WO2020100255A1 - Dispositif pompe à chaleur - Google Patents

Dispositif pompe à chaleur Download PDF

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Publication number
WO2020100255A1
WO2020100255A1 PCT/JP2018/042303 JP2018042303W WO2020100255A1 WO 2020100255 A1 WO2020100255 A1 WO 2020100255A1 JP 2018042303 W JP2018042303 W JP 2018042303W WO 2020100255 A1 WO2020100255 A1 WO 2020100255A1
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WO
WIPO (PCT)
Prior art keywords
refrigerant
base
elastic member
heat exchanger
compressor
Prior art date
Application number
PCT/JP2018/042303
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English (en)
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 PCT/JP2018/042303 priority Critical patent/WO2020100255A1/fr
Priority to JP2020556528A priority patent/JP6943346B2/ja
Publication of WO2020100255A1 publication Critical patent/WO2020100255A1/fr

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    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • 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
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type

Definitions

  • the present invention relates to a heat pump device.
  • the energy-efficient heat pump water heater that can boil the water by absorbing the heat of the air is widely used.
  • the heat pump hot water supply outdoor unit provided in the heat pump water heater is an air-refrigerant heat exchanger that absorbs heat of air into the refrigerant, a blower that blows air to the air-refrigerant heat exchanger, a compressor that compresses the refrigerant, and a heat of the refrigerant.
  • a water-refrigerant heat exchanger for heating the water see, for example, Patent Document 1.
  • the housing of the heat pump hot water supply outdoor unit When the compressor is operating, the housing of the heat pump hot water supply outdoor unit may be excited by the compressor, and noise may be generated.
  • the present invention has been made to solve the above problems, and an object of the present invention is to provide a heat pump device capable of reducing the emission of noise such as low frequency sound at low cost.
  • the heat pump device of the present invention includes a base, a compressor arranged on the base for compressing a refrigerant, a container arranged on the base, and a container arranged in the container to generate heat between the refrigerant and the heat medium.
  • a heat exchanger for exchanging heat an elastic member disposed above the base and having elasticity, a first foot member disposed below the base and closer to the heat exchanger than the compressor, and a base below the base.
  • a second foot member located closer to the compressor than the heat exchanger, wherein the container has a first lower surface in contact with the base and a second lower surface not in contact with the base, and the elastic member. Is for contacting the second lower surface and the base.
  • FIG. 3 is an exploded perspective view showing a heat pump hot water supply outdoor unit according to the first embodiment.
  • FIG. 2 is an exploded perspective view for explaining an installation state of a water-refrigerant heat exchanger with respect to a base in the heat pump hot water supply outdoor unit shown in FIG. 1.
  • FIG. 2 is a front view and an enlarged view of main parts showing an internal structure of the heat pump hot water supply outdoor unit shown in FIG. 1. It is a front sectional view which shows typically a part of heat pump hot water supply outdoor unit shown in FIG. It is a front view which shows a part of heat pump hot water supply outdoor unit shown in FIG.
  • FIG. 7 is a front view showing a part of the heat pump hot water supply outdoor unit according to the second embodiment.
  • FIG. 13 is a front cross-sectional view schematically showing a part of the heat pump hot water supply outdoor unit according to the third embodiment.
  • FIG. 14 is a bottom view of a container and an elastic member included in the heat pump hot water supply outdoor unit according to the fourth embodiment.
  • FIG. 1 is an exploded perspective view showing a heat pump hot water supply outdoor unit according to the first embodiment.
  • the heat pump hot water supply outdoor unit 1 shown in FIG. 1 is an example of the heat pump device according to the present disclosure.
  • the lower left in FIG. 1 corresponds to the front of the heat pump hot water supply outdoor unit 1, and the upper right in FIG. 1 corresponds to the rear of the heat pump hot water supply outdoor unit 1.
  • the heat pump hot water supply outdoor unit 1 has an outer shell including a base 17 forming a bottom portion and a housing.
  • the housing has a front surface portion 18, a rear surface portion 19, an upper surface portion 20, a right side surface portion 21, and a left side surface portion 22.
  • the area of the heat pump hot water supply outdoor unit 1 other than the portion where the air-refrigerant heat exchanger 7 is installed is covered with the base 17 and the housing.
  • the base 17 and the housing are formed of, for example, a sheet metal material.
  • the interior of the heat pump hot water supply outdoor unit 1 is partitioned by a partition plate 16 into a machine room 14 on the right side and a blower room 15 on the left side as viewed from the front.
