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WO2016039132A1 - 流体用の配管装置 - Google Patents

流体用の配管装置 Download PDF

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Publication number
WO2016039132A1
WO2016039132A1 PCT/JP2015/073886 JP2015073886W WO2016039132A1 WO 2016039132 A1 WO2016039132 A1 WO 2016039132A1 JP 2015073886 W JP2015073886 W JP 2015073886W WO 2016039132 A1 WO2016039132 A1 WO 2016039132A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat transfer
transfer member
ptc element
fluid
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2015/073886
Other languages
English (en)
French (fr)
Inventor
剛 岡崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nifco Inc
Original Assignee
Nifco Inc
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 Nifco Inc filed Critical Nifco Inc
Priority to EP15839384.3A priority Critical patent/EP3193067B1/en
Priority to US15/510,121 priority patent/US10190715B2/en
Publication of WO2016039132A1 publication Critical patent/WO2016039132A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • F16L53/30—Heating of pipes or pipe systems
    • F16L53/34—Heating of pipes or pipe systems using electric, magnetic or electromagnetic fields, e.g. induction, dielectric or microwave heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10209—Fluid connections to the air intake system; their arrangement of pipes, valves or the like
    • F02M35/10222—Exhaust gas recirculation [EGR]; Positive crankcase ventilation [PCV]; Additional air admission, lubricant or fuel vapour admission
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • F16L53/30—Heating of pipes or pipe systems
    • F16L53/35—Ohmic-resistance heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F16L55/027—Throttle passages
    • F16L55/0279—The fluid flowing two or more times longitudinally in opposite directions, e.g. using parallel or concentric tubes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/02—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having positive temperature coefficient
    • 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
    • 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
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • 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
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/24—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor being self-supporting
    • 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
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
    • H05B3/28—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material
    • H05B3/286—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material the insulating material being an organic material, e.g. plastic
    • 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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • 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
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/42—Heating elements having the shape of rods or tubes non-flexible
    • H05B3/44—Heating elements having the shape of rods or tubes non-flexible heating conductor arranged within rods or tubes of insulating material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M2013/0455—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a de-icing or defrosting system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M2013/0472—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil using heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/001—Flow of fluid from conduits such as pipes, sleeves, tubes, with equal distribution of fluid flow over the evacuation surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • F16L53/30—Heating of pipes or pipe systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • F16L53/30—Heating of pipes or pipe systems
    • F16L53/35—Ohmic-resistance heating
    • F16L53/37—Ohmic-resistance heating the heating current flowing directly through the pipe to be heated
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/02—Heaters using heating elements having a positive temperature coefficient
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/021—Heaters specially adapted for heating liquids
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/022—Heaters specially adapted for heating gaseous material
    • 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
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to a fluid piping device that enables a fluid such as a gas or a liquid flowing in a passage in a tube to be heated by a heating member.
  • the target piping device is a heating attached to the pipe so that the pipe passage is not blocked by freezing of moisture in the blow-by gas. It is suitable for the case of heating by a member.
  • FIGS. 13A and 13B show an apparatus of Patent Document 1 as an example.
  • the apparatus shown in FIG. 1 includes a housing (corresponding to the pipe member of the present application) 26 that forms a passage through which fluid flows, a heating element (corresponding to the heating member of the present application) 16 that generates heat for heating, and a heating element.
  • the heating element 16 and the contact element 20 are fixed to the pipe segment 14 by the fixing element 22, and the fixing element 22, the heating element 16 and the pipe segment 14 are encased in a plastic housing 26.
  • the heating element 16 is a flat PTC element, and another contact element 20 is connected to each of the opposing electrode and the other electrode of the PTC element. Heat is generated when power is supplied to both electrodes.
  • Reference numeral 34 is a gasket element for sealing, and 28 and 30 are biasing springs that maintain contact between the contact element and the heating element.
  • the housing, the heating element, the pipe segment, the two contact elements, and the fixed element are essential, so the number of parts is large and it is difficult to reduce the cost.
  • the pipe segment which is a heat transfer member, is easily corroded because it is exposed to a fluid such as blow-by gas that is exposed in a part of the fluid passage and flows through the passage.
  • a gasket element is arranged in the fixed element to make it difficult for fluid such as blow-by gas flowing through the flow path to leak from a minute gap between the members, but the risk of leakage is completely eliminated. Is impossible.
  • the present invention aims to solve the above problems. Specifically, the apparatus is configured with fewer members, and the heat transfer member is corroded by the fluid flowing through the flow path, or the risk of fluid leakage from the gaps between the members is eliminated. Other purposes will be clarified in the description below.
  • the present invention provides a tube member that forms a flow path for flowing a fluid, a heating member that generates heat to heat the tube member, and a contact member that contacts the heating member.
  • a fluid comprising a metal heat transfer member that conducts heat, and a terminal member that enables the heating member and the heat transfer member to be electrically connected (in other words, enables electric power to be supplied to the heating member from the power source side).
  • the heat transfer member comprises a first heat transfer member and a second heat transfer member, and at least one of the first heat transfer member and the second heat transfer member includes the terminal member in part.
  • the first heat transfer member is formed on the tube member so as not to be exposed in the flow path of the tube member.
  • the above-mentioned present invention is preferably configured as described in (a) to (e) below.
  • the first heat transfer member is integrated with the tube member by insert molding.
  • the heating member is composed of a flat PTC (positive temperature coefficient) element, and the first heat transfer member and / or the second heat transfer member is formed in a flat portion at a portion in contact with the electrode of the PTC element. Has been.
  • the PTC element is sometimes called a semiconductor or an electronic ceramic heater.
  • C The PTC element is sandwiched between the first heat transfer member and the second heat transfer member, and is held in a state of being biased from the second heat transfer member side.
  • the first heat transfer member is provided in the cylindrical portion disposed in the axial direction of the tube member, the terminal member provided in a state where a part of the cylindrical portion is cut and raised, and the cylindrical portion. And a lateral slit extending in the axial direction, and a concavo-convex portion or a corrugated portion provided at an edge of the lateral slit (Claim 5).
  • the second heat transfer member includes a substrate portion disposed in a positioning space (gap or the like) provided in the tube member, the terminal member extended to the substrate portion, and the substrate portion. It has an elastic claw provided in a state where a part is cut and raised, and capable of pressing the substrate portion toward the PTC element.
  • the first heat transfer member since the first heat transfer member is integrated with the pipe member by insert molding, the number of assembling steps can be reduced, and as a result, the manufacturing cost can be reduced.
  • the first heat transfer member can be extended in the axial direction of the tube member, so that the wide area on the inner surface of the flow path can be efficiently warmed.
  • the heating member when the heating member is a flat PTC element, the PTC element is in surface contact with the flat portion of the first heat transfer member or the second heat transfer member.
  • the heat is efficiently transferred to those heat transfer members, and the heating efficiency can be improved.
  • the PTC element is sandwiched between the first heat transfer member and the second heat transfer member and is urged through the elastic claw on the second heat transfer member side. Since it is held, assemblability and holding characteristics can be improved.
  • the first heat transfer member has a terminal part provided in a state in which a part of the cylindrical part is cut and raised together with the cylindrical part arranged in the axial direction of the pipe member. Therefore, the number of parts can be reduced.
  • the contact area with the tube member is increased by the horizontal slits and the uneven portions and the corrugated portion provided in the tube portion, thereby increasing the coupling force. ing.
  • the present invention even after repeated contraction / expansion due to a difference in temperature and the like, cracks and cracks are hardly generated between the two members, and the life of the apparatus can be extended.
  • the second heat transfer member is disposed in the positioning space (gap or the like) provided in the tube member, and the terminal member extended to the substrate portion.
