WO2019230146A1 - Seat heater - Google Patents

Seat heater Download PDF

Info

Publication number
WO2019230146A1
WO2019230146A1 PCT/JP2019/011480 JP2019011480W WO2019230146A1 WO 2019230146 A1 WO2019230146 A1 WO 2019230146A1 JP 2019011480 W JP2019011480 W JP 2019011480W WO 2019230146 A1 WO2019230146 A1 WO 2019230146A1
Authority
WO
WIPO (PCT)
Prior art keywords
support
seat heater
wiring
seat
heating resistor
Prior art date
Application number
PCT/JP2019/011480
Other languages
French (fr)
Japanese (ja)
Inventor
海津　雅洋
貴 亀島
Original Assignee
株式会社フジクラ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社フジクラ filed Critical 株式会社フジクラ
Publication of WO2019230146A1 publication Critical patent/WO2019230146A1/en

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/62—Accessories for chairs
    • A47C7/72—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like
    • A47C7/74—Adaptations for incorporating lamps, radio sets, bars, telephones, ventilation, heating or cooling arrangements or the like for ventilation, heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56—Heating or ventilating devices

Definitions

  • the present invention relates to a seat heater.
  • a seat heater For the designated countries that are allowed to be incorporated by reference, the contents described in Japanese Patent Application No. 2018-105297 filed in Japan on May 31, 2018 are incorporated herein by reference. As part of
  • a planar shape including a porous body, a pair of electrodes arranged at intervals in the porous body, and a PTC resistor provided between the electrodes A heating resistor is known (see, for example, Patent Document 1).
  • the above-mentioned seat heater has a problem that almost all of it is a heat generating area, and a portion corresponding to a portion that does not need to be heated also generates heat, so that extra power is consumed.
  • the problem to be solved by the present invention is to provide a seat heater capable of saving power.
  • a sheet heater according to the present invention is provided on a sheet-like support having a plurality of through holes, a pair of opposing wiring portions provided on the support and facing each other, and the support.
  • a heating heater having a higher electrical resistance than the opposing wiring portion, wherein the heating resistor includes an interposition portion provided between the opposing wiring portions, the interposition portion being
  • the seat heater is a seat heater having a non-formed portion in which the interposition portion is not provided between the opposing wiring portions.
  • the interposition part may also exist in the through hole.
  • the opposing wiring portion penetrates the support through the through hole and covers both surfaces of the support, and the intervening portion of the heating resistor also includes the through hole.
  • the both sides of the support may be covered through the support.
  • the heating resistor may include a covering portion that covers the counter wiring portion and is integrally formed with the interposition portion.
  • the sheet heater is provided on the support, and a power supply wiring part formed integrally with the counter wiring part and a metal foil provided so as to overlap the power supply wiring part or And a metal wire.
  • the seat heater includes first and second protective members laminated on both surfaces of the support so as to cover the heating resistor, and the first and second protective members. May be fixed at the outer edge of the support.
  • the seat heater since the seat heater has a non-formed portion in which no intervening portion is provided between the pair of opposed wiring portions, the heat generation area is optimized for a portion requiring heating. This can save power.
  • FIG. 1 is a plan view showing a seat heater in an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 3 is a cross-sectional view taken along line III-III in FIG.
  • FIG. 4 is a cross-sectional view taken along line IV-IV in FIG.
  • FIG. 5 is a plan view showing a state in which the wiring portion is formed on the support in the embodiment of the present invention.
  • FIG. 6 is a plan view showing a state in which a heating resistor is formed on the support in the embodiment of the present invention.
  • FIG. 7 is a partially enlarged plan view showing a support in the embodiment of the present invention.
  • FIG. 8 is a partially enlarged plan view showing a modification of the support in the embodiment of the present invention.
  • FIG. 9 is a plan view showing a modification of the wiring portion in the embodiment of the present invention.
  • FIG. 10 is a cross-sectional view taken along line XX in FIG.
  • FIG. 11 is a cross-sectional view showing an installation example of the seat heater in the embodiment of the present invention.
  • FIG. 1 is a plan view showing a seat heater in the present embodiment
  • FIGS. 2 to 4 are sectional views showing a heat sheet in the present embodiment
  • FIG. 5 is a diagram showing a state in which a conductor is formed on a support in the present embodiment
  • FIG. 6 is a view showing a state in which a heating resistor is formed on the support in the present embodiment.
  • the seat heater 1 in the present embodiment includes a sheet-like support 10, a wiring portion 20, a heating resistor 30, a wire harness 40, protective members 51 and 52, It has.
  • This seat heater 1 is used by being embedded in a seat cushion 110 (see FIG. 11) of a seat 100 of a vehicle such as an automobile, and warms the occupant by resistance heating the heating resistor 30 by energization.
  • FIG. 7 is a partially enlarged plan view showing a support in this embodiment
  • FIG. 8 is a partially enlarged plan view showing a modification of the support in this embodiment.
  • the support 10 is a woven fabric woven by weaving the woven yarns 11 and 12 in a plain weave, and has flexibility.
  • the woven yarn constituting the support 10 includes a warp yarn 11 extending in the longitudinal direction and a weft yarn 12 extending in a direction substantially orthogonal to the warp yarn 11 (that is, the lateral direction).
  • the support 10 since the support 10 is formed by weaving the woven yarns 11 and 12 in a lattice shape, it has a plurality of through holes (basket holes) 14.
  • the through-hole 14 is a gap (mesh) surrounded by the warp 11 and the weft 12 and penetrates the support 10 in the thickness direction of the support 10.
  • the plurality of through holes 14 have substantially the same shape and substantially the same opening area, and are regularly and uniformly arranged on the support 10 in a plan view.
  • the warp 11 is formed by bundling about 10 to 200 insulating fibers 111 having substantially the same diameter.
  • the wefts 12 are each configured by bundling about 10 to 200 insulating fibers 121 having substantially the same diameter.
