WO2020204145A1 - Cold storage unit, heat exchanger, and vehicle air conditioning device - Google Patents

Cold storage unit, heat exchanger, and vehicle air conditioning device Download PDF

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Publication number
WO2020204145A1
WO2020204145A1 PCT/JP2020/015233 JP2020015233W WO2020204145A1 WO 2020204145 A1 WO2020204145 A1 WO 2020204145A1 JP 2020015233 W JP2020015233 W JP 2020015233W WO 2020204145 A1 WO2020204145 A1 WO 2020204145A1
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WO
WIPO (PCT)
Prior art keywords
cold storage
storage unit
plate material
accommodating portion
heat exchanger
Prior art date
Application number
PCT/JP2020/015233
Other languages
French (fr)
Japanese (ja)
Inventor
伊佐美 米田
Original Assignee
三菱重工サーマルシステムズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱重工サーマルシステムズ株式会社 filed Critical 三菱重工サーマルシステムズ株式会社
Priority to JP2021512311A priority Critical patent/JP7210705B2/en
Priority to CN202090000471.1U priority patent/CN216645028U/en
Publication of WO2020204145A1 publication Critical patent/WO2020204145A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Definitions

  • This disclosure relates to a cold storage unit, a heat exchanger, and a vehicle air conditioner.
  • Some vehicles such as automobiles have an idling stop function that temporarily stops the engine while the vehicle is stopped.
  • the drive of the compressor is also stopped when the engine is stopped, so that the heat exchange capacity between the refrigerant and air in the evaporator (evaporator) is reduced.
  • the idling stop reduces the cooling capacity until the vehicle resumes driving, thereby impairing the comfort inside the vehicle.
  • Patent Document 1 a heat exchanger provided with a plurality of heat exchange tubes and in which fins or latent heat storage materials are arranged in a gap formed between adjacent heat exchange tubes is used. Has been done. When the compressor is stopped, the cold heat stored in the latent heat storage material is transferred to the heat exchange pipe, and is released to the air flowing through the gaps on both sides of the gap in which the latent heat storage material is arranged.
  • Patent Documents 2 and 3 also disclose similar configurations.
  • Japanese Patent No. 6214242 Japanese Patent No. 5408017 Japanese Patent No. 5903233
  • the cold storage material container in which the cold storage material (heat storage material) is housed is formed in a plate shape as shown in Patent Documents 1 to 3, and is sandwiched between adjacent heat exchange tubes. ..
  • heat exchange tubes, fins, and cold storage material containers are alternately laminated and arranged, and are fixed in close contact with each other by, for example, brazing.
  • the conventional heat exchanger provided with the cold storage material container has the heat exchange tube, fins and the cold storage material container integrated, and is manufactured in a process different from that of the heat exchanger not provided with the cold storage material. It needs to be manufactured.
  • the cold storage material container when maintenance is required for the cold storage material container, only the cold storage material container cannot be removed, so all the heat exchangers must be maintained.
  • the present disclosure has been made in view of such circumstances, and is a cold storage unit and heat exchange capable of quickly and easily attaching and detaching a member accommodating a cold storage material to and from the heat exchange portion of a heat exchanger. It is an object of the present invention to provide air conditioners for vessels and vehicles.
  • the cold storage unit, heat exchanger and vehicle air conditioner of the present disclosure employ the following means. That is, the cold storage unit according to the present disclosure is formed in a hollow shape from one end to the other end, and is provided in a single row or a plurality of storage portions having a hollow portion in which the cold storage material is stored and an outer peripheral portion of the storage portion. A plurality of metal plates arranged in a row are provided, and the extending direction of the plates is a direction intersecting the outer peripheral surface of the outer peripheral portion of the accommodating portion.
  • the accommodating portion and a plurality of metal plate materials provided on the outer peripheral portion of the accommodating portion are provided, and the accommodating portion is accommodating the cold storage material inside the hollow portion. They are arranged in one or more rows.
  • the temperature on the plate material side becomes lower, cold heat is transferred to the accommodating portion via the metal plate material, and cold heat is stored in the cold storage material accommodated inside the hollow portion. Further, when the temperature on the plate material side becomes higher, the cold heat stored in the heat storage material is transferred to the outside via the plate material.
  • the plate material Since the plate material is installed outside the accommodating portion so that the extending direction of the plate material intersects the outer peripheral surface of the outer peripheral portion of the accommodating portion, the plate material is inserted into the fin portion of the heat exchanger. Thereby, the housing is installed along the surface of the heat exchanger. Further, since the hollow portion is formed in a hollow shape from one end to the other end, the heat capacity of the cold storage material can be increased and the hollow portion is different from the case where a plurality of spaces having a relatively small capacity are formed. The formation of the part is easy.
  • the accommodating portion has a long columnar shape in one direction, the hollow portion is formed in a hollow shape along the longitudinal direction, and the plate material is formed along the longitudinal direction of the accommodating portion. It may be arranged in one row or a plurality of rows.
  • the hollow portion in the columnar housing portion long in one direction, is formed in a hollow shape along the longitudinal direction from one end to the other end.
  • the accommodating portion may be formed in a block shape, and the hollow portion may be formed in a hollow shape so as to have an internal space having a substantially rectangular parallelepiped shape.
  • the core portion is formed in a hollow shape from one end to the other end so as to have a substantially rectangular parallelepiped internal space.
  • the end portion of the plate material may be connected to the outer peripheral portion of the accommodating portion.
  • the end portion of the plate material is connected to the outer peripheral portion of the accommodating portion, and the plate material is provided on the outer peripheral portion of the accommodating portion.
  • the end portion of the plate material is exposed in the hollow portion of the accommodating portion, and the plate material may be installed in the accommodating portion through the accommodating portion.
  • the end portion of the plate material is exposed in the hollow portion of the accommodating portion, and the plate material is installed in the accommodating portion so as to penetrate the accommodating portion.
  • the cold storage unit is provided on the inner peripheral portion of the accommodating portion, one end thereof is located on the hollow portion side of the accommodating portion, and the other end portion is connected to the inner peripheral portion of the accommodating portion.
  • a plurality of metal second plates may be provided.
  • a metal second plate material provided on the inner peripheral portion of the accommodating portion is provided, and one end of the second plate material is located on the hollow portion side of the accommodating portion and the other end portion of the accommodating portion. It is connected to the inner circumference.
  • the accommodating portion is made of metal and may be integrated with the plate material.
  • the accommodating part and the plate material are both made of metal, and the accommodating part and the plate material are integrated.
  • the plate material may have a shape corresponding to the surface shape of the fin portion of the heat exchanger to be inserted.
  • the plate material since the plate material has a shape corresponding to the surface shape of the fin portion of the heat exchanger to be inserted, when the plate material is inserted into the fin portion of the heat exchanger, the plate material and the fins are inserted.
  • the contact area of the part becomes wider. As a result, the cold storage unit is less likely to come off from the heat exchanger due to friction, and the amount of heat transferred to and from the heat exchanger increases.
  • the plate material may have a tapered tip.
  • the tip of the plate material since the tip of the plate material has a tapered shape, it is easy to be inserted into the fin portion of the heat exchanger.
  • the plate material may have a protruding portion protruding in a direction intersecting the extending direction of the plate material.
  • the plate material is provided with a protruding portion protruding in a direction intersecting the extending direction of the plate material, when the plate material is inserted into the fin portion of the heat exchanger, the cold storage unit is installed. Hard to come off the heat exchanger.
  • the outer peripheral portion of the accommodating portion is provided so that the protruding direction intersects the outer peripheral surface of the outer peripheral portion of the accommodating portion, and the plate thickness is thicker than the plate material.
  • a support portion having the above may be further provided.
  • a support portion provided on the outer peripheral portion of the accommodating portion is provided, and the protruding direction of the support portion is provided so as to intersect the outer peripheral surface of the outer peripheral portion of the accommodating portion. Further, the support portion has a plate thickness thicker than that of the plate material.
  • the heat exchanger according to the present disclosure includes the above-mentioned cold storage unit, and the plate material is inserted into the fin portion and fixed.
  • the plate material is inserted into the fin portion of the heat exchanger and fixed, so that the accommodating portion is installed along the surface of the heat exchanger.
  • the cold heat is transferred to the accommodating portion through the metal plate material, and the cold heat is stored in the cold storage material accommodated inside the hollow portion. Further, when the temperature of the heat exchanger and the plate material side becomes higher, the cold heat stored in the heat storage material is transferred to the heat exchanger via the plate material.
  • the vehicle air conditioner according to the present disclosure includes the above heat exchanger.
  • the member accommodating the cold storage material can be quickly and easily attached to and detached from the heat exchange portion of the heat exchanger.
  • FIG. 5 is a cross-sectional view taken along the line XVII-XVII of FIG.
  • the heat exchanger 1 according to the first embodiment of the present disclosure will be described below with reference to the drawings.
  • the heat exchanger 1 according to the present embodiment is used, for example, as an evaporator (evaporator) of a vehicle air conditioner.
  • the heat exchanger 1 utilizes the latent heat of evaporation of the refrigerant by exchanging heat between the refrigerant flowing in the plurality of flat heat exchange tubes 4 and the air flowing outside the flat heat exchange tubes 4, and heats the heat exchanger 1. Cool the air passing through the exchanger 1. That is, the heat exchanger 1 functions as an evaporator.
  • the heat exchanger 1 includes header tanks 2 and 3, a flat heat exchange tube 4, a heat transfer fin (fin portion) 5, a cold storage unit 10, and the like.
  • the header tanks 2 and 3, the flat heat exchange tube 4 and the heat transfer fin 5 are made of metal, for example, an aluminum alloy.
  • the heat exchanger 1 provided with the cold storage unit 10 is applied as an evaporator in a vehicle air conditioner mounted on a vehicle having a cold storage performance and an idling stop function.
  • the compressor of the vehicle air conditioner is stopped, the cold heat stored in the cold storage material of the cold storage unit 10 is transmitted to the flat heat exchange pipe 4 and the heat transfer fins 5, and both sides of the gap where the cold storage unit 10 is arranged are transferred. Cold heat is released to the air flowing through the gaps between the two.
  • a heat exchanger provided with header tanks 2 and 3, a flat heat exchange tube 4 and a heat transfer fin 5 without a cold storage unit 10 is not provided with cold storage performance, but is applied as an evaporator in a vehicle air conditioner. It is possible.
  • the header tanks 2 and 3 are arranged in parallel at predetermined intervals so as to form a pair at the top and bottom.
  • the header tank 2 is installed on one end side (upper side), and a refrigerant outlet pipe (not shown) is connected via the refrigerant outlet header 6.
  • the header tank 3 is installed on the other end side (lower side), and a refrigerant inlet pipe (not shown) is connected via the refrigerant inlet header 8.
  • the header tanks 2 and 3 are formed with a plurality of insertion holes (not shown) for inserting and connecting the flat heat exchange pipe 4.
  • the plurality of insertion holes are formed in two rows parallel to the longitudinal direction of the header tanks 2 and 3, for example.
  • the flat heat exchange tube 4 is inserted into the insertion hole and fixed to the header tanks 2 and 3 by brazing, for example. As a result, the flat heat exchange tubes 4 are arranged in two rows parallel to the longitudinal direction of the header tanks 2 and 3.
  • a plurality of flat heat exchange tubes 4 are arranged in parallel between the pair of header tanks 2 and 3 so as to be separated from each other.
  • the flat heat exchange pipe 4 is a member that is long in one direction, and is provided with a plurality of refrigerant flow paths formed along the length direction inside.
  • the plurality of refrigerant channels are parallel to each other, and plate-shaped fins are provided between the two adjacent refrigerant channels.
  • One end of the flat heat exchange tube 4 is inserted into and connected to the upper header tank 2, and the other end is inserted and connected to the lower header tank 3.
  • the header tanks 2 and 3 and the flat heat exchange pipe 4 are connected so that the refrigerant flows inside both of them.
  • the heat transfer fin 5 has a corrugated vertical cross section and is arranged between two adjacent flat heat exchange tubes 4.
  • the heat transfer fin 5 is a thin plate formed into a corrugated shape (corrugated shape).
  • the flat heat exchange tube 4 is a member that is long in one direction, and air can flow in a direction perpendicular to the longitudinal direction.
  • the heat transfer fin 5 is integrated with the flat heat exchange tube 4 by brazing the top of the waveform to the flat surface of the flat heat exchange tube 4.
  • one gap formed by the thin plate of the heat transfer fin 5 has a horizontally long shape that is longer in the width direction than in the longitudinal direction of the heat transfer fin 5.
  • a plurality of gaps formed in a horizontally long shape are arranged along the longitudinal direction of the heat transfer fin 5.
  • the flat heat exchange tube 4 and the heat transfer fin 5 are alternately arranged and integrated to form the heat exchange section 7 of the heat exchanger 1.
  • End plates 9 are arranged outside the heat transfer fins 5 at both ends of the heat exchange portion 7 in the width direction.
  • One end side (upper side) and the other end side (lower side) of the end plate 9 are connected to the header tanks 2 and 3 by brazing, and are arranged between the header tanks 2 and 3.
  • the refrigerant flows from the refrigerant inlet pipe through the refrigerant inlet header 8 into the header tank 3, and then flows through the flat heat exchange pipe 4.
  • the refrigerant exchanges heat with the air passing through the heat transfer fins 5, evaporates and is gasified.