  • the water-refrigerant heat exchanger 8 is installed on the base 17 below the blower chamber 15.
  • a compressor 2 for compressing the refrigerant, an expansion valve for depressurizing the refrigerant, a suction pipe 4 and a discharge pipe connecting these components are provided in the machine chamber 14.
  • Refrigerant piping such as 5 and other refrigerant circuit parts are incorporated.
  • a compressor (not shown) that performs a compression operation of the refrigerant
  • a motor (not shown) that is connected to the compressor and drives the compressor are incorporated.
  • the electric power supplied from the outside causes the motor and the compressor to rotate at a predetermined rotation speed.
  • the foot member 2a attached to the lower portion of the compressor 2 is provided with three to four antivibration mounts 3.
  • the vibration-proof mount 3 is a molded product of a rubber or metal coil having a roughly cylindrical shape.
  • the anti-vibration mount 3 is installed on the upper surface of the base 17 and elastically supports the compressor 2. Further, a suction pipe 4 for sucking the refrigerant and a discharge pipe 5 for discharging the refrigerant after compressing the refrigerant inside the compressor 2 are attached to the compressor 2, respectively.
  • the compressor 2 is connected to the refrigerant inlet portion of the water refrigerant heat exchanger 8 via the discharge pipe 5.
  • the refrigerant outlet part of the water-refrigerant heat exchanger 8 is connected to the inlet part of the expansion valve (not shown) via the outlet side refrigerant pipe.
  • a coil member is attached to the outer surface of the main body of the refrigerant flow passage, and the electromagnetic flow generated by externally energizing this coil member activates the internal flow passage resistance adjusting section to operate the refrigerant flow passage resistance. Is adjusted so that the high pressure refrigerant on the upstream side of the expansion valve and the low pressure refrigerant on the downstream side of the expansion valve are adjusted to a predetermined pressure.
  • the outlet of the expansion valve is connected to the refrigerant inlet of the air-refrigerant heat exchanger 7 via another refrigerant pipe.
  • the refrigerant outlet of the air-refrigerant heat exchanger 7 is connected to the compressor 2 via the suction pipe 4.
  • Other refrigerant circuit parts may be attached in the middle of the refrigerant pipe.
  • a predetermined amount of refrigerant is sealed in the sealed space of the refrigerant circuit configured as described above. Carbon dioxide, for example, is used as the refrigerant.
  • the machine room 14 includes an internal water pipe 27 connected to the water inlet of the water refrigerant heat exchanger 8 and an internal water pipe 28 connected to the hot water outlet of the water refrigerant heat exchanger 8.
  • the water inlet valve 29 and the hot water outlet valve 30 are attached to the right end portion of the base 17 and the lower portion of the right side surface portion 21 of the housing.
  • the internal water pipe 27 is connected to the water inlet valve 29.
  • the internal water pipe 28 is connected to the hot water outlet valve 30.
  • the water inlet valve 29 is arranged in the upper part and the hot water outlet valve 30 is arranged in the lower part.
  • a service panel 23 is attached to the right side surface portion 21 in order to protect the water inlet valve 29 and the hot water outlet valve 30.
  • the blower room 15 has a large space for securing an air passage.
  • the blower 6 is a combination of a propeller blade having two to three blades and a motor for driving the propeller blade to rotate. When the electric power is supplied to the motor from the outside, the propeller blades rotate at a predetermined rotation speed.
  • the air-refrigerant heat exchanger 7 has a large number of thin aluminum plate fins closely attached to a long refrigerant pipe formed by bending back and forth a plurality of times, and has a substantially flat overall shape.
  • the electric part storage box 9 stores electric parts such as an inverter power supply for driving and controlling the compressor 2, the expansion valve, the blower 6, and the like.
  • the inverter power supply changes the rotation speed of the motor of the compressor 2 to a predetermined rotation speed of about several tens rps (Hz) to 100 rps (Hz), and changes the opening degree of the expansion valve to a predetermined amount. Further, the rotation speed of the blower 6 is controlled so as to be changed to a predetermined rotation speed of several hundred rpm to 1,000 rpm.
  • a terminal block 9a for connecting external electrical wiring is provided on the right side of the electrical component storage box 9.
  • a service panel 23 attached to the right side surface portion 21 of the housing protects the terminal block 9a.
  • FIG. 2 is an exploded perspective view for explaining the installation state of the water-refrigerant heat exchanger 8 with respect to the base 17 in the heat pump hot water supply outdoor unit 1 shown in FIG.
