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WO2017043382A1 - Dispositif de chauffage de fluide et son procédé de fabrication - Google Patents

Dispositif de chauffage de fluide et son procédé de fabrication Download PDF

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Publication number
WO2017043382A1
WO2017043382A1 PCT/JP2016/075427 JP2016075427W WO2017043382A1 WO 2017043382 A1 WO2017043382 A1 WO 2017043382A1 JP 2016075427 W JP2016075427 W JP 2016075427W WO 2017043382 A1 WO2017043382 A1 WO 2017043382A1
Authority
WO
WIPO (PCT)
Prior art keywords
heater
fluid
fluid heating
heating unit
heating device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2016/075427
Other languages
English (en)
Japanese (ja)
Inventor
小笠原　武
神山　直久
宏起 吉岡
大塚　隆
大樹 鈴木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marelli Corp
Original Assignee
Calsonic Kansei Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2015177706A external-priority patent/JP6431831B2/ja
Priority claimed from JP2016138184A external-priority patent/JP6298495B2/ja
Application filed by Calsonic Kansei Corp filed Critical Calsonic Kansei Corp
Priority to EP16844243.2A priority Critical patent/EP3348931B1/fr
Priority to US15/758,166 priority patent/US11933520B2/en
Priority to CN201680051600.8A priority patent/CN108027167B/zh
Publication of WO2017043382A1 publication Critical patent/WO2017043382A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders

Definitions

  • the present invention relates to a fluid heating apparatus that heats a fluid with a heater and a manufacturing method thereof.
  • JP2014-053288A discloses a fluid heating apparatus that heats a fluid supplied from a supply passage into a tank by a heater and discharges the heated fluid from a discharge passage.
  • a spiral heater is provided in the tank.
  • the fluid flowing through the tank is heated by directly contacting the surface of the heater.
  • the heater heats the fluid in direct contact with the surface. Therefore, if the output of the heater is increased, the fluid may be locally heated.
  • An object of the present invention is to provide a fluid heating apparatus capable of efficiently heating a fluid even when the output of a heater is increased, and a method for manufacturing the same.
  • the heater is a fluid heating device that heats a fluid
  • the heater is molded so as to cover the heater, and the heater is supported by a mold that molds the heating unit.
  • a fluid heating device including a support body that is formed with a heating part and is integrally cast in the heating part.
  • a method of manufacturing a fluid heating apparatus in which a heater heats a fluid, the installation step of installing a heater in a mold via a support, and filling the mold with molten metal.
  • a manufacturing method of a fluid heating device includes a molding step of casting a support body and integrally molding a heating portion that covers the periphery of the heater.
  • the structure in which the heater and the support are integrally cast in the heating unit prevents the fluid from directly contacting the surface of the heater.
  • a heat transfer area for exchanging heat with the fluid is sufficiently secured, and the fluid is suppressed from being locally heated. Therefore, the fluid can be efficiently heated even when the output of the heater is increased.
  • FIG. 1 is an exploded perspective view of a fluid heating apparatus according to an embodiment of the present invention.
  • FIG. 2 is a side view of the heater unit and the tank of the fluid heating device, and is a view showing the tank in cross section.
  • FIG. 3 is a front view of the heater unit and the tank of the fluid heating device, and is a view showing the tank in cross section.
  • FIG. 4A is a cross-sectional view showing a process for manufacturing the heater unit.
  • FIG. 4B is a cross-sectional view showing a process for manufacturing the heater unit.
  • FIG. 4C is a cross-sectional view showing a process for manufacturing the heater unit.
  • FIG. 5 is a front view of a heater unit and a tank according to a modification of the fluid heating apparatus, and is a view showing the tank in cross section.
  • the fluid heating device 100 is applied to a vehicle air conditioner (not shown) mounted on a vehicle such as an EV (Electric Vehicle: electric vehicle) or HEV (Hybrid Electric Vehicle: hybrid vehicle).
  • vehicle air conditioner mounted on a vehicle such as an EV (Electric Vehicle: electric vehicle) or HEV (Hybrid Electric Vehicle: hybrid vehicle).
  • the fluid heating device 100 heats hot water as a fluid in order for the vehicle air conditioner to perform a heating operation.
  • the fluid heating device 100 includes a tank 10 through which water flows, a heater unit 20 accommodated in the tank 10, a bus bar module 30 for connecting various electrical components, and a heater unit 20.
