EP4425074A1 - Refrigerant storage container, and refrigeration cycle device provided with said refrigerant storage container - Google Patents

Refrigerant storage container, and refrigeration cycle device provided with said refrigerant storage container Download PDF

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Publication number
EP4425074A1
EP4425074A1 EP21962461.6A EP21962461A EP4425074A1 EP 4425074 A1 EP4425074 A1 EP 4425074A1 EP 21962461 A EP21962461 A EP 21962461A EP 4425074 A1 EP4425074 A1 EP 4425074A1
Authority
EP
European Patent Office
Prior art keywords
refrigerant
main body
baffle plate
container main
inlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP21962461.6A
Other languages
German (de)
English (en)
French (fr)
Inventor
Ryo TSUKIYAMA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP4425074A1 publication Critical patent/EP4425074A1/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006—Accumulators
    • 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
    • F25B1/00—Compression machines, plants or systems with non-reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
    • F25B2345/002—Collecting refrigerant from a cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—Component parts or details not otherwise provided for in this subclass
    • F25B2400/03—Suction accumulators with deflectors
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/01—Geometry problems, e.g. for reducing size

Definitions

  • the present disclosure relates to a refrigerant reservoir container that is a horizontal type and that stores refrigerant, and a refrigeration cycle apparatus including the refrigerant reservoir container.
  • a proposed configuration to address this issue for a refrigeration cycle apparatus includes a refrigerant reservoir container provided upstream of a suction port through which a compressor suctions refrigerant. Two-phase gas-liquid refrigerant are separated into gas refrigerant and liquid refrigerant, and the liquid refrigerant is stored in the container.
  • Patent Literature 1 for example, by having an obliquely cut tip end opening of a refrigerant inflow pipe of a refrigerant reservoir container shape, the liquid refrigerant flowing into the refrigerant reservoir container slows down so that the amount of the refrigerant that comes into contact with and bounces off an inner wall of the refrigerant reservoir container reduces.
  • a pipe tip end portion of the refrigerant inflow pipe faces a shoulder portion of the refrigerant reservoir container not to cause liquid refrigerant to directly flow into a refrigerant outflow pipe. This configuration flows the inflow liquid refrigerant along the inner wall of the refrigerant reservoir container.
  • the refrigerant reservoir container in Patent Literature 1 is capable of preventing the liquid refrigerant scattered from the liquid surface and the inner wall of the refrigerant reservoir container from reaching the refrigerant outflow pipe and flowing out from the refrigerant reservoir container.
  • Patent Literature 1 Japanese Patent No. 3163312
  • the liquid refrigerant that flows into the refrigerant reservoir container slows down and flows along the inner wall of the refrigerant reservoir container.
  • the liquid refrigerant stored therein vigorously swirls up to undulate the liquid surface.
  • the amount of scattered liquid refrigerant may be increased.
  • the liquid refrigerant that flows in directly comes into contact with the liquid refrigerant stored in the refrigerant reservoir container.
  • the liquid refrigerant may be scattered from the liquid surface.
  • the flow of the liquid refrigerant that flows in along the inner wall may induce the liquid refrigerant stored therein to be undulated and scattered.
  • the scattered liquid refrigerant may reach a refrigerant outflow pipe in the horizontal-type refrigerant reservoir container and flow into a compressor together with gas refrigerant.
  • the present disclosure is made in view of such a problem and provides a refrigerant reservoir container that inhibits liquid refrigerant from flowing out from the refrigerant reservoir container, and a refrigeration cycle apparatus including the refrigerant reservoir container.
  • a refrigerant reservoir container includes: a container main body having a cylindrical body part and being a horizontal type, the container main body storing refrigerant including liquid refrigerant; an inflow pipe inserted into the container main body, the inflow pipe having an inlet through which the refrigerant flows into the container main body; an outflow pipe inserted into the container main body, the outflow pipe having an outlet through which the refrigerant flows out from the container main body; and a baffle plate having a first flat surface and being supported cantilevered on an inner wall of the container main body.
  • the inlet is oriented sideways and faces the inner wall of the container main body.
  • the outlet is located above the inlet in the container main body.
  • the baffle plate is located below the inlet, and the first flat surface of the baffle plate faces the liquid refrigerant that flows in through the inlet and along the inner wall.
  • a refrigerant reservoir container includes: a container main body having a cylindrical body part and being a horizontal type, the container main body storing refrigerant; an inflow pipe inserted into the container main body, the inflow pipe having an inlet through which the refrigerant flows into the container main body; an outflow pipe inserted into the container main body, the outflow pipe having an outlet through which the refrigerant flows out from the container main body; and a baffle plate having a first flat surface and a thickness surface, the thickness surface being supported on an inner wall of the container main body.
  • the inlet is oriented sideways and faces the inner wall of the container main body.
  • the outlet is located above the inlet and the baffle plate in the container main body.
  • the baffle plate is located above the inlet, and the first flat surface of the baffle plate partitions an internal space of the container main body into an upper space and a lower space.
  • the baffle plate has at least one through hole through which gas refrigerant included in the refrigerant passes.
  • a refrigeration cycle apparatus includes: the refrigerant reservoir container; and a compressor connected to the refrigerant reservoir container via the outflow pipe.
  • the baffle plate having the first flat surface facing the liquid refrigerant that flows along the inner wall is provided in the container main body.
  • the liquid refrigerant comes into contact with the first flat surface, and the flow of the liquid refrigerant thus slows down.
  • the scattered liquid refrigerant is inhibited from reaching the outflow pipe, thus reducing the amount of the liquid refrigerant that flows into the compressor.
  • Refrigerant reservoir containers and refrigeration cycle apparatuses including the respective refrigerant reservoir containers according to embodiments of the present disclosure will be described below with reference to the drawings.
  • the present disclosure is not limited to the following embodiments, and various modifications can be made without departing from the gist of the present disclosure.
  • the present disclosure includes all feasible combinations of configurations in the following embodiments and modification examples.
  • the configurations of the illustrated refrigerant reservoir containers and refrigeration cycle apparatuses are examples, and the illustrated refrigerant reservoir containers and refrigeration cycle apparatuses do not limit the configurations of the present disclosure.
  • terms that mean directions for example, “up”, “down”, “right”, “left”, “front”, and “rear" are used as appropriate to make the description easy to understand. These terms are used for description and do not limit the present disclosure.
  • an X direction represents the left-right direction of the refrigerant reservoir containers, that is, the right-to-left direction with an arrow.
  • a Y direction represents the front-rear direction of the refrigerant reservoir containers, that is, the front-to-rear direction with an arrow.
  • a Z direction represents the up-down direction of the refrigerant reservoir containers, that is, the down-to-up direction with an arrow.
  • the Z direction is a vertical direction.
  • FIG. 1 is a refrigerant circuit diagram of the refrigeration cycle apparatus 100 including the refrigerant reservoir container 101 according to Embodiment 1.