  • Insulating fibers 111 and 121 in the present embodiment are both made of glass fiber and have substantially the same diameter of about 1 to 20 ⁇ m.
  • the following configuration can be exemplified as an example of the support 10. That is, the insulating fiber 111 of the warp 11 is made of glass fiber having a diameter of about 7 ⁇ m, and each warp 11 is made up of about 200 insulating fibers 111 bundled together.
  • the insulating fibers 121 of the wefts 12 are also made of glass fibers having a diameter of about 7 ⁇ m, and each weft 12 is made of a bundle of about 200 insulating fibers 121.
  • a woven fabric (glass cloth) having a thickness of about 0.1 mm is woven.
  • the woven yarns 11 and 12 are woven in a plain weave so that the density of the warps 11 is about 60 per 25 mm in the lateral direction and the density of the wefts 12 is about 60 per 25 mm in the lateral direction.
  • a large number of through holes 14 having a rectangular opening shape of about 20 ⁇ m ⁇ 20 ⁇ m are present at a pitch of about 0.3 mm.
  • the insulating fibers 111 and 121 are not particularly limited to the above glass fibers as long as they have electrical insulation and flexibility.
  • the insulating fibers 111 and 121 may be made of resin fibers such as nylon fibers, rayon fibers, polyester fibers, polyamide fibers, vinyl fibers, and aramid fibers.
  • the seat heater 1 may have a plurality of supports 10 stacked on each other.
  • the support 10B is composed of a sheet-like non-woven fabric formed by bonding a large number of randomly oriented insulating fibers 13 to each other.
  • the fiber 13 in this example is a glass fiber having a diameter of about 5 to 15 ⁇ m.
  • the binder that binds the insulating fibers 13 include resin materials mainly composed of acrylic resin or epoxy resin. This binder bonds the insulating fibers 13 to each other at intersections. Therefore, gaps are formed between the insulating fibers 13, and a large number of through holes 14 are formed in the support 10 ⁇ / b> B so as to penetrate linearly from the upper surface to the lower surface.
  • the support 10B has a thickness of about 50 to 100 ⁇ m and a porosity of about 75 to 90%.
  • the thickness of the support 10B is not particularly limited, and may have a thickness of 30 ⁇ m or less, for example.
  • the insulating fiber 13 is not particularly limited to the glass fiber as long as it has electrical insulation and flexibility.
  • the insulating fiber 13 may be made of resin fibers such as nylon fiber, rayon fiber, polyester fiber, polyamide fiber, vinyl fiber, and aramid fiber.
  • the seat heater 1 may have a plurality of supports 10B stacked on each other.
  • a porous body having an open cell structure such as a sponge may be used as the support 10 instead of the woven or non-woven fabric.
  • This porous body has a large number of through holes penetrating from the upper surface to the lower surface, and can be formed by foaming an organic material such as resin or rubber.
  • the support 10 in the present embodiment has two regions 101 and 102 as shown in FIGS.
  • the first region 101 is a region where the wiring part 20 and the heating resistor 30 are provided, and is a region contributing to heat generation.
  • the second region 102 is an outer edge portion of the support body 10 surrounding the first region 101, and is a region to which the protection members 51 and 52 are fixed.
  • the wiring part 20 is provided in the first region 101 of the support 10.
  • the wiring portion 20 is formed directly on the support 10, exists in the through hole 14 of the support 10, and is provided on both surfaces of the support 10.
  • the wiring unit 20 includes a first power supply wiring unit 21, a second power supply wiring unit 22, a first counter wiring unit 23, and a second counter wiring unit 24. ing.
  • the first power supply wiring portion 21 is disposed in the vicinity of one end (left end in the drawing) of the first region 101 and extends in the Y direction.
  • the second power supply wiring portion 22 is also disposed in the vicinity of the other end (right end in the drawing) of the first region 101 and extends along the Y direction.
  • a plurality (six in this example) of first opposing wiring sections 23 are branched from the first power supply wiring section 21.
  • the plurality of first opposing wiring portions 23 are arranged at substantially equal intervals along the extending direction (Y direction) of the first power supply wiring portion 21. It protrudes in a comb-tooth shape toward the two power supply wiring portions 22.
  • Each of the first opposing wiring portions 23 extends along the X direction and is disposed substantially in parallel.
  • a plurality (seven in this example) of second opposing wiring sections 24 are also branched from the second power supply wiring section 22.
  • the plurality of second opposing wiring portions 24 are arranged at substantially equal intervals along the extending direction (Y direction) of the second power supply wiring portion 22, and the second power supply wiring portion 22 extends from the second power supply wiring portion 22 to the second power supply wiring portion 22. It protrudes in a comb-tooth shape toward one power supply wiring portion 21.
  • Each of the second opposing wiring portions 24 extends along the X direction and is disposed substantially in parallel.
  • the first opposing wiring portions 23 and the first opposing wiring portions 24 are alternately arranged. Therefore, the first opposing line portion 23 extends between the second opposing wiring portions 24 adjacent to each other, and the second opposing wiring portion 23 is adjacent to each other between the first opposing wiring portions 23 adjacent to each other.
  • the wiring part 24 extends, and the first opposing wiring part 23 and the second opposing wiring part 24 face each other.
  • a predetermined interval is formed between the tip of the first opposing wiring portion 23 and the second power supply wiring portion 22, and the tip of the second counter wiring portion 24 and the first power supply wiring portion are provided.
  • a predetermined interval is also formed between the two.
  • the opposing wiring portions 23 and 24 that directly contact the heating resistor 30 and contribute to resistance heating are separated from the feeding wiring portions 21 and 22 that contribute to feeding power to the opposing wiring portions 23 and 24. Therefore, it is possible to cope with various shapes of the heat generating area, and the degree of freedom in design is improved.
  • planar shapes of the power supply wiring portions 21 and 22 and the opposing wiring portions 23 and 24 are not particularly limited to the above, and can be arbitrarily set.
  • the planar shape of the power supply wiring portions 21 and 22 may be a curved shape or a meandering shape
  • the planar shape may be a curved shape or a meandering shape.