  • FIG. 3 is a front view and an enlarged view of a main part showing an internal structure of the heat pump hot water supply outdoor unit 1 shown in FIG. 1.
  • the water-refrigerant heat exchanger 8 is a device for transferring heat of the refrigerant to water to heat the water.
  • Water in the present embodiment corresponds to a liquid heat medium.
  • the body of the water-refrigerant heat exchanger 8 has a configuration in which a long water pipe 8a and a long refrigerant pipe 8b are combined.
  • the weight of the water filling the water pipe 8a and the weight of the refrigerant filling the refrigerant pipe 8b make the weight of the water-refrigerant heat exchanger 8 as a whole Especially large compared to parts.
  • the length in the left-right direction of the water-refrigerant heat exchanger 8 is longer than both the length in the front-rear direction and the length in the up-down direction of the water-refrigerant heat exchanger 8.
  • the water-refrigerant heat exchanger 8 is housed in a container 12.
  • the container 12 is made of, for example, foamed plastic such as foamed polyurethane and has a heat insulating property.
  • the container 12 has a substantially rectangular parallelepiped outer shape in which the length in the left-right direction is longer than both the length in the front-rear direction and the length in the vertical direction.
  • the container 12 is installed on the upper surface of the base 17 located below the blower 6 in the blower chamber 15.
  • the front surface, the rear surface, the left side surface, and the right side surface of the container 12 are surrounded by the surrounding member 10 made of a sheet metal material attached to the base 17.
  • the water-refrigerant heat exchanger 8 is covered with a heat insulating lid 13 from above.
  • the heat insulating lid 13 is made of, for example, foamed plastic such as foamed polyurethane and has heat insulating properties.
  • a lid member 11 made of a sheet metal material is installed so as to cover the heat insulating lid 13 from above.
  • a first foot member 24 and a second foot member 25 for fixing the heat pump hot water supply outdoor unit 1 to the ground or a pedestal are installed under the base 17, a first foot member 24 and a second foot member 25 for fixing the heat pump hot water supply outdoor unit 1 to the ground or a pedestal are installed.
  • Each of the first foot member 24 and the second foot member 25 is attached to the lower surface of the base 17 by a method such as several spot welding.
  • the first foot member 24 on the left side when viewed from the front is closer to the water-refrigerant heat exchanger 8 than the compressor 2. That is, the distance between the center of the first foot member 24 and the center of the water-refrigerant heat exchanger 8 is shorter than the distance between the center of the first foot member 24 and the center of the compressor 2.
  • the second foot member 25 on the right side when viewed from the front is located closer to the compressor 2 than the water-refrigerant heat exchanger 8.
  • the first foot member 24 and the second foot member 25 have substantially the same shape.
  • the first foot member 24 and the second foot member 25 are formed of, for example, a sheet metal material.
  • Each of the first foot member 24 and the second foot member 25 has a relatively small width, that is, a lateral dimension.
  • Each of the first foot member 24 and the second foot member 25 has an elongated shape whose longitudinal direction is the front-rear direction. The front end portion of each of the first foot member 24 and the second foot member 25 extends slightly forward of the front surface portion 18 of the housing.
  • each of the first foot member 24 and the second foot member 25 projects slightly rearward from the rear surface portion 19 of the housing. According to the first foot member 24 and the second foot member 25 as described above, the heat pump hot water supply outdoor unit 1 can be stably installed in a small space with a small number of materials.
  • the first foot member 24 is located farther from the compressor 2 than the position directly below the center of gravity 8c of the water-refrigerant heat exchanger 8.
  • the water-refrigerant heat exchanger 8 is located above the first foot member 24, but not above the second foot member 25.
  • the compressor 2 is located above the second foot member 25.
  • the heat pump hot water supply is provided.
  • the vertical size of the outdoor unit 1 can be reduced, and the material cost can be reduced.
  • Such a heat pump hot water supply outdoor unit 1 includes a hot water storage device (not shown) in which a hot water storage tank having a capacity of about several hundred liters and a water pump for sending water in the hot water storage tank are incorporated, and It is used by connecting through a pipe (not shown), a second external water pipe (not shown), and an electric wiring (not shown).
  • the inlet of the water pump is connected to the bottom of the hot water storage tank.
  • the first external water pipe connects between the outlet of the water pump and the water inlet valve 29.
  • the second external water pipe connects between the upper part of the hot water storage tank and the hot water outlet valve 30.
  • the operation of the heat pump hot water supply outdoor unit 1 in the heat storage operation for increasing the amount of hot water and the amount of stored heat in the hot water storage tank in the hot water storage device will be described.
