WO2019130439A1 - Heat pump hot water supplying outdoor unit - Google Patents

Heat pump hot water supplying outdoor unit Download PDF

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Publication number
WO2019130439A1
WO2019130439A1 PCT/JP2017/046728 JP2017046728W WO2019130439A1 WO 2019130439 A1 WO2019130439 A1 WO 2019130439A1 JP 2017046728 W JP2017046728 W JP 2017046728W WO 2019130439 A1 WO2019130439 A1 WO 2019130439A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
compressor
internal heat
outdoor unit
muffler
Prior art date
Application number
PCT/JP2017/046728
Other languages
French (fr)
Japanese (ja)
Inventor
周二 茂木
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to EP17936807.1A priority Critical patent/EP3734194B1/en
Priority to JP2019561442A priority patent/JP6841350B2/en
Priority to PCT/JP2017/046728 priority patent/WO2019130439A1/en
Publication of WO2019130439A1 publication Critical patent/WO2019130439A1/en

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Classifications

    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/02—Water heaters
    • 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
    • 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
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • F25B25/005—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00 using primary and secondary systems
    • 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
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers
    • 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
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/054—Compression system with heat exchange between particular parts of the system between the suction tube of the compressor and another part of the cycle

Definitions

  • the present invention relates to a heat pump water heater outdoor unit.
  • Heat pump hot water supply systems that use the heat of the atmosphere are widely used.
  • the evaporator heats the heat of the atmosphere to the refrigerant
  • the propeller fan blows the air to the evaporator
  • the compressor compresses the refrigerant
  • the compressed high temperature high pressure refrigerant heats the water.
  • a water refrigerant heat exchanger etc. is mounted.
  • Insufficient refrigerant drawn into the compressor may cause noise.
  • the freezing apparatus provided with the muffler in the suction side of a compressor is proposed. Since the muffler can reduce the pulsation of the flow of the refrigerant on the suction side of the compressor, the noise of the compressor due to the shortage of the refrigerant is suppressed.
  • the compressor disposed inside the heat pump water heater outdoor unit is driven at a frequency of several tens rps (Hz) to approximately one hundred rps (Hz) during operation. For this reason, in the compressor, a large vibration occurs at frequency components that are integral multiples of this frequency.
  • the generated vibration is transmitted to various parts such as a heat exchanger via a suction pipe and a discharge pipe connected to the compressor, whereby low frequency noise and noise are generated from each part of the housing.
  • the muffler is integrally fixed to the side wall of the compressor.
  • the center of gravity of the entire compressor including the muffler is shifted to the muffler side.
  • a moment acts in such a direction as to tilt the compressor toward the muffler, there is a possibility that abnormal vibration specific to the compressor may occur.
  • Such vibration of the compressor causes an increase in low frequency noise and noise generated from each part of the housing.
  • the present invention has been made to solve the problems as described above, and is a heat pump water heater capable of reducing low frequency noise and noise radiated from each part of the apparatus by suppressing vibration generated in the compressor. It aims at providing an outdoor unit.
  • a heat pump water heater outdoor unit comprises a bottom plate, a compressor disposed on the bottom plate, a muffler fixed to the outer surface of the compressor, and an internal heat exchanger fixed to the outer surface of the compressor. , And the internal heat exchanger is configured to be disposed on the opposite side of the muffler across the compressor.
  • the internal heat exchanger and the muffler are fixed to the compressor.
  • the internal heat exchanger is disposed on the opposite side of the muffler across the compressor. According to such a configuration, the center of gravity of the entire compressor including the internal heat exchanger and the muffler can be brought close to the center of the compressor, so that the abnormal abnormal vibration generated in the compressor is suppressed. This makes it possible to reduce the low frequency noise and noise emitted from each part of the device.
  • FIG. 2 is a front view showing the internal structure of the heat pump water heater outdoor unit 1 of the first embodiment.
  • BRIEF DESCRIPTION OF THE DRAWINGS It is the external appearance perspective view which looked at the heat pump hot water supply outdoor apparatus 1 of Embodiment 1 from diagonally front.
  • BRIEF DESCRIPTION OF THE DRAWINGS It is the external appearance perspective view which looked at the heat pump hot water supply outdoor unit 1 of Embodiment 1 from diagonally back.
  • BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the refrigerant circuit and water circuit of a heat pump hot water supply system provided with the heat pump hot water supply outdoor apparatus 1 of Embodiment 1.
  • FIG. 13 is a front view showing an internal structure of the heat pump water heater outdoor unit 1 of the second embodiment. It is the enlarged view which looked at the structure of the periphery of the compressor shown in FIG. 1 from the front side. It is the figure which looked at the structure of the periphery of the compressor shown in FIG. 9 from C direction. It is the figure which looked at the structure of the periphery of the compressor shown in FIG. 9 from the D direction.
  • FIG. 1 is a front view showing the internal structure of the heat pump water heater outdoor unit 1 of the first embodiment.
  • FIG. 2 is an external perspective view of the heat pump water heater outdoor unit 1 according to the first embodiment as viewed obliquely from the front.
  • FIG. 3 is an external perspective view of the heat pump water heater outdoor unit 1 according to the first embodiment as viewed obliquely from behind.
  • FIG. 4 is a diagram showing a refrigerant circuit and a water circuit of a heat pump water heater system including the heat pump water heater outdoor unit 1 according to the first embodiment.
  • the heat pump water heater outdoor unit 1 of the present embodiment is installed outdoors.
  • the heat pump water heater outdoor unit 1 heats a liquid heat medium.
  • the heat medium in the present embodiment is water.
  • the heat pump water heater outdoor unit 1 heats water to generate hot water.
  • the heat medium in the present invention may be a brine other than water, such as an aqueous solution of calcium chloride, an aqueous solution of ethylene glycol, an alcohol and the like.
  • the heat pump water heater outdoor unit 1 is provided with a base 17 as a bottom plate that forms the bottom of the housing.
  • a machine room 14 is formed on the right side on the base 17 as viewed from the front, and a fan room 15 is formed on the left side.
  • the machine room 14 and the fan room 15 are separated by a partition plate 16 extending in the vertical direction.
  • the casing forming the outer shell of the heat pump water heater outdoor unit 1 further includes a front panel 18, a side panel 19, and a top panel 20.
  • the front panel 18 is configured of a front surface portion 18 a covering the front surface of the heat pump water heater outdoor unit 1 and a left side surface portion 18 b covering the left side surface.
  • the side panel 19 is configured by a rear surface 19a that covers a part of the rear surface of the heat pump water heater outdoor unit 1 and a right side 19b that covers the right side.
  • These components of the housing are, for example, molded from sheet metal.
  • the outer surface of the heat pump water heater outdoor unit 1 is covered by this casing except for the air refrigerant heat exchanger 7 disposed on the rear side.
  • the front panel 18 is formed with an opening for discharging the air that has passed through the fan chamber 15, and a grid 18c is attached to the opening.
  • FIG. 1 has shown the state which removed each part of the housing
  • FIG. 1 illustration of some component devices is omitted.
  • a compressor 2 for compressing the refrigerant
  • a muffler 2b for suppressing pulsation of the drawn refrigerant, heat between the high pressure refrigerant and the low pressure refrigerant
  • An internal heat exchanger 11 for replacement, an expansion valve 10 (not shown) for decompressing the refrigerant, and refrigerant pipes such as a suction pipe 5 and a discharge pipe 4 connecting these are incorporated.
  • the compressor 2 includes a cylindrical shell 2a.
  • the compressor 2 includes a compression unit (not shown) and a motor (not shown) inside the shell 2a.
  • the compression unit compresses the refrigerant.
  • the compression unit may be, for example, any of a reciprocating type, a scroll type, and a rotary type.
  • the motor drives the compression unit. Electric power supplied from the outside drives the motor of the compressor.
  • the refrigerant is sucked into the compressor 2 through the suction pipe 5.
  • a discharge pipe 4 for discharging the refrigerant compressed inside the compressor 2 is connected to an upper portion of the compressor 2. The installation structure of the compressor 2 will be described in detail later.
  • the muffler 2 b is connected to the side surface of the shell 2 a of the compressor 2 via a muffler holder 2 d.
  • the installation structure of the muffler 2b will be described in detail later.
  • the outer shape of the muffler 2b may be cylindrical like the shell 2a of the compressor 2.
  • the muffler 2 b is connected to the middle of the suction pipe 5.
  • the low pressure refrigerant gas is sucked into the compressor 2 through the suction pipe 5 and the muffler 2b.
  • the high pressure refrigerant gas compressed by the compressor 2 is discharged to the discharge pipe 4.
  • the internal heat exchanger 11 is bent and formed into a rectangular shape in a state in which a long high pressure refrigerant pipe and a long low pressure refrigerant pipe are in close contact with each other.
  • heat is exchanged between the refrigerant in the high pressure refrigerant pipe and the refrigerant in the low pressure refrigerant pipe.
  • the low pressure refrigerant is heated.
  • the machine room 14 is configured as a space that is long in the vertical direction.
  • the internal heat exchanger 11 is connected to the side surface of the shell 2a of the compressor 2 via the internal heat exchanger holder 2e such that the longitudinal direction of the rectangle is the vertical direction of the machine chamber 14.
  • the installation structure of the internal heat exchanger 11 will be described in detail later.
  • a coil incorporating member is attached to the outer side surface of its main body. By energizing the coil from the outside, the internal flow path resistance adjustment unit is operated to adjust the flow path resistance of the refrigerant.
  • the expansion valve 10 can adjust the pressure of the high pressure refrigerant on the upstream side thereof and the pressure of the low pressure refrigerant on the downstream side thereof.
  • the fan room 15 has a larger space than the machine room 14 in order to secure an air path.
  • the blower 6 is incorporated in the blower chamber 15.
  • the blower 6 includes two to three propeller blades and a motor that rotationally drives the propeller blades. The electric power supplied from the outside rotates the motor and propeller blades.
  • An air refrigerant heat exchanger 7 as a first heat exchanger is installed on the rear surface side of the fan chamber 15 so as to face the fan 6.
  • the air refrigerant heat exchanger 7 includes a large number of aluminum thin plate fins and a long refrigerant pipe closely contacting the aluminum thin plate fins and reciprocating several times.
  • the air refrigerant heat exchanger 7 has a flat plate-like outer shape bent in an L-shape.
  • the air refrigerant heat exchanger 7 is installed from the rear surface to the left surface of the heat pump water heater outdoor unit 1.
  • the rear end of the air refrigerant heat exchanger 7 extends to the rear of the machine chamber 14.
  • the partition plate 16 has a flat plate-like outer shape bent in an L shape, and is installed to partition a space from the front surface of the heat pump water heater outdoor unit 1 to the end on the rear surface side of the air refrigerant heat exchanger 7 Be done.
  • heat is exchanged between the refrigerant in the refrigerant pipe and the air around the fins.
  • the air flow of the air flowing between the fins is increased by the blower 6 and adjusted, and the amount of heat exchange is increased and adjusted.
  • the water-refrigerant heat exchanger 8 is installed on the base 17 in the lower part of the fan room 15.
  • the water-refrigerant heat exchanger 8 is housed and installed in a rectangular parallelepiped storage container 12 in a state of being covered by a heat insulating material.
  • the water-refrigerant heat exchanger 8 is bent and formed so that it can be stored in the storage container 12 in a state where the long water pipe and the long refrigerant pipe are in close contact with each other.
  • heat is exchanged between the refrigerant in the refrigerant pipe and the water in the water pipe, that is, the heat medium.
  • the water, ie, the heat medium is heated.
  • a blower 6 is disposed above the water refrigerant heat exchanger 8.
  • the compressor 2 outlet portion is connected to the refrigerant inlet portion of the water-refrigerant heat exchanger 8 via the discharge pipe 4.
  • the refrigerant outlet of the water refrigerant heat exchanger 8 is connected to the high pressure refrigerant inlet of the internal heat exchanger 11 in the machine chamber 14 via a refrigerant pipe.
  • the high pressure refrigerant outlet of the internal heat exchanger 11 is connected to the inlet of the expansion valve 10 in the machine chamber 14 via a refrigerant pipe.
  • the outlet of the expansion valve 10 is connected to the refrigerant inlet of the air refrigerant heat exchanger 7 via a refrigerant pipe.
  • the refrigerant outlet of the air refrigerant heat exchanger 7 is connected to the low pressure refrigerant inlet of the internal heat exchanger 11 via a refrigerant pipe.
  • the low pressure refrigerant outlet of the internal heat exchanger 11 is connected to the inlet of the compressor 2 via the suction pipe 5.
  • Other refrigerant circuit components may be attached to the middle of each refrigerant pipe.
  • an electrical component storage box 9 is installed in the upper part of the machine room 14.
  • An electronic substrate 24 is accommodated in the electrical component storage box 9.