  • the wiring part 20 is composed of, for example, conductive metal particles mainly composed of copper (Cu) or silver (Ag) and a binder resin, and has conductivity.
  • the wiring part 20 may contain a plurality of types of conductive metal particles.
  • the wiring portion 20 is formed by heating and baking the conductive paste applied to the support 10.
  • the wiring portion 20 is formed directly on the support 10, and when the conductive paste is applied to the support 10, the conductive paste penetrates (infiltrates) the support 10. For this reason, the wiring part 20 exists also in the through-hole 14, penetrates the support body 10 through the through-hole 14, and covers both surfaces of the support body 10. In addition, the wiring part 20 may cover only one side of the support 10.
  • the conductive paste for forming the wiring part 20 is a solution containing conductive metal particles and a binder resin that uniformly disperses the conductive metal particles.
  • the conductive metal particles include conductive metal particles mainly composed of copper (Cu), silver (Ag), carbon (C), and the like.
  • the binder resin include one or a mixture of two or more thermosetting resins such as polyhydric phenol compounds, phenol resins, alkyd resins, unsaturated polyester resins, and epoxy resins.
  • an appropriate amount of an aqueous solvent or an alcohol such as ethanol, methanol or 2-propanol, or an organic solvent such as isophorone, terpineol, triethylene glycol monobutyl ether or butyl cellosolve acetate is added to the binder resin as a dispersion medium.
  • the compounding quantity of this solvent is suitably adjusted according to the size, shape, film forming conditions, etc. of electroconductive metal particle.
  • a contact coating method include screen printing, gravure printing, offset printing, gravure offset printing, flexographic printing, and the like.
  • specific examples of the non-contact coating method include inkjet printing, spray coating method, dispense coating method, jet dispensing method and the like.
  • the heat source for curing the conductive paste is not particularly limited, but examples thereof include an electric heating oven, an infrared oven, a far infrared furnace (IR), a near infrared furnace (NIR), and a laser irradiation device. It may be a heat treatment combining these.
  • the heating resistor 30 is a resistor that generates heat when a voltage is applied, and is provided over the entire first region 101 of the support 10 so as to cover the wiring portion 20 as shown in FIG. .
  • the heating resistor 30 is formed by applying a resistor paste to the support 10 and curing it.
  • the heating resistor 30 is formed directly on the support 10 in the same manner as the wiring portion 20 described above, and when the resistor paste is applied to the support 10, the resistor paste passes through the through holes 14 of the support 10. It will also exist inside. For this reason, the heating resistor 30 is also present in the through hole 14, and covers the both surfaces of the support 10 through the support 10 through the through hole 14. Note that the heating resistor 30 may cover only one side of the support 10.
  • the resistor paste in this embodiment is a high resistance conductive paste.
  • a paste containing a crystalline resin, a binder resin, and a conductor can be exemplified.
  • the crystalline resin include polyolefin resins and vinyl resins.
  • the binder resin include synthetic rubbers such as isopropylene rubber, butadiene rubber, nitrile rubber, ethylene propylene rubber, and silicon rubber, or thermoplastic elastomers.
  • Examples of the conductor include carbon and graphite.
  • the heating resistor 30 is in direct contact with the wiring portion 20 formed on the support 10, and includes an intervening portion 31 and a covering portion 32 as shown in FIGS.
  • the intervening portion 31 is a portion interposed between the opposing wiring portions 23 and 24 facing each other, and is a portion contributing to heat generation.
  • the intervening portion 31 is also present in the through hole 14 and penetrates the support body 10 through the through hole 14 and covers both surfaces of the support body 10.
  • the covering portion 32 is a portion interposed between the interposition portions 31, and has a function of protecting the opposing wiring portions 23, 24 by covering the opposing wiring portions 23, 24.
  • the interposition part 31 and the covering part 32 are integrally formed.
  • an opening 33 is formed in a portion of the heating resistor 30 corresponding to the end portions of the power supply wiring portions 21 and 22, and the end portions of the power supply wiring portions 21 and 22 are formed through the openings 33.
  • the heating resistor 30 is exposed.
  • the crimp terminal 41 of the wire harness 40 is connected to the power supply wiring portions 21 and 22 through the opening 33.
  • One end of an electric wire 42 is connected to the crimp terminal 41, and a connector 43 is connected to the other end of the electric wire 42.
  • the wiring part 20 and the heating resistor 30 are connected to a power supply source (not shown) via the connector 43 of the wire harness 40.
  • the wiring portion 20 exists in the through hole 14 of the support 10 and is provided on both surfaces of the support 10, a large cross-sectional area of the wiring portion 20 is ensured. . For this reason, even when the wiring becomes longer as the heater area increases, the increase in the electrical resistance value of the wiring portion 20 can be mitigated and the power supply amount can be leveled over the entire heat generation area. it can.
  • the interposition part 31 of the heat generating resistor 30 exists in the through-hole 14 and is provided on both surfaces of the support body 10, a large cross-sectional area of the heat generating resistor 30 is ensured. Therefore, it is possible to improve the temperature rising rate and make the heat generation uniform. Further, since the heating resistor 30 has a symmetrical structure, the resistance of the seat heater 1 to thermal deformation can be improved.
  • the covering portion 32 covers the opposing wiring portions 23 and 24, the opposing wiring portions 23 and 24 are protected. Further, since the covering portion 32 is formed integrally with the interposition portion 31, the fixing force of the wiring portion 20 to the support 10 is improved and the contact area between the wiring portion 20 and the heating resistor 30 is increased. You can also.
  • the seat heater 1 of the present embodiment has a non-formed portion 34 in which no intervening portion 31 is formed between the opposing wiring portions 23 and 24 facing each other. Yes.
  • the support 10 is exposed from the non-formed portion 34. Since the non-formed portion 34 cuts off electrical conduction between the opposing wiring portions 23 and 24, the non-formed portion 34 does not generate heat.
