US20140216094A1 - Outdoor unit - Google Patents
Outdoor unit Download PDFInfo
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- US20140216094A1 US20140216094A1 US14/342,130 US201214342130A US2014216094A1 US 20140216094 A1 US20140216094 A1 US 20140216094A1 US 201214342130 A US201214342130 A US 201214342130A US 2014216094 A1 US2014216094 A1 US 2014216094A1
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- Prior art keywords
- prevention member
- scatter prevention
- sound
- sound absorbing
- absorbing material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0033—Pulsation and noise damping means with encapsulations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/08—Compressors specially adapted for separate outdoor units
- F24F1/12—Vibration or noise prevention thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/40—Vibration or noise prevention at outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/242—Sound-absorbing material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compressor (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Exhaust Silencers (AREA)
Abstract
An outdoor unit includes: a compressor, and a sound deadening material having sound deadening properties. The sound deadening material includes a first sound absorbing material made of glass fibers, a first scatter prevention member which prevents scattering of the glass fiber from one principal surface of the first sound absorbing material by covering the one principal surface, and a second scatter prevention member which prevents scattering of the glass fiber from the other the other principal surface of the first sound absorbing material by covering the other principal surface. The first scatter prevention member is a sound absorbing material made of fibers having high fiber strength than the glass fibers. The second scatter prevention member is a sound insulating material. The sound deadening material is wound around the compressor so that the first scatter prevention member faces the compressor.
Description
- The present invention relates to an outdoor unit including a compressor, and a sound deadening material wound around the compressor.
- Conventionally, known are refrigerating equipment such as an air conditioning unit, a refrigerating unit, a freezing unit, and a heat pump water heater which include a refrigerant circuit. An outdoor unit in this kind of refrigerating equipment comprises a compressor for compressing the refrigerant. Noise is generated from this compressor during the operation of the compressor due to the vibration of the internal motor or the like. Thus, conventionally, as soundproof measures, a sound absorbing material, which is made of glass fibers and has superior sound deadening properties, is wound around the compressor used in the outdoor unit.
- For example,
Patent Documents 1 and 2 disclose an outdoor unit including a compressor provided to a refrigerant circuit, and a sound absorbing material made of glass fibers wound around the compressor. - When sound comes into contact with a fiber bundle, the vibrational energy of the sound is converted into thermal energy, which is generated mainly as a result of the friction with fibers, due to the vibration of the air layers formed between the fibers, and then absorbed by the fiber bundle. Generally speaking, since the fiber diameter of the glass fibers is small, the air layers formed between the fibers of the fiber bundle made of glass fibers are extremely fine. Thus, since a fiber bundle made of glass fibers is a material that can efficiently absorb acoustic energy; that is, a material having a high sound absorption coefficient and superior sound deadening properties, it is widely used as a sound deadening material.
- As described above, while a fiber bundle made of glass fibers has superior sound deadening properties, it is weak to external pressure. Thus, when the sound absorbing material made of glass fibers is wound around the compressor, there is a possibility that the glass fibers will break and the broken fibers will scatter. Moreover, during the operation of the compressor, there is a possibility that the fibers will become crushed as a result of the fibers rubbing against the surface of the vibrating compressor, and the powder thereof will scatter.
- Patent Document 1: Japanese Patent Application Publication No. 2009-036248
- Patent Document 2: Japanese Patent Application Publication No. 2009-293870
- An object of the present invention is to provide an outdoor unit capable of inhibiting the scattering of fibers of the glass fiber sound absorbing material during the winding of the glass fiber sound absorbing material around the compressor and during the operation of the compressor.
- The outdoor unit according to one aspect of the present invention comprises a compressor provided to a refrigerant circuit, and a sound deadening material having sound deadening properties, wherein the sound deadening material includes a first sound absorbing material made of glass fibers, a first scatter prevention member provided so as to cover one principal surface of the first sound absorbing material, and a second scatter prevention member provided so as to cover the other principal surface of the first sound absorbing material, the first scatter prevention member is a sound absorbing material made of fibers having higher fiber strength than the glass fibers, the second scatter prevention member is a sound insulating material. and the first scatter prevention member is wound around the compressor so as to face the compressor.