  • Electronic parts, electric parts and the like that constitute modules that drive and control the compressor 2, the expansion valve 10, the blower 6 and the like are attached to the electronic substrate 24.
  • Each module is controlled, for example, as follows.
  • the rotation speed of the motor of the compressor 2 is changed to a rotation speed of several tens rps (Hz) to one hundred rps (Hz).
  • the opening degree of the expansion valve 10 is changed.
  • the rotational speed of the blower 6 is changed to a rotational speed of about several hundred rpm to about 1,000 rpm.
  • the electrical component storage box 9 is provided with a terminal block 9a for connecting external electrical wiring.
  • a service panel 27 for protecting the terminal block 9a and a water inlet valve 28 and a hot water outlet valve 29 described later is attached to the right side surface 19b.
  • the refrigerant is sealed in the sealed space of the refrigerant circuit provided in the heat pump water heater outdoor unit 1.
  • the refrigerant may be, for example, a CO 2 refrigerant.
  • water circuit components including an inner pipe 30 and an inner pipe 31 are incorporated.
  • the inner pipe 30 connects between the water inlet valve 28 and the water inlet of the water refrigerant heat exchanger 8.
  • the internal pipe 31 connects between the hot water outlet of the water refrigerant heat exchanger 8 and the hot water outlet valve 29.
  • a heat pump hot water supply system is configured by the heat pump hot water supply outdoor unit 1 and the hot water storage device 33.
  • the hot water storage apparatus 33 includes, for example, a hot water storage tank 34 having a capacity of about several hundred liters, and a water pump 35 for sending the water in the hot water storage tank 34 to the heat pump water heater outdoor unit 1.
  • the heat pump water heater outdoor unit 1 and the hot water storage device 33 are connected via an external pipe 36, an external pipe 37, and an electrical wiring (not shown).
  • the lower portion of the hot water storage tank 34 is connected to the inlet of the water pump 35 via a pipe 38.
  • the external pipe 36 connects between the outlet of the water pump 35 and the water inlet valve 28 of the heat pump water heater outdoor unit 1.
  • the external pipe 37 connects between the hot water outlet valve 29 of the heat pump water heater outdoor unit 1 and the hot water storage device 33.
  • the external pipe 37 can communicate with the upper portion of the hot water storage tank 34 via the pipe 39 in the hot water storage device 33.
  • the hot water storage device 33 further includes a mixing valve 40.
  • a hot water supply pipe 41 branched from the pipe 39, a water supply pipe 42 through which water supplied from a water source such as a water pipe passes, and a hot water supply pipe 43 through which hot water supplied to the user passes are connected to the mixing valve 40 There is.
  • the mixing valve 40 regulates the hot water supply temperature by adjusting the mixing ratio of hot water, ie, high temperature water flowing in from the hot water supply pipe 41, and water, ie, low temperature water flowing in from the water supply pipe.
  • the hot water mixed by the mixing valve 40 is sent through the hot water supply pipe 43 to a user-side terminal such as a bath, a shower, a faucet, and a dishwasher.
  • the water supply pipe 44 branched from the water supply pipe 42 is connected to the lower part of the hot water storage tank 34. The water flowing in from the water supply pipe 44 is stored at the lower side in the hot water storage tank 34.
  • the heat storage operation is an operation of accumulating the hot water in the hot water storage tank 34 by sending the hot water heated by the heat pump water heater outdoor unit 1 to the hot water storage device 33.
  • the heat storage operation it is as follows.
  • the compressor 2, the blower 6 and the water pump 35 are operated.
  • the rotational speed of the motor of the compressor 2 can be varied in the range of several tens rps (Hz) to hundreds rps (Hz).
  • Hz tens rps
  • Hz tens rps
  • the rotational speed of the motor of the blower 6 changes to about several hundred rpm to about 1,000 rpm, and the flow rate of the air passing through the air refrigerant heat exchanger 7 is changed to change the heat of the refrigerant and air in the air refrigerant heat exchanger 7 Control the exchange amount.
  • the air is sucked from the rear of the air refrigerant heat exchanger 7 installed behind the blower 6, passes through the air refrigerant heat exchanger 7, passes through the blower chamber 15, and is opposite to the air refrigerant heat exchanger 7. It is discharged to the front of the front panel 18.
  • the expansion valve 10 adjusts the flow path resistance of the refrigerant. Thereby, the pressure of the high pressure refrigerant on the upstream side of the expansion valve 10 and the pressure of the low pressure refrigerant on the downstream side can be adjusted and controlled.
  • the rotational speed of the compressor 2, the rotational speed of the blower 6, and the flow path resistance of the expansion valve 10 are controlled in accordance with the installation environment and use conditions of the heat pump water heater outdoor unit 1.
  • the low pressure refrigerant is sucked into the compressor 2 through the suction pipe 5 and the muffler 2b.
  • the muffler 2 b eliminates the pulsating noise of the refrigerant drawn into the compressor 2.
  • the low pressure refrigerant is compressed in the compression section in the compressor 2 to become a high temperature high pressure refrigerant.
  • the high temperature and high pressure refrigerant is discharged from the compressor 2 to the discharge pipe 4.
  • the high temperature and high pressure refrigerant flows into the refrigerant inlet portion of the water refrigerant heat exchanger 8 through the discharge pipe 4.
  • the high-temperature and high-pressure refrigerant exchanges heat with water in the water refrigerant heat exchanger 8 to heat the water and generate hot water.
  • the refrigerant lowers the enthalpy while passing through the water refrigerant heat exchanger 8 to lower the temperature.
  • the high temperature refrigerant whose temperature has been lowered flows from the refrigerant outlet of the water refrigerant heat exchanger 8 through the refrigerant pipe into the high pressure refrigerant inlet of the internal heat exchanger 11.
  • the high-pressure refrigerant exchanges heat with the low-pressure refrigerant in the internal heat exchanger 11 to further reduce the temperature by lowering the enthalpy.
  • the high-pressure refrigerant whose temperature has been lowered flows from the high-pressure refrigerant outlet of the internal heat exchanger 11 through the refrigerant pipe into the inlet of the expansion valve 10.
  • the high-pressure refrigerant is reduced in temperature by the expansion valve 10 to reduce its temperature, and becomes a low-temperature low-pressure refrigerant.
  • the low-temperature low-pressure refrigerant flows from the outlet of the expansion valve 10 through the refrigerant pipe to the inlet of the air-refrigerant heat exchanger 7.
  • the low temperature low pressure refrigerant exchanges heat with air in the air refrigerant heat exchanger 7 to increase enthalpy, and flows into the refrigerant pipe from the outlet of the air refrigerant heat exchanger 7 to the low pressure refrigerant inlet of the internal heat exchanger 11 To flow.
  • the low pressure refrigerant exchanges heat with the high pressure refrigerant in the internal heat exchanger 11 to increase enthalpy.
  • the low-pressure refrigerant flowing into the suction pipe 5 from the outlet of the internal heat exchanger 11 is drawn into the compressor 2.
  • the refrigerant circulates to perform the heat pump cycle.
  • the lower part of the hot water storage tank 34 flows into the water inlet of the water refrigerant heat exchanger 8 through the pipe 38, the outer pipe 36, the water inlet valve 28 and the inner pipe 30 by driving the water pump 35. Do. This water exchanges heat with the refrigerant in the water refrigerant heat exchanger 8 and is heated to generate hot water.
  • the hot water flows into the upper portion of the hot water storage tank 34 through the inner pipe 31, the hot water outlet valve 29, the outer pipe 37 and the pipe 39. By performing such a heat storage operation, high temperature hot water accumulates in the hot water storage tank 34 from the top toward the bottom.
  • the hot water heated by the heat pump water heater outdoor unit 1 may be supplied directly to the user without being stored in the hot water storage tank 34. Further, the heat medium heated by the heat pump water heater outdoor unit 1 may be used for heating or the like.
  • the following effects can be obtained by providing the internal heat exchanger 11. Heat exchange can be performed from the high pressure refrigerant that has passed through the water refrigerant heat exchanger 8 to the low pressure refrigerant that has passed through the air refrigerant heat exchanger 7. Thereby, the heat efficiency of a heat pump cycle can be raised.
  • FIG. 5 is an enlarged view of the peripheral configuration of the compressor shown in FIG. 1 as viewed from the front side.
  • FIG. 6 is the figure which looked at the structure of the periphery of the compressor shown in FIG. 5 from the A direction.
  • FIG. 7 is a view of the configuration around the compressor shown in FIG. 5 as viewed from the B direction.
  • the installation structure of the compressor 2, the muffler 2b, and the internal heat exchanger 11 will be described below with reference to these figures.
  • a leg member 2 c is fixed to the bottom of the shell 2 a of the compressor 2.
  • the compressor 2 is mounted on the base 17 via the leg members 2c.
  • the leg member 2c has a strength capable of supporting the weight of the compressor 2 and components fixed thereto.
  • the leg member 2c is preferably made of metal.
  • the leg member 2c in the embodiment is a triangular plate member.
  • the leg member 2c is arrange
  • the leg member 2c is preferably arranged such that one side of the triangle is parallel to the internal heat exchanger 11 described later in top view.
  • the upper surface of the leg member 2 c is joined to the bottom surface of the shell 2 a of the compressor 2.
  • the leg members 2 c may be welded to the shell 2 a of the compressor 2.
  • the heat pump water heater outdoor unit 1 includes a plurality of vibration isolation mounts 3.
  • the anti-vibration mount is molded using, for example, a rubber material or a metal spring material.
  • the anti-vibration mount 3 is disposed between the upper surface of the base 17 and the lower surface of the leg member 2c.
  • the anti-vibration mounts 3 are disposed at three corners of the triangular leg member 2c.
  • the outer shape of the anti-vibration mount 3 may be cylindrical.
  • the compressor 2 is installed on the upper surface of the base 17 with the anti-vibration mount 3 interposed.
  • the base 17 may be provided with a plurality of pins for connecting the compressor 2 to the base 17.
  • the anti-vibration mount 3 has a cylindrical shape having a hole through which the pins can be inserted.
  • the pin passes through the hole of the anti-vibration mount 3 and the hole provided in the leg member 2c.
  • the pin is screwed into a bolt not shown.
  • the compressor 2 is connected to the base 17 via the vibration isolation mount 3 by the vibration isolation mount 3 being sandwiched between the base 17 and the leg members 2 c.
  • a muffler holder 2 d is joined to the outer surface of the shell 2 a of the compressor 2.
  • the muffler holder 2d has a strength capable of supporting the weight of the muffler 2b.
  • the muffler holder 2 d is preferably made of metal.
  • the muffler holder 2 d has a fixed barrel fixed to the outer surface of the compressor 2 and a fixed arm fixed to the muffler 2 b. The fixed barrel is bent along the circumferential direction of the side surface of the compressor 2.
  • the fixing arm extends radially outward of the shell 2a of the compressor 2 so as to sandwich the muffler 2b from both ends of the fixing barrel. That is, the muffler holder 2d has a shape obtained by bending a plate material into an M shape.
  • the fixed barrel of the muffler holder 2 d is welded to the outer surface of the shell 2 a of the compressor 2, for example. Then, the muffler 2b is welded to, for example, a fixed arm of the muffler holder 2d.
  • An internal heat exchanger holder 2 e is joined to the outer surface of the shell 2 a of the compressor 2.
  • the internal heat exchanger holder 2 e has a strength capable of supporting the weight of the internal heat exchanger 11.
  • the internal heat exchanger holder 2e is preferably made of metal.
  • the internal heat exchanger holder 2 e has a fixed barrel fixed to the outer surface of the compressor 2 and a fixed arm fixed to the internal heat exchanger 11.
  • the fixed barrel is constituted by a plane facing the side surface of the compressor 2.
  • the fixed arms extend at right angles radially outward of the shell 2a of the compressor 2 from both ends of the fixed barrel in the perpendicular direction.
  • the internal heat exchanger holder 2e has a shape obtained by bending a plate material into a U-shape.
  • the fixed body portion of the internal heat exchanger holder 2 e is welded, for example, to the outer surface of the shell 2 a of the compressor 2.
  • the internal heat exchanger holder 2e is fixed at a position rotated 180 ° along the circumferential direction of the outer surface of the compressor 2 from the muffler holder 2d.
  • the internal heat exchanger 11 is fixed to the fixed arm of the internal heat exchanger holder 2e.
  • the internal heat exchanger 11 is fixed at a position on the back side of the compressor 2 when viewed from the side of the muffler 2 b, that is, at a position on the opposite side of the muffler 2 b with the compressor 2 interposed therebetween.
  • the internal heat exchanger 11 is bent and formed into a spiral shape in a state in which a long high pressure refrigerant pipe and a long low pressure refrigerant pipe are in close contact with each other.
  • the internal heat exchanger 11 may be a joint pipe in which a high pressure refrigerant pipe and a low pressure refrigerant pipe are in close contact with each other, or may be a double pipe.
  • the bent and formed pipes are bundled and tightened by a metal band member 21.