  • non-formed portions 34 are provided in the upper region of the heating resistor 30 in the figure, and these non-formed portions 34 have a substantially semicircular shape as a whole. ing.
  • the non-formed portion 34 corresponds to a gap between the thighs of the occupant, and prohibits heat generation in a portion corresponding to a portion that does not require heating in the heating resistor 30. That is, in the present embodiment, power saving is achieved by approximating the shape of the heat generating area in the heating resistor 30 to the shape of the portion requiring heating.
  • the shape of the non-formation part 34 is not specifically limited.
  • FIG. 9 is a plan view showing a modification of the wiring portion in the present embodiment.
  • FIG. 9 corresponds to FIG. 5 described above, and the heating resistor 30 and the protection members 51 and 52 are not shown in FIG.
  • FIG. 10 is a sectional view taken along line XX in FIG.
  • seat heater 1 may be provided with the strip
  • the metal foils 25 and 26 are made of, for example, a metal material having excellent conductivity such as copper, aluminum, or an alloy thereof, and have a thickness of about 35 ⁇ m, although not particularly limited. In place of the metal foils 25 and 26, a fine wire or a conductive yarn obtained by winding a metal foil around a resin fiber may be used.
  • the metal foil 25 is provided so as to overlap with the first power supply wiring portion 21.
  • the metal foil 25 is disposed in the first region 101 of the support 10 before forming the wiring part 20, and the first power supply wiring part 31 is formed on the support 10 so as to cover the metal foil 25. Thus, the metal foil 25 and the first power supply wiring portion 31 are connected.
  • the metal foil 26 is provided so as to overlap the second power supply wiring portion 22.
  • the metal foil 26 is disposed in the first region 101 of the support 10 before forming the wiring portion 20, and the second power supply wiring portion 32 is formed on the support 10 so as to cover the metal foil 26. As a result, the metal foil 26 and the first power supply wiring portion 32 are connected.
  • the openings 211 and 221 are also formed in the power supply wiring portions 21 and 22 so that the wire 41 of the wire harness 40 is connected to the metal foils 25 and 26. Direct soldering may be used.
  • the first and second protective members 51 and 52 cover the entire surface of the support 10 and are attached to the support 10 in the second region 102. That is, the seat heater 1 of the present embodiment has a fixing portion 53 formed by fixing the protection members 51 and 52 to the support 10 at the outer edge portion.
  • protective members 51 and 52 for example, a needle felt (nonwoven fabric) made of polyester fiber and having a thickness of about 1.0 mm can be exemplified.
  • adhesive agents such as a silicon-type resin, can be illustrated, for example.
  • the protection members 51 and 52 you may use the nonwoven fabric which consists of fibers other than polyester, or a woven fabric.
  • a non-woven fabric containing carbon fibers having high thermal conductivity may be used as the protective member 51 on the seat skin 120 side of the seat cushion 110.
  • the heat propagation loss at the time of heater operation can be reduced and heating performance can be improved.
  • the wadding 140 under the seat cover 120 may be unnecessary.
  • a nonwoven fabric having a surface with a large friction coefficient may be used as the protective member 52 on the seat pad 130 side of the seat cushion 110.
  • a nonwoven fabric having a surface with a large friction coefficient may be used as the protective member 52 on the seat pad 130 side of the seat cushion 110.
  • the protective members 51 and 52 are comprised using the fiber which has hot-melt adhesiveness, such as a polypropylene (PP), polyethylene (PE), and polyamide (PA), without using an adhesive agent,
  • PP polypropylene
  • PE polyethylene
  • PA polyamide
  • the protective members 51 and 52 may be affixed to the support 10 by partially melting.
  • the seat heater 1 can be directly sewn to the back surface of the seat skin 120 of the seat 100 without using an adhesive material or the like, so that the accuracy of the mounting position of the seat heater 1 is improved. And misalignment during use can be suppressed.
  • FIG. 11 is a sectional view showing an installation example of the seat heater in the present embodiment.
  • the seat heater 1 described above is installed on a seat 100 of a vehicle such as an automobile as shown in FIG.
  • the seat 100 includes, for example, a seat cushion 110 that supports an occupant's buttocks seated on the seat 100 and a seat back 150 that supports an occupant's back.
  • the seat back 150 is equipped with a headrest 160 that supports the head of the occupant.
  • the seat heater 1 heats the occupant by resistance heating the heating resistor 30 by energizing the opposing wiring portions 23 and 24.
  • the portion where heating is required can be optimized and power saving can be achieved.
  • the seat heater installed on the seat 100 of the vehicle has been described.
  • the use of the seat heater 1 is not particularly limited to the vehicle, and for example, used for a seat or a bed used outside the vehicle. May be.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Seats For Vehicles (AREA)
  • Surface Heating Bodies (AREA)
  • Resistance Heating (AREA)

Abstract

This seat heater (1) comprises a sheet-shaped support (10) having a plurality of through-holes (14), a pair of opposing wiring parts (23, 24) provided on the support 10 and facing one another, and a heat-generating resistor (30) provided on the support and having a higher electrical resistance than the opposing wiring parts. The heat-generating resistor contains an intervening part (31) provided between the opposing wiring sections. The intervening part covers the support. The seat heater has a non-formed portion (34) wherein no intervening part is provided between the opposing wiring sections.

Description

シートヒータSeat heater
　本発明は、シートヒータに関するものである。
　文献の参照による組み込みが認められる指定国については、２０１８年５月３１日に日本国に出願された特願２０１８－１０５２９７に記載された内容を参照により本明細書に組み込み、本明細書の記載の一部とする。 The present invention relates to a seat heater.
For the designated countries that are allowed to be incorporated by reference, the contents described in Japanese Patent Application No. 2018-105297 filed in Japan on May 31, 2018 are incorporated herein by reference. As part of
　自動車のシートに搭載されるシートヒータとして、多孔質体と、当該多孔質体に間隔を空けて配置された一対の電極と、当該電極間に設けられたＰＴＣ抵抗体と、を備えた面状発熱抵抗体が知られている（例えば特許文献１参照）。 As a seat heater mounted on a seat of an automobile, a planar shape including a porous body, a pair of electrodes arranged at intervals in the porous body, and a PTC resistor provided between the electrodes A heating resistor is known (see, for example, Patent Document 1).
