WO2007129608A1 - Dispositif de chauffage électrique - Google Patents

Dispositif de chauffage électrique Download PDF

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Publication number
WO2007129608A1
WO2007129608A1 PCT/JP2007/059171 JP2007059171W WO2007129608A1 WO 2007129608 A1 WO2007129608 A1 WO 2007129608A1 JP 2007059171 W JP2007059171 W JP 2007059171W WO 2007129608 A1 WO2007129608 A1 WO 2007129608A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric heater
heat
members
terminal
heater device
Prior art date
Application number
PCT/JP2007/059171
Other languages
English (en)
Japanese (ja)
Inventor
Syotaro Abe
Original Assignee
Calsonic Kansei Corporation
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 Corporation filed Critical Calsonic Kansei Corporation
Publication of WO2007129608A1 publication Critical patent/WO2007129608A1/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/22—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant
    • B60H1/2215—Heating, cooling or ventilating [HVAC] devices the heat being derived otherwise than from the propulsion plant the heat being derived from electric heaters
    • 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
    • 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
    • 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
    • F24H3/0441—Interfaces between the electrodes of a resistive heating element and the power supply means
    • F24H3/0447—Forms of the electrode terminals, e.g. tongues or clips
    • 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
    • F24H3/047—Multiple-piece frames assembled on their four or more edges
    • 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
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
    • F24H9/1863—Arrangement or mounting of electric heating means
    • F24H9/1872—PTC

Definitions

  • the present invention relates to an electric heater device including a PTC (Positive Temperature Coefficient) element as a heat source.
  • PTC Positive Temperature Coefficient
  • a heater unit provided with a heat radiating member in contact with a long heat generating member provided with a PTC element that generates heat upon energization, and a plurality of heater units in the direction in which the heat generating member and the heat radiating member are arranged.
  • the heat radiating member when the heater laminate is formed, has a flange extending over the entire length of the end edge of the heat generating member as a means for preventing the width direction from coming off.
  • European Patent No. 0575649 Is known (see, for example, European Patent No. 0575649)
  • the portion in contact with the heat generating member is at the highest temperature.
  • the flange raised on the heat generating member hinders the air from hitting the hottest portion of the heat radiating member, and this causes deterioration in thermal efficiency.
  • An object of the present invention is to provide an electric heater device which is made paying attention to such a conventional problem and can improve the thermal efficiency.
  • an electric heater device is based on energization.
  • a long heat generating member having a PTC element that generates heat, a heat dissipating member provided in contact with the heat generating member, and a heater laminated body formed by stacking the heat dissipating member and the heat generating member in the longitudinal direction.
  • a pair of housing members that support both ends, and a position restricting member that is mounted on both sides of the housing member so that movement in the width direction is restricted by the two housing members on the opposite side of the heat dissipating member.
  • the position restricting member is provided with a restricting mechanism that restricts relative displacement of the adjacent heat dissipating member in the width direction by a predetermined amount or more.
  • the prevention of the radiating member from coming off in the width direction is regulated by the regulating mechanism provided on the position regulating member provided on the opposite side of the heat generating member across the radiating member. .
  • the movement of the heat radiating member can be restricted with a small number of parts compared to the case where the position restriction flange is raised only to one side, and by reducing the number of parts, It is possible to further reduce the number of assembling steps for the electric heater device, reduce the manufacturing cost, reduce the weight, and reduce the size.
  • FIG. 1 is a configuration explanatory view showing an outline of a configuration of a vehicle air conditioning unit ACU to which an electric heater device according to a first example embodying the best mode of the present invention is applied.
  • FIG. 2 is a perspective view showing the electric heater device of the first embodiment according to the present invention.
  • FIG. 3 is a perspective view showing a radiating fin member applied to the electric heater device of the first embodiment according to the present invention.
  • FIG. 4A is a perspective view showing an end portion of a heat generating member applied to the electric heater device of the first embodiment according to the present invention, showing a state in which a second contact sheet and a tube member are omitted.
  • FIG. 4B shows the end of the heat generating member applied to the electric heater device of the first embodiment according to the present invention.
  • FIG. 3 is a perspective view showing a completed state in which the second contact sheet and the tube member are not omitted.
  • FIG. 5 is a perspective view showing a position frame applied to the electric heater device of the first embodiment according to the present invention.
  • FIG. 6 is an enlarged view showing an end portion of the position frame shown in FIG.
  • [7A] A sectional view showing a heat generating member applied to the electric heater device of the first embodiment according to the present invention, showing the entire cross section.
  • FIG. 7B is a cross-sectional view showing the heat generating member applied to the electric heater device of the first embodiment according to the present invention, and shows only the tube member.
  • FIG 8A A sectional view showing the operation of the main part of the electric heater device according to the first embodiment of the present invention, showing the initial state of mounting the front housing.
  • FIG. 8B is a cross-sectional view showing the operation of the main part of the electric heater device according to the first embodiment of the present invention, showing the front housing after being mounted.
  • FIG. 10 A perspective view showing an end housing applied to the electric heater device of the first embodiment according to the present invention.
  • FIG. 11 A perspective view showing a front housing applied to the electric heater device according to the first embodiment of the present invention.
  • FIG. 12A is a perspective view showing a support plate applied to the electric heater device of the first embodiment according to the present invention, showing the whole.
  • FIG. 12B A perspective view showing a support plate applied to the electric heater device of the first embodiment according to the present invention, showing an end portion thereof.