  • the number of parts can be reduced.
  • the substrate portion can be pressed toward the PTC element by the elastic claw, the PTC element can be held in a stable state.
  • the number of parts can be reduced.
  • the first heat transfer member is provided in the pipe member so as not to be exposed in the flow path of the pipe member, the first heat transfer member is not exposed to the fluid flowing through the passage, and the heat transfer member (the pipe of Reference 1 is used as in the past). The risk of corrosion of the segment) and the heating member connected thereto can be completely eliminated.
  • (A) is a perspective view which shows the piping apparatus for fluids of a 1st form
  • (b) is a schematic block diagram which shows the state which fractured
  • (A) is a block diagram showing a part of the piping device in a state before the plug member is mounted
  • (b) is a block diagram showing a part of the piping device in a state where the plug member is mounted. .
  • FIG. 6 is a cross-sectional view taken along line AA in FIG. (A) And (b) is the BB sectional view taken on the line of FIG.5 (b), and CC sectional view taken on the line.
  • A) And (b) is the DD sectional view taken on the line of FIG.5 (b), and the EE sectional view taken on the line.
  • A) is a perspective view which shows the piping apparatus for fluids of a 2nd form
  • (b) is a model block diagram for description shown in the state which removed the plug member. It is a disassembled block diagram which shows the relationship between the members of the piping apparatus of FIG.
  • FIG. 4 is the top view and front view which show the piping apparatus of FIG.
  • A) And (b) is the FF sectional view taken on the line of FIG.11 (b), and the GG sectional view.
  • A) And (b) is explanatory drawing corresponding to FIG. 4 and FIG.
  • FIGS. 1 (a) to 8 (b) and its operation or advantage the first embodiment shown in FIGS. 1 (a) to 8 (b) and its operation or advantage
  • FIGS. 9 (a) to 12 (b) and its operation or advantage Clarify in order of benefits.
  • the piping device 6 generates heat to heat the tube member 1 and the tube member 1 forming the fluid flow path 10.
  • the PTC element 5 that is a heating member
  • the first heat transfer member 2 and the second heat transfer member 3 that contact the PTC element 5 and transmit the heat of the PTC element 5 to the tube member 1, that is, the passage 10 side, and the power from the power source side Is formed of terminal members 22 and 32 that can supply the PTC element 5 to the PTC element 5.
  • the first heat transfer member 2 is integrated with the tube member 1 by insert molding, and the second heat transfer member 3 is assembled to the tube member 1 together with the PTC element 5.
  • Each of the first heat transfer member 2 and the second heat transfer member 3 is formed of a metal material such as copper having excellent heat transfer and conductivity.
  • the first heat transfer member 2 includes a cylindrical portion 20 disposed in the axial direction of the tube member 1, a flat portion 21 and a terminal member 22 provided on one end side of the cylindrical portion 20, and a cylindrical portion.
  • 20 includes a plurality of (four in this example) horizontal slits 26 provided on the other end side from the substantially middle of 20 and a corrugated portion or an uneven portion 27 provided on the opposite edge of the horizontal slit 26.
  • the flat part 21 is disposed downwardly in FIG. 3 by partitioning and raising a part of the cylindrical part 20 via a substantially U-shaped slit 23.
  • An electrode 5 a on one side of the PTC element 5 is in contact with the flat portion 21.
  • the terminal member 22 protrudes upward in FIG. 3 by partitioning a part of the cylindrical portion 20 through a substantially U-shaped slit 24 and cutting it up into an elongated piece.
  • Each horizontal slit 26 is provided at a location that equally divides the cylindrical portion 20.
  • the cylindrical portion 20 is divided into four pieces 28 by four lateral slits 26 from the substantially middle portion of the cylindrical portion to the other end.
  • a corrugated portion or a concavo-convex portion 27 is provided at the opposing edge portion of each piece portion 28.
  • the second heat transfer member 3 includes a substrate portion 30 incorporated in the tube member 1, a terminal member 32 extended to the substrate portion 30 via a horizontal connection portion 31, and the substrate portion 30.
  • An elastic claw 36 is provided in a state where a part thereof is cut and raised, and can press the substrate portion toward the PTC element 5 as will be described later.
  • the substrate portion 30 has a substantially rectangular shape, has a flat portion so as to come into surface contact with the PTC element 5, and is reinforced by bending both sides 33 and 34.
  • the substrate part 30 is provided with an elastic claw 36 at the center part.
  • the elastic claw 36 is provided in a state in which a part of the substrate portion 30 is partitioned by a substantially U-shaped slit 35 and the upper side is bent outward in FIG.
  • the pipe member 1 is a resin molded product in which the first heat transfer member 2 is inserted, and has a continuous flow path 10 for flowing a fluid from one to the other. That is, as shown in FIG. 3, the pipe member 1 projects the one side pipe part 11 and the other pipe part 12 on the same line on the left and right sides of the swelled main body 13 in the drawing.
  • the pipe member passage 10 is continuous with the one-side pipe portion 11, the main body 13, and the other-side pipe portion 12, and the resin includes the end face without exposing the first heat transfer member 2 as an insert product in the passage. It is divided and formed by the part.
  • the piping device 6 is connected to the target passage (for example, in the case of a probe gas passage structure, the probe gas is circulated to the engine side in the one side pipe portion 11 and the other side pipe portion 12.
  • the one passage portion 7 and the other passage portion 8 of the passage are connected when incorporated in a part of the intake passage).
  • one side pipe portion 11 is connected to the upstream or downstream side passage portion 7
  • the other side pipe passage 12 is connected to the downstream or upstream side passage portion 8.
  • the main body 13 is integrated with a pipe portion 14 defining a part of the passage 10 and an upper side of the pipe portion 14 in the figure.
  • the upper holding portion 15 and outer wall portions 17 and 17 provided on both sides of the pipe portion 14 via gaps 16a and 16b.
  • the upper side of the main body 13 is opened in a substantially rectangular shape to expose the gaps 16a and 16b.
  • a step 17 a is provided at the inner edge of the upper opening of the main body 13, and the plug member 4 is attached by welding or the like while being engaged with the step 17 a.
  • the tube portion 14 is integrated with the tubular portion 20 of the first heat transfer member 2 in a state where a part thereof is embedded in the wall thickness of the tube.
  • the upper holding portion 15 is in the main body 13 and extends in the same direction as the passage 10.
  • a base portion of the terminal member 22 of the first heat transfer member 2 is embedded, and a pedestal 15 b for seating the other terminal member 32 is provided.
  • Reference numeral 15 a denotes a pedestal portion that is integrated with the upper holding portion 15 and covers the base portion of the terminal member 22.
  • work is abbreviate
  • the second heat transfer member 3 is assembled to the tube member 1 together with the PTC element after the tube member 1 is formed.
  • a positioning space 18 and a holding recess 19 provided on the back side of the positioning space 18 are provided.
  • the second heat transfer member 3 is held in the positioning space 18.
  • a circular flat PTC element 5 is held in the holding recess 19. That is, first, the PTC element 5 is fitted and held in the holding recess 19 in a state where one surface is in contact with the outer surface of the flat portion 21 of the first heat transfer member 2. Thereafter, the second heat transfer member 3 is fitted into the positioning space 18 by pressing the substrate portion 30 downward from the upper side in the figure, and the elastic pawl 36 as shown in FIG. It is elastically held by being urged by.
  • the PTC element 5 is, for example, a semiconductor ceramic mainly composed of barium titanate or the like, and includes electrodes 5a and 5b provided on the opposing surfaces, respectively.
  • the electrodes 5a and 5b are made of silver or the like excellent in conductivity and heat transfer.