  • the refrigeration cycle apparatus 100 according to Embodiment 1 includes a compressor 10, a flow switching device 11, an outdoor heat exchanger 12, an expansion mechanism 13, an indoor heat exchanger 14, and the refrigerant reservoir container 101.
  • the compressor 10, the flow switching device 11, the outdoor heat exchanger 12, the expansion mechanism 13, the indoor heat exchanger 14, and the refrigerant reservoir container 101 are connected by refrigerant pipes 15.
  • a refrigerant circuit 200 in which refrigerant circulates in the refrigerant pipes 15, is formed.
  • the refrigerant reservoir container 101 is connected to the compressor 10 via an outflow pipe 3, which is one of the refrigerant pipes 15.
  • the compressor 10 compresses suctioned refrigerant into high-temperature, high-pressure refrigerant and discharges the high-temperature, high-pressure refrigerant.
  • the compressor 10 is, for example, an inverter compressor.
  • the refrigerant discharged from the compressor 10 flows into the outdoor heat exchanger 12 or the indoor heat exchanger 14 via the flow switching device 11.
  • the flow switching device 11 has a function of switching between refrigerant passages.
  • the flow switching device 11 switches between a cooling operation and a heating operation.
  • the cooling operation the refrigerant discharged from the compressor 10 flows in the outdoor heat exchanger 12, the expansion mechanism 13, the indoor heat exchanger 14, and the refrigerant reservoir container 101 in this order and returns to the compressor 10.
  • the heating operation the refrigerant discharged from the compressor 10 flows in the indoor heat exchanger 14, the expansion mechanism 13, the outdoor heat exchanger 12, and the refrigerant reservoir container 101 in this order and returns to the compressor 10. That is, in the cooling operation for an indoor space, the outdoor heat exchanger 12 functions as a condenser, and the indoor heat exchanger 14 functions as an evaporator.
  • the indoor heat exchanger 14 functions as a condenser
  • the outdoor heat exchanger 12 functions as an evaporator.
  • the flow switching device 11 is, for example, a four-way valve.
  • the flow switching device 11 may be formed by combining two-way valves or three-way valves.
  • the expansion mechanism 13 is a pressure reducing device configured to decompress and expand the refrigerant that flows in the refrigerant circuit 200.
  • the expansion mechanism 13 is formed by an electronic expansion valve whose opening degree is controlled to be adjustable.
  • the refrigerant to be suctioned into the compressor 10 is preferably superheated gas.
  • the state of the refrigerant to be suctioned into the compressor 10 depends on the refrigerant distribution in the refrigerant circuit 200. Accordingly, refrigerant including liquid refrigerant may be suctioned into the compressor 10.
  • a refrigerating machine oil in a shell of the compressor 10 is diluted. Thus, seizure of sliding portions of the compressor 10 may occur.
  • the refrigerant reservoir container 101 is set upstream of the compressor 10 in the direction in which refrigerant flows.
  • the two-phase gas-liquid refrigerant that has flowed out from the evaporator and passed through the flow switching device 11 flows into the refrigerant reservoir container 101 through an inflow pipe 2, which is one of the refrigerant pipes 15.
  • the two-phase gas-liquid refrigerant that has flowed into the refrigerant reservoir container 101 is separated into gas refrigerant and liquid refrigerant, and the liquid refrigerant remains in the refrigerant reservoir container.
  • the gas refrigerant flows out from the refrigerant reservoir container 101 through the outflow pipe 3 and is suctioned into the compressor 10.
  • the liquid refrigerant is separated from the two-phase gas-liquid refrigerant and stored in the refrigerant reservoir container 101.
  • the liquid refrigerant is possible to inhibit the liquid refrigerant from being suctioned into the compressor 10.
  • the refrigeration cycle apparatus 100 is not limited to such an air-conditioning apparatus capable of switching between a cooling operation and a heating operation.
  • the refrigerant reservoir container 101 may be applied to refrigeration cycle apparatuses such as a dehumidifier and a refrigerator-freezer.
  • Fig. 2 is an internal configuration diagram of the refrigerant reservoir container 101 according to Embodiment 1 when viewed from the front side. Solid arrows illustrated in Fig. 2 schematically represent a refrigerant flow.
  • Fig. 3 is an internal configuration diagram of the refrigerant reservoir container 101 according to Embodiment 1 when viewed from the top side. In Fig. 3 , a baffle plate 5 is represented by a dot pattern.
  • Fig. 4 is an internal configuration diagram of the refrigerant reservoir container 101 when viewed in an A direction illustrated in Fig. 2 . Dashed arrows illustrated in Fig. 4 schematically represent a flow of liquid refrigerant 4.
  • the A direction is a direction that corresponds to the longitudinal direction of a container main body 1 and that is the same as the X direction.
  • the refrigerant reservoir container 101 includes the container main body 1, the inflow pipe 2, the outflow pipe 3, and the baffle plate 5.
  • the container main body 1 has a cylindrical body part 1a and is a horizontal type.
  • the refrigerant reservoir container 101 is set such that the longitudinal direction of the body part 1 a of the container main body 1 is horizontal.
  • the liquid refrigerant 4, which flows in through the inflow pipe 2, is stored in the container main body 1.
  • a section, in the vertical direction, of the body part 1 a of the container main body 1 has an arc shape.
  • the section of the body part 1a of the container main body 1 has a perfect circular shape.
  • the shape of the section of the body part 1a of the container main body 1 is not limited to the perfect circular shape.
  • the shape of the section of the body part 1a of the container main body 1 may be an elliptical shape.
  • the section of the body part 1a of the container main body 1 may have a quadrilateral shape having rounded corners.
  • end portions 1b of the container main body 1, which are provided at respective ends of the body part 1a in the longitudinal direction have a shape including an arc shape.
  • the upper and lower corners of the end portions 1b of the container main body 1 have an arc shape.
  • Fig. 2 when the refrigerant reservoir container 101 is viewed in front view, the upper and lower corners of the end portions 1b of the container main body 1 have an arc shape.
  • Fig. 2 when the refrigerant reservoir container 101 is viewed in front view, the upper and lower corners of the end portions 1b of the container main body 1 have an arc shape.
  • the front and rear corners of the end portions 1b of the container main body 1 have an arc shape.
  • a part of each of the end portions 1b is straight, but the end portion 1b does not have to have such a straight part.
  • the end portion 1b may have a spherical dome shape.
  • the inflow pipe 2 and the outflow pipe 3 are inserted into an upper part in the container main body 1. As illustrated in Fig. 2 , for example, the inflow pipe 2 and the outflow pipe 3 are inserted from the top of the container main body 1. However, it is sufficient that the inflow pipe 2 and the outflow pipe 3 be inserted into the upper part in the container main body 1. Thus, the inflow pipe 2 and the outflow pipe 3 do not have to be inserted from the top of the container main body 1.
  • the inflow pipe 2 and the outflow pipe 3 may be inserted from any of the front, rear, left, and right surfaces of the container main body 1.