  • FIG. 13A A perspective view showing an end plate applied to the electric heater device of the first embodiment according to the present invention, showing the whole.
  • FIG. 13B A perspective view showing an end plate applied to the electric heater device of the first embodiment according to the present invention, showing an end portion thereof.
  • FIG. 14 of the front housing applied to the electric heater device of the first embodiment according to the present invention.
  • FIG. 17 A perspective view showing a strobe member applied to the electric heater device of the first embodiment according to the present invention.
  • FIG. 18A A sectional view showing a comparative example for explaining the operation of the electric heater device according to the first embodiment of the present invention, showing a state before the front housing is mounted.
  • FIG. 18B is a cross-sectional view showing a comparative example for explaining the operation of the electric heater device according to the first embodiment of the present invention, and shows the end of the mounting of the front housing.
  • FIG. 19A is a diagram showing a main part of an electric heater device of a second example embodying the embodiment of the present invention, and is a cross-sectional view thereof.
  • FIG. 19B is a perspective view showing the main part of the electric heater device of the second example that specifically illustrates the embodiment of the present invention.
  • FIG. 1 to 18 show a first embodiment of an electric heater device according to the present invention.
  • the electric heater device A in the first embodiment is applied to, for example, the vehicle air conditioning unit ACU shown in FIG.
  • This vehicle air conditioning unit ACU includes a blower fan 2, an evaporator 3, and a heater core 4 that are arranged in this order from the air inlet la side of the unit housing 1.
  • the vehicle air conditioning unit ACU has air outlets lb, lc, and Id.
  • An air mix door 5 is provided in the vicinity of the heater core 4. When the opening degree of the air mix door 5 is adjusted, the mixing ratio of the cool air that has passed through the evaporator 3 and the warm air that has passed through the heater core 4 can be arbitrarily adjusted, and thereby, from each of the outlets lb, lc, and Id The blown air temperature can be adjusted.
  • the electric heater device A is arranged in parallel with the heater core 4, and is energized to generate heat when the heat generation temperature of the heater core 4 is insufficient.
  • the electric heater device A is effective when used in a vehicle, for example, because the cooling water of a propulsion device (not shown) in a diesel vehicle or the like is relatively low.
  • the electric heater device A includes a heater laminate 10 and end housing members provided at both ends in the longitudinal direction (arrow CD direction) of the heater laminate 10, ie, With front housing 20 and end housing 30!
  • the heater laminate 10 includes three heater units 40, 40, 40 arranged in the vertical direction, a spacing member or support plate 50, 50 arranged between these heater units, and Position restricting members 60 and 60 are provided on the upper surface of the upper heater unit 40 and the lower surface of the lowermost heater unit 40, respectively.
  • the vertical direction is an example
  • this embodiment refers to the direction of the arrow LD in FIG.
  • Each of the heater units 40 includes one heat generating member 70 and two heat radiating members 80 and 80 disposed so as to overlap the heat generating member 70 above and below.
  • Each of the heat radiating members 80 is also formed with, for example, a heat radiating fin member.
  • each of the radiating fin members 80 is formed in a wave shape as shown in FIG. 3 by a metal plate material (for example, a plate material made of aluminum or aluminum alloy) having excellent thermal conductivity, and the heat generating portion The heat transferred from the material 70 is transferred to the air flowing in the width direction, which is the arrow FL direction.
  • a metal plate material for example, a plate material made of aluminum or aluminum alloy
  • Each of the front housing 20 and the end housing 30 is formed of a material excellent in electrical insulation and metathermal property, for example, fiber reinforced PBT (Polybutylene terephthalate).
  • This fiber reinforced PBT has excellent dimensional stability due to its low water absorption coefficient and thermal expansion coefficient, and also has excellent electrical insulation, small changes in electrical properties due to moisture absorption, and high dielectric breakdown voltage. It has a special feature.
  • the front housing 20 is formed with a box-shaped laminated body insertion portion 21 and a connector connection portion 22.
  • the laminated body insertion portion 21 includes a concave insertion recess 21 a into which one end of the heater laminated body 10 is inserted when the heater laminated body 10 is attached. It is formed to extend in the direction (arrow LD direction). Further, a tube insertion groove 20a, a support plate insertion groove 20b, an end plate insertion groove 20c, and a plate retaining claw 20d, which will be described later, are formed in the insertion recess 21a.
  • the end housing 30 has a concave insertion recess 31a for inserting the other end of the heater laminate 10 when attached to the heater laminate 10 in the lamination direction of the heater laminate 10 (arrow LD direction). Is formed. Further, a tube insertion groove 30a, a support plate insertion groove 30b, an end plate insertion groove 30c, and a plate retaining claw 30d, which will be described later, are formed in the insertion recess 31a.
  • the connector connection portion 22 is formed with an insertion recess 22a into which a connector (not shown) for supplying electric power is inserted.
  • the laminated body insertion portion 21 and the connector connection portion 22 are partitioned by a vertical wall 23, and details thereof will be described later.
  • the heat generating member 70 includes a position frame 71, a plurality of (four in the first embodiment) PTC elements 72, a first contact sheet 73, a second contact sheet 74, and a tube. And a groove member 75.
  • the position frame 71 has a plurality of PTC elements 72 arranged in the longitudinal direction (arrow CD direction) at predetermined intervals.
  • the position frame 71 is made of a material having excellent insulating properties and heat resistance (for example, polyamide). As shown in FIG. 5, cutout portions 71a, 71a, 71a, 71a for holding the PTC element 72 are formed at four locations.