  • the control board 40 as a control part for controlling operation
  • the tank 10 is formed in a substantially rectangular parallelepiped shape.
  • the tank 10 has a rectangular bottom surface 13, four wall surfaces 14 erected from the bottom surface 13, and an opening 15 that opens at the end of the wall surface 14 so as to face the bottom surface 13.
  • the tank 10 has a supply port 11 through which hot water is supplied and a discharge port 12 through which hot water is discharged.
  • the supply port 11 and the discharge port 12 open side by side on the same wall surface 14 of the tank 10.
  • the fluid heating device 100 is disposed in the vehicle such that the discharge port 12 is positioned above the supply port 11 when in use.
  • the heater unit 20 includes a heater 21 that generates heat, and a heating unit 22 that is formed so as to cover the periphery of the heater 21.
  • a metal is die-cast around the heater 21 to form the heating unit 22.
  • the heating unit 22 is formed integrally with a top plate unit 23 that closes the opening 15 of the tank 10.
  • the heater 21 has a spiral heat generating part 21 c cast into the heating part 22 and a pair of terminals 21 a and 21 b protruding from the heating part 22. Note that the heater 21 may have a heat generating portion that is not spiral, but is formed so as to reciprocate within the heating portion 22, for example.
  • the heater 21 is supplied with electric power via a bus bar module 30 from a power supply device (not shown) mounted on the vehicle to the pair of terminals 21a and 21b.
  • the heater 21 is a sheathed heater or a PTC (Positive Temperature Coefficient) heater that generates heat when energized.
  • the heater 21 is preferably a sheathed heater in terms of cost.
  • the heater 21 generates heat in response to a command from the control board 40 and heats the hot water flowing through the tank 10.
  • the heating part 22 is formed in a small diameter compared with the inner periphery of the heat generating part 21c and has a through hole 25 penetrating along the central axis of the heat generating part 21c, and a large diameter compared with the outer periphery of the heat generating part 21c. 10 outer walls 26 facing the inner walls 17.
  • the heating unit 22 is formed of a metal having a lower melting point than that of the heater 21.
  • the heater 21 is formed of stainless steel
  • the heating unit 22 is formed of an aluminum alloy.
  • the through hole 25 is formed inside the heat generating portion 21c wound in a spiral shape.
  • the supply port 11 of the tank 10 opens on an extension line of the through hole 25.
  • the through-hole 25 forms an inner peripheral flow path 27 (see FIG. 3) through which hot water supplied from the supply port 11 flows.
  • the through-hole 25 has a plurality of inner peripheral fins 25a that protrude to the inner periphery along the flow direction of the hot water.
  • the inner peripheral fin 25a increases the heat transfer area in the inner peripheral flow path 27 as compared with the case where the inner peripheral fin 25a is not provided.
  • the plurality of inner peripheral fins 25 a are formed at equiangular intervals over the entire circumference of the through hole 25.
  • the outer wall portion 26 forms an outer peripheral flow path 28 through which hot water flows continuously with the inner peripheral flow path 27 between the inner wall 17 of the tank 10.
  • the outer peripheral channel 28 guides the hot water flowing from the inner peripheral channel 27 to the discharge port 12.
  • the outer wall portion 26 has a larger heat transfer area than the through hole 25. Further, the outer peripheral channel 28 has a larger channel area than the inner peripheral channel 27.
  • the outer wall portion 26 includes an outer wall main body 26a formed along the outer peripheral shape of the heater 21 and a plurality of outer peripheral fins 26b protruding from the outer wall main body 26a to the outer periphery along the flow direction of hot water.
  • the outer wall main body 26a is formed so as to cover the outer side of the heat generating portion 21c wound in a spiral shape. Since the outer wall main body 26a is provided, the heater 21 and the hot water are not in direct contact with each other.
  • the outer peripheral fin 26b increases the heat transfer area in the outer peripheral flow path 28 as compared with the case where the outer peripheral fin 26b is not provided.
  • the outer peripheral fins 26 b extend substantially parallel to the bottom surface 13 and the top surface 16 of the tank 10.
  • the outer peripheral fins 26 b are formed larger as they are closer to the top surface 16 as compared with the central portion of the tank 10 in the height direction.
  • the outer peripheral fins 26b are formed so as to face the pair of opposing wall surfaces 14 of the tank 10 with a predetermined interval.
  • a lower portion of the outer wall portion 26 is formed on the bottom surface 13 of the tank 10 so as to have a predetermined interval.
