WO2006082779A1 - 空気調和装置の室外ユニット - Google Patents
空気調和装置の室外ユニット Download PDFInfo
- Publication number
- WO2006082779A1 WO2006082779A1 PCT/JP2006/301439 JP2006301439W WO2006082779A1 WO 2006082779 A1 WO2006082779 A1 WO 2006082779A1 JP 2006301439 W JP2006301439 W JP 2006301439W WO 2006082779 A1 WO2006082779 A1 WO 2006082779A1
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- WIPO (PCT)
- Prior art keywords
- unit
- plate
- outdoor
- electrical component
- pipe
- Prior art date
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Classifications
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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
- F24F1/46—Component arrangements in separate outdoor units
- F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
- F24F1/54—Inlet and outlet arranged on opposite sides
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
-
- 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
- F24F1/20—Electric components for separate outdoor units
- F24F1/22—Arrangement or mounting thereof
-
- 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
- F24F1/20—Electric components for separate outdoor units
- F24F1/24—Cooling of electric components
-
- 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
- F24F1/46—Component arrangements in separate outdoor units
-
- 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
- F24F13/20—Casings or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
- F25B31/006—Cooling of compressor or motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
- F24F13/20—Casings or covers
- F24F2013/207—Casings or covers with control knobs; Mounting controlling members or control units therein
-
- 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
- F25B2400/053—Compression system with heat exchange between particular parts of the system between the storage receiver and another part of the system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Definitions
- the present invention has a structure in which an internal unit of an outdoor unit of an air conditioner, in particular, a substantially rectangular parallelepiped box-shaped casing is divided into a blower chamber and a machine chamber by a partition plate extending in the vertical direction.
- the present invention relates to an outdoor unit of an air conditioner that constitutes a vapor compression refrigerant circuit by being connected to an indoor unit via a refrigerant communication pipe.
- an outdoor unit of a conventional air conditioner a structure in which an inner space of a substantially rectangular parallelepiped box-shaped casing is divided into a fan room and a machine room by a partition plate extending in a vertical direction (a so-called trunk type structure)
- a so-called trunk type structure a structure in which an inner space of a substantially rectangular parallelepiped box-shaped casing is divided into a fan room and a machine room by a partition plate extending in a vertical direction.
- compressor power inverter control for example, an inverter in which an inverter control element such as a diode transistor is mounted in addition to a control board for controlling the operation of the outdoor unit as an electrical component. Substrate force S is also provided.
- the inverter control element In an outdoor unit having a trunk type structure equipped with such an inverter-controlled compressor, the inverter control element generates heat during operation of the apparatus. Therefore, a radiating fin for cooling the inverter control element on the back of the inverter board A structure is employed in which the heat dissipating fins are projected to the partition plate force blower chamber side (see, for example, Patent Document 1).
- Patent Document 1 Japanese Patent Laid-Open No. 9-236286
- the entire unit is required to be compact. For this reason, it is necessary to make effective use of the space in the casing, as well as research and development to reduce the individual sizes of the various devices that make up the outdoor unit.
- the conventional trunk-type outdoor unit described above employs a structure in which the heat dissipating fins for cooling the inverter control element are projected to the partition plate force blower chamber side. This is one of the reasons why it is restricted and effective use of the space in the machine room cannot be promoted.
- An object of the present invention is to provide a cooling structure for an inverter control element that can eliminate restrictions on the arrangement of the inverter board in an outdoor unit having a trunk structure.
- the outdoor unit of the air conditioner according to the first invention has a structure in which the internal space of the substantially rectangular parallelepiped box-shaped casing is divided into a blower chamber and a machine chamber by a partition plate extending in the vertical direction.
- An outdoor unit of an air conditioner that constitutes a vapor compression refrigerant circuit by being connected to an indoor unit via a refrigerant communication pipe, and an outdoor heat exchanger and an outdoor fan disposed in the fan room And a compressor disposed in the machine room, refrigerant circuit components, and an inverter board.
- the refrigerant circuit components are arranged in the machine room and constitute a refrigerant circuit together with the outdoor heat exchanger and the compressor.
- the inverter board is placed in the machine room, and the inverter control element is mounted.
- the inverter board is attached to any one of the refrigerant circuit component, the inner surface of the outer plate of the casing that contacts the refrigerant circuit component, and the side of the machine room of the partition plate that contacts the refrigerant circuit component.
- the inverter board is attached to the refrigerant circuit component that the refrigerant flows through, the inner surface of the casing outer plate that the refrigerant circuit component contacts, or the partition plate that the refrigerant circuit component contacts. Since it has a cooling structure that dissipates the exhaust heat generated by the inverter control element to the refrigerant flowing in the refrigerant circuit by installing it on either side of the machine room, the partition plate force is similar to that of conventional outdoor units.
- the radiation fin protruding toward the chamber can be omitted. As a result, the degree of freedom of the placement of the inverter board in the machine room is increased, so that the effective use of the space in the machine room is promoted, and it is possible to contribute to the compactness of the entire unit of the outdoor unit.
- the outdoor unit of the air conditioner according to the second invention is the outdoor unit of the air conditioner according to the first invention, wherein the refrigerant circuit component is a part through which the high-pressure refrigerant flows.
- the exhaust heat generated by the inverter control element can be dissipated to the high-pressure refrigerant.
- the outdoor unit of the air conditioner according to the third invention is the outdoor unit of the air conditioner according to the second invention, wherein the refrigerant circuit component is a high pressure connected to the liquid side of the outdoor heat exchanger. This is a receiver for temporarily storing the liquid refrigerant.
- the outdoor unit of the air conditioner according to the fourth invention is the outdoor unit of the air conditioner according to the second invention, wherein the refrigerant circuit component is a high pressure connected to the liquid side of the outdoor heat exchanger.
- This is a high-pressure plate pipe constituting a refrigerant pipe through which the liquid refrigerant flows.
- An outdoor unit of an air conditioner according to a fifth invention is the outdoor unit of the air conditioner according to the first invention, wherein the refrigerant circuit component is an accumulator connected to the suction side of the compressor.
- the exhaust heat generated by the inverter control element can be dissipated to the low-pressure refrigerant.
- An outdoor unit of an air conditioner according to a sixth aspect of the present invention is the outdoor unit of the air conditioner according to the first aspect of the invention, wherein the refrigerant circuit component is disposed in the machine room and constitutes a suction pipe of the compressor The suction plate piping.
- the exhaust heat generated by the inverter control element can be dissipated to the low-pressure refrigerant.
- An outdoor unit of an air conditioner according to a seventh aspect of the present invention is the outdoor unit of the air conditioner according to the fourth or sixth aspect of the invention, wherein the inverter board is between the compressor and the bottom plate of the casing. It is arranged in
- the compressor is placed on the upper side of the inverter board while adopting a structure in which the inverter board is attached to the low pressure plate pipe or the high pressure plate pipe. Effective use can be promoted.
- An outdoor unit of an air conditioner according to an eighth aspect of the present invention is the outdoor unit of an air conditioner according to any of the first to sixth aspects of the invention, wherein the inverter board is formed on the inner surface of the bottom plate constituting the outer plate. They are in contact with each other and are arranged between the compressor and the bottom plate of the casing.
- the compressor is arranged on the upper side of the inverter board while adopting the structure in which the inverter board is brought into contact with the inner surface of the bottom board, so that the effective use of the space near the bottom board can be promoted. it can.
- An outdoor unit of an air conditioner according to a ninth invention is the outdoor unit of the air conditioner according to any of the first to eighth inventions, wherein the inverter board is detachably attached to the outer plate. ing.
- This outdoor unit of the air conditioner employs a structure in which the inverter board is detachably attached to the outer plate while adopting a structure in which the inverter board is brought into contact with the inner surface of the outer plate, thus impairing workability during maintenance. It becomes difficult to be.
- An outdoor unit of an air conditioner according to a tenth aspect of the invention is the outdoor unit of the air conditioner according to any of the first to seventh aspects of the invention, wherein the refrigerant circuit component and the refrigerant circuit component are in contact with the casing.
- a heat accumulator is provided on either the inner surface of the outer plate and the side of the machine room of the cutting plate that contacts the refrigerant circuit components.
- the heat storage body In the outdoor unit of the air conditioner, when the heat storage body is provided in the refrigerant circuit component part to which the inverter board is attached, the heat storage body can be cooled by the refrigerant flowing in the refrigerant circuit, so that an inverter control element is generated. Dissipation of exhaust heat can be promoted, and the heat can be stored in the heat storage material as much as the power of the refrigerant circuit components, effectively dissipating the exhaust heat generated by the inverter control element after the equipment is shut down be able to.
- the heat storage material when the heat storage material is provided on the inner surface of the outer plate of the casing that contacts the refrigerant circuit components or on the side of the machine room of the partition plate, the heat storage body can be cooled by the outdoor air. Dissipation of generated waste heat can be promoted.
- An outdoor unit of an air conditioner according to an eleventh aspect of the invention is the outdoor unit of an air conditioner according to the tenth aspect of the invention, wherein the heat storage body is in contact with the inverter board.
- exhaust heat generated by the inverter control element can be dissipated to the heat storage body by bringing the inverter board into contact with the heat storage body.
- FIG. 1 is a schematic refrigerant circuit diagram of an air conditioner that employs an outdoor unit of an air conditioner according to a first embodiment of the present invention.
- ⁇ 2 It is a plan view of the outdoor unit (shown with refrigerant circuit components other than the top panel and receiver removed).
- ⁇ 3 It is a front view of the outdoor unit (shown with the refrigerant circuit components other than the left and right front plates and the receiver removed).
- FIG. 5 is a perspective view showing a state in which the second electrical component unit is attached to the receiver.
- FIG. 6 is a perspective view showing a state in which the second electrical component unit according to Modification 1 (when the second electrical component unit is attached to the high-pressure plate pipe) is attached to the high-pressure plate pipe. ⁇ 7] Figure 6 shows the high-pressure plate piping with the A direction force shown in Fig. 6 (partially broken).
- FIG. 8 Partial perspective view of outdoor unit that works on Modification 1 (when the second electrical component unit is placed along the bottom of the unit casing) at an oblique right front force (top plate, front plate, side plate, The refrigerant circuit components other than the high-pressure plate piping and the first electrical component unit are removed).
- FIG. 9 is a front view showing a structure in which the high-pressure plate pipe and the second electrical component unit are attached between the compressor and the bottom plate of the unit casing in the vertical direction.
- FIG. 10 is a plan view of an outdoor unit that works on Modification 2 (when a heat storage material is provided in the receiver) (shown with refrigerant circuit components other than the top panel and receiver removed).
- FIG. 11 is a view of the heat storage body also viewed in the direction B of FIG. 10 (partially broken).
- FIG. 12 is a perspective view showing a state in which the second electrical component fitting according to Modification 2 (when a heat storage material is provided in the high-pressure plate pipe) is attached to the high-pressure plate pipe.
- FIG. 13 is a view of the heat storage body as viewed from the direction C in FIG. 12 (partially cut away).
- FIG. 14 is a view showing a heat storage body that can be wound around a high-pressure plate pipe.
- FIG. 15 is a front view showing a structure in which the high-pressure plate piping, the heat storage material, and the second electrical component unit are attached between the compressor and the bottom plate of the unit casing.
- FIG. 16 is a schematic refrigerant circuit diagram of an air conditioner employing an outdoor unit of an air conditioner according to a second embodiment of the present invention.
- FIG. 18 is a front view of the outdoor unit (shown with the refrigerant circuit components other than the left and right front plates and the accumulator removed).
- FIG. 19 is a right side view of the outdoor unit (shown with the refrigerant circuit components other than the right front plate, the right side plate, and the accumulator removed).
- FIG. 20 is a perspective view showing a state in which the second electrical component unit is attached to the accumulator.
- FIG. 21 is a perspective view showing a state where the second electrical component unit is attached to the suction plate pipe according to Modification 1 (when the second electrical component unit is attached to the suction plate pipe).
- FIG. 22 is a view of the suction plate piping also viewed in the direction A in FIG. 21 (partially cut away).
- FIG. 23 Partial perspective view of the outdoor unit acting on Modification 1 (when the second electrical component unit is placed along the bottom surface of the unit casing) at an oblique right front force (top plate, front plate, side plate, The refrigerant circuit components other than the suction plate piping and the first electrical component unit are removed and shown).
- FIG. 25 is a perspective view showing a state in which a second electrical component unit that works in Modification 2 (when a heat storage material is provided in the accumulator) is attached to the accumulator.
- FIG. 26 is a view of the heat storage body also viewed in the direction B of FIG. 25 (partially cut away).
- FIG. 27 is a perspective view showing a state in which the second electrical component suit according to Modification 2 (when a heat storage material is provided in the suction plate pipe) is attached to the suction plate pipe.
- FIG. 28 is a view of the heat storage body as viewed from the direction C in FIG. 27 (partially cut away).
- FIG. 29 is a view showing a heat storage body that can be wound around the suction plate pipe.
- FIG. 30 is a front view showing a structure in which the suction plate pipe, the heat storage material, and the second electrical component unit are attached between the compressor and the bottom plate of the unit casing in the vertical direction.