  • FIG. 6 shows the set of engaging claw members 71b and 71b in an enlarged manner, and is arranged with a gap having a predetermined interval in the vertical direction from the main body of the position frame 71. ing. Both contact sheets 7 3 and 74 are inserted into the gaps, respectively, so that the engaging claw members 71b and 71b force against the respective contact sheets 73 and 74, the position frame 71 in the stacking direction (arrows) It is engaged so as to regulate the relative displacement away in the LD direction (see Fig. 4A and Fig. 4B).
  • the PTC element 72 is a semiconductor ceramic mainly composed of barium titanate (BaTi03), generally called PTC (Positive Temperature Coefficient), and has a characteristic of generating heat when energized.
  • BaTi03 barium titanate
  • PTC Platinum Temperature Coefficient
  • the first contact sheet 73 and the second contact sheet 74 are arranged with the PTC element 72 sandwiched from above and below, and each contact sheet 73, 74 is supplied with a power source (not shown).
  • the PTC element 72 is energized by connecting it to the plus and minus.
  • the end of the first contact sheet 73 and the second contact sheet 74 on the side where the front housing 20 is mounted is provided.
  • a first energizing terminal 76 and a second energizing terminal 77 are formed integrally with each other. That is, as shown in FIG. 4A, the end portion of the first contact sheet 73 (the end portion on the side where the front housing 20 is mounted) extends straight in the direction of the arrow CD to the outside of the tube member 75.
  • the first energizing terminal 76 is formed in this portion.
  • the second energizing terminal 77 is integrated with the portion of the second contact sheet 74 on the side where the front housing 20 is mounted, extending outward from the tube member 75. Is formed.
  • a bent piece (bent portion) 77 a is provided between the second energizing terminal 77 and the second contact sheet 74.
  • the bent piece 77a is formed by bending the second energizing terminal 77 so that the interval between the second energizing terminal 77 and the first energizing terminal 76 matches the terminal interval on the connector (not shown) side. Is.
  • the second energizing terminal 77 is formed in a substantially L-shaped cross-sectional shape with the bending force 77a on the proximal end side and the terminal portion 77b on the distal end side also in view of the side force,
  • the terminal portion 77 b is bent substantially at right angles at both the upper and lower end positions, and extends substantially parallel to the first current-carrying terminal 76.
  • the first energizing terminal 76 described above is provided in all of the heat generating members 70, 70, 70
  • the second energizing terminal 77 having the shape shown in FIGS. 4A and 4B is illustrated in FIG. It is provided on the first and second heating members 70, 70 from the top.
  • the thickness of the contact sheets 73 and 74 is approximately 1Z2 which is the thickness of the terminal portions 77b of the first energizing terminal 76 and the second energizing terminal 77. It is formed. That is, the terminal portions 77b of the first energizing terminal 76 and the second energizing terminal 77 are formed by folding and overlapping the portions forming the general portions of the contact sheets 73 and 74. 76 and 77 are formed in the required plate thickness.
  • press-contact current-carrying terminal 78 shown in FIGS. 8A and 8B is entirely formed to have the same plate thickness as the general part of the second contact sheet 74.
  • the tube member 75 is formed in a substantially rectangular cylindrical shape that is short in the vertical direction, and is formed in a vertically split structure with a male tube 75a and a female tube 75b. Yes.
  • An engagement flange 75c is bent at the opening edge of the female tube 75b toward the inside of the opening.
  • an engagement flange 75d having a substantially U-shaped cross section is formed at the opening edge of the male tube 75a and is inserted inside the opening of the female tube 75b and faces the engagement flange 75c substantially in parallel. Has been.
  • the tube member 75 is formed in a cylindrical shape.
  • an elastic member 79 that is urged in a direction to widen the distance between the flanges 75c and 75d is press-fitted.
  • the repulsive force generated by the press-fitting of the elastic member 79 urges the general portion of the male tube 75a and the general portion of the female tube 75b to narrow as shown by arrows a and a. 75b, contact sheets 73 and 74, and PTC element 72 contact pressure.
  • the elastic member 79 is formed of an elastic body having insulating properties such as grease or rubber, and as shown in FIG. 9 which is an enlarged view of the main part of FIG. 7A or FIG. 7B, 79a and 79a are formed in the body. These lip portions 79a and 79a are inserted between the front end surfaces of the respective engagement flanges 75c and 75d and the other tubes 75a and 75b, and the direction in which the tubes 75a and 75b are orthogonal to the dividing direction from the combined state (arrow FL When the relative displacement is made in the direction), the tip surfaces of the engagement flanges 75c and 75d and the other tubes 75a and 75b are prevented from coming into contact with each other to cause a short circuit.
  • the distance L1 between the lower surface of the engagement flange 75c and the male tube 75a facing the engagement flange 75c has a dimension that can surely prevent a short circuit.
  • Both ends of the heat generating member 70 configured as described above are provided at the tube insertion groove 30a formed in the end housing 30 shown in FIG. 10 and the tube insertion groove 20a formed in the front housing 20 shown in FIG. , 20a, and 20a are inserted until their tips hit the bottom of the groove (not shown), and supported in a state where movement in the longitudinal direction (arrow CD direction) and width direction (arrow FL direction) is restricted. Has been.
  • the support plate 50 is provided between the heater unit 40 and the heater unit 40.
