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WO2017208687A1 - Dispositif de chauffage de fluide - Google Patents

Dispositif de chauffage de fluide Download PDF

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Publication number
WO2017208687A1
WO2017208687A1 PCT/JP2017/016487 JP2017016487W WO2017208687A1 WO 2017208687 A1 WO2017208687 A1 WO 2017208687A1 JP 2017016487 W JP2017016487 W JP 2017016487W WO 2017208687 A1 WO2017208687 A1 WO 2017208687A1
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WO
WIPO (PCT)
Prior art keywords
heater
heating device
fluid
fluid heating
top plate
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/JP2017/016487
Other languages
English (en)
Japanese (ja)
Inventor
神山　直久
山谷　栄次
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
Application filed by Calsonic Kansei Corp filed Critical Calsonic Kansei Corp
Publication of WO2017208687A1 publication Critical patent/WO2017208687A1/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
    • F24H1/18—Water-storage heaters
    • F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • 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
    • F24H9/00—Details
    • F24H9/02—Casings; Cover lids; Ornamental panels

Definitions

  • the present invention relates to a fluid heating apparatus that heats a fluid with a heater.
  • JP2014-053288A discloses a fluid heating device that heats a fluid with an electric heater.
  • a spiral heater is provided in the tank, and the end of the heater is supported by the upper wall of the tank.
  • the heater generates heat when energized and heats the fluid flowing through the tank.
  • electrical components such as a temperature sensor and a switching element for controlling energization of the heater may be provided on the upper wall portion of the tank.
  • electrical components such as a temperature sensor and a switching element for controlling energization of the heater may be provided on the upper wall portion of the tank.
  • the temperature of electrical components and the like provided on the upper wall portion of the tank may increase excessively.
  • An object of the present invention is to provide a fluid heating device that prevents the temperature of an electrical component or the like from rising excessively and operates the electrical component stably.
  • a fluid heating apparatus that heats a fluid has a heater that generates heat when energized, an opening, a tank that houses the heater, and the fluid that flows by closing the opening of the tank.
  • a lid portion that forms a fluid chamber, and the lid portion includes a heater installation portion where the heater is installed, an electrical component installation portion where an electrical component related to energization of the heater is installed, and the lid portion A thin portion that reduces the thickness between the heater installation portion and the electrical component installation portion.
  • the heat of the heater is transmitted to the fluid flowing through the fluid chamber, and is also transmitted to the heater installation portion of the lid.
  • the heat transfer area is partially reduced by extending the thin portion around the heater installation portion, so that the heat of the heater installation portion is suppressed from being transmitted to the electrical component installation portion.
  • FIG. 1 is an exploded perspective view of a fluid heating apparatus according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the lid and tank of the fluid heating device.
  • FIG. 3 is a front view of the lid and the tank of the fluid heating device, and is a view showing the tank in cross section.
  • FIG. 4 is a bottom view of the lid.
  • FIG. 5 is a perspective view of a lid of a fluid heating apparatus according to a modification of the embodiment of the present invention.
  • FIG. 6 is a front view of the lid and the tank of the fluid heating device, and is a view showing the tank in cross section.
  • FIG. 7 is a bottom view of the lid.
  • FIG. 8 is a cross-sectional view of a lid and a tank of a fluid heating apparatus according to another modification of the embodiment of the present invention.
  • 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 (medium) in order for the vehicle air conditioner to perform a heating operation.
  • the fluid heating device 100 includes a heater 21 (see FIG. 2) that generates heat when energized, a lid 20 to which the heater 21 is attached, and a fluid chamber 9 in which fluid flows between the lid 20. And a cover 50 that forms an electrical component chamber 8 in which electrical components 40 to 46 that energize the heater 21 are accommodated between the tank 10 and the lid 20.
  • the tank 10 includes a flow passage wall surface 14 that forms the fluid chamber 9, an opening 15 that opens upward and is assembled with a lid 20, a supply port 11 to which hot water is supplied, and a discharge port 12 from which hot water is discharged. And having.
  • the lid 20 includes a cylindrical heating unit 22 formed so as to surround the spiral heater 21 and a plate-shaped top plate that closes the opening 15 of the tank 10. And a support portion 24 that supports the heater 21 (heating portion 22) on the top plate portion 30.
  • the lid portion 20 is formed by integrally forming the heating portion 22 and the top plate portion 30 via the support portion 24.