  • the machine room 14 is configured as a space that is long in the vertical direction.
  • the internal heat exchanger 11 is fixed to the fixed arm of the internal heat exchanger holder 2 e in a direction in which the longitudinal direction of the rectangle is the vertical direction of the machine chamber 14.
  • a fixing portion for fixing a fixing arm of the internal heat exchanger holder 2e is provided at a central portion of the internal heat exchanger 11.
  • the internal heat exchanger 11 is fixed to the fixed arm of the internal heat exchanger holder 2 e with the elastic member 13 interposed.
  • the internal heat exchanger 11 and the muffler 2b are also characterized in the arrangement in the vertical direction. That is, the internal heat exchanger 11 and the muffler 2b are fixed at positions where the heights of their respective centers of gravity become the same. Further, the lower end position of the internal heat exchanger 11 does not contact the upper surface of the base 17 and is located below the upper end position of the anti-vibration mount 3.
  • the compressor 2 disposed inside the heat pump water heater outdoor unit 1 is driven at a frequency of several tens rps (Hz) to approximately one hundred rps (Hz) during operation. For this reason, in the compressor 2, large vibrations occur at frequency components that are integral multiples of this frequency.
  • the generated vibration is transmitted to various components such as the air refrigerant heat exchanger 7 via the connected suction pipe 5 and discharge pipe 4 so that low frequency noise and noise are generated from each part of the housing.
  • mass components such as the muffler 2 b and the internal heat exchanger 11 are fixed to the compressor 2.
  • the internal heat exchanger 11 is fixed to the opposite side of the muffler 2 b with the compressor 2 interposed therebetween. According to such a configuration, the center of gravity of the entire compressor 2 including the internal heat exchanger 11 and the muffler 2b approaches the central axis of the shell 2a, so the moment acting on the compressor is reduced. As a result, since the occurrence of abnormal vibration due to the inclination of the compressor 2 can be suppressed, the occurrence of low frequency noise and noise is suppressed.
  • the heat pump water heater outdoor unit 1 of the first embodiment is configured such that the height of the center of gravity of the internal heat exchanger 11 and the height of the center of gravity of the muffler 2b are the same height. Thereby, it can suppress that the inclination of the compressor 2 increases by the change of a moment.
  • the internal heat exchanger 11 is fixed to the fixed arm of the internal heat exchanger holder 2 e with the elastic member 13 interposed. According to such a configuration, the vibration transmitted from the compressor 2 to the internal heat exchanger 11 is attenuated, so the vibration generated in the internal heat exchanger 11 is suppressed. Further, in the internal heat exchanger 11, a pipe bent in a spiral shape is tightened by the band member 21. Thereby, the vibration generated in the internal heat exchanger 11 is further suppressed.
  • the anti-vibration mount 3 is disposed between the upper surface of the base 17 and the lower surface of the leg member 2c. Thereby, the vibration of the compressor disposed on the upper surface of the leg member 2c can be effectively damped.
  • the heat pump water heater outdoor unit 1 of Embodiment 1 may employ
  • the shape of the muffler holder 2d is not limited as long as the muffler 2b can be fixed to the side surface of the shell 2a of the compressor 2.
  • the shape of the internal heat exchanger holder 2e is also not limited as long as the internal heat exchanger 11 can be fixed to the side surface of the shell 2a of the compressor 2. In addition, this is the same also in the heat pump water heater outdoor unit 1 of Embodiment 2 mentioned later.
  • Second Embodiment Second Embodiment A second embodiment will now be described with reference to FIGS.
  • differences from the above-described first embodiment will be mainly described, and the description of the same or corresponding parts will be simplified or omitted.
  • FIG. 8 is a front view showing the internal structure of the heat pump water heater outdoor unit 1 of the second embodiment.
  • FIG. 9 is an enlarged view of the peripheral configuration of the compressor shown in FIG. 1 as viewed from the front side.
  • FIG. 10 is a view of the configuration around the compressor shown in FIG. 9 as viewed from the C direction.
  • FIG. 11 is a view of the configuration around the compressor shown in FIG. 9 as viewed from the D direction.
  • the heat pump water heater outdoor unit 1 is characterized in that it has an internal heat exchanger 22 having a shape curved in an arc along the shell 2a of the compressor 2. doing. More specifically, as shown in FIG. 10, the internal heat exchanger 22 has a shape that is a concentric arc of the shell 2a of the compressor 2 in top view. According to such a shape, the space in the machine chamber 14 can be used more effectively than the shape in which the internal heat exchanger 22 is in a straight line in top view. As a result, it is possible to extend the length in the short direction of the internal heat exchanger 22 while suppressing the size increase, the weight increase, and the material cost increase of the heat pump water heater outdoor unit 1.
  • a heat insulating material that doubles as a sound absorbing material may be provided around the compressor 2 including the muffler 2 b and the internal heat exchanger 22.
  • the internal heat exchanger 22 since the internal heat exchanger 22 is curved, expansion of the dimension of a heat insulating material can be prevented.

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  • Physics & Mathematics (AREA)
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  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Compressor (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

A heat pump hot water supplying outdoor unit comprises a bottom plate, a compressor disposed on the bottom plate, a muffler fixed to an external face of the compressor, and an internal heat exchanger fixed to an external face of the compressor. In addition, the internal heat exchanger is configured so as to be disposed on the side opposite to the muffler with the compressor therebetween. The muffler is preferably fixed to a muffler holder fixed to an external face of the compressor. The internal heat exchanger is fixed to an internal heat exchanger holder fixed to an external face of the compressor. In addition, the internal heat exchanger is fixed in a position so that the height of the center of gravity of same is the same as the height of the center of gravity of the muffler.

Description

ヒートポンプ給湯室外機Heat pump water heater outdoor unit
　本発明は、ヒートポンプ給湯室外機に関する。 The present invention relates to a heat pump water heater outdoor unit.
　大気の熱を利用するヒートポンプ給湯システムが広く用いられている。ヒートポンプ給湯システムが備えるヒートポンプ給湯室外機には、大気の熱を冷媒に吸収させる蒸発器、蒸発器へ送風するプロペラファン、冷媒を圧縮する圧縮機、圧縮された高温高圧の冷媒で水を加熱する水冷媒熱交換器などが搭載されている。 Heat pump hot water supply systems that use the heat of the atmosphere are widely used. In the heat pump water heater outdoor unit provided in the heat pump water heating system, the evaporator heats the heat of the atmosphere to the refrigerant, the propeller fan blows the air to the evaporator, the compressor compresses the refrigerant, and the compressed high temperature high pressure refrigerant heats the water. A water refrigerant heat exchanger etc. is mounted.
　圧縮機に吸入される冷媒が不足すると騒音発生の原因となる。例えば、特許文献１では、圧縮機の運転時に生じる騒音を低減するために、圧縮機の吸入側にマフラを備えた冷凍装置が提案されている。マフラは、圧縮機の吸入側において冷媒の流れの脈動を低減することができるため、冷媒不足による圧縮機の騒音が抑制される。 Insufficient refrigerant drawn into the compressor may cause noise. For example, in patent document 1, in order to reduce the noise which arises at the time of driving | operation of a compressor, the freezing apparatus provided with the muffler in the suction side of a compressor is proposed. Since the muffler can reduce the pulsation of the flow of the refrigerant on the suction side of the compressor, the noise of the compressor due to the shortage of the refrigerant is suppressed.
日本特開２００７－２７１２１１号公報Japanese Patent Application Laid-Open No. 2007-271211
　ヒートポンプ給湯室外機の内部に配置された圧縮機は、運転中に数十ｒｐｓ（Ｈｚ）から百ｒｐｓ（Ｈｚ）程度の周波数で駆動する。このため、圧縮機には、この周波数の整数倍の周波数成分で大きな振動が発生する。発生した振動は、圧縮機に接続された吸入管及び吐出管を介して熱交換器等の各種部品に伝達されることにより、筐体各部から低周波音及び騒音が発生する。 The compressor disposed inside the heat pump water heater outdoor unit is driven at a frequency of several tens rps (Hz) to approximately one hundred rps (Hz) during operation. For this reason, in the compressor, a large vibration occurs at frequency components that are integral multiples of this frequency. The generated vibration is transmitted to various parts such as a heat exchanger via a suction pipe and a discharge pipe connected to the compressor, whereby low frequency noise and noise are generated from each part of the housing.
　上記の特許文献１に記載されている装置では、圧縮機の側壁にマフラが一体に固定されている。このような構造では、マフラを含んだ圧縮機全体の重心がマフラ側にずれてしまう。この場合、圧縮機をマフラ側へと傾斜させる方向のモーメントが作用するため、圧縮機に特異的な異常振動が発生する可能性がある。このような圧縮機の振動は、筐体各部から発生する低周波音及び騒音が増大する要因となる。 In the device described in Patent Document 1 above, the muffler is integrally fixed to the side wall of the compressor. In such a structure, the center of gravity of the entire compressor including the muffler is shifted to the muffler side. In this case, since a moment acts in such a direction as to tilt the compressor toward the muffler, there is a possibility that abnormal vibration specific to the compressor may occur. Such vibration of the compressor causes an increase in low frequency noise and noise generated from each part of the housing.
　本発明は、上述のような課題を解決するためになされたもので、圧縮機に発生する振動を抑制することにより、装置各部から放射される低周波音及び騒音を低減することのできるヒートポンプ給湯室外機を提供することを目的とする。 The present invention has been made to solve the problems as described above, and is a heat pump water heater capable of reducing low frequency noise and noise radiated from each part of the apparatus by suppressing vibration generated in the compressor. It aims at providing an outdoor unit.
　本発明に係るヒートポンプ給湯室外機は、底板と、底板の上に配置された圧縮機と、圧縮機の外側面に固定されたマフラと、圧縮機の外側面に固定された内部熱交換器と、を備え、内部熱交換器は、圧縮機を挟んでマフラの反対側に配置されるように構成されているものである。 A heat pump water heater outdoor unit according to the present invention comprises a bottom plate, a compressor disposed on the bottom plate, a muffler fixed to the outer surface of the compressor, and an internal heat exchanger fixed to the outer surface of the compressor. , And the internal heat exchanger is configured to be disposed on the opposite side of the muffler across the compressor.
　本発明のヒートポンプ給湯室外機によれば、内部熱交換器とマフラは圧縮機に固定される。この際、内部熱交換器は、圧縮機を挟んでマフラの反対側に配置される。このような構成によれば、内部熱交換器とマフラを含む圧縮機全体の重心を圧縮機の中心に近づけることができるので、圧縮機に発生する特異な異常振動が抑制される。これにより、装置各部から放射される低周波音及び騒音を低減することが可能となる。 According to the heat pump water heater outdoor unit of the present invention, the internal heat exchanger and the muffler are fixed to the compressor. At this time, the internal heat exchanger is disposed on the opposite side of the muffler across the compressor. According to such a configuration, the center of gravity of the entire compressor including the internal heat exchanger and the muffler can be brought close to the center of the compressor, so that the abnormal abnormal vibration generated in the compressor is suppressed. This makes it possible to reduce the low frequency noise and noise emitted from each part of the device.
実施の形態１のヒートポンプ給湯室外機１の内部構造を示す前面図である。FIG. 2 is a front view showing the internal structure of the heat pump water heater outdoor unit 1 of the first embodiment. 実施の形態１のヒートポンプ給湯室外機１を斜め前から見た外観斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS It is the external appearance perspective view which looked at the heat pump hot water supply outdoor apparatus 1 of Embodiment 1 from diagonally front. 実施の形態１のヒートポンプ給湯室外機１を斜め後ろから見た外観斜視図である。BRIEF DESCRIPTION OF THE DRAWINGS It is the external appearance perspective view which looked at the heat pump hot water supply outdoor unit 1 of Embodiment 1 from diagonally back. 実施の形態１のヒートポンプ給湯室外機１を備えたヒートポンプ給湯システムの冷媒回路及び水回路を示す図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the refrigerant circuit and water circuit of a heat pump hot water supply system provided with the heat pump hot water supply outdoor apparatus 1 of Embodiment 1. FIG. 図１に示す圧縮機の周辺の構成を前面側から見た拡大図である。It is the enlarged view which looked at the structure of the periphery of the compressor shown in FIG. 1 from the front side. 図５に示す圧縮機の周辺の構成をＡ方向から見た図である。It is the figure which looked at the peripheral structure of the compressor shown in FIG. 5 from the A direction. 図５に示す圧縮機の周辺の構成をＢ方向から見た図である。It is the figure which looked at the structure of the periphery of the compressor shown in FIG. 5 from the B direction. 実施の形態２のヒートポンプ給湯室外機１の内部構造を示す前面図である。FIG. 13 is a front view showing an internal structure of the heat pump water heater outdoor unit 1 of the second embodiment. 図１に示す圧縮機の周辺の構成を前面側から見た拡大図である。It is the enlarged view which looked at the structure of the periphery of the compressor shown in FIG. 1 from the front side. 図９に示す圧縮機の周辺の構成をＣ方向から見た図である。It is the figure which looked at the structure of the periphery of the compressor shown in FIG. 9 from C direction. 図９に示す圧縮機の周辺の構成をＤ方向から見た図である。It is the figure which looked at the structure of the periphery of the compressor shown in FIG. 9 from the D direction.
