Classifications

• • 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
  • F24F1/0007—Indoor units, e.g. fan coil units
  • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
  • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
• • 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
  • F24F1/0007—Indoor units, e.g. fan coil units
  • F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
  • F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
• • 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
  • F24F1/0007—Indoor units, e.g. fan coil units
  • F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
  • F25B41/00—Fluid-circulation arrangements
  • F25B41/40—Fluid line arrangements
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
  • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
  • F25B41/00—Fluid-circulation arrangements
  • F25B41/40—Fluid line arrangements
  • F25B41/42—Arrangements for diverging or converging flows, e.g. branch lines or junctions

Definitions

• the present invention relates to an indoor unit of an air conditioner.
• an indoor heat exchanger is divided into a plurality of heat exchange units and provided with a plurality of control valves for controlling the flow of refrigerant to each heat exchange unit.
• control valves for controlling the flow of refrigerant to each heat exchange unit.
• the present applicant has proposed an indoor unit for an air conditioner that can be downsized while having a plurality of control valves.
• a plurality of control valves are arranged at a distance in the longitudinal direction of the indoor heat exchange between the casing and the indoor heat exchange ⁇ and behind the indoor heat exchange ⁇ . .
• downsizing is achieved while providing a plurality of control valves.
• the indoor unit of the air conditioner is described for the purpose of facilitating understanding of the present invention, and is not a conventional technique more than a known technique.
• an object of the present invention is to provide an indoor unit of an air conditioner that can prevent a decrease in heat exchange efficiency without arranging a control valve in a wind passage and can reduce the casing size.
• an indoor unit for an air conditioner of the present invention includes:
• An indoor heat exchanger disposed in the casing
• Two first and second control valves disposed in the casing and on one side of the indoor heat exchanger;
• the first and second control valves may be on-off valves or expansion valves.
• the indoor heat exchange has a first heat exchange part and a second heat exchange part
• the first and second control valves are respectively disposed in pipes connecting the first heat exchange unit and the second heat exchange unit.
• the first and second control valves respectively disposed in the pipes connecting the first heat exchange unit and the second heat exchange unit are opened and closed to thereby open the first It becomes possible to control the flow of refrigerant in the heat exchange section and the second heat exchange section, and to reduce the pressure between the first heat exchange section and the second heat exchange section.
• a first port and a second port facing in directions substantially perpendicular to each other;
• a valve body between the first port and the second port
• a drive unit extending in a direction opposite to the direction of the first port and driving the valve body
• a portion near the first port of the first pipe portion connected to the first port, a portion near the second port of the second pipe portion connected to the second port, and the drive portion are substantially in a letter shape. It has a shape.
• the first and second ports facing in the same direction are provided by using approximately T-shaped first and second control valves that have a drive part that extends in the opposite direction to the direction in which the valve body is driven. Compared to the case, the degree of freedom of piping connected to the first and second control valves can be expanded.
• the first and second control valves are respectively
• a first port that is provided on the opposite side of the valve body to the valve body and facing the longitudinal direction of the valve body;
• a second port provided on the valve body and directed in a direction substantially perpendicular to the longitudinal direction of the valve body
• valve body a portion near the first port of the first pipe portion connected to the first port, and a portion near the second port of the second pipe portion connected to the second port are substantially T-shaped. I am doing.
• the valve body By using the first and second control valves that are substantially T-shaped, the degree of freedom of the piping connected to the first and second control valves can be increased.
• the second port of the first control valve and the second port of the second control valve are directed in the opposite direction and inward.
• the second pipe part connected to the first control valve and the second pipe part connected to the second control valve do not interfere with each other.
• the second port of the first control valve and the second port of the second control valve are directed in the opposite direction and directed inward, and the second port connected to the first control valve.
• the indoor unit of the air conditioner includes a direction in which the first and second control valves face the second port of the first control valve, and the second control valve.
• the second ports are arranged in the casing so that the second ports face and are substantially parallel to each other.
• the direction in which the second port of the first control valve faces and the direction in which the second port of the second control valve faces are substantially parallel.
• the first and second control valves are respectively disposed in the casing, the space occupied by the second pipe portion connected to the second port of each of the first and second control valves can be further reduced.
• the indoor unit of the air conditioner of one embodiment is the indoor unit of the air conditioner of one embodiment.
