arranged so as to be shifted in a direction parallel to the rotation shaft 18, and the magnet 14 a has a portion that does not overlap with the magnet 14 b in the direction orthogonal to the rotation shaft 18.
- the magnet 14b is configured to have a portion that does not overlap with the magnet 14a. In this way, the magnetic field is unbalanced, and the difference between the force and magnetic force that cause deflection is reversed, and the magnitude is equal, so that the shaft does not bend and vibration and noise caused by torque fluctuations are suppressed. can do.
- the air gap does not widen, and vibration and noise can be suppressed while suppressing a decrease in the effective magnetic flux amount.
- FIG. 3 is a model diagram showing a rotary compressor 100 which is an example to which the present invention can be applied.
- the compressor 100 includes a motor 102 and a compression unit 106 inside.
- the compressor 106 compresses the refrigerant, and the motor 102 includes the rotor 10 shown in FIG.
- the rotation drive of the motor 102 is transmitted to the compression unit 106 via the crankshaft 104, and the refrigerant is compressed.
- a force (black arrow) for deflecting the crankshaft 104 is generated, but by applying the present invention, a difference in magnetic force (open arrow) works in a direction opposite to the force for deflecting the crankshaft 104.
- a difference in magnetic force open arrow
- Embodiment 2 the configuration of the compressor of the present invention will be described with reference to FIG.
- FIG. 4 is a side sectional view of the rotor 30 according to the second embodiment of the hermetic compressor according to the present invention.
- the rotor 30 shown in FIG. 4 includes a rotor core 32, magnets 34a to 34d, and a bearing portion 36, and uses a rotation shaft 38 as a rotation shaft.
- Magnets 34 a to 34 d are inserted into the rotor core 32, and the magnets 34 a and 34 b and the magnets 34 c and 34 d are provided to face each other with the bearing portion 36 interposed therebetween.
- the magnet 34a is longer in the direction parallel to the rotation shaft 38 than the magnet 34b, and the magnet 34d is longer in the direction parallel to the rotation shaft 38 than the magnet 34c.
- the magnet 34a is disposed to face a part of the magnet 34d and the magnet 34c, and the magnet 34b is disposed to face a part of the magnet 34d.
- a shaft connected to the rotor 30 is arranged at the bearing portion 36 so that the center thereof is arranged at the rotation shaft 38.
- the magnetic force of the magnets 34b and 34c is made higher than the magnetic force of the magnets 34a and 34d.
- a strong attractive force or a repulsive force acts on the portion where the high magnetic force magnet is arranged with respect to the low magnetic force magnet, and therefore the rotation of the rotor 30
- the magnetic field in the direction perpendicular to the axis 38 is imbalanced.
- the balance of the force applied to can be balanced. For this reason, it is possible to suppress vibration and noise caused by torque fluctuations without suppressing the reduction of the effective magnetic flux amount and causing the shaft to bend during compression of the refrigerant.
- a neodymium magnet can be illustrated as a high magnetic force magnet, and an isotropic ferrite magnet can be illustrated as a low magnetic force magnet.
- the specific position where the magnets 34a to 34d are arranged may be determined according to the load applied to the shaft during rotational driving.
- Embodiment 3 FIG. In the present embodiment, the configuration of the compressor of the present invention will be described with reference to FIGS. 5 to 6-2.
- FIG. 5 is a side sectional view of the rotor 40 according to the third embodiment of the hermetic compressor according to the present invention.
- the rotor 40 shown in FIG. 5 includes a rotor core 42, magnets 44a to 44d, and a bearing portion 46.
- Magnets 44 a to 44 d are inserted into the rotor core 42, and the magnets 44 a and 44 b and the magnets 44 c and 44 d are provided to face each other with the bearing portion 46 interposed therebetween.
- the magnet 44a is longer in the direction parallel to the rotation shaft 48 than the magnet 44b, and the magnet 44d is longer in the direction parallel to the rotation shaft 48 than the magnet 44c.
- the magnet 44a is disposed to face a part of the magnet 44d and the magnet 44c, and the magnet 44b is disposed to face a part of the magnet 44d.