  • the heating member of the present invention may be other than the PTC element 5, and a known planar heating element may be used.
  • the plug member 4 includes a flange-like plate portion 40 that closes the upper opening of the main body 13, and a step 17 a at the inner edge of the main body 13 provided on the lower surface of the plate portion 40.
  • the plug member 4 is a member for connecting a power supply side connector or the like.
  • the terminal member 22 described above is penetrated from the one insertion hole 46 to the inside 43 of the trunk portion, and The terminal member 32 thus made is penetrated from the other insertion hole 47 into the inside 43 of the trunk portion.
  • the frame portion 41 is fitted to the main body side step 17a and is integrally attached to the main body 13 side by welding or the like.
  • the piping device 6 described above is superior to the conventional structure as in Patent Document 1 in the following points.
  • the piping device 6 according to the first embodiment has a structure composed of a pipe member 1, a metal first heat transfer member 2 and a second heat transfer member 3, a heating member 5, and terminal members 22 and 32. Since the heat transfer member 2 and the second heat transfer member 3 partially form the terminal members 22 and 32, not only the number of parts can be reduced, but also the assembly can be simplified.
  • the first heat transfer member 2 Since the first heat transfer member 2 is integrated with the pipe member by insert molding so as not to be exposed in the flow path 10 of the pipe member 1, the first heat transfer member 2 does not touch the fluid flowing through the passage 10.
  • This advantage can completely eliminate the possibility of corrosion of the heat transfer member (the pipe segment of Reference 1) and the heating members 2 and 3 connected to the heat transfer member as in the prior art. By extending in the axial direction, the wide range of the flow path 10 can be efficiently warmed.
  • the 1st heat-transfer member 2 is divided
  • the contact area with the resin portion forming the tube member 1 is increased, and the coupling force to the tube member 1 is sufficient. To be obtained.
  • this embodiment even after repeated contraction / expansion due to differences in temperature and the like, cracks and cracks are unlikely to occur between the two members, thereby extending the life of the apparatus.
  • the second heat transfer member 3 bends the substrate portion 30 and the horizontal connecting portion 31 at a substantially right angle, and bends the horizontal connecting portion 31 and the terminal member 32 at a substantially right angle. Then, in the assembled state in the tube member 1, as shown in FIG. 4B, the base plate portion 30 is press-fitted into the positioning space 18 so as not to swing, and the horizontal connecting portion 31 is provided on the upper holding portion 15. Retained. These eliminate the possibility that an external force is applied to the second heat transfer member 3 from above or the second heat transfer member 3 is inadvertently brought into contact with the first heat transfer member 2 and short-circuited during assembly work. It was devised as a countermeasure. Further, the second heat transfer member 3 is provided with a projection 37 formed by a half punch or the like on the upper portion of the slit 35 as shown in FIG. The upward movement of the PTC element 5 is restricted by the protrusion 37.
  • the piping device 6 uses the flat PTC element 5 as a heating member, makes the electrode 5a of the PTC element 5 come into surface contact with the first heat transfer member side flat portion 21, and the other side. Since the electrode 5b is in surface contact with the second heat transfer member side substrate portion 30, electrical connection can be made reliably, and at the same time, the heat of the PTC element 5 is efficiently transferred to the heat transfer members 2 and 3 and pulled. Can improve the heating efficiency.
  • the piping device 6A generates a heat for heating the tube member 9 and the tube member 9 forming the fluid flow path 90.
  • the PTC element 5A that is a heating member
  • the first heat transfer member 2A and the second heat transfer member 3A that contact the PTC element 5A and transfer the heat of the PTC element 5A to the tube member 9, that is, the passage 90 side
  • the power from the power source side Is the same as that of the first embodiment in that it includes terminal members 22 and 33 that can supply the PTC element 5A to the PTC element 5A.
  • the change is an example in which, after the tube member 9 is molded, the first heat transfer member 2A, the second heat transfer member 3A, and the PTC element 5A are assembled to the tube member 9.
  • FIGS. 9A to 12B the same or similar parts as those in the first embodiment are denoted by the same reference numerals.
  • the tube member 9 is an injection-molded resin molded product, and includes a tube portion 91 disposed in a main body 94 bulging as shown in FIG. 10, a one-side tube portion 92 protruding from the left and right of the main body 94, and the other
  • the pipe portion 93 is provided on the same line as the coaxial line, and a continuous flow path 90 is formed by the pipe portions 91 to 93 for flowing fluid from one to the other.
  • the main body 94 has a pipe part 91 that defines a part of the passage 10 as shown in FIGS. 10 and 12A and 12B, and gaps 96a and 96b on both sides of the pipe part 91. And outer wall portions 97, 97 provided therethrough. Further, the upper side of the main body 94 in the figure is opened in a substantially rectangular shape to expose the gaps 96a and 96b. A step 97a is provided at the inner edge of the upper opening of the main body 94, and the plug member 4A is attached by welding or the like while being engaged with the step 97a.
  • the one-side pipe portion 92 and the other-side pipe portion 93 are provided with the piping device 6A as a target passage (for example, in the case of a probe gas passage structure, When it is incorporated in a part of the intake passage that circulates the probe gas to the engine side), the one passage portion 7 and the other passage portion 8 of the passage are connected.
  • the one-side pipe portion 92 is connected to the upstream or downstream-side passage portion 7, and the other-side pipe passage 93 is connected to the downstream or upstream-side passage portion 8.
  • the first heat transfer member 2A and the second heat transfer member 3B are each formed of a metal material such as copper having excellent heat transfer and electrical conductivity.
  • the first heat transfer member 2 ⁇ / b> A includes a semi-cylindrical portion 20 disposed so as to cover the outer periphery of the tube portion 91 in the main body, and a flat portion provided at a lower portion on one side of the semi-cylindrical portion 20. 21, a terminal member 22 provided on one end in the longitudinal direction of the half-cylinder part 20 via a slit 24, and a plurality (two in this example) of elastic claws provided on the lower part on the other side of the half-cylinder part 20 29.
  • the half cylinder part 20 is arranged so that the inner surface of the cylinder overlaps the outer surface of the pipe part 91 in a state where the half cylinder part 20 is inserted into the gaps 96a and 96b.
  • the flat portion 21 is in contact with the electrode 5a on one side of the PTC element 5A.
  • the terminal member 22 is located on one end side in the longitudinal direction of the half-cylinder portion 20, is partitioned through an arc-shaped slit 24, and protrudes upward in the figure by cutting up into an elongated piece.
  • the elastic claw 29 is elastically locked to the inner surface of the corresponding outer wall portion 97 in the gap 96 in a state where the half cylinder portion 20 is superimposed on the tube portion 91 as inferred from FIG.
  • the heat transfer member 2A can be restrained in the main body 94.
  • the second heat transfer member 3 ⁇ / b> A includes a substrate part 30 that is incorporated into the gap 96 b of the main body, a terminal member 32 that is extended from a part of the substrate part 30 via the horizontal connection part 31, It has a plurality of (two in this example) elastic claws 38 that are provided in a state in which a part of the substrate portion 30 is cut and raised and can press the substrate portion toward the PTC element 5A.
  • the substrate portion 30 has a substantially rectangular shape that is substantially the same size as the flat portion 21, can be brought into surface contact with the PTC element 5 ⁇ / b> A, and the electrode 5 b of the PTC element comes into contact therewith.
  • Each elastic claw 38 is provided in a state where a part of the substrate portion 30 is partitioned by a substantially U-shaped slit 37 and the upper side in the figure is bent outward.
  • the second heat transfer member 3A is incorporated into the main body 94 together with the PTC element 5A.