  • the gasified refrigerant flows out from the header tank 2 through the refrigerant outlet header 6 and from the refrigerant outlet pipe.
  • the refrigerant circulates inside the heat exchanger 1 for each block space by appropriately providing partition plates in the header tanks 2 and 3 to form a plurality of block spaces.
  • the cold storage unit 10 includes an accommodating portion 11, a plurality of plate members 12, a support portion 13, and the like.
  • the cold storage unit 10 is removable from the heat transfer fin 5 of the heat exchange unit 7.
  • the accommodating portion 11 is installed along the surface of the heat exchange portion 7 of the heat exchanger 1.
  • cold heat is transferred to the accommodating portion 11 via the plate material 12 to fill the inside of the hollow portion 14.
  • Cold heat is stored in the cold storage material.
  • the temperature of the flat heat exchange tube 4 and the plate material 12 side of the heat exchange unit 7 becomes higher than that of the accommodating unit 11, the cold heat stored in the heat storage material exchanges heat of the heat exchanger 1 via the plate material 12. It is transmitted to the part 7.
  • a plurality of cold storage units 10 are installed in the heat exchange unit 7 in consideration of the heat capacity of the cold storage material required in one heat exchanger 1.
  • 1 to 4 show an example in which four cold storage units 10 are installed.
  • the plurality of cold storage units 10 are installed so as to be separated from each other in the width direction of the heat exchange unit 7.
  • the accommodating portion 11 closes the air flow path in the heat transfer fin 5. Therefore, it is desirable that the number of the plurality of cold storage units 10 and the installation interval be set in consideration of the amount of air flowing through them.
  • the accommodating portion 11 is made of, for example, a synthetic resin or a metal (for example, an aluminum alloy), and has a columnar shape long in one direction. As shown in FIG. 5, the accommodating portion 11 is formed with a hollow portion 14 formed in a hollow shape along the longitudinal direction from one end to the other end. A cold storage material can be accommodated inside the hollow portion 14, and the cold storage material is filled. The hollow portion 14 is a closed space, and the cold storage material is sealed in the hollow portion 14.
  • the cold storage material is, for example, a material containing paraffin as a main component. When the cold storage material is heated from the outside, it absorbs heat from the outside and stores relatively high temperature heat, and conversely, when it is cooled from the outside, it releases heat to the outside and stores relatively low temperature heat.
  • the hollow portion 14 is formed in a hollow shape that is long in one direction along the longitudinal direction from one end to the other end, a plurality of spaces having a relatively small capacity are formed and arranged along the longitudinal direction.
  • the heat capacity of the cold storage material can be increased, and the hollow portion 14 can be easily formed.
  • the width of the accommodating portion 11 of the cold storage unit 10 is approximately the same as or slightly longer than the width of the distance between the two adjacent flat heat exchange tubes 4.
  • the plurality of plate members 12 are made of, for example, metal (for example, aluminum alloy), are provided on the outer peripheral portion of the accommodating portion 11, and are arranged in a row along the longitudinal direction of the accommodating portion 11.
  • the plate material 12 has a direction in which the extending direction from the base portion 12a to the tip portion 12b intersects the longitudinal axis of the accommodating portion 11 and the outer peripheral surface of the outer peripheral portion of the accommodating portion 11 (for example, the vertical direction). Is. Further, the width of the plate member 12 is shorter than the width of one heat transfer fin 5, that is, the width of the distance between the two adjacent flat heat exchange tubes 4. The width direction of the plate member 12 is perpendicular to the longitudinal direction of the accommodating portion 11, and corresponds to a horizontally long gap formed by the thin plate of the heat transfer fin 5. As a result, the plate material 12 can be inserted into the heat transfer fin 5.
  • the plate thickness of the plate material 12 is smaller than the gap formed by the thin plates adjacent to each other along the longitudinal direction of the heat transfer fins 5. As a result, the plate member 12 can be inserted into the heat transfer fin 5 along the plate surface direction. By inserting the plate material 12 into the heat transfer fins 5, the accommodating portion 11 is installed along the surface of the heat exchange portion 7 of the heat exchanger 1.
  • the accommodating unit 11 is in contact with the surface of the heat exchange unit 7 and the plate material 12 is in contact with the heat transfer fins 5. As a result, heat transfer is efficiently performed between the accommodating unit 11 and the heat exchange unit 7.
  • the cross-sectional shape (front view shape) of the plate material 12 is the inner surface shape of the gap formed in the heat transfer fin 5 into which the plate material 12 is inserted, that is, the corrugated shape of the thin plate (FIG. 3 and 3). It may have a shape corresponding to (see FIG. 4).
  • the plate material 12 has a curved portion in the shape at one end in the width direction.
  • the heat transfer fin 5 and the curved portion having a curved surface shape are compared with the case where the cross-sectional shape (front view shape) of the plate material 12 is simply rectangular.
  • the contact area of the plate material 12 can be increased.
  • the cold storage unit 10 is less likely to come off from the heat transfer fins 5 due to friction, and the amount of heat transferred between the plate material 12 of the cold storage unit 10 and the heat transfer fins 5 increases.
  • a protruding portion 15 may be formed on the surface of the plate material 12.
  • the projecting portion 15 projects in a direction intersecting the extending direction of the plate material 12 at the tip portion 12b of the plate material 12.
  • the protruding portion 15 is located outside on the surface opposite to the accommodating portion 11.
  • the cold storage unit 10 When the cold storage unit 10 is attached to the heat transfer fin 5, that is, when the plate material 12 is inserted into the heat transfer fin 5, the protrusion 15 is caught on the surface of the heat transfer fin 5, so that the cold storage unit 10 is the heat transfer fin. It is hard to come off from 5.
  • the support portion 13 is provided on the outer peripheral portion of the accommodating portion 11 on the same surface as the plate material 12.
  • the support portion 13 is outside the housing portion 11 so that the protruding direction of the support portion 13 intersects the longitudinal axis of the housing portion 11 and the outer peripheral surface of the outer peripheral portion of the housing portion 11. It is installed in.
  • the support portion 13 has a plate thickness thicker than that of the plate material 12. In the example shown in FIG. 5 and the like, the support portion 13 is installed only at one position in the intermediate portion in the length direction of the cold storage unit 10.
  • the support portion 13 When the cold storage unit 10 is attached to the heat transfer fin 5, that is, the support portion 13 is inserted into the heat transfer fin 5 in the same manner as the plate material 12. Since the support portion 13 has a plate thickness thicker than that of the plate material 12 and is sandwiched by the heat transfer fins 5 more strongly than the plate material 12, the cold storage unit installed in the heat transfer fins 5 is compared with the case where the support portion 13 is not provided. 10 is hard to come off.
  • the surface of the support portion 13 may be smooth or may have an uneven shape as shown in FIGS. 5 and 6. When it has an uneven shape, the frictional force increases, and the cold storage unit 10 is hard to come off from the heat transfer fins 5.
  • the plate material 12 is provided on the outer peripheral portion of the accommodating portion 11 by connecting the end portion of the plate material 12 to the outer peripheral portion of the accommodating portion 11.
  • the plate material 12 has an end portion exposed in the hollow portion 14 of the accommodating portion 11, and the plate material 12 is accommodated by being installed in the accommodating portion 11 through the accommodating portion 11. It is provided on the outer peripheral portion of the portion 11.
  • the ends of the plate 12 shown in FIGS. 8 and 9 are connected to the outer periphery or the inside of the accommodating portion 11 by, for example, an adhesive.
  • the end portion of the plate member 12 is connected to the outer peripheral portion or the inner portion of the accommodating portion 11 by insert molding.
  • the plate members 12 may be installed one by one on the accommodating portion 11, or a plurality of plate materials 12 may be installed on the base portion 12a side via a long metal base material (not shown). What is connected and integrated may be installed with respect to the accommodating portion 11.
  • the accommodating portion 11 and the plate material 12 are both made of metal, and the accommodating portion 11 and the plate material 12 may be integrated. This eliminates the need for a step of joining materials of different materials.
  • the accommodating portion 11 is made of metal
  • the hollow portion 14 is formed by cutting.
  • the heat exchanger 1 has the cold storage performance because the cold storage unit 10 is installed in the heat transfer fins 5.
  • the heat exchanger 1 having a cold storage performance can be applied as an evaporator in a vehicle air conditioner mounted on a vehicle having an idling stop function.
  • the idling stop of the vehicle When the compressor of the vehicle air conditioner is stopped due to the idling stop of the vehicle, the cold heat stored in the cold storage material is transmitted to the flat heat exchange tube 4, and the gap (heat transfer fin 5) in which the cold storage unit 10 is arranged is transferred. ), Cold heat is released to the air flowing through the gaps (heat transfer fins 5) on both sides. Therefore, the idling stop does not reduce the cooling capacity until the operation of the vehicle is resumed, and the comfort inside the vehicle is less likely to be impaired.
  • the accommodating unit via the plate material 12 Cold heat is transferred to 11, and cold heat is stored in the cold storage material filled inside the hollow portion 14. Further, when the drive of the compressor of the vehicle air conditioner is stopped at idling stop, when the temperature of the flat heat exchange pipe 4 and the plate material 12 side of the heat exchange unit 7 becomes higher than that of the accommodating unit 11, the heat exchange unit 7 is stored in the heat storage material. The cold heat is transferred to the heat exchange section 7 of the heat exchanger 1 via the plate material 12.
  • the cold storage unit 10 has a structure that can be attached to and detached from the heat transfer fins 5. Therefore, regarding the manufacturing process, the heat exchanger not provided with the cold storage unit 10 and the heat exchanger 1 provided with the cold storage unit 10 have the same process before the cold storage unit 10 is attached.
  • the step that needs to be added to manufacture the heat exchanger 1 with the cold storage unit 10 is a transfer in the heat exchanger 7 of the heat exchanger 1.
  • the cold storage unit 10 can be removed when maintenance is required for the cold storage unit 10 in the heat exchanger 1. Therefore, it is not necessary to maintain all the heat exchangers 1, and maintenance can be performed simply by removing the cold storage unit 10, and the labor and time required for maintenance can be reduced.
  • a plurality of cold storage units 10 can be installed in the heat exchange unit 7 in consideration of the heat capacity of the cold storage material required in one heat exchanger 1. Since the cold storage unit 10 is removable from the heat transfer fins 5, the heat exchanger 1 is configured to have an appropriate cooling capacity at the time of idling stop by adjusting the number of installations and the installation interval as necessary. be able to.
  • the cold storage unit 20 according to the second embodiment of the present disclosure will be described with reference to FIGS. 11 to 19. Since the configuration of the heat exchanger 1 in which the cold storage unit 20 according to the present embodiment is installed is the same as that of the first embodiment described above, detailed description thereof will be omitted.
  • the accommodating portion 11 of the cold storage unit 10 has a long shape in one direction
  • it may be in the shape of a block, such as the accommodating portion 21 of the cold storage unit 20 according to the second embodiment. Since the cold storage unit 20 has the block-shaped accommodating portion 21, the rigidity of the entire cold storage unit 20 is improved as compared with the case where the cold storage unit 20 has a long shape in one direction. As a result, it is possible to reduce the risk of the parts being deformed or damaged during the manufacturing or molding of the cold storage unit 20.
  • the cold storage unit 20 includes an accommodating portion 21, a plurality of plate members 22, and the like.
  • the cold storage unit 20 is removable from the heat transfer fin 5 of the heat exchange unit 7.
  • the accommodating portion 21 is installed along the surface of the heat exchange portion 7 of the heat exchanger 1.
  • the temperature of the flat heat exchange tube 4 and the plate material 22 side of the heat exchange unit 7 becomes lower than that of the accommodating portion 21, cold heat is transferred to the accommodating portion 21 via the plate material 22 and the hollow portion 24 is filled. Cold heat is stored in the cold storage material.
  • the temperature of the flat heat exchange tube 4 and the plate material 22 side of the heat exchange unit 7 becomes higher than that of the accommodating unit 21, the cold heat stored in the heat storage material exchanges heat with the heat exchanger 1 via the plate material 22. It is transmitted to the part 7.
  • a plurality of cold storage units 20 are installed in the heat exchange unit 7.
  • the plurality of cold storage units 20 are installed apart from each other in the height direction and the width direction of the heat exchange unit 7.
  • the cold storage unit 20 is installed, for example, in a grid pattern or a staggered pattern.
  • the accommodating portion 21 is made of, for example, synthetic resin or metal (for example, made of aluminum alloy) and has a block shape. As shown in FIGS. 13 and 14, the accommodating portion 21 is formed with a hollow portion 24 formed in a hollow shape so as to have a substantially rectangular parallelepiped internal space from one end to the other end. A cold storage material can be accommodated inside the hollow portion 24, and the cold storage material is filled. The hollow portion 24 is a closed space, and the cold storage material is sealed in the hollow portion 24.
  • the width of the accommodating portion 21 of the cold storage unit 20 is substantially the same as or slightly longer than the width of the distance between the two adjacent flat heat exchange pipes 4.
  • the plurality of plate members 22 are made of, for example, metal (for example, aluminum alloy), are provided on the outer peripheral portion of the accommodating portion 21, and are arranged in a plurality of rows on the outer peripheral portion of the accommodating portion 21.
