WO2018110193A1 - Dispositif chauffant électrique de climatiseur de véhicule - Google Patents

Dispositif chauffant électrique de climatiseur de véhicule Download PDF

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Publication number
WO2018110193A1
WO2018110193A1 PCT/JP2017/041146 JP2017041146W WO2018110193A1 WO 2018110193 A1 WO2018110193 A1 WO 2018110193A1 JP 2017041146 W JP2017041146 W JP 2017041146W WO 2018110193 A1 WO2018110193 A1 WO 2018110193A1
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WO
WIPO (PCT)
Prior art keywords
fin
fins
heating element
electric heater
air conditioner
Prior art date
Application number
PCT/JP2017/041146
Other languages
English (en)
Japanese (ja)
Inventor
山本　雄大
岩崎　達也
Original Assignee
株式会社日本クライメイトシステムズ
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 株式会社日本クライメイトシステムズ filed Critical 株式会社日本クライメイトシステムズ
Priority to EP17881707.8A priority Critical patent/EP3530501B1/fr
Priority to CN201780072189.7A priority patent/CN109982879A/zh
Publication of WO2018110193A1 publication Critical patent/WO2018110193A1/fr

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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
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0429—For vehicles
    • F24H3/0452—Frame constructions
    • F24H3/0476—Means for putting the electric heaters in the frame under strain, e.g. with springs
    • 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
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F24H3/0429—For vehicles
    • F24H3/0435—Structures comprising heat spreading elements in the form of fins
    • 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 structure of an electric heater provided in an air conditioner for a vehicle mounted on, for example, an automobile, and in particular, includes a fin that transmits heat of a heating element that generates heat by supplying electric power to air for air conditioning. Belongs to the technical field of structure.
  • a vehicle air conditioner is sometimes provided with an electric heater for heating air for air conditioning (see, for example, Patent Documents 1 and 2).
  • the electric heater includes a PTC element and a heat dissipation fin, and a spring element for compressing the PTC element and the fin in the stacking direction.
  • the PTC element, the fin and the spring element are stacked by a frame-type frame. Held in a state.
  • Patent Documents 1 and 2 there are provided a plurality of support columns that extend from the upper side to the lower side of the frame type frame and connect the upper side and the lower side.
  • the struts extend straight in the vertical direction and are arranged at equal intervals in the width direction of the frame-type frame.
  • the air for air conditioning is heated by the heat of the PTC element while passing through the fins through the inside of the frame-type frame.
  • the frame-type frames of Patent Documents 1 and 2 are provided with an upper housing and a lower housing that are divided into two in the flow direction of the external air.
  • a PTC element and fins are assembled in a stacked state on the upper housing.
  • the lower housing is assembled to the upper housing, and at this time, the spring element is pushed into the upper housing, and a compressive force is applied to the PTC element and the fin in the stacking direction.
  • the PTC element and the fin are held from both sides in the flow direction of the external air.
  • the present invention has been made in view of such a point, and an object of the present invention is to obtain a high heating performance by an electric heater by suppressing a deviation in fin pitch while suppressing an increase in cost.
  • an engaging portion that engages with the peak of the fin is provided.
  • a first aspect of the present invention is a heating element that generates heat by supplying electric power, a corrugated fin disposed in a state of being stacked on the heating element, and a heating force for applying a compressive force in the stacking direction to the heating element and the fin.
  • a spring member, a heating frame, a fin, and a holding frame that accommodates and holds the spring member in a stacked state, and the air-conditioning air blown into the holding frame passes through the fin and is heated.
  • the fins are disposed so as to be located at the end portions in the stacking direction, and the holding frame is provided on the peak of the fins disposed at the end portions in the stacking direction.
  • a frame-side engaging portion to be engaged is provided.
  • the compression force in the stacking direction acts on the fin by the spring member.
  • the frame-side engaging portion of the holding frame is engaged with the fin crest disposed at the end in the stacking direction, the position of the fin crest is unlikely to shift. That is, even if the plate material is not brazed to the fins, the fin pitch is less likely to deviate from the design value, so that the ventilation resistance is kept good.
  • the holding frame has an abutting surface with which the fins arranged at the end in the stacking direction abut, and the frame side engaging portion is the abutting It is a protrusion part which protrudes from a surface and is arrange
  • the protrusion provided on the contact surface of the fin in the holding frame is disposed between the adjacent peaks of the fin, the position of the peak is more difficult to shift and the ventilation resistance is kept good. be able to.