- FIG. 31 is a schematic refrigerant circuit diagram of an air conditioner employing an outdoor unit of an air conditioner according to a third embodiment of the present invention.
- FIG. 32 is a plan view of the outdoor unit (shown with the top plate and refrigerant circuit components removed).
- FIG. 33 is a front view of the outdoor unit (shown with left and right front plates and refrigerant circuit components removed).
- FIG. 34 is a perspective view of the outdoor unit with the right diagonal front force also shown (illustrated with the top plate, front plate, side plate, refrigerant circuit component, and first electrical component unit removed).
- FIG. 35 is a plan view of an outdoor unit that works in Modification 1 (when the second electrical component unit is brought into contact with the inner surface of the side surface of the unit casing).
- FIG. 36 is a plan view showing a structure for attaching the second electrical component unit to the right side plate or the right front plate of the unit casing.
- FIG. 37 is a front view or a side view showing a structure for attaching the second electrical component unit to the right side plate or the right front plate of the unit casing.
- FIG. 38 is a right side view of the outdoor unit that works in Modification 1 (when the second electrical component unit is brought into contact with the inner surface of the front surface of the unit casing).
- FIG. 39 Partial perspective view of the outdoor unit acting on Modification 1 (when the second electrical component unit is in contact with the inner surface of the bottom surface of the unit casing) viewed from the right frontal force (top plate, front plate, side plate, cooling plate) The medium circuit components and the first electrical component unit are removed).
- FIG. 40 is a front view showing a structure in which the second electrical component unit is attached between the compressor and the bottom plate of the unit casing in the vertical direction.
- FIG. 41 is a plan view of an outdoor unit according to Modification 2 (when the accumulator is brought into contact with the side surface of the machine room of the partition plate) (illustrated with the refrigerant circuit components other than the top plate and the accumulator removed).
- FIG. 44 is a view (partially cut away) of the suction plate piping also viewed in the direction A in FIG.
- FIG. 45 is a plan view of an outdoor unit that works on Modification 2 (when the accumulator is brought into contact with the inner surface of the right side surface of the unit casing) (illustrated with the refrigerant circuit components other than the top plate and the accumulator removed). .
- FIG. 46 is a front view showing a structure in which the second electrical component unit is mounted between the compressor and the bottom plate of the unit casing in the vertical direction and an accumulator is installed in the vicinity thereof.
- FIG. 47 is a schematic refrigerant circuit diagram of an air conditioner employing an outdoor unit of an air conditioner according to a fourth embodiment of the present invention.
- FIG. 50 is a perspective view of the outdoor unit with the right diagonal front force (shown with the top plate, front plate, side plate, refrigerant circuit components, and first electrical component unit removed).
- FIG. 51 is a view of the heat storage body in which the direction A force in FIGS. 48, 52 and 53 is also seen (partially cut away).
- FIG. 52 is a plan view of an outdoor unit that is applied to Modification 1 (when a heat storage body is brought into contact with the inner surface of the side surface of the unit casing).
- FIG. 53 is a right side view of an outdoor unit that is applied to Modification 1 (when a heat storage body is brought into contact with the inner surface of the front surface of the unit casing).
- FIG.54 Partial perspective view of outdoor unit that exerts force on Modification 1 (when the heat accumulator is brought into contact with the inner surface of the bottom surface of the unit casing) (front panel, front panel, side panel, refrigerant circuit configuration) (Parts and the first electrical component unit are removed).
- FIG. 55 is a front view showing a structure in which the second electrical component unit and the heat storage body are attached between the compressor and the bottom plate of the unit casing in the vertical direction.
- FIG. 56 Plan view of the outdoor unit that works on Modification 2 (when the accumulator is placed in the corner of the right side plate and the accumulator contacts the heat accumulator) (with the refrigerant circuit components other than the top plate and accumulator removed) (Illustrated).
- FIG. 6 is a perspective view showing the vicinity of a second electrical component unit that is covered when a heat storage body is contacted.
- FIG. 58 is a front view showing a structure in which the suction plate pipe, the heat accumulator, and the second electrical component unit are attached between the compressor and the bottom plate of the unit casing.
- FIG. 59 is a view of the suction plate piping as seen from the direction B of FIG. 58 (partially cut away).
- FIG. 60 is a view of the heat storage body in which the direction B force of FIG. 58 is also seen (partially cut away).
- FIG. 1 is a schematic refrigerant circuit diagram of an air-conditioning apparatus 1 in which an outdoor unit of an air-conditioning apparatus according to the first embodiment of the present invention is employed.
- the air conditioner 1 is a so-called separate type air conditioner, and mainly includes an outdoor unit 2, an indoor unit 4, a liquid refrigerant communication pipe 5 and a gas refrigerant communication pipe connecting the outdoor unit 2 and the indoor unit 4. 6 and constitutes a vapor compression refrigerant circuit 10.
- the indoor unit 4 is installed indoors and includes an indoor-side refrigerant circuit 10a that constitutes a part of the refrigerant circuit 10.
- the indoor refrigerant circuit 10a mainly has an indoor heat exchanger 41.
- the indoor heat exchange ⁇ 41 consists of, for example, a cross-fin type fin-and-tube heat exchanger composed of heat transfer tubes and a large number of fins, and functions as a refrigerant evaporator during cooling operation. It is a heat exchanger that cools air and functions as a refrigerant condenser during heating operation to heat indoor air.
- the liquid side of the indoor heat exchanger 41 is connected to the liquid refrigerant communication pipe 5, and the gas side of the indoor heat exchanger 41 is connected to the gas refrigerant communication pipe 6.
- the outdoor unit 2 is installed outside and includes an outdoor-side refrigerant circuit 10b that constitutes a part of the refrigerant circuit 10.
- This outdoor refrigerant circuit 10b mainly has a compressor 22, a four-way switching valve 24, an outdoor heat exchanger 26, an expansion circuit 34, a liquid side closing valve 29, and a gas side closing valve 31. is doing.
- the suction port of the compressor 22 and the four-way switching valve 24 are connected by a suction pipe 21.
- the discharge port of the compressor 22 and the four-way switching valve 24 are connected by a discharge pipe 23.
- the four-way switching valve 24 and the gas side of the outdoor heat exchanger 26 are connected by a first gas refrigerant pipe 25.
- the outdoor heat exchange 26 and the liquid side closing valve 29 are connected by a liquid refrigerant pipe 27.
- the expansion circuit 34 is provided in the liquid refrigerant pipe 27.
- the liquid side shut-off valve 29 is connected to the liquid refrigerant communication pipe 5.
- the four-way selector valve 24 and the gas side stop valve 31 are connected by a second gas refrigerant pipe 30.
- the gas side shut-off valve 31 is connected to the gas refrigerant communication pipe 6.
- the compressor 22 sucks low-pressure gas refrigerant from the suction pipe 21 and compresses it to form high-pressure gas refrigerant. After that, the positive displacement compressor has a function of discharging to the discharge pipe 23.
- the four-way switching valve 24 is a valve for switching the direction of the refrigerant flow when switching between the cooling operation and the heating operation.
- the discharge pipe 23 and the first gas refrigerant pipe 25 are connected.
- the suction pipe 21 and the second gas refrigerant pipe 30 are connected, and during the heating operation, the discharge pipe 23 and the second gas refrigerant pipe 30 are connected, and the suction pipe 21 and the first gas refrigerant pipe 25 are connected. Is possible.
- the outdoor heat exchanger ⁇ 26 consists of a fin-and-tube heat exchanger of cross fin type composed of heat transfer tubes and a large number of fins. During cooling operation, it is a condenser of the cooling medium that uses outdoor air as a heat source. This is a heat exchange functioning as a refrigerant evaporator that uses outdoor air as a heat source during heating operation.
- the expansion circuit 34 includes a bridge circuit 37 and a connecting pipe 39 connected to the bridge circuit 37.
- the bridge circuit 37 is connected to the liquid refrigerant pipe 27.
- the liquid refrigerant pipe 27 is connected to the liquid refrigerant pipe 27 from one of the liquid side closing valve 29 side and the liquid refrigerant pipe 27 on the outdoor heat exchanger 26 side via the connecting pipe 39. It is possible to circulate the refrigerant to the other side of the 27 liquid side closing valve 29 side and the other side of the liquid refrigerant pipe 27 on the outdoor heat exchanger 26 side.
- the bridge circuit 37 causes the refrigerant having the outdoor heat exchange force of the liquid refrigerant pipe 27 to flow into the communication pipe 39 and then the liquid refrigerant pipe 27 through the communication pipe 39. It is possible to circulate the refrigerant on the liquid side closing valve 29 side. Further, the bridge circuit 37 allows the refrigerant from the liquid side closing valve 29 side of the liquid refrigerant pipe 27 to flow into the connecting pipe 39 during heating operation, and then the outdoor heat of the liquid refrigerant pipe 27 through the connecting pipe 39. It is possible to circulate refrigerant on the other side.
- the bridge circuit 37 is a circuit mainly composed of four check valves 37a, 37b, 38a, and 38b.
- the inlet check valve 37a only allows the refrigerant to flow from the liquid side closing valve 29 side of the liquid refrigerant pipe 27 to the connecting pipe 39.
- the inlet check valve 37 b allows only the refrigerant flow to the communication pipe 39 for the outdoor heat exchanger 26 side force of the liquid refrigerant pipe 27.
- the inlet check valves 37a and 37b have a function of causing the refrigerant to flow through the communication pipe 39 also by one force on the liquid side closing valve 29 side of the liquid refrigerant pipe 27 and the outdoor heat exchanger 26 side of the liquid refrigerant pipe 27. .
- the outlet check valve 38a allows only the refrigerant to flow from the communication pipe 39 to the liquid side closing valve 29 side of the liquid refrigerant pipe 27.
- the outlet check valve 38b allows only the refrigerant to flow to the outdoor heat exchanger 26 side of the liquid refrigerant pipe 27 in terms of the connecting pipe 39 force.
- Exit check The valves 38 a and 38 b have a function of circulating the refrigerant from the communication pipe 39 to the other of the liquid refrigerant pipe 27 on the liquid side closing valve 29 side and the liquid refrigerant pipe 27 on the outdoor heat exchange side.
- the connecting pipe 39 is mainly provided with a receiver 36 for temporarily storing high-pressure liquid refrigerant and an expansion valve 28 connected to the outlet of the receiver 36.
- the expansion valve 28 is an electric expansion valve that can depressurize high-pressure liquid refrigerant during cooling operation and heating operation. Due to the expansion circuit 34, the high-pressure liquid refrigerant condensed in the outdoor heat exchanger 26 during the cooling operation flows from the outdoor heat exchange side of the liquid refrigerant pipe 27 to the inlet check valve 37 b, the communication pipe 39, and the receiver 36.
- the outlet check valve 38a, the liquid-side shutoff valve 29 side of the liquid refrigerant pipe 27, the liquid-side shutoff valve 29, and the liquid refrigerant communication pipe 5 is sent to the indoor heat exchanger 41. Further, during the heating operation, the high-pressure liquid refrigerant condensed in the indoor heat exchanger 41 is sent to the liquid refrigerant pipe 27 through the liquid refrigerant communication pipe 5 and the liquid side shut-off valve 29, and the liquid refrigerant pipe 27 From the shut-off valve 29 side, the inlet check valve 37a, the communication pipe 39 and the receiver 36 are passed through the receiver 36 in this order and sent to the motor-operated valve 28.
- the communication pipe 39 including the receiver 36 has a circuit configuration in which high-pressure refrigerant always flows into the communication pipe 39 during cooling operation and heating operation and is maintained until the pressure is reduced by the expansion valve 28. It has become.
- FIG. 2 is a plan view of the outdoor unit 2 (illustrated by removing refrigerant circuit components other than the top plate 53 and the receiver 36).
- FIG. 3 is a front view of the outdoor unit 2 (shown by removing refrigerant circuit components other than the left and right front plates 54 and 56 and the receiver 36).
- FIG. 4 is a right side view of the outdoor unit 2 (illustrated by removing refrigerant circuit components other than the right front plate 56, the right side plate 57, and the receiver 36).
- FIG. 5 is a perspective view showing a state in which the second electrical component unit 83 is attached to the receiver 36.
- the outdoor unit 2 has a structure (so-called trunk type structure) in which the interior of a substantially rectangular box-shaped unit casing 51 is divided into a blower chamber S and a machine chamber S by a partition plate 58 extending vertically.
- a refrigerant circuit component (see FIG. 1) that constitutes an outdoor refrigerant circuit 10b together with an outdoor heat exchanger 26 and a compressor 22, and an electrical component unit 81 that controls the operation of the outdoor unit 2. Yes.
- the unit casing 51 mainly includes a bottom plate 52, a top plate 53, a left front plate 54, a right front plate 56, a right side plate 57, and a partition plate 58.
- the bottom plate 52 is a horizontally long, substantially rectangular metal plate member that constitutes the bottom surface portion of the unit casing 51.
- the peripheral edge of the bottom plate 52 is bent upward.
- two fixing legs 59 fixed to the field installation surface are provided on the outer surface of the bottom plate 52.