  • the PTC element 5A is a rectangular plate-shaped semiconductor ceramic whose main material is barium titanate or the like, and has electrodes 5a and 5b provided on opposing surfaces, respectively.
  • the electrodes 5a and 5b are made of silver or the like excellent in conductivity and heat transfer.
  • each member is as follows. From the state in which the first heat transfer member 2A is restrained and held by the main body 94, the PTC element 5A is inserted into the gap 96b and brought into surface contact with the flat portion 21, and then the second The substrate portion 30 of the heat transfer member is pushed between the PTC element 5A and the corresponding outer wall portion 97. Then, the second heat transfer member 3A is fitted by the substrate portion 30 being pushed downward between the PTC element 5A and the corresponding outer wall portion 97, and the elastic claw 38 as shown in FIG. And is elastically held while being biased toward the PTC element 5A.
  • the PTC element 5A is positioned and arranged on the flat surface portion 21 with respect to the first heat transfer member 2A, and the second heat transfer member 3A is placed on the PTC element 5A.
  • the substrate portion 30 is positioned and arranged, that is, the first heat transfer member 2A, the PTC element 5A, and the second heat transfer member 3A are related to each other, they may be pushed into the main body 94.
  • the first heat transfer member 2A is constrained and held in the main body 94 via the plurality of elastic claws 29 on the half tube portion side, and at the same time, the second heat transfer member 3A is moved to the substrate portion.
  • the PTC element 5A is restrained and held in the main body 94 via the plurality of elastic claws 38 on the side.
  • the PTC element 5 ⁇ / b> A is sandwiched between the flat surface portion 21 and the substrate portion 30 with a predetermined pressure.
  • the plug member 4 ⁇ / b> A includes a flange-like plate portion 40 that closes the upper opening of the main body 94, and a frame that is provided on the lower surface of the plate portion 40 and that is engaged with a step 97 a at the inner edge of the main body 94.
  • Two insertion holes 46 and 47 see FIG. 11A).
  • the plug member 4A is a member for connecting a power supply side connector or the like.
  • the terminal member 22 described above is penetrated from the one insertion hole 46 to the inside 43 of the trunk portion,
  • the terminal member 32 thus made is penetrated from the other insertion hole 47 into the inside 43 of the trunk portion.
  • the frame portion 41 is fitted to the main body side step 97a and is integrally attached to the main body 13 side by welding or the like.
  • the piping device 6A described above is also superior to the conventional structure as in Patent Document 1 in the following points.
  • the piping device 6A of the second form is composed of a pipe member 9, a metal first heat transfer member 2A and a second heat transfer member 3A, a PTC element 5A as a heating member, and terminal members 22 and 32.
  • the first heat transfer member 2A and the second heat transfer member 3A form the terminal members 22 and 32 in part, not only the number of parts can be reduced, but also the assembly can be simplified.
  • the first heat transfer member 2A, the second heat transfer member 3A, and the PTC element 5A can be easily assembled in the main body 94 of the tube member 9, and the main body is not exposed to the flow path 90. Since it is assembled into the fluid passage 94, it will not touch the fluid flowing through the passage 90. This advantage can completely eliminate the possibility of corrosion of the heat transfer member (pipe segment of Document 1) and the heating members 2A and 3A connected thereto as in the prior art.