• the first pipe portion connected to the first control valve has a partial force in the vicinity of the first port in a direction substantially perpendicular to the direction in which the first port of the first control valve is directed.
• the first pipe portion connected to the second control valve has a bent portion bent in a direction substantially perpendicular to the direction in which the first port of the second control valve faces.
• the first pipe connected to each of the first and second control valves has a partial force in the vicinity of the first port.
• the direction in which the first port of the first control valve faces The bent portion of the first pipe connected to the first port of each of the first and second control valves and the portion following the bent portion are bent in the room heat. It can be easily installed in a limited space on one side of the cross.
• the indoor unit of the air conditioner is connected to the extension portion further extending from the bent portion of the first pipe portion connected to the first control valve and the second control valve.
• the extension portion that further extends the bending portion force of the first pipe portion is directed in the opposite direction and inward, and is connected to the first pipe portion and the second control valve connected to the first control valve. The connected first pipe parts do not interfere with each other.
• the extension portion further extending from the bent portion of the first pipe portion connected to the first control valve and the bent portion force of the first pipe portion connected to the second control valve.
• the further extension extends in the opposite direction and faces inward and is connected to the first control valve
• the indoor unit of the air conditioner of one embodiment includes the extension portion further extending from the bent portion of the first pipe portion of the first control valve, and the first pie of the second control valve.
• the extension portion further extending from the bent portion of the hook portion is substantially parallel.
• the extension portion that further extends the bending portion force of the first pipe portion of the first control valve, and the extension portion that further extends from the bending portion of the first pipe portion of the second control valve By making them substantially parallel, the space occupied by the first pipe portions of the first and second control valves can be made smaller.
• the indoor unit of the air conditioner of one embodiment includes a driving direction of the valve body driven by the driving unit of the first control valve and the driving unit of the second control valve.
• the drive direction of the valve element driven by the is substantially parallel.
• the driving direction of the valve element driven by the driving unit of the first control valve and the driving direction of the valve element driven by the driving unit of the second control valve are substantially parallel.
• the main bodies (including the drive unit and the valve body) of the first and second control valves can be brought close to each other, and the space occupied in the whole can be further reduced.
• the first and second control valves are arranged along the front-rear direction in a front view when the casing is installed.
• the first and second control valves are arranged in the casing along the front-rear direction in the front view in the installation state of the casing, so that one side of the indoor heat exchanger is arranged.
• the first and second control valves can be arranged using the limited space effectively.
• the indoor unit of the air conditioner of the present invention it is possible to prevent a reduction in heat exchange efficiency without arranging a control valve in the air passage, and to reduce the size of the casing.
• An indoor unit of an air conditioner can be realized.
• by opening and closing the first and second control valves respectively disposed in the pipes connecting the first heat exchange unit and the second heat exchange unit It is possible to control the flow of refrigerant in the first heat exchange section and the second heat exchange section, and to reduce the pressure between the first heat exchange section and the second heat exchange section. Capability control is possible.
• the first port and the second port facing in directions substantially perpendicular to each other, the valve body between the first port and the second port, and the first port
• the first and second control valves with a substantially T shape, which have a drive part that drives the valve body by extending in the opposite direction to the direction of the first and second ports, Compared with the case where it is provided, the degree of freedom of piping connected to the first and second control valves can be increased.
• the valve body having a long shape in the arrangement direction of the valve body and the drive unit for driving the valve body, and the vicinity of the first port of the first pipe portion connected to the first port Pipe connected to the 1st and 2nd control valve by using the 1st and 2nd control valve whose part and the vicinity of the 2nd port of the 2nd pipe part connected to the 2nd port are approximately T-shaped
• the degree of freedom can be expanded.
• the second port of the first control valve and the second port of the second control valve are not on the same straight line as the force directed in the opposite direction and inward.
• the second pipe connected to the control valve and the second pipe connected to the second control valve are connected to the respective second ports of the first and second control valves by preventing interference with each other.
• the second pipe parts can be brought close to each other, and the space occupied in the whole can be further reduced.
• the direction in which the second port of the first control valve faces is substantially parallel to the direction in which the second port of the second control valve faces.
• the first pipe portion connected to each of the first and second control valves Force in the vicinity of the first port.
• the first port of the first control valve faces.