- the fixed leg 59 is a metal plate-like member having a substantially U shape in a front view of the unit casing 51 and extending from the front side of the unit casing 51 toward the rear side.
- the top plate 53 is a horizontally long, substantially rectangular metal plate-like member that constitutes the top surface portion of the outdoor unit 2.
- the left front plate 54 is a metal plate-like member that mainly constitutes the left front portion and the left side portion of the unit casing 51, and the lower portion thereof is fixed to the bottom plate 52 with screws or the like.
- the left front plate 54 is formed with a suction port 55a for air sucked into the unit casing 51 by the outdoor fan 32. Further, the left front plate 54 is provided with an air outlet 54a through which air taken in from the back side and the left side of the mute casing 51 by the outdoor fan 32 is blown out.
- a fan grill 60 is provided at the outlet 54a.
- the right front plate 56 is a metal plate-like member mainly constituting the right front portion and the right front portion of the unit casing 51, and the lower portion thereof is fixed to the bottom plate 52 with screws or the like. Further, the left end of the right front plate 56 is fixed to the right end of the left front plate 54 with a screw or the like.
- the right side plate 57 is a metal plate-like member that mainly constitutes the rear portion and the right back portion of the right side surface of the unit casing 51, and the lower portion thereof is fixed to the bottom plate 52 with screws or the like. Between the rear end portion of the left front plate 54 and the rear side end portion of the right plate 57 and the left and right direction, an air inlet 55b is formed which is sucked into the unit casing 51 by the outdoor fan 32. ing.
- the partition plate 58 is a vertically extending metal plate member disposed on the bottom plate 52, and is disposed so as to partition the internal space of the unit casing 51 into two left and right spaces.
- the lower part of the partition plate 58 is fixed to the bottom plate 52 with screws or the like.
- the right end of the left front plate 54 is fixed to the front end of the partition plate 58 with screws or the like.
- the rear side end of the right side plate 57 is fixed to the outdoor heat exchanger tube plate 26a with screws or the like.
- the unit casing 51 is divided into the blower chamber S and the machine chamber S by the partition plate 58 in the internal space. More specifically, the blower chamber S includes a bottom plate 52 and a top plate 5
- Machine room S consists of bottom plate 52, top plate 53, right front plate 56, and right side
- the inside of 2 is visible.
- the outdoor heat exchanger 26 is disposed in the blower chamber S, and exchanges heat with air taken into the boot casing 51 by the outdoor fan 32.
- the outdoor heat exchanger 26 has a substantially L shape in a plan view of the unit casing 51, and the left side force of the unit casing 51 is also arranged along the back surface.
- a tube sheet 26 a is provided at the right end of the outdoor heat exchanger 26.
- the outdoor fan 32 is a propeller fan having a plurality of blades, and is disposed on the front side of the outdoor heat exchange 26 in the blower chamber S.
- the outdoor fan 32 is configured to be rotationally driven by an outdoor fan electric motor 32a. When the outdoor fan 32 is driven, air is taken in through the inlets 55a and 55b on the back and left side of the unit casing 51, passes through the outdoor heat exchanger 26, and then blows out to the front of the unit casing 51.
- the force 54a also allows air to be blown out of the unit casing 51.
- the compressor 22 is a hermetically sealed pressure in which a compressor motor 22a (see Fig. 1) is built in the housing. It is a contractor and is placed in the machine room S.
- the compressor motor 22a has a frequency
- the compressor 22 has a vertical cylindrical shape that is approximately half the total height of the unit casing 51, and a lower portion thereof is fixed to the bottom plate 52. Further, the compressor 22 is disposed near the center of the unit casing 51 in the front-rear direction and on the right side of the unit casing 51 in the left-right direction in the plan view of the unit casing 51.
- the refrigerant circuit components are mainly composed of a suction pipe 21, a discharge pipe 23, a four-way switching valve 24, a first gas refrigerant pipe 25, a liquid refrigerant pipe 27, an expansion circuit 34 (specifically, an expansion valve). 28, receiver 36, bridge circuit 37, connecting pipe 39), outdoor side refrigerant circuit 10b including a liquid side closing valve 29, a second gas refrigerant pipe 30, and a gas side closing valve 31 (provided that the compressor 22 and outdoor heat exchanger 26).
- the refrigerant circuit components are mainly machine room S
- the receiver 36 is a vertical cylindrical container, and is substantially at the center of the machine room S in the front-rear direction and the left-right direction.
- the arrangement of the receiver 36 is not limited to the position of this embodiment. The force with which the electrical component unit 81 is attached to the receiver 36 will be described in detail later.
- the electrical component unit 81 includes various electrical components such as a control P board and an inverter board including a microcomputer for performing operation control.
- the electrical component unit 81 is mainly the first electrical component unit 82 and the second electrical component disposed in the upper space of the machine room S.
- the first electrical component unit 82 mainly has a control P board on which a low heat generating component with a small heat generation amount during operation, such as a microcomputer, is mounted.
- the first electrical component unit 82 is disposed in front of the unit casing 51, that is, facing the right front plate 56, and includes a board body 82a on which various low heat generation components are mounted facing forward, and a board body 82a.
- support portions 82b and 82c provided at both ends.
- the support portion 82b is fixed to the front end portion of the partition plate 58 with screws or the like, and the support portion 82c is fixed to the front end portion of the right side plate 57 with screws or the like. It is.
- the first electrical component unit 82 can be easily accessed by removing the right front plate 56 during maintenance.
- the second electrical component unit 83 is an inverter board on which a high heat-generating component that generates a large amount of heat during operation, including an inverter control element that also has power such as a power transistor and a diode, is mounted. It has a substrate body 83a on which various high heat generating components including it are mounted. In the present embodiment, an inverter control element used for inverter control of the compressor motor 22a is mounted on the board body 83a.
- the second electrical component boot 83 is disposed opposite the right front plate 56 on the back side of the first electrical component unit 82 and is attached to the receiver 36.
- the second electrical component unit 83 is a band member in a state in which the outer peripheral surface of the receiver 36 is in contact with the rear surface of the substrate body 83a or various high heat-generating components including the inverter control element.
- 83b or the like is detachably attached to the receiver 36, and the heat dissipating fin protruding from the partition plate 58 like the conventional outdoor unit to the blower chamber S side is omitted.
- the exhaust heat generated by the high heat generating parts such as the inverter control element during operation is mainly dissipated to the high-pressure liquid refrigerant temporarily accumulated in the receiver 36.
- the outdoor unit 2 of the present embodiment is provided with a cooling structure in which exhaust heat generated by high heat generating components such as an inverter control element is dissipated into the high-pressure liquid refrigerant accumulated in the receiver 36.
- high heat-generating components including the back surface of the substrate body 83a or the inverter control element may be in direct contact with the outer peripheral surface of the receiver 36 or may be in contact with each other through a metal plate member.
- the arrangement of the second electrical component unit 83 is not limited to that arranged opposite to the right front plate 56 as in the present embodiment.
- the four-way switching valve 24 is in the state indicated by the solid line in FIG. 1, that is, the discharge pipe 23 is connected to the first gas refrigerant pipe 25, and the suction pipe 21 is the second gas refrigerant. Connected to tube 30.
- liquid side valve 29 and gas side valve 31 When the expansion valve 28 is opened, the opening degree of the expansion valve 28 is adjusted so as to depressurize the refrigerant.
- the outdoor fan 32 and the compressor 22 are operated. Then, after the outdoor fan 32 is operated, the air is taken into the unit casing 51 from the suction ports 55a and 55b on the left side and the rear side of the unit casing 51 and used as a heat source by passing through the outdoor heat exchanger ⁇ 26. As a result, a flow of outdoor air that is blown out from the air outlet 54a on the front surface of the unit casing 51 is formed. In addition, by the operation of the compressor 22, the low-pressure gas refrigerant is sucked into the compressor 22 through the suction pipe 21 and is compressed into the high-pressure gas refrigerant and then discharged to the discharge pipe 23.
- the high-pressure gas refrigerant discharged to the discharge pipe 23 is sent to the outdoor heat exchanger 26 through the four-way switching valve 24 and the first gas refrigerant pipe 25, cooled and condensed by heat exchange with the outdoor air, and condensed into a high-pressure liquid. It becomes a refrigerant and is sent to the liquid refrigerant pipe 27.
- the high-pressure liquid refrigerant sent to the liquid refrigerant pipe 27 is also sent to the motor-operated valve 28 through the inlet check valve 37b, the communication pipe 39, and the receiver 36 in this order on the side of the outdoor heat exchanger 26 of the liquid refrigerant pipe 27.
- the high-pressure liquid refrigerant sent to the motor-operated valve 28 is depressurized by the motor-operated valve 28 to become a low-pressure gas-liquid two-phase refrigerant, and the outlet check valve 38a, the liquid refrigerant pipe 27 liquid-side closing valve 29 side, It is sent to the indoor heat exchanger 41 through the side closing valve 29 and the liquid refrigerant communication pipe 5.
- the low-pressure gas-liquid two-phase refrigerant sent to the indoor heat exchanger 41 is heated and evaporated by heat exchange with the indoor air to become low-pressure gas refrigerant, which is connected to the gas refrigerant communication pipe 6, the gas side shut-off valve 31, The gas is returned to the suction pipe 21 through the second gas refrigerant pipe 30 and the four-way switching valve 24 and is sucked into the compressor 22 again.
- the four-way switching valve 24 is in the state indicated by the broken line in FIG. 1, that is, the discharge pipe 23 is connected to the second gas refrigerant pipe 30, and the suction pipe 21 is The first gas refrigerant pipe 25 is connected. Further, the liquid side closing valve 29 and the gas side closing valve 31 are opened, and the opening of the expansion valve 28 is adjusted so as to depressurize the refrigerant.
- the outdoor fan 32 and the compressor 22 are operated. Then, after the outdoor fan 32 is operated, the air is taken into the unit casing 51 from the suction ports 55a and 55b on the left side and the rear side of the unit casing 51 and used as a heat source by passing through the outdoor heat exchanger ⁇ 26. As a result, a flow of outdoor air that is blown out from the air outlet 54a on the front surface of the unit casing 51 is formed. Further, the suction pipe 21 is operated by the operation of the compressor 22. The low-pressure gas refrigerant is sucked into the compressor 22 through and compressed into a high-pressure gas refrigerant, and then discharged to the discharge pipe 23.
- the high-pressure gas refrigerant discharged to the discharge pipe 23 is sent to the indoor heat exchanger 41 through the four-way switching valve 24, the second gas refrigerant pipe 30 and the gas-side shut-off valve 31, and cooled by heat exchange with the room air.
- the condensed liquid refrigerant becomes high-pressure liquid refrigerant, and is sent to the liquid refrigerant pipe 27 through the liquid refrigerant communication pipe 5 and the liquid side closing valve 29.
- the high-pressure liquid refrigerant sent to the liquid refrigerant pipe 27 is sent to the motor-operated valve 28 through the liquid side shut-off valve 29 side force of the liquid refrigerant pipe 27 through the inlet check valve 37a, the connecting pipe 39 and the receiver 36 in this order.
- the high-pressure liquid refrigerant sent to the motor-operated valve 28 is decompressed by the motor-operated valve 28 to become a low-pressure gas-liquid two-phase refrigerant, and passes through the outlet check valve 38b and the outdoor heat exchange 26 side of the liquid refrigerant pipe 27. Sent to outdoor heat exchanger 26.
- the low-pressure gas-liquid two-phase refrigerant sent to the outdoor heat exchanger 26 is heated and evaporated by heat exchange with the outdoor air to become low-pressure gas refrigerant, and the first gas refrigerant pipe 25 and the four-way switching valve 24 Then, the air is returned to the suction pipe 21 and again sucked into the compressor 22.
- the electrical component unit 81 of the outdoor unit 2 is energized for the operation control of the air conditioner 1, and the inverter control element and the like of the second electrical component unit 83 are high.
- the heat generating parts are generating heat.
- the outdoor unit 2 of the present embodiment employs a structure in which the second electrical component unit 83 (specifically, the back surface of the board body 83a) as the inverter board is attached to the receiver 36. 2 Waste heat generated by the inverter control element mounted on the electrical component unit 83 is dissipated to the high-pressure liquid refrigerant accumulated in the receiver 36. As a result, abnormal heating of the inverter control element can be prevented.
- inverter control is performed by attaching the second electrical component unit 83 as the inverter board to the receiver 36 as the refrigerant circuit component through which the high-pressure refrigerant flows. Since the cooling structure that dissipates the heat generated by the element to the high-pressure refrigerant accumulated in the receiver 36 is adopted, it is possible to omit the partition plate force, such as the conventional outdoor unit, and the heat radiation fins that protrude to the fan chamber side. it can. This allows machine room S
- liquid refrigerant condensed in the outdoor heat exchanger 26 or the indoor heat exchanger 41 flows through the connecting pipe 39 including the receiver 36 (however, until the pressure is reduced by the expansion valve 28).
- Such liquid refrigerant is equivalent to or higher than the air temperature in the machine room S.
- the electrical component unit 83 can be cooled to a temperature lower than the upper limit temperature of use of the inverter control element, which is suitable for cooling the electrical component unit 83. Furthermore, since the evaporation heat of the liquid refrigerant can also be used, a high cooling effect can be obtained.