  • the heating part 22 and the top-plate part 30 may be shape
  • the lid 20 is assembled to the tank 10 so that the top plate 30 closes the opening 15. Thereby, the heating part 22 and the support part 24 are accommodated in the fluid chamber 9.
  • the top plate 30 faces the outer peripheral step 18 joined to the opening 15 of the tank 10, the fluid chamber wall 16 (lower surface) that faces the tank 10 and forms the fluid chamber 9, and the cover 50. And an electrical component chamber wall surface 17 forming the electrical component chamber 8.
  • the electrical compartment 8 accommodates electrical components including a bus bar module 40, a bimetal switch 41, a heater temperature sensor 42, a water temperature sensor 43, and IGBTs 44 and 45, and a control board 46.
  • the control board 46 is provided as a control unit to which the electrical components 40 to 45 are connected and controls the energization of the heater 21.
  • a recess 23 a for attaching the bimetal switch 41, a recess 23 b for attaching the heater temperature sensor 42, and a recess 23 c for attaching the water temperature sensor 43 are opened in the electrical chamber wall surface 17.
  • the bimetal switch 41 detects the temperature of the lid 20 and switches on and off the heater 21 in accordance with the detected temperature. Specifically, the bimetal switch 41 cuts off the supply of power to the heater 21 when the temperature of the lid 20 rises above the first set temperature. Note that the bimetal switch 41 may resume the supply of power to the heater 21 when the temperature of the lid 20 falls below a second set temperature that is lower than the first set temperature. .
  • the heater temperature sensor 42 detects the temperature of the heater 21 through the lid 20.
  • the heater temperature sensor 42 sends an electrical signal corresponding to the detected temperature of the heater 21 to the control board 46.
  • the control board 46 stops the supply of power to the heater 21 when the temperature of the heater 21 detected by the heater temperature sensor 42 is higher than the set temperature.
  • the water temperature sensor 43 detects the temperature of the hot water in the vicinity of the discharge port 12 of the tank 10 through the lid part 20. That is, the water temperature sensor 43 detects the temperature of the heated hot water discharged from the tank 10.
  • the water temperature sensor 43 is provided inside a protrusion 23 d (see FIGS. 2 and 3) that protrudes from the top plate 30 to the fluid chamber 9.
  • the water temperature sensor 43 sends an electric signal corresponding to the detected temperature of the hot water to the control board 46.
  • the control board 46 controls the supply of electric power to the heater 21 so that the temperature of the hot water detected by the water temperature sensor 43 becomes a desired temperature.
  • a pair of IGBTs (Insulated Gate Bipolar Transistors) 44 and 45 are connected to a vehicle power supply device via a bus bar module 40.
  • the IGBTs 44 and 45 are connected to the control board 46 and perform a switching operation in response to a command signal from the control board 46.
  • the IGBTs 44 and 45 control power supply to the heater 21 by a switching operation. Thereby, the warm water discharged
  • the IGBTs 44 and 45 are provided in contact with the electrical equipment wall surface 17.
  • the IGBTs 44 and 45 generate heat by repeating the switching operation.
  • the IGBTs 44 and 45 are cooled by dissipating heat to the hot water flowing through the fluid chamber 9 via the top plate part 30.
  • the maximum temperature at which the IGBTs 44 and 45 can operate is higher than the temperature of hot water flowing in the tank 10.
  • the bus bar module 40 is laminated on the top plate 30.
  • the bus bar module 40 is a conductive connection member formed of a metal plate capable of supplying electric power and electric signals.
  • the control board 46 is laminated on the upper part of the bus bar module 40.
  • the control board 46 is electrically connected to the bus bar module 40 and the IGBTs 44 and 45.
  • the control board 46 controls the IGBTs 44 and 45 based on commands from the host controller.
  • the cover 50 is attached to the top plate portion 30 via a resin packing (not shown), and seals the electrical equipment chamber 8 formed between the top plate portion 30 and the cover 50.
  • the electric heater 21 is a sheathed heater in which a nichrome wire is wrapped with a metal pipe.
  • the heater 21 is not limited to this, and may be a PTC (Positive Temperature Coefficient) heater or another heater.
  • the sheathed heater is less costly than the PTC heater.
  • the heater 21 includes a pair of terminals 21a and 21b and a heat generating portion 21c that generates heat when energized through the terminals 21a and 21b.