• the bent portion of the first pipe connected to the first port of each of the first and second control valves and the subsequent portion are connected to the indoor heat. It can be easily installed in a limited space on one side of the cross.
• the bent portion of the first pipe connected to the first control valve is further extended and the bent portion of the first pipe connected to the second control valve.
• the extension part that extends further means the first pipe part connected to the first control valve and the first pipe part connected to the second control valve, which are not on the same straight line as the force directed in the opposite direction and inward.
• the extension portion further extending from the bent portion of the first pipe portion of the first control valve and the extension portion further extending from the bent portion of the first pipe portion of the second control valve.
• the drive direction of the valve body driven by the drive unit of the first control valve and the drive direction of the valve body driven by the drive unit of the second control valve are substantially the same.
• the main bodies (including the drive unit and the valve body) of the first and second control valves can be brought close to each other, and the space occupied by the whole can be further reduced.
• the first and second control valves are arranged in the casing along the front-rear direction in a front view in the installed state of the casing, whereby one of the indoor heat exchangers is arranged.
• Two first and second control valves can be arranged by effectively using the limited space on the side.
• FIG. 1 is a circuit diagram of an indoor unit and an outdoor unit of an air conditioner according to an embodiment of the present invention.
• FIG. 2 is a perspective view of the indoor unit of the air conditioner.
• FIG. 3 is a front view of the electromagnetic valve assembly of the indoor unit.
• FIG. 4 is a right side view of the solenoid valve assembly of the indoor unit.
• FIG. 5 is a left side view of the solenoid valve assembly of the indoor unit.
• FIG. 6 is a top view of the electromagnetic valve assembly of the indoor unit.
• FIG. 1 is a circuit diagram of an indoor unit and an outdoor unit of an air conditioner according to an embodiment of the present invention.
• 1 is an outdoor unit
• 2 is an indoor unit.
• the outdoor unit 1 of the air conditioner of this embodiment includes a compressor 10, a four-way valve 11, an outdoor heat exchanger 12, an electric expansion valve 13, a filter 14, A closing valve 15, 19, an accumulator 20, and an outdoor fan 21 are provided.
• the indoor unit 2 includes a first heat exchange unit 16, first and second electromagnetic valves 17A and 17B as examples of the first and second control valves, a second heat exchange unit 18, and an indoor fan. And 22.
• the first and second electromagnetic valves 17A and 17B do not become fully closed in the closing operation, but have a throttle having a predetermined opening area, and function as pressure reducing means.
• One end of the compressor 10 is connected to one end of the four-way valve 11 on the discharge side, and the other end of the four-way valve 11 is connected to one end of the outdoor heat exchanger 12.
• One end of an electric expansion valve 13 is connected to the other end of the outdoor heat exchanger 12, and one end of a filter 14 is connected to the other end of the electric expansion valve 13.
• one end of the closing valve 15 is connected to the other end of the filter 14, and one end of the first heat exchange unit 16 is connected to the other end of the closing valve 15 via a connecting pipe L1.
• first and second solenoid valves 17A and 17B One end of each of the first and second solenoid valves 17A and 17B is connected to the other end of the first heat exchange section 16, and the other end of the first and second solenoid valves 17A and 17B is connected to the second heat exchange section 18. Are connected to one end of each.
• One end of the closing valve 19 is connected to the other end of the second heat exchanging portion 18 via the connecting pipe L2, and the other end of the closing valve 19 is connected to the suction side of the compressor 10 via the four-way valve 11 and the accumulator 20. Connected to.
• the compressor 10 the four-way valve 11, the outdoor heat exchanger 12, the electric expansion valve 13, the filter 14, the closing valve 15, the first heat exchange unit 16, the first electromagnetic valve 17A, the second electromagnetic valve 17B, A refrigerant circuit is formed by the second heat exchange section 18, the closing valve 19 and the accumulator 20.
• the four-way valve 11 is switched to the position of the solid line, the electric expansion valve 13 is opened to a predetermined opening, and the first and second electromagnetic valves are opened. After the valves 17A and 17B are opened, the compressor 10 starts operating. Then, the high-temperature and high-pressure gas refrigerant discharged from the compressor 10 is condensed in the outdoor heat exchanger 12 by heat exchange with the outside air.