- Moreover, the outdoor unit according to another aspect of the present invention comprises a compressor provided to a refrigerant circuit, and a sound deadening material having sound deadening properties, wherein the sound deadening material includes a first sound absorbing material made of glass fibers, a first scatter prevention member provided so as to cover one principal surface of the first sound absorbing material, and a second scatter prevention member provided so as to cover another principal surface of the first sound absorbing material, the first scatter prevention member and the second scatter prevention member are both sound absorbing materials having higher fiber strength than the glass fibers and are each made of fibers of the same material, and the first scatter prevention member or the second scatter prevention member is wound around the compressor so as to face the compressor.
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FIG. 1 is a plan view of the compressor around which is wound the sound deadening material of the first embodiment of the present invention. -
FIG. 2 is a perspective view of the sound deadening material shown inFIG. 1 . -
FIG. 3 is a perspective view of the sound deadening material of the second embodiment of the present invention. -
FIG. 4 is a perspective view of a modified example of the sound deadening material of the second embodiment. - The preferred embodiments of the present invention are now explained with reference to the appended drawings.
- As shown in
FIG. 1 , the outdoor unit of this embodiment includes a compressor 1 provided to a refrigerant circuit, anaccumulator 2 as a low pressure-side vessel disposed near the compressor 1, and a sounddeadening material 10 for preventing the noise, which is generated from the compressor 1 during the operation of the compressor 1, from leaking outside the outdoor unit. The outdoor unit additionally includes a heat exchanger for causing a heat exchange of the refrigerant discharged from the compressor 1 and the outside air, an expansion mechanism for expanding the refrigerant that was contracted by the heat exchanger, as well as a fan, controller, and so on. Note that the illustration of these components is omitted. - The compressor 1 is used for compressing the refrigerant that was sucked in from the upstream side in the refrigerant circuit to obtain a high temperature, high pressure refrigerant, and discharging the obtained refrigerant to the downstream side in the refrigerant circuit. The compressor 1 internally houses a motor, a compressing mechanism and the like within an elongated cylindrical pressure vessel. The compressor 1 is installed on a base plate frame of a casing which configures the outdoor unit.
- The
accumulator 2 is provided on the refrigerant suction side; that is, the low pressure side, of the compressor 1 in the refrigerant circuit, and is used for isolating the liquid from the refrigerant prior to being introduced to the compressor 1, and internally storing the isolated liquid. Theaccumulator 2 is configured from an elongated cylindrical airtight container, and is fixed to the compressor I with ametal bracket 3. In other words, thebracket 3 is fixed to the lateral face part of the airtight container, and theaccumulator 2 is fixed to the compressor 1 as a result of thebracket 3 being mounted at a position of an intermediate height on the lateral face side of the pressure vessel of the compressor 1. - As shown in
FIG. 2 , the sounddeadening material 10 includes a firstsound absorbing material 11 made of glass fibers that yield superior sound absorbency, a firstscatter prevention member 12 provided so as to cover oneprincipal surface 11 a of the firstsound absorbing material 11, and a secondscatter prevention member 13 provided so as to cover the otherprincipal surface 11 b of the firstsound absorbing material 11, and takes on a rectangular shape that is long in one direction. Note that the firstsound absorbing material 11 and the firstscatter prevention member 12 are connected via suitable means, and the firstsound absorbing material 11 and the secondscatter prevention member 13 are also connected via suitable means. In addition, the sounddeadening material 10 is wound around the compressor 1 so that the firstscatter prevention member 12 faces the compressor 1 as shown inFIG. 1 . Here, the sounddeadening material 10 is wound so that both end parts in the longitudinal direction thereof overlap on the side of the compressor 1. In addition, the overlapped parts are mutually fixed with a fixing member that is provided to both end parts in the longitudinal direction thereof on the surface of the secondscatter prevention member 13. Note that, in this embodiment, a culture rivet 14 and a string (not shown) to be placed therearound are used as the fixing member. Moreover, in this embodiment, the sounddeadening material 10 is wound around the outer periphery of the compressor 1 and theaccumulator 2 so as to collectively encircle the compressor 1 and theaccumulator 2. - The first