  • the refrigerant in a two-phase gas-liquid state passes through the inflow pipe 2 and flows into the container main body 1 through an inlet 2a of the inflow pipe 2.
  • the liquid refrigerant 4, which has flowed in through the inlet 2a, falls onto the bottom of the container main body 1 by gravity and remains in the container main body 1.
  • the gas refrigerant that has flowed into the container main body 1 through the inlet 2a flows into the outflow pipe 3 through an outlet 3a.
  • the gas refrigerant that has flowed into the outflow pipe 3 flows out from the container main body 1 through the outflow pipe 3 and is suctioned into the compressor 10.
  • the inlet 2a of the inflow pipe 2 is oriented in a direction other than the upward vertical direction and the downward vertical direction. That is, the inlet 2a is open toward the part of an inner wall of the container main body 1 located to be inclined relative to the crest of the bottom of the container main body 1 and the crest of the top of the container main body 1.
  • the inlet 2a may be oriented in a horizontal direction or may be oriented obliquely upward or downward relative to the horizontal direction.
  • Such a state in which the inlet 2a is oriented in a direction other than the upward vertical direction and the downward vertical direction is represented by the expression "the inlet 2a is oriented sideways".
  • the inlet 2a faces the part of the inner wall located at the front side of the body part 1a.
  • the inflow pipe 2 has a bent portion 2b, which has a curved shape.
  • the inlet 2a is located at the tip end of the bent portion 2b.
  • the inflow pipe 2 does not have to have the bent portion 2b as long as the inflow pipe 2 can be provided such that the inlet 2a is oriented sideways.
  • the inlet 2a of the inflow pipe 2 is located below the outlet 3a of the outflow pipe 3 in the container main body 1.
  • Figs. 2 to 4 illustrate the outflow pipe 3, which has a U shape.
  • the outflow pipe 3 does not have to have a U shape and may have a straight shape.
  • a part of the inflow pipe 2 and a part of the outflow pipe 3 overlap each other.
  • the positional relationship between the inflow pipe 2 and the outflow pipe 3 is not limited as long as the outlet 3a is located above the inlet 2a in the container main body 1.
  • the baffle plate 5 has a flat portion and has a plate-like shape.
  • the part whose area is largest of the flat portion is a first flat surface 5A.
  • the baffle plate 5 is provided in the container main body 1 and is located below the inlet 2a and the outlet 3a.
  • the baffle plate 5 is supported cantilevered on the inner wall of the container main body 1.
  • the state in which the baffle plate 5 is supported cantilevered on the inner wall of the container main body 1 is a state in which one of thickness surfaces of the baffle plate 5 is connected to the inner wall of the container main body 1 and in which the thickness surface opposite to the connected thickness surface is a free end.
  • the baffle plate 5 is located below the inlet 2a and the outlet 3a and is thus not supported on the part of the inner wall of the container main body 1 located at the top side.
  • the baffle plate 5 is supported on the part of the inner wall of the container main body 1 other than that located at the top side.
  • the baffle plate 5 is provided such that the first flat surface 5A faces the liquid refrigerant 4, which flows in through the inlet 2a and along the inner wall.
  • the liquid refrigerant 4 which flows along the inner wall of the container main body 1, comes into contact with the first flat surface 5A of the baffle plate 5.
  • the baffle plate 5 in Embodiment 1 is provided to extend in the longitudinal direction of the container main body 1.
  • the baffle plate 5 in Embodiment 1 is provided to extend in the longitudinal direction of the container main body 1.
  • the baffle plate 5 and the part of the inner wall of the body part 1a supporting the baffle plate 5 are equal in length in the longitudinal direction of the container main body 1.
  • the baffle plate 5 projects from the part of the inner wall of the body part 1a such that the first flat surface 5A is horizontal.
  • the baffle plate 5 does not have to be provided such that the first flat surface 5A is horizontal.
  • the baffle plate 5 may project radially from the part of the inner wall of the body part 1a.
  • the baffle plate 5 may project from the part of the inner wall of the body part 1a such that the first flat surface 5A is vertical.
  • the baffle plate 5 in Embodiment 1 is provided at a position where the liquid refrigerant 4, which flows in through the inlet 2a and flows downward along the part of the inner wall of the body part 1a, faces the first flat surface 5A.
  • the baffle plate 5 extends to a position overlapping the inlet 2a when the container main body 1 is viewed in the vertical direction.
  • the liquid refrigerant 4, which flows in through the inlet 2a comes into contact with the part of the inner wall of the body part 1a facing the inlet 2a, flows downward along the inner wall, and thereafter comes into contact with the first flat surface 5A of the baffle plate 5.
  • the refrigerant reservoir container 101 includes: the container main body 1 having the cylindrical body part 1a and being a horizontal type, the container main body 1 storing refrigerant including the liquid refrigerant 4; the inflow pipe 2 inserted into the container main body 1, the inflow pipe 2 having the inlet 2a, through which the refrigerant flows into the container main body 1; the outflow pipe 3 inserted into the container main body 1, the outflow pipe 3 having the outlet 3a, through which the refrigerant flows out from the container main body 1; and the baffle plate 5 having the first flat surface 5A and being supported cantilevered on the inner wall of the container main body 1.
  • the inlet 2a is oriented sideways and faces the inner wall of the container main body 1.
  • the outlet 3a is located above the inlet 2a in the container main body 1.
  • the baffle plate 5 is located below the inlet 2a, and the first flat surface 5A of the baffle plate 5 faces the liquid refrigerant 4, which flows in through the inlet 2a and along the inner wall.
  • the container main body 1 is a horizontal type, thus enabling a reduction in the height of the refrigerant reservoir container 101.
  • the liquid refrigerant 4 which flows in through the inlet 2a, flows along the inner wall of the container main body 1 and comes into contact with the first flat surface 5A of the baffle plate 5.
  • the container main body 1 is a horizontal-type container main body in which the remaining liquid refrigerant 4 vigorously swirls up, it is possible to inhibit the liquid refrigerant 4 from flowing out through the outflow pipe 3.
  • the inlet 2a is open to face the part of the inner wall of the body part 1a, and the baffle plate 5 is supported on the part of the inner wall of the body part 1a.
  • the baffle plate 5 is provided at a position where the first flat surface 5A faces the liquid refrigerant 4, which flows downward along the part of the inner wall of the body part 1a.
  • the liquid refrigerant 4, which has flowed in through the inlet 2a is highly likely to come into contact with the first flat surface 5A of the baffle plate 5. Accordingly, the flow of the liquid refrigerant 4, which flows in through the inlet 2a, slows down, thus inhibiting the liquid refrigerant 4 remaining in the container main body 1 from being undulated. As a result, it is possible to inhibit scattering of the liquid refrigerant 4 remaining in the container main body 1.
  • the baffle plate 5 is supported on the inner wall such that the first flat surface 5A is horizontal.
  • the liquid refrigerant 4 which flows in through the inlet 2a and along the inner wall of the container main body 1, flows horizontally when coming into contact with the first flat surface 5A.