  • the plate member 22 has a extending direction from the base portion 22a to the tip portion 22b in a direction intersecting the outer peripheral surface of the outer peripheral portion of the accommodating portion 21 (for example, a vertical direction). Further, the length from one side to the other side of the plurality of plate members 22 arranged in the width direction is the width of one heat transfer fin 5, that is, the distance between two adjacent flat heat exchange tubes 4. It is shorter than the width of the heat transfer fin 5 and corresponds to a horizontally long gap formed by the thin plate of the heat transfer fin 5. As a result, the plate material 22 can be inserted into the heat transfer fin 5.
  • the plate thickness of the plate material 22 is smaller than the gap formed by the thin plates adjacent to each other along the longitudinal direction of the heat transfer fins 5. As a result, the plate member 22 can be inserted into the heat transfer fin 5 along the plate surface direction. By inserting the plate material 22 into the heat transfer fins 5, the accommodating portion 21 is installed along the surface of the heat exchange portion 7 of the heat exchanger 1.
  • the heat transfer performance for the heat transfer fins 5 can be improved as compared with the case where one plate material is arranged.
  • the plate members may be arranged in a plurality of rows.
  • FIG. 12 shows an example in which four plate members 22 are arranged in the width direction and four in the direction orthogonal to the width direction.
  • FIG. 16 shows an example in which three plate members 22 are arranged in the width direction and five in the direction orthogonal to the width direction.
  • 15 to 17 are modified examples of the cold storage unit 20 according to the present embodiment.
  • the accommodating unit 21 is in contact with the surface of the heat exchange unit 7 and the plate material 22 is in contact with the heat transfer fins 5.
  • the plate material 22 may have a tapered tip portion 22b.
  • the tip portion 12b may have a tapered shape.
  • the cross-sectional shape (front view shape) of the plate material 22 is the inner surface shape of the gap formed in the heat transfer fin 5 into which the plate material 22 is inserted, that is, the thin plate. It may have a shape corresponding to the corrugated shape (see FIGS. 3 and 4).
  • the plate material 22 has a curved portion in the shape at one end in the width direction.
  • one or a plurality of plate members 26 may be provided on the inner peripheral portion of the accommodating portion 21 in addition to the plate material 22.
  • the plate material 26 is an example of the second plate material.
  • One end of the plate 26 is located on the hollow portion 24 side of the accommodating portion 21, and the other end is connected to the inner peripheral portion of the accommodating portion 21.
  • a plate material different from the plate material 12 may be provided on the inner peripheral portion of the accommodating portion 11.
  • the plate members 22 may be installed one by one on the accommodating portion 21, or a plurality of plate members 22 are connected to each other on the base portion 22a side via a long metal base material (not shown).
  • the integrated one may be installed with respect to the accommodating portion 21.
  • the accommodating portion 21 and the plate material 22 are both made of metal, and the accommodating portion 21 and the plate material 22 may be integrated.
  • the heat exchanger 1 has the cold storage performance because the cold storage unit 20 is installed in the heat transfer fins 5.
  • the heat exchanger 1 having a cold storage performance can be applied as an evaporator in a vehicle air conditioner mounted on a vehicle having an idling stop function.
  • the cold storage unit 20 has a structure that can be attached to and detached from the heat transfer fin 5. Therefore, regarding the manufacturing process, the heat exchanger not provided with the cold storage unit 20 and the heat exchanger 1 provided with the cold storage unit 20 have a common process before the cold storage unit 20 is attached.
  • the cold storage unit 20 can be removed when maintenance is required for the cold storage unit 20 in the heat exchanger 1.
  • a plurality of cold storage units 20 can be installed in the heat exchange unit 7 in consideration of the heat capacity of the cold storage material required in one heat exchanger 1. Since the cold storage unit 20 is removable from the heat transfer fins 5, the heat exchanger 1 is configured to have an appropriate cooling capacity at the time of idling stop by adjusting the number of installations and the installation interval as necessary. be able to.
  • Heat exchangers 2 and 3 Header tank 4: Flat heat exchange tube 5: Heat transfer fins (fins) 6: Refrigerant outlet header 8: Refrigerant inlet header 9: End plates 10, 20: Cold storage units 11, 21: Accommodating parts 12, 22: Plate material 13: Support parts 14, 24: Hollow part 15: Protruding part 26: Plate material (No. 2 plates)

Abstract

The purpose of the present invention is to quickly and easily attach/detach a member for housing a cold storage material to/from the heat exchange portion of a heat exchanger. A cold storage unit (10) comprises: a casing (11) that is formed in a hollow shape from one end to the other end and has a hollow portion (14) that houses a cold storage material therein; and a plurality of metal plates (12) that are provided on the outer periphery of the casing (11) and arranged in one or more rows. The extension direction of the plates (12) is a direction intersecting the surface of the outer periphery of the casing (11).

Description

蓄冷ユニット、熱交換器及び車両用空調装置Cold storage unit, heat exchanger and air conditioner for vehicles
　本開示は、蓄冷ユニット、熱交換器及び車両用空調装置に関するものである。 This disclosure relates to a cold storage unit, a heat exchanger, and a vehicle air conditioner.
　自動車等の車両において、停車中にエンジンを一時的に停止するアイドリングストップ機能を備えるものがある。エンジンを駆動源とする圧縮機を用いた車両用空調装置は、エンジンの停止によって圧縮機の駆動も停止することから、エバポレータ（蒸発器）における冷媒と空気の熱交換能力が低下する。アイドリングストップによって、車両の運転が再開するまで、冷房能力が低減することにより、車内の快適性が損なわれる。 Some vehicles such as automobiles have an idling stop function that temporarily stops the engine while the vehicle is stopped. In a vehicle air conditioner using a compressor whose drive source is an engine, the drive of the compressor is also stopped when the engine is stopped, so that the heat exchange capacity between the refrigerant and air in the evaporator (evaporator) is reduced. The idling stop reduces the cooling capacity until the vehicle resumes driving, thereby impairing the comfort inside the vehicle.
　そこで、下記の特許文献１に示すように、複数の熱交換管を備えるとともに、隣り合う熱交換管同士の間に形成された間隙において、フィン又は潜熱蓄熱材が配置された熱交換器が用いられている。圧縮機が停止した際には、潜熱蓄熱材に蓄えられた冷熱が熱交換管に伝えられ、潜熱蓄熱材が配置された間隙の両隣の間隙を流れる空気に放冷される。その他、特許文献２及び３にも同様の構成が開示されている。 Therefore, as shown in Patent Document 1 below, a heat exchanger provided with a plurality of heat exchange tubes and in which fins or latent heat storage materials are arranged in a gap formed between adjacent heat exchange tubes is used. Has been done. When the compressor is stopped, the cold heat stored in the latent heat storage material is transferred to the heat exchange pipe, and is released to the air flowing through the gaps on both sides of the gap in which the latent heat storage material is arranged. In addition, Patent Documents 2 and 3 also disclose similar configurations.
特許第６２１４２４２号公報Japanese Patent No. 6214242 特許第５４０８０１７号公報Japanese Patent No. 5408017 特許第５９０３２３３号公報Japanese Patent No. 5903233
　従来、蓄冷材（蓄熱材）が収容された蓄冷材容器は、特許文献１から３で示されている構成のように、プレート状に形成され、隣り合う熱交換管の間に挟み込まれている。このような熱交換器は、熱交換管、フィン及び蓄冷材容器が交互に積層して配置され、互いに密着した状態で、例えば、ろう付けによって固定されている。 Conventionally, the cold storage material container in which the cold storage material (heat storage material) is housed is formed in a plate shape as shown in Patent Documents 1 to 3, and is sandwiched between adjacent heat exchange tubes. .. In such a heat exchanger, heat exchange tubes, fins, and cold storage material containers are alternately laminated and arranged, and are fixed in close contact with each other by, for example, brazing.
　ところで、市販されている車両は、すべてがアイドリングストップ機能を有するものではないため、蓄冷材容器を備える熱交換器だけでなく、蓄冷材を備えない熱交換器も製造される。しかし、従来の蓄冷材容器を備える熱交換器は、上述したとおり、熱交換管、フィン及び蓄冷材容器が一体型のものであり、蓄冷材を備えない熱交換器とは別の製造工程で製造を行う必要がある。また、蓄冷材容器に対してメンテナンスが必要になった場合、蓄冷材容器のみを取り外すことができないため、熱交換器すべてをメンテナンスしなければならない。 By the way, not all vehicles on the market have an idling stop function, so not only heat exchangers equipped with a cold storage material container but also heat exchangers without a cold storage material are manufactured. However, as described above, the conventional heat exchanger provided with the cold storage material container has the heat exchange tube, fins and the cold storage material container integrated, and is manufactured in a process different from that of the heat exchanger not provided with the cold storage material. It needs to be manufactured. In addition, when maintenance is required for the cold storage material container, only the cold storage material container cannot be removed, so all the heat exchangers must be maintained.
　本開示は、このような事情に鑑みてなされたものであって、蓄冷材を収容する部材を熱交換器の熱交換部に対して迅速かつ容易に着脱することが可能な蓄冷ユニット、熱交換器及び車両用空調装置を提供することを目的とする。 The present disclosure has been made in view of such circumstances, and is a cold storage unit and heat exchange capable of quickly and easily attaching and detaching a member accommodating a cold storage material to and from the heat exchange portion of a heat exchanger. It is an object of the present invention to provide air conditioners for vessels and vehicles.
　上記課題を解決するために、本開示の蓄冷ユニット、熱交換器及び車両用空調装置は以下の手段を採用する。
　すなわち、本開示に係る蓄冷ユニットは、一端から他端にわたって中空状に形成され、内部に蓄冷材が収容される中空部を有する収容部と、前記収容部の外周部に設けられ、一列又は複数列に配置された複数の金属製の板材とを備え、前記板材の延設方向は、前記収容部の前記外周部の外周面に対して交差する方向である。 In order to solve the above problems, the cold storage unit, heat exchanger and vehicle air conditioner of the present disclosure employ the following means.
That is, the cold storage unit according to the present disclosure is formed in a hollow shape from one end to the other end, and is provided in a single row or a plurality of storage portions having a hollow portion in which the cold storage material is stored and an outer peripheral portion of the storage portion. A plurality of metal plates arranged in a row are provided, and the extending direction of the plates is a direction intersecting the outer peripheral surface of the outer peripheral portion of the accommodating portion.
　この構成によれば、収容部と、収容部の外周部に設けられた複数の金属製の板材を備え、収容部は、中空部の内部に蓄冷材が収容されており、複数の板材は、一列又は複数列に配置されている。板材側の方が低温になると、金属製の板材を介して収容部に冷熱が伝達されて、中空部の内部に収容された蓄冷材に冷熱が蓄えられる。また、板材側の方が高温になると、蓄熱材に蓄えられた冷熱が、板材を介して外部に伝達される。 According to this configuration, the accommodating portion and a plurality of metal plate materials provided on the outer peripheral portion of the accommodating portion are provided, and the accommodating portion is accommodating the cold storage material inside the hollow portion. They are arranged in one or more rows. When the temperature on the plate material side becomes lower, cold heat is transferred to the accommodating portion via the metal plate material, and cold heat is stored in the cold storage material accommodated inside the hollow portion. Further, when the temperature on the plate material side becomes higher, the cold heat stored in the heat storage material is transferred to the outside via the plate material.
　板材は、板材の延設方向が収容部の外周部の外周面に対して交差する方向となるように収容部の外部に設置されていることから、板材を熱交換器のフィン部に挿入することによって、収容部が熱交換器の表面に沿って設置される。また、中空部が一端から他端にわたって中空状に形成されていることから、比較的小さい容量の空間が複数形成されている場合と異なり、蓄冷材の熱容量を増加させることができ、また、中空部の形成が容易である。 Since the plate material is installed outside the accommodating portion so that the extending direction of the plate material intersects the outer peripheral surface of the outer peripheral portion of the accommodating portion, the plate material is inserted into the fin portion of the heat exchanger. Thereby, the housing is installed along the surface of the heat exchanger. Further, since the hollow portion is formed in a hollow shape from one end to the other end, the heat capacity of the cold storage material can be increased and the hollow portion is different from the case where a plurality of spaces having a relatively small capacity are formed. The formation of the part is easy.
　上記開示に係る蓄冷ユニットにおいて、前記収容部は、一方向に長い柱状であり、前記中空部は、長手方向に沿って中空状に形成され、前記板材は、前記収容部の長手方向に沿って一列又は複数列に配置されてもよい。 In the cold storage unit according to the above disclosure, the accommodating portion has a long columnar shape in one direction, the hollow portion is formed in a hollow shape along the longitudinal direction, and the plate material is formed along the longitudinal direction of the accommodating portion. It may be arranged in one row or a plurality of rows.
　この構成によれば、一方向に長い柱状の収容部において、中空部が、一端から他端にわたって、長手方向に沿って中空状に形成される。 According to this configuration, in the columnar housing portion long in one direction, the hollow portion is formed in a hollow shape along the longitudinal direction from one end to the other end.
　上記開示に係る蓄冷ユニットにおいて、前記収容部は、ブロック状であり、前記中空部は、略直方体形状の内部空間を有するように中空状に形成されてもよい。 In the cold storage unit according to the above disclosure, the accommodating portion may be formed in a block shape, and the hollow portion may be formed in a hollow shape so as to have an internal space having a substantially rectangular parallelepiped shape.