• the liquid refrigerant which has been expanded by the electric expansion valve 13 to become low temperature and low pressure, flows into the first and second heat exchange sections 16, 18 through the filter 14, the closing valve 15, and the communication pipe L1, Second heat
• the liquid refrigerant flowing into the exchange parts 16, 18 evaporates by heat exchange with room air and cools the room.
• the gas refrigerant evaporated in the first and second heat exchange units 16 and 18 returns to the suction side of the compressor 10 through the connecting pipe L2, the shut-off valve 19, the four-way valve 11 and the accumulator 20.
• the four-way valve 11 is switched to the dotted line position, and the electric expansion valve 13 is opened to a predetermined opening and the first and second solenoid valves are opened as in the cooling operation.
• the compressor 10 is started to operate. Below, the room is heated in the reverse cycle of the refrigeration cycle during cooling operation.
• the four-way valve 11 is switched to the position of the solid line, the electric expansion valve 13 is fully opened, and the first and second electromagnetic valves 17A and 17B are closed to a predetermined opening. After the area is reduced, the compressor 10 is started. Then, the high-temperature and high-pressure gas refrigerant discharged from the compressor 10 condenses in the outdoor heat exchange 12 and the first heat exchange unit 16 by heat exchange with the outside air.
• the liquid refrigerant that has been expanded by the first and second solenoid valves 17 ⁇ , 17 ⁇ ⁇ to low temperature and low pressure flows into the second heat exchange unit 18, and the liquid refrigerant that has flowed into the second heat exchange unit 18 is separated from the indoor air. It evaporates by heat exchange.
• the gas refrigerant evaporated in the second heat exchange section 18 returns to the suction side of the compressor 10 via the connecting pipe L2, the shut-off valve 19, the four-way valve 11 and the accumulator 20.
• the indoor heat is heated by the first heat exchange unit 16 that functions as a condenser in the indoor unit 2 and is cooled by the second heat exchange unit 18 that functions as an evaporator. Therefore, dehumidification is performed without lowering the room temperature.
• FIG. 2 is a perspective view of the indoor unit 2 of the air conditioner.
• the indoor unit 2 of the air conditioner includes a bottom frame 3 and a front panel 4 that is detachably attached to the front side of the bottom frame 3 as shown in FIG.
• the bottom frame 3 and the front panel 4 constitute a casing.
• a second heat exchanging portion 18 (18 mm and 18 mm in FIG. 2) is arranged on the front side of the bottom frame 3, and the first heat exchanging section having a substantially U-shaped cross section on the rear side of the second heat exchanging portion 18.
• Part 16 (16 ⁇ and 16 ⁇ in Fig. 2) is arranged.
• the first heat exchange section 16 and the second heat exchange section 18 constitute indoor heat exchange.
• An electrical component box 25 is arranged on the right side of the indoor heat exchanger.
• the solenoid valve assembly 30 having the first and second solenoid valves 17A and 17B is arranged in the piping space between the indoor heat exchanger ⁇ and the electrical component box 25. Has been established.
• 3 to 6 show a front view, a right side view, a left side view, and a top view of the electromagnetic valve assembly 30, respectively.
• the solenoid valve assembly 30 includes a first solenoid valve 17A, a second solenoid valve 17B, a first shunt 33, and a second shunt 43. Yes.
• the first and second solenoid valves 17A and 17B are provided with a valve body housing portion 6 lb for housing the valve body 52, as shown in the enlarged view of the main part surrounded by the lower right circle in FIG. And a housing 61 composed of a plunger housing portion 6 la for housing a plunger 51 as an example of a drive portion, a solenoid coil 64 for driving the plunger 51 to actuate the valve body 52, and the housing 61.
• 52 A passage 61c opened and closed by 2
• a first pipe portion 62 connected to the first port 65 at one end of the passage 61c
• a second pipe at the other end of the passage 61c so as to be substantially orthogonal to the first pipe portion 62.
• the valve body 52 is in the intersection region between the first pipe portion 62 and the second pipe portion 63, and the plunger 51 drives the valve body 52 along the extending direction of the first pipe portion 62.
• the plunger 51, the valve body 52, and the housing 61 constitute a valve body that is long and shaped in the arrangement direction of the valve body 52 and the plunger 51.
• the connecting portions of the plunger 51, the valve body 52, and the first noise portion 62 are arranged linearly.