  • the inverter power supply changes the rotation speed of the motor to a predetermined rotation speed of several tens rps (Hz) to hundreds rps (Hz).
  • Hz tens rps
  • Hz tens rps
  • Hz tens rps
  • the motor When electric power is supplied to the motor of the blower 6 from the inverter power supply housed in the electric component storage box 9, the motor is driven, and the propeller blades of the blower 6 connected to the motor are rotationally driven.
  • the inverter power supply changes the rotation speed of the motor to about several hundred rpm to a thousand rpm and changes the flow rate of the air passing through the air-refrigerant heat exchanger 7, so that the refrigerant and the air in the air-refrigerant heat exchanger 7 are separated from each other.
  • the amount of heat exchange between the two is adjusted and controlled to a predetermined amount. Due to the blowing of the blower 6, the air passes through the air-refrigerant heat exchanger 7.
  • the expansion valve causes the internal flow path resistance adjusting section to operate by the electromagnetic action generated in the coil.
  • the high-pressure refrigerant on the upstream side of the expansion valve and the low-pressure refrigerant on the downstream side of the expansion valve are adjusted to a predetermined pressure by operating to adjust the flow path resistance of the refrigerant.
  • the rotation speed of the compressor 2, the rotation speed of the blower 6, and the flow path resistance of the expansion valve are controlled according to the installation environment and the usage environment of the heat pump hot water supply outdoor unit 1.
  • the refrigerant When the compression section in the compressor 2 is driven, the refrigerant is compressed in the compression section, and the low-pressure refrigerant is sucked into the compressor 2 through the suction pipe 4.
  • the low-pressure refrigerant is compressed in the compression section inside the compressor 2 to become a high-temperature high-pressure refrigerant, and is discharged from the compressor 2 to the discharge pipe 5.
  • This high-temperature high-pressure refrigerant flows into the refrigerant inlet portion of the water-refrigerant heat exchanger 8 from the discharge pipe 5, exchanges heat with the low-temperature water in the water-refrigerant heat exchanger 8, and heats the low-temperature water to generate high-temperature hot water.
  • the high-temperature high-pressure refrigerant reduces the enthalpy and the temperature in the water-refrigerant heat exchanger 8.
  • This high-pressure refrigerant flows from the refrigerant outlet of the water-refrigerant heat exchanger 8 through the outlet-side refrigerant pipe into the inlet of the expansion valve.
  • the high-pressure refrigerant is decompressed to a predetermined pressure by the expansion valve and its temperature drops to become a low-temperature low-pressure refrigerant.
  • This low-temperature low-pressure refrigerant flows into the inlet of the air-refrigerant heat exchanger 7 from the outlet of the expansion valve.
  • the low-temperature low-pressure refrigerant exchanges heat with the air in the air-refrigerant heat exchanger 7 to increase the enthalpy. Then, the low-pressure refrigerant flows into the suction pipe 4 from the outlet of the air-refrigerant heat exchanger 7 and is sucked into the compressor 2. In this way, the refrigerant circulates to perform the heat pump cycle. At the same time, the low temperature water in the lower part of the hot water storage tank in the hot water storage device passes through the first external water pipe by the water pump in the hot water storage device and flows into the internal water pipe 27 via the water inlet valve 29 of the heat pump hot water supply outdoor unit 1.
  • the main body of the water-refrigerant heat exchanger 8 has a structure in which a plurality of (three in the illustrated configuration) refrigerant pipes 8b through which a refrigerant passes are spirally wound around an outer periphery of a water pipe 8a through which water passes. It is composed of long items.
  • the main body of the water-refrigerant heat exchanger 8 has a configuration in which the refrigerant pipe 8b is wound around the outer periphery of the water pipe 8a over almost the entire length. ing.
  • the refrigerant pipe 8b is wound in close contact with the outer circumference of the water pipe 8a, and is fixed by, for example, soldering or brazing. However, both may be joined only by pressure welding or the like.
  • the main body of the water-refrigerant heat exchanger 8 is formed by bending and shaping such a long object at a plurality of locations so that it can be stored in the container 12.
  • FIG. 4 is a front sectional view schematically showing a part of the heat pump hot water supply outdoor unit 1 shown in FIG.
  • FIG. 5 is a front view showing a part of heat pump hot water supply outdoor unit 1 shown in FIG.
  • the container 12 has a first lower surface 12 a that contacts the base 17 and a second lower surface 12 b that does not contact the base 17.
  • An elastic member 26 having elasticity is arranged on the base 17.