　この構成によれば、ブロック状の収容部において、中核部が、一端から他端にわたって、略直方体形状の内部空間を有するように中空状に形成される。 According to this configuration, in the block-shaped accommodating portion, the core portion is formed in a hollow shape from one end to the other end so as to have a substantially rectangular parallelepiped internal space.
　上記開示に係る蓄冷ユニットにおいて、前記板材は、端部が前記収容部の外周部に接続されてもよい。 In the cold storage unit according to the above disclosure, the end portion of the plate material may be connected to the outer peripheral portion of the accommodating portion.
　この構成によれば、板材の端部が収容部の外周部に接続されて、板材が収容部の外周部に設けられている。 According to this configuration, the end portion of the plate material is connected to the outer peripheral portion of the accommodating portion, and the plate material is provided on the outer peripheral portion of the accommodating portion.
　上記開示に係る蓄冷ユニットにおいて、前記板材は、端部が前記収容部の前記中空部に露出しており、前記収容部を貫通して前記収容部に設置されてもよい。 In the cold storage unit according to the above disclosure, the end portion of the plate material is exposed in the hollow portion of the accommodating portion, and the plate material may be installed in the accommodating portion through the accommodating portion.
　この構成によれば、板材の端部が収容部の中空部に露出し、板材が収容部を貫通する構成で収容部に設置されている。 According to this configuration, the end portion of the plate material is exposed in the hollow portion of the accommodating portion, and the plate material is installed in the accommodating portion so as to penetrate the accommodating portion.
　上記開示に係る蓄冷ユニットにおいて、前記収容部の内周部に設けられ、一端部が前記収容部の前記中空部側に位置し、他端部が前記収容部の内周部に接続された、複数の金属製の第２板材を備えてもよい。 In the cold storage unit according to the above disclosure, the cold storage unit is provided on the inner peripheral portion of the accommodating portion, one end thereof is located on the hollow portion side of the accommodating portion, and the other end portion is connected to the inner peripheral portion of the accommodating portion. A plurality of metal second plates may be provided.
　この構成によれば、収容部の内周部に設けられた金属製の第２板材を備え、第２板材は、一端部が収容部の中空部側に位置し、他端部が収容部の内周部に接続されている。 According to this configuration, a metal second plate material provided on the inner peripheral portion of the accommodating portion is provided, and one end of the second plate material is located on the hollow portion side of the accommodating portion and the other end portion of the accommodating portion. It is connected to the inner circumference.
　上記開示に係る蓄冷ユニットにおいて、前記収容部は金属製であり、前記板材と一体化されてもよい。 In the cold storage unit according to the above disclosure, the accommodating portion is made of metal and may be integrated with the plate material.
　この構成によれば、収容部と板材はいずれも金属製であり、収容部と板材は一体化されている。 According to this configuration, the accommodating part and the plate material are both made of metal, and the accommodating part and the plate material are integrated.
　上記開示に係る蓄冷ユニットにおいて、前記板材は、挿入される熱交換器のフィン部の表面形状に対応した形状を有してもよい。 In the cold storage unit according to the above disclosure, the plate material may have a shape corresponding to the surface shape of the fin portion of the heat exchanger to be inserted.
　この構成によれば、板材は、挿入される熱交換器のフィン部の表面形状に対応した形状を有していることから、板材が熱交換器のフィン部に挿入されたとき、板材とフィン部の接触面積が広くなる。これにより、蓄冷ユニットが摩擦によって熱交換器から外れにくくなり、また、熱交換器との間で伝熱される熱量が増加する。 According to this configuration, since the plate material has a shape corresponding to the surface shape of the fin portion of the heat exchanger to be inserted, when the plate material is inserted into the fin portion of the heat exchanger, the plate material and the fins are inserted. The contact area of the part becomes wider. As a result, the cold storage unit is less likely to come off from the heat exchanger due to friction, and the amount of heat transferred to and from the heat exchanger increases.
　上記開示に係る蓄冷ユニットにおいて、前記板材は、先端が先細り形状を有してもよい。 In the cold storage unit according to the above disclosure, the plate material may have a tapered tip.
　この構成によれば、板材の先端が先細り形状を有していることから、熱交換器のフィン部に挿入されやすい。 According to this configuration, since the tip of the plate material has a tapered shape, it is easy to be inserted into the fin portion of the heat exchanger.
　上記開示に係る蓄冷ユニットにおいて、前記板材は、前記板材の延設方向に対して交差する方向に突出した突出部を有してもよい。 In the cold storage unit according to the above disclosure, the plate material may have a protruding portion protruding in a direction intersecting the extending direction of the plate material.
　この構成によれば、板材において、板材の延設方向に対して交差する方向に突出した突出部が設けられていることから、板材が熱交換器のフィン部に挿入されたとき、蓄冷ユニットが熱交換器から外れにくい。 According to this configuration, since the plate material is provided with a protruding portion protruding in a direction intersecting the extending direction of the plate material, when the plate material is inserted into the fin portion of the heat exchanger, the cold storage unit is installed. Hard to come off the heat exchanger.
　上記開示に係る蓄冷ユニットにおいて、前記収容部の外周部において、突出方向が、前記収容部の前記外周部の外周面に対して交差する方向となるように設けられ、前記板材よりも厚い板厚を有する支持部を更に備えてもよい。 In the cold storage unit according to the above disclosure, the outer peripheral portion of the accommodating portion is provided so that the protruding direction intersects the outer peripheral surface of the outer peripheral portion of the accommodating portion, and the plate thickness is thicker than the plate material. A support portion having the above may be further provided.
　この構成によれば、収容部の外周部に設けられた支持部を備え、支持部の突出方向は、収容部の外周部の外周面に対して交差する方向となるように設けられている。また、支持部は、板材よりも厚い板厚を有する。支持部が熱交換器のフィン部に挿入されることによって、熱交換器に設置された蓄冷ユニットが外れにくくなる。 According to this configuration, a support portion provided on the outer peripheral portion of the accommodating portion is provided, and the protruding direction of the support portion is provided so as to intersect the outer peripheral surface of the outer peripheral portion of the accommodating portion. Further, the support portion has a plate thickness thicker than that of the plate material. By inserting the support portion into the fin portion of the heat exchanger, the cold storage unit installed in the heat exchanger is less likely to come off.
　本開示に係る熱交換器は、上記の蓄冷ユニットを備え、前記板材がフィン部に挿入されて固定されている。 The heat exchanger according to the present disclosure includes the above-mentioned cold storage unit, and the plate material is inserted into the fin portion and fixed.
　この構成によれば、板材が熱交換器のフィン部に挿入され固定されることによって、収容部が熱交換器の表面に沿って設置される。熱交換器及び板材側の方が低温になると、金属製の板材を介して収容部に冷熱が伝達されて、中空部の内部に収容された蓄冷材に冷熱が蓄えられる。また、熱交換器及び板材側の方が高温になると、蓄熱材に蓄えられた冷熱は、板材を介して熱交換器に伝達される。 According to this configuration, the plate material is inserted into the fin portion of the heat exchanger and fixed, so that the accommodating portion is installed along the surface of the heat exchanger. When the temperature of the heat exchanger and the plate material side becomes lower, the cold heat is transferred to the accommodating portion through the metal plate material, and the cold heat is stored in the cold storage material accommodated inside the hollow portion. Further, when the temperature of the heat exchanger and the plate material side becomes higher, the cold heat stored in the heat storage material is transferred to the heat exchanger via the plate material.
　本開示に係る車両用空調装置は、上記の熱交換器を備える。 The vehicle air conditioner according to the present disclosure includes the above heat exchanger.
　本開示によれば、蓄冷材を収容する部材を熱交換器の熱交換部に対して迅速かつ容易に着脱することができる。 According to the present disclosure, the member accommodating the cold storage material can be quickly and easily attached to and detached from the heat exchange portion of the heat exchanger.
本開示の第１実施形態に係る熱交換器を示す斜視図である。It is a perspective view which shows the heat exchanger which concerns on 1st Embodiment of this disclosure. 本開示の第１実施形態に係る熱交換器を示す分解斜視図である。It is an exploded perspective view which shows the heat exchanger which concerns on 1st Embodiment of this disclosure. 本開示の第１実施形態に係る熱交換器を示す正面図である。It is a front view which shows the heat exchanger which concerns on 1st Embodiment of this disclosure. 本開示の第１実施形態に係る熱交換器を示す部分拡大正面図である。It is a partially enlarged front view which shows the heat exchanger which concerns on 1st Embodiment of this disclosure. 本開示の第１実施形態に係る熱交換器の蓄冷ユニットを示す斜視図である。It is a perspective view which shows the cold storage unit of the heat exchanger which concerns on 1st Embodiment of this disclosure. 本開示の第１実施形態に係る熱交換器の蓄冷ユニットを示す側面図である。It is a side view which shows the cold storage unit of the heat exchanger which concerns on 1st Embodiment of this disclosure. 本開示の第１実施形態に係る熱交換器の蓄冷ユニットを示す背面図である。It is a rear view which shows the cold storage unit of the heat exchanger which concerns on 1st Embodiment of this disclosure. 本開示の第１実施形態に係る熱交換器の蓄冷ユニットの第１実施例を示す横断面図である。It is sectional drawing which shows 1st Example of the cold storage unit of the heat exchanger which concerns on 1st Embodiment of this disclosure. 本開示の第１実施形態に係る熱交換器の蓄冷ユニットの第２実施例を示す横断面図である。It is sectional drawing which shows the 2nd Example of the cold storage unit of the heat exchanger which concerns on 1st Embodiment of this disclosure. 本開示の第１実施形態に係る熱交換器の蓄冷ユニットの第３実施例を示す横断面図である。It is sectional drawing which shows the 3rd Example of the cold storage unit of the heat exchanger which concerns on 1st Embodiment of this disclosure. 本開示の第２実施形態に係る熱交換器の蓄冷ユニットを示す側面図である。It is a side view which shows the cold storage unit of the heat exchanger which concerns on 2nd Embodiment of this disclosure. 本開示の第２実施形態に係る熱交換器の蓄冷ユニットを示す背面図である。It is a rear view which shows the cold storage unit of the heat exchanger which concerns on 2nd Embodiment of this disclosure. 図１１のXIII－XIII線で切断した断面図である。It is sectional drawing which cut at the XIII-XIII line of FIG. 図１３のXIV－XIV線で切断した断面図である。It is sectional drawing which cut at the XIV-XIV line of FIG. 本開示の第２実施形態に係る熱交換器の蓄冷ユニットの第１変形例を示す側面図である。It is a side view which shows the 1st modification of the cold storage unit of the heat exchanger which concerns on 2nd Embodiment of this disclosure. 本開示の第２実施形態に係る熱交換器の蓄冷ユニットの第１変形例を示す背面図である。It is a rear view which shows the 1st modification of the cold storage unit of the heat exchanger which concerns on 2nd Embodiment of this disclosure. 図１５のXVII－XVII線で切断した断面図である。FIG. 5 is a cross-sectional view taken along the line XVII-XVII of FIG. 本開示の第２実施形態に係る熱交換器の蓄冷ユニットの第２変形例を示す断面図である。It is sectional drawing which shows the 2nd modification of the cold storage unit of the heat exchanger which concerns on 2nd Embodiment of this disclosure. 本開示の第２実施形態に係る熱交換器の蓄冷ユニットの板材の先端部を示す拡大断面図である。It is an enlarged cross-sectional view which shows the tip part of the plate material of the cold storage unit of the heat exchanger which concerns on 2nd Embodiment of this disclosure.
　以下に、本開示の第１実施形態に係る熱交換器１について、図面を参照して説明する。
　本実施形態に係る熱交換器１は、例えば、車両用空調装置のエバポレータ（蒸発器）に用いられる。熱交換器１は、複数本の扁平熱交換管４内を流通する冷媒と、扁平熱交換管４の外側を流通する空気とが熱交換することによって、冷媒の蒸発潜熱を利用して、熱交換器１を通過する空気を冷却する。すなわち、熱交換器１は、蒸発器として機能する。 The heat exchanger 1 according to the first embodiment of the present disclosure will be described below with reference to the drawings.
The heat exchanger 1 according to the present embodiment is used, for example, as an evaporator (evaporator) of a vehicle air conditioner. The heat exchanger 1 utilizes the latent heat of evaporation of the refrigerant by exchanging heat between the refrigerant flowing in the plurality of flat heat exchange tubes 4 and the air flowing outside the flat heat exchange tubes 4, and heats the heat exchanger 1. Cool the air passing through the exchanger 1. That is, the heat exchanger 1 functions as an evaporator.
　熱交換器１は、図１～図４に示すように、ヘッダタンク２，３と、扁平熱交換管４と、伝熱フィン（フィン部）５と、蓄冷ユニット１０などを備える。ヘッダタンク２，３、扁平熱交換管４及び伝熱フィン５は、金属製であり、例えばアルミニウム合金製である。 As shown in FIGS. 1 to 4, the heat exchanger 1 includes header tanks 2 and 3, a flat heat exchange tube 4, a heat transfer fin (fin portion) 5, a cold storage unit 10, and the like. The header tanks 2 and 3, the flat heat exchange tube 4 and the heat transfer fin 5 are made of metal, for example, an aluminum alloy.