  • an insulating plate is interposed between the fins stacked in the stacking direction, and the insulating plate has a plate side engaged with the crest of the fin. An engaging portion is provided.
  • a fourth invention is characterized in that, in the third invention, the plate-side engaging portion is a ridge portion that protrudes from the insulating plate and is disposed between adjacent peaks of the fin.
  • the protrusions provided on the insulating plate are arranged between the adjacent peaks of the fins, the position of the peaks is more difficult to shift, and the ventilation resistance can be kept good.
  • a heating element that generates heat when supplied with power, a corrugated fin disposed in a stacked state on the heating element, and a compressive force in the stacking direction acting on the heating element and the fin.
  • a spring member ; an insulating plate interposed between the fins stacked in the stacking direction; and a holding frame that houses and holds the heating element, the fin, the spring member, and the insulating plate in a stacked state.
  • the insulating plate has a plate-side engagement with the fins. A joint portion is provided.
  • the compression force in the stacking direction acts on the fin by the spring member.
  • the plate-side engaging portion of the insulating plate is engaged with the fin crest, the position of the fin crest is difficult to shift. That is, even if the plate material is not brazed to the fins, the fin pitch is less likely to deviate from the design value, so that the ventilation resistance is kept good.
  • the frame side engaging portion provided on the holding frame is engaged with the fin crest, so that the deviation of the fin pitch is suppressed while suppressing the cost increase, and the electric heater is used. High heating performance can be obtained.
  • the protrusions provided on the contact surfaces of the fins in the holding frame are arranged between the adjacent peaks of the fins, so that the position of the peaks is more difficult to shift,
  • the plate-side engaging portion that engages with the peak of the fin is provided on the insulating plate arranged between the fins, the displacement of the fin pitch located at the intermediate portion in the stacking direction is suppressed. be able to.
  • the protrusions provided on the insulating plate are arranged between the adjacent peaks of the fin, the position of the peaks is more difficult to shift,
  • the plate-side engaging portion that engages the fin crest is provided on the insulating plate interposed between the fins stacked in the stacking direction, the fin pitch is suppressed while suppressing an increase in cost. It is possible to obtain a high heating performance by the electric heater while suppressing the deviation.
  • FIG. 4 is a sectional view taken along line IV-IV in FIG. 2.
  • FIG. 5 is a cross-sectional view taken along line VV in FIG. 1.
  • FIG. 6 is a sectional view taken along line VI-VI in FIG. 2.
  • It is a perspective view which shows the state which separated the fin upward from the downstream lower side part of the downstream frame structural member. It is a figure which expands and shows the lower part of FIG. It is a perspective view which shows the state which released
  • FIG. 1 shows an electric heater 1 of a vehicle air conditioner according to an embodiment of the present invention.
  • the electric heater 1 is a heater that is disposed inside a vehicle air conditioner (not shown) and heats air for air conditioning introduced from the outside of the vehicle compartment or the inside of the vehicle air conditioner to the inside of the vehicle air conditioner.
  • the vehicle air conditioner is mounted, for example, in an instrument panel (not shown) in the interior of an automobile so that the temperature of the air for air conditioning can be supplied to each part in the interior of the vehicle. Yes.
  • the vehicle air conditioner includes a casing, a blower fan, a cooling heat exchanger, and the electric heater.
  • the blower fan and the heat exchanger for cooling are accommodated in the casing.
  • the blower fan is for sending air for air conditioning.
  • the cooling heat exchanger is for cooling air-conditioning air.
  • the electric heater 1 is disposed inside the casing on the downstream side in the flow direction of the air-conditioning air with respect to the cooling heat exchanger, and is for heating the air-conditioning air.
  • An air mix damper is disposed inside the casing.
  • the air mix damper is for changing the temperature of the conditioned air by changing the amount of air passing through the electric heater 1.
  • a defroster damper, a vent damper, and a heat damper are also disposed inside the casing.
  • the defroster damper is for changing the amount of conditioned air blown toward the inner surface of the front window (not shown), and the vent damper is for changing the amount of conditioned air blown toward the upper body of the occupant.
  • the heat damper is for changing the amount of conditioned air blown out toward the vicinity of the passenger's feet.
  • the structure of the vehicle air conditioner is not limited to the structure described above.
  • the electric heater 1 includes an upper heating element 50, a central first heating element 51, a central second heating element 52 and a lower heating element 53, a plurality of fins 54, an upper spring member (one-side spring member) 55,
  • the holding frame 60 has a rectangular shape that is long in the left-right direction as a whole when viewed from the flow direction of the air-conditioning air.