sound absorbing material 11 is a sound absorbing material made of glass fibers, and takes on a rectangular shape that is long in one direction. In this embodiment, ultrafine glass fibers having an average fiber diameter of 0.4 to 3.5 μm are used. With these ultrafine glass fibers, the air layers between the fibers are finer in comparison to standard glass wools having an average fiber diameter of 7 μm. Thus, these ultrafine glass fibers yield sound absorbency that is superior to standard glass wools. - The first
scatter prevention member 12 is used for preventing the scattering of glass fibers from the oneprincipal surface 11 a of the firstsound absorbing material 11, and is provided so as to cover the oneprincipal surface 11 a of the firstsound absorbing material 11. Used as the firstscatter prevention member 12 is a sound absorbing material made of fibers having higher fiber strength than the glass fibers of the firstsound absorbing material 11. As this kind of sound absorbing material, used may be felt, rock wool sound absorbing material, polyester fiber sound absorbing material, aluminum fiber sintered sound absorbing material and so on, but felt is used in this embodiment. The term “fiber strength” as used herein particularly refers to the index of the bursting strength of the fibers. The bursting strength is the resistive strength when the fibers break through the knitted fabric, and in experiments, it is the strength of a pressurized rubber film breaking through the fiber test piece. When external force such as stretching, compressing, bending or twisting works on a brittle material such as glass fibers, the fibers tend to scatter as a result of the fibers becoming ruptured. The degree of such fiber scattering is substituted with the bursting strength of fibers. - The second
scatter prevention member 13 is configured the same as the firstscatter prevention member 12 excluding the point that it is provided to the otherprincipal surface 11 b of the firstsound absorbing material 11. Thus, the explanation of this secondscatter prevention member 13 is omitted. - As explained above, with the
sound deadening material 10 used in the outdoor unit of this embodiment, bothprincipal surfaces sound absorbing material 11 made of glass fibers are covered by thescatter prevention members deadening material 10, it is possible to inhibit the scattering of glass fibers during the winding of thesound deadening material 10 around the compressor 1 and during the operation of the compressor 1 with the sounddeadening material 10 wrapped therearound. In addition, since thescatter prevention members deadening material 10 can be improved. - Here, as described above, the sound absorbing material made of glass fibers is characterized in having high sound absorbency since it comprises fine air layers between the fibers. Since the air layers are fine, moisture can be easily retained in the air layers. Thus, the sound absorbing material made of glass fibers is characterized in having high water absorbability. In addition, since moisture that is once retained in the air layers between the fiber is not easily discharged, the sound absorbing material made of glass fibers is also characterized in having high water retentivity. Accordingly, when the glass fiber sound absorbing material is in contact with the compressor surface as shown in Patent Document 1 and the like, moisture may become accumulated on the compressor surface as a result of such moisture being retained between the glass fibers, and this may result in the corrosion of the compressor surface.
- Meanwhile, with the
sound deadening material 10 of this embodiment, the oneprincipal surface 11 a of the firstsound absorbing material 11 on the side of the compressor 1, in a state of being wound around the compressor 1, is covered with felt which has a lower water absorption rate than the glass fibers of the firstsound absorbing material 11. Thus, even if thesound deadening material 10 comes into contact with the surface of the compressor 1, it is possible to prevent the corrosion of surface of the compressor 1. -
FIG. 3 shows thesound deadening material 10 of the second embodiment of the present invention. Note that, in the second embodiment, only the portions that differ from the first embodiment will be explained, and the explanation of configurations, operations and effects that are the same as the first embodiment is omitted. - As shown in