  • a plate made of a plate material for example, a plate made of aluminum / aluminum alloy) excellent in thermal conductivity that supports the heat radiating fin members 80, 80 positioned above and below.
  • the support plate 50 is formed in a band plate shape as shown in FIGS. 12A and 12B, and position restricting claws for restricting the longitudinal position of the radiating fin member 80 at both ends in the longitudinal direction.
  • position restriction flanges 50b and 50c are bent downward in the figure, which is one of the lamination directions of the arrow LD, and in the figure which is the other of the lamination directions.
  • a position regulating flange 50c is formed.
  • position restricting flanges 50b and 50c are alternately arranged in the longitudinal direction, and are arranged such that the bending force is reversed in the direction of the overlapping force in the arrow FL direction.
  • This support plate 50 also has both ends in the longitudinal direction at the support plate insertion groove 30b formed in the end housing 30 shown in FIG. 10 and the support plate insertion formed in the front housing 20 shown in FIG. It is inserted into the groove 20b and supported in a state in which movement in the longitudinal direction (arrow CD direction) and width direction (arrow FL direction) is restricted.
  • end plate 60 is a strip-shaped metal plate that forms upper and lower edges of heater laminate 10, and is formed of, for example, a zinc-plated steel plate.
  • the end plate 60 is a position-regulating flange that restricts relative movement in the width direction (arrow FL direction) of the radiating fin member 80 at both end edges in the arrow FL direction.
  • 60a, 60a is formed in a substantially C-shaped vertical cross-sectional shape.
  • a pair of retaining holes 60b and fin regulating claws 60c are formed at both ends of the end plate 60 in the longitudinal direction.
  • the retaining hole 60b is formed in the end plate 60 in a substantially rectangular shape.
  • the fin restricting claw 60c is cut and raised in the same direction as the rising direction of the position restricting flange 60a.
  • the fin restricting claw 60c engages with the longitudinal end of the radiating fin member 80, and the radiating fin member 80 is indicated by an arrow. Restrict relative movement in the CD direction.
  • These end plates 60 are respectively provided in an end plate insertion groove 30c formed in the end housing 30 shown in FIG. 10 and an end plate insertion groove 20c formed in the front housing 20 shown in FIG. Plugged in. In this inserted state, the plate retaining claw 30d formed on the end housing 30 shown in FIG. 10 and the plate formed on the front housing 20 shown in FIG. 11 are inserted into the retaining holes 60b of the end plate 60.
  • the end plate 60 is restricted from moving relative to the housings 20 and 30 in the longitudinal direction by the engagement of the retaining claws 20d.
  • the third heat generating member 70 from the top has the second energizing terminal 77 for connection with a connector (not shown). Therefore, the total number of terminal holes 24 and 25 is five.
  • the heat generating member 70 arranged third from the top is the first and second heat generating members from the top. 70 and 70 are arranged upside down, and the pressure contact energizing terminal 78 of the third heat generating member 70 is press-contacted to the second current energizing terminal 77 of the second heat generating member 70 from the top.
  • a connection conducting terminal 778 is formed in one.
  • the three first energizing terminals 76, 76, 76 are connected to one of the positive and negative polarities, and the second energizing terminal 77 and the connecting energizing terminal 778 are The positive and negative polarities are connected to each other, and the pressure contact energizing terminal 78 is also connected to the same polarity as the second energizing terminal 77.
  • connection energization terminal 778 the second energization terminal 77 functions as an energization terminal connected to the connector.
  • the pressure contact energizing terminal 78 includes a rising portion 78a raised in a direction away from the first energizing terminal 76, and a first portion at the tip of the rising portion 78a. (1) Formed in a substantially shape having a current-carrying terminal 76 and a contact portion 78b extending substantially in parallel. It is.
  • the rising portion 78a is a second energizing terminal in which the abutting portion 78b is positioned above the second contact sheet 74 in a state where the angle is substantially perpendicular to the second contact sheet 74.
  • the length is formed so as to be in pressure contact with 77 terminal portions 77b.
  • the rising portion 78a has an inclination angle ⁇ a so that the abutting portion 78b is in a state of being slightly separated from the terminal portion 77b before the front housing 20 is mounted. Is set to an angle smaller than 90 degrees.
  • the contact portion 78b is formed to have a length that does not reach the terminal insertion hole 25, and protrudes upward so as to be in a line contact state when contacting the terminal portion 77b. It is formed in a curved shape.
  • the description of the front housing 20 will be continued.
  • the pressure receiving portion 21 of the vertical wall 23 of the front housing 20 the pressure receiving portion is located above the fourth terminal insertion hole 25 from the top.
  • the pressure receiving protrusion 26 is formed so as to protrude in the direction of the arrow CD in the figure, and a pressing deformation protrusion 27 as a pressing member is formed so as to protrude substantially parallel to the pressure receiving protrusion 26 at a lower position thereof. .
  • the pressure receiving protrusion 26 is formed so as to be disposed along the upper surface of the terminal portion 77b of the second energizing terminal 77 of the second heating member 70 from the top in the assembled state shown in FIG. 8B, and An obliquely downward guide surface 26a is formed on the lower side of the tip.
  • guide surfaces 24a and 24a are formed on the upper and lower sides of the stacked body insertion portion 21 side. ing. A guide surface 25a is formed only on the lower side of the terminal through hole 25 provided adjacent to the pressure receiving protrusion 26.
  • a heater member 10 is provided with a stagger member 90 at an end portion of each heat generating member 70 on the side where the front housing 20 is attached.