  • the elastic member 26 corresponds to a vibration damping member or a vibration damping member.
  • the lower surface of the elastic member 26 is in contact with the upper surface of the base 17.
  • the upper surface of the elastic member 26 is in contact with the second lower surface 12b of the container 12.
  • the second lower surface 12b faces the upper surface of the base 17.
  • the elastic member 26 is disposed in the gap between the second lower surface 12b and the upper surface of the base 17.
  • the elastic member 26 is above the position between the first foot member 24 and the second foot member 25.
  • the container 12 has a bottom wall 12c and a side wall 12d.
  • the side wall 12d extends upward from the peripheral edge of the bottom wall 12c.
  • the water-refrigerant heat exchanger 8 is arranged in a space surrounded by the bottom wall 12c and the side wall 12d.
  • the first lower surface 12a and the second lower surface 12b correspond to the lower surface of the bottom wall 12c.
  • the container 12 has a right end 12e and a left end 12f.
  • the right end 12e corresponds to the first end of the container 12 that is located closest to the compressor 2.
  • the left end portion 12f corresponds to the second end portion of the container 12 that is farthest from the compressor 2.
  • a part of the weight of the water-refrigerant heat exchanger 8 is directly transferred from the first lower surface 12a of the container 12 to the upper surface of the base 17. Another part of the weight of the water-refrigerant heat exchanger 8 is indirectly transmitted from the second lower surface 12b of the container 12 to the upper surface of the base 17 via the elastic member 26.
  • the vertical dimension of the elastic member 26 corresponds to the thickness of the elastic member 26.
  • the elastic member 26 can be expanded and contracted in the vertical direction. That is, when the elastic member 26 expands and contracts, the thickness of the elastic member 26 changes.
  • the elastic member 26 in the present embodiment has a flat shape whose thickness is substantially constant over the entire area.
  • the dimension of the elastic member 26 in the front-rear direction may be approximately the same as the dimension of the container 12 in the front-rear direction.
  • the elastic member 26 is preferably made of at least one of a rubber material, a rubber hollow material, a butyl rubber material, and a metal spring material.
  • the elastic member 26 is a member having elastic characteristics and damping characteristics.
  • the elastic member 26 may be made by combining a plurality of parts.
  • the elastic member 26 preferably has a lower elastic modulus than the container 12. For example, it is desirable that the elastic member 26 have a longitudinal elastic coefficient regarding vertical strain lower than that of the container 12. By setting the elastic modulus of the elastic member 26 lower than that of the container 12, it is further advantageous in reducing the vibration of the water-refrigerant heat exchanger 8. Further, the elastic member 26 preferably has a damping characteristic higher than that of the container 12.
  • the second lower surface 12b is located higher than the first lower surface 12a.
  • the region where the first lower surface 12a is formed corresponds to the convex portion 12g which projects downward with respect to the region where the second lower surface 12b is formed.
  • the first lower surface 12a is above the first foot member 24.
  • the first lower surface 12a and the convex portion 12g are formed in a range including the upper side of the first foot member 24 and the vicinity of the left end portion 12f of the container 12.
  • the second lower surface 12b is located higher than the first lower surface 12a, so that the space for arranging the elastic member 26 can be easily secured.
  • the convex portion formed on the upper surface of the base 17 may be in contact with the first lower surface 12a of the container 12. In that case, the first lower surface 12a and the second lower surface 12b may be at the same height position.
  • the vibration of the compressor 2 is transmitted from the anti-vibration mount 3 to the base 17, and further the front surface portion 18, the rear surface portion 19, the upper surface portion 20, the right side surface portion 21 and the left side surface portion 22 (hereinafter, simply referred to as a “casing”). To say “body”). Further, the vibration of the compressor 2 is transmitted from the suction pipe 4 to the air-refrigerant heat exchanger 7, and is transmitted to the base 17 and the housing. Further, the vibration of the compressor 2 is transmitted from the discharge pipe 5 to the water-refrigerant heat exchanger 8, the base 17, and the housing. In this way, the vibration of the compressor 2 is transmitted to the base 17 and the housing, which causes vibration, noise, and low-frequency sound of the heat pump hot water supply outdoor unit 1.
  • the natural frequency of translation, tilting, twisting, etc. of the structure in which the water-refrigerant heat exchanger 8, the base 17, the first foot member 24, and the second foot member 25 are combined. Is often less than 100 Hz.