  • the upper heating element 50, the central first heating element 51, the central second heating element 52, and the lower heating element 53 have a plurality of heat generated by supplying power from a battery or the like (not shown) mounted on the vehicle. It has the same structure with a PTC element (not shown) and has a long plate shape in the left-right direction.
  • a plurality of PTC elements are arranged in the left-right direction.
  • the upstream side and the downstream side in the flow direction of the air conditioning air are defined as shown in FIG. 4, but the air conditioning air may be arranged to flow in the opposite direction.
  • the left side and the right side of the electric heater 1 are defined as shown in each drawing, this may or may not coincide with the left and right sides of the vehicle.
  • the upper side and lower side of the electric heater 1 are defined as shown in the drawings, this may or may not coincide with the upper and lower sides of the vehicle.
  • the upper heating element 50 is disposed on the upper side of the electric heater 1.
  • An electrode plate 50a connected to the PTC element is provided at the right end of the upper heating element 50 so as to protrude rightward.
  • the central first heating element 51 is disposed closer to the upper side in the vertical central portion of the electric heater 1.
  • An electrode plate 51a connected to the PTC element is provided at the right end portion of the central first heating element 51 so as to protrude to the right side.
  • the central second heating element 52 is disposed on the lower side in the vertical central portion of the electric heater 1.
  • An electrode plate 52a connected to the PTC element is provided at the right end portion of the center second heating element 52 so as to protrude to the right side.
  • the lower heating element 53 is disposed below the electric heater 1.
  • An electrode plate 53a connected to the PTC element is provided at the right end of the lower heating element 53 so as to protrude rightward.
  • the left end portions of the upper heating element 50, the central first heating element 51, the central second heating element 52, and the lower heating element 53 protrude to the left from the left end part of the fin 54.
  • the right end portions of the upper heating element 50, the central first heating element 51, the central second heating element 52, and the lower heating element 53 protrude to the right side from the left end part of the fin 54.
  • the fins 54 are corrugated fins having a continuous wave shape that is long in the left-right direction.
  • the member which comprises the fin 54 is a thin plate material made from an aluminum alloy, for example.
  • the fins 54 are disposed on the upper and lower surfaces of the upper heating element 50, the upper and lower surfaces of the central first heating element 51, the upper and lower surfaces of the central second heating element 52, and the upper and lower surfaces of the lower heating element 53, respectively. ing. That is, the fin 54, the upper heating element 50, the central first heating element 51, the central second heating element 52, and the lower heating element 53 are laminated.
  • Fins 54 are arranged at the end portions in the stacking direction of the heat generating elements 50 to 53 and the fins 54, that is, the lower end portions.
  • the fins 54 are corrugated fins, a large number of peaks 54a are formed in the upper and lower portions of the fins 54 at intervals from each other in the left-right direction.
  • a portion of the fin 54 between the upper peak 54a and the lower peak 54a has a flat plate shape extending substantially in the vertical direction.
  • an upper insulating plate 56 extending in the left-right direction is disposed between the two fins 54, 54 disposed between the upper heating element 50 and the central first heating element 51.
  • the fins 54 are in contact with the upper surface and the lower surface of the upper insulating plate 56, respectively.
  • an intermediate insulating plate 57 extending in the left-right direction is disposed between the two fins 54, 54 disposed between the central first heating element 51 and the central second heating element 52. Yes.
  • the fins 54 are in contact with the upper surface and the lower surface of the intermediate insulating plate 57, respectively.
  • a lower insulating plate 58 extending in the left-right direction is disposed between the two fins 54, 54 disposed between the central second heating element 52 and the lower heating element 53.
  • the fins 54 are in contact with the upper and lower surfaces of the lower insulating plate 58, respectively.
  • the upper insulating plate 56, the intermediate insulating plate 57, and the lower insulating plate 58 are made of, for example, a resin material having electrical insulating properties, so that the fins 54, 54 arranged in the vertical direction are not electrically connected. It is a member.
  • the upper insulating plate 56, the intermediate insulating plate 57, and the lower insulating plate 58 have thicknesses (dimensions in the vertical direction) such that the upper heating element 50, the central first heating element 51, the central second heating element 52, and the lower heating element 53. It is set to be thinner than the thickness.
  • the left end portions of the upper insulating plate 56, the intermediate insulating plate 57, and the lower insulating plate 58 protrude to the left from the left end portion of the fin 54.
  • the right end portions of the upper insulating plate 56, the intermediate insulating plate 57, and the lower insulating plate 58 protrude to the right side from the left end portion of the fin 54.