  • the stopper member 90 is formed of a material having excellent electrical insulation and heat resistance, such as fiber-reinforced PBT. As shown in FIG. The parts 91, 91, 91 are integrally formed in a shape that is joined by two rod parts 92, 92.
  • the sandwiching portion 91 is a pair of sandwiching pieces 91 disposed so as to face each other up and down across the insertion space 91a. b, 91b, a holding piece 91c in which one end of each of the holding pieces 91b, 91b is continuous, and a substantially U-shaped cross-sectional shape formed on the body.
  • the insertion space 91a is an end portion of the heat generating member 70 and can sandwich a portion where the tip force of the tube member 75 protrudes, that is, a portion where both contact sheets 73, 74 overlap on both the upper and lower sides of the position frame 71. It is formed at intervals.
  • An engaging claw 91d that engages with the edge of the heat generating member 70 when the heat generating member 70 is inserted into the insertion space 91a is formed at the tip of each clamping piece 91b.
  • the heat generating member 70 is relatively moved in the width direction (arrow FL direction) by the presser piece 91c and the engaging claws 91d, 91d. Is regulated.
  • the rod portion 92 of the stopper member 90 is formed in a rectangular column shape with a rectangular cross section, and on one side faced to the front and wing 20 side, a planar staggered surface formed flush with the clamping portion 91 92a is formed.
  • the stopper member 90 is attached to the engaging claw member 71b of the position frame 71 in the tube mounting state in which the end portions of the heat generating members 70 are inserted into the respective holding portions 91.
  • the staggered surface 92a is formed so as to abut against the bent piece 77a of the second energizing terminal 77.
  • the lower force is also sequentially applied to the end plate 60, the radiating fin member 80, the heat generating member 70, the heat radiating fin member 80, the support plate 50, the heat radiating fin member 80, and the heat generating member.
  • 70, the heat radiating fin member 80, the support plate 50, the heat radiating fin member 80, the heat generating member 70, the heat radiating fin member 80, and the end plate 60 are stacked to form the heater laminate 10.
  • the support plate 50 and the end plate 60 constitute a position restricting member!
  • one end of the heater laminate 10 is fitted with an end knowing 30 as shown in FIG. 15, and then the other end of the heating members 70, 70, 70 of the heater laminate 10 is attached to a stopper member. Install 90, and finally install the front housing 20 to finish the assembly.
  • the current-carrying terminal 78 for pressure contact of the heat generating member 70 shown third from the top in FIG. 16 is brought into contact with the second current-carrying terminal 77 constituting the connection current-carrying terminal 778.
  • a modification is made to increase the contact pressure.
  • a description will be given of the deformation operation of the pressure contact energizing terminal 78 in the connection energizing terminal 778.
  • the rising portion 78a of the energizing terminal 78 for pressure contact has an initial inclination angle ⁇ a as shown in Fig. 8A. As shown, it is formed at an angle smaller than 90 degrees.
  • the current-carrying terminals 76 and 77 are arranged at intervals corresponding to the intervals between the terminal through holes 24 and 25 provided on the vertical wall 23 of the front housing 20. It is done.
  • the rising portion 78a is inclined at an inclination angle ⁇ a, and the abutting portion 78b of the press-contact energizing terminal 78 is connected to the second energizing terminal 77 disposed above it. It is close.
  • the pressure receiving protrusion 26 is in contact with the upper side of the terminal portion 77b of the second energizing terminal 77. Therefore, the terminal portion 77b of the second energizing terminal 77 is prevented from being deformed by this pressure contact, and the above-described pressure contact energizing terminal 78 is reliably deformed and pressed.
  • the pressing deformation projecting piece 27 has its dimension in the direction of the arrow CD set so that the inclination angle ⁇ b of the pressure contact energizing terminal 78 is substantially perpendicular at the end of assembly shown in FIG. 8B. ing.
  • the heat generating member 70 is provided with the stubbing member 90, and the input force in the direction of the arrow CD from the pressing deformation projecting piece 27 to the pressure contact energizing terminal 78.
  • the stubbing surface 92a of the stubbing member 90 Therefore, the energizing terminal 78 for pressure contact is prevented from being excessively deformed.
  • the input to the stopper member 90 is received by the end housing 30 because the position frame 71 of the heat generating member 70 with which the stopper member 90 is engaged is abutted against the end housing 30.
  • a connector (not shown) is connected to the electric heater device A of the first embodiment assembled as described above.
  • this connector is connected, an input is received in the direction of the arrow CD with respect to each energizing terminal 76, 77.
  • this input is received by the end housing 30 at the other end.
  • the second energizing terminal 77 has a bent piece 77a bent in an L-shape, and the input in the arrow CD direction to the terminal portion 77b of the second energizing terminal 77 is folded. Acts in the direction of increasing the angle of rise relative to the curved piece 77a.
  • the stopper surface 92a of the stopper member 90 is provided in contact with the back surface of the bent piece 77a of the second energizing terminal 77, the force acting on the bent piece 77a is applied to the stopper member. At 90, the bent piece 77a is prevented from being deformed.
  • the third from the top The second contact sheet 74 of the heat generating member 70 is provided with a current-carrying terminal 78 for press-contacting to the second current-carrying terminal 77 of the second heat-generating member 70 from the top. It was made to accompany the installation work of Uzing 20.