  • this natural frequency is 1 time or about 2 times the rotation speed of the compressor 2
  • the vibration of the compressor 2 is transmitted from the discharge pipe 5 to the water / refrigerant heat exchanger 8 while the heat pump hot water supply outdoor unit 1 is operating
  • Low-frequency vibrations near these frequencies easily resonate in the water-refrigerant heat exchanger 8 and the base 17, and the low-frequency sound radiated from the base 17 increases and the low-frequency vibrations transmitted from the base 17 to the housing are increased. In many cases, the vibration increases and the low-frequency sound emitted from the housing increases.
  • the first foot member 24 is attached to a location corresponding to the lower side of the water-refrigerant heat exchanger 8
  • the second foot member 25 is attached to a location corresponding to the lower side of the compressor 2. Is located farther from the compressor 2 than directly below the center of gravity 8c of the water-refrigerant heat exchanger 8, the entire water-refrigerant heat exchanger 8 and the base 17 are integrated with each other with the attachment portion of the first foot member 24 as a fulcrum. Then, near the right end portion 12e of the container 12, low-frequency vibration in a vibration form in which the base 17 bends and swings up and down easily occurs.
  • FIG. 5 schematically shows such a vibration mode of the water-refrigerant heat exchanger 8 and the base 17.
  • the position between the first foot member 24 and the second foot member 25 is closer to the position of the water refrigerant heat exchanger 8 and the base 17 than the vicinity of the first foot member 24.
  • the amplitude is large.
  • low-frequency vibration in a vibration form having the maximum amplitude is likely to occur near the end of the water-refrigerant heat exchanger 8 on the side closer to the compressor 2.
  • the low frequency sound radiated from the base 17 increases, the low frequency vibration transmitted to each part of the housing increases, and the low frequency sound radiated from each part of the housing increases.
  • the following effects are obtained by providing the elastic member 26. Vibration of the water-refrigerant heat exchanger 8 is transmitted to the base 17 while being reduced by the elastic member 26.
  • the elastic member 26 expands and contracts, and the distance between the upper surface of the base 17 and the second lower surface 12b of the container 12 changes.
  • the elastic member 26 that expands and contracts acts so as to absorb and damp the vibration.
  • the low frequency sound radiated from the base 17 is reliably reduced, the low frequency vibration transmitted from the base 17 to each part of the housing is reliably reduced, and the low frequency sound radiated from each part of the housing is reliably reduced.
  • the elastic member 26 is not arranged above the first foot member 24. At the position above the first foot member 24, since the amplitude of the water-refrigerant heat exchanger 8 is unlikely to increase, even if the vibration of the water-refrigerant heat exchanger 8 is transmitted to the base 17 without passing through the elastic member 26, The vibration of 17 does not increase.
  • the area of the region where the elastic member 26 is arranged can be made smaller than the area of the entire lower surface of the container 12. Therefore, it is possible to suppress an increase in manufacturing cost due to the elastic member 26. Further, according to the present embodiment, there is no need to increase the plate thickness of the base 17 and each part of the housing to increase the rigidity, so that a significant increase in the cost of the heat pump hot water supply outdoor unit 1 can be prevented.
  • the elastic member 26 is arranged only in a part of the range from the boundary 12h between the first lower surface 12a and the second lower surface 12b to the right end 12e of the container 12. There is. That is, the left end of the elastic member 26 is on the right side of the boundary 12h, and the right end of the elastic member 26 is on the left side of the right end 12e of the container 12. As a result, in the present embodiment, it is possible to reliably reduce the low-frequency sound of heat pump hot water supply outdoor unit 1 while further reducing the size of elastic member 26.
  • the heat pump hot water supply outdoor unit 1 is effective in reducing the low frequency sound of the heat pump hot water supply outdoor unit 1, and is excellent in quietness in the low frequency sound while suppressing an increase in cost. Can be obtained.
  • the heat pump hot water supply outdoor unit 1 that supplies hot water often uses electric power at midnight, and noise and vibration at midnight, particularly low frequency sound, are of great interest to the user. Therefore, the effect of reducing low frequency sound according to the present embodiment significantly contributes.
  • the heat pump hot water supply outdoor unit 1 that uses carbon dioxide as a refrigerant generates more vibration in the compressor 2 than the air conditioner that uses the R410A refrigerant.
  • the embodiment further contributes to the reduction of low-frequency sound at midnight when the heat pump hot water supply outdoor unit 1 is operated by using the midnight power.
  • the structure of the water-refrigerant heat exchanger is not limited to the structure described above.
  • the water-refrigerant heat exchanger according to the present disclosure may have a structure in which a water pipe and a refrigerant pipe are linearly and closely joined.