  • the upper spring member 55 is disposed adjacent to the upper portion of the fin 54 positioned at the upper end of the electric heater 1, that is, on one side in the stacking direction of the heating elements 50 to 53 and the fin 54.
  • the upper spring member 55 is for applying an urging force so as to compress the heating elements 50 to 53, the insulating plates 56 to 58 and the fins 54 held by the holding frame 60 in the stacking direction, and the whole is elastic. It is comprised with the metal material which has.
  • the upper spring member 55 includes a base plate portion 55a that extends in the left-right direction along the upper portion of the fin 54, and an upstream elastic member that extends from the upstream edge of the air flow for air conditioning in the base plate portion 55a.
  • a deformable portion 55b and a downstream elastic deformable portion 55c extending from an edge portion on the downstream side of the air flow for air conditioning in the substrate portion 55a are provided.
  • the upstream elastic deformation portion 55b extends upward from the substrate portion 55a and extends obliquely toward the downstream side in the air-conditioning air flow direction, and then the tip end side is bent downward and extends.
  • the downstream elastic deformation portion 55c extends upward from the substrate portion 55a and extends obliquely toward the upstream side in the air-conditioning air flow direction, and then the distal end side is bent downward and extends.
  • the upstream elastic deformation portion 55b and the downstream elastic deformation portion 55c are elastically deformed downward.
  • the holding frame 60 includes an upper heating element 50, a central first heating element 51, a central second heating element 52, a lower heating element 53, fins 54, an upper spring member 55, and an upper insulating plate 56.
  • the intermediate insulating plate 57 and the lower insulating plate 58 are accommodated and held in a stacked state.
  • Most of the holding frame 6 is open at the middle in the vertical direction, and the air-conditioning air blown into the holding frame 6 passes through the fins 54 and is heated.
  • the holding frame 60 is arranged on the upstream side frame constituent member (second frame constituent member) 70 arranged on the upstream side (one side) of the air conditioning air flow and on the downstream side (other side) of the air conditioning air flow direction.
  • the downstream side frame constituent member (first frame constituent member) 80 is configured by combining the upstream side frame constituent member 70 and the downstream side frame constituent member 80.
  • the upstream frame constituent member 70 and the downstream frame constituent member 80 are formed by injection molding a resin material having electrical insulation.
  • the flow direction of the air for air conditioning may be opposite to the direction shown in FIG. 4.
  • the frame constituent member 70 is arranged on the downstream side in the flow direction of the air conditioning air
  • the frame constituent member 80 is The air-conditioning air is arranged upstream in the flow direction.
  • the downstream frame constituent member 80 includes a downstream upper side 81 arranged on one side (upper side) of the heating elements 50 to 53 and the fins 54 and the other side (lower side) of the heating elements 50 to 53 and the fins 54.
  • the downstream upper side 81 extends in the left-right direction.
  • a plurality of upper holding wall portions (first holding wall portions) 81a projecting upstream and extending in the left-right direction are formed on the upstream surface of the downstream upper side 81 in the air-conditioning air flow direction.
  • the upper holding wall portions 81a are arranged at intervals in the left-right direction, but may be wall portions that are continuous in the left-right direction.
  • the downstream lower side portion 82 is formed with a lower holding wall portion (second holding wall portion) 82a that protrudes upstream in the air-conditioning air flow direction and extends in the left-right direction.
  • a fitting hole 82b that opens to the upstream side in the air-conditioning air flow direction is formed long in the left-right direction.
  • heating elements 50 to 53 and fins 54, an upper spring member 55, and an insulating plate are provided between the upper holding wall portion 81a and the lower holding wall portion 82a of the downstream frame constituting member 80.
  • 56 to 58 are arranged between the upper holding wall portion 81a and the lower holding wall portion 82a of the downstream frame constituting member 80.
  • the heating elements 50 to 53, the fins 54, and the insulating plates 56 to 58 are stacked in the order described above.
  • the upper spring member 55 is disposed between the uppermost fin 54 and the downstream upper side portion 81.
  • the intervals between the upper holding wall portion 81a and the lower holding wall portion 82a of the downstream frame constituent member 80 are such that the heating elements 50 to 53, the fins 54, and the insulating plates 56 to 56 are stacked without applying an external force in the stacking direction.
  • the upper spring member 55 are set to be equal to or larger than the total dimension in the stacking direction.
  • the reason that the external force in the stacking direction is not applied is that the upper spring member 55 is in a free state and is not elastically deformed, and the heating elements 50 to 53 and the fins 54 are not deformed.