  • Terminals 21a and 21b project from the electrical equipment room wall surface 17 to the electrical equipment room 8 to which the bus bar module 40 is connected. Electric power is supplied to the terminals 21a and 21b via a bus bar module 40 from a power supply device (not shown) mounted on the vehicle.
  • the heat generating part 21c is spirally wound around the axis O. Note that the heat generating portion 21c is not spiral, and may be shaped to reciprocate within the heating portion 22, for example.
  • the heater 21 is cast into the heating unit 22.
  • the heating unit 22 is formed of a metal having a lower melting point than that of the heater 21.
  • the metal pipe of the heater 21 is made of stainless steel, and the heating part 22 is made of an aluminum alloy.
  • the heating part 22 is formed in a cylindrical shape covering the outside of the heat generating part 21c wound in a spiral. Thereby, the heater 21 and warm water do not contact directly.
  • the heating unit 22 includes a through hole 25 penetrating the inside of the heat generating unit 21 c of the heater 21 and an outer wall unit 36 facing the flow path wall surface 14 of the tank 10.
  • the outer wall portion 36 forms a fluid chamber 9 between the outer wall portion 36 and the flow path wall surface 14 of the tank 10.
  • the supply port 11 of the tank 10 opens on the extension of the through hole 25.
  • the supply port 11 and the through hole 25 are formed around the axis O. Hot water supplied from the supply port 11 circulates in the through hole 25.
  • the fluid heating device 100 may include an inlet pipe (not shown) that is inserted into the through hole 25 from the supply port 11 of the tank 10.
  • the discharge port 12 of the tank 10 is located above the supply port 11 and opens side by side with the supply port 11. The hot water flowing through the fluid chamber 9 is discharged through the discharge port 12.
  • the channel wall surface 14 of the tank 10 has a guide portion 14 a that faces the supply port 11 through the through hole 25.
  • the guide part 14 a is inclined with respect to the axis O so as to be away from the end face where the through hole 25 of the heating part 22 is opened, and faces the fluid chamber wall surface 16 of the top plate part 30.
  • the hot water flowing out from the through hole 25 hits the guide portion 14 a and flows back toward the fluid chamber wall surface 16.
  • the outer wall portion 36 has an outer peripheral surface 36a formed along the outer peripheral shape of the heater 21 and a plurality of outer peripheral fins 37 protruding from the outer peripheral surface 36a along the hot water flow direction.
  • the outer peripheral fin 37 enlarges the heat transfer area of the heating unit 22 in the fluid chamber 9 as compared with the case where the outer peripheral fin 37 is not provided.
  • the outer peripheral fin 37 extends linearly along the axis O.
  • the outer peripheral fin 37 opposes the flow path wall surface 14 of the tank 10 and the fluid chamber wall surface 16 of the top plate portion 30 with a predetermined interval.
  • the through hole 25 includes an inner peripheral surface 25a having a circular cross section centered on the axis O, and a plurality of inner peripheral fins 26 protruding from the inner peripheral surface 25a along the flow direction of the hot water.
  • the inner peripheral fin 26 increases the heat transfer area of the heating unit 22 in the through hole 25 as compared with the case where the inner peripheral fin 26 is not provided.
  • the support portion 24 includes a center support portion 24c that supports the heating portion 22 on the top plate portion 30, and terminal support portions 24a and 24b that support the terminals 21a and 21b of the heater 21 on the top plate portion 30, respectively.
  • FIG. 4 is a bottom view of the lid 20 as viewed from below.
  • the top panel 30 includes a heater installation part 30a in which the heater 21 is installed, electrical component installation parts 30b and 30c in which electrical parts 43 to 45 for controlling energization of the heater 21 are installed, and the thickness of the top panel 30.
  • the heater installation part 30a is provided in the center part of the top board part 30 in which the heater 21 is installed.
  • the heater installation portion 30a is connected to the central support portion 24c and the terminal support portions 24a and 24b that support the heater 21.
  • the heater installation part 30a is a part to which the terminals 21a and 21b of the heater 21 are attached.
  • the heater 21 is not limited to the structure cast into the heating unit 22 as described above, and the heating unit 21c wound spirally protrudes from the heater installation unit 30a and directly contacts the hot water flowing through the fluid chamber 9. It is good.
  • the heater installation part 30a has a hole through which the terminals 21a and 21b of the heater 21 pass.
  • the electrical component installation part 30b is a part where the IGBTs 44 and 45 are installed.