- the second electrical component unit 83 is detachably attached to the receiver 36, the serviceability of the second electrical component unit 83 during maintenance can be ensured.
- FIGS. 1-10 The arrangement of the receiver 36 and the second electrical component unit 83 in the machine room S is shown in FIGS.
- the second electrical component unit 83 as the inverter board is attached to the receiver 36 as the refrigerant circuit component through which the high-pressure refrigerant flows, thereby controlling the inverter.
- a cooling structure that dissipates the exhaust heat generated by the element into the high-pressure liquid refrigerant accumulated in the receiver 36 is used, but the present invention is not limited to this.
- FIG. By adopting a cooling structure that dissipates the exhaust heat generated by the inverter control element to the high-pressure liquid refrigerant flowing in the high-pressure plate pipe 39a by detachably attaching it to the high-pressure plate pipe 39a that constitutes May be.
- the high-pressure plate pipe 39a is a portion of the connecting pipe 39 between the inlet check valves 37a and 37b and the receiver 36 (see FIG. 1). By brazing etc. A flow path is formed inside by bonding.
- the high-pressure plate pipe 39a has a shape along the back surface of the second electrical component unit 83, and a surface 39b that contacts the back surface of the second electrical component unit 83 or a high heat-generating component including the inverter control element. ing.
- FIG. 6 is a perspective view showing a state where the second electrical component unit 83 according to Modification 1 (when the second electrical component unit 83 is attached to the high-pressure plate pipe 39a) is attached to the high-pressure plate piping 39a.
- FIG. 7 is a view of the high-pressure plate piping 39a as viewed in the direction A in FIG. 6 (partially cut away).
- the exhaust heat generated by the inverter control element can be dissipated using the high-pressure refrigerant, so that a high cooling effect is achieved. can get.
- the high pressure plate pipe 39a is formed with a surface 39b having a shape along the back surface of the second electrical component unit 83, and the contact area between the high pressure plate piping 39a and the second electrical component unit 83 is large. Therefore, the cooling efficiency of the second electrical component unit 83 can be increased, and the dissipation of exhaust heat generated by the inverter control element can be promoted.
- the second electrical component unit 83 may be arranged on the upper side of the compressor 22 or arranged in another place in the machine room S.
- the high-pressure plate pipe 39a and the second electrical component unit 83 are the outer plate of the unit casing 51 and form the machine room S.
- the bottom, top, right front, right side, or right back (actual
- the bottom plate 52, the top plate 53, the right front plate 56, or the right side plate 57 may be arranged along the inner surface.
- the space near the outer plate of the unit casing 51 can be used effectively.
- the second electrical component unit 83 is arranged along the bottom surface of the unit casing 51 will be described.
- the high-pressure plate pipe 39a and the second electrical component unit 83 can be arranged along the bottom surface of the unit casing 51 (the bottom plate 52 in the present embodiment).
- FIG. 8 shows Modification 1 (second electrical component unit 83 is unit casing A partial perspective view of the outdoor unit 2 that works well (when placed along the bottom of 51) from the diagonally right front (top plate 53, front plate 54, 56, side plate 57, refrigerant circuit other than high-pressure plate piping 39a) The components and the first electrical component unit 82 are removed).
- the second electrical component unit 83 and the high-pressure plate pipe 39a are arranged between the compressor 22 and the bottom plate 52 in the vertical direction. It is desirable that the second electrical component unit 83 is detachably attached to the high-pressure plate pipe 39a in consideration of the serviceability of the second electrical component unit 83 during maintenance.
- a pedestal 52b for installing the compressor 22 is provided on the bottom plate 52, and the second electrical component boot 83 is provided between the compressor 22 and the bottom plate 52 in the vertical direction.
- FIG. 9 is a front view showing a structure in which the second electrical component unit 83 and the high-pressure plate pipe 39a are attached between the compressor 22 and the bottom plate 52 of the unit casing 51 in the vertical direction.
- the second electrical component unit 83 serving as an inverter board is attached to the receiver 36 or the high-pressure plate pipe 39a, thereby reducing the heat generated by the inverter control element. Since the cooling structure that dissipates the high-pressure refrigerant flowing in the receiver 36 or the high-pressure plate pipe 39a is adopted, the refrigerant is circulated in the refrigerant circuit 10 during the operation of the air conditioner 1, so that the inverter control element It is possible to sufficiently dissipate the exhaust heat generated. However, the inverter control element generates heat transiently even after the air conditioner 1 is stopped.
- the amount of the heat storage material be an amount that can store the amount of cold energy that can absorb the exhaust heat generated by the inverter control element after the air conditioner 1 is stopped.
- the receiver 36 can be provided with a heat storage body 91 in which a heat storage material 93 is enclosed.
- the second electrical component unit 83 is attached to the receiver 36 by a band member 83b or the like with the heat storage body 91 sandwiched between the second electrical component unit 83 and the outer peripheral surface of the receiver 36.
- the heat storage body 91 mainly has a recessed surface 92a along the outer peripheral surface of the receiver 36 and a surface 92b that contacts the back surface of the board body 83a or a high heat-generating component including an inverter control element.
- the heat storage material 93 is a latent heat storage material that stores heat using latent heat of fusion
- the melting point of the heat storage material 93 is lower than the upper limit temperature of use of the inverter control element. Higher is used. For example, it is desirable to use paraffin and salts with a melting point of about 60-80 ° C.
- 10 is a perspective view showing a state in which the second electrical component unit 83 according to Modification 2 (when the heat storage material 93 is provided in the receiver 36) is attached to the receiver 36.
- FIG. FIG. 11 is a view of the heat storage body 91 as seen from the direction B in FIG. 10 (partially cut away).
- the second electrical component unit 83 when the second electrical component unit 83 is attached to the high-pressure plate pipe 39a, as shown in FIG. 12, a heat storage body 191 in which a heat storage material 193 is enclosed can be provided in the high-pressure plate pipe 39a.
- the second electrical component unit 83 can be attached to and detached from the high-pressure plate pipe 39a with a band member 83b or the like with a part of the heat storage body 191 sandwiched between the second electrical component unit 83 and the outer peripheral surface of the high-pressure plate pipe 39a. It is attached.
- the heat storage body 19 1 mainly has a rectangular hole 1 92a into which the high-pressure plate pipe 39a can be inserted, and a box body 192 that forms a hollow cylindrical space inside. And a heat storage material 193 enclosed in the box 192.
- Box 192 has a high-pressure plate arranged in rectangular hole 192a. With the tube 39a inserted, it covers the outer peripheral surface of the high-pressure plate pipe 39a, and has a surface 192b that contacts the back surface of the substrate body 83a or a high heat-generating component including the inverter control element.
- the heat storage material 193 is a latent heat storage material that stores heat using latent heat of fusion, and the melting point of the heat storage material 193 flows through the high-pressure plate piping 39a that is lower than the upper limit temperature of use of the inverter control element.
- a temperature higher than that of the high-pressure refrigerant is used.
- paraffin and salts having a melting point of about 60 to 80 ° C.
- FIG. 12 is a perspective view showing a state in which the second electrical component unit 83 that is applied to Modification 2 (when the heat storage material 193 is provided on the high-pressure plate pipe 39a) is attached to the high-pressure plate pipe 39a.
- FIG. 13 is a view of the heat storage body 191 viewed from the direction C in FIG. 12 (partially cut away).
- FIG. 14 is a diagram showing a heat storage body 191 that can be wound around the high-pressure plate pipe 39a.
- the compressor 22 is placed on the bottom plate 52 as shown in FIG.
- a base 52b for installing the second electrical component unit 83, the high-pressure plate pipe 39a, and the heat storage body 191 is formed between the compressor 22 and the bottom plate 52 in the vertical direction.
- the pipe 39a is inserted into the rectangular hole 192a of the heat accumulator 191 and the second electrical equipment unit 83 are stacked in this space, and the rail member 52a is placed in this space.
- FIG. 15 is a front view showing a structure in which the high-pressure plate pipe 39a, the heat storage material 193, and the second electrical component unit 83 are attached between the compressor 22 and the bottom plate 52 of the unit casing 51 in the vertical direction.
- FIG. 16 is a schematic refrigerant circuit diagram of the air conditioner 101 in which the outdoor unit of the air conditioner according to the second embodiment of the present invention is employed.
- the air conditioner 101 is a so-called separate type air conditioner, and mainly includes the outdoor unit 102, the indoor unit 4, the liquid refrigerant communication pipe 5 and the gas refrigerant communication pipe 6 that connect the outdoor unit 102 and the indoor unit 4.
- the vapor compression refrigerant circuit 110 is configured.
- the indoor unit 4 is installed indoors, and includes an indoor-side refrigerant circuit 10a that constitutes a part of the refrigerant circuit 110.
- This indoor refrigerant circuit 10a mainly has an indoor heat exchanger 41.
- the configuration of the indoor-side refrigerant circuit 10a is the same as the configuration of the indoor-side refrigerant circuit 10a of the first embodiment, and thus the description thereof is omitted here.
- the outdoor unit 102 is installed outside and includes an outdoor refrigerant circuit 110b that constitutes a part of the refrigerant circuit 110.
- This outdoor refrigerant circuit 110b mainly includes a compressor 22, a four-way switching valve 24, an outdoor heat exchange 26, an expansion valve 28, a liquid side closing valve 29, a gas side closing valve 31, and an accumulator. 33.
- the suction port of the compressor 22 and the four-way switching valve 24 are connected by a suction pipe 21, and an accumulator 33 is provided between them.
- the discharge port of the compressor 22 and the four-way switching valve 24 are connected by a discharge pipe 23.
- the four-way switching valve 24 and the gas side of the outdoor heat exchange 26 are connected by a first gas refrigerant pipe 25.
- the outdoor heat exchange 26 and the liquid side closing valve 29 are connected by a liquid refrigerant pipe 27.
- the expansion valve 28 is provided in the liquid refrigerant pipe 27.
- the liquid side stop valve 29 is connected to the liquid refrigerant communication pipe 5.
- the four-way selector valve 24 and the gas side stop valve 31 are connected by a second gas refrigerant pipe 30.
- the gas side shut-off valve 31 is connected to the gas refrigerant communication pipe 6.
- the accumulator 33 is a liquid storage container for temporarily storing the low-pressure refrigerant circulating in the refrigerant circuit 10.
- the configuration of the compressor 22, the four-way selector valve 24, the outdoor heat exchanger 26, and the expansion valve 28 is the same as that of the first Since the configuration is the same as that of the compressor 22, the four-way switching valve 24, the outdoor heat exchange 26, and the expansion valve 28 in the embodiment, the description thereof is omitted here.
- FIG. 17 is a plan view of the outdoor unit 2 (illustrated by removing refrigerant circuit components other than the top plate 53 and the accumulator 33).
- FIG. 18 is a front view of the outdoor unit 2 (illustrated by removing refrigerant circuit components other than the left and right front plates 54 and 56 and the accumulator 33).
- FIG. 19 is a right side view of the outdoor unit 2 (illustrated by removing refrigerant circuit components other than the right front plate 56, the right side plate 57, and the accumulator 33).
- FIG. 17 is a plan view of the outdoor unit 2 (illustrated by removing refrigerant circuit components other than the top plate 53 and the accumulator 33).
- FIG. 18 is a front view of the outdoor unit 2 (illustrated by removing refrigerant circuit components other than the left and right front plates 54 and 56 and the accumulator 33).
- FIG. 19 is a right side view of the outdoor unit 2 (illustrated by removing refrigerant circuit components other than
- the outdoor unit 2 has a structure in which the inside of a substantially rectangular parallelepiped box-shaped unit casing 51 is divided into a blower chamber S and a machine chamber S by a partition plate 58 that extends vertically (so-called “trailer”).
- a refrigerant circuit component constituting the refrigerant circuit 110b and an electrical component unit 81 for controlling the operation of the outdoor unit 2 are provided.
- the structure of the unit casing 51, the outdoor heat exchanger 26, the outdoor fan 32, and the compressor 22 is the same as that of the unit casing 51, the outdoor heat exchanger 26, the outdoor fan 32, and the compressor 22 in the first embodiment. Therefore, the description is omitted here.
- the refrigerant circuit components are mainly composed of an intake pipe 21, a discharge pipe 23, a four-way switching valve 24, a first gas refrigerant pipe 25, a liquid refrigerant pipe 27, an expansion valve 28, and a liquid side closing valve 29.
- the outdoor refrigerant circuit 110b (excluding the compressor 22 and the outdoor heat exchanger 26) including the second gas refrigerant pipe 30, the gas side closing valve 31, and the accumulator 33 is a component.
- the refrigerant circuit components are mainly arranged on the front side, upper side, right side and rear side of the compressor 22 in the machine room S.
- the accumulator 33 is a vertical cylindrical container, and is disposed at the approximate center in the front-rear direction and the left-right direction of the machine room S and above the compressor 22.
- the arrangement of the accumulator 33 is not limited to the position of the present embodiment. Also The force with which the electrical component unit 81 is attached to the accumulator 33 will be described later in detail.
- the electrical component unit 81 includes various electrical components such as a control P board and an inverter board including a microcomputer for performing operation control.