  • the interval between the upper holding wall portion 81a and the lower holding wall portion 82a is the interval between the lower surface (inner surface) 81b of the upper holding wall portion 81a and the upper surface (inner surface) 82c of the lower holding wall portion 82a. .
  • the dimensions of the heating elements 50 to 53 in the stacking direction (thickness direction), the dimension of the fins 54 in the stacking direction (height), the dimension of the upper spring member 55 in the stacking direction (thickness direction), and the stacking of the insulating plates 56 to 58 The distance between the lower surface 81b of the upper holding wall portion 81a and the upper surface 82c of the lower holding wall portion 82a is larger by the dimension S than the dimension obtained by adding all the dimensions in the direction (thickness direction).
  • the dimension S may be 0, and between the upper holding wall portion 81a and the lower holding wall portion 82a, the heating elements 50 to 53 and the fins 54, the upper spring member 55, the insulating plates 56 to 58, and In such a state that the compression force is not applied to these members, the dimensions may be set.
  • the dimension S is set to, for example, several mm or more in consideration of the tolerances. Is preferred.
  • the upper surface 82c of the downstream lower side portion 82 of the downstream frame constituting member 80 is an abutting surface with which the lower portion of the fin 54 disposed at the lower end portion abuts.
  • a plurality of protrusions 82e disposed between adjacent peaks 54a, 54a of the fin 54 are spaced apart in the left-right direction so as to correspond to the intervals between the peaks 54a, 54a. Open and formed.
  • the protruding portion 82e is a frame-side engaging portion that engages with the peaks 54a and 54a of the fin 54 from the left and right directions.
  • the protrusion 82e engages with the peaks 54a and 54a of the fin 54 from the left and right directions, so that the peaks 54a can be prevented from shifting in the left and right direction when the fins 54 are compressed.
  • the frame side engaging portion may be constituted by a protrusion or the like, for example.
  • the downstream connection portion 83 has a rod shape extending from the upper holding wall portion 81a to the lower holding wall portion 82a, and connects the upper holding wall portion 81a and the lower holding wall portion 82a with the above-described interval maintained. It is a part to do.
  • the downstream connecting portion 83 is positioned on the downstream side in the air-conditioning air flow direction, and the heating elements 50 to 53 and the fins 54, the upper spring member 55, and the insulating plates 56 to 58 are downstream in the air-conditioning air flow direction. Hold from the side.
  • a plurality of downstream side connecting portions 83 are provided at intervals in the left-right direction, and air for air conditioning flows between the downstream side connecting portions 83.
  • the downstream connection part 83 may extend in the up-down direction, or may extend obliquely.
  • the lower surface of the lower insulating plate 58 protrudes downward from the insulating plate 58 and is adjacent to the peaks 54a and 54a adjacent to the fins 54 disposed on the lower side of the insulating plate 58.
  • a plurality of ridges 58a arranged in between are formed at intervals in the left-right direction so as to correspond to the intervals between the peaks 54a, 54a.
  • the protruding portion 58a of the insulating plate 58 is a plate-side engaging portion that engages with the peaks 54a and 54a of the fin 54 from the left and right directions.
  • the protrusions 58a of the insulating plate 58 engage with the peaks 54a and 54a of the fin 54 from the left and right directions, so that the peaks 54a can be prevented from shifting in the left and right directions when the fins 54 are compressed. .
  • the upper surface of the lower insulating plate 58 protrudes upward from the insulating plate 58 and is between the adjacent peaks 54 a and 54 a of the fins 54 disposed on the upper side of the insulating plate 58.
  • the plurality of protrusions 58b to be arranged are formed at intervals in the left-right direction so as to correspond to the intervals between the peaks 54a, 54a.
  • the protrusion 58b of the insulating plate 58 is a plate-side engaging portion that engages with the peaks 54a and 54a of the fin 54 from the left and right directions.
  • the protrusions 58b of the insulating plate 58 engage with the peaks 54a and 54a of the fin 54 from the left and right directions, so that the peaks 54a can be prevented from shifting in the left and right direction when the fins 54 are compressed.
  • the plate side engaging portion may be constituted by, for example, a protrusion.
  • the upstream frame constituent member 70 includes an upstream upper side portion (first coupling portion) 71 disposed on one side (upper side) in the stacking direction of the heating elements 50 to 53 and the fins 54, and the heating elements 50 to 53 and the fins 54.