  • the flow of the liquid refrigerant 4 slows down. Accordingly, it is possible to inhibit the liquid refrigerant 4 remaining in the container main body 1 from being undulated and scattered.
  • the baffle plate 5 is provided to extend to both ends in the longitudinal direction of the body part 1a.
  • the liquid refrigerant 4 which flows in through the inlet 2a, is highly likely to come into contact with the first flat surface 5A of the baffle plate 5, and the flow of the liquid refrigerant 4 is thus highly likely to slow down. Accordingly, it is also possible to highly likely inhibit the liquid refrigerant 4 remaining in the container main body 1 from being undulated and scattered.
  • the configuration of the refrigeration cycle apparatus 100 according to Embodiment 1 includes the refrigerant reservoir container 101 and the compressor 10 connected to the refrigerant reservoir container 101 via the outflow pipe 3.
  • this configuration it is possible to inhibit the liquid refrigerant 4 from being suctioned from the refrigerant reservoir container 101 into the compressor 10 via the outflow pipe 3. Accordingly, it is possible to reduce the possibility that the refrigerating machine oil in the compressor 10 is diluted to cause seizure of the sliding portions of the compressor.
  • Fig. 5 is an internal configuration diagram of the refrigerant reservoir container 101 according to the first modification example of Embodiment 1 when viewed from the front side. Solid arrows illustrated in Fig. 5 schematically represent a refrigerant flow.
  • Fig. 6 is an internal configuration diagram of the refrigerant reservoir container 101 according to the first modification example of Embodiment 1 when viewed from the top side. In Fig. 6 , the baffle plate 5 is represented by a dot pattern.
  • Fig. 7 is an internal configuration diagram of the refrigerant reservoir container 101 when viewed in an A direction illustrated in Fig. 5 . Dashed arrows illustrated in Fig.
  • FIG. 7 schematically represent a flow of the liquid refrigerant 4.
  • Figs. 7 and 4 are diagrams in which the refrigerant reservoir container 101 is viewed in the A direction. Thus, Figs. 7 and 4 appear to be the same but differ in the length of the baffle plate 5 in the A direction.
  • the A direction is a direction that corresponds to the longitudinal direction of the container main body 1.
  • the baffle plate 5 of the refrigerant reservoir container 101 according to the first modification example differs from the baffle plate 5 in Embodiment 1 in length in the longitudinal direction. As illustrated in Figs. 5 and 6 , the baffle plate 5 in the first modification example is partially provided in the longitudinal direction of the container main body 1. The length of the baffle plate 5 in the longitudinal direction of the container main body 1 is smaller than the length of the part of the inner wall of the body part 1a supporting the baffle plate 5 in the longitudinal direction of the container main body 1.
  • the baffle plate 5 in the first modification example is provided at a position where the first flat surface 5A faces the liquid refrigerant 4, which flows downward along the part of the inner wall of the body part 1a.
  • the baffle plate 5 extends to a position overlapping the inlet 2a when the container main body 1 is viewed in the vertical direction. Accordingly, as illustrated in Fig. 7 , the liquid refrigerant 4, which flows in through the inlet 2a, comes into contact with the part of the inner wall of the body part 1a facing the inlet 2a and thereafter flows downward along the inner wall. Then, the liquid refrigerant 4 comes into contact with the baffle plate 5 provided below the inlet 2a.
  • the baffle plate 5 in the first modification example enables the liquid refrigerant 4, which flows in through the inlet 2a, to slow down.
  • the liquid refrigerant 4 which has flowed in through the inlet 2a comes into contact with the liquid refrigerant 4 remaining in the container main body 1, the refrigerant is inhibited from being scattered from the liquid surface.
  • the difference between the first modification example and Embodiment 1 is solely the length of the baffle plate 5 in the longitudinal direction, other configurations and operations are the same as those of Embodiment 1, and descriptions thereof are thus omitted herein.
  • the baffle plate 5 partially provided in the longitudinal direction of the container main body 1 enables the liquid refrigerant 4, which flows into the container main body 1, to slow down. Accordingly, the liquid refrigerant 4 is inhibited from being scattered from the liquid surface of the liquid refrigerant 4.
  • the configuration of the refrigerant reservoir container 101 according to the first modification example enables both a reduction of materials forming the refrigerant reservoir container 101 and provision of the refrigerant reservoir container 101 capable of inhibiting the scattered liquid refrigerant 4 from reaching the refrigerant outflow pipe.
  • Embodiment 2 The refrigerant reservoir container 101 according to Embodiment 2 will be described.
  • the difference between Embodiment 2 and Embodiment 1 is the positional relationship between the baffle plate 5 and the inlet 2a.
  • the positional relationship between the baffle plate 5 and the inlet 2a in Embodiment 2 will be described below with a focus on the difference between Embodiment 2 and Embodiment 1.
  • the respective configurations of the refrigerant reservoir container 101 and the refrigeration cycle apparatus 100 in Embodiment 2 are similar to those in Embodiment 1 other than the positional relationship between the baffle plate 5 and the inlet 2a, and descriptions thereof are thus omitted.
  • the same components as those in Embodiment 1 have the same reference signs, and descriptions thereof are omitted as appropriate.
  • Fig. 8 is an internal configuration diagram of the refrigerant reservoir container 101 according to Embodiment 2 when viewed from the front side. Solid arrows illustrated in Fig. 8 schematically represent a refrigerant flow.
  • Fig. 9 is an internal configuration diagram of the refrigerant reservoir container 101 according to Embodiment 2 when viewed from the top side. In Fig. 9 , the baffle plate 5 is represented by a dot pattern.
  • Fig. 10 is an internal configuration diagram of the refrigerant reservoir container 101 when viewed in an A direction illustrated in Fig. 8 . Dashed arrows illustrated in Fig. 10 schematically represent a flow of the liquid refrigerant 4.
  • the A direction is a direction that corresponds to the longitudinal direction of the container main body 1.
  • the baffle plate 5 in Embodiment 2 is provided on the part of the inner wall of the body part 1a to extend in the longitudinal direction of the container main body 1.
  • one of the thickness surfaces of the baffle plate 5 in the longitudinal direction is supported on the part of the inner wall of the body part 1a.
  • Embodiment 2 differs from Embodiment 1 in place in the inner wall on which the baffle plate 5 is supported cantilevered. As illustrated in Figs.
  • the baffle plate 5 in Embodiment 2 is provided at a position where the liquid refrigerant 4, which flows in through the inlet 2a and flows upward along the part of the inner wall of the body part 1a, comes into contact with the first flat surface 5A.
  • the baffle plate 5 projects from the part of the inner wall of the body part 1a such that the first flat surface 5A is horizontal.
  • the baffle plate 5 is provided at a position where the liquid refrigerant 4, which flows in through the inlet 2a and flows upward along the part of the inner wall of the body part 1a, comes into contact with the first flat surface 5A.