  • the PTC element 5A is the same as the first embodiment in that the PTC element 5A is arranged in the main body 41 of the tube member. However, the PTC element 5A is in surface contact with the PTC element 5A in order to incorporate the first heat transfer member 2A into the main body 94 after molding. As a result, it is possible to use a relatively large PTC element 5A as in this example.
  • the second heat transfer member 3A bends the substrate portion 30 and the horizontal connection portion 31 at substantially right angles, and bends the horizontal connection portion 31 and the terminal members 32 at substantially right angles. Then, in the assembled state in the tube member 9, the substrate portion 30 is press-fitted and held through the elastic claw 38 so as not to swing as shown in FIG.
  • the substrate portion 30 of the second heat transfer member is provided with a portion such as the projection 37 of the first form, and the upward movement of the PTC element 5A is reliably regulated by the projection 37. You may do it.
  • the piping device 6A uses a flat PTC element 5A as a heating member, makes the electrode 5a of the PTC element 5 come into surface contact with the first heat transfer member side plane portion 21, and the other side. Since the electrode 5b is brought into surface contact with the second heat transfer member side substrate portion 30, electrical connection can be made reliably, and at the same time, the heat of the PTC element 5A is efficiently transferred to the heat transfer members 2A and 3A and pulled. Can improve the heating efficiency.
  • both the first heat transfer member 2 and the second heat transfer member 3 are integrated with the tube member 1 by insert molding, and each of the first and second heat transfer members 2 and 3 and the PTC element are integrated. 5 may be integrated with the pipe member 1 by insert molding.
  • the application is not limited to the blow-by gas passage structure, and when it is desired to heat a fluid such as gas or liquid flowing in the pipe passage, it is appropriately incorporated into a part of the piping system.
  • Piping device 6A Piping device 7 ... Piping 8 ... Piping 9 ...
  • Pipe member (90 is a passage, 91-93 is a pipe part, 94 is a body) 21... Planar portion 22... Terminal member 32... Terminal member
  • the specification, claims, drawings and abstract of Japanese Patent Application No. 2014-183758 filed on September 10, 2014 The entire contents of this document are hereby incorporated by reference as the disclosure of the specification of the present invention.

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Abstract

　流体を流す流路を形成している管部材と、管部材を加熱するため熱を発生させる加熱部材と、加熱部材と当接して管部材に熱を伝える金属製伝熱部材と、加熱部材と伝熱部材を電気的に接続可能にする端子部材とを備えた流体用の配管装置であって、伝熱部材は第一伝熱部材及び第二伝熱部材からなり、前記第一伝熱部材及び第二伝熱部材の少なくとも一方は前記端子部材を一部に形成しているとともに、前記第一伝熱部材は前記管部材の流路内に露出しないよう該管部材に設けられている。

Description

流体用の配管装置
　本発明は、管内通路を流れる気体や液体等の流体を加熱部材で加温可能にする流体用の配管装置に関する。
　対象の配管装置は、例えば、エンジンのブローバイガス（未燃焼ガス）を吸気通路を通してエンジンに環流させるブローバイガス通路構造において、管内通路がブローバイガス中の水分の凍結で閉塞しないよう配管に付設した加熱部材により加温する場合などに好適なものである。図１３（ａ）と（ｂ）はその一例として特許文献１の装置を示している。
　同図の装置は、流体を流す通路を形成しているハウジング（本願の管部材に対応）２６と、加熱するための熱を発生させる加熱エレメント（本願の加熱部材に対応）１６と、加熱エレメント１６と当接して熱を通路側に伝えるパイプセグメント（本願の伝熱部材に対応）１４と、加熱エレメント１６と電気的に接続する一対の接触エレメント（本願の端子部材に対応）２０とを備えたタイプである。
　これらの部材は、加熱エレメント１６及び接触エレメント２０が固定エレメント２２によってパイプセグメント１４に固定され、かつ、固定エレメント２２と加熱エレメント１６及びパイプセグメント１４がプラスチック製のハウジング２６内に包み込まれている。また、加熱エレメント１６は、平板状のＰＴＣ素子が用いられ、ＰＴＣ素子の対向する一方電極と他方電極にそれぞれ別の接触エレメント２０が接続され、電気的な差し込み接続装置１８から各接触エレメント２０を通して両電極に電力が供給されることにより発熱する。符号３４はシール用のガスケットエレメント、２８と３０は接触エレメントと加熱エレメントとの接触を維持する付勢ばねである。
独国特許出願公開第１０２０１２０１４７４６号明細書
　上記した構造では、少なくともハウジング、加熱エレメント、パイプセグメント、２つの接触エレメント、固定エレメントを必須としているため部品点数が多く、コスト低減が難しかった。また、伝熱部材であるパイプセグメントは、流体用通路の一部に露出されて通路を流れるブローバイガス等の流体に晒されるため腐食し易い。更に、この構造では、固定エレメント内にガスケットエレメントを配置して、流路を流れるブローバイガス等の流体が部材間の微細な隙間から漏れに難くしているが、漏れの虞を完全に無くすことは不可能である。
　本発明は、以上の様な課題を解決することを目的としている。具体的には、より少ない部材で装置を構成すると共に、伝熱部材が流路を流れる流体で腐食されたり、部材間の隙間から流体の漏れの虞をなくすことにある。他の目的は以下の内容説明のなかで明らかにする。