　蓄冷ユニット１０を備える熱交換器１は、蓄冷性能を有し、アイドリングストップ機能を有する車両に搭載された車両用空調装置における蒸発器として適用される。車両用空調装置の圧縮機が停止した際には、蓄冷ユニット１０の蓄冷材に蓄えられた冷熱が扁平熱交換管４及び伝熱フィン５に伝えられ、蓄冷ユニット１０が配置された間隙の両隣の間隙を流れる空気に冷熱が放出される。 The heat exchanger 1 provided with the cold storage unit 10 is applied as an evaporator in a vehicle air conditioner mounted on a vehicle having a cold storage performance and an idling stop function. When the compressor of the vehicle air conditioner is stopped, the cold heat stored in the cold storage material of the cold storage unit 10 is transmitted to the flat heat exchange pipe 4 and the heat transfer fins 5, and both sides of the gap where the cold storage unit 10 is arranged are transferred. Cold heat is released to the air flowing through the gaps between the two.
　蓄冷ユニット１０が設置されず、ヘッダタンク２，３と、扁平熱交換管４と、伝熱フィン５を備える熱交換器は、蓄冷性能を有さないが、車両用空調装置における蒸発器として適用可能である。 A heat exchanger provided with header tanks 2 and 3, a flat heat exchange tube 4 and a heat transfer fin 5 without a cold storage unit 10 is not provided with cold storage performance, but is applied as an evaporator in a vehicle air conditioner. It is possible.
　ヘッダタンク２，３は、上下で一対となるように所定間隔で平行に配設される。ヘッダタンク２は、一端側（上方）に設置され、冷媒出口ヘッダ６を介して冷媒出口配管（図示せず。）が接続される。ヘッダタンク３は、他端側（下方）に設置され、冷媒入口ヘッダ８を介して冷媒入口配管（図示せず。）が接続される。 The header tanks 2 and 3 are arranged in parallel at predetermined intervals so as to form a pair at the top and bottom. The header tank 2 is installed on one end side (upper side), and a refrigerant outlet pipe (not shown) is connected via the refrigerant outlet header 6. The header tank 3 is installed on the other end side (lower side), and a refrigerant inlet pipe (not shown) is connected via the refrigerant inlet header 8.
　ヘッダタンク２，３には、扁平熱交換管４を挿入し接続するための複数の挿入孔（図示せず。）が形成されている。複数の挿入孔は、例えば、ヘッダタンク２，３の長手方向に対して平行に２列に形成される。扁平熱交換管４は、挿入孔に挿入され、例えばろう付けによってヘッダタンク２，３に対して固定される。これにより、扁平熱交換管４は、ヘッダタンク２，３の長手方向に対して平行に２列に配列される。 The header tanks 2 and 3 are formed with a plurality of insertion holes (not shown) for inserting and connecting the flat heat exchange pipe 4. The plurality of insertion holes are formed in two rows parallel to the longitudinal direction of the header tanks 2 and 3, for example. The flat heat exchange tube 4 is inserted into the insertion hole and fixed to the header tanks 2 and 3 by brazing, for example. As a result, the flat heat exchange tubes 4 are arranged in two rows parallel to the longitudinal direction of the header tanks 2 and 3.
　複数本の扁平熱交換管４は、一対のヘッダタンク２，３間において互いに離隔して平行に配設される。扁平熱交換管４は、一方向に長い部材であり、内部において、長さ方向に沿って形成された冷媒流路が複数設けられている。複数の冷媒流路は互いに平行であり、隣り合う二つの冷媒流路の間には、板状のフィンが設けられる。 A plurality of flat heat exchange tubes 4 are arranged in parallel between the pair of header tanks 2 and 3 so as to be separated from each other. The flat heat exchange pipe 4 is a member that is long in one direction, and is provided with a plurality of refrigerant flow paths formed along the length direction inside. The plurality of refrigerant channels are parallel to each other, and plate-shaped fins are provided between the two adjacent refrigerant channels.
　扁平熱交換管４は、一端部が上方のヘッダタンク２に挿入され接続され、他端部が下方のヘッダタンク３に挿入され接続されている。ヘッダタンク２，３と扁平熱交換管４は、両者の内部において冷媒が流通するように接続されている。 One end of the flat heat exchange tube 4 is inserted into and connected to the upper header tank 2, and the other end is inserted and connected to the lower header tank 3. The header tanks 2 and 3 and the flat heat exchange pipe 4 are connected so that the refrigerant flows inside both of them.
　伝熱フィン５は、縦断面が波形形状を有し、隣り合う２本の扁平熱交換管４間に配設される。伝熱フィン５は、薄板が波形形状（コルゲート状）に成形されたものである。扁平熱交換管４は、一方向に長い部材であり、長手方向に対して垂直方向に空気が流通可能である。伝熱フィン５は、扁平熱交換管４の扁平面に対して波形の頂部がろう付けされて、扁平熱交換管４と一体化されている。 The heat transfer fin 5 has a corrugated vertical cross section and is arranged between two adjacent flat heat exchange tubes 4. The heat transfer fin 5 is a thin plate formed into a corrugated shape (corrugated shape). The flat heat exchange tube 4 is a member that is long in one direction, and air can flow in a direction perpendicular to the longitudinal direction. The heat transfer fin 5 is integrated with the flat heat exchange tube 4 by brazing the top of the waveform to the flat surface of the flat heat exchange tube 4.
　伝熱フィン５の薄板によって形成される一つの隙間は、図３及び図４に示すように、伝熱フィン５の長手方向に比べて幅方向の方が長い横長形状である。伝熱フィン５において、横長形状に形成された一つの隙間が、伝熱フィン５の長手方向に沿って複数配列される。 As shown in FIGS. 3 and 4, one gap formed by the thin plate of the heat transfer fin 5 has a horizontally long shape that is longer in the width direction than in the longitudinal direction of the heat transfer fin 5. In the heat transfer fin 5, a plurality of gaps formed in a horizontally long shape are arranged along the longitudinal direction of the heat transfer fin 5.
　扁平熱交換管４と伝熱フィン５が交互に配置され一体化されることによって、熱交換器１の熱交換部７が構成される。熱交換部７の幅方向両端には、エンドプレート９が伝熱フィン５の外側に配設される。エンドプレート９は、一端側（上方）と他端側（下方）がヘッダタンク２，３にろう付けによって接続され、ヘッダタンク２，３間に配置されている。 The flat heat exchange tube 4 and the heat transfer fin 5 are alternately arranged and integrated to form the heat exchange section 7 of the heat exchanger 1. End plates 9 are arranged outside the heat transfer fins 5 at both ends of the heat exchange portion 7 in the width direction. One end side (upper side) and the other end side (lower side) of the end plate 9 are connected to the header tanks 2 and 3 by brazing, and are arranged between the header tanks 2 and 3.
　熱交換器１において、冷媒は、冷媒入口配管から冷媒入口ヘッダ８を経てヘッダタンク３に流入し、その後、扁平熱交換管４内を流通する。扁平熱交換管４内を流通するとき、冷媒は、伝熱フィン５を通過する空気と熱交換して蒸発しガス化される。ガス化した冷媒は、ヘッダタンク２から冷媒出口ヘッダ６を経て冷媒出口配管より流出される。 In the heat exchanger 1, the refrigerant flows from the refrigerant inlet pipe through the refrigerant inlet header 8 into the header tank 3, and then flows through the flat heat exchange pipe 4. When flowing through the flat heat exchange pipe 4, the refrigerant exchanges heat with the air passing through the heat transfer fins 5, evaporates and is gasified. The gasified refrigerant flows out from the header tank 2 through the refrigerant outlet header 6 and from the refrigerant outlet pipe.
　なお、ヘッダタンク２，３内に適宜仕切板を設けて、複数に分けられたブロック空間を形成することによって、冷媒は、ブロック空間ごとに熱交換器１内部を流通する。 Note that the refrigerant circulates inside the heat exchanger 1 for each block space by appropriately providing partition plates in the header tanks 2 and 3 to form a plurality of block spaces.
　次に、本実施形態に係る蓄冷ユニット１０について説明する。
　蓄冷ユニット１０は、図５～図１０に示すように、収容部１１と、複数の板材１２と、支持部１３などを有する。蓄冷ユニット１０は、熱交換部７の伝熱フィン５に対して着脱可能である。 Next, the cold storage unit 10 according to the present embodiment will be described.
As shown in FIGS. 5 to 10, the cold storage unit 10 includes an accommodating portion 11, a plurality of plate members 12, a support portion 13, and the like. The cold storage unit 10 is removable from the heat transfer fin 5 of the heat exchange unit 7.
　板材１２が伝熱フィン５に挿入され固定されることによって、収容部１１が熱交換器１の熱交換部７の表面に沿って設置される。熱交換部７の扁平熱交換管４及び板材１２側の方が、収容部１１よりも低温になると、板材１２を介して収容部１１に冷熱が伝達されて、中空部１４の内部に充填された蓄冷材に冷熱が蓄えられる。また、熱交換部７の扁平熱交換管４及び板材１２側の方が、収容部１１よりも高温になると、蓄熱材に蓄えられた冷熱は、板材１２を介して熱交換器１の熱交換部７に伝達される。 By inserting and fixing the plate material 12 into the heat transfer fins 5, the accommodating portion 11 is installed along the surface of the heat exchange portion 7 of the heat exchanger 1. When the temperature of the flat heat exchange tube 4 and the plate material 12 side of the heat exchange unit 7 becomes lower than that of the accommodating portion 11, cold heat is transferred to the accommodating portion 11 via the plate material 12 to fill the inside of the hollow portion 14. Cold heat is stored in the cold storage material. Further, when the temperature of the flat heat exchange tube 4 and the plate material 12 side of the heat exchange unit 7 becomes higher than that of the accommodating unit 11, the cold heat stored in the heat storage material exchanges heat of the heat exchanger 1 via the plate material 12. It is transmitted to the part 7.
　一つの熱交換器１において必要とされる蓄冷材の熱容量を考慮して、複数本の蓄冷ユニット１０が熱交換部７に設置される。図１～図４では、４本の蓄冷ユニット１０が設置されている例を示している。複数本の蓄冷ユニット１０は、熱交換部７の幅方向にわたって互いに離隔して設置される。板材１２が伝熱フィン５に挿入され固定されると、収容部１１が伝熱フィン５における空気流路を塞ぐ。そのため、複数本の蓄冷ユニット１０は、流通する空気量を考慮して設置本数や設置間隔が設定されることが望ましい。 A plurality of cold storage units 10 are installed in the heat exchange unit 7 in consideration of the heat capacity of the cold storage material required in one heat exchanger 1. 1 to 4 show an example in which four cold storage units 10 are installed. The plurality of cold storage units 10 are installed so as to be separated from each other in the width direction of the heat exchange unit 7. When the plate material 12 is inserted into the heat transfer fin 5 and fixed, the accommodating portion 11 closes the air flow path in the heat transfer fin 5. Therefore, it is desirable that the number of the plurality of cold storage units 10 and the installation interval be set in consideration of the amount of air flowing through them.
　収容部１１は、例えば合成樹脂製又は金属製（例えばアルミニウム合金製）であり、一方向に長い柱状形状を有する。収容部１１には、図５に示すように、一端から他端にわたって長手方向に沿って中空状に形成された中空部１４が形成される。中空部１４の内部には、蓄冷材が収容可能であり、蓄冷材が充填される。中空部１４は密閉された空間であり、蓄冷材は、中空部１４に封入されている。蓄冷材は、例えばパラフィンを主成分とする材料である。蓄冷材は、外部から加熱されると外部から熱を吸収して比較的高温の熱を蓄え、反対に、外部から冷却されると外部へ熱を放出して比較的低温の熱を蓄える。 The accommodating portion 11 is made of, for example, a synthetic resin or a metal (for example, an aluminum alloy), and has a columnar shape long in one direction. As shown in FIG. 5, the accommodating portion 11 is formed with a hollow portion 14 formed in a hollow shape along the longitudinal direction from one end to the other end. A cold storage material can be accommodated inside the hollow portion 14, and the cold storage material is filled. The hollow portion 14 is a closed space, and the cold storage material is sealed in the hollow portion 14. The cold storage material is, for example, a material containing paraffin as a main component. When the cold storage material is heated from the outside, it absorbs heat from the outside and stores relatively high temperature heat, and conversely, when it is cooled from the outside, it releases heat to the outside and stores relatively low temperature heat.
　また、中空部１４が、一端から他端にわたって長手方向に沿って一方向に長い中空状に形成されていることから、比較的小さい容量の空間が複数形成されて長手方向に沿って配置されている場合と異なり、蓄冷材の熱容量を増加させることができ、また、中空部１４の形成が容易である。 Further, since the hollow portion 14 is formed in a hollow shape that is long in one direction along the longitudinal direction from one end to the other end, a plurality of spaces having a relatively small capacity are formed and arranged along the longitudinal direction. The heat capacity of the cold storage material can be increased, and the hollow portion 14 can be easily formed.
　蓄冷ユニット１０の収容部１１の幅は、図３に示すように、隣り合う２本の扁平熱交換管４の間隔の幅とほぼ同一長さか、それよりもわずかに長い長さである。これにより、熱交換部７の伝熱フィン５を通過する空気流れを妨げる面積を極力減らしつつ、収容部１１と扁平熱交換管４との間の熱伝達を効率良く行うことができる。 As shown in FIG. 3, the width of the accommodating portion 11 of the cold storage unit 10 is approximately the same as or slightly longer than the width of the distance between the two adjacent flat heat exchange tubes 4. As a result, heat transfer between the accommodating portion 11 and the flat heat exchange tube 4 can be efficiently performed while reducing the area that obstructs the air flow passing through the heat transfer fins 5 of the heat exchange portion 7 as much as possible.