  • the baffle plate 5 projects from the part of the inner wall of the body part 1a opposite to the part of the inner wall of the body part 1a that the inlet 2a faces.
  • Figs. 9 the baffle plate 5 projects from the part of the inner wall of the body part 1a such that the first flat surface 5A is horizontal.
  • the baffle plate 5 is provided at a position where the liquid refrigerant 4, which flows in through the inlet 2a and flows upward along the part of the inner wall of the body part 1a, comes into contact with the first flat surface 5A.
  • the baffle plate 5 projects from the part of the inner wall of the body part 1a opposite to the part of the inner
  • the baffle plate 5 when the part of the inner wall of the body part 1a that the inlet 2a faces is the part of the inner wall of the container main body 1 located at the front side, the baffle plate 5 is provided on the part of the inner wall of the container main body 1 located at the rear side.
  • the baffle plate 5 and the inlet 2a do not overlap each other.
  • the liquid refrigerant 4 which flows in through the inlet 2a, comes into contact with the part of the inner wall of the body part 1a facing the inlet 2a, flows downward along the inner wall, and thereafter flows into the liquid refrigerant 4 remaining in the container main body 1.
  • the flow of the liquid refrigerant 4, which flows in along the inner wall, may induce the part of the liquid surface located at the rear side of the liquid refrigerant 4 remaining in the container main body 1 to rise along the inner wall.
  • the baffle plate 5 in Embodiment 2 is provided on the part of the inner wall of the container main body 1 located at the rear side, as illustrated in Fig.
  • the part of the liquid surface that has risen along the inner wall comes into contact with the first flat surface 5A of the baffle plate 5. This inhibits the rise of the liquid surface of the liquid refrigerant 4 remaining in the container main body 1 caused by the liquid refrigerant 4 flowing in through the inlet 2a.
  • the baffle plate 5 is provided at a position where the first flat surface 5A faces the liquid refrigerant 4, which flows upward along the part of the inner wall of the body part.
  • the liquid refrigerant 4, which has flowed in through the inlet 2a flows along the inner wall of the container main body 1 without immediately coming into contact with the baffle plate 5. Accordingly, the liquid refrigerant 4, which has flowed in, slows down by flowing along the inner wall.
  • the liquid refrigerant 4 comes into contact with the first flat surface 5A of the baffle plate 5 in the state in which the liquid refrigerant 4 slows down, thus inhibiting the liquid refrigerant 4 from being scattered when the liquid refrigerant 4 comes into contact with the baffle plate 5.
  • the baffle plate 5 inhibits the rise of the liquid surface of the liquid refrigerant 4 remaining in the container main body 1, thus inhibiting the remaining liquid refrigerant 4 from swirling up. As a result, the liquid refrigerant 4 is also inhibited from being scattered from the liquid surface.
  • Fig. 11 is an internal configuration diagram of the refrigerant reservoir container 101 according to the first modification example of Embodiment 2 when viewed from the front side. Solid arrows illustrated in Fig. 11 schematically represent a refrigerant flow.
  • Fig. 12 is an internal configuration diagram of the refrigerant reservoir container 101 according to the first modification example of Embodiment 2 when viewed from the top side. In Fig. 12 , the baffle plate 5 is represented by a dot pattern.
  • Fig. 13 is an internal configuration diagram of the refrigerant reservoir container 101 when viewed in an A direction illustrated in Fig. 11 . Dashed arrows illustrated in Fig.
  • FIG. 13 schematically represent a flow of the liquid refrigerant 4.
  • Figs. 13 and 10 are diagrams in which the refrigerant reservoir container 101 is viewed in the A direction. Thus, Figs. 13 and 10 appear to be the same but differ in the length of the baffle plate 5 in the A direction.
  • the A direction is a direction that corresponds to the longitudinal direction of the container main body 1.
  • the baffle plate 5 of the refrigerant reservoir container 101 according to the first modification example differs from the baffle plate 5 in Embodiment 2 in length in the longitudinal direction. As illustrated in Figs. 10 and 11 , the baffle plate 5 in the first modification example is partially provided in the longitudinal direction of the container main body 1. The length of the baffle plate 5 in the longitudinal direction of the container main body 1 is smaller than the length of the part of the inner wall of the body part 1a supporting the baffle plate 5 in the longitudinal direction of the container main body 1.
  • the baffle plate 5 in the first modification example is provided at a position where the first flat surface 5A faces the liquid refrigerant 4, which flows upward along the part of the inner wall of the body part 1a.
  • the baffle plate 5 and the inlet 2a do not overlap each other. Assuming that the liquid refrigerant 4 does not remain in the container main body 1 and that the liquid refrigerant 4 flowing in through the inlet 2a does not slow down, the baffle plate 5 is provided such that the liquid refrigerant 4, which flows in through the inlet 2a and flows upward along the inner wall, comes into contact with the first flat surface 5A. Accordingly, as illustrated in Fig.
  • the baffle plate 5 in the first modification example is capable of inhibiting the rise of the liquid surface of the liquid refrigerant 4 induced by the liquid refrigerant 4, which flows in through the inlet 2a and along the inner wall.
  • the difference between the first modification example and Embodiment 2 is solely the shape of the baffle plate 5, other configurations and operations are the same as those of Embodiment 2, and descriptions thereof are thus omitted herein.
  • the baffle plate 5 partially provided at the rear side of the container main body 1 enables the liquid refrigerant 4, which flows in, to slow down. Accordingly, similarly to Embodiment 2, it is possible to inhibit the liquid refrigerant 4 from being scattered when the liquid refrigerant 4 comes into contact with the baffle plate 5 and from being scattered due to the remaining liquid refrigerant 4 swirling up.
  • the configuration of the refrigerant reservoir container 101 according to the first modification example enables both a reduction of materials forming the refrigerant reservoir container 101 and provision of the refrigerant reservoir container 101 capable of inhibiting the scattered liquid refrigerant 4 from reaching the refrigerant outflow pipe.
  • the refrigerant reservoir container 101 according to Embodiment 3 will be described.
  • the difference between Embodiment 3 and Embodiments 1 and 2 is the configuration in which the baffle plate 5 is set.
  • the configuration in which the baffle plate 5 in Embodiment 3 is set will be described below with a focus on the difference between Embodiment 3 and Embodiments 1 and 2.
  • the respective configurations of the refrigerant reservoir container 101 and the refrigeration cycle apparatus 100 in Embodiment 3 are similar to those in Embodiments 1 and 2 other than the configuration in which the baffle plate 5 is set, and descriptions thereof are thus omitted.
  • the same components as those in Embodiment 1 have the same reference signs, and descriptions thereof are omitted as appropriate.
  • Fig. 14 is an internal configuration diagram of the refrigerant reservoir container 101 according to Embodiment 3 when viewed from the front side. Solid arrows illustrated in Fig. 14 schematically represent a refrigerant flow. In addition, in Fig. 14 , the baffle plate 5 is represented by a dot pattern.
  • Fig. 15 is an internal configuration diagram of the refrigerant reservoir container 101 according to Embodiment 3 when viewed from the top side.