- a shaft connected to the rotor 40 is disposed at the bearing portion 46 so that the center thereof is disposed at the rotation shaft 48.
- FIG. 6A is a cross-sectional view of a plane orthogonal to the rotation axis 48 in A1-A2 of FIG.
- FIG. 6B is a diagram illustrating a cross-sectional view of a plane orthogonal to the rotation shaft 48 in B1-B2 of FIG.
- the width of the magnet 44b is longer than the width of the magnet 44d.
- the width of the magnet 44c is longer than the width of the magnet 44a.
- the magnetic field in the direction orthogonal to the rotation axis 48 of the rotor 40 is not changed by making the length in the rotation axis direction different from the width in the plane orthogonal to the rotation axis between the opposing magnets. It becomes equilibrium.
- the magnetic field unbalanced and equalizing the difference in magnetic force and the difference in force for deflecting the shaft disposed on the bearing portion 46 it is possible to balance the force applied to the entire rotating portion. For this reason, it is possible to suppress vibration and noise caused by torque fluctuations without suppressing the reduction of the effective magnetic flux amount and causing the shaft to bend during compression of the refrigerant.
- the specific position where the magnets 44a to 44d are arranged may be determined according to the load applied to the shaft during rotational driving.
- Embodiment 4 FIG.
- the structure of a heat pump device including a motor including the rotor described in Embodiments 1 to 3 will be described with reference to FIGS.
- FIG. 7 is a diagram showing a heat pump device 50 which is a configuration example of the heat pump device of the present embodiment.
- the heat pump device 50 illustrated in FIG. 7 includes a refrigeration cycle unit 52, an inverter unit 54, and an inverter control unit 56.
- the heat pump device 50 is applied to, for example, an air conditioner or a refrigerator.
- the refrigeration cycle unit 52 includes a compressor 100, a four-way valve 60, a heat exchanger 62, an expansion mechanism 64, and a heat exchanger 66, and these are connected via a refrigerant pipe 68.
- the compressor 100 includes the compression unit 106 and the motor 102 inside as described in the first embodiment (see FIG. 3).
- the inverter unit 54 is electrically connected to the motor 102 and supplies AC power to drive the motor 102.
- the power source of the inverter unit 54 may be any power source as long as it can supply DC power, and may be a solar cell, an AC power source to which a rectifier is added, or the like.
- the inverter control unit 56 is electrically connected to the inverter unit 54, generates an inverter drive signal (for example, PWM (Pulse Width Modulation) signal) from the necessary refrigerant compression amount of the compressor 100, and outputs the inverter drive signal to the inverter unit 54.
- PWM Pulse Width Modulation
- FIGS. 8A and 8B are diagrams illustrating a configuration example of a device including the heat pump device 50.
- FIGS. FIG. 8-1 shows a configuration example during heating operation
- FIG. 8-2 shows a configuration example during cooling operation.
- the refrigerant circulation direction is different, and this switching is performed by a four-way valve 90 described later.
- FIG. 9 is a diagram illustrating a Mollier diagram regarding the state of the refrigerant in the heat pump device 50 illustrated in FIGS. 8-1 and 8-2.
- the horizontal axis is the specific enthalpy h
- the vertical axis is the refrigerant pressure P.
- the compressor 74, the heat exchanger 76, the expansion mechanism 78, the receiver 80, the internal heat exchanger 82, the expansion mechanism 84, and the heat exchanger 86 are each connected by a pipe, and a main refrigerant circuit in which the refrigerant circulates through the pipe. Is configured.
- the main refrigerant circuit is divided into main refrigerant circuits 88a to 88k in FIGS. 8-1 and 8-2, respectively.
- a four-way valve 90 is provided on the discharge side of the compressor 74, and the circulation direction of the refrigerant can be switched.
- a fan 92 is provided in the vicinity of the heat exchanger 86.
- the compressor 74 corresponds to the compressor 100 in FIG. 7 and includes the motor 102 and the compression unit 106 driven by the inverter unit 54.