　複数の板材１２は、例えば金属製（例えばアルミニウム合金製）であり、収容部１１の外周部に設けられ、収容部１１の長手方向に沿って一列に配置されている。 The plurality of plate members 12 are made of, for example, metal (for example, aluminum alloy), are provided on the outer peripheral portion of the accommodating portion 11, and are arranged in a row along the longitudinal direction of the accommodating portion 11.
　板材１２は、基部１２ａから先端部１２ｂにわたる延設方向が、収容部１１の長手方向の軸に対して、かつ、収容部１１の外周部の外周面に対して交差する方向（例えば垂直方向）である。また、板材１２の幅は、１本の伝熱フィン５の幅、すなわち、隣り合う２本の扁平熱交換管４の間隔の幅よりも短い。板材１２の幅方向は、収容部１１の長手方向に対して垂直方向であり、伝熱フィン５の薄板によって形成される横長形状の隙間に対応している。これにより、板材１２が伝熱フィン５に対して挿入可能となる。 The plate material 12 has a direction in which the extending direction from the base portion 12a to the tip portion 12b intersects the longitudinal axis of the accommodating portion 11 and the outer peripheral surface of the outer peripheral portion of the accommodating portion 11 (for example, the vertical direction). Is. Further, the width of the plate member 12 is shorter than the width of one heat transfer fin 5, that is, the width of the distance between the two adjacent flat heat exchange tubes 4. The width direction of the plate member 12 is perpendicular to the longitudinal direction of the accommodating portion 11, and corresponds to a horizontally long gap formed by the thin plate of the heat transfer fin 5. As a result, the plate material 12 can be inserted into the heat transfer fin 5.
　板材１２の板厚は、伝熱フィン５の長手方向に沿って隣り合う薄板によって形成される隙間よりも小さい。これにより、板材１２を板面方向に沿って伝熱フィン５に挿入可能である。板材１２が伝熱フィン５に挿入されることによって、収容部１１が熱交換器１の熱交換部７の表面に沿って設置される。 The plate thickness of the plate material 12 is smaller than the gap formed by the thin plates adjacent to each other along the longitudinal direction of the heat transfer fins 5. As a result, the plate member 12 can be inserted into the heat transfer fin 5 along the plate surface direction. By inserting the plate material 12 into the heat transfer fins 5, the accommodating portion 11 is installed along the surface of the heat exchange portion 7 of the heat exchanger 1.
　蓄冷ユニット１０が熱交換部７に設置されたとき、収容部１１は、熱交換部７の表面と接触し、板材１２は、伝熱フィン５と接触するように配置されることが望ましい。これより、収容部１１と熱交換部７との間で効率良く熱伝達が行われる。 When the cold storage unit 10 is installed in the heat exchange unit 7, it is desirable that the accommodating unit 11 is in contact with the surface of the heat exchange unit 7 and the plate material 12 is in contact with the heat transfer fins 5. As a result, heat transfer is efficiently performed between the accommodating unit 11 and the heat exchange unit 7.
　板材１２の横断面形状（正面視形状）は、図７に示すように、板材１２が挿入される伝熱フィン５に形成された隙間の内表面形状、すなわち、薄板の波形形状（図３及び図４参照）に対応した形状を有してもよい。例えば、板材１２は、幅方向一端部における形状において湾曲部分を有する。 As shown in FIG. 7, the cross-sectional shape (front view shape) of the plate material 12 is the inner surface shape of the gap formed in the heat transfer fin 5 into which the plate material 12 is inserted, that is, the corrugated shape of the thin plate (FIG. 3 and 3). It may have a shape corresponding to (see FIG. 4). For example, the plate material 12 has a curved portion in the shape at one end in the width direction.
　これにより、板材１２が伝熱フィン５に挿入されたとき、板材１２の横断面形状（正面視形状）が単に長方形状であると比べて、曲面状を有する湾曲部分において、伝熱フィン５と板材１２の接触面積を増加させることができる。その結果、蓄冷ユニット１０が摩擦によって伝熱フィン５から外れにくくなり、また、蓄冷ユニット１０の板材１２と伝熱フィン５との間で伝熱される熱量が増加する。 As a result, when the plate material 12 is inserted into the heat transfer fin 5, the heat transfer fin 5 and the curved portion having a curved surface shape are compared with the case where the cross-sectional shape (front view shape) of the plate material 12 is simply rectangular. The contact area of the plate material 12 can be increased. As a result, the cold storage unit 10 is less likely to come off from the heat transfer fins 5 due to friction, and the amount of heat transferred between the plate material 12 of the cold storage unit 10 and the heat transfer fins 5 increases.
　図８に示すように、板材１２の表面には、突出部１５が形成されてもよい。突出部１５は、板材１２の先端部１２ｂにおいて、板材１２の延設方向に対して交差する方向に突出している。板材１２が伝熱フィン５に挿入されたとき、突出部１５は、収容部１１とは反対側の面において外部に位置する。 As shown in FIG. 8, a protruding portion 15 may be formed on the surface of the plate material 12. The projecting portion 15 projects in a direction intersecting the extending direction of the plate material 12 at the tip portion 12b of the plate material 12. When the plate member 12 is inserted into the heat transfer fin 5, the protruding portion 15 is located outside on the surface opposite to the accommodating portion 11.
　蓄冷ユニット１０が伝熱フィン５に取り付けられたとき、すなわち、板材１２が伝熱フィン５に挿入されたとき、突出部１５が伝熱フィン５の表面に引っ掛かるため、蓄冷ユニット１０が伝熱フィン５から外れにくい。 When the cold storage unit 10 is attached to the heat transfer fin 5, that is, when the plate material 12 is inserted into the heat transfer fin 5, the protrusion 15 is caught on the surface of the heat transfer fin 5, so that the cold storage unit 10 is the heat transfer fin. It is hard to come off from 5.
　支持部１３は、板材１２と同一の面において、収容部１１の外周部に設けられる。支持部１３は、支持部１３の突出方向が収容部１１の長手方向の軸に対して、かつ、収容部１１の外周部の外周面に対して交差する方向となるように収容部１１の外部に設置されている。支持部１３は、板材１２よりも厚い板厚を有する。図５などに示す例では、支持部１３は、蓄冷ユニット１０の長さ方向の中間部において１か所のみ設置される。 The support portion 13 is provided on the outer peripheral portion of the accommodating portion 11 on the same surface as the plate material 12. The support portion 13 is outside the housing portion 11 so that the protruding direction of the support portion 13 intersects the longitudinal axis of the housing portion 11 and the outer peripheral surface of the outer peripheral portion of the housing portion 11. It is installed in. The support portion 13 has a plate thickness thicker than that of the plate material 12. In the example shown in FIG. 5 and the like, the support portion 13 is installed only at one position in the intermediate portion in the length direction of the cold storage unit 10.
　蓄冷ユニット１０が伝熱フィン５に取り付けられたとき、すなわち、板材１２と同様に支持部１３が伝熱フィン５に挿入される。支持部１３は、板材１２よりも厚い板厚を有し、板材１２よりも伝熱フィン５によって強く挟み込まれるため、支持部１３がない場合に比べて、伝熱フィン５に設置された蓄冷ユニット１０が外れにくい。 When the cold storage unit 10 is attached to the heat transfer fin 5, that is, the support portion 13 is inserted into the heat transfer fin 5 in the same manner as the plate material 12. Since the support portion 13 has a plate thickness thicker than that of the plate material 12 and is sandwiched by the heat transfer fins 5 more strongly than the plate material 12, the cold storage unit installed in the heat transfer fins 5 is compared with the case where the support portion 13 is not provided. 10 is hard to come off.
　なお、支持部１３の表面は、平滑でもよいし、図５及び図６に示すように、凹凸形状を有してもよい。凹凸形状を有する場合、摩擦力が増加し、蓄冷ユニット１０は、伝熱フィン５から外れにくくなる。 The surface of the support portion 13 may be smooth or may have an uneven shape as shown in FIGS. 5 and 6. When it has an uneven shape, the frictional force increases, and the cold storage unit 10 is hard to come off from the heat transfer fins 5.
　次に、収容部１１と板材１２の接続構造について説明する。
　例えば、板材１２は、図８に示すように、板材１２の端部が収容部１１の外周部に接続されることによって、板材１２が収容部１１の外周部に設けられている。また、板材１２は、図９に示すように、端部が収容部１１の中空部１４に露出しており、収容部１１を貫通して収容部１１に設置されることによって、板材１２が収容部１１の外周部に設けられている。図８及び図９に示す板材１２の端部は、例えば接着剤によって収容部１１の外周部又は内部に接続される。または、板材１２の端部は、インサート成形によって収容部１１の外周部又は内部に接続される。 Next, the connection structure between the accommodating portion 11 and the plate material 12 will be described.
For example, in the plate material 12, as shown in FIG. 8, the plate material 12 is provided on the outer peripheral portion of the accommodating portion 11 by connecting the end portion of the plate material 12 to the outer peripheral portion of the accommodating portion 11. Further, as shown in FIG. 9, the plate material 12 has an end portion exposed in the hollow portion 14 of the accommodating portion 11, and the plate material 12 is accommodated by being installed in the accommodating portion 11 through the accommodating portion 11. It is provided on the outer peripheral portion of the portion 11. The ends of the plate 12 shown in FIGS. 8 and 9 are connected to the outer periphery or the inside of the accommodating portion 11 by, for example, an adhesive. Alternatively, the end portion of the plate member 12 is connected to the outer peripheral portion or the inner portion of the accommodating portion 11 by insert molding.
　なお、板材１２は、１枚ずつ収容部１１に対して設置されてもよいし、複数枚の板材１２が基部１２ａ側で金属製の長尺状の基材（図示せず。）を介して連結されて一体化されたものが、収容部１１に対して設置されてもよい。 The plate members 12 may be installed one by one on the accommodating portion 11, or a plurality of plate materials 12 may be installed on the base portion 12a side via a long metal base material (not shown). What is connected and integrated may be installed with respect to the accommodating portion 11.
　さらに、蓄冷ユニット１０は、図１０に示すように、収容部１１と板材１２はいずれも金属製であり、収容部１１と板材１２は一体化されていてもよい。これにより、材質の異なるもの接合する工程が不要になる。収容部１１が金属製である場合、中空部１４は、切削加工によって形成される。 Further, as shown in FIG. 10, in the cold storage unit 10, the accommodating portion 11 and the plate material 12 are both made of metal, and the accommodating portion 11 and the plate material 12 may be integrated. This eliminates the need for a step of joining materials of different materials. When the accommodating portion 11 is made of metal, the hollow portion 14 is formed by cutting.
　以上、本実施形態によれば、蓄冷ユニット１０が伝熱フィン５に設置されていることにより、熱交換器１は、蓄冷性能を有する。蓄冷性能を有する熱交換器１は、アイドリングストップ機能を有する車両に搭載された車両用空調装置における蒸発器として適用され得る。 As described above, according to the present embodiment, the heat exchanger 1 has the cold storage performance because the cold storage unit 10 is installed in the heat transfer fins 5. The heat exchanger 1 having a cold storage performance can be applied as an evaporator in a vehicle air conditioner mounted on a vehicle having an idling stop function.
　車両のアイドリングストップによって、車両用空調装置の圧縮機が停止した際には、蓄冷材に蓄えられた冷熱が扁平熱交換管４に伝えられ、蓄冷ユニット１０が配置された間隙（伝熱フィン５）の両隣の間隙（伝熱フィン５）を流れる空気に冷熱が放出される。したがって、アイドリングストップによって、車両の運転が再開するまで、冷房能力が低減することがなく、車内の快適性が損なわれにくくなる。 When the compressor of the vehicle air conditioner is stopped due to the idling stop of the vehicle, the cold heat stored in the cold storage material is transmitted to the flat heat exchange tube 4, and the gap (heat transfer fin 5) in which the cold storage unit 10 is arranged is transferred. ), Cold heat is released to the air flowing through the gaps (heat transfer fins 5) on both sides. Therefore, the idling stop does not reduce the cooling capacity until the operation of the vehicle is resumed, and the comfort inside the vehicle is less likely to be impaired.
　車両用空調装置の圧縮機が駆動している冷房運転時、熱交換部７の扁平熱交換管４及び板材１２側の方が、収容部１１よりも低温になると、板材１２を介して収容部１１に冷熱が伝達されて、中空部１４の内部に充填された蓄冷材に冷熱が蓄えられる。また、車両用空調装置の圧縮機の駆動が停止したアイドリングストップ時、熱交換部７の扁平熱交換管４及び板材１２側の方が、収容部１１よりも高温になると、蓄熱材に蓄えられた冷熱は、板材１２を介して熱交換器１の熱交換部７に伝達される。 During the cooling operation in which the compressor of the vehicle air conditioner is driven, when the temperature of the flat heat exchange pipe 4 and the plate material 12 side of the heat exchange unit 7 becomes lower than that of the accommodating unit 11, the accommodating unit via the plate material 12 Cold heat is transferred to 11, and cold heat is stored in the cold storage material filled inside the hollow portion 14. Further, when the drive of the compressor of the vehicle air conditioner is stopped at idling stop, when the temperature of the flat heat exchange pipe 4 and the plate material 12 side of the heat exchange unit 7 becomes higher than that of the accommodating unit 11, the heat exchange unit 7 is stored in the heat storage material. The cold heat is transferred to the heat exchange section 7 of the heat exchanger 1 via the plate material 12.