  • the IGBTs 44 and 45 are placed in contact with the electrical equipment chamber wall surface 17 of the electrical equipment installation part 30b.
  • the fluid chamber wall surface 16 of the electrical component installation part 30 b faces the guide part 14 a of the tank 10.
  • the electrical component installation unit 30c is a part where the water temperature sensor 43 is installed.
  • the water temperature sensor 43 is provided inside a protruding portion 23d that protrudes from the electrical component installation portion 30c into the fluid chamber 9.
  • a thin portion 30 d is formed by the groove 31, and a thin portion 30 e is formed by the groove 32.
  • the grooves 31 and 32 are recessed in the fluid chamber wall surface 16 of the top plate 30 and are formed to extend along the width direction of the top plate 30.
  • the “longitudinal direction” of the top plate portion 30 means a direction (substantially parallel to the axis O) in which the heater installation portion 30a and the electrical component installation portions 30b and 30c are arranged in the top plate portion 30.
  • the “width direction” of the top plate portion 30 means a direction (substantially orthogonal to the axis O) that crosses between the heater installation portion 30a and the electrical component installation portions 30b and 30c.
  • the cross-sectional areas of the thin portions 30d and 30e are reduced by the grooves 31 and 32, respectively.
  • the thickness T1 of the thin part 30d and the thickness T2 of the thin part 30e are formed smaller than the thickness T3 of the heater installation part 30a and the electrical component installation parts 30b and 30c.
  • the thicknesses T1, T2, and T3 are dimensions in the thickness direction orthogonal to the surface direction in which the electrical equipment chamber wall surface 17 and the fluid chamber wall surface 16 of the plate-like top plate portion 30 extend.
  • the groove 31 extends in an arc shape across the top plate portion 30 in the vicinity of the terminal support portion 24 b of the support portion 24.
  • the thin-walled portion 30d formed by the groove 31 is configured to partially reduce the cross-sectional area of the top plate portion 30 so as to surround the heater installation portion 30a, and to prevent the heat of the heater installation portion 30a from being transmitted to the electrical component installation portion 30b.
  • the top plate part 30 is divided into a heater installation part 30a in which the support part 24 is provided and an electrical component installation part 30b in which the IGBTs 44 and 45 are provided, by the thin part 30d.
  • the top plate portion 30 is formed with a pair of ribs 33 protruding from the fluid chamber wall surface 16.
  • the pair of ribs 33 extend parallel to each other with the thin portion 30d interposed therebetween, and extend so as to intersect the extension line of the thin portion 30d.
  • the pair of ribs 33 and the thin portion 30 d are disposed symmetrically about the axis O.
  • the thin wall portion 30e and the groove 32 extend in an arc shape across the top plate portion 30 in the vicinity of the protruding portion 23d where the water temperature sensor 43 is provided.
  • the thin-walled portion 30e partially reduces the cross-sectional area of the top plate portion 30 between the heater installation portion 30a and the electrical component installation portion 30c, and suppresses heat from the heater installation portion 30a from being transmitted to the electrical component installation portion 30c.
  • the top plate part 30 is divided into a heater installation part 30a in which the support part 24 is provided and an electrical component installation part 30c in which the water temperature sensor 43 is provided by the thin part 30e.
  • hot water circulates as follows.
  • the hot water sent by a pump (not shown) is supplied from the supply port 11 to the fluid chamber 9 in the tank 10 through a pipe (not shown) as shown by an arrow A in FIG. Flows in.
  • the hot water flows through the through hole 25 in the right direction in FIG. 2 and is heated by heat exchange with the inner peripheral fin 26.
  • the hot water hits the guide portion 14a of the channel wall surface 14 and changes its direction.
  • the IGBTs 44 and 45 are urged to radiate heat to the hot water flow via the electrical component installation portion 30 b of the top plate portion 30.
  • the hot water flows in the fluid chamber 9 in the left direction in FIG. 2 and is heated by heat exchange with the outer peripheral fin 37.
  • the hot water is discharged from the tank 10 through the discharge port 12 as indicated by an arrow E.
  • the hot water is sent to a heater core (not shown) through a pipe (not shown) and warms the air for air conditioning through the heater core.
  • the hot water that has passed through the heater core is sucked into the pump through a pipe (not shown) and circulated.
  • heat generated in the heater 21 is transmitted to the top plate part 30 via the terminals 21 a and 21 b and the support part 24.