- the compression unit 106 and the motor 102 are connected by a crankshaft 104.
- the heat pump device 50 is provided with injection circuits 96a to 96c (shown by bold lines) that connect between the receiver 80 and the internal heat exchanger 82 to the injection pipe of the compressor 74.
- An expansion mechanism 94 and an internal heat exchanger 82 are connected to the injection circuits 96a to 96c.
- a water circuit (represented by a thick line) composed of a water circuit 98a and a water circuit 98b is connected to the heat exchanger 76, and water is circulated.
- the water circuit 98a and the water circuit 98b are connected to a device that uses water such as a radiator provided in a water heater, a radiator, or floor heating.
- the refrigerant in the gas phase is compressed by the compressor 74 to be in a high temperature and high pressure state (point A in FIG. 9).
- the high-temperature and high-pressure refrigerant is discharged from the compressor 74 to the main refrigerant circuit 88a.
- the refrigerant in the main refrigerant circuit 88a is transferred to the four-way valve 90, and the refrigerant in the main refrigerant circuit 88b via the four-way valve 90 is transferred to the heat exchanger 76.
- the transferred refrigerant in the main refrigerant circuit 88b is cooled and liquefied by heat exchange in the heat exchanger 76 (point B in FIG. 9). That is, the heat exchanger 76 is a condenser and functions as a radiator in the main refrigerant circuit.
- the water in the water circuit 98a is warmed by the heat radiated from the refrigerant in the main refrigerant circuit.
- the warmed water in the water circuit 98b is used for heating or hot water supply.
- the refrigerant in the main refrigerant circuit 88c liquefied by the heat exchanger 76 is transferred to the expansion mechanism 78, and is decompressed by the expansion mechanism 78 to be in a gas-liquid two-phase state (point C in FIG. 9).
- the refrigerant of the main refrigerant circuit 88d in the gas-liquid two-phase state is transferred to the receiver 80, transferred to the compressor 74 by the receiver 80 (refrigerant transferred from the main refrigerant circuit 88j to the main refrigerant circuit 88k) and heat. It is exchanged, cooled and liquefied (point D in FIG. 9).
- the refrigerant in the main refrigerant circuit 88e liquefied by the receiver 80 branches into a main refrigerant circuit 88f and an injection circuit 96a at a point P in FIG.
- the refrigerant flowing from the main refrigerant circuit 88f to the internal heat exchanger 82 is further cooled in the internal heat exchanger 82 by exchanging heat with the refrigerant transferred from the injection circuit 96b to the injection circuit 96c (point E in FIG. 9). .
- the refrigerant flowing through the injection circuit 96b is decompressed by the expansion mechanism 94 and is in a gas-liquid two-phase state.
- the refrigerant in the main refrigerant circuit 88g cooled by the internal heat exchanger 82 is transferred to the expansion mechanism 84 and depressurized to be in a gas-liquid two-phase state (point F in FIG. 9).
- the refrigerant in the main refrigerant circuit 88h that has been in the gas-liquid two-phase state by the expansion mechanism 84 is transferred to the heat exchanger 86, and heat is exchanged with the outside air in the heat exchanger 86 and heated (point G in FIG. 9). That is, the heat exchanger 86 functions as an evaporator in the main refrigerant circuit.
- the refrigerant in the main refrigerant circuit 88i heated by the heat exchanger 86 is transferred to the four-way valve 90, and the refrigerant in the main refrigerant circuit 88j passing through the four-way valve 90 is transferred to the receiver 80 and further received by the receiver 80. Heated (point H in FIG. 9), the heated refrigerant in the main refrigerant circuit 88k is transferred to the compressor 74.
- the refrigerant in the injection circuit 96a branched at the point P is decompressed by the expansion mechanism 94 (point I in FIG. 9), and the decompressed refrigerant in the injection circuit 96b is Heat exchange is performed by the internal heat exchanger 82, and a gas-liquid two-phase state is obtained (point J in FIG. 9).
- the refrigerant in the injection circuit 96c heat-exchanged by the internal heat exchanger 82 is transferred from the injection pipe of the compressor 74 into the compressor 74.