  • the heater unit 20 includes the heating unit 22 formed so as to cover the periphery of the heater 21.
  • the heating unit 22 includes a through hole 25 that has a smaller diameter than the inner periphery of the heat generating part 21c, and an outer wall part 26 that has a larger diameter than the outer periphery of the heat generating part 21c.
  • the surface area of the heating unit 22 is a heat transfer area for exchanging heat with hot water, so the total surface area of the through holes 25 and the outer wall part 26 is the heat transfer area. Therefore, compared with the case where the heater 21 and warm water are made to contact directly, the heat transfer area for heat exchange with warm water can be enlarged.
  • the top plate 23 is formed longer in the axial direction of the heater unit 20 than the opening 15 of the tank 10.
  • a connector (not shown) for connecting the fluid heating device 100 to a power supply device or a host controller (not shown) mounted on the vehicle is provided at a portion of the top plate portion 23 that protrudes from the tank 10.
  • the top plate 23 is welded to the outer peripheral edge of the opening 15 in a state where the heater unit 20 is inserted into the tank 10.
  • the top plate portion 23 forms the top surface 16 of the tank 10.
  • the top surface 16 faces the bottom surface 13 of the tank 10 substantially in parallel.
  • the fluid heating device 100 includes a bimetal switch 31 and a heater temperature sensor 32 as a temperature detector that detects the temperature of the heater 21, and detects the temperature of hot water flowing around the heating unit 22.
  • a water temperature sensor 33 As shown in FIG. 1, the fluid heating device 100 includes a bimetal switch 31 and a heater temperature sensor 32 as a temperature detector that detects the temperature of the heater 21, and detects the temperature of hot water flowing around the heating unit 22.
  • a water temperature sensor 33 A water temperature sensor 33.
  • a heat conduction member (support) 76 for attaching a bimetal switch 31 as a temperature switch, a heat conduction member (support) 77 for attaching a heater temperature sensor 32, and a water temperature sensor 33 are provided on the top plate portion 23. And a heat conducting member (tubular body) 78 for attachment.
  • the bimetal switch 31 detects the temperature of the heater unit 20 and switches according to the detected temperature. Specifically, the bimetal switch 31 cuts off the supply of power to the heater unit 20 when the temperature of the heater unit 20 rises above the first set temperature. When the temperature of the heater unit 20 falls below a second set temperature that is lower than the first set temperature, the bimetal switch 31 is switched again so that the supply of power to the heater unit 20 is resumed. Also good.
  • the heater temperature sensor 32 detects the temperature of the heater 21 in the heater unit 20.
  • the heater temperature sensor 32 sends an electrical signal corresponding to the detected temperature of the heater 21 to the control board 40.
  • the control board 40 stops the supply of power to the heater 21 when the temperature of the heater 21 detected by the heater temperature sensor 32 is higher than the set temperature.
  • the water temperature sensor 33 detects the temperature of warm water in the vicinity of the discharge port 12 of the tank 10. That is, the water temperature sensor 33 detects the temperature of the heated hot water discharged from the tank 10.
  • the water temperature sensor 33 is provided inside a protrusion 23 a (see FIGS. 2 and 3) that protrudes from the top plate 23 into the tank 10.
  • the water temperature sensor 33 sends an electrical signal corresponding to the detected temperature of the hot water to the control board 40.
  • the control board 40 controls the supply of electric power to the heater 21 so that the temperature of the hot water detected by the water temperature sensor 33 becomes a desired temperature.
  • IGBTs Insulated Gate Bipolar Transistors
  • the IGBTs 34 and 35 are connected to the vehicle power supply device via the bus bar module 30.
  • the IGBTs 34 and 35 are connected to the control board 40 and perform a switching operation in response to a command signal from the control board 40.
  • the IGBTs 34 and 35 control power supply to the heater unit 20 by a switching operation. Thereby, the heater unit 20 is adjusted to a desired temperature, and the hot water discharged from the discharge port 12 is adjusted to a desired temperature.
  • the IGBTs 34 and 35 generate heat by repeating the switching operation.
  • the maximum temperature at which the IGBTs 34 and 35 can operate is higher than the temperature of hot water flowing in the tank 10. Therefore, the IGBTs 34 and 35 are cooled by releasing heat to the hot water flowing in the tank 10 via the top plate part 23.
  • the bus bar module 30 is stacked on the top plate part 23.