- the electrical component unit 81 is mainly the first electrical component unit 82 and the second electrical component disposed in the upper space of the machine room S.
- the second electrical component unit 83 is an inverter board on which high heat-generating parts that generate a large amount of heat during operation, including inverter control elements that also have power transistors, diodes, etc., are mounted. It has a substrate body 83 3a on which a heat generating component is mounted. In the present embodiment, an inverter control element used for inverter control of the compressor motor 22a is mounted on the board body 83a.
- the second electrical component unit 83 is disposed on the back side of the first electrical component unit 82 so as to face the right front plate 56, and is attached to the accumulator 33.
- the second electrical component unit 83 is configured such that the band member 83b is in a state where various high heat-generating components including the back surface of the substrate body 83a or the inverter control element are in contact with the outer peripheral surface of the accumulator 33.
- the heat dissipating fins that are detachably attached to the accumulator 33 and project from the partition plate 58 like the conventional outdoor unit to the fan chamber S side are omitted.
- exhaust heat generated by high heat-generating components such as inverter control elements during operation is mainly dissipated to the low-pressure gas refrigerant passing through the accumulator 33 and the low-pressure liquid refrigerant accumulated in the accumulator 33. become.
- the exhaust heat generated by the high heat-generating parts such as the inverter control element is converted into the low-pressure gas refrigerant passing through the accumulator 33 and the low-pressure liquid refrigerant accumulated in the accumulator 33.
- Various high heat-generating components including the back surface of the substrate body 83a or the inverter control element may be in direct contact with the outer peripheral surface of the accumulator 33 or may be in contact with each other through a metal plate member.
- the arrangement of the second electrical component unit 83 is not limited to that arranged opposite to the right front plate 56 as in the present embodiment.
- the configuration of the first electrical component unit 82 is the configuration of the first electrical component unit 82 of the first embodiment. Therefore, the description is omitted here.
- the four-way switching valve 24 is in the state indicated by the solid line in FIG. 16, that is, the discharge pipe 23 is connected to the first gas refrigerant pipe 25, and the suction pipe 21 is connected to the second gas. It is connected to the refrigerant pipe 30.
- the liquid side closing valve 29 and the gas side closing valve 31 are opened, and the opening of the expansion valve 28 is adjusted to depressurize the refrigerant.
- the outdoor fan 32 and the compressor 22 are operated. Then, after the outdoor fan 32 is operated, the air is taken into the unit casing 51 from the suction ports 55a and 55b on the left side and the rear side of the unit casing 51 and used as a heat source by passing through the outdoor heat exchanger ⁇ 26. As a result, a flow of outdoor air that is blown out from the air outlet 54a on the front surface of the unit casing 51 is formed.
- the compressor 22 when the compressor 22 is operated, the low-pressure gas refrigerant is sucked into the compressor 22 through the suction pipe 21 and the accumulator 33 and is compressed to be a high-pressure gas refrigerant, and then discharged to the discharge pipe 23. .
- the high-pressure gas refrigerant discharged to the discharge pipe 23 is sent to the outdoor heat exchanger 26 through the four-way switching valve 24 and the first gas refrigerant pipe 25, and is cooled and condensed by heat exchange with the outdoor air, and then the high-pressure gas refrigerant is discharged. It becomes liquid refrigerant and is sent to the liquid refrigerant pipe 27.
- the high-pressure liquid refrigerant sent to the liquid refrigerant pipe 27 is decompressed by the expansion valve 28 to become a low-pressure gas-liquid two-phase refrigerant, and passes through the liquid refrigerant pipe 27, the liquid-side closing valve 29, and the liquid refrigerant communication pipe 5. It is sent to the indoor heat exchanger 41.
- the low-pressure gas-liquid two-phase refrigerant sent to the indoor heat exchanger is heated and evaporated by heat exchange with the indoor air to become low-pressure gas refrigerant, and the gas refrigerant communication pipe 6, gas-side shut-off valve 31, returned to the suction pipe 21 through the second gas refrigerant pipe 30 and the four-way selector valve 24, passed through the accumulator 33, and again sucked into the compressor 22.
- the four-way switching valve 24 is in the state shown by the broken line in FIG. 16, that is, the discharge pipe 23 is connected to the second gas refrigerant pipe 30 and the suction pipe 21 is connected to the first gas refrigerant pipe 25.
- liquid side closing valve 29, gas side closing The chain valve 31 is opened, and the opening of the expansion valve 28 is adjusted so as to depressurize the refrigerant.
- the outdoor fan 32 and the compressor 22 are operated. Then, after the outdoor fan 32 is operated, the air is taken into the unit casing 51 from the suction ports 55a and 55b on the left side and the rear side of the unit casing 51 and used as a heat source by passing through the outdoor heat exchanger ⁇ 26. As a result, a flow of outdoor air that is blown out from the air outlet 54a on the front surface of the unit casing 51 is formed.
- the compressor 22 when the compressor 22 is operated, the low-pressure gas refrigerant is sucked into the compressor 22 through the suction pipe 21 and the accumulator 33 and is compressed to be a high-pressure gas refrigerant, and then discharged to the discharge pipe 23. .
- the high-pressure gas refrigerant discharged to the discharge pipe 23 is sent to the indoor heat exchanger through the four-way switching valve 24, the second gas refrigerant pipe 30 and the gas side shut-off valve 31 and cooled by heat exchange with the room air.
- the condensed liquid refrigerant becomes high-pressure liquid refrigerant, and is sent to the expansion valve 28 through the liquid refrigerant communication pipe 5, the liquid side closing valve 29, and the liquid refrigerant pipe 27.
- the high-pressure liquid refrigerant sent to the expansion valve 28 is decompressed by the expansion valve 28 to become a low-pressure gas-liquid two-phase refrigerant, and is sent to the outdoor heat exchanger 26 through the liquid refrigerant pipe 27.
- the low-pressure gas-liquid two-phase refrigerant sent to the outdoor heat exchanger 26 is heated and evaporated by heat exchange with the outdoor air to become low-pressure gas refrigerant, and the first gas refrigerant pipe 25 and four-way switching It is returned to the suction pipe 21 through the valve 24, passed through the accumulator 33, and again sucked into the compressor 22.
- the electrical component unit 81 of the outdoor unit 2 is energized to control the operation of the air conditioner 101, and the second electrical component unit 83 has a high heat generation such as an inverter control element.
- the part is generating heat.
- the outdoor unit 102 of the present embodiment employs a structure in which the second electrical component unit 83 (specifically, the back surface of the substrate body 83a) as an inverter board is attached to the accumulator 33.
- the exhaust heat generated by the inverter control element mounted on the two-component unit 83 is dissipated into the low-pressure gas refrigerant passing through the accumulator 33 and the low-pressure liquid refrigerant accumulated in the accumulator 33. As a result, abnormal heating of the inverter control element can be prevented.
- the low-pressure refrigerant flowing through the suction pipe 21 and the accumulator 33 is the coldest refrigerant among the cold heat sources in the outdoor unit 102, a high cooling effect can be obtained. Furthermore, since the low-pressure liquid refrigerant accumulates in the accumulator 33, the heat of evaporation of the low-pressure liquid refrigerant can also be used for IJ.
- the second electrical component unit 83 is detachably attached to the accumulator 33, the serviceability of the second electrical component unit 83 during maintenance can be ensured.
- the machine room S is not limited to the upper side of the compressor 22 as shown in FIGS.
- the second electrical component unit 83 serving as the inverter board is attached to the accumulator 33, so that the exhaust heat generated by the inverter control element is reduced by the low pressure flowing in the accumulator 33.
- a cooling structure that diffuses into the refrigerant is used, but this is not a limitation.
- the suction plate pipe 21a which forms part of the suction pipe 21, can be attached and detached with a band member 83b or the like.
- a cooling structure in which exhaust heat generated by the inverter control element is dissipated to the low-pressure refrigerant flowing in the suction plate pipe 21a by being attached to the pipe may be adopted.
- the suction plate pipe 21a is a portion of the suction pipe 21 between the four-way switching valve 24 and the accumulator 33 ( (See Fig. 16) A pair of plates are bonded together by brazing or the like to form a flow path inside.
- the suction plate pipe 21 a has a shape along the back surface of the second electrical component unit 83, and a surface 21 b that contacts the back surface of the second electrical component unit 83 is formed.
- FIG. 21 is a perspective view showing a state in which the second electrical component unit 83 that is applied to Modification 1 (when the second electrical component unit 83 is attached to the suction plate piping 21a) is attached to the suction plate piping 21a. is there.
- FIG. 22 is a view of the suction plate pipe 21a as viewed in the direction A in FIG. 22 (partially cut away).
- the exhaust heat generated by the inverter control element can be dissipated using the low-pressure refrigerant, so that a high cooling effect is obtained. It is done.
- the suction plate pipe 21a is formed with a surface 21b having a shape along the back surface of the second electrical component unit 83, which increases the contact area between the suction plate pipe 21a and the second electrical component unit 83. As a result, the cooling efficiency of the second electrical component unit 83 is increased, and the dissipation of exhaust heat generated by the inverter control element can be promoted.
- suction plate piping 21a and the second electrical component unit 83 are arranged in the machine room S.
- the second electrical component unit 83 may be arranged on the upper side of the compressor 22 or in another place in the machine room S.
- the suction plate pipe 21a and the second electrical component unit 83 are the outer plates of the unit casing 51 and form the machine room S.
- the bottom surface, the top surface, the right front surface, the right side surface, or the right back surface (actual
- the bottom plate 52, the top plate 53, the right front plate 56, or the right side plate 57 may be arranged along the inner surface.
- the space near the outer plate of the unit casing 51 can be used effectively.
- the second electrical component unit 83 is arranged along the bottom surface of the unit casing 51 will be described.
- the suction plate pipe 21a and the second electrical component unit 83 can be arranged along the bottom surface of the unit casing 51 (in this embodiment, the bottom plate 52).
- FIG. 23 shows the first modification example (the second electrical component unit 83 is The partial perspective view of the outdoor unit 2 that exerts a force to the right (when it is placed along the bottom surface of the front panel 51) and the right diagonal front force (top plate 53, front plates 54 and 56, side plates 57, refrigerant circuit other than the suction plate piping 21a) The components and the first electrical component unit 82 are removed).
- the second electrical component unit 83 and the suction plate pipe 21a are connected between the compressor 22 and the bottom plate 52 in the vertical direction. It is desirable that the second electrical component unit 83 is detachably attached to the suction plate pipe 21a in consideration of the serviceability of the second electrical component unit 83 during maintenance.
- a base 52b for installing the compressor 22 is provided on the bottom plate 52, and the second electrical component unit 83 and the suction plate are disposed between the compressor 22 and the bottom plate 52 in the vertical direction.
- FIG. 24 is a front view showing a structure in which the second electrical component unit 83 is attached between the compressor 22 and the bottom plate 52 of the unit casing 51 in the vertical direction.
- the second electrical component unit 83 as the inverter board is attached to the accumulator 33 or the suction plate pipe 21a, so that the exhaust heat generated by the inverter control element is accumulated in the accumulator 33.
- the refrigerant is circulated in the refrigerant circuit 10 during the operation of the air conditioner 101, and thus the inverter control element generates exhaust. Heat can be dissipated sufficiently. However, the inverter control element generates heat transiently even after the air conditioner 101 is stopped.
- a heat storage material is provided in the accumulator 33 or the suction plate pipe 21a to which the second electrical component unit 83 is attached.
- the amount of the heat storage material is an amount that can store the amount of cold energy that can absorb the exhaust heat generated by the inverter control element after the air conditioner 101 is stopped.
- the accumulator 33 or the suction plate pipe 21a since the low-pressure refrigerant flowing in the accumulator 33 or the suction plate pipe 21a is lower than the air temperature in the machine room S, the accumulator 33 or the suction plate pipe 21a.
- Condensation may occur if the second electrical component unit 83 is in direct contact with the accumulator 33 or the suction plate pipe 21a and the second electrical component unit 83 (specifically, the back surface of the substrate body 83a). By providing it so as to be interposed between the two, it is possible to contribute to prevention of dew condensation in the second electrical equipment unit 83.
- the accumulator 33 can be provided with a heat storage body 91 in which a heat storage material 93 is enclosed.
- the second electrical component unit 83 is attached to the accumulator 33 by a band member 83b or the like with the heat accumulator 91 sandwiched between the second electrical component unit 83 and the outer peripheral surface of the accumulator 33.
- the heat accumulator 91 mainly contacts the recessed surface 92a along the outer peripheral surface of the accumulator 33 and the back surface of the substrate body 83a or various high heat generating components including the inverter control element.
- FIG. 25 is a perspective view showing a state in which the second electrical component unit 83 that works in Modification 2 (when the heat storage material 93 is provided in the accumulator 33) is attached to the accumulator 33.
- FIG. 26 is a view (partially cut away) of the heat storage body 91 also viewed in the direction B of FIG.
- the second electrical component unit 83 when mounting the second electrical component unit 83 to the suction plate pipe 21a As shown in FIG. 27, a heat storage body 191 in which a heat storage material 193 is enclosed can be provided in the suction plate pipe 21a.