- the refrigerant from the main refrigerant circuit 88k (point H in FIG. 9) is compressed to an intermediate pressure and heated (point K in FIG. 9).
- the refrigerant from the main refrigerant circuit 88k compressed to the intermediate pressure and heated joins with the refrigerant (point J in FIG. 9) in the injection circuit 96c, and the temperature of the refrigerant from the main refrigerant circuit 88k decreases (point in FIG. 9). L).
- the refrigerant whose temperature has decreased (point L in FIG. 9) is further compressed by the compressor 74, heated to high temperature and pressure (point A in FIG. 9), and discharged from the compressor 74 to the main refrigerant circuit 88a.
- the heat pump device 50 may not perform the injection operation.
- the expansion mechanism 94 may be closed and the refrigerant may not flow into the injection pipe of the compressor 74.
- the opening degree of the expansion mechanism 94 may be controlled by a microcomputer or the like.
- the refrigerant in the gas phase is compressed by the compressor 74 to be high temperature and pressure (point A in FIG. 9).
- the high-temperature and high-pressure refrigerant is discharged from the compressor 74 to the main refrigerant circuit 88a, passes through the four-way valve 90, and the refrigerant in the main refrigerant circuit 88b passes through the four-way valve 90 to the heat exchanger 86. .
- the transferred refrigerant in the main refrigerant circuit 88b is cooled and liquefied by heat exchange in the heat exchanger 86 (point B in FIG. 9). That is, the heat exchanger 86 functions as a condenser and a radiator in the main refrigerant circuit.
- the refrigerant in the main refrigerant circuit 88c liquefied by the heat exchanger 86 is transferred to the expansion mechanism 84 and depressurized, so that it enters a gas-liquid two-phase state (point C in FIG. 9).
- the refrigerant in the main refrigerant circuit 88d in the gas-liquid two-phase state is transferred to the internal heat exchanger 82, and heat exchanged with the refrigerant transferred from the injection circuit 96b to the injection circuit 96c in the internal heat exchanger 82. It is cooled and liquefied (point D in FIG. 9).
- the refrigerant transferred from the injection circuit 96b is decompressed by the expansion mechanism 94 and is in a gas-liquid two-phase state (point I in FIG. 9).
- the refrigerant (point D in FIG. 9) of the main refrigerant circuit 88e heat-exchanged by the internal heat exchanger 82 branches to the main refrigerant circuit 88f and the injection circuit 96a at point P in FIG. 8-2.
- the refrigerant in the main refrigerant circuit 88f is heat-exchanged with the refrigerant transferred from the main refrigerant circuit 88j to the main refrigerant circuit 88k and further cooled (point E in FIG. 9).
- the refrigerant in the main refrigerant circuit 88g cooled by the receiver 80 is decompressed by the expansion mechanism 78 and becomes a gas-liquid two-phase state (point F in FIG. 9).
- the refrigerant in the main refrigerant circuit 88h that has been in the gas-liquid two-phase state by the expansion mechanism 78 is heat-exchanged by the heat exchanger 76 and heated (point G in FIG. 9).
- the water in the water circuit 98a is cooled, and the cooled water in the water circuit 98b is used for cooling or freezing. That is, the heat exchanger 76 functions as an evaporator in the main refrigerant circuit.
- the refrigerant in the main refrigerant circuit 88i heated by the heat exchanger 76 passes through the four-way valve 90, and the refrigerant in the main refrigerant circuit 88j that passes through the four-way valve 90 flows into the receiver 80 and is further heated (FIG. 9). Point H).
- the refrigerant in the main refrigerant circuit 88k heated by the receiver 80 is transferred to the compressor 74.
- the refrigerant in the injection circuit 96a branched at the point P in FIG. 8-2 is decompressed by the expansion mechanism 94 (point I in FIG. 9).
- the refrigerant in the injection circuit 96b decompressed by the expansion mechanism 94 is heat-exchanged by the internal heat exchanger 82 to be in a gas-liquid two-phase state (point J in FIG. 9).