　以下、図面を参照して実施の形態について説明する。各図において共通する要素には、同一の符号を付して、重複する説明を簡略化または省略する。また、本開示は、以下の各実施の形態で説明する構成のうち、組み合わせ可能な構成のあらゆる組み合わせを含み得る。 Hereinafter, embodiments will be described with reference to the drawings. Elements common to the respective drawings are denoted by the same reference numerals, and overlapping descriptions will be simplified or omitted. In addition, the present disclosure can include any combination of configurations that can be combined among the configurations described in each of the following embodiments.
実施の形態１．
　図１は、実施の形態１のヒートポンプ給湯室外機１の内部構造を示す前面図である。図２は、実施の形態１のヒートポンプ給湯室外機１を斜め前から見た外観斜視図である。図３は、実施の形態１のヒートポンプ給湯室外機１を斜め後ろから見た外観斜視図である。図４は、実施の形態１のヒートポンプ給湯室外機１を備えたヒートポンプ給湯システムの冷媒回路及び水回路を示す図である。 Embodiment 1
FIG. 1 is a front view showing the internal structure of the heat pump water heater outdoor unit 1 of the first embodiment. FIG. 2 is an external perspective view of the heat pump water heater outdoor unit 1 according to the first embodiment as viewed obliquely from the front. FIG. 3 is an external perspective view of the heat pump water heater outdoor unit 1 according to the first embodiment as viewed obliquely from behind. FIG. 4 is a diagram showing a refrigerant circuit and a water circuit of a heat pump water heater system including the heat pump water heater outdoor unit 1 according to the first embodiment.
　本実施の形態のヒートポンプ給湯室外機１は、室外に設置される。ヒートポンプ給湯室外機１は、液状の熱媒体を加熱する。本実施の形態での熱媒体は、水である。ヒートポンプ給湯室外機１は、水を加熱して湯を生成する。本発明における熱媒体は、例えば塩化カルシウム水溶液、エチレングリコール水溶液、アルコール、などの、水以外のブラインでもよい。 The heat pump water heater outdoor unit 1 of the present embodiment is installed outdoors. The heat pump water heater outdoor unit 1 heats a liquid heat medium. The heat medium in the present embodiment is water. The heat pump water heater outdoor unit 1 heats water to generate hot water. The heat medium in the present invention may be a brine other than water, such as an aqueous solution of calcium chloride, an aqueous solution of ethylene glycol, an alcohol and the like.
　図１に示すように、ヒートポンプ給湯室外機１は、筐体の底部を形成する底板としてのベース１７を備える。ベース１７上には、前方から見て、右側に機械室１４が形成され、左側に送風機室１５が形成されている。機械室１４と送風機室１５とは、鉛直方向に延在する仕切板１６により隔てられている。 As shown in FIG. 1, the heat pump water heater outdoor unit 1 is provided with a base 17 as a bottom plate that forms the bottom of the housing. A machine room 14 is formed on the right side on the base 17 as viewed from the front, and a fan room 15 is formed on the left side. The machine room 14 and the fan room 15 are separated by a partition plate 16 extending in the vertical direction.
　図２及び図３に示すように、ヒートポンプ給湯室外機１の外郭を形成する筐体は、フロントパネル１８と、サイドパネル１９と、トップパネル２０とを更に備える。フロントパネル１８は、ヒートポンプ給湯室外機１の前面を覆う前面部１８ａと左側面を覆う左側面部１８ｂとにより構成される。サイドパネル１９は、ヒートポンプ給湯室外機１の後面の一部を覆う後面部１９ａと右側面を覆う右側面部１９ｂとにより構成される。筐体のこれらの構成要素は、例えば板金材から成形される。ヒートポンプ給湯室外機１の外面は、後面側に配置された空気冷媒熱交換器７を除いて、この筐体によって覆われている。フロントパネル１８には、送風機室１５を通った空気を排出するための開口が形成され、この開口には格子１８ｃが取り付けられている。なお、図１は、ベース１７以外の筐体の各部を取り外した状態を示している。また、図１では、一部の構成機器の図示を省略している。 As shown in FIGS. 2 and 3, the casing forming the outer shell of the heat pump water heater outdoor unit 1 further includes a front panel 18, a side panel 19, and a top panel 20. The front panel 18 is configured of a front surface portion 18 a covering the front surface of the heat pump water heater outdoor unit 1 and a left side surface portion 18 b covering the left side surface. The side panel 19 is configured by a rear surface 19a that covers a part of the rear surface of the heat pump water heater outdoor unit 1 and a right side 19b that covers the right side. These components of the housing are, for example, molded from sheet metal. The outer surface of the heat pump water heater outdoor unit 1 is covered by this casing except for the air refrigerant heat exchanger 7 disposed on the rear side. The front panel 18 is formed with an opening for discharging the air that has passed through the fan chamber 15, and a grid 18c is attached to the opening. In addition, FIG. 1 has shown the state which removed each part of the housing | casing other than the base 17. FIG. Further, in FIG. 1, illustration of some component devices is omitted.
　図１に示すように、機械室１４内には、冷媒回路部品として、冷媒を圧縮するための圧縮機２、吸入冷媒の脈動を抑えるためのマフラ２ｂ、高圧冷媒と低圧冷媒との間で熱交換を行うための内部熱交換器１１、冷媒を減圧するための膨張弁１０（図示省略）、これらを接続する吸入管５及び吐出管４等の冷媒管などが組み込まれている。 As shown in FIG. 1, in the machine chamber 14, as a refrigerant circuit component, a compressor 2 for compressing the refrigerant, a muffler 2b for suppressing pulsation of the drawn refrigerant, heat between the high pressure refrigerant and the low pressure refrigerant An internal heat exchanger 11 for replacement, an expansion valve 10 (not shown) for decompressing the refrigerant, and refrigerant pipes such as a suction pipe 5 and a discharge pipe 4 connecting these are incorporated.
　圧縮機２は、円筒形のシェル２ａを備える。圧縮機２は、シェル２ａの内部にある圧縮部（図示省略）及びモータ（図示省略）を備える。圧縮部は、冷媒の圧縮動作を行う。圧縮部は、例えば、レシプロ式、スクロール式、ロータリー式などのいずれでもよい。モータは、圧縮部を駆動する。外部から供給される電力により圧縮機のモータが駆動される。吸入管５を通って冷媒が圧縮機２に吸入される。圧縮機２の内部で圧縮された冷媒を吐出する吐出管４が圧縮機２の上部に接続されている。圧縮機２の設置構造については詳細を後述する。 The compressor 2 includes a cylindrical shell 2a. The compressor 2 includes a compression unit (not shown) and a motor (not shown) inside the shell 2a. The compression unit compresses the refrigerant. The compression unit may be, for example, any of a reciprocating type, a scroll type, and a rotary type. The motor drives the compression unit. Electric power supplied from the outside drives the motor of the compressor. The refrigerant is sucked into the compressor 2 through the suction pipe 5. A discharge pipe 4 for discharging the refrigerant compressed inside the compressor 2 is connected to an upper portion of the compressor 2. The installation structure of the compressor 2 will be described in detail later.
　マフラ２ｂは、圧縮機２のシェル２ａの側面にマフラホルダ２ｄを介して連結されている。マフラ２ｂの設置構造については詳細を後述する。マフラ２ｂの外形は、圧縮機２のシェル２ａと同様に円筒形状でもよい。マフラ２ｂは吸入管５の途中に接続されている。低圧冷媒ガスは、吸入管５及びマフラ２ｂを通って圧縮機２に吸入される。圧縮機２で圧縮された高圧冷媒ガスは吐出管４へ吐出される。 The muffler 2 b is connected to the side surface of the shell 2 a of the compressor 2 via a muffler holder 2 d. The installation structure of the muffler 2b will be described in detail later. The outer shape of the muffler 2b may be cylindrical like the shell 2a of the compressor 2. The muffler 2 b is connected to the middle of the suction pipe 5. The low pressure refrigerant gas is sucked into the compressor 2 through the suction pipe 5 and the muffler 2b. The high pressure refrigerant gas compressed by the compressor 2 is discharged to the discharge pipe 4.
　内部熱交換器１１は、長い高圧冷媒配管と長い低圧冷媒配管が密着した状態で、矩形形状に曲げ成形されている。内部熱交換器１１内では、高圧冷媒配管内の冷媒と低圧冷媒配管内の冷媒との間で熱を交換する。これにより、内部熱交換器１１内では、低圧冷媒が加熱される。図１に示すように、機械室１４は上下方向に長い空間として構成されている。このため、内部熱交換器１１は、矩形の長手方向が機械室１４の上下方向となる向きで圧縮機２のシェル２ａの側面に内部熱交換器ホルダ２ｅを介して連結されている。なお、内部熱交換器１１の設置構造については詳細を後述する。 The internal heat exchanger 11 is bent and formed into a rectangular shape in a state in which a long high pressure refrigerant pipe and a long low pressure refrigerant pipe are in close contact with each other. In the internal heat exchanger 11, heat is exchanged between the refrigerant in the high pressure refrigerant pipe and the refrigerant in the low pressure refrigerant pipe. Thereby, in the internal heat exchanger 11, the low pressure refrigerant is heated. As shown in FIG. 1, the machine room 14 is configured as a space that is long in the vertical direction. For this reason, the internal heat exchanger 11 is connected to the side surface of the shell 2a of the compressor 2 via the internal heat exchanger holder 2e such that the longitudinal direction of the rectangle is the vertical direction of the machine chamber 14. The installation structure of the internal heat exchanger 11 will be described in detail later.
　膨張弁１０は、その本体の外側面にコイル組み込み部材が取り付けられている。コイルに外部から通電することにより、内部の流路抵抗調節部を稼動させて冷媒の流路抵抗を調節する。膨張弁１０により、その上流側の高圧冷媒の圧力と、その下流側の低圧冷媒の圧力とを調節できる。 In the expansion valve 10, a coil incorporating member is attached to the outer side surface of its main body. By energizing the coil from the outside, the internal flow path resistance adjustment unit is operated to adjust the flow path resistance of the refrigerant. The expansion valve 10 can adjust the pressure of the high pressure refrigerant on the upstream side thereof and the pressure of the low pressure refrigerant on the downstream side thereof.
　送風機室１５は、風路を確保するため、機械室１４より大きな空間を有する。送風機室１５内には、送風機６が組み込まれている。送風機６は、２枚から３枚のプロペラ翼とプロペラ翼を回転駆動させるモータとを備える。外部から供給される電力によりモータ及びプロペラ翼が回転する。送風機室１５の後面側には、送風機６に対向して、第一熱交換器としての空気冷媒熱交換器７が設置されている。空気冷媒熱交換器７は、多数のアルミ薄板のフィンと、アルミ薄板のフィンに多数密着して数回往復する長い冷媒管とを備える。空気冷媒熱交換器７は、Ｌ字状に曲がった平板状の外形を有する。空気冷媒熱交換器７は、ヒートポンプ給湯室外機１の後面から左側面にかけて設置されている。空気冷媒熱交換器７の後面側の端部は、機械室１４の後側まで延びている。このため、仕切板１６は、Ｌ字状に曲がった平板状の外形を有し、ヒートポンプ給湯室外機１の前面から空気冷媒熱交換器７の後面側の端部までの空間を仕切るように設置される。空気冷媒熱交換器７では、冷媒管内の冷媒とフィン周辺の空気との間で熱を交換する。送風機６により各フィン間を流れて通過する空気の風量が増やされて調節され、熱交換の量が増やされて調節されている。 The fan room 15 has a larger space than the machine room 14 in order to secure an air path. The blower 6 is incorporated in the blower chamber 15. The blower 6 includes two to three propeller blades and a motor that rotationally drives the propeller blades. The electric power supplied from the outside rotates the motor and propeller blades. An air refrigerant heat exchanger 7 as a first heat exchanger is installed on the rear surface side of the fan chamber 15 so as to face the fan 6. The air refrigerant heat exchanger 7 includes a large number of aluminum thin plate fins and a long refrigerant pipe closely contacting the aluminum thin plate fins and reciprocating several times. The air refrigerant heat exchanger 7 has a flat plate-like outer shape bent in an L-shape. The air refrigerant heat exchanger 7 is installed from the rear surface to the left surface of the heat pump water heater outdoor unit 1. The rear end of the air refrigerant heat exchanger 7 extends to the rear of the machine chamber 14. For this reason, the partition plate 16 has a flat plate-like outer shape bent in an L shape, and is installed to partition a space from the front surface of the heat pump water heater outdoor unit 1 to the end on the rear surface side of the air refrigerant heat exchanger 7 Be done. In the air refrigerant heat exchanger 7, heat is exchanged between the refrigerant in the refrigerant pipe and the air around the fins. The air flow of the air flowing between the fins is increased by the blower 6 and adjusted, and the amount of heat exchange is increased and adjusted.