特開２００３－１０９８０３号公報JP 2003-109803 A
　上記のシートヒータでは、そのほぼ全域が発熱エリアであり、加温が不要な箇所に対応する部分も発熱させているため、余分に電力を消費している、という問題がある。 The above-mentioned seat heater has a problem that almost all of it is a heat generating area, and a portion corresponding to a portion that does not need to be heated also generates heat, so that extra power is consumed.
　本発明が解決しようとする課題は、省電力化を図ることが可能なシートヒータを提供することである。 The problem to be solved by the present invention is to provide a seat heater capable of saving power.
　［１］本発明に係るシートヒータは、複数の貫通孔を有するシート状の支持体と、前記支持体に設けられ、相互に対向する一対の対向配線部と、前記支持体に設けられ、前記対向配線部よりも電気的な抵抗の高い発熱抵抗体と、を備えたシートヒータであって、前記発熱抵抗体は、前記対向配線部の間に設けられた介在部分を含み、前記介在部分は、前記支持体を覆っており、前記シートヒータは、前記対向配線部の間に前記介在部分が設けられていない非形成部分を有するシートヒータである。 [1] A sheet heater according to the present invention is provided on a sheet-like support having a plurality of through holes, a pair of opposing wiring portions provided on the support and facing each other, and the support. A heating heater having a higher electrical resistance than the opposing wiring portion, wherein the heating resistor includes an interposition portion provided between the opposing wiring portions, the interposition portion being The seat heater is a seat heater having a non-formed portion in which the interposition portion is not provided between the opposing wiring portions.
　［２］上記発明において、前記介在部分は、前記貫通孔内にも存在していてもよい。 [2] In the above invention, the interposition part may also exist in the through hole.
　［３］上記発明において、前記対向配線部は、前記貫通孔を介して前記支持体を貫通して前記支持体の両面を覆っており、前記発熱抵抗体の前記介在部分も、前記貫通孔を介して前記支持体を貫通して前記支持体の両面を覆っていてもよい。 [3] In the above invention, the opposing wiring portion penetrates the support through the through hole and covers both surfaces of the support, and the intervening portion of the heating resistor also includes the through hole. The both sides of the support may be covered through the support.
　［４］上記発明において、前記発熱抵抗体は、前記対向配線部を覆うと共に前記介在部分と一体的に形成された被覆部分を含んでもよい。 [4] In the above invention, the heating resistor may include a covering portion that covers the counter wiring portion and is integrally formed with the interposition portion.
　［５］上記発明において、前記シートヒータは、前記支持体に設けられ、前記対向配線部と一体的に形成された給電配線部と、前記給電配線部と重複するように設けられた金属箔又は金属線と、を含んでもよい。 [5] In the above invention, the sheet heater is provided on the support, and a power supply wiring part formed integrally with the counter wiring part and a metal foil provided so as to overlap the power supply wiring part or And a metal wire.
　［６］上記発明において、前記シートヒータは、前記発熱抵抗体を覆うように前記支持体の両面に積層された第１及び第２の保護部材を備え、前記第１及び前記第２の保護部材は、前記支持体の外縁部で固定されていてもよい。 [6] In the above invention, the seat heater includes first and second protective members laminated on both surfaces of the support so as to cover the heating resistor, and the first and second protective members. May be fixed at the outer edge of the support.
　本発明によれば、一対の対向配線部の間に介在部分が設けられていない非形成部分をシートヒータが有しているので、加温が必要な箇所に対して発熱エリアを最適化することができ、省電力化を図ることができる。 According to the present invention, since the seat heater has a non-formed portion in which no intervening portion is provided between the pair of opposed wiring portions, the heat generation area is optimized for a portion requiring heating. This can save power.
図１は、本発明の実施形態におけるシートヒータを示す平面図である。FIG. 1 is a plan view showing a seat heater in an embodiment of the present invention. 図２は、図１のII-II線に沿った断面図である。FIG. 2 is a cross-sectional view taken along the line II-II in FIG. 図３は、図１のIII-III線に沿った断面図である。3 is a cross-sectional view taken along line III-III in FIG. 図４は、図１のIV-IV線に沿った断面図である。FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 図５は、本発明の実施形態において支持体に配線部を形成した状態を示す平面図である。FIG. 5 is a plan view showing a state in which the wiring portion is formed on the support in the embodiment of the present invention. 図６は、本発明の実施形態において支持体に発熱抵抗体を形成した状態を示す平面図である。FIG. 6 is a plan view showing a state in which a heating resistor is formed on the support in the embodiment of the present invention. 図７は、本発明の実施形態における支持体を示す部分拡大平面図である。FIG. 7 is a partially enlarged plan view showing a support in the embodiment of the present invention. 図８は、本発明の実施形態における支持体の変形例を示す部分拡大平面図である。FIG. 8 is a partially enlarged plan view showing a modification of the support in the embodiment of the present invention. 図９は、本発明の実施形態における配線部の変形例を示す平面図である。FIG. 9 is a plan view showing a modification of the wiring portion in the embodiment of the present invention. 図１０は、図９のX-X線に沿った断面図である。FIG. 10 is a cross-sectional view taken along line XX in FIG. 図１１は、本発明の実施形態におけるシートヒータの設置例を示す断面図である。FIG. 11 is a cross-sectional view showing an installation example of the seat heater in the embodiment of the present invention.
　以下、本発明の実施形態を図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
　図１は本実施形態におけるシートヒータを示す平面図、図２～図４は本実施形態におけるヒートシートを示す断面図、図５は本実施形態において支持体に導体部を形成した状態を示す図、図６は本実施形態において支持体に発熱抵抗体を形成した状態を示す図である。 FIG. 1 is a plan view showing a seat heater in the present embodiment, FIGS. 2 to 4 are sectional views showing a heat sheet in the present embodiment, and FIG. 5 is a diagram showing a state in which a conductor is formed on a support in the present embodiment. FIG. 6 is a view showing a state in which a heating resistor is formed on the support in the present embodiment.