FIG. 3 , thesound deadening material 10 in this embodiment includes a pouchedscatter prevention member 12 a which takes on a pouched shape which covers the entire surface of the firstsound absorbing material 11 made of glass fibers. In other words, the pouchedscatter prevention member 12 a covers oneprincipal surface 11 a, the otherprincipal surface 11 b, alower surface 11 c, both end faces 11 d and anupper surface 11 e of the firstsound absorbing material 11 which are not visible inFIG. 3 . This pouchedscatter prevention member 12 a specifically includes a firstscatter prevention member 12 which covers the oneprincipal surface 11 a of the firstsound absorbing material 11, a secondscatter prevention member 13 which covers the otherprincipal surface 11 b, a lowersurface covering member 12 c which covers thelower surface 11 c, both endface covering members 12 d which cover the both end faces 11 d, and an uppersurface covering member 12 e which covers theupper surface 11 e. In addition, used as the pouchedscatter prevention member 12 a is a sound absorbing material made of felt having higher fiber strength than the glass fibers. Thesound deadening material 10 in this embodiment is formed, for example, as follows. In other words, the portions of the pouchedscatter prevention member 12 a excluding the uppersurface covering member 12 e are formed integrally in advance, the firstsound absorbing material 11 is inserted therein, and the uppersurface covering member 12 e is thereafter connected to the portions so as to cover theupper surface 11 e of the firstsound absorbing material 11. - As described above, with this embodiment, in addition to the configuration of the first embodiment in which both
principal surfaces sound absorbing material 11 are covered by thescatter prevention members lower surface 11 c of the firstsound absorbing material 11 is covered by the lowersurface covering member 12 c. Thus, it is possible to prevent the scattering of glass fibers and sound leakage from thelower surface 11 c. In addition, since the firstscatter prevention member 12, the secondscatter prevention member 13 and the lowersurface covering member 12 c are formed integrally, thesound deadening material 10 can be manufactured easily and the productivity can be improved. - Moreover, since the both end faces 11 d of the first
sound absorbing material 11 are covered by the both endface covering members 12 d, it is possible to prevent the scattering of glass fibers and sound leakage from the both end faces 11 d. In addition, since the firstscatter prevention member 12, the secondscatter prevention member 13 and the both endface covering members 12 d are formed integrally, thesound deadening material 10 can be manufactured easily and the productivity can be improved. - Incidentally, a heat exchanger, an
accumulator 2 and the like are disposed within a casing of the outdoor unit, and there are cases where the condensed water generated on the surfaces thereof flows downward and accumulates on the base plate frame. Then, as described above, since the sound absorbing material made of glass fibers has high water absorbability and water retentivity, when the water accumulated on the base plate frame reaches thelower surface 11 c of the firstsound absorbing material 11 made of glass fibers, the water is absorbed by the firstsound absorbing material 11 and retained in the firstsound absorbing material 11. Consequently, the firstsound absorbing material 11 can no longer absorb acoustic energy since the air layers thereof will be filled with moisture, and the sound absorbenecy of the firstsound absorbing material 11 will deteriorate. - Meanwhile, with the
sound deadening material 10 of this embodiment, the lower part of the firstsound absorbing material 11; that is, thelower surface 11 c of the firstsound absorbing material 11 and a portion of a predetermined size from thelower surface 11 c of the both end faces 11 d of the firstsound absorbing material 11 are covered by felt, which has a lower water absorption rate than glass fibers. Thus, according to thissound deadening material 10, it is possible to inhibit the absorption of water from the lower part of the firstsound absorbing material 11 in a state of being wound around the compressor 1. - Note that, in this second embodiment, while a configuration of covering the entire surface of the first
sound absorbing material 11 with the pouchedscatter prevention member 12 a made of felt was explained, as shown inFIG. 4 , the both endface covering members 12 d for covering the both end faces 11 d of the firstsound absorbing material 11 may be omitted according to the degree of scattering of the glass fibers from the both end faces 11 d. Otherwise, while not shown, the lowersurface covering member 12 c for covering thelower surface 11 c of the firstsound absorbing material 11 may be omitted according to the level of possibility of scattering or water absorption from thelower surface 11 c. Moreover, the pouchedscatter prevention member 12 a may be opened at the portion corresponding to theupper surface 11 e of the firstsound absorbing material 11, or theupper surface 11 e of the firstsound absorbing material 11 may be covered with a member that is made of a material that is different from the sound absorbing material made of fibers having higher fiber strength than the glass fibers. In addition, the firstscatter prevention member 12, the secondscatter prevention member 13, the lowersurface covering member 12 c, the both endface covering members 12 d and the uppersurface covering member 12 e may be formed integrally based on suitable combinations. - In the third embodiment also, only the portions that differ from the first embodiment will be explained, and the explanation of configurations, operations and effects that are the same as the first embodiment is omitted.