　送風機室１５の下部のベース１７の上に、水冷媒熱交換器８が設置されている。水冷媒熱交換器８は、断熱材に覆われた状態で、直方体形状の収納容器１２に収納されて設置されている。水冷媒熱交換器８は、長い水管と長い冷媒管とが密着した状態で、収納容器１２に収納可能となるように曲げ成形されている。水冷媒熱交換器８内では、冷媒管内の冷媒と、水管内の水すなわち熱媒体との間で熱を交換する。水冷媒熱交換器８内では、水すなわち熱媒体が加熱される。水冷媒熱交換器８の上方に送風機６が配置されている。 The water-refrigerant heat exchanger 8 is installed on the base 17 in the lower part of the fan room 15. The water-refrigerant heat exchanger 8 is housed and installed in a rectangular parallelepiped storage container 12 in a state of being covered by a heat insulating material. The water-refrigerant heat exchanger 8 is bent and formed so that it can be stored in the storage container 12 in a state where the long water pipe and the long refrigerant pipe are in close contact with each other. In the water refrigerant heat exchanger 8, heat is exchanged between the refrigerant in the refrigerant pipe and the water in the water pipe, that is, the heat medium. In the water refrigerant heat exchanger 8, the water, ie, the heat medium is heated. A blower 6 is disposed above the water refrigerant heat exchanger 8.
　圧縮機２出口部は、吐出管４を介して、水冷媒熱交換器８の冷媒入口部に接続されている。水冷媒熱交換器８の冷媒出口部は、冷媒管を介して、機械室１４内の内部熱交換器１１の高圧冷媒入口部に接続されている。内部熱交換器１１の高圧冷媒出口部は、冷媒管を介して、機械室１４内の膨張弁１０の入口部に接続されている。膨張弁１０の出口部は、冷媒管を介して、空気冷媒熱交換器７の冷媒入口部に接続されている。空気冷媒熱交換器７の冷媒出口部は、冷媒管を介して、内部熱交換器１１の低圧冷媒入口部に接続されている。内部熱交換器１１の低圧冷媒出口部は、吸入管５を介して、圧縮機２の入口部に接続されている。各冷媒管の途中には、その他の冷媒回路部品が取り付けられていてもよい。 The compressor 2 outlet portion is connected to the refrigerant inlet portion of the water-refrigerant heat exchanger 8 via the discharge pipe 4. The refrigerant outlet of the water refrigerant heat exchanger 8 is connected to the high pressure refrigerant inlet of the internal heat exchanger 11 in the machine chamber 14 via a refrigerant pipe. The high pressure refrigerant outlet of the internal heat exchanger 11 is connected to the inlet of the expansion valve 10 in the machine chamber 14 via a refrigerant pipe. The outlet of the expansion valve 10 is connected to the refrigerant inlet of the air refrigerant heat exchanger 7 via a refrigerant pipe. The refrigerant outlet of the air refrigerant heat exchanger 7 is connected to the low pressure refrigerant inlet of the internal heat exchanger 11 via a refrigerant pipe. The low pressure refrigerant outlet of the internal heat exchanger 11 is connected to the inlet of the compressor 2 via the suction pipe 5. Other refrigerant circuit components may be attached to the middle of each refrigerant pipe.
　機械室１４の上部には、電気品収納箱９が設置されている。電気品収納箱９には、電子基板２４が収納されている。電子基板２４には、圧縮機２、膨張弁１０、送風機６等を駆動制御する各モジュールを構成する電子部品及び電気部品等が取り付けられている。各モジュールは、例えば以下のように制御する。圧縮機２のモータの回転数を数十ｒｐｓ（Ｈｚ）～百ｒｐｓ（Ｈｚ）程度の回転数に変化させる。膨張弁１０の開度を変化させる。送風機６の回転数を数百ｒｐｍ～千ｒｐｍ程度の回転数に変化させる。電気品収納箱９には、外部電気配線を接続する端子台９ａが設けられている。図２及び図３に示すように、右側面部１９ｂには、端子台９ａと、後述する水入口バルブ２８及び湯出口バルブ２９とを保護するためのサービスパネル２７が取り付けられている。 In the upper part of the machine room 14, an electrical component storage box 9 is installed. An electronic substrate 24 is accommodated in the electrical component storage box 9. Electronic parts, electric parts and the like that constitute modules that drive and control the compressor 2, the expansion valve 10, the blower 6 and the like are attached to the electronic substrate 24. Each module is controlled, for example, as follows. The rotation speed of the motor of the compressor 2 is changed to a rotation speed of several tens rps (Hz) to one hundred rps (Hz). The opening degree of the expansion valve 10 is changed. The rotational speed of the blower 6 is changed to a rotational speed of about several hundred rpm to about 1,000 rpm. The electrical component storage box 9 is provided with a terminal block 9a for connecting external electrical wiring. As shown in FIGS. 2 and 3, a service panel 27 for protecting the terminal block 9a and a water inlet valve 28 and a hot water outlet valve 29 described later is attached to the right side surface 19b.
　ヒートポンプ給湯室外機１が備える冷媒回路の密閉空間内には、冷媒が封入されている。冷媒は、例えば、ＣＯ２冷媒でもよい。 The refrigerant is sealed in the sealed space of the refrigerant circuit provided in the heat pump water heater outdoor unit 1. The refrigerant may be, for example, a CO 2 refrigerant.
　次に、ヒートポンプ給湯室外機１及び貯湯装置３３の水回路について説明する。図１に示すように、機械室１４内には、内部管３０、及び内部管３１を含む水回路部品が組み込まれている。ベース１７の右側部には、水入口バルブ２８が下側、湯出口バルブ２９が上側になるように両者が併設されている。内部管３０は、水入口バルブ２８と、水冷媒熱交換器８の水入口部との間を接続している。内部管３１は、水冷媒熱交換器８の湯出口部と湯出口バルブ２９との間を接続している。 Next, the water circuit of the heat pump water heater outdoor unit 1 and the hot water storage device 33 will be described. As shown in FIG. 1, in the machine room 14, water circuit components including an inner pipe 30 and an inner pipe 31 are incorporated. On the right side of the base 17, both are juxtaposed so that the water inlet valve 28 is on the lower side and the hot water outlet valve 29 is on the upper side. The inner pipe 30 connects between the water inlet valve 28 and the water inlet of the water refrigerant heat exchanger 8. The internal pipe 31 connects between the hot water outlet of the water refrigerant heat exchanger 8 and the hot water outlet valve 29.
　図４に示すように、ヒートポンプ給湯室外機１及び貯湯装置３３により、ヒートポンプ給湯システムが構成される。貯湯装置３３は、例えば数百リットル程度の容量を有する貯湯タンク３４と、貯湯タンク３４内の水をヒートポンプ給湯室外機１に送るための水ポンプ３５とを備える。ヒートポンプ給湯室外機１と貯湯装置３３との間は、外部管３６と、外部管３７と、電気配線（図示省略）とを介して接続される。 As shown in FIG. 4, a heat pump hot water supply system is configured by the heat pump hot water supply outdoor unit 1 and the hot water storage device 33. The hot water storage apparatus 33 includes, for example, a hot water storage tank 34 having a capacity of about several hundred liters, and a water pump 35 for sending the water in the hot water storage tank 34 to the heat pump water heater outdoor unit 1. The heat pump water heater outdoor unit 1 and the hot water storage device 33 are connected via an external pipe 36, an external pipe 37, and an electrical wiring (not shown).
　貯湯タンク３４の下部は、管３８を介して、水ポンプ３５の入口に接続されている。外部管３６は、水ポンプ３５の出口と、ヒートポンプ給湯室外機１の水入口バルブ２８との間を接続している。外部管３７は、ヒートポンプ給湯室外機１の湯出口バルブ２９と、貯湯装置３３との間を接続している。外部管３７は、貯湯装置３３内の管３９を介して、貯湯タンク３４の上部に連通可能になっている。 The lower portion of the hot water storage tank 34 is connected to the inlet of the water pump 35 via a pipe 38. The external pipe 36 connects between the outlet of the water pump 35 and the water inlet valve 28 of the heat pump water heater outdoor unit 1. The external pipe 37 connects between the hot water outlet valve 29 of the heat pump water heater outdoor unit 1 and the hot water storage device 33. The external pipe 37 can communicate with the upper portion of the hot water storage tank 34 via the pipe 39 in the hot water storage device 33.
　貯湯装置３３は、混合弁４０を更に備えている。混合弁４０には、管３９から分岐した給湯管４１と、水道等の水源から供給される水が通る給水管４２と、ユーザ側に供給される湯が通る給湯管４３とがそれぞれ接続されている。混合弁４０は、給湯管４１から流入する湯すなわち高温水と、給水管４２から流入する水すなわち低温水との混合比を調整することで給湯温度を調節する。混合弁４０により混合された湯は、給湯管４３を通って、例えば、浴槽、シャワー、蛇口、食器洗い機などのユーザ側の端末に送られる。貯湯タンク３４の下部には、給水管４２から分岐した給水管４４が接続されている。貯湯タンク３４内の下側には、給水管４４から流入した水が貯留される。 The hot water storage device 33 further includes a mixing valve 40. A hot water supply pipe 41 branched from the pipe 39, a water supply pipe 42 through which water supplied from a water source such as a water pipe passes, and a hot water supply pipe 43 through which hot water supplied to the user passes are connected to the mixing valve 40 There is. The mixing valve 40 regulates the hot water supply temperature by adjusting the mixing ratio of hot water, ie, high temperature water flowing in from the hot water supply pipe 41, and water, ie, low temperature water flowing in from the water supply pipe. The hot water mixed by the mixing valve 40 is sent through the hot water supply pipe 43 to a user-side terminal such as a bath, a shower, a faucet, and a dishwasher. The water supply pipe 44 branched from the water supply pipe 42 is connected to the lower part of the hot water storage tank 34. The water flowing in from the water supply pipe 44 is stored at the lower side in the hot water storage tank 34.
　次に、蓄熱運転におけるヒートポンプ給湯室外機１の動作について説明する。蓄熱運転は、ヒートポンプ給湯室外機１で加熱された湯を貯湯装置３３へ送ることで貯湯タンク３４内に湯を蓄積する運転である。蓄熱運転では、以下のようになる。圧縮機２、送風機６及び水ポンプ３５が運転される。圧縮機２のモータの回転速度は、数十ｒｐｓ（Ｈｚ）～百ｒｐｓ（Ｈｚ）程度の範囲で変化できる。これにより、冷媒の流量を変化させることで、加熱能力を調節制御できる。 Next, the operation of the heat pump water heater outdoor unit 1 in the heat storage operation will be described. The heat storage operation is an operation of accumulating the hot water in the hot water storage tank 34 by sending the hot water heated by the heat pump water heater outdoor unit 1 to the hot water storage device 33. In the heat storage operation, it is as follows. The compressor 2, the blower 6 and the water pump 35 are operated. The rotational speed of the motor of the compressor 2 can be varied in the range of several tens rps (Hz) to hundreds rps (Hz). Thus, the heating capacity can be adjusted and controlled by changing the flow rate of the refrigerant.
　送風機６のモータの回転速度は数百ｒｐｍ～千ｒｐｍ程度に変化し、空気冷媒熱交換器７を通過する空気の流量を変化させることで、空気冷媒熱交換器７での冷媒と空気の熱交換量を調節制御できる。空気は、送風機６の後方に設置された空気冷媒熱交換器７の後方から吸い込まれ、空気冷媒熱交換器７を通過し、送風機室１５を通過し、空気冷媒熱交換器７と反対側のフロントパネル１８の前方へ排出される。 The rotational speed of the motor of the blower 6 changes to about several hundred rpm to about 1,000 rpm, and the flow rate of the air passing through the air refrigerant heat exchanger 7 is changed to change the heat of the refrigerant and air in the air refrigerant heat exchanger 7 Control the exchange amount. The air is sucked from the rear of the air refrigerant heat exchanger 7 installed behind the blower 6, passes through the air refrigerant heat exchanger 7, passes through the blower chamber 15, and is opposite to the air refrigerant heat exchanger 7. It is discharged to the front of the front panel 18.