  • the bus bar module 30 is formed in a small rectangle as compared with the top plate portion 23.
  • the bus bar module 30 has a conductive connection member formed of a metal plate capable of supplying electric power and electric signals.
  • Control board 40 is stacked on top of bus bar module 30.
  • the control board 40 is formed in a small rectangle as compared with the top plate part 23.
  • the control board 40 is electrically connected to the bus bar module 30 and the IGBTs 34 and 35.
  • the control board 40 controls the IGBTs 34 and 35 based on commands from the host controller.
  • the cover 50 is provided on the upper part of the control board 40.
  • the cover 50 is formed in the substantially same outer peripheral shape as the top plate portion 23.
  • the cover 50 is welded to the outer peripheral edge of the top plate portion 23.
  • the cover 50 seals the internal space between the top plate portion 23.
  • Hot water is supplied from the supply port 11 and guided to the inner circumferential flow path 27.
  • hot water is heated by heat exchange with the inner periphery of the through hole 25 in which the inner peripheral fin 25a is formed.
  • the warm water is rectified by the inner peripheral fins 25a formed along the flow direction of the warm water.
  • the hot water that has passed through the inner peripheral flow path 27 collides with the wall surface 14 facing the supply port 11 in the tank 10, changes its direction, and is guided to the outer peripheral flow path 28.
  • the hot water flowing through the outer peripheral flow path 28 is further heated by heat exchange with the outer wall main body 26a and the outer peripheral fin 26b. Also at this time, the warm water is rectified by the peripheral fins 26b formed along the flow direction of the warm water. Then, the heated warm water is discharged from the discharge port 12.
  • the outer peripheral channel 28 has a larger channel area than the inner peripheral channel 27. Therefore, the flow rate of hot water in the outer peripheral flow path 28 is slower than the flow rate of hot water in the inner peripheral flow path 27.
  • the outer wall portion 26 facing the outer peripheral flow path 28 has a larger heat transfer area than the through hole 25 forming the inner peripheral flow path 27. Therefore, the temperature rise rate of the hot water in the inner peripheral channel 27 and the outer peripheral channel 28 can be made substantially constant.
  • the fluid heating device 100 is not limited to the configuration described above, and the hot water supplied from the supply port 11 may flow through the outer peripheral flow channel 28 and then flow through the inner peripheral flow channel 27 and be discharged from the discharge port 12. Good.
  • the heater 21 is installed inside the mold 60.
  • the mold 60 has a molding surface 60a for die-casting (casting) the outer shapes of the heating unit 22 and the top plate unit 23.
  • the mold 60 is combined with another mold (not shown) and the slide mold 62 to form a sealed space.
  • the mold 60 is provided with pins 63 to 68 as a plurality of jigs that protrude from the molding surface 60 a and support the heater 21.
  • the pin 68 is formed in a cylindrical shape that fits in the support hole 60c of the mold 60 so as to be able to advance and retreat.
  • the tip portion 68 a of the pin 68 is formed in a tapered shape that protrudes from the molding surface 60 a toward the heater 21.
  • a bottomed cylindrical heat conducting member 78 is fitted and attached to the tip 68 a of the pin 68.
  • the bottomed cylindrical support 71 and the heat conducting members 76 and 77 are fitted and attached to the tips of the pins 63 to 67 with respect to the mold 60.
  • the heat conducting members 76 and 77 function as a support that supports the heater 21 with respect to the mold 60 via the pins 66 and 67.
  • the pins 66 to 68 protrude downward from the molding surface 60a.
  • Each pin 63 to 65 protrudes upward from the molding surface 60a.
  • a plurality (three) of support bodies 71 are in contact with the lower portion of the spiral heat generating portion 21c.
  • a plurality (three) of heat conducting members 76 to 78 are in contact with the upper portion of the heat generating portion 21c.
  • One terminal 21 b is inserted into the hole 60 b of the mold 60.
  • the other terminal 21a is inserted into a hole (not shown) of the mold 60.
  • the heater 21 is installed at a predetermined position inside the mold 60.
  • the surfaces of the support 71 and the heat conducting members 76 to 78 that are in contact with the heating unit 22 are made of the same metal as the heating unit 22, and more preferably are formed of a metal having a higher melting point than the heating unit 22.
  • the support 71 and the heat conducting members 76 to 78 are made of the same metal as the heating unit 22, and more preferably are formed of an aluminum alloy having a melting point higher than that of the heating unit 22.