　本実施形態におけるシートヒータ１は、図１～図６に示すように、シート状の支持体１０と、配線部２０と、発熱抵抗体３０と、ワイヤハーネス４０と、保護部材５１，５２と、を備えている。このシートヒータ１は、自動車等の車両のシート１００のシートクッション１１０（図１１参照）に埋設されて使用され、通電によって発熱抵抗体３０を抵抗加熱することで乗員を加温する。 As shown in FIGS. 1 to 6, the seat heater 1 in the present embodiment includes a sheet-like support 10, a wiring portion 20, a heating resistor 30, a wire harness 40, protective members 51 and 52, It has. This seat heater 1 is used by being embedded in a seat cushion 110 (see FIG. 11) of a seat 100 of a vehicle such as an automobile, and warms the occupant by resistance heating the heating resistor 30 by energization.
　図７は本実施形態における支持体を示す部分拡大平面図、図８は本実施形態における支持体の変形例を示す部分拡大平面図である。 FIG. 7 is a partially enlarged plan view showing a support in this embodiment, and FIG. 8 is a partially enlarged plan view showing a modification of the support in this embodiment.
　支持体１０は、図７に示すように、織糸１１，１２を平織りで織り込むことで製織された織布であり、柔軟性を有している。この支持体１０を構成する織糸は、縦方向に延在する経糸１１と、当該経糸１１に実質的に直交する方向（すなわち横方向）に延在する緯糸１２と、を含んでいる。 As shown in FIG. 7, the support 10 is a woven fabric woven by weaving the woven yarns 11 and 12 in a plain weave, and has flexibility. The woven yarn constituting the support 10 includes a warp yarn 11 extending in the longitudinal direction and a weft yarn 12 extending in a direction substantially orthogonal to the warp yarn 11 (that is, the lateral direction).
　上記のように、支持体１０は、織糸１１，１２を格子状に織ることで形成されているため、複数の貫通孔（バスケットホール）１４を有している。この貫通孔１４は、経糸１１と緯糸１２によって囲まれた隙間（網の目）であり、支持体１０を当該支持体１０の厚さ方向に貫通している。複数の貫通孔１４は、実質的に同一の形状を有すると共に実質的に同一の開口面積を有しており、平面視において支持体１０に規則的且つ均一に配置されている。 As described above, since the support 10 is formed by weaving the woven yarns 11 and 12 in a lattice shape, it has a plurality of through holes (basket holes) 14. The through-hole 14 is a gap (mesh) surrounded by the warp 11 and the weft 12 and penetrates the support 10 in the thickness direction of the support 10. The plurality of through holes 14 have substantially the same shape and substantially the same opening area, and are regularly and uniformly arranged on the support 10 in a plan view.
　経糸１１は、実質的に同一の直径を有する１０～２００本程度の絶縁性繊維１１１を束ねてそれぞれ構成されている。同様に、緯糸１２も、実質的に同一の直径を有する１０～２００本程度の絶縁性繊維１２１を束ねてそれぞれ構成されている。本実施形態における絶縁性繊維１１１，１２１はいずれもガラス繊維から構成されており、１～２０μｍ程度の実質的に同一の直径を有している。 The warp 11 is formed by bundling about 10 to 200 insulating fibers 111 having substantially the same diameter. Similarly, the wefts 12 are each configured by bundling about 10 to 200 insulating fibers 121 having substantially the same diameter. Insulating fibers 111 and 121 in the present embodiment are both made of glass fiber and have substantially the same diameter of about 1 to 20 μm.
　特に限定されないが、こうした支持体１０の一例として、以下の構成を例示することができる。すなわち、経糸１１の絶縁性繊維１１１が７μｍ程度の直径を有するガラス繊維で構成されており、それぞれの経糸１１は、２００本程度の絶縁性繊維１１１を束ねて構成されている。緯糸１２の絶縁性繊維１２１も７μｍ程度の直径を有するガラス繊維で構成されており、それぞれの緯糸１２は、２００本程度の絶縁性繊維１２１を束ねて構成されている。これらの織糸１１，１２を織り込むことで、０．１ｍｍ程度の厚さを有する織布（ガラスクロス）が製織されている。この支持体１０では、経糸１１の密度が横方向２５ｍｍあたり６０本程度となり、緯糸１２の密度も横方向２５ｍｍ当たり６０本程度となるように、織糸１１，１２が平織りで織り込まれている。こうした仕様の支持体１０には、２０μｍ×２０μｍ程度の矩形の開口形状を有する多数の貫通孔１４が０．３ｍｍ程度のピッチで存在する。 Although not particularly limited, the following configuration can be exemplified as an example of the support 10. That is, the insulating fiber 111 of the warp 11 is made of glass fiber having a diameter of about 7 μm, and each warp 11 is made up of about 200 insulating fibers 111 bundled together. The insulating fibers 121 of the wefts 12 are also made of glass fibers having a diameter of about 7 μm, and each weft 12 is made of a bundle of about 200 insulating fibers 121. By weaving these woven yarns 11 and 12, a woven fabric (glass cloth) having a thickness of about 0.1 mm is woven. In this support 10, the woven yarns 11 and 12 are woven in a plain weave so that the density of the warps 11 is about 60 per 25 mm in the lateral direction and the density of the wefts 12 is about 60 per 25 mm in the lateral direction. In the support body 10 having such specifications, a large number of through holes 14 having a rectangular opening shape of about 20 μm × 20 μm are present at a pitch of about 0.3 mm.