  • Fig. 16 is an internal configuration diagram of the refrigerant reservoir container 101 when viewed in an A direction illustrated in Fig. 14 . Dashed arrows illustrated in Fig. 16 schematically represent a flow of the liquid refrigerant 4.
  • the A direction is a direction that corresponds to the longitudinal direction of the container main body 1.
  • the baffle plate 5 is provided perpendicularly to the part of the inner wall of the container main body 1 located at the bottom. As illustrated in Figs. 14 and 16 , the baffle plate 5 is supported cantilevered on the part of the inner wall of the body part 1a of the container main body 1 such that the first flat surface 5A is vertical. As illustrated in Fig. 14 , the baffle plate 5 is provided on the lowest part of the inner wall of the body part 1a corresponding to the bottom of the container main body 1 to extend in the longitudinal direction of the container main body 1. One of the thickness surfaces of the baffle plate 5 in the longitudinal direction is supported on the lowest part of the inner wall of the body part 1a. The baffle plate 5 and the part of the inner wall of the body part 1a supporting the baffle plate 5 are equal in length in the longitudinal direction of the container main body 1.
  • the baffle plate 5 is provided ahead of the outflow pipe 3 in the front-rear direction (Y direction) of the container main body 1.
  • the positional relationship between the baffle plate 5 and the outflow pipe 3 is not limited as long as the outlet 3a is located above the baffle plate 5 in the container main body 1.
  • the inflow pipe 2 and the outflow pipe 3 do not overlap each other.
  • the positional relationship between the inflow pipe 2 and the outflow pipe 3 is not limited as long as the outlet 3a is located above the inlet 2a in the container main body 1.
  • the baffle plate 5 and the inlet 2a do not overlap each other.
  • the positional relationship between the baffle plate 5 and the inlet 2a is not limited as long as the baffle plate 5 is located below the inlet 2a in the container main body 1.
  • the baffle plate 5 and the inlet 2a may be located to overlap each other.
  • the baffle plate 5 may be located at any of the front side and the rear side of the inlet 2a in the front-rear direction of the container main body 1.
  • the liquid refrigerant 4 which flows in through the inlet 2a, comes into contact with the part of the inner wall of the body part 1a facing the inlet 2a, flows downward along the inner wall, and thereafter flows into the liquid refrigerant 4 remaining in the container main body 1.
  • the flow of the liquid refrigerant 4, which flows in along the inner wall, may induce the part of the liquid surface located at the rear side of the liquid refrigerant 4 remaining in the container main body 1 to rise along the inner wall.
  • the baffle plate 5 in Embodiment 3 is provided at the bottom of the container main body 1 such that the first flat surface 5A is vertical.
  • the liquid refrigerant 4 which flows along the inner wall, comes into contact with the first flat surface 5A of the baffle plate 5. This inhibits the rise of the liquid surface of the liquid refrigerant 4 remaining in the container main body 1 caused by the liquid refrigerant 4 flowing in through the inlet 2a.
  • the baffle plate 5 is supported on the inner wall such that the first flat surface 5A is vertical.
  • the liquid refrigerant 4 which flows along the inner wall of the container main body 1 comes into contact with the first flat surface 5A, the liquid refrigerant 4 is less likely to flow over the baffle plate 5. This inhibits the rise of the liquid surface of the liquid refrigerant 4 remaining in the container main body 1 caused by the liquid refrigerant 4 flowing in through the inlet 2a. As a result, the liquid refrigerant 4 is inhibited from being scattered from the rising liquid surface.
  • Fig. 17 is an internal configuration diagram of the refrigerant reservoir container 101 according to the first modification example of Embodiment 3 when viewed from the front side.
  • Solid arrows illustrated in Fig. 17 schematically represent a refrigerant flow.
  • the baffle plate 5 is represented by a dot pattern.
  • Fig. 18 is an internal configuration diagram of the refrigerant reservoir container 101 according to the first modification example of Embodiment 3 when viewed from the top side.
  • Fig. 19 is an internal configuration diagram of the refrigerant reservoir container 101 when viewed in an A direction illustrated in Fig. 17 . Dashed arrows illustrated in Fig.
  • FIG. 19 schematically represent a flow of the liquid refrigerant 4.
  • Figs. 19 and 16 are diagrams in which the refrigerant reservoir container 101 is viewed in the A direction. Thus, Figs. 19 and 16 appear to be the same but differ in the length of the baffle plate 5 in the A direction.
  • the A direction is a direction that corresponds to the longitudinal direction of the container main body 1.
  • the baffle plate 5 of the refrigerant reservoir container 101 according to the first modification example differs from the baffle plate 5 in Embodiment 3 in length in the longitudinal direction. As illustrated in Figs. 17 and 18 , the baffle plate 5 in the first modification example is partially provided at the bottom of the container main body 1. The length of the baffle plate 5 in the longitudinal direction of the container main body 1 is smaller than the length of the part of the inner wall of the body part 1a supporting the baffle plate 5 in the longitudinal direction of the container main body 1.
  • the baffle plate 5 is provided at a position where the first flat surface 5A faces the liquid refrigerant 4, which flows in through the inlet 2a and along the inner wall. Assuming that the liquid refrigerant 4 does not remain in the container main body 1 and that the liquid refrigerant 4 flowing in through the inlet 2a does not slow down, the baffle plate 5 is provided such that the liquid refrigerant 4, which flows in through the inlet 2a and along the inner wall, comes into contact with the first flat surface 5A. Accordingly, as illustrated in Fig. 19 , the liquid refrigerant 4, which flows in through the inlet 2a and along the inner wall, comes into contact with the first flat surface 5A of the baffle plate 5.
  • the baffle plate 5 in the first modification example is capable of inhibiting the rise of the liquid surface of the liquid refrigerant 4 induced by the liquid refrigerant 4, which flows in through the inlet 2a and along the inner wall.
  • the difference between the first modification example and Embodiment 3 is solely the length of the baffle plate 5 in the longitudinal direction, other configurations and operations are the same as those of Embodiment 3, and descriptions thereof are thus omitted herein.
  • the liquid refrigerant 4 which flows in through the inlet 2a, comes into contact with the first flat surface 5A of the baffle plate 5 partially provided on the lowest part of the inner wall of the body part 1a corresponding to the bottom of the container main body 1. This inhibits the rise of the liquid surface of the liquid refrigerant 4 remaining in the container main body 1, thus inhibiting the liquid refrigerant 4 from being scattered from the liquid surface.
  • the configuration of the refrigerant reservoir container 101 according to the first modification example enables both a reduction of materials forming the refrigerant reservoir container 101 and provision of the refrigerant reservoir container 101 capable of inhibiting the scattered liquid refrigerant 4 from reaching the refrigerant outflow pipe.
  • the refrigerant reservoir container 101 according to Embodiment 4 will be described.
  • the difference between Embodiment 4 and Embodiments 1 to 3 is the configuration in which the baffle plate 5 is set and the shape of the baffle plate 5.