  • the heat of the top plate 30 is radiated from the fluid chamber wall surface 16 to the hot water flowing through the fluid chamber 9.
  • the lid 20 includes a heater installation portion 30a where the heater 21 is installed, electrical component installation portions 30b and 30c where electrical components 40 to 46 related to energization of the heater 21 are installed, and the lid portion 20 ( The thickness of the top plate portion 30) is configured to include thin portions 30d and 30e that reduce the thickness between the heater installation portion 30a and the electrical component installation portions 30b and 30c.
  • the thin portion 30d partially reduces the cross-sectional area of the top plate portion 30 between the heater installation portion 30a and the electrical component installation portion 30b, and suppresses the heat of the heater 21 from being transmitted to the IGBTs 44 and 45.
  • the thin portion 30d partially reduces the cross-sectional area of the top plate portion 30 between the heater installation portion 30a and the electrical component installation portion 30b, and suppresses the heat of the heater 21 from being transmitted to the IGBTs 44 and 45.
  • the thin portion 30d partially reduces the cross-sectional area of the top plate portion 30 between the heater installation portion 30a and the electrical component installation portion 30b, and suppresses the heat of the heater 21 from being transmitted to the IGBTs 44 and 45.
  • the IGBTs 44 and 45 are prevented from rising in temperature, and the operating state for controlling the power supplied to the heater 21 is maintained.
  • the thin-walled portion 30e partially reduces the cross-sectional area of the top plate portion 30 between the heater installation portion 30a and the electrical component installation portion 30c, and suppresses the heat of the heater 21 from being transmitted to the water temperature sensor 43.
  • the water temperature sensor 43 is suppressed from being heated by heat transfer from the heater 21, and the accuracy of detecting the temperature of the hot water flowing through the fluid chamber 9 can be improved.
  • the heat of the heater 21 is suppressed from being transmitted through the top plate 30 by the thin portions 30 d and 30 e. Therefore, it is possible to prevent the temperature of electrical components such as the IGBTs 44 and 45 provided in the lid 20 and the water temperature sensor 43 from rising excessively, and to operate the electrical components stably. And it prevents that the temperature of resin packing (illustration omitted) provided between the covers 50 rises too much, and the heat resistance of packing is ensured.
  • the thin-walled portions 30d and 30e are formed by grooves 31 and 32 extending in a direction (width direction) crossing between the heater installation portion 30a and the electrical component installation portions 30b and 30c. It was.
  • the thermal resistance of the thin portion 30d and the thin portion 30e can be adjusted by changing the number or shape of the grooves 31, 32.
  • the grooves 31 and 32 are configured to be continuous from one end to the other end.
  • the thermal resistance of the thin portion 30d and the thin portion 30e can be adjusted by changing the depth or opening width (groove width) of the grooves 31, 32.
  • the grooves 31 and 32 are configured to be recessed in a concave shape with respect to the fluid chamber wall surface 16 of the top plate portion 30 that forms the fluid chamber 9.
  • the heat of the thin-walled portions 30d and 30e is radiated from the grooves 31 and 32 to the hot water flowing through the fluid chamber 9, and is prevented from being transmitted to the electrical component installation portions 30b and 30c. Therefore, the heat resistance of electrical components such as the IGBTs 44 and 45 and the water temperature sensor 43 is improved.
  • grooves 31 and 32 are not limited to the configuration described above, and the grooves 31 and 32 may be recessed with respect to the electrical equipment chamber wall surface 17 of the top plate 30 that forms the electrical equipment chamber 8.
  • the top plate portion 30 is configured such that the rib 33 protruding into the fluid chamber 9 is formed from the vicinity of the heater installation portion 30a to the vicinity of the electrical component installation portions 30b and 30c.
  • the top plate portion 30 is improved in the rigidity of the portion where the thin portion 30d is formed by the rib 33. Therefore, even if the thin plate portion 30d is formed, the top plate portion 30 is provided with the rib 33, so that the rigidity thereof can be made equivalent to that when the thin plate portion 30d is not formed.
  • the rib 33 protrudes from the fluid chamber wall surface 16 of the top plate 30 to the fluid chamber 9.
  • the top plate 30 includes the rib 33, so that the surface area facing the fluid chamber 9 increases. For this reason, it is urged that the heat of the top plate 30 is radiated to the hot water flowing through the fluid chamber 9.