- In this embodiment, a sound insulating material is used as the second
scatter prevention member 13. Note that a rubber member is used as the sound insulating material in this embodiment. - As described above, in this embodiment, the first
scatter prevention member 12 is a sound absorbing material made of fibers having higher fiber strength than glass fibers, the secondscatter prevention member 13 is a sound insulating material, and the firstscatter prevention member 12 is wound around the compressor 1 so as to face the compressor 1. Thus, among the noises generated from the compressor 1, the sound that passed through the firstscatter prevention member 12 and the firstsound absorbing material 11 is reflected off the secondscatter prevention member 13 and is once again returned toward the firstsound absorbing material 11 and the firstscatter prevention member 12, and absorbed by the firstsound absorbing material 11 and the firstscatter prevention member 12. Thus, according to thesound deadening material 10 of this embodiment, it is possible to further improve the sound deadening performance. - In addition, with this embodiment, since the outer periphery of the
sound deadening material 10 is rubber, the impact from the contact of the compressor 1 and other members caused by the vibration, for example, during the transport of the outdoor unit is absorbed by the rubber, and damage to the compressor 1 is thereby prevented. - Moreover, in this third embodiment also, as with the second embodiment described above, it is possible to provide the lower
surface covering member 12 c for covering thelower surface 11 c of the firstsound absorbing material 11, the both endface covering members 12 d for covering the both end faces 11 d, and the uppersurface covering member 12 e for covering theupper surface 11 e. In addition, the firstscatter prevention member 12, the secondscatter prevention member 13, the lowersurface covering member 12 c, the both endface covering members 12 d and the uppersurface covering member 12 e may be formed integrally based on suitable combinations. - Note that the embodiments disclosed above are merely illustrative in all respects, and should not be considered as being restrictive. The scope of the present invention is indicated by the scope of claims, and not based on the explanation of the foregoing embodiments, and all modifications within the equal meaning and scope as the scope of claims are covered by the present invention.
- For example, in each of the foregoing embodiments, explained was a case of where a sound absorbing material or a sound insulating material made of fibers having higher fiber strength than glass fibers is used as the respective
scatter prevention members principal surfaces sound absorbing material 11. These scatter prevention members will suffice so as long as they can prevent the scattering of glass fibers. Thus, the one or both members for covering bothprincipal surfaces sound absorbing material 11 are not limited to a sound absorbing material or a sound insulating material made of fibers, and a flame-retardant thermal insulating material or the like may also be used. - Moreover, in the foregoing embodiments, while explained was a case of winding the
sound deadening material 10 around the periphery of the compressor 1 and theaccumulator 2 so as to collectively encircle the compressor 1 and theaccumulator 2, the configuration may also be such that only the compressor 1 is wound by thesound deadening material 10. - Moreover, in the foregoing embodiments, while explained was a case of winding the
sound deadening material 10 so that the secondscatter prevention member 13 on one end and the firstscatter prevention member 12 on the other end of thesound deadening material 10 overlap on the side of the compressor 1, thesound deadening material 10 may also be wound so that the overlap occurs on the side of theaccumulator 2. - Moreover, in the foregoing embodiments, while explained was a case of winding the
sound deadening material 10 so that both end parts in the longitudinal direction thereof overlap, thesound deadening material 10 may also be wound such that the end faces of both end parts in the longitudinal direction thereof are mutually connected. - Moreover, the fixing member is not limited to the
culture rivet 14 and string, and also used may be a hook-and-loop fastener provided at a position capable of maintaining the wound state of thesound deadening material 10, or a band or the like which sandwiches the overallsound deadening material 10 from the outer periphery of thesound deadening material 10 wound around the compressor 1. - The respective embodiments are summarized below.