  • the slide mold 62 is inserted into the mold 60 inside the heat generating portion 21c.
  • the slide mold 62 has a molding surface 62 a for molding the through hole 25 (inner peripheral fin 25 a) of the heating unit 22.
  • the molten metal 29 is filled into the mold 60 from a filling port (not shown) of the mold 60. Inside the mold 60, the heating part 22 and the top plate part 23 are formed by the molten metal 29 being cooled and solidified.
  • the outer surface of the heater 21 and the surface of the support 71 and the heat conducting members 76 to 78 that are in contact with the heating unit 22 are formed of a metal having a melting point higher than that of the heating unit 22.
  • the support 71 and the heat conductive members 76 to 78 are prevented from being melted by the heat received from the molten metal forming the heating unit 22.
  • the heater unit 20 is taken out from the mold 60.
  • the support 71 and the heat conducting members 76 to 78 are cast into the heating unit 22, and the terminals 21 a and 21 b protrude from the heating unit 22.
  • the support 71 has holes 71a from which the pins 63 to 65 are respectively extracted.
  • holes 76a, 77a and 78a from which pins 66 to 68 are extracted are opened in the heat conducting members 76 to 78, respectively.
  • the open end of the tank 10 is welded to the top plate portion 23 of the heater unit 20 (see FIGS. 2 and 3).
  • the bimetal switch 31, the heater temperature sensor 32, and the water temperature sensor 33 are interposed in the heat conducting members 76 to 78 of the heater unit 20, respectively.
  • the bimetal switch 31, the heater temperature sensor 32, and the water temperature sensor 33 are interposed such that their outer surfaces are in contact (surface contact) with the inner surfaces of the holes 76 a, 77 a, 78 a of the heat conducting members 76 to 78. .
  • bus bar module 30, the control board 40, and the cover 50 are assembled on the heater unit 20.
  • the heating unit 22 is molded so as to cover the heater 21, and the heating unit 22 is molded in a state where the heater 21 is supported on the mold 60 that molds the heating unit 22. It was set as the structure provided with the heat support members 76 and 77 which function as a support body 71 and a support body cast integrally.
  • the manufacturing method of the fluid heating apparatus 100 includes an installation process in which the heater 21 is installed in the mold 60 via the support 71 and the heat conducting members 76 and 77, and the mold 60 is filled with molten metal to form the heater 21.
  • a heating step 22 covering the periphery of the heating portion 22 is formed by casting the support 71 and the heat conducting members 76 and 77 to form them integrally.
  • the heater 21, the support 71, and the heat conducting members 76 and 77 are cast into the heating unit 22, so that the hot water does not directly contact the surface of the heater 21.
  • the heat transfer area which heat-exchanges with warm water is fully ensured, and it is suppressed that warm water is heated locally.
  • the fluid heating device 100 is configured such that warm water flows around the heating unit 22 and the support 71.
  • the hot water circulates around the heating unit 22 and the support 71, so that a heat transfer surface that exchanges heat with the hot water is sufficiently secured, and the hot water is prevented from being locally heated. .
  • the support 71 is provided so as to contact the bottom surface 13 of the tank 10, and the hot water does not flow around the support 71. Also good.
  • the heating unit 22 and the bottom of the tank 10 are connected to each other via the support 71. Then, by forming the support 71 with a material having lower thermal conductivity than the heating unit 22 or the tank 10, it is possible to suppress the heat of the heater 21 from being transmitted to the outside air via the support 71 and the tank 10.
  • the hot water is prevented from boiling when the output of the heater 21 is increased, and the heater 21 heats the hot water. Heat exchange efficiency is increased.
  • the heating unit 22 is configured to be formed of a metal (for example, stainless steel) different from a metal (for example, an aluminum alloy) that forms the outer surface of the heater 21.
  • the outer surface of the heater 21 is prevented from melting in the process of casting the heater 21 into the heating unit 22.
  • the surface which contacts at least the heating part 22 of the support 71 and the heat conducting members 76 and 77 is configured to be formed of a metal similar to the heating part 22.
  • the support 71 and the heat conduction members 76 and 77 are not limited to the above-described configuration, and may be formed of a metal different from the heating unit 22.