　上記目的を達成するため本発明は、流体を流す流路を形成している管部材と、前記管部材を加熱するため熱を発生させる加熱部材と、前記加熱部材と当接して前記管部材に熱を伝える金属製伝熱部材と、前記加熱部材と伝熱部材を電気的に接続可能にする（換言すると、電源側より電力を前記加熱部材に供給可能にする）端子部材とを備えた流体用の配管装置であって、前記伝熱部材は第一伝熱部材及び第二伝熱部材からなり、前記第一伝熱部材及び第二伝熱部材の少なくとも一方は前記端子部材を一部に形成しているとともに、前記第一伝熱部材は前記管部材の流路内に露出しないよう該管部材に設けられていることを特徴としている。
　以上の本発明は、下記（イ）乃至（ホ）に記載したように構成されることが好ましい。すなわち、（イ）前記第一伝熱部材は前記管部材にインサート成形により一体化されている。（ロ）前記加熱部材は平板状のＰＴＣ（positive temperature coefficient）素子からなるとともに、前記第一伝熱部材及び／又は第二伝熱部材は前記ＰＴＣ素子の電極と当接する部分が平面部に形成されている。なお、ＰＴＣ素子は、半導体や電子セラミックヒータと称されることもある。（ハ）前記ＰＴＣ素子は、前記第一伝熱部材と第二伝熱部材とで挟持され、かつ前記第二伝熱部材側から付勢された状態で保持されている。（ニ）前記第一伝熱部材は、前記管部材の軸線方向に配置される筒部と、前記筒部の一部を切り起こした状態に設けられた前記端子部材と、前記筒部に設けられて軸線方向に延びる横スリットと、前記横スリットの縁部に設けられた凹凸部ないしは波状部とを有している構成である（請求項５）。（ホ）前記第二伝熱部材は、前記管部材に設けられた位置決め空間（隙間等）に配置される基板部と、前記基板部に延長形成されている前記端子部材と、前記基板部の一部を切り起こした状態に設けられて該基板部を前記ＰＴＣ素子側へ押圧可能な弾性爪とを有している。
　上記（イ）に記載の好ましい態様では、第一伝熱部材が管部材にインサート成形により一体化されているため、組立工数を減らすことができ、その結果、製造費を低減できる。加えて第一伝熱部材を管部材の軸方向に延ばしてより流路内面の広範囲を効率よく暖めることができる。
　上記（ロ）に記載の好ましい態様では、加熱部材が平板状のＰＴＣ素子からなる場合、ＰＴＣ素子が第一伝熱部材や第二伝熱部材の平面部に面接触していると、ＰＴＣ素子の熱がそれらの伝熱部材に効率よく伝達し、引いては加温効率を向上できる。
　上記（ハ）に記載の好ましい態様では、ＰＴＣ素子が第一伝熱部材と第二伝熱部材とで挟持され、かつ第二伝熱部材側の弾性爪などを介して付勢された状態で保持されているため組立性及び保持特性を向上できる。
　上記（二）に記載の好ましい態様では、まず、第一伝熱部材が管部材の軸線方向に配置される筒部と共に、筒部の一部を切り起こした状態に設けられた端子部材を有しているため部品数を削減できる。加えて、第一伝熱部材を管部材にインサート成形によって一体化していても、筒部に設けられた横スリット及び凹凸部や波状部により管部材との接触面積を増やして結合力を大きくしている。その結果、この発明では、寒暖差などで収縮／膨張を繰り返した後も両部材の間にヒビやクラックを生じ難く、引いては装置寿命を長くできる。
　上記（ホ）に記載の好ましい態様では、まず、第二伝熱部材が管部材に設けられた位置決め空間（隙間等）に配置される基板部と、その基板部に延長形成されている端子部材を有しているため部品数を削減できる。加えて、基板部が弾性爪によりＰＴＣ素子側へ押圧可能なためＰＴＣ素子を安定した状態に保持できる。
　本発明では、管部材、加熱部材、金属製の第一伝熱部材及び第二伝熱部材、端子部材とからなる構造で、第一伝熱部材及び第二伝熱部材の少なくとも一方が端子部材を一部に形成しているため部品点数を削減できる。また、第一伝熱部材は、管部材の流路内に露出しないよう該管部材に設けられているため、通路を流れる流体に触れることがなくなり従来の様に伝熱部材（文献１のパイプセグメント）やそれに接続される加熱部材の腐食の虞を完全に解消できる。
（ａ）は第１形態の流体用配管装置を示す斜視図、（ｂ）は配管装置の第一伝熱部材を残して管部材を半体ほど破断した状態で示す模式構成図である。 上記配管装置の部材同士の関係を示す分解構成図である。 上記配管装置を構成している第一伝熱部材単品を示す斜視図である。 （ａ）は上記配管装置をプラグ部材の装着前状態で一部を破断して示す構成図、（ｂ）は上記配管装置をプラグ部材の装着状態で一部を破断して示す構成図である。 （ａ）と（ｂ）は上記配管装置を示す上面図と正面図である。 図５（ａ）のＡ－Ａ線断面図である。 （ａ）と（ｂ）は図５（ｂ）のＢ－Ｂ線断面図とＣ－Ｃ線断面図である。 （ａ）と（ｂ）は図５（ｂ）のＤ－Ｄ線断面図とＥ－Ｅ線断面図である。 （ａ）は第２形態の流体用配管装置を示す斜視図、（ｂ）はプラグ部材を外した状態で示す説明用の模式構成図である。 図９の配管装置の部材同士の関係を示す分解構成図である。 （ａ）と（ｂ）は図９の配管装置を示す上面図と正面図である。 （ａ）と（ｂ）は図１１（ｂ）のＦ－Ｆ線断面図とＧ－Ｇ線断面図である。 （ａ）と（ｂ）は特許文献１の図４と図７に対応する説明図である。
　本発明の最適な形態例を添付図面を参照しながら説明する。この説明では、図１（ａ）～図８（ｂ）に示された第１形態及びその作動ないしは利点、図９（ａ）～図１２（ｂ）に示された第２形態及びその作動ないしは利点の順に明らかにする。
（第１形態）図１（ａ）～図８（ｂ）において、配管装置６は、流体用の流路１０を形成している管部材１と、管部材１を加熱するため熱を発生させる加熱部材であるＰＴＣ素子５と、ＰＴＣ素子５と当接してＰＴＣ素子５の熱を管部材１つまり通路１０側に伝える第一伝熱部材２及び第二伝熱部材３と、電源側より電力をＰＴＣ素子５に供給可能にする端子部材２２，３２とからなる。
　また、この配管装置６では、第一伝熱部材２が管部材１にインサート成形により一体化されるとともに、第二伝熱部材３が管部材１にＰＴＣ素子５と共に組み付け作業される。第一伝熱部材２及び第二伝熱部材３は、何れもが伝熱・電導性に優れた銅等の金属材により形成されている。以下の説明では、第一伝熱部材２及び第二伝熱部材３を明らかにした後、管部材１の細部について述べる。
　第一伝熱部材２は、図３に示されるごとく管部材１の軸線方向に配置される筒部２０と、筒部２０の一端側に設けられた平面部２１及び端子部材２２と、筒部２０の略中間から他端側に設けられている複数（この例では４つ）の横スリット２６及び横スリット２６の対向縁部に設けられた波状部ないしは凹凸部２７とを有している。
　平面部２１は、筒部２０の一部を略Ｕ字形のスリット２３を介して区画し、かつ切り起こすことで、図３において下向きに配置されている。平面部２１には、ＰＴＣ素子５の片面側の電極５ａが接触する。端子部材２２は、筒部２０の一部を略Ｕ字形のスリット２４を介して区画し、かつ細長い片状に切り起こすことで、図３において上向きに突出されている。各横スリット２６は、筒部２０を等分する箇所に設けられている。図示の例では、筒部２０が４つの横スリット２６により、筒部略中間から他端までを４つの片部２８に分割されている。各片部２８の対向縁部には波状部ないしは凹凸部２７が設けられている。
　第二伝熱部材３は、図２に示されるごとく管部材１に組み込まれる基板部３０と、基板部３０に水平連結部３１を介して延長形成されている端子部材３２と、基板部３０の一部を切り起こした状態に設けられて、後述するように該基板部をＰＴＣ素子５側へ押圧可能な弾性爪３６とを有している。基板部３０は、略矩形状であり、ＰＴＣ素子５に面接触するよう平面部を有しているとともに、両側３３，３４を折り曲げることで強度が補強されている。基板部３０には弾性爪３６が中央部に設けられている。この弾性爪３６は、基板部３０の一部を略Ｕ字形のスリット３５により区画し、かつ図２において上側を外側へ折り曲げた状態に設けられている。
　これに対し、管部材１は、第一伝熱部材２をインサートした樹脂成形品であり、一方から他方へ流体を流す連続した流路１０を有している。すなわち、図３に示すように、この管部材１は、膨出した本体１３の図上左右に一方側管部１１と他方管部１２とを同軸線上に突出している。管部材の通路１０は、一方側管部１１、本体１３、他方側管部１２で連続しているとともに、インサート品である第一伝熱部材２を通路内に露出することなく端面も含め樹脂部で区画形成されている。
　一方側管部１１及び他方側管部１２には、図６に示されるごとく配管装置６を目的の通路（この通路としては、例えば、プローバイガス通路構造の場合であれば、プローバイガスをエンジン側に環流させる吸気通路となる）の一部に組み込む際に該通路の一方通路部７と、他方通路部８とが連結される。この例では、前記通路のうち、上流又は下流側の通路部７に一方側管部１１が連結され、下流又は上流側の通路部８に他方側管路１２が連結される。