　本実施形態に係る蓄冷ユニット１０は、伝熱フィン５に対して着脱可能な構成を有している。そのため、製造工程に関して、蓄冷ユニット１０を備えない熱交換器と、蓄冷ユニット１０を備える熱交換器１は、蓄冷ユニット１０を取り付ける前までの工程が共通である。 The cold storage unit 10 according to the present embodiment has a structure that can be attached to and detached from the heat transfer fins 5. Therefore, regarding the manufacturing process, the heat exchanger not provided with the cold storage unit 10 and the heat exchanger 1 provided with the cold storage unit 10 have the same process before the cold storage unit 10 is attached.
　蓄冷ユニット１０を備えない熱交換器を製造する工程と比べて、蓄冷ユニット１０を備える熱交換器１を製造するために追加する必要がある工程は、熱交換器１の熱交換部７における伝熱フィン５に対して、蓄冷ユニット１０の板材１２を挿入する工程である。したがって、熱交換管、フィン及び蓄冷材容器が一体型の従来の熱交換器を製造する場合と異なり、蓄冷材を備える熱交換器のためだけの一連の製造ラインが不要になる。 Compared to the process of manufacturing a heat exchanger without the cold storage unit 10, the step that needs to be added to manufacture the heat exchanger 1 with the cold storage unit 10 is a transfer in the heat exchanger 7 of the heat exchanger 1. This is a step of inserting the plate material 12 of the cold storage unit 10 into the heat fins 5. Therefore, unlike the case of manufacturing a conventional heat exchanger in which the heat exchange tube, fins and the cold storage material container are integrated, a series of production lines only for the heat exchanger provided with the cold storage material becomes unnecessary.
　また、熱交換管、フィン及び蓄冷材容器が一体型の熱交換器と異なり、熱交換器１において蓄冷ユニット１０に対してメンテナンスが必要になった場合、蓄冷ユニット１０のみを取り外すことができる。そのため、熱交換器１すべてをメンテナンスする必要がなく、蓄冷ユニット１０を取り外すだけでメンテナンスが可能になり、メンテナンスにかかる手間や時間を低減できる。 Further, unlike the heat exchanger in which the heat exchanger tube, fins and the cold storage material container are integrated, only the cold storage unit 10 can be removed when maintenance is required for the cold storage unit 10 in the heat exchanger 1. Therefore, it is not necessary to maintain all the heat exchangers 1, and maintenance can be performed simply by removing the cold storage unit 10, and the labor and time required for maintenance can be reduced.
　さらに、本実施形態では、一つの熱交換器１において必要とされる蓄冷材の熱容量を考慮して、複数本の蓄冷ユニット１０を熱交換部７に設置できる。蓄冷ユニット１０は、伝熱フィン５に対して着脱可能であるため、必要に応じて設置本数や設置間隔を調整することによって、熱交換器１をアイドリングストップ時の冷却能力に適切な構成とすることができる。 Further, in the present embodiment, a plurality of cold storage units 10 can be installed in the heat exchange unit 7 in consideration of the heat capacity of the cold storage material required in one heat exchanger 1. Since the cold storage unit 10 is removable from the heat transfer fins 5, the heat exchanger 1 is configured to have an appropriate cooling capacity at the time of idling stop by adjusting the number of installations and the installation interval as necessary. be able to.
　次に、図１１～図１９を参照して、本開示の第２実施形態に係る蓄冷ユニット２０について説明する。なお、本実施形態に係る蓄冷ユニット２０が設置される熱交換器１の構成は、上述した第１実施形態と同様であるため、詳細な説明を省略する。 Next, the cold storage unit 20 according to the second embodiment of the present disclosure will be described with reference to FIGS. 11 to 19. Since the configuration of the heat exchanger 1 in which the cold storage unit 20 according to the present embodiment is installed is the same as that of the first embodiment described above, detailed description thereof will be omitted.
　第１実施形態において、蓄冷ユニット１０の収容部１１は、一方向に長い形状を有する場合について説明したが、本開示はこの例に限定されない。例えば、第２実施形態に係る蓄冷ユニット２０の収容部２１のように、ブロック状であってもよい。蓄冷ユニット２０がブロック状の収容部２１を有することで、一方向に長い形状を有する場合に比べて、蓄冷ユニット２０全体の剛性が向上する。その結果、蓄冷ユニット２０の製造時又は成形時において、部品が変形したり損傷したりするリスクを低減できる。 In the first embodiment, the case where the accommodating portion 11 of the cold storage unit 10 has a long shape in one direction has been described, but the present disclosure is not limited to this example. For example, it may be in the shape of a block, such as the accommodating portion 21 of the cold storage unit 20 according to the second embodiment. Since the cold storage unit 20 has the block-shaped accommodating portion 21, the rigidity of the entire cold storage unit 20 is improved as compared with the case where the cold storage unit 20 has a long shape in one direction. As a result, it is possible to reduce the risk of the parts being deformed or damaged during the manufacturing or molding of the cold storage unit 20.
　蓄冷ユニット２０は、図１１～図１４に示すように、収容部２１と、複数の板材２２などを有する。蓄冷ユニット２０は、熱交換部７の伝熱フィン５に対して着脱可能である。 As shown in FIGS. 11 to 14, the cold storage unit 20 includes an accommodating portion 21, a plurality of plate members 22, and the like. The cold storage unit 20 is removable from the heat transfer fin 5 of the heat exchange unit 7.
　板材２２が伝熱フィン５に挿入され固定されることによって、収容部２１が熱交換器１の熱交換部７の表面に沿って設置される。熱交換部７の扁平熱交換管４及び板材２２側の方が、収容部２１よりも低温になると、板材２２を介して収容部２１に冷熱が伝達されて、中空部２４の内部に充填された蓄冷材に冷熱が蓄えられる。また、熱交換部７の扁平熱交換管４及び板材２２側の方が、収容部２１よりも高温になると、蓄熱材に蓄えられた冷熱は、板材２２を介して熱交換器１の熱交換部７に伝達される。 By inserting and fixing the plate material 22 into the heat transfer fins 5, the accommodating portion 21 is installed along the surface of the heat exchange portion 7 of the heat exchanger 1. When the temperature of the flat heat exchange tube 4 and the plate material 22 side of the heat exchange unit 7 becomes lower than that of the accommodating portion 21, cold heat is transferred to the accommodating portion 21 via the plate material 22 and the hollow portion 24 is filled. Cold heat is stored in the cold storage material. Further, when the temperature of the flat heat exchange tube 4 and the plate material 22 side of the heat exchange unit 7 becomes higher than that of the accommodating unit 21, the cold heat stored in the heat storage material exchanges heat with the heat exchanger 1 via the plate material 22. It is transmitted to the part 7.
　一つの熱交換器１において必要とされる蓄冷材の熱容量を考慮して、複数個の蓄冷ユニット２０が熱交換部７に設置される。複数個の蓄冷ユニット２０は、熱交換部７の高さ方向及び幅方向にわたって、互いに離隔して設置される。蓄冷ユニット２０は、例えば格子状、又は、千鳥状に設置される。板材２２が伝熱フィン５に挿入され固定されると、収容部２１が伝熱フィン５における空気流路を塞ぐ。そのため、複数個の蓄冷ユニット２０は、流通する空気量を考慮して設置個数や設置間隔が設定されることが望ましい。 Considering the heat capacity of the cold storage material required in one heat exchanger 1, a plurality of cold storage units 20 are installed in the heat exchange unit 7. The plurality of cold storage units 20 are installed apart from each other in the height direction and the width direction of the heat exchange unit 7. The cold storage unit 20 is installed, for example, in a grid pattern or a staggered pattern. When the plate material 22 is inserted into the heat transfer fin 5 and fixed, the accommodating portion 21 closes the air flow path in the heat transfer fin 5. Therefore, it is desirable that the number of the plurality of cold storage units 20 and the installation interval be set in consideration of the amount of air flowing through them.
　収容部２１は、例えば合成樹脂製又は金属製（例えばアルミニウム合金製）であり、ブロック状を有する。収容部２１には、図１３及び図１４に示すように、一端から他端にわたって略直方体形状の内部空間を有するように中空状に形成された中空部２４が形成される。中空部２４の内部には、蓄冷材が収容可能であり、蓄冷材が充填される。中空部２４は密閉された空間であり、蓄冷材は、中空部２４に封入されている。蓄冷ユニット２０の収容部２１の幅は、隣り合う２本の扁平熱交換管４の間隔の幅とほぼ同一長さか、それよりもわずかに長い長さである。 The accommodating portion 21 is made of, for example, synthetic resin or metal (for example, made of aluminum alloy) and has a block shape. As shown in FIGS. 13 and 14, the accommodating portion 21 is formed with a hollow portion 24 formed in a hollow shape so as to have a substantially rectangular parallelepiped internal space from one end to the other end. A cold storage material can be accommodated inside the hollow portion 24, and the cold storage material is filled. The hollow portion 24 is a closed space, and the cold storage material is sealed in the hollow portion 24. The width of the accommodating portion 21 of the cold storage unit 20 is substantially the same as or slightly longer than the width of the distance between the two adjacent flat heat exchange pipes 4.
　複数の板材２２は、例えば金属製（例えばアルミニウム合金製）であり、収容部２１の外周部に設けられ、収容部２１の外周部に複数列に配置されている。 The plurality of plate members 22 are made of, for example, metal (for example, aluminum alloy), are provided on the outer peripheral portion of the accommodating portion 21, and are arranged in a plurality of rows on the outer peripheral portion of the accommodating portion 21.
　板材２２は、基部２２ａから先端部２２ｂにわたる延設方向が、収容部２１の外周部の外周面に対して交差する方向（例えば垂直方向）である。また、幅方向に配置された複数の板材２２の幅方向一側から他側までの長さは、１本の伝熱フィン５の幅、すなわち、隣り合う２本の扁平熱交換管４の間隔の幅よりも短く、かつ、伝熱フィン５の薄板によって形成される横長形状の隙間に対応している。これにより、板材２２が伝熱フィン５に対して挿入可能となる。 The plate member 22 has a extending direction from the base portion 22a to the tip portion 22b in a direction intersecting the outer peripheral surface of the outer peripheral portion of the accommodating portion 21 (for example, a vertical direction). Further, the length from one side to the other side of the plurality of plate members 22 arranged in the width direction is the width of one heat transfer fin 5, that is, the distance between two adjacent flat heat exchange tubes 4. It is shorter than the width of the heat transfer fin 5 and corresponds to a horizontally long gap formed by the thin plate of the heat transfer fin 5. As a result, the plate material 22 can be inserted into the heat transfer fin 5.
　板材２２の板厚は、伝熱フィン５の長手方向に沿って隣り合う薄板によって形成される隙間よりも小さい。これにより、板材２２を板面方向に沿って伝熱フィン５に挿入可能である。板材２２が伝熱フィン５に挿入されることによって、収容部２１が熱交換器１の熱交換部７の表面に沿って設置される。 The plate thickness of the plate material 22 is smaller than the gap formed by the thin plates adjacent to each other along the longitudinal direction of the heat transfer fins 5. As a result, the plate member 22 can be inserted into the heat transfer fin 5 along the plate surface direction. By inserting the plate material 22 into the heat transfer fins 5, the accommodating portion 21 is installed along the surface of the heat exchange portion 7 of the heat exchanger 1.
　幅方向に複数の板材２２が配置されることによって、１枚の板材が配置される場合に比べて、伝熱フィン５に対する伝熱性能を向上させることができる。なお、第１実施形態では、幅方向に１枚の板材１２が配置される場合について説明したが、第１実施形態のように一方向に長い蓄冷ユニットの場合においても、第２実施形態と同様に、板材が複数列に配置されてもよい。図１２では、板材２２が、幅方向に４枚、幅方向に直交する方向に４枚配置される例を示している。図１６では、板材２２が、幅方向に３枚、幅方向に直交する方向に５枚配置される例を示している。図１５～図１７は、本実施形態に係る蓄冷ユニット２０の変形例である。 By arranging the plurality of plate materials 22 in the width direction, the heat transfer performance for the heat transfer fins 5 can be improved as compared with the case where one plate material is arranged. In the first embodiment, the case where one plate member 12 is arranged in the width direction has been described, but the case of the cold storage unit long in one direction as in the first embodiment is the same as in the second embodiment. In addition, the plate members may be arranged in a plurality of rows. FIG. 12 shows an example in which four plate members 22 are arranged in the width direction and four in the direction orthogonal to the width direction. FIG. 16 shows an example in which three plate members 22 are arranged in the width direction and five in the direction orthogonal to the width direction. 15 to 17 are modified examples of the cold storage unit 20 according to the present embodiment.