  • An upstream lower side portion (second coupling portion) 72 disposed on the other side (lower side) in the stacking direction, a left side coupling portion (other side coupling portion) 73, a right side coupling portion (other side coupling portion) 74, and an intermediate It has a connection part (other side connection part) 75 and a spring compression part (one side spring compression part) 76.
  • the upstream upper side 71 extends in the left-right direction.
  • a fitting hole 71a that opens to the downstream side in the air-conditioning air flow direction is formed in the upstream upper side portion 71 so as to be long in the left-right direction so as to correspond to the upper holding wall portion 81a of the downstream frame constituent member 80. Yes.
  • the upper holding wall portion 81a of the downstream frame constituting member 80 is fitted into the fitting hole 71a so that the upstream upper side portion 71 is coupled to the upper holding wall portion 81a.
  • a coupling plate portion 72 a that protrudes downstream and extends in the left-right direction on the downstream surface of the upstream lower side 72 in the flow direction of the air-conditioning air corresponds to the fitting hole 82 b of the downstream frame constituent member 80. Is formed.
  • the coupling plate portion 72a is fitted in a state where it is inserted into the fitting hole 82b of the downstream frame constituent member 80, and the upstream lower side portion 72 is coupled to the lower holding wall portion 82a.
  • the spring compression portion 76 is located below the upstream side portion 71 and has a plate shape extending in the left-right direction as a whole.
  • the spring compression portion 76 is inserted into a gap between the upper holding wall portion 81a of the downstream frame constituting member 80 and the upper spring member 55, and moves the upper spring member 55 in the stacking direction of the heating elements 50 to 53 and the fins 54. This is for elastic deformation.
  • the vertical dimension which is the thickness dimension of the spring compression portion 76, is set longer than the dimension S, and is a dimension that allows the upper spring member 55 to be elastically deformed by, for example, 1 mm or more as shown in FIG. Yes.
  • the compression force of the upper spring member 55 can be adjusted by the thickness dimension of the spring compression portion 76.
  • the upper spring member can be adjusted to such an extent that the heating elements 50 to 53, the fins 54, and the like do not shift.
  • a compression force of 55 is set.
  • the air compression air flow direction downstream side of the spring compression portion 76 is the front end side in the insertion direction into the gap, and the thickness of the front end side of the spring compression portion 76 is set so as to decrease toward the front end. . Thereby, the front end side of the spring compression part 76 can be easily inserted into the gap.
  • the surface on the upper spring member 55 side of the spring compression portion 76 that is, the lower surface 76a of the spring compression portion 76 extends in the left-right direction.
  • a plurality of protrusions 76b extending in the insertion direction into the gap are formed at intervals in the left-right direction.
  • the protruding portion 76b is continuous from the upstream side to the downstream side in the flow direction of the air-conditioning air on the lower surface 76a of the spring compression portion 76.
  • the protruding portion 76b comes into contact with the upstream elastic deformation portion 55b and the downstream elastic deformation portion 55c of the upper spring member 55.
  • the number of the protrusion parts 76b is not specifically limited.
  • the left connecting portion 73 has a rod shape extending from the left side of the upstream upper side portion 71 to the left side of the upstream lower side portion 72.
  • the right connecting portion 74 has a rod shape extending from the right side of the upstream upper side portion 71 to the right side of the upstream lower side portion 72.
  • the intermediate connecting portion 75 has a rod shape extending from the left-right direction intermediate portion of the upstream upper side portion 71 to the left-right direction intermediate portion of the upstream lower side portion 72.
  • the left connecting portion 73, the right connecting portion 74, and the intermediate connecting portion 75 are portions that connect the upstream upper side portion 71 and the upstream lower side portion 72 with a predetermined distance therebetween. Further, the left connecting portion 73, the right connecting portion 74, and the intermediate connecting portion 75 are positioned on the upstream side in the air-conditioning air flow direction, and the heating elements 50 to 53, the fins 54, the upper spring member 55, and the insulating plate. 56 to 58 are held from the upstream side in the flow direction of the air-conditioning air. Air conditioning air flows between the left connecting portion 73, the right connecting portion 74, and the intermediate connecting portion 75. In addition, the left side connection part 73, the right side connection part 74, and the intermediate
  • a left cap member 91 and a right cap member 92 are provided at the left end portion and the right end portion of the electric heater 1, respectively.
  • the left cap member 91 is formed so as to cover the left end portions of the upstream side frame constituting member 70 and the downstream side frame constituting member 80, and is formed so as to be fitted to the left end portion.