　膨張弁１０は、冷媒の流路抵抗度を調節する。これにより、膨張弁１０の上流側の高圧冷媒及び下流側の低圧冷媒の圧力を調節制御できる。圧縮機２の回転速度、送風機６の回転速度、膨張弁１０の流路抵抗度は、ヒートポンプ給湯室外機１の設置環境及び使用条件などに応じて制御される。 The expansion valve 10 adjusts the flow path resistance of the refrigerant. Thereby, the pressure of the high pressure refrigerant on the upstream side of the expansion valve 10 and the pressure of the low pressure refrigerant on the downstream side can be adjusted and controlled. The rotational speed of the compressor 2, the rotational speed of the blower 6, and the flow path resistance of the expansion valve 10 are controlled in accordance with the installation environment and use conditions of the heat pump water heater outdoor unit 1.
　低圧冷媒は吸入管５及びマフラ２ｂを通って圧縮機２へ吸入される。マフラ２ｂは圧縮機２内に吸入される冷媒の脈動音を消音する。低圧冷媒は圧縮機２内の圧縮部で圧縮され、高温高圧冷媒になる。この高温高圧冷媒が圧縮機２から吐出管４へ吐出される。高温高圧冷媒は、吐出管４を通り、水冷媒熱交換器８の冷媒入口部に流入する。高温高圧冷媒は、水冷媒熱交換器８で水と熱交換することで水を加熱し湯を生成させる。冷媒は、水冷媒熱交換器８を通過する間にエンタルピを低下させ、温度を低下させる。この温度低下した高圧冷媒は、水冷媒熱交換器８の冷媒出口部から、冷媒管を通り、内部熱交換器１１の高圧冷媒入口部に流入する。高圧冷媒は、内部熱交換器１１で低圧冷媒と熱交換し、エンタルピを低下させることで温度を更に低下させる。この温度低下した高圧冷媒は、内部熱交換器１１の高圧冷媒出口部から、冷媒管を通り、膨張弁１０の入口部に流入する。この高圧冷媒は、膨張弁１０で減圧されることで温度降下し、低温低圧冷媒となる。この低温低圧冷媒は、膨張弁１０の出口部から、冷媒管を通り、空気冷媒熱交換器７の入口部に流入する。低温低圧冷媒は、空気冷媒熱交換器７で空気と熱交換し、エンタルピを増加させ、空気冷媒熱交換器７の出口部から冷媒管に流入し、内部熱交換器１１の低圧冷媒入口部に流入する。低圧冷媒は、内部熱交換器１１で高圧冷媒と熱交換し、エンタルピを増加させる。内部熱交換器１１の出口部から吸入管５に流入した低圧冷媒は、圧縮機２に吸入される。このように冷媒が循環してヒートポンプサイクルが行われる。 The low pressure refrigerant is sucked into the compressor 2 through the suction pipe 5 and the muffler 2b. The muffler 2 b eliminates the pulsating noise of the refrigerant drawn into the compressor 2. The low pressure refrigerant is compressed in the compression section in the compressor 2 to become a high temperature high pressure refrigerant. The high temperature and high pressure refrigerant is discharged from the compressor 2 to the discharge pipe 4. The high temperature and high pressure refrigerant flows into the refrigerant inlet portion of the water refrigerant heat exchanger 8 through the discharge pipe 4. The high-temperature and high-pressure refrigerant exchanges heat with water in the water refrigerant heat exchanger 8 to heat the water and generate hot water. The refrigerant lowers the enthalpy while passing through the water refrigerant heat exchanger 8 to lower the temperature. The high temperature refrigerant whose temperature has been lowered flows from the refrigerant outlet of the water refrigerant heat exchanger 8 through the refrigerant pipe into the high pressure refrigerant inlet of the internal heat exchanger 11. The high-pressure refrigerant exchanges heat with the low-pressure refrigerant in the internal heat exchanger 11 to further reduce the temperature by lowering the enthalpy. The high-pressure refrigerant whose temperature has been lowered flows from the high-pressure refrigerant outlet of the internal heat exchanger 11 through the refrigerant pipe into the inlet of the expansion valve 10. The high-pressure refrigerant is reduced in temperature by the expansion valve 10 to reduce its temperature, and becomes a low-temperature low-pressure refrigerant. The low-temperature low-pressure refrigerant flows from the outlet of the expansion valve 10 through the refrigerant pipe to the inlet of the air-refrigerant heat exchanger 7. The low temperature low pressure refrigerant exchanges heat with air in the air refrigerant heat exchanger 7 to increase enthalpy, and flows into the refrigerant pipe from the outlet of the air refrigerant heat exchanger 7 to the low pressure refrigerant inlet of the internal heat exchanger 11 To flow. The low pressure refrigerant exchanges heat with the high pressure refrigerant in the internal heat exchanger 11 to increase enthalpy. The low-pressure refrigerant flowing into the suction pipe 5 from the outlet of the internal heat exchanger 11 is drawn into the compressor 2. Thus, the refrigerant circulates to perform the heat pump cycle.
　同時に、水ポンプ３５の駆動により、貯湯タンク３４内の下部の水が、管３８、外部管３６、水入口バルブ２８及び内部管３０を通って、水冷媒熱交換器８の水入口部に流入する。この水が水冷媒熱交換器８で冷媒と熱交換し加熱されて湯が生成する。この湯は、内部管３１、湯出口バルブ２９、外部管３７及び管３９を通り、貯湯タンク３４の上部に流入する。このような蓄熱運転を行うことで、貯湯タンク３４内に上部から下部に向かって高温の湯が蓄積していく。 At the same time, the lower part of the hot water storage tank 34 flows into the water inlet of the water refrigerant heat exchanger 8 through the pipe 38, the outer pipe 36, the water inlet valve 28 and the inner pipe 30 by driving the water pump 35. Do. This water exchanges heat with the refrigerant in the water refrigerant heat exchanger 8 and is heated to generate hot water. The hot water flows into the upper portion of the hot water storage tank 34 through the inner pipe 31, the hot water outlet valve 29, the outer pipe 37 and the pipe 39. By performing such a heat storage operation, high temperature hot water accumulates in the hot water storage tank 34 from the top toward the bottom.
　なお、ヒートポンプ給湯室外機１で加熱された湯を貯湯タンク３４に溜めることなくユーザ側に直接供給しても良い。また、ヒートポンプ給湯室外機１で加熱された熱媒体を暖房等に利用しても良い。 The hot water heated by the heat pump water heater outdoor unit 1 may be supplied directly to the user without being stored in the hot water storage tank 34. Further, the heat medium heated by the heat pump water heater outdoor unit 1 may be used for heating or the like.
　本実施の形態であれば、内部熱交換器１１を備えたことで、以下の効果が得られる。水冷媒熱交換器８を通過した高圧冷媒から空気冷媒熱交換器７を通過した低圧冷媒への熱交換を行うことができる。これにより、ヒートポンプサイクルの熱効率を高めることができる。 In the present embodiment, the following effects can be obtained by providing the internal heat exchanger 11. Heat exchange can be performed from the high pressure refrigerant that has passed through the water refrigerant heat exchanger 8 to the low pressure refrigerant that has passed through the air refrigerant heat exchanger 7. Thereby, the heat efficiency of a heat pump cycle can be raised.
［実施の形態１のヒートポンプ給湯室外機の特徴］
　次に、図５から図７を参照して、実施の形態１のヒートポンプ給湯室外機１の特徴的な構成について説明する。実施の形態１のヒートポンプ給湯室外機１は、圧縮機２、マフラ２ｂ及び内部熱交換器１１の設置構造に特徴を有している。図５は、図１に示す圧縮機の周辺の構成を前面側から見た拡大図である。また、図６は、図５に示す圧縮機の周辺の構成をＡ方向から見た図である。さらに、図７は、図５に示す圧縮機の周辺の構成をＢ方向から見た図である。以下、これらの図を参照して、圧縮機２、マフラ２ｂ及び内部熱交換器１１の設置構造についてそれぞれ説明する。 [Features of the heat pump water heater outdoor unit of the first embodiment]
Next, the characteristic configuration of the heat pump water heater outdoor unit 1 of the first embodiment will be described with reference to FIGS. 5 to 7. The heat pump water heater outdoor unit 1 of Embodiment 1 is characterized by the installation structure of the compressor 2, the muffler 2 b and the internal heat exchanger 11. FIG. 5 is an enlarged view of the peripheral configuration of the compressor shown in FIG. 1 as viewed from the front side. Moreover, FIG. 6 is the figure which looked at the structure of the periphery of the compressor shown in FIG. 5 from the A direction. Furthermore, FIG. 7 is a view of the configuration around the compressor shown in FIG. 5 as viewed from the B direction. The installation structure of the compressor 2, the muffler 2b, and the internal heat exchanger 11 will be described below with reference to these figures.
（圧縮機の設置構造）
　先ず、圧縮機２の設置構造について説明する。圧縮機２のシェル２ａの底部には、脚部材２ｃが固定されている。圧縮機２は、脚部材２ｃを介して、ベース１７に搭載される。脚部材２ｃは、圧縮機２及びこれに固定される部品の重量を支えることのできる強度を有する。脚部材２ｃは、金属製が好ましい。実施の形態における脚部材２ｃは、三角形状の板部材である。また、脚部材２ｃは、後述する内部熱交換器１１に接触しないように配置される。脚部材２ｃは、上面視において、三角形状の一辺が後述する内部熱交換器１１と平行になる配置が好ましい。脚部材２ｃの上面は、圧縮機２のシェル２ａの底面に接合している。脚部材２ｃは、圧縮機２のシェル２ａに対して溶接されていてもよい。 (Installation structure of compressor)
First, the installation structure of the compressor 2 will be described. A leg member 2 c is fixed to the bottom of the shell 2 a of the compressor 2. The compressor 2 is mounted on the base 17 via the leg members 2c. The leg member 2c has a strength capable of supporting the weight of the compressor 2 and components fixed thereto. The leg member 2c is preferably made of metal. The leg member 2c in the embodiment is a triangular plate member. Moreover, the leg member 2c is arrange | positioned so that it may not contact the internal heat exchanger 11 mentioned later. The leg member 2c is preferably arranged such that one side of the triangle is parallel to the internal heat exchanger 11 described later in top view. The upper surface of the leg member 2 c is joined to the bottom surface of the shell 2 a of the compressor 2. The leg members 2 c may be welded to the shell 2 a of the compressor 2.
　ヒートポンプ給湯室外機１は、複数の防振マウント３を備える。防振マウントは、例えば、ゴム材又は金属スプリング材を用いて成形される。防振マウント３は、ベース１７の上面と脚部材２ｃの下面との間に配置される。防振マウント３は、三角形状の脚部材２ｃの３つの角部にそれぞれ配置される。防振マウント３の外形は円柱形状でもよい。圧縮機２は、防振マウント３を介在させてベース１７の上面に設置される。 The heat pump water heater outdoor unit 1 includes a plurality of vibration isolation mounts 3. The anti-vibration mount is molded using, for example, a rubber material or a metal spring material. The anti-vibration mount 3 is disposed between the upper surface of the base 17 and the lower surface of the leg member 2c. The anti-vibration mounts 3 are disposed at three corners of the triangular leg member 2c. The outer shape of the anti-vibration mount 3 may be cylindrical. The compressor 2 is installed on the upper surface of the base 17 with the anti-vibration mount 3 interposed.
　なお、ベース１７には、圧縮機２をベース１７に連結するための複数のピンが設置されていてもよい。例えば、３個のピンが上方へ向かって突出する場合、防振マウント３は、ピンを挿通可能な孔を有する円筒形状とされる。ピンは、防振マウント３の孔と、脚部材２ｃに設けられた孔とを挿通する。ピンは、図示しないボルトに螺合する。ベース１７と脚部材２ｃとの間に防振マウント３が挟まれることで、圧縮機２が防振マウント３を介してベース１７に連結される。 The base 17 may be provided with a plurality of pins for connecting the compressor 2 to the base 17. For example, when three pins project upward, the anti-vibration mount 3 has a cylindrical shape having a hole through which the pins can be inserted. The pin passes through the hole of the anti-vibration mount 3 and the hole provided in the leg member 2c. The pin is screwed into a bolt not shown. The compressor 2 is connected to the base 17 via the vibration isolation mount 3 by the vibration isolation mount 3 being sandwiched between the base 17 and the leg members 2 c.