- (1) The outdoor unit of the foregoing embodiment comprises a compressor 1 provided to a refrigerant circuit, and a
sound deadening material 10 having sound deadening properties. Thesound deadening material 10 includes a firstsound absorbing material 11 made of glass fibers, a firstscatter prevention member 12 provided so as to cover oneprincipal surface 11 a of the firstsound absorbing material 11, and a secondscatter prevention member 13 provided so as to cover the otherprincipal surface 11 b of the firstsound absorbing material 11. The firstscatter prevention member 12 and the secondscatter prevention member 13 are both sound absorbing materials having higher fiber strength than the glass fibers and are each made of fibers of the same material. The firstscatter prevention member 12 or the secondscatter prevention member 13 is wound around the compressor 1 so as to face the compressor 1. - The
sound deadening material 10 used in the outdoor unit of this embodiment is covered with thescatter prevention members principal surfaces sound absorbing material 11 made of glass fibers prevent the scattering of glass fibers. Thus, according to thissound deadening material 10, it is possible to inhibit the scattering of glass fibers during the winding of thesound deadening material 10 around the compressor 1 and during the operation of the compressor 1 with thesound deadening material 10 wrapped therearound. In addition, since thescatter prevention members sound deadening material 10 can be improved. - (2) The
sound deadening material 10 additionally includes a lowersurface covering member 12 c which is a member made of the same material as the firstscatter prevention member 12 and the secondscatter prevention member 13 and covers alower surface 11 c of the firstsound absorbing material 11. - According to the
sound deadening material 10 used in the outdoor unit of this embodiment, it is possible to prevent the scattering of glass fibers and sound leakage from thelower surface 11 c of the firstsound absorbing material 11. - (3) In addition, since the first
scatter prevention member 12, the secondscatter prevention member 13 and the lowersurface covering member 12 c are formed integrally, thesound deadening material 10 can be manufactured easily and the productivity can be improved. - (4) Moreover, the
sound deadening material 10 additionally includes both endface covering members 12 d which are members made of the same material as the firstscatter prevention member 12 and the secondscatter prevention member 13 and cover both end faces 11 d of the firstsound absorbing material 11. - Thus, it is possible to prevent the scattering of glass fibers and sound leakage from the both end faces 11 d of the first
sound absorbing material 11. - (5) In addition, since the first
scatter prevention member 12, the secondscatter prevention member 13 and the both endface covering members 12 d are formed integrally, thesound deadening material 10 can be manufactured easily and the productivity can be improved. - (6) The outdoor unit of the foregoing embodiment comprises a compressor 1 provided to a refrigerant circuit, and a
sound deadening material 10 having sound deadening properties. Thesound deadening material 10 includes a firstsound absorbing material 11 made of glass fibers, a firstscatter prevention member 12 provided so as to cover oneprincipal surface 11 a of the firstsound absorbing material 11, and a secondscatter prevention member 13 provided so as to cover the otherprincipal surface 11 b of the firstsound absorbing material 11. The firstscatter prevention member 12 is a sound absorbing material made of fibers having higher fiber strength than the glass fibers. The secondscatter prevention member 13 is a sound insulating material. The firstscatter prevention member 12 is wound around the compressor 1 so as to face the compressor 1. - Thus, among the noises generated from the compressor 1, the sound that passed through the first
scatter prevention member 12 and the firstsound absorbing material 11 is reflected off the secondscatter prevention member 13 and is once again returned toward the firstsound absorbing material 11 and the firstscatter prevention member 12, and absorbed by the firstsound absorbing material 11 and the firstscatter prevention member 12. Thus, according to thesound deadening material 10 used in the outdoor unit of this embodiment, it is possible to further improve the sound deadening performance. -
- 1 Compressor
- 2 Accumulator (low pressure-side vessel)
- 3 Bracket
- 10 Sound insulating material
- 11 First sound absorbing material
- 11 a One principal surface
- 11 b Other principal surface
- 11 c Lower surface
- 11 d End face
- 11 e Upper surface
- 12 First scatter prevention member
- 12 a Pouched scatter prevention member
- 12 c Lower surface covering member
- 12 d End face covering member
- 12 e Upper surface covering member
- 13 Second scatter prevention member
- 14 Culture rivet
Claims (9)
1-6. (canceled)
7. An outdoor unit, comprising:
a compressor provided to a refrigerant circuit; and
a sound deadening material having sound deadening properties, wherein
the sound deadening material includes a first sound absorbing material made of glass fibers, a first scatter prevention member which prevents scattering of the glass fiber from one principal surface of the first sound absorbing material by covering the one principal surface, and a second scatter prevention member which prevents scattering of the glass fiber from the other principal surface of the first sound absorbing material by covering the other principal surface,
the first scatter prevention member is a sound absorbing material made of fibers having higher fiber strength than the glass fibers,
the second scatter prevention member is a sound insulating material, and
the first scatter prevention member is wound around the compressor so as to face the compressor.
8. An outdoor unit, comprising:
a compressor provided to a refrigerant circuit; and
a sound deadening material having sound deadening properties, wherein
the sound deadening material includes a first sound absorbing material made of glass fibers, a first scatter prevention member which prevents scattering of the glass fiber from one principal surface of the first sound absorbing material by covering the one principal surface, and a second scatter prevention member which prevents scattering of the glass fiber from the other principal surface of the first sound absorbing material by covering the other principal surface,
the first scatter prevention member and the second scatter prevention member are both sound absorbing materials having higher fiber strength than the glass fibers and are each made of fibers of the same material, and
the first scatter prevention member or the second scatter prevention member is wound around the compressor so as to face the compressor.