  • the water-refrigerant heat exchanger may have a multi-tube structure in which an internal refrigerant pipe such as a refrigerant pipe is provided in an external pipe such as a water pipe.
  • the heat pump hot water supply outdoor unit 1 that exchanges heat between the refrigerant and water in the water / refrigerant heat exchanger 8 to generate high-temperature hot water has been described as an example, but the heat pump device according to the present disclosure is used. Is also applicable to those equipped with a heat exchanger that exchanges heat between a liquid heat medium other than water (for example, brine, antifreeze, etc.) and a refrigerant (for example, a heat pump outdoor unit for floor heating). It is possible.
  • a liquid heat medium other than water for example, brine, antifreeze, etc.
  • a refrigerant for example, a heat pump outdoor unit for floor heating
  • FIG. 6 is a front view showing a part of heat pump hot water supply outdoor unit 1A according to the second embodiment.
  • FIG. 7 is a front cross-sectional view schematically showing a part of heat pump hot water supply outdoor unit 1A shown in FIG.
  • the present embodiment is different from the first embodiment in that the elastic member 26 extends to the right end 12e of the container 12. That is, the region where the elastic members 26 are arranged in the present embodiment is enlarged to the right as compared with the first embodiment. According to the present embodiment, the vibration of the water-refrigerant heat exchanger 8 and the base 17 as shown in FIG. 6 can be further reduced by the elastic member 26 as compared with the first embodiment. As a result, the low frequency noise of the heat pump hot water supply outdoor unit 1 can be reduced more reliably.
  • FIG. 8 is a front sectional view schematically showing a part of heat pump hot water supply outdoor unit 1B according to the third embodiment.
  • the thickness of the portion of the elastic member 26 close to the compressor 2 is thicker than the thickness of the portion of the elastic member 26 distant from the compressor 2. ..
  • the elastic member 26 becomes thicker at the position where the vibration amplitude of the water-refrigerant heat exchanger 8 and the base 17 becomes larger. Therefore, the vibration of the water-refrigerant heat exchanger 8 and the base 17 can be further reduced by the elastic member 26 as compared with the first embodiment. As a result, the low frequency noise of the heat pump hot water supply outdoor unit 1 can be reduced more reliably.
  • the thickness of the elastic member 26 is gradually increased from left to right.
  • the upper surface of the elastic member 26 is an inclined surface that increases from left to right.
  • the range of the second lower surface 12b of the container 12 that contacts the upper surface of the elastic member 26 is an inclined surface that increases from left to right.
  • the thickness of the elastic member 26 may be increased stepwise from left to right. Even in that case, an effect similar to that of the present embodiment can be obtained. Even before the elastic member 26 is arranged between the upper surface of the base 17 and the second lower surface 12b of the container 12, that is, in a state where no external force is applied to the elastic member 26, the elastic member 26 moves from left to right. Has a thickness that increases continuously or stepwise.
  • FIG. 9 is a bottom view of container 12 and elastic member 26 included in the heat pump hot water supply outdoor unit according to the fourth embodiment.
  • the elastic member 26 in the present embodiment includes outer portions 26a and 26b arranged so as to extend along the edge of the second lower surface 12b and an inner side of the edge of the second lower surface 12b. And an inner portion 26c disposed in the area of.
  • the outer portion 26a has an elongated shape that extends along the front edge of the second lower surface 12b.
  • the outer portion 26b has an elongated shape that extends along the rear edge of the second lower surface 12b.
  • the inner portion 26c is between the outer portion 26a and the outer portion 26b.
  • the elastic member 26 is not arranged in the region between the outer portion 26a and the inner portion 26c.
  • the elastic member 26 is not arranged in the region between the outer portion 26b and the inner portion 26c.
  • the area in which the elastic member 26 is arranged is smaller than that in the first embodiment, which is more advantageous in reducing the material cost of the elastic member 26.
  • the elastic member 26 may be arranged so as to extend along the edge of the second lower surface 12b, and the elastic member 26 may not be arranged in a region inside the edge of the second lower surface 12b.
  • the inner portion 26c may be omitted and only the outer portions 26a and 26b may be arranged. By doing so, the region in which the elastic member 26 is arranged is further reduced, which is further advantageous in reducing the material cost of the elastic member 26.