　本体１３は、図７（ｂ）及び図８（ａ）（ｂ）に示されるごとく通路１０の一部を区画している管部分１４と、管部分１４の図上上側に一体化されている上保持部１５と、管部分１４の両側に隙間１６ａ，１６ｂを介して設けられた外壁部１７，１７とで構成されている。また、図２（ｂ）に示されるごとく、本体１３の上側は、略矩形に開口されて、隙間１６ａ，１６ｂを露出している。本体１３の上側開口には、段差１７ａが内側縁部に設けられ、プラグ部材４がその段差１７ａに係合された状態で溶着等により取り付けられる。
　管部分１４には、第一伝熱部材２の筒部２０が一部を管の肉厚内に埋設した状態で一体化されている。上保持部１５は、図２に示されるごとく本体１３内にあって通路１０と同じ方向に延設されている。上保持部１５には、第一伝熱部材２の端子部材２２の基部が埋設され、また、もう一方の端子部材３２を着座させるための台座１５ｂが設けられている。符号１５ａは上保持部１５に一体化されて端子部材２２の基部を被覆している台座部分である。なお、この構造において、第一伝熱部材２は、本体１３及び管路１２にインサート成形されているため組み付け作業が省略される。しかし、第二伝熱部材３は、管部材１の成形後に管部材１にＰＴＣ素子と共に組み付け作業される。
　上記隙間１６ｂには、図４（ａ）に示されるごとく位置決め空間１８と、位置決め空間１８の奥側に設けられた保持凹所１９とが設けられている。位置決め空間１８には第二伝熱部材３が保持される。保持凹所１９には円形平板状のＰＴＣ素子５が保持される。すなわち、まず、ＰＴＣ素子５は、片面が第一伝熱部材２の平面部２１の外面に当接した状態で保持凹所１９に嵌合保持される。その後、第二伝熱部材３は、位置決め空間１８に対し基板部３０が図上上側から下向きに押入することで嵌合され、かつ、図８（ｂ）のごとく弾性爪３６によりＰＴＣ素子５側に付勢されることで弾性保持される。
　ここで、ＰＴＣ素子５は、例えば、チタン酸バリウムなどを主材料とする半導体セラミックであり、対向面にそれぞれ設けられた電極５ａ，５ｂを有している。電極５ａ，５ｂは電導・伝熱に優れた銀等により形成されている。但し、本発明の加熱部材は、ＰＴＣ素子５以外であってもよく、公知の面状発熱体を用いるようにしてもよい。
　プラグ部材４は、図８（ａ）（ｂ）に示されるごとく本体１３の上側開口を塞ぐフランジ状の板部４０と、板部４０の下面に設けられて本体１３の内側縁部の段差１７ａに係合される枠部４１と、板部４０の上面に突設された矩形の胴部４２と、胴部の底面４４に下設された突出部４５と、突出部４５に設けられて上下に貫通している２つの差込孔４６，４７とを有している。
　すなわち、このプラグ部材４は、電源側のコネクター等を接続する部材であり、本体１３に装着する場合、上記した端子部材２２を一方の差込孔４６から胴部の内部４３に貫通させ、上記した端子部材３２を他方の差込孔４７から胴部の内部４３に貫通させる。その後、枠部４１を本体側段差１７ａに嵌合するとともに、本体１３側に溶着等により一体的に取り付けられる。
（利点）以上の配管装置６は、特許文献１のような従来構造に比べ次の点で優れている。
（１）第１形態の配管装置６は、管部材１、金属製の第一伝熱部材２及び第二伝熱部材３、加熱部材５、端子部材２２，３２とからなる構造で、第一伝熱部材２及び第二伝熱部材３が端子部材２２，３２を一部に形成しているため部品点数を削減できるだけではなく、組立も簡略化できる。
（２）また、第一伝熱部材２は、管部材１の流路１０内に露出しないよう該管部材にインサート成形により一体化されているため、通路１０を流れる流体に触れることがなくなる。この利点は、従来の様に伝熱部材（文献１のパイプセグメント）やそれに接続される加熱部材２，３の腐食の虞を完全に解消でき、しかも第一伝熱部材２を管部材１の軸方向に延ばしてより流路１０の広範囲を効率よく暖めることができる。
（３）また、第一伝熱部材２は、インサート箇所である筒部２０の略中間から他端までが横スリット２６により複数の片部２８に分割され、かつ、各片部２８の縁部には波状部ないしは凹凸部２７を形成している。これらの構成は、第一伝熱部材２を管部材１にインサート成形によって一体化した場合、管部材１を形成している樹脂部との接触面積を増やして管部材１に対する結合力が充分に得られるようにする。その結果、この形態では、寒暖差などで収縮／膨張を繰り返した後も両部材の間にヒビやクラックを生じ難く、引いては装置寿命を長くできる。
（４）また、第二伝熱部材３は、基板部３０と水平連結部３１とを略直角に屈曲し、水平連結部３１と端子部材３２とを略直角に屈曲している。そして、管部材１への組み込み状態では、図４（ｂ）に示されるごとく基板部３０が位置決め空間１８に揺動不能に圧入され、水平連結部３１が上保持部１５に設けられた台座１５ｂに保持される。これらは、第二伝熱部材３に対し上方から外力が加わったり、組み込み作業時に第二伝熱部材３が第一伝熱部材２に不用意に接触して短絡する、等の虞をなくする対策として工夫されたものである。また、第二伝熱部材３には、図８（ｂ）に示されるごとくスリット３５の上側部分にハーフパンチ等で形成された突起３７が設けられている。ＰＴＣ素子５は、その突起３７により上方向への移動が規制されるようになっている。
（５）また、配管装置６は、加熱部材として平板状のＰＴＣ素子５を使用するとともに、ＰＴＣ素子５の電極５ａを第一伝熱部材側平面部２１に面接触させ、かつ、もう一方の電極５ｂを第二伝熱部材側基板部３０に面接触させているため、電気的な接続が確実に可能となり、同時にＰＴＣ素子５の熱が伝熱部材２や３に効率よく伝達し、引いては加温効率を向上できる。
（６）同時に、この構造では、図８（ａ）（ｂ）に示されるごとくＰＴＣ素子５が第一伝熱部材２の平面部２１と第二伝熱部材３の基板部３０とで挟持され、かつ、第二伝熱部材３の弾性爪３６を介して付勢された状態で保持されている。その結果、この形態では、ＰＴＣ素子５の組立性及び保持特性を向上できる。
（第２形態）図９（ａ）～図１２（ｂ）において、配管装置６Ａは、流体用の流路９０を形成している管部材９と、管部材９を加熱するため熱を発生させる加熱部材であるＰＴＣ素子５Ａと、ＰＴＣ素子５Ａと当接してＰＴＣ素子５Ａの熱を管部材９つまり通路９０側に伝える第一伝熱部材２Ａ及び第二伝熱部材３Ａと、電源側より電力をＰＴＣ素子５Ａに供給可能にする端子部材２２，３３とからなる点で第１形態と同じである。変更点は、管部材９が成形された後、その管部材９に対して第一伝熱部材２Ａ及び第二伝熱部材３Ａ並びにＰＴＣ素子５Ａを組み付け作業するようにした一例である。なお、図９（ａ）～図１２（ｂ）では、上記第１形態と同一又は類似する箇所には同じ符号を付している。
　管部材９は、射出成形された樹脂成形品であり、図１０に示すごとく膨出した本体９４内に配置された管部９１と、本体９４の左右に突出された一方側管部９２及び他方管部９３とが同軸線上に設けられると共に、管部９１～９３により一方から他方へ流体を流す連続した流路９０を形成している。
　このうち、本体９４は、図１０及び図１２（ａ）（ｂ）に示されるごとく通路１０の一部を区画している管部９１と、管部９１を挟んだ両側に隙間９６ａ，９６ｂを介して設けられた外壁部９７，９７とを有している。また、本体９４の図上上側は、略矩形に開口されて、隙間９６ａ，９６ｂを露出している。本体９４の上側開口には、段差９７ａが内側縁部に設けられ、プラグ部材４Ａがその段差９７ａに係合された状態で溶着等により取り付けられる。
　一方側管部９２及び他方側管部９３には、図１１（ａ）（ｂ）に示されるごとく配管装置６Ａを目的の通路（この通路としては、例えば、プローバイガス通路構造の場合であれば、プローバイガスをエンジン側に環流させる吸気通路となる）の一部に組み込む際に該通路の一方通路部７と、他方通路部８とが連結される。図示の例では、前記通路のうち、上流又は下流側の通路部７に一方側管部９２が連結され、下流又は上流側の通路部８に他方側管路９３が連結される。
　第一伝熱部材２Ａ及び第二伝熱部材３Ｂは、伝熱・電導性に優れた銅等の金属材によりそれぞれ形成されている。第一伝熱部材２Ａは、図１０に示されるごとく本体内の管部９１の外周を覆うように配置される半筒部２０と、半筒部２０の一方側下部分に設けられた平面部２１と、半筒部２０の長手方向一端側にスリット２４を介して設けられた端子部材２２と、半筒部２０の他方側下部分に設けられた複数（この例では２つ）の弾性爪２９とを有している。
　半筒部２０は、隙間９６ａ，９６ｂに挿入された状態で筒内面が管部９１の外面に重ねられるよう配置される。平面部２１には、ＰＴＣ素子５Ａの片面側の電極５ａが接触する。端子部材２２は、半筒部２０の長手方向の一端側に位置し、円弧状のスリット２４を介して区画され、かつ細長い片状に切り起こすことで図上上向きに突出されている。弾性爪２９は、図１２（ｂ）から推察されるごとく半筒部２０が管部９１に重ねられた状態において隙間９６内で対応する外壁部９７の内面に弾性係止することで、第一伝熱部材２Ａを本体９４内に拘束可能にする。