- the second electrical component unit 83 can be attached to and detached from the suction plate pipe 21a with a band member 83b or the like with a part of the heat storage body 191 sandwiched between the outer peripheral surface of the suction plate pipe 21a. It is attached.
- the heat storage body 19 1 mainly has a box body 192 having a rectangular hole 1 92a into which the suction plate pipe 21a can be inserted and forming a hollow cylindrical space inside.
- the box body 192 covers the outer peripheral surface of the suction plate pipe 21a with the suction plate pipe 21a inserted into the rectangular hole 192a, and is used for various high heat generation components including the back surface of the board body 83a or the inverter control element. It has a contact surface 192b.
- the heat storage material 193 is a latent heat storage material that stores heat using latent heat of fusion, and the low-pressure refrigerant that flows in the suction plate pipe 21a whose melting point is lower than the upper limit temperature of use of the inverter control element. The one having a temperature higher than that is used.
- FIG. 27 is a perspective view showing a state in which the second electrical component unit 83 that is effective in Modification 2 (when the heat storage material 193 is provided in the suction plate pipe 21a) is attached to the suction plate pipe 21a.
- FIG. 28 is a view of the heat accumulator 191 also viewed in the direction C of FIG. 27 (partially cut away).
- FIG. 29 is a diagram showing a heat storage body 191 that can be wound around the suction plate pipe 21a.
- FIG. 30 is a front view showing a structure in which the suction plate pipe 21a, the heat storage material 193, and the second electrical component unit
- FIG. 31 is a schematic refrigerant circuit diagram of an air-conditioning apparatus 201 that employs an outdoor unit of an air-conditioning apparatus that works according to the third embodiment of the present invention.
- the air conditioner 201 is a so-called separate type air conditioner, and mainly includes the outdoor unit 202, the indoor unit 4, the liquid refrigerant communication pipe 5 and the gas refrigerant communication pipe 6 that connect the outdoor unit 202 and the indoor unit 4. And constitutes a vapor compression refrigerant circuit 110.
- the indoor unit 4 is installed indoors, and includes an indoor-side refrigerant circuit 10a that constitutes a part of the refrigerant circuit 110.
- This indoor refrigerant circuit 10a mainly has an indoor heat exchanger 41.
- the configuration of the indoor refrigerant circuit 10a is the same as the configuration of the indoor refrigerant circuit 10a of the first and second embodiments, and the description thereof is omitted here.
- the outdoor unit 202 is installed outdoors, and includes an outdoor refrigerant circuit 110b that constitutes a part of the refrigerant circuit 110.
- the outdoor refrigerant circuit 10b mainly includes a compressor 22, a four-way switching valve 24, an outdoor heat exchanger 26, an expansion valve 28, a liquid side closing valve 29, a gas side closing valve 31, and an accumulator 33. And have!
- the configuration of the outdoor refrigerant circuit 110b is the same as the configuration of the outdoor refrigerant circuit 110b of the second embodiment, and a description thereof will be omitted here.
- FIG. 32 is a plan view of the outdoor unit 202 (shown with the top plate 53 and refrigerant circuit components removed).
- FIG. 33 is a front view of the outdoor unit 202 (shown with the left and right front plates 54 and 56 and refrigerant circuit components removed).
- FIG. 34 is a perspective view of the outdoor unit 202 as viewed from the right oblique front force (shown with the top plate 53, the front plates 54 and 56, the side plate 57, the refrigerant circuit components, and the first electrical component unit 82 removed).
- the outdoor unit 202 has a structure (so-called trunk type structure) in which the inside of a substantially rectangular parallelepiped box-shaped unit casing 51 is divided into a blower chamber S and a machine chamber S by a partition plate 58 extending vertically.
- the refrigerant that constitutes the outdoor refrigerant circuit 110b together with the substantially box-shaped unit casing 51, the outdoor heat exchanger 26, the outdoor fan 32, the compressor 22, the outdoor heat exchanger 26 and the compressor 22 A circuit component (see FIG. 31) and an electrical component unit 81 for controlling the operation of the outdoor unit 202 are provided.
- the unit casing 51 mainly includes a bottom plate 52, a top plate 53, a left front plate 54, a right front plate 56, a right side plate 57, and a partition plate 58.
- the bottom plate 52 is a horizontally long, substantially rectangular metal plate member that constitutes the bottom surface portion of the unit casing 51.
- the peripheral edge of the bottom plate 52 is bent upward.
- two fixing legs 59 fixed to the field installation surface are provided on the outer surface of the bottom plate 52.
- the fixed leg 59 is a metal plate-like member having a substantially U shape in a front view of the unit casing 51 and extending from the front side of the unit casing 51 toward the rear side.
- the top plate 53 is a horizontally long, substantially rectangular metal plate-like member that constitutes the top surface portion of the outdoor unit 202.
- the left front plate 54 is a metal plate-like member mainly constituting the left front surface portion and the left surface portion of the unit casing 51, and the lower portion thereof is fixed to the bottom plate 52 with screws or the like.
- the left front plate 54 is formed with a suction port 55a for air sucked into the unit casing 51 by the outdoor fan 32. Further, the left front plate 54 is provided with an air outlet 54a through which air taken in from the back side and the left side of the mute casing 51 by the outdoor fan 32 is blown out.
- a fan grill 60 is provided at the air outlet 54a.
- the right front plate 56 is a metal plate-like member mainly constituting the right front portion and the right front portion of the unit casing 51, and the lower portion thereof is fixed to the bottom plate 52 with screws or the like. Further, the left end of the right front plate 56 is fixed to the right end of the left front plate 54 with a screw or the like.
- the right side plate 57 is a metal plate-like member that mainly constitutes the rear portion and the right back portion of the right side surface of the unit casing 51, and the lower portion thereof is fixed to the bottom plate 52 with screws or the like. Between the rear end portion of the left front plate 54 and the rear side end portion of the right side plate 57 and the left and right direction, an air inlet 55b that is sucked into the unit casing 51 by the outdoor fan 32 is formed.
- the partition plate 58 is a vertically extending metal plate member disposed on the bottom plate 52, and is disposed so as to partition the internal space of the unit casing 51 into two left and right spaces.
- the partition plate 58 is formed with a flat portion 58a that forms the upper portion of the partition plate 58 and a curved portion 58b that forms the lower portion of the partition plate 58.
- the flat portion 58a extends straightly because the right end portion of the heat exchanger 26 (that is, the tube plate 26a of the heat exchanger 26) is also directed toward the right end portion of the left front plate 54.
- the curved portion 58b is a portion that is curved so as to protrude from the flat portion 58a to the blower chamber S side in a plan view of the unit casing 51.
- the lower part of the partition plate 58 is fixed to the bottom plate 52 with screws or the like.
- the right end of the left front plate 54 is fixed to the front end of the partition plate 58 with screws or the like.
- the rear side end of the right side plate 57 is fixed to the tube plate 26a of the heat exchanger 26 with screws or the like.
- the internal space of the unit casing 51 is divided into the blower chamber S and the machine chamber S by the partition plate 58. More specifically, the blower chamber S includes a bottom plate 52 and a top plate 5
- Machine room S consists of bottom plate 52, top plate 53, right front plate 56, and right side
- the space surrounded by the plate 57 and the partition plate 58, and the compressor 22 and the refrigerant circuit components and the electrical component unit 81 are arranged.
- the inside of the machine room S can be seen by removing the right front plate 56.
- the compressor 22 is a hermetic compressor in which a compressor motor 22a (see FIG. 31) is built in a housing, and is disposed in the machine room S.
- the compressor motor 22a is a hermetic compressor in which a compressor motor 22a (see FIG. 31) is built in a housing, and is disposed in the machine room S.
- the compressor motor 22a is a hermetic compressor in which a compressor motor 22a (see FIG. 31) is built in a housing, and is disposed in the machine room S.
- the compressor motor 22a see FIG. 31
- the compressor 22 has a vertical cylindrical shape having a height approximately half of the total height of the unit casing 51, and a lower portion thereof is fixed to the bottom plate 52. Further, the compressor 22 is disposed near the center of the unit casing 51 in the front-rear direction and on the right side of the unit casing 51 in the left-right direction in the plan view of the unit casing 51. More specifically, the compressor 22 is disposed in the vicinity of the curved portion 58b formed in the lower portion of the partition plate 58. For this reason, the compressor 22 is disposed so as to overlap the flat portion 58a formed on the upper portion of the partition plate 58 in the plan view of the unit casing 51.
- the structures of the outdoor heat exchanger 26 and the outdoor fan 32 are the same as the structures of the outdoor heat exchanger 26 and the outdoor fan 32 of the first and second embodiments, and thus the description thereof is omitted here.
- the refrigerant circuit components are mainly composed of an intake pipe 21, a discharge pipe 23, a four-way switching valve 24, a first gas refrigerant pipe 25, a liquid refrigerant pipe 27, an expansion valve 28, and a liquid side closing valve 29.
- the outdoor refrigerant circuit 110b (excluding the compressor 22 and the outdoor heat exchanger 26) including the second gas refrigerant pipe 30, the gas side closing valve 31, and the accumulator 33 is a component.
- the refrigerant circuit components are mainly arranged on the front side, upper side, right side and rear side of the compressor 22 in the machine room S.
- the electrical component unit 81 includes various electrical components such as a control P board and an inverter board including a microcomputer for performing operation control.
- the electrical component unit 81 is mainly the first electrical component unit 82 and the second electrical component disposed in the upper space of the machine room S.
- the second electrical component unit 83 is an inverter board on which high heat-generating parts that generate a large amount of heat during operation, including an inverter control element that also has power such as power transistors and diodes, are mounted. Board body with various high heat generation components including 8 Has 3a. In the present embodiment, an inverter control element used for inverter control of the compressor motor 22a is mounted on the board body 83a.
- the second electrical component boot 83 is in contact with the partition plate 58 on the back side of the first electrical component unit 82.
- the second electrical component unit 83 is fixed to the flat portion 58a formed on the upper portion of the partition plate 58, whereby various types of components including the rear surface of the substrate body 83a or the inverter control element are included. High heat-generating parts are in contact with the machine room S side of the flat part 58a.
- the outdoor unit 2 of the present embodiment is provided with a cooling structure in which exhaust heat generated by high heat generating components such as an inverter control element is dissipated through the partition plate 58.
- Various high heat-generating components including the back surface of the substrate body 83a or the inverter control element may be in direct contact with the outer peripheral surface of the partition plate 58, or may be in contact with each other through a metal plate member. .
- first electrical component unit 82 is the same as the configuration of the first electrical component unit 82 of the first and second embodiments, and thus the description thereof is omitted here.
- the electric component unit 81 of the outdoor unit 202 is energized for the operation control of the air conditioner 201, and the high heat generating component such as the inverter control element of the second electric component unit 83 is energized. Is fever.
- the second electrical component unit 83 (specifically, the rear surface of the substrate body 83a or a high heat generating component including the inverter control element) as the inverter board is mounted on the partition plate 58.
- the second electrical component unit 83 as an inverter board is brought into contact with the machine room S side surface of the partition plate 58, whereby
- the cooling structure that dissipates the exhaust heat generated by the data control element from the partition plate 58 is adopted, it is possible to omit the heat dissipating fins that protrude toward the blower chamber side like the conventional outdoor unit. As a result, the second electrical component unit 83 can be freely arranged in the machine room S.
- the second electrical component unit 83 as the inverter board is brought into contact with the machine room S side surface of the partition plate 58, whereby
- the second electrical component unit 83 is not limited to this, and the second electrical component unit 83 is an outer plate of the unit casing 51. Bottom, top, right front, right side or right back forming S (in this embodiment
- a cooling structure that dissipates the exhaust heat generated by the inverter control element as well as the outer plate force of the unit casing 51 by contacting the inner surface of the bottom plate 52, the top plate 53, the right front plate 56, or the right side plate 57) may be adopted.
- the exhaust heat generated by the inverter control element is cooled mainly by natural convection heat transfer of the outdoor air, so the heat transfer efficiency is slightly inferior to the case where it is in contact with the partition plate 58.
- FIG. 35 is a plan view of the outdoor unit 2 that is applied to Modification 1 (when the second electrical component unit 83 is brought into contact with the inner surface of the side surface of the unit casing 51).
- the partition plate 158 does not have a portion corresponding to the flat portion 58a of the partition plate 58 shown in FIGS. 32 to 34, and the curved portion of the partition plate 58 is entirely formed in the vertical direction. It has the same shape as 58b.
- the second electrical component unit 83 is detachably attached to the right side plate 57.
- a locking claw 57a extending upward is provided on the inner surface of the right side plate 57, and a locking claw 57a is inserted into the back surface of the board body 83a of the second electrical component unit 83.
- the attachment member 83b having a possible square hole, a structure capable of detachably attaching the substrate body 83a to the right side plate 57 can be obtained.
- FIG. 36 is a plan view showing a structure for attaching the second electrical component unit 83 to the right side plate 57 of the unit casing 51.
- FIG. FIG. 37 is a front view showing a structure for attaching the second electrical component unit 83 to the right side plate 57 of the unit casing 51.