（マフラの設置構造）
　次に、マフラ２ｂの設置構造について説明する。圧縮機２のシェル２ａの外側面にはマフラホルダ２ｄが接合される。マフラホルダ２ｄは、マフラ２ｂの重量を支えることのできる強度を有する。マフラホルダ２ｄは、金属製が好ましい。マフラホルダ２ｄは、圧縮機２の外側面に固定される固定胴部と、マフラ２ｂに固定される固定腕部と、を有している。固定胴部は、圧縮機２の側面の周方向に沿うように曲げ加工されている。固定腕部は、固定胴部の両端からマフラ２ｂを挟むように、圧縮機２のシェル２ａの径方向外側に向かって延びている。つまり、マフラホルダ２ｄは、板材をＭ字形状に曲げ加工した形状を有している。マフラホルダ２ｄの固定胴部は、例えば圧縮機２のシェル２ａの外側面に溶接される。そして、マフラ２ｂは、例えばマフラホルダ２ｄの固定腕部に溶接される。 (Installation structure of the muffler)
Next, the installation structure of the muffler 2b will be described. A muffler holder 2 d is joined to the outer surface of the shell 2 a of the compressor 2. The muffler holder 2d has a strength capable of supporting the weight of the muffler 2b. The muffler holder 2 d is preferably made of metal. The muffler holder 2 d has a fixed barrel fixed to the outer surface of the compressor 2 and a fixed arm fixed to the muffler 2 b. The fixed barrel is bent along the circumferential direction of the side surface of the compressor 2. The fixing arm extends radially outward of the shell 2a of the compressor 2 so as to sandwich the muffler 2b from both ends of the fixing barrel. That is, the muffler holder 2d has a shape obtained by bending a plate material into an M shape. The fixed barrel of the muffler holder 2 d is welded to the outer surface of the shell 2 a of the compressor 2, for example. Then, the muffler 2b is welded to, for example, a fixed arm of the muffler holder 2d.
（内部熱交換器の設置構造）
　次に、内部熱交換器１１の設置構造について説明する。圧縮機２のシェル２ａの外側面には内部熱交換器ホルダ２ｅが接合される。内部熱交換器ホルダ２ｅは、内部熱交換器１１の重量を支えることのできる強度を有する。内部熱交換器ホルダ２ｅは、金属製が好ましい。内部熱交換器ホルダ２ｅは、圧縮機２の外側面に固定される固定胴部と、内部熱交換器１１に固定される固定腕部と、を有している。固定胴部は、圧縮機２の側面に面する平面によって構成されている。固定腕部は、固定胴部の両端から直角方向に圧縮機２のシェル２ａの径方向外側に向かって直角に延びている。つまり、内部熱交換器ホルダ２ｅは、板材をＵ字形状に曲げ加工した形状を有している。内部熱交換器ホルダ２ｅの固定胴部は、例えば圧縮機２のシェル２ａの外側面に溶接される。この際、内部熱交換器ホルダ２ｅは、マフラホルダ２ｄから圧縮機２の外側面の周方向に沿って１８０°回転した位置に固定される。そして、内部熱交換器１１は、内部熱交換器ホルダ２ｅの固定腕部に固定される。このような配置によれば、内部熱交換器１１は、マフラ２ｂの側から見て圧縮機２の裏側となる位置、つまり圧縮機２を挟んでマフラ２ｂの反対側となる位置に固定される。 (Installation structure of internal heat exchanger)
Next, the installation structure of the internal heat exchanger 11 will be described. An internal heat exchanger holder 2 e is joined to the outer surface of the shell 2 a of the compressor 2. The internal heat exchanger holder 2 e has a strength capable of supporting the weight of the internal heat exchanger 11. The internal heat exchanger holder 2e is preferably made of metal. The internal heat exchanger holder 2 e has a fixed barrel fixed to the outer surface of the compressor 2 and a fixed arm fixed to the internal heat exchanger 11. The fixed barrel is constituted by a plane facing the side surface of the compressor 2. The fixed arms extend at right angles radially outward of the shell 2a of the compressor 2 from both ends of the fixed barrel in the perpendicular direction. That is, the internal heat exchanger holder 2e has a shape obtained by bending a plate material into a U-shape. The fixed body portion of the internal heat exchanger holder 2 e is welded, for example, to the outer surface of the shell 2 a of the compressor 2. At this time, the internal heat exchanger holder 2e is fixed at a position rotated 180 ° along the circumferential direction of the outer surface of the compressor 2 from the muffler holder 2d. And the internal heat exchanger 11 is fixed to the fixed arm of the internal heat exchanger holder 2e. According to such an arrangement, the internal heat exchanger 11 is fixed at a position on the back side of the compressor 2 when viewed from the side of the muffler 2 b, that is, at a position on the opposite side of the muffler 2 b with the compressor 2 interposed therebetween. .
　内部熱交換器１１は、長い高圧冷媒配管と長い低圧冷媒配管が密着した状態で、渦巻形状に曲げ成形されている。内部熱交換器１１は、高圧冷媒配管と低圧冷媒配管が密着して接合された接合配管でもよいし二重管でもよい。曲げ成形された配管は、金属製のバンド部材２１によって束ねて締め付けられている。 The internal heat exchanger 11 is bent and formed into a spiral shape in a state in which a long high pressure refrigerant pipe and a long low pressure refrigerant pipe are in close contact with each other. The internal heat exchanger 11 may be a joint pipe in which a high pressure refrigerant pipe and a low pressure refrigerant pipe are in close contact with each other, or may be a double pipe. The bent and formed pipes are bundled and tightened by a metal band member 21.
　図１に示すように、機械室１４は上下方向に長い空間として構成されている。このため、内部熱交換器１１は、矩形の長手方向が機械室１４の上下方向となる向きで内部熱交換器ホルダ２ｅの固定腕部に固定される。内部熱交換器１１の中心部には、内部熱交換器ホルダ２ｅの固定腕部を固定するための固定部が設けられている。内部熱交換器１１は、弾性部材１３を介在させた状態で内部熱交換器ホルダ２ｅの固定腕部に固定される。 As shown in FIG. 1, the machine room 14 is configured as a space that is long in the vertical direction. For this reason, the internal heat exchanger 11 is fixed to the fixed arm of the internal heat exchanger holder 2 e in a direction in which the longitudinal direction of the rectangle is the vertical direction of the machine chamber 14. At a central portion of the internal heat exchanger 11, a fixing portion for fixing a fixing arm of the internal heat exchanger holder 2e is provided. The internal heat exchanger 11 is fixed to the fixed arm of the internal heat exchanger holder 2 e with the elastic member 13 interposed.
　また、内部熱交換器１１及びマフラ２ｂは、上下方向の配置にも特徴を有している。すなわち、内部熱交換器１１及びマフラ２ｂは、それぞれの重心の高さが同じになる位置に固定されている。また、内部熱交換器１１の下端位置は、ベース１７の上面には接触せず且つ防振マウント３の上端位置よりも下方となる位置とされる。 Further, the internal heat exchanger 11 and the muffler 2b are also characterized in the arrangement in the vertical direction. That is, the internal heat exchanger 11 and the muffler 2b are fixed at positions where the heights of their respective centers of gravity become the same. Further, the lower end position of the internal heat exchanger 11 does not contact the upper surface of the base 17 and is located below the upper end position of the anti-vibration mount 3.
　上記構成を有するヒートポンプ給湯室外機１の機能について、その概要を説明する。 An outline of the function of the heat pump water heater outdoor unit 1 having the above configuration will be described.
　ヒートポンプ給湯室外機１の内部に配置された圧縮機２は、運転中に数十ｒｐｓ（Ｈｚ）から百ｒｐｓ（Ｈｚ）程度の周波数で駆動する。このため、圧縮機２には、この周波数の整数倍の周波数成分で大きな振動が発生する。発生した振動は、接続された吸入管５及び吐出管４を介して空気冷媒熱交換器７等の各種部品に伝達されることにより、筐体各部から低周波音及び騒音が発生する。特に、圧縮機２にはマフラ２ｂ及び内部熱交換器１１といった質量部品が固定されている。このため、圧縮機２には、これらの部品の質量によって重心がシェル２ａの中心軸からずれることにより、圧縮機２を傾ける方向のモーメントが作用する。このようなモーメントの作用によって圧縮機２に傾きが生じると、圧縮機２に特異的異常振動が発生する可能性がある。この場合、圧縮機２の振動が筐体全体から放射される低周波音及び騒音が抑制されないおそれがある。 The compressor 2 disposed inside the heat pump water heater outdoor unit 1 is driven at a frequency of several tens rps (Hz) to approximately one hundred rps (Hz) during operation. For this reason, in the compressor 2, large vibrations occur at frequency components that are integral multiples of this frequency. The generated vibration is transmitted to various components such as the air refrigerant heat exchanger 7 via the connected suction pipe 5 and discharge pipe 4 so that low frequency noise and noise are generated from each part of the housing. In particular, mass components such as the muffler 2 b and the internal heat exchanger 11 are fixed to the compressor 2. For this reason, a moment in the direction in which the compressor 2 is inclined acts on the compressor 2 as the center of gravity is shifted from the central axis of the shell 2a by the mass of these parts. When the compressor 2 is inclined due to the action of such a moment, a specific abnormal vibration may occur in the compressor 2. In this case, there is a possibility that the vibration of the compressor 2 may not suppress low frequency noise and noise radiated from the entire housing.
　ここで、実施の形態１のヒートポンプ給湯室外機１は、内部熱交換器１１が圧縮機２を挟んでマフラ２ｂの反対側に固定されている。このような構成によれば、内部熱交換器１１及びマフラ２ｂを含む圧縮機２全体の重心がシェル２ａの中心軸に近づくため、圧縮機に作用するモーメントが低減される。これにより、圧縮機２の傾きによる異常振動の発生を抑制することができるので、低周波音及び騒音の発生が抑制される。 Here, in the heat pump water heater outdoor unit 1 of the first embodiment, the internal heat exchanger 11 is fixed to the opposite side of the muffler 2 b with the compressor 2 interposed therebetween. According to such a configuration, the center of gravity of the entire compressor 2 including the internal heat exchanger 11 and the muffler 2b approaches the central axis of the shell 2a, so the moment acting on the compressor is reduced. As a result, since the occurrence of abnormal vibration due to the inclination of the compressor 2 can be suppressed, the occurrence of low frequency noise and noise is suppressed.
　また、内部熱交換器１１の重心の高さとマフラ２ｂの重心の高さとが大きく異なると、圧縮機２が傾いた場合のモーメントの変化が顕著となる。この点、実施の形態１のヒートポンプ給湯室外機１は、内部熱交換器１１の重心の高さとマフラ２ｂの重心の高さとが同じ高さになるように構成されている。これにより、モーメントの変化によって圧縮機２の傾きが増加することを抑制することができる。 In addition, when the height of the center of gravity of the internal heat exchanger 11 and the height of the center of gravity of the muffler 2b differ significantly, the change in moment when the compressor 2 is inclined becomes remarkable. In this respect, the heat pump water heater outdoor unit 1 of the first embodiment is configured such that the height of the center of gravity of the internal heat exchanger 11 and the height of the center of gravity of the muffler 2b are the same height. Thereby, it can suppress that the inclination of the compressor 2 increases by the change of a moment.
　内部熱交換器１１は、弾性部材１３を介在させた状態で内部熱交換器ホルダ２ｅの固定腕部に固定される。このような構成によれば、圧縮機２から内部熱交換器１１へ伝達される振動が減衰されるので、内部熱交換器１１において発生する振動が抑制される。また、内部熱交換器１１は、渦巻形状に曲げられた配管がバンド部材２１によって締め付けられている。これにより、内部熱交換器１１において発生する振動がさらに抑制される。 The internal heat exchanger 11 is fixed to the fixed arm of the internal heat exchanger holder 2 e with the elastic member 13 interposed. According to such a configuration, the vibration transmitted from the compressor 2 to the internal heat exchanger 11 is attenuated, so the vibration generated in the internal heat exchanger 11 is suppressed. Further, in the internal heat exchanger 11, a pipe bent in a spiral shape is tightened by the band member 21. Thereby, the vibration generated in the internal heat exchanger 11 is further suppressed.
　脚部材２ｃは、内部熱交換器１１に接触しない形状とされるので、内部熱交換器１１を防振マウント３の上端位置よりも下方まで延びた形状を採用することができる。これにより、内部熱交換器１１の長手方向の全長を有効に延ばすことが可能となる。 Since the leg members 2c do not come into contact with the internal heat exchanger 11, a shape in which the internal heat exchanger 11 extends below the upper end position of the anti-vibration mount 3 can be adopted. This makes it possible to effectively extend the entire length of the internal heat exchanger 11 in the longitudinal direction.
　防振マウント３は、ベース１７の上面と脚部材２ｃの下面との間に配置されている。これにより、脚部材２ｃの上面に配置された圧縮機の振動を効果的に減衰することができる。 The anti-vibration mount 3 is disposed between the upper surface of the base 17 and the lower surface of the leg member 2c. Thereby, the vibration of the compressor disposed on the upper surface of the leg member 2c can be effectively damped.
［実施の形態１のヒートポンプ給湯室外機の変形例］
　ところで、実施の形態１のヒートポンプ給湯室外機１は、以下のように変形した形態を採用してもよい。 [Modification of heat pump water heater outdoor unit of the first embodiment]
By the way, the heat pump water heater outdoor unit 1 of Embodiment 1 may employ | adopt the form deformed as follows.