  • the heater laminate 10 when the heater laminate 10 is formed, dedicated components and labor can be saved as compared with the case where the press-connecting current-carrying terminal 78 and the second current-carrying terminal 77 are press-contacted. That is, when the pressure-welding current-carrying terminal 78 and the second current-carrying terminal 77 are brought into pressure-contact with each other when the heater laminate 10 is formed, as shown in FIG. As shown in FIG. 18B, the pressure contact energizing terminal 78 is elastically deformed so that the distance between the second energizing terminal 77 and the first connection terminal 76 matches the distance between the terminal insertion holes 24 and 24. It is necessary to make it press contact. In the state shown in FIG.
  • the pressure contact energizing terminal 78 when the front housing 20 is mounted, the pressure contact energizing terminal 78 is deformed to be pressed, so that the pressure contact energizing terminal 78 is elastically deformed before the front housing 20 is mounted. Therefore, there is no need for dedicated parts and tools for this purpose, and the work is unnecessary, and the workability is excellent and the economy is also excellent.
  • the elastic deformation of the pressure contact energizing terminal 78 is performed by the elastic deformation in which the rising angle of the rising portion 78a is increased as described above, the pressure contact A state where the terminal 78 is pressed and a state where the terminal 78 is not pressed can be easily formed in the mounting work direction of the front housing 20, and the above-described effects of excellent workability and economy can be easily exhibited.
  • the pressing deformation protrusion 27 of the front housing 20 elastically deforms the pressing contact terminal 78, and the pressing contact terminal 78 presses against the second conduction terminal 77.
  • the pressure receiving protrusion 26 arranged along the upper surface of the second energizing terminal 78 receives the pressure contact. Press.
  • the pressure contact energizing terminal 78 is thinner than the other energizing terminals 76, 77, so that the operation of making the pressure contact energizing terminal 78 elastically deform and press contact is easily performed. be able to.
  • the cylindrical tube member 75 has the first plus and minus ones.
  • the heat generating member 70 in which the second contact sheets 73 and 74 and the PTC element 72 are inserted is used, and the necessary electrical contact of the PTC element 72 is performed in the heat generating member 70.
  • the radiating fin member 80 is prevented from coming off in the width direction (arrow FL direction) by a position regulating flange 50b formed on the support plate 50 shown in FIGS. 12A and 12B.
  • the heat generating member 70 is configured not to be provided with a flange that hinders the flow of air for heat exchange, as is done by the position regulating flanges 60a and 60a of the end plate 60 shown in 50c and FIGS. 13A and 13B.
  • the position restriction flanges 50b, 50c, 60a, etc. constitute a restriction mechanism.
  • the configuration that prevents the heat radiation fin member 80 from contacting the air flow is disposed at a position farthest from the heat generation member 70 that is a heat source in the heat radiation fin member 80.
  • the portion in contact with the heat generating member 70 that is a heat source does not obstruct this air flow.
  • the heat exchange efficiency of the radiating fin member 80 is improved as compared with the case where the flange for preventing the radiating fin member 80 from being removed is formed on the heat generating member 70 side.
  • the heater laminate 10 when the heater laminate 10 is formed, three heater units 40 formed by sandwiching one heat generating member 70 between a pair of radiating fin members 80 and 80 are stacked to form a heater. A laminated body 10 is formed. With this configuration, in each heater unit 40, the heat generated by one heat generating member 70 can be transmitted to the two heat radiating fin members 80 and 80 and efficiently radiated.
  • a force that requires a member (support plate 50) for supporting both units 40 between the two units 40 is used in the first embodiment.
  • the support plate 50 is effectively used to prevent the radiating fin member 80 from coming off, reducing the number of parts, assembling man-hours, and manufacturing costs compared to providing these functions separately. It is possible to reduce the weight and reduce the size.
  • the position restriction flanges 50b, 50c, 60a for restricting the movement of the radiating fin member 80 in the width direction are integrally formed on the support plate 50 and the end plate 60, respectively, in the first embodiment, Compared to providing separate means for these movements on these plates, it is possible to reduce the number of parts, reduce assembly man-hours, manufacturing costs, weight, and downsize.
  • the stubbing member 90 is attached to the heat generating member 70, the second energizing terminal 77 bent in an L-shape and the bent piece 77a of the energizing terminal 78 for press contact and the start-up.
  • the stopper surface 92a is disposed in contact with or close to the back surface of the portion 78a.
  • each contact play 73, 74 is thinner than each energizing terminal 76, 77. This is particularly effective in such a configuration, in which the thickness of the rising portion 78a of the contact terminal 78 for pressure welding is thin.
  • the position of the three heat generating members 70, 70, 70 on the front housing 20 side in the stacking direction (arrow LD direction) is positioned by the strobe member 90. It was made to be. For this reason, the distance between the current-carrying terminals 76 and 77 is also kept at a predetermined distance, and it is smooth to let the current-carrying terminals 76 and 77 pass through the terminal passage holes 24 and 25. Compared to the case where 90 is not provided, the front housing 20 can be mounted more smoothly.
  • the tube member 75 of the heat generating member 70 has a two-part structure of the male tube 75a and the female tube 75b, and is urged by being interposed between the tubes 75a and 75b.
  • the elastic member 79 has an insulating material force, and the first and second contact sheets 73 and 74 are brought into direct contact with both tubes 75a and 75b and interposed between at least one of them! / Abolished insulation.
  • the thickness of the heat generating member 70 and the electric heater device A can be reduced by suppressing the thickness of the heat generating member 70 (dimension L2 in FIG. 7).