• the arrangement direction of the connection portion between the plunger 51, the valve body 52 and the first pipe portion 62 on the first control valve 17A side, and the plunger 51, valve body 52 and the first pipe portion 62 on the second control valve 17B side are arranged.
• the first and second solenoid valves 17A and 17B are arranged so that the arrangement direction of the connecting portions is substantially parallel to each other.
• the second pipe portion 63 of the first control valve 17A extends toward the second control valve 17B, and the second pipe portion 63 of the second control valve 17B is connected to the second control valve 17A. It extends toward the first control valve 17A so as not to hit the pipe portion 63.
• the first pipe portion 62 of the first control valve 17A is connected to one end of the pipe 32, and the other end of the noise 32 is connected to the first port of the first flow divider 33.
• the first flow divider 33 is, for example, a refrigerant that flows in from the first port on the inlet side and flows out from the second and third ports on the outlet side. work). 1st above
• the second port of the flow distributor 33 is connected to the heat transfer pipe (not shown) of the second heat exchange section 18 via the pipe 34, and the second heat of the first flow divider 33 is connected to the second heat exchange pipe 18 via the pipe 35. It is connected to the heat transfer tube (not shown) of the exchange unit 18.
• a temperature thermistor 50 is attached to the Neuve 35.
• one end of the second pipe portion 63 of the first control valve 17A is connected to a heat transfer tube (not shown) of the first heat exchange portion 16 via the pipe 31.
• one end of the first pipe portion 62 of the second control valve 17B is connected to one end of the pipe 42, and the other end of the noise 42 is connected to the first port of the second flow divider 43.
• the second flow divider 43 for example, the refrigerant flowing in from the first port on the inlet side is diverted and flows out from the second and third ports on the outlet side (if the refrigerant flows in the opposite direction, they merge) Work as a container).
• the second port of the second flow divider 43 is connected to a heat transfer tube (not shown) of the second heat exchange unit 18 via a pipe 44, and the third port of the second flow divider 43 is connected to a second port via a pipe 45. 2 It is connected to the heat transfer tube (not shown) of the heat exchanger 18.
• one end of the second pipe portion 63 of the second control valve 17B is connected to a heat transfer tube (not shown) of the first heat exchange portion 16 through a pipe 41.
• first and second solenoid valves are covered by covering the piping portions around the first and second solenoid valves 17A and 17B of the solenoid valve assembly 30 with a covering portion 71 using butyl rubber tape or putty.
• the space between 17A and 17B is fixed.
• the first and second current dividers 33 and 43 are covered with a covering portion 72 using butyl rubber tape or putty.
• the two first and second electromagnetic valves 17A, 2 in the casing (3,4) and on one side of the indoor heat exchanger (16, 18) By disposing 17B, it is possible to prevent the heat exchange efficiency from being lowered without disposing the control valve (17A, 17B) in the wind passage, and to reduce the size of the casing (3,4).
• first and second electromagnetic valves 17A and 17B respectively disposed in the pipes connecting the first heat exchange unit 16 and the second heat exchange unit 18 are opened and closed, thereby It is possible to control the flow of refrigerant in the first heat exchange unit 16 and the second heat exchange unit 18.
• the reheat dehumidification operation can be performed by reducing the pressure between the first heat exchange unit 16 and the second heat exchange unit 18 using the first and second solenoid valves 17A and 17B. .
• first port 65 and the second port 66 that face in directions substantially orthogonal to each other, the valve body 52 between the first port 65 and the second port 66, and the first port 65 In the opposite direction
• a plunger 51 that extends to drive the valve body 52, and includes a valve body that includes the plunger 51, the valve body 52, and the housing 61, and a first port 65 of the first pipe portion 62 that is connected to the first port 65.
• the substantially T-shaped first and second solenoid valves 17A and 17B the vicinity of the second port 66 and the vicinity of the second port 66 of the second pipe portion 63 connected to the second port 66 are directed in the same direction.
• the degree of freedom of piping connected to the first and second solenoid valves 17A and 17B can be expanded compared to the case where the first and second ports are provided.
• the second port 66 of the first electromagnetic valve 17A and the second port 66 of the second electromagnetic valve 17B are not in the same line but in the reverse direction and the inwardly directed force.
• each of the first and second electromagnetic valves 17A and 17B can be prevented.
• the second pipe parts 63 connected to the second port 66 can be brought close to each other, and the space occupied in the whole can be further reduced.