  • the support 71 and the heat conducting members 76 and 77 can be formed of a copper-based metal having a high heat transfer coefficient. Also in this case, since the support body 71 is interposed between the hot water and the heater 21, it is avoided that the hot water is in direct contact with the heater 21, and the hot water can be prevented from boiling. And compared with the case where the support body 71 is formed with an aluminum-based metal, the heat exchange efficiency by which the heater 21 heats the hot water through the support body 71 having a high thermal conductivity is enhanced.
  • the surfaces of the support 71 and the heat conducting members 76 and 77 may be formed of an aluminum metal, and the main body portion other than the surface may be formed of a copper metal having a high heat transfer coefficient.
  • the surfaces of the support 71 and the heat conducting members 76 and 77 and the heating unit 22 are melted by similar metals. And combine. And the heat exchange efficiency in which the heater 21 heats warm water through the support body 71 mainly composed of copper-based metal having high thermal conductivity is enhanced.
  • the fluid heating apparatus 100 includes a heating unit 22 formed so as to cover the periphery of the heater 21, heat conduction members 76 to 78 that are integrally cast into the heating unit 22 when the heating unit 22 is formed, and heat conduction.
  • the manufacturing method of the fluid heating apparatus 100 includes an installation process in which the heater 21 and the heat conducting members 76 to 78 are installed in the mold 60, and a heating unit that fills the mold 60 with molten metal and covers the periphery of the heater 21. 22 is formed by integrally molding the heat conducting members 76 to 78, the bimetallic switch 31 for detecting the temperature of the heater 21 in the heat conducting members 76 to 78 cast in the heating unit 22, and the heater temperature sensor 32. And an assembly step for assembling the water temperature sensor 33 (temperature detector) in contact with each other.
  • warm water circulates around the heating unit 22 because of the structure in which the heater 21 is cast into the heating unit 22. Therefore, since the warm water does not directly contact the surface of the heater 21, compared with the case where the heater 21 and the warm water are directly contacted, a heat transfer area for exchanging heat with the warm water is sufficiently secured, and the warm water is Local heating is suppressed.
  • the heat of the heater 21 is conducted to the bimetal switch 31, the heater temperature sensor 32, and the water temperature sensor 33 through the heat conduction members 76 to 78 cast into the heating unit 22.
  • the heat conducting members 76 to 78 are configured to have the inner surfaces of the holes 76a, 77a, and 78a as contact portions that are in surface contact with the bimetal switch 31, the heater temperature sensor 32, and the water temperature sensor 33.
  • the heat conducting members 76 to 78 are formed separately from the heating part 22, the inner surface of the holes 76a, 77a, 78a has a smaller surface roughness than the outer surface of the heating part 22 to be cast, The gap interposed in the heat transfer path through which the heat of the heater 21 is transmitted can be reduced. Thereby, the bimetal switch 31, the heater temperature sensor 32, and the water temperature sensor 33 have a sufficient heat transfer area (cross-sectional area of the heat transfer path) through which the heat of the heater 21 is transmitted.
  • the surface roughness of the heating unit 22 to be cast is large.
  • a heat transfer area (cross-sectional area of the heat transfer path) through which heat is transferred cannot be secured sufficiently.
  • the bimetal switch 31, the heater temperature sensor 32, and the water temperature sensor 33 can improve the accuracy of detecting the temperature of the heater 21.
  • the fluid heating device 100 is configured such that the heat conducting members 76 to 78 cast into the heating unit 22 abut on the heater 21.
  • the heater 21 is supported at a predetermined position in the mold 60 by the heat conducting member 76. Thereby, the assembly
  • the surfaces of the support 71 and the heat conducting members 76 to 78 that are in contact with at least the heating unit 22 are formed of a metal similar to the heating unit 22.
  • the bimetal switch 31, the heater temperature sensor 32, and the water temperature sensor 33 control the temperature of the heater 21. The accuracy of detection can be increased.
  • the support body 71 and the heat conducting members 76 to 78 are not limited to the structure described above, and may be formed of a metal different from the heating unit 22.
  • the support 71 and the heat conducting members 76 to 78 can be formed of a copper-based metal having a high heat transfer coefficient. Also in this case, since the support body 71 is interposed between the heater 21 and the hot water, it is avoided that the hot water is in direct contact with the heater 21, and the hot water can be prevented from boiling. Since the heat conductivity of the support 71 is increased compared to the case where the support 71 and the heat conducting members 76 to 78 are made of an aluminum-based metal, the heat exchange efficiency when the heater 21 heats hot water is increased. It is done.