  • the right cap member 92 is formed so as to cover the right end portions of the upstream side frame constituting member 70 and the downstream side frame constituting member 80, and is formed so as to be fitted to the right end portion.
  • the insulating plates 58 are stacked and accommodated in the downstream frame constituent member 80. That is, the heating elements 50 to 53, the fins 54, and the insulating plates 56 to 58 are stacked in the order described above, and are disposed between the upper holding wall portion 81a and the lower holding wall portion 82a of the downstream frame constituting member 80. Further, the upper spring member 55 is disposed between the fin 54 disposed on the uppermost side and the downstream upper side portion 81.
  • the distance between the upper holding wall portion 81a and the lower holding wall portion 82a of the downstream frame constituting member 80 is such that the heating elements 50 to 53, the fins 54, the insulating plates 56 to 58, and the upper spring member 55 are stacked. Since the total dimension or more is secured, the compressive force by the upper spring member 55 does not act on the heating elements 50 to 53 and the fins 54. Therefore, even before the upstream frame constituting member 70 is assembled to the downstream frame constituting member 80, the heating elements 50 to 53 and the fins 54 are difficult to jump out of the downstream frame constituting member 80, and the assembling workability is good. become.
  • the upstream compression member 76 When the upstream compression member 76 is inserted between the upper holding wall 81a and the upper spring member 55 when the upstream frame component 70 is assembled to the downstream frame component 80, the compression force of the upper spring member 55 acts. Therefore, the force required at the start of assembling is small, and this also improves the assembling workability.
  • the upper spring member 55 When the spring compression portion 76 is inserted between the upper holding wall portion 81a and the upper spring member 55, the upper spring member 55 is elastically deformed in the stacking direction of the heating elements 50 to 53 and the fins 54. 53, the fins 54 and the insulating plates 56 to 58 are compressed in the stacking direction, so that the heating elements 50 to 53, the fins 54 and the insulating plates 56 to 58 are free from rattling.
  • the upstream frame constituent member 70 is assembled to the downstream frame constituent member 80, the upper holding wall portion 81a of the downstream frame constituent member 80 is fitted in the state of being inserted into the fitting hole 71a of the upstream frame constituent member 70.
  • the upstream upper side 71 is joined to the upper holding wall 81a.
  • the lower coupling plate portion 72a of the upstream frame constituting member 70 is fitted in the state inserted into the fitting hole 82b of the downstream frame constituting member 80, and the upstream lower side portion 72 is the lower holding wall portion. 82a.
  • the heating elements 50 to 53, the fins 54, the insulating plates 56 to 58, and the upper spring member 55 are connected to the air-conditioning air by the left connection part 73, the right connection part 74, the intermediate connection part 75, and the downstream connection part 83. It is held from both sides in the flow direction. Finally, the left cap member 91 and the right cap member 92 are assembled to the holding frame 60.
  • the ridge portion 82e of the downstream lower side portion 82 of the downstream frame constituent member 80 is engaged with the mountain 54a of the fin 54 disposed at the lower end portion. Therefore, the position of the peak 54a of the fin 54 is difficult to shift. That is, even if the plate material is not brazed to the fins 54, the fin pitch is difficult to deviate from the design value, so that the ventilation resistance can be kept good, and high heating performance by the electric heater 1 can be obtained.
  • the protrusions 58a and 58b that engage with the crest 54a of the fin 54 are provided on the insulating plates 56 to 58 disposed between the fins 54 and 54, the deviation of the fin pitch located at the intermediate portion in the stacking direction is provided. Can be suppressed.
  • the upper spring member 55 assembled to the downstream frame constituent member 80 includes the heating elements 50 to 53, the fins 54, and It is possible to prevent a force in the stacking direction from acting on the insulating plates 56 to 58. This makes it difficult for the heating elements 50 to 53, the fins 54, and the insulating plates 56 to 58 to jump out of the downstream frame constituent member 80, and the force required at the start of assembly is small, so that the assembly workability is improved. Can do.
  • the distance between the upper holding wall portion 81a and the lower holding wall portion 82a of the downstream frame constituting member 80 is set to the total in the stacking direction of the heating elements 50 to 53, the fins 54, the insulating plates 56 to 58, and the upper spring member 55. Since the size is larger than the size, the assembly workability can be improved even if there are some dimensional errors in the stacking direction in the heating elements 50 to 53, the fins 54, and the like.
  • the present invention can be used in, for example, an air conditioner mounted on an automobile.