• the casing (3) is arranged so that the direction in which the second port 66 of the first solenoid valve 17A faces and the direction in which the second port 66 of the second solenoid valve 17B faces are substantially parallel. , 4), the first and second solenoid valves 17A, 17B are arranged respectively !, thereby the second pipe connected to the second port 66 of each of the first, second solenoid valves 17A, 17B.
• the space occupied by the part 63 can be reduced.
• the second pipe portion 63 connected to the second port 66 of the first electromagnetic valve 17A and the second pipe portion 63 connected to the second port 66 of the second electromagnetic valve 17B are substantially parallel to each other.
• first pipe portion 62 connected to each of the first and second electromagnetic valves 17A and 17B has a partial force in the vicinity of the first port 65.
• the bent portion of the first pipe portion 62 connected to the first port 65 of each of the first and second solenoid valves 17A, 17B by having a bent portion bent in a direction substantially perpendicular to the direction And the following part can be easily arranged in a limited space on one side of the indoor heat exchanger (16, 18)
• the bending portion force of the first pipe portion 62 connected to the first electromagnetic valve 17A and the bending portion force of the first pipe portion 62 connected to the second electromagnetic valve 17B are further increased.
• the extension extending in the direction of the By preventing the first pipe part 62 connected to the solenoid valve 17A and the first pipe part 62 connected to the second solenoid valve 17B from interfering with each other, the first and second solenoid valves 17A and 17B
• the bent portion of the first pipe portion 62 connected to each first port 65 and the extended portion where the bent portion force further extends can be brought close to each other, and the space occupied by the whole can be further reduced.
• an extension portion where the bending portion force of the first pipe portion 62 of the first electromagnetic valve 17A further extends and an extension portion where the bending portion force of the first pipe portion 62 of the second electromagnetic valve 17B further extends are substantially. By making them parallel, the space occupied by the first pipe portions 62 of the first and second electromagnetic valves 17A and 17B can be reduced.
• the driving direction of the valve body 52 driven by the plunger 51 of the first electromagnetic valve 17A and the driving direction of the valve body 52 driven by the plunger 51 of the second electromagnetic valve 17B are substantially parallel.
• the valve bodies of the first and second solenoid valves 17A and 17B (including the plunger 51, the valve body 52, and the housing 61) can be brought close to each other, thereby reducing the space occupied by the whole. .
• first and second solenoid valves 17A, 17B are arranged in the casing (3,4) along the front-rear direction in the front view in the installed state of the casing (3,4), Two first and second solenoid valves 17A and 17B can be arranged by effectively utilizing the limited space on one side of the heat exchanger.
• the first and second heats are opened by fully opening the electromagnetic valve in the cooling operation (or heating operation). Pressure loss becomes a problem when the exchange is used as an evaporator (or condenser).
• two first and second electromagnetic valves 17A and 17B are disposed between the first and second heat exchange units 16 and 18. , Pressure loss can be reduced, and capacity reduction can be prevented.
• the air conditioner indoor unit using the first and second electromagnetic valves 17A and 17B which are expansion valves, is described as an example of the first and second control valves.
• the second control valve is not limited to this, and may be another control valve such as an on-off valve.
• the first and second electromagnetic valves 17A and 17B are an air conditioner in which one side of the indoor heat exchanger ⁇ is arranged. I explained about indoor units.
• the present invention may be applied to an indoor unit of an air conditioner in which two or more control valves are arranged on one side of the indoor heat exchange.
• the force by which both the first and second electromagnetic valves 17A and 17B are operated simultaneously In the indoor unit of the air conditioner of the present invention, one of the first and second control valves is opened and the other is A closing operation may be performed. In this case, the refrigerant flow in the heat exchange section on the downstream side of the first and second control valves is biased.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Thermal Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Air Conditioning Control Device (AREA)
• Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

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ID=38092073

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• 2005
  • 2005-11-30 JP JP2005345569A patent/JP4017006B2/ja not_active Expired - Fee Related
• 2006
  • 2006-11-21 CN CNA2006800440594A patent/CN101317039A/zh active Pending
  • 2006-11-21 WO PCT/JP2006/323157 patent/WO2007063738A1/ja active Application Filing
  • 2006-11-21 EP EP06833007A patent/EP1959203A4/de not_active Withdrawn

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