- the refrigerant in the injection circuit 96 c heat-exchanged by the internal heat exchanger 82 is transferred from the injection pipe of the compressor 74 into the compressor 74.
- the subsequent compression operation in the compressor 74 is the same as in the heating operation. That is, the refrigerant (point A in FIG. 9) that has been compressed and heated to a high temperature and high pressure is discharged from the compressor 74 to the main refrigerant circuit 88a.
- the expansion mechanism 94 is closed and the refrigerant does not have to flow into the injection pipe of the compressor 74.
- the opening degree of the expansion mechanism 94 may be controlled by a microcomputer or the like.
- the heat exchanger 76 has been described as a heat exchanger (for example, a plate heat exchanger) that exchanges heat between the refrigerant in the main refrigerant circuit and the water in the water circuit.
- the heat exchanger 76 is not limited to this, and may exchange heat between the refrigerant and the air. Further, other fluid may flow in the water circuit instead of water.
- the heat pump device of the present embodiment can be applied to an air conditioner, a heat pump water heater, a refrigerator, a refrigerator, and the like.
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Compressor (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
本実施の形態では、本発明に係る圧縮機の構成について、図1乃至図3を参照して説明する。
本実施の形態では、本発明の圧縮機の構成について図4を参照して説明する。
本実施の形態では、本発明の圧縮機の構成について図5~図6-2を参照して説明する。
本実施の形態では、実施の形態1乃至3にて説明した回転子を含むモータを備えるヒートポンプ装置の構成について図7~図9を参照して説明する。
Claims (7)
- 対向する磁石を含む回転子を有するモータと、
冷媒を圧縮する圧縮部と、
前記モータと前記圧縮部に接続され、前記モータの回転駆動を前記圧縮部に伝達するように構成されたクランクシャフトと、を備えた圧縮機であって、
前記対向する磁石間の磁力の差分が、回転駆動時の前記クランクシャフトをたわませる力を打ち消すように前記磁石が配置されていることを特徴とする圧縮機。 - 前記対向する磁石は、前記回転子の回転軸に平行な方向にずらして配置され、
該回転軸に直交する方向において、
前記対向する磁石の一方は、他方と重畳しない部分を有し、
前記対向する磁石の前記他方は、前記一方と重畳しない部分を有することを特徴とする請求項1に記載の圧縮機。 - 前記回転子には、前記回転子の前記回転軸方向に磁力の異なる複数の前記磁石を備え、
前記磁石のうち、磁力の強い磁石には磁力の弱い磁石が対向して配されていることを特徴とする請求項1に記載の圧縮機。 - 前記回転子には、前記回転子の前記回転軸方向に長さの異なる複数の前記磁石を備え、
前記磁石のうち、長い磁石には短い磁石が対向して配されていることを特徴とする請求項1に記載の圧縮機。 - 請求項1乃至請求項4のいずれか一項に記載の圧縮機を備えるヒートポンプ装置。
- 請求項5に記載のヒートポンプ装置を備える空気調和機。
- 請求項5に記載のヒートポンプ装置を備える冷凍機。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014552860A JP6122031B2 (ja) | 2012-12-21 | 2012-12-21 | 圧縮機、ヒートポンプ装置、空気調和機及び冷凍機 |
PCT/JP2012/083302 WO2014097478A1 (ja) | 2012-12-21 | 2012-12-21 | 圧縮機、ヒートポンプ装置、空気調和機及び冷凍機 |
US14/652,891 US10027191B2 (en) | 2012-12-21 | 2012-12-21 | Compressor, heat pump device, air conditioner, and freezing machine |
CN201320833657.7U CN203717351U (zh) | 2012-12-21 | 2013-12-16 | 压缩机、热泵装置、空调机及制冷机 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2012/083302 WO2014097478A1 (ja) | 2012-12-21 | 2012-12-21 | 圧縮機、ヒートポンプ装置、空気調和機及び冷凍機 |
Publications (1)
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WO2014097478A1 true WO2014097478A1 (ja) | 2014-06-26 |
Family