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)
  • Air-Conditioning For Vehicles (AREA)
  • Resistance Heating (AREA)

Abstract

Selon l'invention, un cadre de maintien reçoit et maintient un corps chauffant, des ailettes (54) et un élément ressort dans un état empilé. Le cadre de maintien est pourvu de parties saillantes (82e) destinées à venir en prise avec les crêtes (54a) des ailettes (54) disposées au niveau de parties extrémités dans le sens de l'empilement.
PCT/JP2017/041146 2016-12-13 2017-11-15 Dispositif chauffant électrique de climatiseur de véhicule WO2018110193A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP17881707.8A EP3530501B1 (fr) 2016-12-13 2017-11-15 Dispositif chauffant électrique de climatiseur de véhicule
CN201780072189.7A CN109982879A (zh) 2016-12-13 2017-11-15 车辆用空调装置的电加热器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-241420 2016-12-13
JP2016241420A JP6982390B2 (ja) 2016-12-13 2016-12-13 車両用空調装置の電気式ヒータの製造方法

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Publication number Priority date Publication date Assignee Title
FR3104882A1 (fr) * 2019-12-13 2021-06-18 Valeo Systemes Thermiques Dispositif chauffant électrique pour véhicule automobile
CN111649474A (zh) * 2020-06-11 2020-09-11 安徽江淮松芝空调有限公司 一种简易水暖ptc系统

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939490B1 (fr) 1963-05-24 1974-10-25
JPS6133251Y2 (fr) * 1980-09-25 1986-09-29
JPH08204074A (ja) * 1995-01-30 1996-08-09 Calsonic Corp ヒートシンク及びその製造方法
JP2005147502A (ja) * 2003-11-14 2005-06-09 Matsushita Electric Ind Co Ltd 調湿装置
EP1839920A1 (fr) * 2006-03-31 2007-10-03 Behr GmbH & Co. KG Chauffage électrique pour un système de climatisation d'un véhicule
JP2010132080A (ja) * 2008-12-03 2010-06-17 Denso Corp ヒータユニット
JP4880648B2 (ja) 2007-07-18 2012-02-22 エーベルスパッヒャー・カテム・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンディットゲゼルシャフト 電気加熱装置およびその製造方法
JP2016107865A (ja) * 2014-12-08 2016-06-20 株式会社日本クライメイトシステムズ 車両用空調装置の電気式ヒータ

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2592286Y2 (ja) * 1991-11-20 1999-03-17 株式会社ゼクセル 電気式加熱器
TW376171U (en) * 1998-11-24 1999-12-01 Foxconn Prec Components Co Ltd Radiating device
JP2007118779A (ja) * 2005-10-28 2007-05-17 Calsonic Kansei Corp ヒータ構造
JP5243941B2 (ja) * 2008-12-17 2013-07-24 ヤンマー株式会社 電動管理機
ITRM20130440A1 (it) * 2013-07-26 2015-01-27 Bitron Spa Dispositivo di riscaldamento, in particolare per il riscaldamento dello abitacolo di una automobile, e metodo di montaggio di detto dispositivo.
WO2016139730A1 (fr) * 2015-03-02 2016-09-09 三菱電機株式会社 Échangeur de chaleur du type à ailettes et tubes et dispositif à cycle de réfrigération doté de celui-ci

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4939490B1 (fr) 1963-05-24 1974-10-25
JPS6133251Y2 (fr) * 1980-09-25 1986-09-29
JPH08204074A (ja) * 1995-01-30 1996-08-09 Calsonic Corp ヒートシンク及びその製造方法
JP2005147502A (ja) * 2003-11-14 2005-06-09 Matsushita Electric Ind Co Ltd 調湿装置
EP1839920A1 (fr) * 2006-03-31 2007-10-03 Behr GmbH & Co. KG Chauffage électrique pour un système de climatisation d'un véhicule
JP4880648B2 (ja) 2007-07-18 2012-02-22 エーベルスパッヒャー・カテム・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コンパニー・コマンディットゲゼルシャフト 電気加熱装置およびその製造方法
JP2010132080A (ja) * 2008-12-03 2010-06-17 Denso Corp ヒータユニット
JP2016107865A (ja) * 2014-12-08 2016-06-20 株式会社日本クライメイトシステムズ 車両用空調装置の電気式ヒータ

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JP6982390B2 (ja) 2021-12-17
EP3530501A1 (fr) 2019-08-28
CN109982879A (zh) 2019-07-05
EP3530501B1 (fr) 2021-02-17
EP3530501A4 (fr) 2019-10-30
JP2018095075A (ja) 2018-06-21

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