　第二伝熱部材３Ａは、図１０に示されるごとく本体の隙間９６ｂに組み込まれる基板部３０と、基板部３０の一部に水平連結部３１を介して延長形成されている端子部材３２と、基板部３０の一部を切り起こした状態に設けられて該基板部をＰＴＣ素子５Ａ側へ押圧可能な複数（この例では２つ）の弾性爪３８とを有している。基板部３０は、平面部２１とほぼ同じ大きさの略矩形状からなり、ＰＴＣ素子５Ａに面接触可能となっていてＰＴＣ素子の電極５ｂが接触する。各弾性爪３８は、基板部３０の一部を略Ｕ字形スリット３７により区画し、かつ図上上側を外側へ折り曲げた状態に設けられている。
　第二伝熱部材３Ａは、本体９４に対しＰＴＣ素子５Ａと共に組み込まれる。ＰＴＣ素子５Ａは、チタン酸バリウムなどを主材料とする矩形板状の半導体セラミックであり、対向面にそれぞれ設けられた電極５ａ，５ｂを有している。電極５ａ，５ｂは電導・伝熱に優れた銀等により形成されている。
　以上の各部材の組立手順は、上記したごとく本体９４に第一伝熱部材２Ａを拘束保持した状態から、ＰＴＣ素子５Ａを隙間９６ｂに挿入して平面部２１に面接触させ、その後、第二伝熱部材の基板部３０をＰＴＣ素子５Ａと対応する外壁部９７との間に押入する。すると、第二伝熱部材３Ａは、基板部３０がＰＴＣ素子５Ａと対応する外壁部９７との間に下向きに押入されることで嵌合され、かつ、図１２（ｂ）のごとく弾性爪３８により抜け止めされると共にＰＴＣ素子５Ａ側に付勢された状態で弾性保持される。
　他の組立手順としては、図９（ｂ）に示したごとく第一伝熱部材２Ａに対しＰＴＣ素子５Ａを平面部２１に位置決め配置し、かつ、そのＰＴＣ素子５Ａに第二伝熱部材３Ａの基板部３０を位置決め配置した状態、つまり第一伝熱部材２Ａ、ＰＴＣ素子５Ａ、第二伝熱部材３Ａを互いに関係付けてから、それらを本体９４の内側に押入作業してもよい。この作業では、図１２（ｂ）のごとく第一伝熱部材２Ａが半筒部側の複数の弾性爪２９を介して本体９４内に拘束保持され、同時に、第二伝熱部材３Ａが基板部側の複数の弾性爪３８を介して本体９４内にＰＴＣ素子５Ａと共に拘束保持される。ＰＴＣ素子５Ａは、平面部２１と基板部３０との間に所定の圧力で挟持された状態となっている。
　プラグ部材４Ａは、図１０に示されるごとく本体９４の上側開口を塞ぐフランジ状の板部４０と、板部４０の下面に設けられて本体９４の内側縁部の段差９７ａに係合される枠部４１と、板部４０の上面に突設された矩形の胴部４２と、胴部の底面４４に下設された突出部４５と、突出部４５及び底面４４に設けられて上下に貫通している２つの差込孔４６，４７とを有している（図１１（ａ）参照）。
　すなわち、このプラグ部材４Ａは、電源側のコネクター等を接続する部材であり、本体９４に装着する場合、上記した端子部材２２を一方の差込孔４６から胴部の内部４３に貫通させ、上記した端子部材３２を他方の差込孔４７から胴部の内部４３に貫通させる。その後、枠部４１を本体側段差９７ａに嵌合するとともに、本体１３側に溶着等により一体的に取り付けられる。
（利点）以上の配管装置６Ａも特許文献１のような従来構造に比べ次の点で優れている。
（１）第２形態の配管装置６Ａは、管部材９、金属製の第一伝熱部材２Ａ及び第二伝熱部材３Ａ、加熱部材であるＰＴＣ素子５Ａ、端子部材２２，３２とからなる構造で、第一伝熱部材２Ａ及び第二伝熱部材３Ａが端子部材２２，３２を一部に形成しているため部品点数を削減できるだけではなく、組立も簡略化できる。
（２）また、第一伝熱部材２Ａ及び第二伝熱部材３Ａ並びにＰＴＣ素子５Ａは、管部材９の本体９４内に簡単に組み付けることができ、また、流路９０内に露出しないよう本体９４内に組み付けられるため通路９０を流れる流体に触れることがなくなる。この利点は、従来の様に伝熱部材（文献１のパイプセグメント）やそれに接続される加熱部材２Ａ，３Ａの腐食の虞を完全に解消できる。
（３）ＰＴＣ素子５Ａは、管部材の本体４１内に配置される点で第１形態と同じであるが、第一伝熱部材２Ａを本体９４内に成形後に組み込むためＰＴＣ素子５Ａと面接触させる平面部２１の面積を任意の大きさに確保し易くなり、その結果、この例のごとく相対的に大きなＰＴＣ素子５Ａを用いることも可能となる。
（４）また、第二伝熱部材３Ａは、基板部３０と水平連結部３１とを略直角に屈曲し、水平連結部３１と端子部材３２とを略直角に屈曲している。そして、管部材９への組み込み状態では、図１２（ｂ）に示されるごとく基板部３０が弾性爪３８を介して揺動不能に圧入保持される。なお、構造的には、第二伝熱部材の基板部３０に第１形態の突起３７のような箇所を設けて、ＰＴＣ素子５Ａがその突起３７により上方向への移動が確実に規制されるようしてもよい。
（５）また、配管装置６Ａは、加熱部材として平板状のＰＴＣ素子５Ａを使用するとともに、ＰＴＣ素子５の電極５ａを第一伝熱部材側平面部２１に面接触させ、かつ、もう一方の電極５ｂを第二伝熱部材側基板部３０に面接触させているため、電気的な接続が確実に可能となり、同時にＰＴＣ素子５Ａの熱が伝熱部材２Ａや３Ａに効率よく伝達し、引いては加温効率を向上できる。
（６）同時に、この構造では、図１２（ｂ）に示されるごとくＰＴＣ素子５Ａが第一伝熱部材２Ａの平面部２１と第二伝熱部材３Ａの基板部３０とで挟持され、かつ、第二伝熱部材３Ａの弾性爪３８を介して付勢された状態で保持されている。その結果、この形態でもＰＴＣ素子５Ａの組立性及び保持特性を向上できる。
　なお、本発明は以上の形態例に何ら制約されるものではなく、請求項で特定される構成を実質的に備えておればよく、細部は必要に応じて種々変更可能なものである。一例としては、管部材１に対して第一伝熱部材２及び第二伝熱部材３の両者をインサート成形により一体化したり、更に第一及び第二の各伝熱部材２，３並びにＰＴＣ素子５を管部材１にインサート成形により一体化する様にしてもよい。
　用途は、ブローバイガス通路構造に限定されることなく、管内通路を流れる気体や液体等の流体を加温したいときにその配管系の一部に適宜に組み込んで使用される。
　１・・・・管部材（１０は通路、１１と１２は管部、１３は本体）
　２・・・・第一伝熱部材（２２は端子部材、２６は横スリット、２７は凹凸部）
　２Ａ・・・第一伝熱部材（２２は端子部材、２９は弾性爪）
　３・・・・第二伝熱部材（３０は基板部、３１は水平連結部、３６は弾性爪）
　３Ａ・・・第二伝熱部材（３０は基板部、３１は水平連結部、３８は弾性爪）
　４・・・・プラグ部材（４０は板部、４２は胴部）
　４Ａ・・・プラグ部材（４０は板部、４２は胴部）
　５・・・・ＰＴＣ素子（加熱部材）
　５Ａ・・・ＰＴＣ素子（加熱部材）
　６・・・・配管装置
　６Ａ・・・配管装置
　７・・・・配管
　８・・・・配管
　９・・・・管部材（９０は通路、９１～９３は管部、９４は本体）
　２１・・・平面部
　２２・・・端子部材
　３２・・・端子部材
　なお、２０１４年９月１０日に出願された日本特許出願第２０１４－１８３７５８号の明細書、特許請求の範囲、図面及び要約書の全内容をここに引用し、本発明の明細書の開示として、取り入れるものである。

Claims (6)

  1. 　流体を流す流路を形成している管部材と、前記管部材を加熱するため熱を発生させる加熱部材と、前記加熱部材と当接して前記管部材に熱を伝える金属製伝熱部材と、前記加熱部材と伝熱部材を電気的に接続可能にする端子部材とを備えた流体用の配管装置であって、前記伝熱部材は第一伝熱部材及び第二伝熱部材からなり、前記第一伝熱部材及び第二伝熱部材の少なくとも一方は前記端子部材を一部に形成しているとともに、前記第一伝熱部材は前記管部材の流路内に露出しないよう該管部材に設けられていることを特徴とする流体用の配管装置。
  2. 　前記第一伝熱部材は前記管部材にインサート成形により一体化されていることを特徴とする請求項１に記載の流体用の配管装置。
  3. 　前記加熱部材は平板状のＰＴＣ素子からなるとともに、前記第一伝熱部材及び／又は第二伝熱部材は前記ＰＴＣ素子の電極と当接する部分が平面部に形成されていることを特徴とする請求項１又は２に記載の流体用の配管装置。
  4. 　前記ＰＴＣ素子は、前記第一伝熱部材と第二伝熱部材とで挟持され、かつ前記第二伝熱部材側から付勢された状態で保持されていることを特徴とする請求項３に記載の流体用の配管装置。
  5. 　前記第一伝熱部材は、前記管部材の軸線方向に配置される筒部と、前記筒部の一部を切り起こした状態に設けられた前記端子部材と、前記筒部に設けられて軸線方向に延びる横スリットと、前記横スリットの縁部に設けられた凹凸部ないしは波状部とを有していることを特徴とする請求項１から４の何れかに記載の流体用の配管装置。
  6. 　前記第二伝熱部材は、前記管部材に設けられた位置決め空間に配置される基板部と、前記基板部に延長形成されている前記端子部材と、前記基板部の一部を切り起こした状態に設けられて該基板部を前記ＰＴＣ素子側へ押圧可能な弾性爪とを有していることを特徴とする請求項１から５の何れかに記載の流体用の配管装置。
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