  • rib 33 is not limited to the above-described configuration, and may be configured to protrude from the electrical component chamber wall surface 17 of the top plate portion 30 that forms the electrical component chamber 8.
  • the lid 20 includes the top plate 30 that closes the opening 15 of the tank 10, the heating unit 22 that houses the heater 21, and the support unit 24 that supports the heating unit 22 on the top plate 30. And a configuration further comprising:
  • the surface area of the heating unit 22 is a heat transfer area for exchanging heat with hot water. 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. Therefore, the heat transfer efficiency that the heater 21 heats the hot water is improved.
  • the thin portions 30d and 30e are formed on the top plate portion 30.
  • the thin-walled portions 30d and 30e suppress the heat of the heater 21 from being transmitted to the electrical component installation portions 30b and 30c via the heating portion 22, the support portion 24, and the top plate portion 30. Therefore, it is possible to achieve both the improvement of the heat transfer efficiency for the heater 21 to heat the hot water and the improvement of the heat resistance of the electrical components such as the IGBTs 44 and 45 and the water temperature sensor 43.
  • thin portions 30g and 30h are formed by a plurality of grooves 61 and 62 arranged at intervals in the width direction of the top plate portion 30.
  • the grooves 61 and 62 are formed so as to extend along the longitudinal direction of the top plate portion 30.
  • the thin-walled portion 30g formed by the groove 61 partially has a cross-sectional area of the top plate portion 30 between the heater installation portion 30a where the support portion 24 is provided and the electrical component installation portion 30b where the IGBTs 44 and 45 are provided. It reduces and suppresses that the heat
  • the top plate portion 30 is formed with a pair of ribs 33 protruding from the fluid chamber wall surface 16.
  • the pair of ribs 33 extend parallel to each other with the thin portion 30g interposed therebetween, and extend so as to intersect the extension line of the thin portion 30g.
  • the pair of ribs 33 and the thin portion 30 g are disposed symmetrically about the axis O.
  • the thin portion 30h formed by the groove 62 partially reduces the cross-sectional area of the top plate 30 between the heater installation portion 30a and the electrical component installation portion 30c, and the heat of the heater installation portion 30a is reduced to the electrical component.
  • the transmission to the installation unit 30c is suppressed.
  • the water temperature sensor 43 is suppressed from being heated by heat transfer from the heater 21, and the accuracy of detecting the temperature of the hot water flowing through the fluid chamber 9 can be improved.
  • the thin-walled portions 30g and 30h according to the modified example include a plurality of extending grooves 61 that are juxtaposed at intervals in a direction crossing between the heater installation portion 30a and the electrical component installation portions 30b and 30c. 62.
  • the thermal resistance of the thin portion 30g and the thin portion 30h can be adjusted by changing the number and depth of the grooves 61 and 62.
  • the grooves 61 and 62 have a configuration (substantially square shape) extending in a direction (longitudinal direction) in which the heater installation portion 30a and the electrical component installation portions 30b and 30c are arranged in parallel.
  • the top plate portion 30 Based on the above configuration, in the top plate portion 30, a portion sandwiched between adjacent grooves 61 extends in the longitudinal direction, and a portion sandwiched between adjacent grooves 62 extends in the longitudinal direction. For this reason, as for the top-plate part 30, the rigidity of the site
  • the thin-walled portion 30f according to the modified example is formed by a step 34 provided continuously from the vicinity of the heater installation portion 30a to the electrical component installation portion 30b.
  • the top plate portion 30 is formed with a pair of ribs 33 protruding from the fluid chamber wall surface 16.
  • the ribs 33 extend in parallel to each other with the thin portion 30f interposed therebetween, and extend so as to intersect the extension line of the thin portion 30f.
  • the pair of ribs 33 increases the rigidity of the portion where the thin portion 30 f of the top plate portion 30 is formed. Therefore, the top plate portion 30 is provided with the rib 33 even if the thin portion 30f is formed, so that the rigidity thereof can be made equivalent to the case where the thin portion 30f is not formed.
  • the thin-walled portion 30f reduces the thickness T4 of the electrical component installation portion 30b as compared with the thickness T3 of the heater installation portion 30a, thereby reducing the heat storage amount (heat capacity) of the electrical component installation portion 30b.