　なお、絶縁性繊維１１１，１２１は、電気絶縁性及び柔軟性を有していれば、上記のガラス繊維に特に限定されない。例えば、ナイロン繊維、レーヨン繊維、ポリエステル繊維、ポリアミド繊維、ビニル繊維、アラミド繊維等の樹脂繊維で、絶縁性繊維１１１，１２１を構成してもよい。また、シートヒータ１が相互に積層された複数の支持体１０を有していてもよい。 The insulating fibers 111 and 121 are not particularly limited to the above glass fibers as long as they have electrical insulation and flexibility. For example, the insulating fibers 111 and 121 may be made of resin fibers such as nylon fibers, rayon fibers, polyester fibers, polyamide fibers, vinyl fibers, and aramid fibers. Further, the seat heater 1 may have a plurality of supports 10 stacked on each other.
　なお、支持体１０Ｂとして、上記の織布に代えて、図８に示すような不織布を用いてもよい。 In addition, it may replace with said woven fabric as a support body 10B, and may use the nonwoven fabric as shown in FIG.
　この支持体１０Ｂは、図８に示すように、ランダムに配向された多数の絶縁性繊維１３を相互に結合することで形成されたシート状の不織布から構成されている。本例における繊維１３は、５～１５μｍ程度の直径を有するガラス繊維である。絶縁性繊維１３を結合するバインダとしては、アクリル樹脂やエポキシ樹脂を主成分とした樹脂材料を例示することができる。このバインダは、絶縁性繊維１３同士を交点で相互に接着している。そのため、絶縁性繊維１３同士の間には空隙が形成されており、この支持体１０Ｂには、上面から下面に直線状に貫通する多数の貫通孔１４が形成されている。この支持体１０Ｂは、５０～１００μｍ程度の厚さを有していると共に、７５～９０％程度の空隙率を有している。なお、支持体１０Ｂの厚さは特に限定されず、例えば３０μｍ以下の厚さを有していてもよい。 As shown in FIG. 8, the support 10B is composed of a sheet-like non-woven fabric formed by bonding a large number of randomly oriented insulating fibers 13 to each other. The fiber 13 in this example is a glass fiber having a diameter of about 5 to 15 μm. Examples of the binder that binds the insulating fibers 13 include resin materials mainly composed of acrylic resin or epoxy resin. This binder bonds the insulating fibers 13 to each other at intersections. Therefore, gaps are formed between the insulating fibers 13, and a large number of through holes 14 are formed in the support 10 </ b> B so as to penetrate linearly from the upper surface to the lower surface. The support 10B has a thickness of about 50 to 100 μm and a porosity of about 75 to 90%. The thickness of the support 10B is not particularly limited, and may have a thickness of 30 μm or less, for example.
　なお、絶縁性繊維１３は、電気絶縁性及び柔軟性を有していれば、上記のガラス繊維に特に限定されない。例えば、ナイロン繊維、レーヨン繊維、ポリエステル繊維、ポリアミド繊維、ビニル繊維、アラミド繊維等の樹脂繊維で、絶縁性繊維１３を構成してもよい。また、シートヒータ１が相互に積層された複数の支持体１０Ｂを有していてもよい。 The insulating fiber 13 is not particularly limited to the glass fiber as long as it has electrical insulation and flexibility. For example, the insulating fiber 13 may be made of resin fibers such as nylon fiber, rayon fiber, polyester fiber, polyamide fiber, vinyl fiber, and aramid fiber. Further, the seat heater 1 may have a plurality of supports 10B stacked on each other.
　特に図示しないが、上記の織布や不織布に代えて、スポンジ等の連続気泡構造を有する多孔質体を支持体１０として用いてもよい。この多孔質体は、上面から下面に貫通する多数の貫通孔を有しており、樹脂やゴムなどの有機材料を発泡処理することで形成することができる。 Although not particularly illustrated, a porous body having an open cell structure such as a sponge may be used as the support 10 instead of the woven or non-woven fabric. This porous body has a large number of through holes penetrating from the upper surface to the lower surface, and can be formed by foaming an organic material such as resin or rubber.
　本実施形態における支持体１０は、図１及び図２に示すように、２つの領域１０１，１０２を有している。第１の領域１０１は、配線部２０と発熱抵抗体３０が設けられている領域であり、発熱に寄与する領域である。これに対し、第２の領域１０２は、第１の領域１０１を囲う支持体１０の外縁部であり、保護部材５１，５２が固定される領域である。 The support 10 in the present embodiment has two regions 101 and 102 as shown in FIGS. The first region 101 is a region where the wiring part 20 and the heating resistor 30 are provided, and is a region contributing to heat generation. On the other hand, the second region 102 is an outer edge portion of the support body 10 surrounding the first region 101, and is a region to which the protection members 51 and 52 are fixed.
　配線部２０は、支持体１０の第１の領域１０１に設けられている。この配線部２０は、支持体１０に直接形成されており、支持体１０の貫通孔１４内に存在していると共に、支持体１０の両面に設けられている。 The wiring part 20 is provided in the first region 101 of the support 10. The wiring portion 20 is formed directly on the support 10, exists in the through hole 14 of the support 10, and is provided on both surfaces of the support 10.
　配線部２０は、図５に示すように、第１の給電配線部２１と、第２の給電配線部２２と、第１の対向配線部２３と、第２の対向配線部２４と、を備えている。 As shown in FIG. 5, the wiring unit 20 includes a first power supply wiring unit 21, a second power supply wiring unit 22, a first counter wiring unit 23, and a second counter wiring unit 24. ing.
　第１の給電配線部２１は、第１の領域１０１の一方端（図中の左端）の近傍に配置されており、Ｙ方向に沿って延在している。同様に、第２の給電配線部２２も、第１の領域１０１の他方端（図中の右端）の近傍に配置されており、Ｙ方向に沿って延在している。 The first power supply wiring portion 21 is disposed in the vicinity of one end (left end in the drawing) of the first region 101 and extends in the Y direction. Similarly, the second power supply wiring portion 22 is also disposed in the vicinity of the other end (right end in the drawing) of the first region 101 and extends along the Y direction.