  • the configuration in which the baffle plate 5 is set and the shape of the baffle plate 5 in Embodiment 4 will be described below with a focus on the difference between Embodiment 4 and Embodiments 1 to 3.
  • the respective configurations of the refrigerant reservoir container 101 and the refrigeration cycle apparatus 100 in Embodiment 4 are similar to those in Embodiments 1 and 2 other than the configuration in which the baffle plate 5 is set and the shape of the baffle plate 5, and descriptions thereof are thus omitted.
  • the same components as those in Embodiment 1 have the same reference signs, and descriptions thereof are omitted as appropriate.
  • Fig. 20 is an internal configuration diagram of the refrigerant reservoir container 101 according to Embodiment 4 when viewed from the front side. Solid arrows illustrated in Fig. 20 schematically represent a refrigerant flow.
  • Fig. 21 is an internal configuration diagram of the refrigerant reservoir container 101 according to Embodiment 3 when viewed from the top side. In Fig. 21 , the baffle plate 5 is represented by a dot pattern.
  • Fig. 22 is an internal configuration diagram of the refrigerant reservoir container 101 when viewed in an A direction illustrated in Fig. 20 . Dashed arrows illustrated in Fig. 22 schematically represent a flow of the liquid refrigerant 4.
  • the A direction is a direction that corresponds to the longitudinal direction of the container main body 1.
  • the baffle plate 5 is provided such that the thickness surface is supported on the inner wall of the container main body 1 and that the first flat surface 5A is horizontal. As illustrated in Figs. 20 and 22 , the internal space of the container main body 1 is partitioned into an upper space and a lower space with the baffle plate 5.
  • the baffle plate 5 is provided to be located between the outlet 3a and the inlet 2a in the up-down direction (Z direction) of the container main body 1. Thus, the outlet 3a is located above the baffle plate 5, and the inlet 2a is located below the baffle plate 5.
  • the inflow pipe 2 and the outflow pipe 3 can be provided to pass through the baffle plate 5.
  • the inflow pipe 2 does not have to be provided to pass through the baffle plate 5 as long as the inlet 2a is located below the baffle plate 5.
  • the outflow pipe 3 does not have to be provided to pass through the baffle plate 5 as long as the outlet 3a is located above the baffle plate 5.
  • the baffle plate 5 has at least one through hole 6, through which the gas refrigerant that has flowed into the lower space through the inlet 2a moves to the upper space.
  • the gas refrigerant that has flowed into the lower space through the inlet 2a can move to the upper space through the through hole 6, thus flows into the outflow pipe 3 via the outlet 3a, and flows out from the container main body 1.
  • the liquid refrigerant 4 which flows in through the inlet 2a, comes into contact with the part of the inner wall of the body part 1a facing the inlet 2a, flows downward along the inner wall, and thereafter flows into the liquid refrigerant 4 remaining in the container main body 1.
  • the flow of the liquid refrigerant 4, which flows in along the inner wall, may induce the part of the liquid surface located at the rear side of the liquid refrigerant 4 in the container main body 1 to rise along the inner wall.
  • the baffle plate 5 in Embodiment 4 is horizontally provided to partition the internal space of the container main body 1, as illustrated in Fig.
  • the part of the liquid surface that has risen along the inner wall comes into contact with the first flat surface 5A of the baffle plate 5.
  • the liquid refrigerant 4 is also inhibited from being scattered from the rising liquid surface.
  • the liquid refrigerant 4 scattered from the liquid surface is blocked by the baffle plate 5 and thus cannot reach the outlet 3a. Accordingly, the liquid refrigerant 4 is inhibited from flowing out from the container main body 1 through the outflow pipe 3.
  • the number of through holes 6 may be two or more and is not limited.
  • the through holes 6 are represented by white circles and black spots, but these white circles and black spots do not limit the positions, opening areas, or number of the through holes 6.
  • the total opening area of the through holes 6 is not the smallest of the total opening area of the through holes 6, the opening area of the inlet 2a, and the opening area of the outlet 3a.
  • the total opening area of the through holes 6 does not have to be the largest of the total opening area of the through holes 6, the opening area of the inlet 2a, and the opening area of the outlet 3a.
  • the total opening area of the through holes 6 is, when only one through hole 6 is provided, the opening area of the one through hole 6 and, when a plurality of through holes 6 are provided, the sum of the opening areas of the respective through holes 6.
  • the relationship between the opening area of the inlet 2a and the opening area of the outlet 3a is not particularly limited.
  • the respective opening areas of the inlet 2a and the outlet 3a may be equal, or one of the respective opening areas may be larger than the other.
  • the total opening area of the through holes 6 is defined as S1
  • the opening area of the inlet 2a is defined as S2
  • the opening area of the outlet 3a is defined as S3.
  • the relationship between the total opening area S1 of the through holes 6, the opening area S2 of the inlet 2a, and the opening area S3 of the outlet 3a will be described.
  • the total opening area S1 of the through holes 6 is not smaller than S2 and thus satisfies the relationship of S1 > S2.
  • the total opening area S1 of the through holes 6 is not smaller than S3 and thus satisfies the relationship of S1 > S3.
  • the refrigerant reservoir container 101 includes: the container main body 1 having the cylindrical body part 1a and being a horizontal type, the container main body 1 storing refrigerant including gas refrigerant; the inflow pipe 2 inserted into the container main body 1, the inflow pipe 2 having the inlet 2a, through which the refrigerant flows into the container main body 1; the outflow pipe 3 inserted into the container main body 1, the outflow pipe 3 having the outlet 3a, through which the refrigerant flows out from the container main body 1; and the baffle plate 5 having the first flat surface 5A and the thickness surface, the thickness surface being supported on the inner wall of the container main body 1.
  • the inlet 2a is oriented sideways and faces the inner wall of the container main body 1.
  • the outlet 3a is located above the inlet 2a and the baffle plate 5 in the container main body 1.
  • the baffle plate 5 is located above the inlet 2a, and the first flat surface 5A of the baffle plate 5 partitions the internal space of the container main body 1 into the upper space and the lower space.
  • the baffle plate 5 has the at least one through hole 6, through which the gas refrigerant passes.
  • the container main body 1 is a horizontal type, thus enabling a reduction in the height of the refrigerant reservoir container 101.
  • the liquid refrigerant 4 which flows in through the inlet 2a, flows along the inner wall of the container main body 1 and comes into contact with the first flat surface 5A of the baffle plate 5.
  • the outlet 3a is provided above the baffle plate 5.
  • the scattered liquid refrigerant 4 is blocked by the baffle plate 5 and inhibited from reaching the outlet 3a. Accordingly, even when the container main body 1 is a horizontal-type container main body in which the remaining liquid refrigerant 4 vigorously swirls up, it is possible to inhibit the liquid refrigerant 4 from flowing out through the outflow pipe 3.