  • the heat exchange efficiency can be improved by relatively increasing the size of the heat dissipation fin member 80.
  • first and second contact sheets 73 and 74 are brought into direct contact with both the tubes 75a and 75b, whereby the heat transfer performance can be improved and the energy efficiency can be improved.
  • connection energizing terminal 778 only the second energizing terminal 77 is inserted into the terminal through hole 25, so that the energizing terminal of the connection energizing terminal 778 has the same plate thickness as the other energizing terminals 76 and 77. And can be easily manufactured.
  • FIG. 19A and FIG. 19B show a second embodiment of the electric heater device according to the present invention.
  • the support plate 250 as a position restricting member is different from the support plate in the first embodiment in configuration.
  • the support plate 250 is located at both end edges in the width direction over the entire length in the longitudinal direction. It is formed by joining two members 251, 252 having regulating flanges 25 la, 252a.
  • the position restricting flanges 25la and 252a may be formed as a single plate over the entire length of the support plate 250.
  • the notch 251a, Forming 252b it is difficult to block the flow of air for heat exchange.
  • the members 251 and 252 can be formed of a single member, and the number of parts can be reduced.
  • the other configuration of the support plate 250 is the same as that of the support plate in the first embodiment, and therefore the description thereof is omitted.
  • the heater unit 40 is formed by stacking three stages as the heater stack 10 is shown, but a plurality of other than three stages such as two stages or four stages are stacked. It is possible to have a superposed configuration.
  • the force showing the position restricting flanges 50a, 50b, 60a formed integrally with the support plate 50 as the position restricting member and the end plate 60 is limited to this.
  • a separate member from the position restricting member may be bonded by bonding or other means.
  • the heat radiating fin member 80 is shown as the heat radiating member.
  • the member is not limited to such a fin structure member as long as it is a member having excellent stagnation characteristics. Absent.
  • the flat member (50, 60, 250) is shown as the position restricting member, but the shape is appropriately optimized depending on the shape of the heat radiating member. May be used. For example, it may be formed in a semi-cylindrical shape.
  • the first and second contact sheets 73 and 74 as electrodes are arranged in the heat generating member 70.
  • the present invention is similar to the prior art. , Radiation fin member 80, etc. It can also be applied to other configurations.
  • the long heat generating member 70 provided with the PTC element 72 that generates heat by energization as described above, the heat dissipating member 80 provided in contact with the heat generating member 70, the heat dissipating member 80,
  • An electric heater device comprising a pair of housing members 20 and 30 that support both end portions in the longitudinal direction of the heater laminate 10 formed by laminating the heat generating member 70, and sandwiching the heat radiating member 80 therebetween.
  • position restricting members 50, 60 attached at both ends to the end housing members 20, 30 so that movement in the width direction is restricted, and adjacent to the position restricting members 50, 60.
  • an electric heater device provided with a regulating mechanism 50b, 50c, 60a that regulates relative displacement of the heat dissipating member 80 in the width direction by a predetermined amount or more, thereby preventing the heat dissipating member from coming off in the width direction.
  • a regulating mechanism 50b, 50c, 60a that regulates relative displacement of the heat dissipating member 80 in the width direction by a predetermined amount or more, thereby preventing the heat dissipating member from coming off in the width direction.
  • it is efficiently regulated by the regulation mechanism.
  • one position restricting member restricts the displacement of the pair of heat dissipating members disposed adjacent to the position restricting member, thereby preventing the position preventing member from coming off. Therefore, the number of necessary position restricting members can be reduced and the number of parts can be reduced as compared with the case where each of the heat dissipating members is prevented from being detached using one position restricting member. This makes it possible to reduce the man-hours, manufacturing cost, weight, and size of the electric heater device.
  • the heat dissipating members are disposed adjacent to each other between the units, and a member that supports them is required.
  • the position restricting member also serves as this, It is possible to reduce the number of parts, and further reduce the man-hours, manufacturing cost, weight, and size of the electric heater device.
  • the position restricting flange formed by bending the both end edges in the width direction of the position restricting member formed of a single plate material is used to restrict the release of the heat radiating member, the position restricting member is a separate member.
  • the number of parts can be reduced as compared with the case where a restriction mechanism is attached. Therefore, it is possible to further reduce the man-hours, manufacturing cost, weight, and size of the electric heater device.
  • the present invention is described as applied to an electric heater device for a vehicle.
  • the present invention is not limited to such an embodiment, and is applied to, for example, an electric heater device for home use or factory use. be able to.
  • it can be applied to air conditioners in various fields as long as it can be used to regulate displacement in the width direction of a heat radiating member or heat generating member that radiates heat.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Direct Air Heating By Heater Or Combustion Gas (AREA)
  • Resistance Heating (AREA)

Abstract

L'invention concerne un dispositif de chauffage électrique formé en disposant des couches d'éléments de production de chaleur et d'éléments de rayonnement de chaleur les unes au-dessus des autres. Les éléments de production de chaleur présentent une grande longueur et possèdent des éléments CTP. Les éléments de rayonnement de chaleur sont prévus de façon à être en contact avec les éléments de production de chaleur. Une plaque de support (50) est prévue en travers d'un élément de rayonnement de chaleur depuis un élément de production de chaleur, et des brides de restriction de position (50b, 50c) sont formées sur la plaque de support (50). Les brides de restriction de position (50b, 50c) restreignent l'élément de production de chaleur adjacent pour l'empêcher d'être déplacé relativement latéralement d'une distance égale ou supérieure à un niveau prédéterminé.