  • the heat of the electrical component installation part 30b is radiated to the hot water flowing through the fluid chamber 9, so that the temperature rise of the electrical component installation part 30b and the IGBTs 44 and 45 is suppressed, and the operating state for controlling the power supply of the heater 21 is achieved. Maintained.
  • the hot water supplied from the supply port 11 flows through the inner peripheral flow path 28, then flows through the outer peripheral flow path 38 and is discharged from the discharge port 12.
  • the present invention is not limited thereto, and the hot water supplied from the supply port 11 may flow through the outer peripheral flow channel 38 and then flow through the inner peripheral flow channel 28 and be discharged from the discharge port 12.
  • the warm water before flowing through the inner peripheral flow path 28 is guided to the fluid chamber wall surface 16, it is urged that the heat of the electrical component installation portions 30 a and 30 b is radiated from the fluid chamber wall surface 16 to the warm water. .

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  • 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)
  • Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

La présente invention concerne un dispositif de chauffage de fluide (100) permettant de chauffer un fluide, lequel dispositif comporte : un élément chauffant (21) qui génère de la chaleur lorsqu'un courant électrique passe à travers celui-ci ; un réservoir (10) présentant une ouverture (15) et recevant l'élément chauffant (21) ; et un couvercle (20) permettant de fermer l'ouverture (15) dans le réservoir (10) pour former une chambre de fluide (9) à travers laquelle le fluide s'écoule. Le couvercle (20) comporte : une section d'installation d'élément chauffant (20a) sur laquelle l'élément chauffant (21) est installé ; des sections d'installation de composants électriques (30b, 30c) sur lesquelles des composants électriques (40-46) relatifs à la conduction d'un courant électrique à travers l'élément chauffant (21) sont installés ; et des sections à paroi mince (30d, 30e) situées entre la section d'installation d'élément chauffant (20a) et les sections d'installation de composants électriques (30b, 30c) et formées par réduction de l'épaisseur du couvercle (20).
PCT/JP2017/016487 2016-05-31 2017-04-26 Dispositif de chauffage de fluide Ceased WO2017208687A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016108498A JP2017215084A (ja) 2016-05-31 2016-05-31 流体加熱装置
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WO2022230758A1 (fr) 2021-04-28 2022-11-03 株式会社ヴァレオジャパン Dispositif de régulation de chauffage et programme de régulation, unité de chauffage de fluide, dispositif à cycle de chauffage et climatiseur de véhicule qui en est équipé
WO2023026871A1 (fr) 2021-08-24 2023-03-02 株式会社ヴァレオジャパン Dispositif de régulation de chauffage et programme de régulation, unité de chauffage de fluide, dispositif à cycle de chauffage et climatiseur de véhicule le comprenant
JP7687770B2 (ja) 2022-02-09 2025-06-03 株式会社ヴァレオジャパン 暖房制御装置及び制御プログラム、流体加熱ユニット、暖房サイクル装置及びそれを備える車両用空調装置

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JPS60191842U (ja) * 1984-05-30 1985-12-19 アイシン精機株式会社 温水タンク
JPS61113937A (ja) * 1984-11-07 1986-05-31 三菱電機株式会社 温水洗浄装置
JPS6289379U (fr) * 1985-11-25 1987-06-08
JPH11289036A (ja) * 1998-04-03 1999-10-19 Denso Corp 電子装置
JP2007250921A (ja) * 2006-03-17 2007-09-27 Konica Minolta Photo Imaging Inc 熱交換装置
JP2009257729A (ja) * 2008-04-18 2009-11-05 Sang Pil Choi 分離可能な温水槽
JP2010170365A (ja) * 2009-01-23 2010-08-05 Fuji Electric Retail Systems Co Ltd 温水タンク

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JPS60191842U (ja) * 1984-05-30 1985-12-19 アイシン精機株式会社 温水タンク
JPS61113937A (ja) * 1984-11-07 1986-05-31 三菱電機株式会社 温水洗浄装置
JPS6289379U (fr) * 1985-11-25 1987-06-08
JPH11289036A (ja) * 1998-04-03 1999-10-19 Denso Corp 電子装置
JP2007250921A (ja) * 2006-03-17 2007-09-27 Konica Minolta Photo Imaging Inc 熱交換装置
JP2009257729A (ja) * 2008-04-18 2009-11-05 Sang Pil Choi 分離可能な温水槽
JP2010170365A (ja) * 2009-01-23 2010-08-05 Fuji Electric Retail Systems Co Ltd 温水タンク

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