9. The outdoor unit according to claim 8 , wherein
the sound deadening material additionally includes a lower surface covering member which is a member made of the same material as the first scatter prevention member and the second scatter prevention member and covers a lower surface of the first sound absorbing material.
10. The outdoor unit according to claim 9 , wherein
the first scatter prevention member the second scatter prevention member and the lower surface covering member are formed integrally.
11. The outdoor unit according to claim 8 , wherein
the sound deadening material additionally includes both end face covering members which are members made of the same material as the first scatter prevention member and the second scatter prevention member and cover both end faces of the first sound absorbing material.
12. The outdoor unit according to claim 11 , wherein
the first scatter prevention member, the second scatter prevention member and the both end face covering members are formed integrally.
13. The outdoor unit according to claim 9 , wherein
the sound deadening material additionally includes both end face covering members which are members made from the same material as the first scatter prevention member and the second scatter prevention member and cover both end faces of the first sound absorbing material.
14. The outdoor unit according to claim 10 , wherein
the sound deadening material additionally includes both end face covering members which are members made from the same material as the first scatter prevention member and the second scatter prevention member and cover both end faces of the first sound absorbing material.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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JP2011-191510 | 2011-09-02 | ||
JP2011191510A JP5395136B2 (en) | 2011-09-02 | 2011-09-02 | Outdoor unit |
PCT/JP2012/004807 WO2013031087A1 (en) | 2011-09-02 | 2012-07-27 | Outdoor unit |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140216094A1 true US20140216094A1 (en) | 2014-08-07 |
Family
ID=47755621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/342,130 Abandoned US20140216094A1 (en) | 2011-09-02 | 2012-07-27 | Outdoor unit |
Country Status (7)
Country | Link |
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US (1) | US20140216094A1 (en) |
EP (1) | EP2754969A1 (en) |
JP (1) | JP5395136B2 (en) |
KR (1) | KR101404362B1 (en) |
CN (1) | CN103765110B (en) |
AU (1) | AU2012303581A1 (en) |
WO (1) | WO2013031087A1 (en) |
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CN110159510A (en) * | 2019-05-16 | 2019-08-23 | 珠海格力电器股份有限公司 | Compressor assembly and air-conditioner set equipped with it |
US20190376499A1 (en) * | 2018-06-07 | 2019-12-12 | Johnson Controls Technology Company | Relative vibration damping system for hvac systems |
US20200232660A1 (en) * | 2017-10-25 | 2020-07-23 | Mitsubishi Electric Corporation | Unit for refrigeration cycle device, refrigeration cycle device, and electric apparatus |
US11802696B2 (en) | 2019-08-01 | 2023-10-31 | Mitsubishi Electric Corporation | Outdoor unit for air-conditioning apparatus and air-conditioning apparatus |
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KR102228854B1 (en) | 2013-12-27 | 2021-03-17 | 엘지전자 주식회사 | Reciprocating compressor |
JP2016023609A (en) * | 2014-07-23 | 2016-02-08 | 三菱重工業株式会社 | Compressor system and air conditioner with compressor system |
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CN105485793B (en) * | 2015-12-25 | 2019-06-04 | 广东美的制冷设备有限公司 | Compressor assembly, outdoor unit and air conditioner |
CN105423446B (en) * | 2015-12-25 | 2018-09-04 | 广东美的制冷设备有限公司 | Air conditioner noise reduction components, compressor assembly, outdoor unit and air conditioner |
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- 2012-07-27 WO PCT/JP2012/004807 patent/WO2013031087A1/en active Application Filing
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US20200232660A1 (en) * | 2017-10-25 | 2020-07-23 | Mitsubishi Electric Corporation | Unit for refrigeration cycle device, refrigeration cycle device, and electric apparatus |
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Also Published As
Publication number | Publication date |
---|---|
CN103765110B (en) | 2016-01-20 |
KR101404362B1 (en) | 2014-06-09 |
EP2754969A1 (en) | 2014-07-16 |
AU2012303581A1 (en) | 2014-03-20 |
JP5395136B2 (en) | 2014-01-22 |
WO2013031087A1 (en) | 2013-03-07 |
KR20140044401A (en) | 2014-04-14 |
JP2013053792A (en) | 2013-03-21 |
CN103765110A (en) | 2014-04-30 |
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