PCT/JP2007/059171 2006-05-01 2007-04-27 Dispositif de chauffage électrique WO2007129608A1 (fr)

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JP2006127906A JP2007298241A (ja) 2006-05-01 2006-05-01 電気ヒータ装置
JP2006-127906 2006-05-01

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Cited By (9)

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EP2230112A1 (fr) * 2009-03-16 2010-09-22 Behr GmbH & Co. KG Système de climatisation pour véhicules
EP2395295B1 (fr) * 2010-06-11 2013-03-06 Behr GmbH & Co. KG Echangeur de chaleur
WO2018073530A1 (fr) * 2016-10-21 2018-04-26 Valeo Systemes Thermiques Dispositif de chauffage additionnel electrique
FR3062964A1 (fr) * 2017-02-14 2018-08-17 Valeo Systemes Thermiques Interface de connexion electrique d'un dispositif de chauffage electrique pour vehicule automobile
EP2151639B1 (fr) * 2008-08-07 2019-01-09 MAHLE Behr GmbH & Co. KG Caloporteur
FR3073039A1 (fr) * 2017-10-30 2019-05-03 Valeo Systemes Thermiques Plaque d'isolant electrique a reliefs de reception d'une electrode et de corps de chauffe pour module de chauffage de dispositif de chauffage pour vehicule automobile
FR3073036A1 (fr) * 2017-10-30 2019-05-03 Valeo Systemes Thermiques Tube pour dispositif de chauffage pour vehicule automobile a relief sur une paroi laterale
JP2021507197A (ja) * 2017-12-19 2021-02-22 ヴァレオ システム テルミク 電極ハウジングステーションを備えた電気加熱装置
WO2023227627A1 (fr) * 2022-05-24 2023-11-30 Valeo Systemes Thermiques Organe chauffant d'un corps de chauffe pour radiateur électrique comprenant deux éléments chauffants

Families Citing this family (3)

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CN101726100B (zh) * 2008-10-17 2012-06-27 宁波高博科技有限公司 具有加湿功能的取暖器
EP2428747B1 (fr) * 2010-09-13 2015-04-08 MAHLE Behr GmbH & Co. KG Echangeur de chaleur
KR102078194B1 (ko) * 2012-05-16 2020-02-19 한온시스템 주식회사 차량용 히터

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JPH1148758A (ja) * 1997-08-06 1999-02-23 Denso Corp 暖房用熱交換器
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Cited By (17)

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Publication number Priority date Publication date Assignee Title
EP2151639B1 (fr) * 2008-08-07 2019-01-09 MAHLE Behr GmbH & Co. KG Caloporteur
EP2230112A1 (fr) * 2009-03-16 2010-09-22 Behr GmbH & Co. KG Système de climatisation pour véhicules
EP2395295B1 (fr) * 2010-06-11 2013-03-06 Behr GmbH & Co. KG Echangeur de chaleur
US11214123B2 (en) 2016-10-21 2022-01-04 Valeo Systemes Thermiques Electric auxiliary heating device
WO2018073530A1 (fr) * 2016-10-21 2018-04-26 Valeo Systemes Thermiques Dispositif de chauffage additionnel electrique
FR3057817A1 (fr) * 2016-10-21 2018-04-27 Valeo Systemes Thermiques Dispositif de chauffage additionnel electrique
FR3062964A1 (fr) * 2017-02-14 2018-08-17 Valeo Systemes Thermiques Interface de connexion electrique d'un dispositif de chauffage electrique pour vehicule automobile
WO2018150125A1 (fr) * 2017-02-14 2018-08-23 Valeo Systemes Thermiques Interface de connexion électrique d'un dispositif de chauffage électrique pour véhicule automobile
US11512873B2 (en) 2017-02-14 2022-11-29 Valeo Systemes Thermiques Electrical connection interface of an electric heating device for a motor vehicle
FR3073036A1 (fr) * 2017-10-30 2019-05-03 Valeo Systemes Thermiques Tube pour dispositif de chauffage pour vehicule automobile a relief sur une paroi laterale
WO2019086802A1 (fr) * 2017-10-30 2019-05-09 Valeo Systemes Thermiques Plaque d'isolant electrique a reliefs de reception d'une electrode et de corps de chauffe pour module de chauffage de dispositif de chauffage pour vehicule automobile
FR3073039A1 (fr) * 2017-10-30 2019-05-03 Valeo Systemes Thermiques Plaque d'isolant electrique a reliefs de reception d'une electrode et de corps de chauffe pour module de chauffage de dispositif de chauffage pour vehicule automobile
JP2021507197A (ja) * 2017-12-19 2021-02-22 ヴァレオ システム テルミク 電極ハウジングステーションを備えた電気加熱装置
JP6999815B2 (ja) 2017-12-19 2022-02-10 ヴァレオ システム テルミク 電極ハウジングステーションを備えた電気加熱装置
US12092367B2 (en) 2017-12-19 2024-09-17 Valeo Systemes Thermiques Electric heating device with electrode housing station
WO2023227627A1 (fr) * 2022-05-24 2023-11-30 Valeo Systemes Thermiques Organe chauffant d'un corps de chauffe pour radiateur électrique comprenant deux éléments chauffants
FR3136141A1 (fr) * 2022-05-24 2023-12-01 Valeo Systemes Thermiques Organe chauffant d’un corps de chauffe pour radiateur électrique comprenant deux éléments chauffants.

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