  • the inflow pipe 2 is provided to pass through the baffle plate 5. In this configuration, it is possible to insert the inflow pipe 2 into the container main body 1 from the upper space of the container main body 1, thus increasing flexibility in the configuration of the refrigerant reservoir container 101.
  • the at least one through hole 6 includes a plurality of through holes 6, the baffle plate 5 having the plurality of through holes 6, and when the total opening area of the plurality of through holes 6 is defined as S1, the opening area of the inlet 2a is defined as S2, and the opening area of the outlet 3a is defined as S3, the total opening area S1 and the opening area S2 satisfy the relationship of S1 > S2 in the case in which the opening area S2 and the opening area S3 satisfy the relationship of S2 ⁇ S3.
  • the total opening area S1 and the opening area S3 satisfy the relationship of S1 > S3 in the case in which the opening area S2 and the opening area S3 satisfy the relationship of S3 ⁇ S2.
  • the total opening area of the through holes 6 is not the smallest of the total opening area of the through holes 6, the opening area of the inlet 2a, and the opening area of the outlet 3a. Accordingly, the gas refrigerant that has flowed into the lower space of the container main body 1 can pass through the through holes 6 and reach the outlet 3a smoothly.
  • Fig. 23 is an internal configuration diagram of the refrigerant reservoir container 101 according to the first modification example of Embodiment 3 when viewed from the front side. Solid arrows illustrated in Fig. 23 schematically represent a refrigerant flow.
  • Fig. 24 is an internal configuration diagram of the refrigerant reservoir container 101 according to the first modification example of Embodiment 3 when viewed from the top side.
  • the baffle plate 5 is represented by a dot pattern.
  • the through holes 6 are represented by white circles and black spots, but these white circles and black spots do not limit the positions, opening areas, or number of the through holes 6.
  • Fig. 24 is an internal configuration diagram of the refrigerant reservoir container 101 according to the first modification example of Embodiment 3 when viewed from the front side. Solid arrows illustrated in Fig. 23 schematically represent a refrigerant flow.
  • Fig. 24 is an internal configuration diagram of the refrigerant reservoir container 101 according to the first modification example of Embodiment 3 when viewed from the top side.
  • FIG. 25 is an internal configuration diagram of the refrigerant reservoir container 101 when viewed in an A direction illustrated in Fig. 23 . Dashed arrows illustrated in Fig. 25 schematically represent a flow of the liquid refrigerant 4.
  • Figs. 25 and 22 are diagrams in which the refrigerant reservoir container 101 is viewed in the A direction. Thus, Figs. 25 and 22 appear to be the same but differ in the positions of the through holes 6.
  • the A direction is a direction that corresponds to the longitudinal direction of the container main body 1.
  • the refrigerant reservoir container 101 according to the first modification example differs from that in Embodiment 4 in the positions of the through holes 6 provided in the baffle plate 5.
  • the difference between the first modification example and Embodiment 4 is solely the positions of the through holes 6 provided in the baffle plate 5, other configurations and operations are the same as those of Embodiment 4, and descriptions thereof are thus omitted herein.
  • a first region 5a and a second region 5b, into which the baffle plate 5 is equally divided to be arranged in the longitudinal direction of the container main body 1, are represented by long dashed short dashed lines.
  • the inlet 2a is located below the first region 5a of the baffle plate 5, and the outlet 3a is located above the second region 5b of the baffle plate 5.
  • the through holes 6 are provided only in the first region 5a and are not provided in the second region 5b.
  • the baffle plate 5 when the baffle plate 5 is equally divided into the first region 5a and the second region 5b to be arranged in the longitudinal direction of the container main body 1, the inlet 2a is located below the first region 5a, the outlet 3a is located above the second region 5b, and the plurality of through holes 6 are provided in the first region 5a and are not provided in the second region 5b.
  • the through holes 6 and the outlet 3a can be sufficiently distant from each other.
  • the liquid refrigerant 4 scattered in the space below the baffle plate 5 moves to the upper space via the through holes 6, the liquid refrigerant 4 does not easily reach the outlet 3a. Accordingly, even when the container main body 1 is a horizontal-type container main body in which the remaining liquid refrigerant 4 vigorously swirls up, it is possible to more effectively inhibit the liquid refrigerant 4 from flowing out through the outflow pipe 3.
  • Embodiments 1 to 4 and the modification examples have been described above.
  • examples of the refrigerant reservoir container 101 and the refrigeration cycle apparatus 100 are not limited to Embodiments 1 to 4 and the modification examples described above, and various modifications and applications can be made thereto without departing from the gist. That is, such examples of the refrigerant reservoir container 101 and the refrigeration cycle apparatus 100 include design changes and various applications that can be commonly made by those skilled in the art without departing from the technical ideas.
  • 1 container main body, 1a: body part, 1b: end portion, 2: inflow pipe, 2a: inlet, 2b: bent portion, 3: outflow pipe, 3a: outlet, 4: liquid refrigerant, 5: baffle plate, 5A: first flat surface, 5a: first region, 5b: second region, 6: through hole, 10: compressor, 11: flow switching device, 12: outdoor heat exchanger, 13: expansion mechanism, 14: indoor heat exchanger, 15: refrigerant pipe, 100: refrigeration cycle apparatus, 101: refrigerant reservoir container, 200: refrigerant circuit

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Compressor (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP21962461.6A 2021-10-29 2021-10-29 Refrigerant storage container, and refrigeration cycle device provided with said refrigerant storage container Withdrawn EP4425074A1 (en)

Applications Claiming Priority (1)

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PCT/JP2021/040018 WO2023073919A1 (ja) 2021-10-29 2021-10-29 冷媒貯留容器及び該冷媒貯留容器を備えた冷凍サイクル装置

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EP (1) EP4425074A1 (https=)
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Publication number Priority date Publication date Assignee Title
US2830797A (en) * 1953-05-05 1958-04-15 Frick Co Refrigerant condenser
JPS61191843A (ja) * 1985-02-20 1986-08-26 松下冷機株式会社 アキユムレ−タ
US5282370A (en) * 1992-05-07 1994-02-01 Fayette Tubular Technology Corporation Air-conditioning system accumulator and method of making same
JP3163312B2 (ja) * 1994-10-06 2001-05-08 三菱電機株式会社 冷凍サイクル用のアキュムレータ並びにその製造方法
PT672875E (pt) * 1994-03-15 2000-11-30 Mitsubishi Electric Corp Sistema de ar condicionado, acumulador para o mesmo e processo para a fabricacaodo acumulador
JPH08271094A (ja) * 1995-04-04 1996-10-18 Matsushita Refrig Co Ltd アキュムレータ
JPH1114198A (ja) * 1997-06-20 1999-01-22 Matsushita Refrig Co Ltd 気液分離器
CN205843155U (zh) * 2016-07-27 2016-12-28 广东美的暖通设备有限公司 气液分离器和具有其的空调
AU2020248049B2 (en) * 2019-03-22 2023-06-01 Nec Corporation Liquid separator, cooling system, and gas-liquid separation method

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