- a gap is formed between the back surface of the substrate body 83a and the inner surface of the right side plate 57, and the ability to dissipate the exhaust heat generated by the inverter control element. Therefore, it is desirable to fill the gap between the back surface of the substrate body 83a and the inner surface of the right side plate 57 with a material having good heat conduction such as silicon oil.
- the space in the machine room S is near the right front of the unit casing 51.
- FIG. 38 is a right side view of the outdoor unit 202 that is applied to Modification 1 (when the second electrical component unit 83 is brought into contact with the inner surface of the front surface of the unit casing 51).
- the electrical component unit 83 is detachably attached to the right front plate 56.
- the locking claw 56a extending upward to the inner surface of the right front plate 56 is provided.
- a mounting member 83b having a square hole into which the locking claw 56a can be inserted is provided on the back surface of the board body 83a of the second electrical component unit 83, so that the board body 83a is detachably attached to the right front plate 56.
- the rear surface of the substrate body 83a and the inner side of the right front plate 56 are the same as when the second electrical component unit 83 is brought into contact with the right side surface of the unit casing 51 described above. It is desirable to fill the gap between the surfaces with a material having good heat conduction such as silicon oil.
- the second electrical component is located near the bottom of the unit casing 51 in the space in the machine room S.
- FIG. 39 is a partial perspective view of the outdoor unit 202 acting on Modification 1 (when the second electrical component unit 83 is brought into contact with the inner surface of the bottom surface of the unit casing 51) as viewed from the right frontal force (top plate 53 The front plates 54 and 56, the side plates 57, the refrigerant circuit components, and the first electrical component unit 82 are removed).
- the second electrical component unit 83 is installed between the compressor 22 and the bottom plate 52 in the vertical direction, and during maintenance.
- the second electrical component unit 83 is detachably attached to the bottom plate 52.
- a pedestal 52b for installing the compressor 22 is provided on the bottom plate 52, and the second electrical component unit 83 is installed between the compressor 22 and the bottom plate 52 in the vertical direction.
- FIG. 40 is a front view showing a structure in which the second electrical component unit 83 is attached between the compressor 22 and the bottom plate 52 of the unit casing 51 in the vertical direction.
- the second electrical component unit 83 serving as an inverter board is connected to the outer plate of the unit casing 51 (specifically, the right front plate 56, the right side plate 57, the bottom plate 52). Etc.) or the machine room S side of the partition plate 58,
- the cooling structure that dissipates the heat generated by the inverter control element from the outer plate or partition plate 58 of the unit casing 51 is adopted, but the outer casing or partition of the unit casing 51 in contact with the second electrical component unit 83 is used. A part of the refrigerant circuit component may be brought into contact with the plate 58. In this case, since the outer plate or the partition plate 58 of the unit casing 51 can be cooled by the refrigerant circulating in the refrigerant circuit 110, it is possible to promote the dissipation of exhaust heat generated by the inverter control element.
- the accumulator 33 as a liquid reservoir is brought into contact with the machine chamber S side surface of the partition plate 58 (specifically, the flat portion 58a).
- FIG. 41 is a plan view of the outdoor unit 202 that works on the second modification (when the accumulator 33 is brought into contact with the machine room S side surface of the partition plate 58).
- Fig. 42 shows a modification 2 (when accumulator 33 is brought into contact with side surface S of machine room S of partition plate 58.
- FIG. 1 A perspective view of the outdoor unit 202 acting from the right front (top plate 53, front plates 54, 56, side plate 57, refrigerant circuit components other than accumulator 33, and first electrical component unit 82. This is shown in FIG.
- the suction plate pipe 21a constituting a part of the suction pipe 21 can be brought into contact with the side surface of the machine room S of the partition plate 58.
- the inlet plate pipe 21a is a portion of the suction pipe 21 between the four-way selector valve 24 and the accumulator 33 (see FIG. 41) by brazing a pair of plate materials, etc. They are pasted together to form a flow path inside.
- a contact surface 21b having a shape along the side surface of the machine room S of the partition plate 58 is formed in the suction plate pipe 21a.
- FIG. 43 shows a second modification (the suction plate pipe 21a is brought into contact with the machine room S side surface of the partition plate 58.
- FIG. 5 is a plan view of the outdoor unit 202 that is effective when the refrigerant circuit components other than the top plate 53 and the suction plate pipe 21a are removed.
- FIG. 44 is a view (partially cut away) of the suction plate pipe 21a viewed from the direction A in FIG.
- the cutting plate 58 can be cooled using low-pressure gas refrigerant passing through the suction plate pipe 21a.
- the suction plate pipe 21a is provided with a contact surface 21b having a shape along the side surface of the machine room S of the partition plate 58, and the suction plate pipe 21a.
- the contact area between a and the partition plate 58 can be increased, the cooling efficiency of the partition plate 58 is increased, and the dissipation of exhaust heat generated by the inverter control element can be promoted.
- the second electrical component unit 83 when the second electrical component unit 83 is brought into contact with the inner surface of the right side surface of the unit casing 51 (in this embodiment, the right side plate 57) (see FIG. 45), as shown in FIG.
- the accumulator 33 as a liquid reservoir can be brought into contact with the inner surface of the right side surface of the unit casing 51 (in this embodiment, the right side plate 57).
- the accumulator 33 is a vertical cylindrical container, and is fixed to the right side plate 57 by a band member 33a or the like.
- the suction plate pipe 21a shown in FIG. 44 may be brought into contact with the inner surface of the right side surface of the unit casing 51 (in this embodiment, the right side plate 57) instead of the accumulator 33. Good. Even when the second electrical component unit 83 is brought into contact with the inner surface of the right front surface of the unit casing 51 (in this embodiment, the right front plate 56) (see FIG. 38), the accumulator 33 and the suction plate pipe 21a are The unit casing 51 may be brought into contact with the inner surface of the right front surface (in this embodiment, the right front plate 56).
- the accumulator 33 as a liquid reservoir can be brought into contact with the inner surface of the bottom surface of the unit casing 51, as shown in FIG.
- the accumulator 33 is a horizontal cylindrical container.
- 46 is a front view showing a structure in which the second electrical component unit 83 is attached between the compressor 22 and the bottom plate 52 of the unit casing 51 in the vertical direction, and the accumulator 33 is installed in the vicinity thereof.
- the bottom surface of the unit casing 51 can be cooled by using the low-pressure gas refrigerant passing through the accumulator 33 and the low-pressure liquid refrigerant accumulated in the accumulator 33, so that the exhaust generated by the inverter control element is generated. It can promote heat dissipation.
- the suction plate pipe 21a shown in FIG. 44 may be brought into contact with the inner surface of the unit casing 51 (in this embodiment, the bottom plate 52).
- FIG. 47 is a schematic refrigerant circuit diagram of an air-conditioning apparatus 301 in which an outdoor unit of an air-conditioning apparatus according to an embodiment of the present invention is employed.
- the air conditioner 301 is a so-called separate type air conditioner, and mainly includes the outdoor unit 302, the indoor unit 4, the liquid refrigerant communication pipe 5 that connects the outdoor unit 302 and the indoor unit 4, and the gas refrigerant communication. And a pipe 6 and constitutes a vapor compression refrigerant circuit 110.
- the indoor unit 4 is installed indoors, and includes an indoor-side refrigerant circuit 10a that constitutes a part of the refrigerant circuit 110.
- This indoor refrigerant circuit 10a mainly has an indoor heat exchanger 41.
- the configuration of the indoor refrigerant circuit 10a is the same as the configuration of the indoor refrigerant circuit 10a of the first to third embodiments, and thus the description thereof is omitted here.
- the outdoor unit 302 is installed outside and includes an outdoor refrigerant circuit 110b that constitutes a part of the refrigerant circuit 110.
- This outdoor refrigerant circuit 110b mainly includes a compressor 22, a four-way switching valve 24, an outdoor heat exchange 26, an expansion valve 28, a liquid side closing valve 29, a gas side closing valve 31, and an accumulator. 33.
- the configuration of the outdoor refrigerant circuit 110b is the same as the configuration of the outdoor refrigerant circuit 110b of the second embodiment, and a description thereof will be omitted here.
- FIG. 48 is a plan view of the outdoor unit 302 (shown with the top plate 53 and refrigerant circuit components removed).
- FIG. 49 is a front view of the outdoor unit 302 (shown with the left and right front plates 54 and 56 and refrigerant circuit components removed).
- FIG. 50 is a perspective view of the outdoor unit 302 with the right diagonal front force also shown (shown with the top plate 53, front plates 54 and 56, side plates 57, refrigerant circuit components, and the first electrical component unit 82 removed).
- the outdoor unit 2 has a structure (so-called trunk type structure) in which the interior of a substantially rectangular parallelepiped box-shaped unit casing 51 is divided into a blower room S and a machine room S by a partition plate 58 extending vertically.
- the outdoor refrigerant circuit 110b is configured together with the substantially box-shaped unit casing 51, the outdoor heat exchanger 26, the outdoor fan 32, the compressor 22, the outdoor heat exchanger 26, and the compressor 22.
- a refrigerant circuit component (see FIG. 47) and an electrical component unit 81 for controlling the operation of the outdoor unit 302 are provided.
- the refrigerant circuit components are mainly composed of an intake pipe 21, a discharge pipe 23, a four-way switching valve 24, a first gas refrigerant pipe 25, a liquid refrigerant pipe 27, an expansion valve 28, and a liquid side closing valve 29.
- the outdoor refrigerant circuit 110b (excluding the compressor 22 and the outdoor heat exchanger 26) including the second gas refrigerant pipe 30, the gas side closing valve 31, and the accumulator 33 is a component.
- the refrigerant circuit components are mainly arranged on the front side, upper side, right side and rear side of the compressor 22 in the machine room S.
- the electrical component unit 81 includes various electrical components such as a control P board and an inverter board including a microcomputer for performing operation control.
- the electrical component unit 81 is mainly the first electrical component unit 82 and the second electrical component disposed in the upper space of the machine room S.
- the second electrical component unit 83 is an inverter board on which high heat-generating parts that generate a large amount of heat during operation, including inverter control elements that also have power transistors, diodes, etc., are mounted. It has a substrate body 83 3a on which a heat generating component is mounted. In the present embodiment, an inverter control element used for inverter control of the compressor motor 22a is mounted on the board body 83a.
- the second electrical component cue 83 is in a state in which various high heat-generating components including the back surface of the substrate body 83a or the inverter control element are in contact with the heat storage 91 provided in contact with the machine room S side surface of the partition plate 58. In the machine
- Various high heat-generating parts may be in direct contact with the heat storage body 91 or may be in contact with each other through a metal plate member.
- the heat storage body 91 mainly includes the side surface of the machine room S of the partition plate 58.
- Heat storage material 93 In this embodiment, the heat storage material 93 is fused. It is a latent heat storage material that stores heat using the delatent heat, and its melting point is higher than the air temperature in the machine room S, which is lower than the upper limit temperature of use of the inverter control element.
- the inverter control element generates heat transiently even after the air conditioner 301 is stopped. For this reason, it is desirable to remove the transient exhaust heat generated by the inverter control element for a while even after the air conditioner 301 is stopped. Therefore, as the amount of the heat storage material 93, it is desirable to adopt an amount capable of storing a cold heat amount that can absorb the exhaust heat generated by the inverter control element after the air conditioner 301 is stopped.
- 51 is a view of the heat storage body 91 as viewed from the direction A in FIG. 48 (partially cut away).
- the second electrical component unit 83 as the inverter board is brought into contact with the heat storage body 91 provided in the machine room S, whereby the second electrical component unit
- the heat dissipating fin protruding from the partition plate 58 like the outdoor unit to the blower chamber S side is omitted.
- the configuration of the first electrical component unit 82 is the same as the configuration of the first electrical component unit 82 of the first embodiment, and a description thereof will be omitted here.
- the cooling operation and the heating operation are performed. Since the contents are the same as the cooling operation and the heating operation in the second and third embodiments described above, Then, explanation is omitted.
- the electrical component unit 81 of the outdoor unit 302 is energized to control the operation of the air conditioner 301, and the highly heat-generating component such as the inverter control element of the second electrical component unit 83 is energized. Is fever.
- the outdoor unit 302 of the present embodiment employs a structure in which the second electrical component unit 83 (specifically, the back surface of the substrate body 83a) as the inverter substrate is brought into contact with the heat storage body 91. Therefore, the second electrical component
- the waste heat generated by the inverter control element mounted on the heat sink 83 is mainly caused by melting the heat storage material 93 enclosed in the box 92 of the heat storage body 91, that is, the cold heat stored in the heat storage material 93. It is dissipated by using.
- the heat storage 91 is brought into contact with the machine room S side surface of the partition plate 58 of the unit casing 51.
- the heat storage body 91 (specifically, the surface 92a of the box body 92) is cooled by the outdoor air, and cold heat can be stored in the heat storage material 93, which promotes the dissipation of exhaust heat generated by the inverter control element. You can do it!
- the inverter control element generates heat transiently. This transient heat generation can also be efficiently performed by using the cold energy stored in the heat storage material 93. Can be dissipated.
- abnormal heating of the inverter control element can be prevented during operation of the air conditioner 301 and immediately after it is stopped.