  • the heat conductivity of the heat conducting members 76 to 78 is increased, the accuracy with which the bimetal switch 31, the heater temperature sensor 32, and the water temperature sensor 33 detect the temperature of the heater 21 can be increased. And the heat exchange efficiency at the time of the heater 21 heating warm water is improved.
  • the surfaces of the support 71 and the heat conducting members 76 to 78 may be formed of an aluminum metal, and the main body portion other than the surface may be formed of a copper metal having a high heat transfer coefficient.
  • the support 71 and the heat conducting members 76 to 78 are cast into the heating part 22, the surfaces of the support 71 and the heat conducting members 76 to 78 and the heating part 22 are melted by the same metal. And combine.
  • the heat exchange efficiency at the time of the heater 21 heating warm water through the support body 71 which mainly has a copper-type metal with high heat conductivity is improved.
  • the accuracy with which the bimetal switch 31, the heater temperature sensor 32, and the water temperature sensor 33 detect the temperature of the heater 21 can be further enhanced through the heat conducting members 76 to 78 mainly composed of copper metal having high heat conductivity. .
  • the heat conducting members 76 to 78 can be cast at an arbitrary position with respect to the heating unit 22.
  • the support 71 is configured to be supported by the tip portions of the pins 63 to 68 that advance and retreat with respect to the mold 60.
  • heat conducting members 76 to 78 are supported by the tip portions of the pins 63 to 68 that advance and retreat with respect to the mold 60.
  • the support 71 and the heat conducting members 76 to 78 can be cast at an arbitrary position with respect to the heating unit 22.
  • the heat conducting member 76 is provided between the heater 21 and the bimetal switch 31. The heat of the heater 21 is transmitted to the bimetal switch 31 through the bottom of the heat conducting member 76.
  • the heat conducting member 77 is provided between the heater 21 and the heater temperature sensor 32. Heat of the heater 21 is transmitted to the heater temperature sensor 32 via the bottom of the heat conducting member 77.
  • the heat conducting member 78 is surrounded by the heating unit 22.
  • the heat of hot water flowing through the outer peripheral flow path 28 is transmitted to the water temperature sensor 33 through the heating unit 22 and the bottom of the heat conducting member 78.
  • the bottom of the heat conducting member 78 is not limited to this, and may be exposed to the hot water flowing through the outer peripheral flow path 28 exposed from the heating unit 22 into the tank 10. In this case, the heat of the hot water flowing through the outer peripheral flow path 28 is transmitted to the water temperature sensor 33 via the heat conducting member 78.
  • the heat conducting members 76 to 78 cast into the heating unit 22 abut on the heater 21.
  • the heat conducting members 76 to 78 cast into the heating unit 22 may be separated from the heater 21, and the portion of the heating unit 22 may be interposed between the heat conducting members 76 to 78 and the heater 21.
  • the heat of the heater 21 is conducted to the bimetal switch 31, the heater temperature sensor 32, and the water temperature sensor 33 through the heating unit 22 and the heat conducting members 76 to 78, respectively.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

Selon l'invention, un dispositif de chauffage de fluide (100), dans lequel un élément chauffant (21) chauffe un fluide, comprend une unité de chauffage (22) formée de manière à recouvrir la périphérie de l'élément chauffant (21), et un corps de support (71) coulé d'un seul tenant avec l'unité de chauffage (22) par formation de l'unité de chauffage (22) pendant que l'élément chauffant (21) est supporté dans un moule (60) pour former l'unité de chauffage (22).