  • 1, 1A, 1B heat pump hot water outdoor unit 2 compressor, 3 anti-vibration mount, 4 suction pipe, 5 discharge pipe, 6 blower, 7 air refrigerant heat exchanger, 8 water refrigerant heat exchanger, 8a water pipe, 8b refrigerant Tube, 8c center of gravity, 9 electrical parts storage box, 9a terminal block, 10 surrounding member, 11 lid member, 12 container, 12a first lower surface, 12b second lower surface, 12c bottom wall, 12d side wall, 12e right end, 12f left end.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Details Of Fluid Heaters (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

La présente invention concerne un dispositif pompe à chaleur comprenant : une base ; un compresseur agencé sur la base et destiné à comprimer un fluide frigorigène ; un récipient agencé sur la base ; un échangeur de chaleur agencé dans le récipient et destiné à effectuer un échange de chaleur entre le fluide frigorigène et un agent caloporteur ; un élément élastique agencé sur la base et présentant une certaine élasticité ; un premier élément pied agencé sous la base et situé à une position plus proche de l'échangeur de chaleur que du compresseur ; et un second élément pied agencé sous la base et situé à une position plus proche du compresseur que de l'échangeur de chaleur. Le récipient comporte une première surface inférieure en contact avec la base et une seconde surface inférieure qui n'est pas en contact avec la base. L'élément élastique est en contact avec la seconde surface inférieure et avec la base.
PCT/JP2018/042303 2018-11-15 2018-11-15 Dispositif pompe à chaleur WO2020100255A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2018/042303 WO2020100255A1 (fr) 2018-11-15 2018-11-15 Dispositif pompe à chaleur
JP2020556528A JP6943346B2 (ja) 2018-11-15 2018-11-15 ヒートポンプ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2018/042303 WO2020100255A1 (fr) 2018-11-15 2018-11-15 Dispositif pompe à chaleur

Publications (1)

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WO2020100255A1 true WO2020100255A1 (fr) 2020-05-22

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JP (1) JP6943346B2 (fr)
WO (1) WO2020100255A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005147619A (ja) * 2003-11-19 2005-06-09 Matsushita Electric Ind Co Ltd ヒートポンプ装置
JP2008151400A (ja) * 2006-12-18 2008-07-03 Mitsubishi Electric Corp 給湯室外機及び給湯空気調和機
JP2012052684A (ja) * 2010-08-31 2012-03-15 Panasonic Corp ヒートポンプ熱源機
JP2012137196A (ja) * 2010-12-24 2012-07-19 Noritz Corp ヒートポンプ式熱源機
JP2012163225A (ja) * 2011-02-03 2012-08-30 Mitsubishi Electric Corp ヒートポンプ給湯室外機
JP2013113450A (ja) * 2011-11-25 2013-06-10 Mitsubishi Electric Corp ヒートポンプ給湯室外機
JP2014020585A (ja) * 2012-07-12 2014-02-03 Panasonic Corp 熱交換器ユニットおよびそれを備えたヒートポンプ温水暖房装置
JP2015045425A (ja) * 2013-08-27 2015-03-12 株式会社ノーリツ ヒートポンプ給湯装置
WO2016181451A1 (fr) * 2015-05-11 2016-11-17 三菱電機株式会社 Appareil de pompe à chaleur
JP2016223740A (ja) * 2015-06-03 2016-12-28 株式会社コロナ ヒートポンプ冷温水機

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005147619A (ja) * 2003-11-19 2005-06-09 Matsushita Electric Ind Co Ltd ヒートポンプ装置
JP2008151400A (ja) * 2006-12-18 2008-07-03 Mitsubishi Electric Corp 給湯室外機及び給湯空気調和機
JP2012052684A (ja) * 2010-08-31 2012-03-15 Panasonic Corp ヒートポンプ熱源機
JP2012137196A (ja) * 2010-12-24 2012-07-19 Noritz Corp ヒートポンプ式熱源機
JP2012163225A (ja) * 2011-02-03 2012-08-30 Mitsubishi Electric Corp ヒートポンプ給湯室外機
JP2013113450A (ja) * 2011-11-25 2013-06-10 Mitsubishi Electric Corp ヒートポンプ給湯室外機
JP2014020585A (ja) * 2012-07-12 2014-02-03 Panasonic Corp 熱交換器ユニットおよびそれを備えたヒートポンプ温水暖房装置
JP2015045425A (ja) * 2013-08-27 2015-03-12 株式会社ノーリツ ヒートポンプ給湯装置
WO2016181451A1 (fr) * 2015-05-11 2016-11-17 三菱電機株式会社 Appareil de pompe à chaleur
JP2016223740A (ja) * 2015-06-03 2016-12-28 株式会社コロナ ヒートポンプ冷温水機

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