- the second electrical component unit 83 serving as an inverter board is brought into contact with the heat storage body 91, so that exhaust heat generated by the inverter control element is transferred to the heat storage body 91. Since the cooling structure for radiating is adopted, the heat dissipating fin protruding from the partition plate 58 to the blower chamber S side like a conventional outdoor unit can be omitted. This increases the degree of freedom of arrangement of the second electrical component unit 83 in the machine room S.
- the regenerator 91 can be cooled by outdoor air flowing through 2 2. As a result, it is possible to promote the dissipation of exhaust heat generated by the inverter control element.
- the present invention is not limited to this, and the heat accumulator with which the second electrical component unit 83 is in contact is the bottom plate, top surface, right front surface, right side surface or the outer plate of the unit casing 51 that forms the machine room S.
- the inner surface of the right rear surface (in this embodiment, the bottom plate 52, the top plate 53, the right front plate 56, or the right side plate 57) may be contacted.
- the heat storage body is cooled mainly by natural convection heat transfer of the outdoor air, so the heat transfer efficiency is slightly inferior to the case where it is brought into contact with the partition plate 58. More freedom of placement of electrical component unit 83
- FIG. 52 is a plan view of the outdoor unit 302 according to Modification 1 (when the heat storage body 91 is brought into contact with the inner surface of the side surface of the unit casing 51).
- the second electrical component unit 83 and the heat storage body 91 are detachably attached to the right side plate 57.
- the space in the machine room S is near the right front of the unit casing 51.
- FIG. 53 is a right side view of the outdoor unit 302 according to Modification 1 (when the heat storage body 91 is brought into contact with the inner surface of the front surface of the unit casing 51).
- the second electrical component unit 83 and the heat storage body 91 are detachably attached to the right front plate 56.
- the second electrical component is located near the bottom of the unit casing 51 in the space in the machine room S.
- FIG. 54 is a partial perspective view of the outdoor unit 2 acting on Modification 1 (when the heat accumulator 91 is brought into contact with the inner surface of the bottom surface of the unit casing 51) with the right diagonal front force also seen (top 53, front The plates 54 and 56, the side plate 57, the refrigerant circuit components, and the first electrical component unit 82 are removed).
- the second electrical component unit 83 is installed between the compressor 22 and the bottom plate 52 in the vertical direction, and during maintenance.
- the second electrical component unit 83 is detachably attached to the bottom plate 52.
- a pedestal 52b for installing the compressor 22 is provided on the bottom plate 52, and the second electrical component unit 83 and the heat storage are provided between the compressor 22 and the bottom plate 52 in the vertical direction.
- FIG. 55 is a front view showing a structure in which the second electrical component unit 83 and the heat storage body 91 are attached between the compressor 22 and the bottom plate 52 of the unit casing 51 in the vertical direction.
- the second electrical component unit 83 serving as the inverter board is brought into contact with the heat storage body 91, so that the exhaust heat generated by the inverter control element is transferred to the heat storage body 91.
- the heat storage 91 may be brought into contact with a part of the refrigerant circuit components.
- the outer plate or finish of the unit casing 51 is circulated by the refrigerant circulating in the refrigerant circuit 110. Since the cut plate 58 can be cooled, the heat dissipation generated by the inverter control element can be promoted.
- the heat accumulator can be brought into contact with the accumulator 33 as a refrigerant circuit component.
- the accumulator 33 formed of a vertical cylindrical container is connected to the corner portion of the unit casing 51 (specifically, the right side portion and the right rear surface of the right side plate 57).
- the second electrical component unit 83 is disposed obliquely with respect to the right side surface portion and the right rear surface portion of the right side plate 57 in the plan view of the unit casing 51.
- the heat storage body 191 is inserted into the gap surrounded by the accumulator 33, the second electrical component unit 83, and the right side plate 57, the outer surface of the accumulator 33, and the rear surface of the substrate body 83a. It can be provided in contact with the inner surface of the right side plate 57.
- the heat storage body 191 includes a first heat storage body 194 facing the right side surface of the right side plate 57, and a second heat storage body 195 facing the back surface of the right side plate 57 having a mirror-symmetrical shape with the first heat storage body 194. have.
- the first heat storage body 194 is a surface 192a that contacts the inner surface of the right side surface of the right side plate 57 (in the case of the second heat storage body 195, the surface 192a contacts the inner surface of the rear surface of the right side plate 57) and the rear surface of the substrate body 83a.
- a box 192 having a surface 192b that contacts a high heat-generating component including the inverter control element and a surface 192c that contacts the outer peripheral surface of the accumulator 33 and forms a hollow space inside, and the box 192 And an enclosed heat storage material 193.
- the heat storage material 193 is the same as the heat storage material 93 described above. FIG.
- FIG. 56 is a plan view of an outdoor unit (other than the top plate 53 and the accumulator 33) that works on the second modification (when the accumulator 33 is arranged at the corner of the right side plate 57 and the accumulator 33 is brought into contact with the heat accumulator 191).
- the refrigerant circuit components are removed and shown in the figure).
- FIG. 57 is a perspective view showing the vicinity of the second electrical component unit 83 that is applied to Modification 2 (when the accumulator 33 is arranged at the corner of the right side plate and the heat accumulator 191 is brought into contact with the accumulator 33).
- the second electrical component is located near the bottom of the unit casing 51 in the space in the machine room S.
- the heat accumulator 91 is brought into contact with the inner surface of the bottom surface of the unit casing 51 (in this embodiment, the bottom plate 52) (see FIGS. 54 and 55)
- the heat storage body 291 can be brought into contact with the suction plate pipe 21a constituting a part of the suction pipe 21.
- the suction plate pipe 21a is configured such that a portion (see FIG. 47) between the four-way switching valve 24 and the accumulator 33 in the suction pipe 21 is brazed with a pair of plate members.
- the heat storage body 291 mainly has a box body 292 having a rectangular hole 292a into which the suction plate pipe 21a can be inserted and forming a hollow cylindrical space therein, and a box body. 29 2 and a heat storage material 293 sealed inside.
- the box body 292 covers the outer peripheral surface of the suction plate piping 21a with the suction plate piping 21a inserted into the rectangular hole 292a, and is a surface that contacts the rear surface of the board body 83a or a high heat generation component including the inverter control element. 29 2b and a surface 292c in contact with the bottom plate 52.
- the heat storage material 293 is the same as the heat storage materials 93 and 193. Then, in the space formed by the pedestal 52b, a state in which the suction plate pipe 21a is inserted into the rectangular hole 292a of the heat accumulator 291 and the second electrical component unit 83 are installed so as to overlap each other.
- a rail member 52a is provided in the space, and the suction plate pipe 21a is arranged along the bottom plate 52, and the side end portion of the board body 83a of the second electrical component unit 83 is placed on the surface 292b of the heat storage body 291. It may be attached so that it can slide in the front-rear direction.
- FIG. 58 is a front view showing a structure in which the suction plate pipe 21a, the heat storage element 291 and the second electrical component unit 83 are attached between the compressor 22 and the bottom plate 52 of the unit casing 51 between the upper and lower directions.
- FIG. 59 is a view of the suction plate pipe 21a as viewed in the direction B of FIG. 58 (partially cut away).
- FIG. 60 is a view (partially cut away) of the heat storage body 291 viewed from the B direction in FIG.
- the present invention is applied to an outdoor unit in which an outdoor refrigerant circuit having an accumulator as a liquid storage container is incorporated.
- the present invention may be applied to an outdoor unit in which an outdoor refrigerant circuit in which a receiver is provided in a liquid refrigerant pipe as a liquid storage container is incorporated.
- the accumulator and the suction plate piping are used as refrigerant circuit components that contact the inner surface of the outer plate of the unit casing that contacts the second electrical component unit as the inverter board or the side surface of the machine room of the partition plate.
- a high-pressure plate pipe that constitutes a part of the receiver and the liquid refrigerant pipe as shown in the above-described first embodiment and its modifications.
- a latent heat storage material that stores heat by a solid-liquid phase change is used as the heat storage material, but a solid heat storage material that stores heat by sensible heat without phase change is used. It may be used.
- the box constituting the heat storage body is omitted, and the heat storage material itself comes into contact with the second electrical component unit as the inverter board.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2006800034853A CN101111719B (zh) | 2005-02-03 | 2006-01-30 | 空调装置的室外单元 |
EP06712582.3A EP1862743B1 (en) | 2005-02-03 | 2006-01-30 | Outdoor unit of air conditioner |
ES06712582.3T ES2524302T3 (es) | 2005-02-03 | 2006-01-30 | Unidad de exterior de acondicionador de aire |
AU2006211282A AU2006211282B2 (en) | 2005-02-03 | 2006-01-30 | Outdoor unit of air conditioner |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005027238A JP3821153B2 (ja) | 2005-02-03 | 2005-02-03 | 空気調和装置の室外ユニット |
JP2005027239A JP2006214635A (ja) | 2005-02-03 | 2005-02-03 | 空気調和装置の室外ユニット |
JP2005-027239 | 2005-02-03 | ||
JP2005027237A JP2006214633A (ja) | 2005-02-03 | 2005-02-03 | 空気調和装置の室外ユニット |
JP2005027236A JP2006214632A (ja) | 2005-02-03 | 2005-02-03 | 空気調和装置の室外ユニット |
JP2005-027237 | 2005-02-03 | ||
JP2005-027236 | 2005-02-03 | ||
JP2005-027238 | 2005-02-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006082779A1 true WO2006082779A1 (ja) | 2006-08-10 |
Family
ID=36777163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/301439 WO2006082779A1 (ja) | 2005-02-03 | 2006-01-30 | 空気調和装置の室外ユニット |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP2821719A1 (ja) |
KR (1) | KR100941604B1 (ja) |
ES (1) | ES2524302T3 (ja) |
WO (1) | WO2006082779A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008057851A (ja) * | 2006-08-31 | 2008-03-13 | Daikin Ind Ltd | 冷凍装置 |
CN111380200A (zh) * | 2018-12-28 | 2020-07-07 | 珠海格力电器股份有限公司 | 壳体结构及具有其的空调器 |
WO2024075830A1 (ja) * | 2022-10-07 | 2024-04-11 | 株式会社富士通ゼネラル | 空気調和機の室外機 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4471023B2 (ja) | 2008-06-12 | 2010-06-02 | ダイキン工業株式会社 | 空気調和機 |
JP4488093B2 (ja) | 2008-07-24 | 2010-06-23 | ダイキン工業株式会社 | 空気調和機 |
KR20120135771A (ko) * | 2011-06-07 | 2012-12-17 | 엘지전자 주식회사 | 공기 조화기의 실외기 및 그 제어방법 |
WO2013094082A1 (ja) * | 2011-12-19 | 2013-06-27 | 三菱電機株式会社 | 室外機及びこの室外機を備えた冷凍サイクル装置 |
US20150282386A1 (en) * | 2014-03-27 | 2015-10-01 | Daikin Industries, Ltd. | Heat source unit of refrigerating apparatus |
JPWO2016157305A1 (ja) * | 2015-03-27 | 2017-06-29 | 三菱電機株式会社 | ヒートポンプ給湯室外機及び給湯装置 |
KR102065433B1 (ko) | 2017-11-20 | 2020-01-13 | 엘지전자 주식회사 | 가스 히트펌프 시스템의 실외기 |
DE102018114786A1 (de) * | 2018-06-20 | 2019-12-24 | Stiebel Eltron Gmbh & Co. Kg | Verfahren zum Betrieb einer Wärmepumpe und eine Kältemaschine |
CN211011738U (zh) * | 2019-11-15 | 2020-07-14 | 珠海市威诺环境技术设备有限公司 | 小型水冷冷风空调系统 |
BR112023015344A2 (pt) * | 2021-03-22 | 2023-10-03 | Daikin Ind Ltd | Unidade de componentes elétricos e unidade externa de aparelho de refrigeração |
EP4368902A1 (en) | 2022-01-28 | 2024-05-15 | Samsung Electronics Co., Ltd. | Outdoor unit of air conditioner |
KR20230116516A (ko) * | 2022-01-28 | 2023-08-04 | 삼성전자주식회사 | 공기 조화기의 실외기 |
KR20240060265A (ko) | 2022-10-28 | 2024-05-08 | 오텍캐리어 주식회사 | 혼합냉각 열교환기를 이용한 발열소자 냉각장치를 가지는 공기조화기 |
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- 2006-01-30 EP EP14176319.3A patent/EP2821719A1/en not_active Withdrawn
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CN111380200A (zh) * | 2018-12-28 | 2020-07-07 | 珠海格力电器股份有限公司 | 壳体结构及具有其的空调器 |
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Also Published As
Publication number | Publication date |
---|---|
KR20070086899A (ko) | 2007-08-27 |
ES2524302T3 (es) | 2014-12-05 |
EP1862743B1 (en) | 2014-09-03 |
EP2821719A1 (en) | 2015-01-07 |
AU2006211282A1 (en) | 2006-08-10 |
EP1862743A4 (en) | 2013-01-09 |
EP1862743A1 (en) | 2007-12-05 |
KR100941604B1 (ko) | 2010-02-11 |
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