　マフラホルダ２ｄの形状は、圧縮機２のシェル２ａの側面にマフラ２ｂを固定できる構成であれば、その形状に限定はない。また、内部熱交換器ホルダ２ｅについても、圧縮機２のシェル２ａの側面に内部熱交換器１１を固定できる構成であれば、その形状に限定はない。なお、このことは、後述する実施の形態２のヒートポンプ給湯室外機１においても同様である。 The shape of the muffler holder 2d is not limited as long as the muffler 2b can be fixed to the side surface of the shell 2a of the compressor 2. The shape of the internal heat exchanger holder 2e is also not limited as long as the internal heat exchanger 11 can be fixed to the side surface of the shell 2a of the compressor 2. In addition, this is the same also in the heat pump water heater outdoor unit 1 of Embodiment 2 mentioned later.
実施の形態２．
　次に、図８から図１１を参照して実施の形態２について説明する。実施の形態２の説明では、上述した実施の形態１との相違点を中心に説明し、同一部分または相当部分については説明を簡略化または省略する。 Second Embodiment
Second Embodiment A second embodiment will now be described with reference to FIGS. In the description of the second embodiment, differences from the above-described first embodiment will be mainly described, and the description of the same or corresponding parts will be simplified or omitted.
　図８は、実施の形態２のヒートポンプ給湯室外機１の内部構造を示す前面図である。図９は、図１に示す圧縮機の周辺の構成を前面側から見た拡大図である。また、図１０は、図９に示す圧縮機の周辺の構成をＣ方向から見た図である。さらに、図１１は、図９に示す圧縮機の周辺の構成をＤ方向から見た図である。以下、これらの図を参照して、実施の形態２のヒートポンプ給湯室外機１の特徴について説明する。 FIG. 8 is a front view showing the internal structure of the heat pump water heater outdoor unit 1 of the second embodiment. FIG. 9 is an enlarged view of the peripheral configuration of the compressor shown in FIG. 1 as viewed from the front side. FIG. 10 is a view of the configuration around the compressor shown in FIG. 9 as viewed from the C direction. Furthermore, FIG. 11 is a view of the configuration around the compressor shown in FIG. 9 as viewed from the D direction. Hereinafter, the features of the heat pump water heater outdoor unit 1 of the second embodiment will be described with reference to these drawings.
　これらの図に示すように、実施の形態２のヒートポンプ給湯室外機１は、圧縮機２のシェル２ａに沿って円弧状に湾曲した形状の内部熱交換器２２を備えている点に特徴を有している。より詳しくは、図１０に示すように、内部熱交換器２２は、上面視において圧縮機２のシェル２ａの同心円弧となる形状を有している。このような形状によれば、内部熱交換器２２が上面視において一直線上となる形状よりも機械室１４内の空間を有効に使用することができる。これにより、ヒートポンプ給湯室外機１の寸法の拡大、重量の増大、及び材料コストの増加を抑制しつつ内部熱交換器２２の短手方向の長さを延ばすことが可能となる。 As shown in these figures, the heat pump water heater outdoor unit 1 according to the second embodiment is characterized in that it has an internal heat exchanger 22 having a shape curved in an arc along the shell 2a of the compressor 2. doing. More specifically, as shown in FIG. 10, the internal heat exchanger 22 has a shape that is a concentric arc of the shell 2a of the compressor 2 in top view. According to such a shape, the space in the machine chamber 14 can be used more effectively than the shape in which the internal heat exchanger 22 is in a straight line in top view. As a result, it is possible to extend the length in the short direction of the internal heat exchanger 22 while suppressing the size increase, the weight increase, and the material cost increase of the heat pump water heater outdoor unit 1.
　また、圧縮機２からの放熱及び騒音を抑制することを目的として、吸音材を兼ねた断熱材をマフラ２ｂと内部熱交換器２２を含めた圧縮機２の周囲に設けることがある。実施の形態２のヒートポンプ給湯室外機１では、内部熱交換器２２が湾曲しているため、断熱材の寸法の拡大を防ぐことができる。 Further, for the purpose of suppressing heat radiation and noise from the compressor 2, a heat insulating material that doubles as a sound absorbing material may be provided around the compressor 2 including the muffler 2 b and the internal heat exchanger 22. In the heat pump water heater outdoor unit 1 of Embodiment 2, since the internal heat exchanger 22 is curved, expansion of the dimension of a heat insulating material can be prevented.
１　ヒートポンプ給湯室外機、　２　圧縮機、　２ａ　シェル、　２ｂ　マフラ、　２ｃ　脚部材、　２ｄ　マフラホルダ、　２ｅ　内部熱交換器ホルダ、　３　防振マウント、　４　吐出管、　５　吸入管、　６　送風機、　７　空気冷媒熱交換器、　８　水冷媒熱交換器、　９　電気品収納箱、　９ａ　端子台、　１０　膨張弁、　１１　内部熱交換器、　１２　収納容器、　１３　弾性部材、　１４　機械室、　１５　送風機室、　１６　仕切板、　１７　ベース、　１８　フロントパネル、　１８ａ　前面部、　１８ｂ　左側面部、　１８ｃ　格子、　１９　サイドパネル、　１９ａ　後面部、　１９ｂ　右側面部、　２０　トップパネル、　２１　バンド部材、　２２　内部熱交換器、　２４　電子基板、　２７　サービスパネル、　２８　水入口バルブ、　２９　湯出口バルブ、　３０　内部管、　３１　内部管、　３３　貯湯装置、　３４　貯湯タンク、　３５　水ポンプ、　３６　外部管、　３７　外部管、　３８　管、　３９　管、　４０　混合弁、　４１　給湯管、　４２　給水管、　４３　給湯管、　４４　給水管 DESCRIPTION OF SYMBOLS 1 heat pump hot water supply outdoor unit, 2 compressor, 2a shell, 2b muffler, 2c leg member, 2d muffler holder, 2e internal heat exchanger holder, 3 anti-vibration mount, 4 discharge pipe, 5 suction pipe, 6 blower, 7 air refrigerant heat Exchanger, 8 water refrigerant heat exchangers, 9 electric goods storage box, 9a terminal block, 10 expansion valves, 11 internal heat exchangers, 12 storage containers, 13 elastic members, 14 machine rooms, 15 fan rooms, 16 partition plates, 17 base, 18 front panel, 18a front panel, 18b left side panel, 18c grid, 19 side panel, 19a rear panel, 19b right side panel, 20 top panel, 21 band members, 22 internal heat exchangers, 24 electronic boards, 27 services panel 28 water inlet valve, 29 hot water outlet valve, 30 internal pipe, 31 internal pipe, 33 hot water storage device, 34 hot water storage tank, 35 water pump, 36 external pipe, 37 external pipe, 38 pipe, 39 pipe, 40 mixing valve, 41 hot water supply Pipe, 42 water supply pipe, 43 hot water supply pipe, 44 water supply pipe

Claims (9)

  1. 　底板と、
    　前記底板の上に配置された圧縮機と、
    　前記圧縮機の外側面に固定されたマフラと、
    　前記圧縮機の外側面に固定された内部熱交換器と、を備え、
    　前記内部熱交換器は、前記圧縮機を挟んで前記マフラの反対側に配置されるように構成されていることを特徴とするヒートポンプ給湯室外機。     Bottom plate,
    A compressor disposed on the bottom plate;
    A muffler fixed to the outer surface of the compressor;
    And an internal heat exchanger fixed to the outer surface of the compressor.
    The heat pump water heater outdoor unit is characterized in that the internal heat exchanger is disposed on the opposite side of the muffler with the compressor interposed therebetween.
  2. 　前記内部熱交換器は、重心の高さが前記マフラの重心の高さと等しくなる位置に固定されていることを特徴とする請求項１に記載のヒートポンプ給湯室外機。 The heat pump water heater outdoor unit according to claim 1, wherein the internal heat exchanger is fixed at a position where the height of the center of gravity is equal to the height of the center of gravity of the muffler.
  3. 　前記圧縮機の外側面に固定されたマフラホルダを更に備え、
    　前記マフラは、前記マフラホルダに固定されることを特徴とする請求項１又は請求項２に記載のヒートポンプ給湯室外機。     The compressor further comprises a muffler holder fixed to the outer surface of the compressor,
    The heat pump water heater outdoor unit according to claim 1 or 2, wherein the muffler is fixed to the muffler holder.
  4. 　前記圧縮機の外側面に固定された内部熱交換器ホルダを更に備え、
    　前記内部熱交換器は、前記内部熱交換器ホルダに固定されることを特徴とする請求項１から請求項３の何れか１項に記載のヒートポンプ給湯室外機。     The heat exchanger further comprises an internal heat exchanger holder fixed to the outer surface of the compressor,
    The heat pump water heater outdoor unit according to any one of claims 1 to 3, wherein the internal heat exchanger is fixed to the internal heat exchanger holder.
  5. 　前記内部熱交換器ホルダと前記内部熱交換器との間に介在するように設けられた弾性部材を更に備えることを特徴とする請求項４に記載のヒートポンプ給湯室外機。 The heat pump water heater outdoor unit according to claim 4, further comprising an elastic member provided so as to be interposed between the internal heat exchanger holder and the internal heat exchanger.
  6. 　前記内部熱交換器は、
    　渦巻形状に曲げられた配管と、
    　前記配管を束ねて締め付けるバンド部材と、
    　を備えることを特徴とする請求項１から請求項５の何れか１項に記載のヒートポンプ給湯室外機。     The internal heat exchanger is
    Pipes bent into a spiral shape,
    A band member that bundles and tightens the piping;
    The heat pump water heater outdoor unit according to any one of claims 1 to 5, comprising:
  7. 　前記圧縮機の底面に固定された脚部材と、
    　前記脚部材と前記底板との間に介在するように設けられた複数の防振マウントと、を備え、
    　前記脚部材は、上面視において前記内部熱交換器に重ならない形状に構成されていることを特徴とする請求項１から請求項６の何れか１項に記載のヒートポンプ給湯室外機。     A leg member fixed to a bottom surface of the compressor;
    A plurality of anti-vibration mounts provided so as to be interposed between the leg members and the bottom plate;
    The heat pump water heater outdoor unit according to any one of claims 1 to 6, wherein the leg member is formed in a shape that does not overlap the internal heat exchanger in a top view.
  8. 　前記内部熱交換器は、前記圧縮機の外側面に沿って湾曲した形状に構成されていることを特徴とする請求項１から請求項７の何れか１項に記載のヒートポンプ給湯室外機。 The heat pump water heater outdoor unit according to any one of claims 1 to 7, wherein the internal heat exchanger is formed in a curved shape along the outer surface of the compressor.
  9. 　前記内部熱交換器は、上面視において前記圧縮機の外側面の同心円弧となるように構成されていることを特徴とする請求項８に記載のヒートポンプ給湯室外機。 The heat pump water heater outdoor unit according to claim 8, wherein the internal heat exchanger is configured to be a concentric arc of an outer surface of the compressor in a top view.
PCT/JP2017/046728 2017-12-26 2017-12-26 Heat pump hot water supplying outdoor unit WO2019130439A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021161522A1 (en) * 2020-02-14 2021-08-19

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023174740A1 (en) * 2022-03-14 2023-09-21 Bdr Thermea Group B.V. Flow guiding apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005337700A (en) * 2004-04-28 2005-12-08 Fuji Electric Retail Systems Co Ltd Refrigerant cooling circuit
JP2006090658A (en) * 2004-09-24 2006-04-06 Denso Corp Heat pump apparatus
JP2007271211A (en) 2006-03-31 2007-10-18 Daikin Ind Ltd Refrigerating device
JP2010048466A (en) * 2008-08-21 2010-03-04 Daikin Ind Ltd Refrigerating device
JP2010121844A (en) * 2008-11-19 2010-06-03 Panasonic Corp Refrigerating cycle device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG11201707921TA (en) * 2015-03-27 2017-10-30 Mitsubishi Electric Corp Heat pump water-heater outdoor unit and water heater
CN204830470U (en) * 2015-07-14 2015-12-02 南昌桑坤新能源有限公司 Solar energy air can all -weather water resource heat pump hot -water heating system of combination formula
JP6631706B2 (en) * 2016-06-09 2020-01-15 三菱電機株式会社 Heat pump hot water outdoor unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005337700A (en) * 2004-04-28 2005-12-08 Fuji Electric Retail Systems Co Ltd Refrigerant cooling circuit
JP2006090658A (en) * 2004-09-24 2006-04-06 Denso Corp Heat pump apparatus
JP2007271211A (en) 2006-03-31 2007-10-18 Daikin Ind Ltd Refrigerating device
JP2010048466A (en) * 2008-08-21 2010-03-04 Daikin Ind Ltd Refrigerating device
JP2010121844A (en) * 2008-11-19 2010-06-03 Panasonic Corp Refrigerating cycle device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021161522A1 (en) * 2020-02-14 2021-08-19
WO2021161522A1 (en) * 2020-02-14 2021-08-19 三菱電機株式会社 Heat pump device and hot water storage type hot water supplier
JP7327630B2 (en) 2020-02-14 2023-08-16 三菱電機株式会社 Heat pump device and hot water storage type water heater

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