　蓄冷ユニット２０が熱交換部７に設置されたとき、収容部２１は、熱交換部７の表面と接触し、板材２２は、伝熱フィン５と接触するように配置されることが望ましい。これより、収容部２１と熱交換部７との間で効率良く熱伝達が行われる。板材２２は、図１９に示すように、先端部２２ｂが先細り形状を有してもよい。これにより、板材２２が、伝熱フィン５に挿入されやすい。なお、第１実施形態の板材１２においても、同様に、先端部１２ｂが先細り形状を有してもよい。 When the cold storage unit 20 is installed in the heat exchange unit 7, it is desirable that the accommodating unit 21 is in contact with the surface of the heat exchange unit 7 and the plate material 22 is in contact with the heat transfer fins 5. As a result, heat transfer is efficiently performed between the accommodating unit 21 and the heat exchange unit 7. As shown in FIG. 19, the plate material 22 may have a tapered tip portion 22b. As a result, the plate material 22 is easily inserted into the heat transfer fin 5. Similarly, in the plate material 12 of the first embodiment, the tip portion 12b may have a tapered shape.
　板材２２の横断面形状（正面視形状）は、第１実施形態の図７で示したように、板材２２が挿入される伝熱フィン５に形成された隙間の内表面形状、すなわち、薄板の波形形状（図３及び図４参照）に対応した形状を有してもよい。例えば、板材２２は、幅方向一端部における形状において湾曲部分を有する。これにより、板材２２が伝熱フィン５に挿入されたとき、板材２２の横断面形状（正面視形状）が単に長方形状であると比べて、曲面状を有する湾曲部分において、伝熱フィン５と板材１２の接触面積を増加させることができる。 As shown in FIG. 7 of the first embodiment, the cross-sectional shape (front view shape) of the plate material 22 is the inner surface shape of the gap formed in the heat transfer fin 5 into which the plate material 22 is inserted, that is, the thin plate. It may have a shape corresponding to the corrugated shape (see FIGS. 3 and 4). For example, the plate material 22 has a curved portion in the shape at one end in the width direction. As a result, when the plate material 22 is inserted into the heat transfer fin 5, the heat transfer fin 5 and the curved portion having a curved surface shape are compared with the case where the cross-sectional shape (front view shape) of the plate material 22 is simply rectangular. The contact area of the plate material 12 can be increased.
　図１３及び図１４に示すように、板材２２とは別に、１枚又は複数枚の板材２６が、収容部２１の内周部に設けられてもよい。板材２６は、第２板材の一例である。板材２６は、一端部が収容部２１の中空部２４側に位置し、他端部が収容部２１の内周部に接続される。なお、第１実施形態の収容部１１においても、板材１２とは別の板材が収容部１１の内周部に設けられてもよい。 As shown in FIGS. 13 and 14, one or a plurality of plate members 26 may be provided on the inner peripheral portion of the accommodating portion 21 in addition to the plate material 22. The plate material 26 is an example of the second plate material. One end of the plate 26 is located on the hollow portion 24 side of the accommodating portion 21, and the other end is connected to the inner peripheral portion of the accommodating portion 21. In the accommodating portion 11 of the first embodiment, a plate material different from the plate material 12 may be provided on the inner peripheral portion of the accommodating portion 11.
　板材２２は、１枚ずつ収容部２１に対して設置されてもよいし、複数枚の板材２２が基部２２ａ側で金属製の長尺状の基材（図示せず。）を介して連結されて一体化されたものが、収容部２１に対して設置されてもよい。 The plate members 22 may be installed one by one on the accommodating portion 21, or a plurality of plate members 22 are connected to each other on the base portion 22a side via a long metal base material (not shown). The integrated one may be installed with respect to the accommodating portion 21.
　さらに、蓄冷ユニット２０は、図１８に示すように、収容部２１と板材２２はいずれも金属製であり、収容部２１と板材２２は一体化されていてもよい。 Further, as shown in FIG. 18, in the cold storage unit 20, the accommodating portion 21 and the plate material 22 are both made of metal, and the accommodating portion 21 and the plate material 22 may be integrated.
　以上、本実施形態によれば、蓄冷ユニット２０が伝熱フィン５に設置されていることにより、熱交換器１は、蓄冷性能を有する。蓄冷性能を有する熱交換器１は、アイドリングストップ機能を有する車両に搭載された車両用空調装置における蒸発器として適用され得る。 As described above, according to the present embodiment, the heat exchanger 1 has the cold storage performance because the cold storage unit 20 is installed in the heat transfer fins 5. The heat exchanger 1 having a cold storage performance can be applied as an evaporator in a vehicle air conditioner mounted on a vehicle having an idling stop function.
　本実施形態に係る蓄冷ユニット２０は、伝熱フィン５に対して着脱可能な構成を有している。そのため、製造工程に関して、蓄冷ユニット２０を備えない熱交換器と、蓄冷ユニット２０を備える熱交換器１は、蓄冷ユニット２０を取り付ける前までの工程が共通である。 The cold storage unit 20 according to the present embodiment has a structure that can be attached to and detached from the heat transfer fin 5. Therefore, regarding the manufacturing process, the heat exchanger not provided with the cold storage unit 20 and the heat exchanger 1 provided with the cold storage unit 20 have a common process before the cold storage unit 20 is attached.
　また、熱交換管、フィン及び蓄冷材容器が一体型の熱交換器と異なり、熱交換器１において蓄冷ユニット２０に対してメンテナンスが必要になった場合、蓄冷ユニット２０のみを取り外すことができる。 Further, unlike the heat exchanger in which the heat exchanger tube, fins and the cold storage material container are integrated, only the cold storage unit 20 can be removed when maintenance is required for the cold storage unit 20 in the heat exchanger 1.
　さらに、本実施形態においても、一つの熱交換器１において必要とされる蓄冷材の熱容量を考慮して、複数本の蓄冷ユニット２０を熱交換部７に設置できる。蓄冷ユニット２０は、伝熱フィン５に対して着脱可能であるため、必要に応じて設置本数や設置間隔を調整することによって、熱交換器１をアイドリングストップ時の冷却能力に適切な構成とすることができる。 Further, also in the present embodiment, a plurality of cold storage units 20 can be installed in the heat exchange unit 7 in consideration of the heat capacity of the cold storage material required in one heat exchanger 1. Since the cold storage unit 20 is removable from the heat transfer fins 5, the heat exchanger 1 is configured to have an appropriate cooling capacity at the time of idling stop by adjusting the number of installations and the installation interval as necessary. be able to.
１　　：熱交換器
２，３　　：ヘッダタンク
４　　：扁平熱交換管
５　　：伝熱フィン（フィン部）
６　　：冷媒出口ヘッダ
８　　：冷媒入口ヘッダ
９　　：エンドプレート
１０，２０　：蓄冷ユニット
１１，２１　：収容部
１２，２２　：板材
１３　：支持部
１４，２４　：中空部
１５　：突出部
２６　：板材（第２板材） 1: Heat exchangers 2 and 3: Header tank 4: Flat heat exchange tube 5: Heat transfer fins (fins)
6: Refrigerant outlet header 8: Refrigerant inlet header 9: End plates 10, 20: Cold storage units 11, 21: Accommodating parts 12, 22: Plate material 13: Support parts 14, 24: Hollow part 15: Protruding part 26: Plate material (No. 2 plates)

Claims (13)

  1. 　一端から他端にわたって中空状に形成され、内部に蓄冷材が収容される中空部を有する収容部と、
    　前記収容部の外周部に設けられ、一列又は複数列に配置された複数の金属製の板材と、
    を備え、
    　前記板材の延設方向は、前記収容部の前記外周部の外周面に対して交差する方向である蓄冷ユニット。     An accommodating portion that is formed in a hollow shape from one end to the other end and has a hollow portion that accommodates a cold storage material inside.
    A plurality of metal plates provided on the outer peripheral portion of the accommodating portion and arranged in one row or a plurality of rows, and
    With
    The cold storage unit in which the plate material is extended in a direction intersecting the outer peripheral surface of the outer peripheral portion of the accommodating portion.
  2. 　前記収容部は、一方向に長い柱状であり、
    　前記中空部は、長手方向に沿って中空状に形成され、
    　前記板材は、前記収容部の長手方向に沿って一列又は複数列に配置される請求項１に記載の蓄冷ユニット。     The accommodating portion has a columnar shape that is long in one direction.
    The hollow portion is formed in a hollow shape along the longitudinal direction.
    The cold storage unit according to claim 1, wherein the plate members are arranged in a single row or a plurality of rows along the longitudinal direction of the accommodating portion.
  3. 　前記収容部は、ブロック状であり、
    　前記中空部は、略直方体形状の内部空間を有するように中空状に形成される請求項１に記載の蓄冷ユニット。     The housing portion is block-shaped and has a block shape.
    The cold storage unit according to claim 1, wherein the hollow portion is formed in a hollow shape so as to have an internal space having a substantially rectangular parallelepiped shape.
  4. 　前記板材は、端部が前記収容部の外周部に接続されている請求項１から３のいずれか１項に記載の蓄冷ユニット。 The cold storage unit according to any one of claims 1 to 3, wherein the plate material has an end connected to an outer peripheral portion of the accommodating portion.
  5. 　前記板材は、端部が前記収容部の前記中空部に露出しており、前記収容部を貫通して前記収容部に設置されている請求項１から３のいずれか１項に記載の蓄冷ユニット。 The cold storage unit according to any one of claims 1 to 3, wherein the end portion of the plate material is exposed in the hollow portion of the accommodating portion, and the plate material penetrates the accommodating portion and is installed in the accommodating portion. ..
  6. 　前記収容部の内周部に設けられ、一端部が前記収容部の前記中空部側に位置し、他端部が前記収容部の内周部に接続された、金属製の第２板材を備える請求項１から５のいずれか１項に記載の蓄冷ユニット。 A second metal plate material provided on the inner peripheral portion of the accommodating portion, one end of which is located on the hollow portion side of the accommodating portion and the other end of which is connected to the inner peripheral portion of the accommodating portion. The cold storage unit according to any one of claims 1 to 5.
  7. 　前記収容部は金属製であり、前記板材と一体化されている請求項１から６のいずれか１項に記載の蓄冷ユニット。 The cold storage unit according to any one of claims 1 to 6, wherein the accommodating portion is made of metal and is integrated with the plate material.
  8. 　前記板材は、挿入される熱交換器のフィン部の表面形状に対応した形状を有する請求項１から７のいずれか１項に記載の蓄冷ユニット。 The cold storage unit according to any one of claims 1 to 7, wherein the plate material has a shape corresponding to the surface shape of the fin portion of the heat exchanger to be inserted.
  9. 　前記板材は、先端が先細り形状を有している請求項１から８のいずれか１項に記載の蓄冷ユニット。 The cold storage unit according to any one of claims 1 to 8, wherein the plate material has a tapered tip.
  10. 　前記板材は、前記板材の延設方向に対して交差する方向に突出した突出部を有する請求項１から９のいずれか１項に記載の蓄冷ユニット。 The cold storage unit according to any one of claims 1 to 9, wherein the plate material has a protruding portion protruding in a direction intersecting the extending direction of the plate material.
  11. 　前記収容部の外周部において、突出方向が、前記収容部の前記外周部の外周面に対して交差する方向となるように設けられ、前記板材よりも厚い板厚を有する支持部を更に備える請求項１から１０のいずれか１項に記載の蓄冷ユニット。 A claim that the outer peripheral portion of the accommodating portion is provided so that the protruding direction intersects the outer peripheral surface of the outer peripheral portion of the accommodating portion, and further includes a support portion having a plate thickness thicker than that of the plate material. Item 2. The cold storage unit according to any one of Items 1 to 10.
  12. 　請求項１から１１のいずれか１項に記載の蓄冷ユニットを備え、前記板材がフィン部に挿入されて固定されている熱交換器。 A heat exchanger provided with the cold storage unit according to any one of claims 1 to 11, wherein the plate material is inserted into a fin portion and fixed.
  13. 　請求項１２に記載の熱交換器を備える車両用空調装置。
          A vehicle air conditioner including the heat exchanger according to claim 12.
PCT/JP2020/015233 2019-04-02 2020-04-02 Cold storage unit, heat exchanger, and vehicle air conditioning device WO2020204145A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201449096U (en) * 2009-03-16 2010-05-05 黄洪滔 Wavy fin type cold-accumulation heat exchanger
JP2011133182A (en) * 2009-12-25 2011-07-07 Showa Denko Kk Evaporator including cooling storage function
JP2014034037A (en) * 2012-08-07 2014-02-24 Denso Corp Cold storage heat exchanger and method of manufacturing the same
JP2017171170A (en) * 2016-03-24 2017-09-28 株式会社ヴァレオジャパン Evaporator of vehicle air conditioner
JP2018062298A (en) * 2016-10-14 2018-04-19 株式会社デンソー Air conditioning device and method for manufacturing the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201449096U (en) * 2009-03-16 2010-05-05 黄洪滔 Wavy fin type cold-accumulation heat exchanger
JP2011133182A (en) * 2009-12-25 2011-07-07 Showa Denko Kk Evaporator including cooling storage function
JP2014034037A (en) * 2012-08-07 2014-02-24 Denso Corp Cold storage heat exchanger and method of manufacturing the same
JP2017171170A (en) * 2016-03-24 2017-09-28 株式会社ヴァレオジャパン Evaporator of vehicle air conditioner
JP2018062298A (en) * 2016-10-14 2018-04-19 株式会社デンソー Air conditioning device and method for manufacturing the same

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