PCT/JP2016/075427 2015-09-09 2016-08-31 Dispositif de chauffage de fluide et son procédé de fabrication Ceased WO2017043382A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP16844243.2A EP3348931B1 (fr) 2015-09-09 2016-08-31 Dispositif de chauffage de fluide et son procédé de fabrication
US15/758,166 US11933520B2 (en) 2015-09-09 2016-08-31 Fluid-heating device and manufacturing method thereof
CN201680051600.8A CN108027167B (zh) 2015-09-09 2016-08-31 流体加热装置及其制造方法

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2015177703 2015-09-09
JP2015177706A JP6431831B2 (ja) 2015-09-09 2015-09-09 流体加熱装置及びその製造方法
JP2015-177703 2015-09-09
JP2015-177706 2015-09-09
JP2016138184A JP6298495B2 (ja) 2015-09-09 2016-07-13 流体加熱装置及びその製造方法
JP2016-138184 2016-07-13

Publications (1)

Publication Number Publication Date
WO2017043382A1 true WO2017043382A1 (fr) 2017-03-16

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3494805A1 (fr) 2017-12-08 2019-06-12 Jennewein Biotechnologie GmbH Tétrasaccharide séché en pulvérisation
EP3494804A1 (fr) 2017-12-08 2019-06-12 Jennewein Biotechnologie GmbH 3-fucosyllactose séché en pulvérisation
EP3494806A1 (fr) 2017-12-08 2019-06-12 Jennewein Biotechnologie GmbH Lacto-n-fucopentaose séché par pulvérisation
EP3494807A1 (fr) 2017-12-11 2019-06-12 Jennewein Biotechnologie GmbH Sialyllactose séché par pulvérisation
WO2019110803A1 (fr) 2017-12-08 2019-06-13 Jennewein Biotechnologie Gmbh Sialyllactose séché par atomisation
EP3524067A1 (fr) 2018-02-08 2019-08-14 Jennewein Biotechnologie GmbH Mélange séchant par pulvérisation d'oligosaccharides de lait humain
WO2024046993A1 (fr) 2022-08-29 2024-03-07 Chr. Hansen A/S Procédé de production d'un oligosaccharide de lait humain purifié dérivé d'un procédé de fermentation microbienne

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JPH0566892U (ja) * 1992-02-14 1993-09-03 株式会社ヨシオカ 鋳込みヒーター
JPH11151931A (ja) * 1997-11-19 1999-06-08 Matsushita Electric Ind Co Ltd 加熱循環装置
JP2013180690A (ja) * 2012-03-02 2013-09-12 Mitsubishi Heavy Ind Ltd 熱媒体加熱装置およびそれを備えた車両用空調装置
JP2013235759A (ja) * 2012-05-10 2013-11-21 Sanden Corp 加熱装置

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Publication number Priority date Publication date Assignee Title
JPH0566892U (ja) * 1992-02-14 1993-09-03 株式会社ヨシオカ 鋳込みヒーター
JPH11151931A (ja) * 1997-11-19 1999-06-08 Matsushita Electric Ind Co Ltd 加熱循環装置
JP2013180690A (ja) * 2012-03-02 2013-09-12 Mitsubishi Heavy Ind Ltd 熱媒体加熱装置およびそれを備えた車両用空調装置
JP2013235759A (ja) * 2012-05-10 2013-11-21 Sanden Corp 加熱装置

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See also references of EP3348931A4 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3494805A1 (fr) 2017-12-08 2019-06-12 Jennewein Biotechnologie GmbH Tétrasaccharide séché en pulvérisation
EP3494804A1 (fr) 2017-12-08 2019-06-12 Jennewein Biotechnologie GmbH 3-fucosyllactose séché en pulvérisation
EP3494806A1 (fr) 2017-12-08 2019-06-12 Jennewein Biotechnologie GmbH Lacto-n-fucopentaose séché par pulvérisation
WO2019110803A1 (fr) 2017-12-08 2019-06-13 Jennewein Biotechnologie Gmbh Sialyllactose séché par atomisation
WO2019110801A1 (fr) 2017-12-08 2019-06-13 Jennewein Biotechnologie Gmbh 3-fucosyllactose séché par atomisation
WO2019110806A1 (fr) 2017-12-08 2019-06-13 Jennewein Biotechnologie Gmbh Lacto-n-fucopentaose séché par pulvérisation
WO2019110804A1 (fr) 2017-12-08 2019-06-13 Jennewein Biotechnologie Gmbh Tétrasaccharides séchés par atomisation
WO2019110800A1 (fr) 2017-12-08 2019-06-13 Jennewein Biotechnologie Gmbh Mélange séché par atomisation à base d'oligosaccharides du lait maternel
US11582994B2 (en) 2017-12-08 2023-02-21 Chr. Hansen HMO GmbH Spray-dried 3-fucosyllactose
EP3494807A1 (fr) 2017-12-11 2019-06-12 Jennewein Biotechnologie GmbH Sialyllactose séché par pulvérisation
EP3524067A1 (fr) 2018-02-08 2019-08-14 Jennewein Biotechnologie GmbH Mélange séchant par pulvérisation d'oligosaccharides de lait humain
WO2024046993A1 (fr) 2022-08-29 2024-03-07 Chr. Hansen A/S Procédé de production d'un oligosaccharide de lait humain purifié dérivé d'un procédé de fermentation microbienne

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