ID=50977854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2012/083302 WO2014097478A1 (ja) | 2012-12-21 | 2012-12-21 | 圧縮機、ヒートポンプ装置、空気調和機及び冷凍機 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10027191B2 (ja) |
JP (1) | JP6122031B2 (ja) |
CN (1) | CN203717351U (ja) |
WO (1) | WO2014097478A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11063485B2 (en) | 2018-05-11 | 2021-07-13 | Steering Solutions Ip Holding Corporation | Interior permanent magnet machine with hybrid rotor topology |
WO2022085079A1 (ja) * | 2020-10-20 | 2022-04-28 | 三菱電機株式会社 | 回転子、電動機、圧縮機および冷凍サイクル装置 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6173632B2 (ja) * | 2017-02-22 | 2017-08-02 | 三菱電機株式会社 | 圧縮機、ヒートポンプ装置、空気調和機及び冷凍機 |
DE102017123085A1 (de) * | 2017-10-05 | 2019-04-11 | Vorwerk & Co. Interholding Gmbh | Außenläufermotor |
JP6877318B2 (ja) | 2017-11-14 | 2021-05-26 | 住友重機械工業株式会社 | ギヤモータ |
EP3853973A1 (en) * | 2018-09-17 | 2021-07-28 | Arçelik Anonim Sirketi | A hermetic compressor weight balancing rotor |
KR102172260B1 (ko) * | 2019-01-11 | 2020-10-30 | 엘지전자 주식회사 | 구동 모터 및 이를 구비하는 압축기 |
DE102019129243A1 (de) * | 2019-10-30 | 2021-05-06 | Valeo Siemens Eautomotive Germany Gmbh | Rotor für eine elektrische Maschine, zugehöriges Herstellungsverfahren und elektrische Maschine zum Antreiben eines Fahrzeugs |
CN114109822B (zh) * | 2020-08-25 | 2023-11-14 | 精工爱普生株式会社 | 真空装置 |
TR202022370A2 (tr) * | 2020-12-30 | 2022-07-21 | Arçeli̇k Anoni̇m Şi̇rketi̇ | Denge ağirliği olarak kullanilan miknatislar i̇çeren bi̇r rotor ve bi̇r hermeti̇k kompresör |
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KR101940755B1 (ko) * | 2012-01-16 | 2019-01-21 | 삼성전자 주식회사 | 회전자 및 이를 포함하는 전동기 |
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2012
- 2012-12-21 WO PCT/JP2012/083302 patent/WO2014097478A1/ja active Application Filing
- 2012-12-21 US US14/652,891 patent/US10027191B2/en active Active
- 2012-12-21 JP JP2014552860A patent/JP6122031B2/ja active Active
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2013
- 2013-12-16 CN CN201320833657.7U patent/CN203717351U/zh not_active Expired - Lifetime
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JPH01113558U (ja) * | 1988-01-21 | 1989-07-31 | ||
JPH0660269U (ja) * | 1993-01-19 | 1994-08-19 | 株式会社三協精機製作所 | 小型モータ |
JP2000134882A (ja) * | 1998-10-21 | 2000-05-12 | Matsushita Electric Ind Co Ltd | 永久磁石モータのロータ及びそれを搭載したコンプレッサ |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US11063485B2 (en) | 2018-05-11 | 2021-07-13 | Steering Solutions Ip Holding Corporation | Interior permanent magnet machine with hybrid rotor topology |
CN110474455B (zh) * | 2018-05-11 | 2022-07-19 | 操纵技术Ip控股公司 | 具有混合转子拓扑结构的内置式永磁体机器 |
WO2022085079A1 (ja) * | 2020-10-20 | 2022-04-28 | 三菱電機株式会社 | 回転子、電動機、圧縮機および冷凍サイクル装置 |
Also Published As
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US20150333582A1 (en) | 2015-11-19 |
JP6122031B2 (ja) | 2017-04-26 |
JPWO2014097478A1 (ja) | 2017-01-12 |
CN203717351U (zh) | 2014-07-16 |
US10027191B2 (en) | 2018-07-17 |
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