　第１の給電配線部２１からは、複数（本例では６本）の第１の対向配線部２３が枝分かれしている。この複数の第１の対向配線部２３は、第１の給電配線部２１の延在方向（Ｙ方向）に沿って実質的に等間隔に配置されており、第１の給電配線部２１から第２の給電配線部２２に向かって櫛歯状に突出している。それぞれの第１の対向配線部２３は、Ｘ方向に沿ってそれぞれ延在しており、実質的に平行に配置されている。 A plurality (six in this example) of first opposing wiring sections 23 are branched from the first power supply wiring section 21. The plurality of first opposing wiring portions 23 are arranged at substantially equal intervals along the extending direction (Y direction) of the first power supply wiring portion 21. It protrudes in a comb-tooth shape toward the two power supply wiring portions 22. Each of the first opposing wiring portions 23 extends along the X direction and is disposed substantially in parallel.
　第２の給電配線部２２からも、複数（本例では７本）の第２の対向配線部２４が枝分かれしている。この複数の第２の対向配線部２４は、第２の給電配線部２２の延在方向（Ｙ方向）に沿って実質的に等間隔に配置されており、第２の給電配線部２２から第１の給電配線部２１に向かって櫛歯状に突出している。それぞれの第２の対向配線部２４は、Ｘ方向に沿ってそれぞれ延在しており、実質的に平行に配置されている。 A plurality (seven in this example) of second opposing wiring sections 24 are also branched from the second power supply wiring section 22. The plurality of second opposing wiring portions 24 are arranged at substantially equal intervals along the extending direction (Y direction) of the second power supply wiring portion 22, and the second power supply wiring portion 22 extends from the second power supply wiring portion 22 to the second power supply wiring portion 22. It protrudes in a comb-tooth shape toward one power supply wiring portion 21. Each of the second opposing wiring portions 24 extends along the X direction and is disposed substantially in parallel.
　そして、第１の対向配線部２３と第１の対向配線部２４とは交互に配置されている。このため、相互に隣り合う第２の対向配線部２４の間に第１の対向線部２３が延在していると共に、相互に隣り合う第１の対向配線部２３の間に第２の対向配線部２４が延在しており、第１の対向配線部２３と第２の対向配線部２４とが相互に対向している。なお、第１の対向配線部２３の先端と第２の給電配線部２２との間には所定の間隔が形成されていると共に、第２の対向配線部２４の先端と第１の給電配線部２１との間にも所定の間隔が形成されている。 The first opposing wiring portions 23 and the first opposing wiring portions 24 are alternately arranged. Therefore, the first opposing line portion 23 extends between the second opposing wiring portions 24 adjacent to each other, and the second opposing wiring portion 23 is adjacent to each other between the first opposing wiring portions 23 adjacent to each other. The wiring part 24 extends, and the first opposing wiring part 23 and the second opposing wiring part 24 face each other. A predetermined interval is formed between the tip of the first opposing wiring portion 23 and the second power supply wiring portion 22, and the tip of the second counter wiring portion 24 and the first power supply wiring portion are provided. A predetermined interval is also formed between the two.
　本実施形態では、発熱抵抗体３０と直接接触して抵抗加熱に寄与する対向配線部２３，２４と、当該対向配線部２３，２４への給電に寄与する給電配線部２１，２２とを分けることで、発熱エリアの多様な形状に対応することが可能となっており、設計の自由度の向上が図られている。 In the present embodiment, the opposing wiring portions 23 and 24 that directly contact the heating resistor 30 and contribute to resistance heating are separated from the feeding wiring portions 21 and 22 that contribute to feeding power to the opposing wiring portions 23 and 24. Therefore, it is possible to cope with various shapes of the heat generating area, and the degree of freedom in design is improved.
　なお、給電配線部２１，２２や対向配線部２３，２４の平面形状は、上記に特に限定されず、任意に設定することができる。例えば、対向配線部２３，２４の間隔がほぼ一定に維持されているのであれば、給電配線部２１，２２の平面形状を曲線形状としたり蛇行形状としてもよいし、対向配線部２３，２４の平面形状を曲線形状としたり蛇行形状としてもよい。 Note that the planar shapes of the power supply wiring portions 21 and 22 and the opposing wiring portions 23 and 24 are not particularly limited to the above, and can be arbitrarily set. For example, if the distance between the opposing wiring portions 23 and 24 is maintained substantially constant, the planar shape of the power supply wiring portions 21 and 22 may be a curved shape or a meandering shape, The planar shape may be a curved shape or a meandering shape.
　配線部２０は、例えば、銅（Ｃｕ）或いは銀（Ａｇ）等を主成分とする導電性金属粒子と、バインダ樹脂とから構成されており、導電性を有している。なお、配線部２０が、複数種の導電性金属粒子を含有していてもよい。 The wiring part 20 is composed of, for example, conductive metal particles mainly composed of copper (Cu) or silver (Ag) and a binder resin, and has conductivity. The wiring part 20 may contain a plurality of types of conductive metal particles.
　この配線部２０は、支持体１０に塗布した導電性ペーストを加熱して焼成することで形成されている。なお、この配線部２０は、支持体１０に直接形成されており、導電性ペーストを支持体１０に塗布した際に当該導電性ペーストが支持体１０に浸透（浸潤）する。このため、配線部２０は、貫通孔１４内にも存在しており、貫通孔１４を介して支持体１０を貫通し支持体１０の両面を覆っている。なお、配線部２０が、支持体１０の片面のみを覆っていてもよい。 The wiring portion 20 is formed by heating and baking the conductive paste applied to the support 10. The wiring portion 20 is formed directly on the support 10, and when the conductive paste is applied to the support 10, the conductive paste penetrates (infiltrates) the support 10. For this reason, the wiring part 20 exists also in the through-hole 14, penetrates the support body 10 through the through-hole 14, and covers both surfaces of the support body 10. In addition, the wiring part 20 may cover only one side of the support 10.
　配線部２０を形成するための導電性ペーストは、導電性金属粒子と、当該導電性金属粒子を均一に分散するバインダ樹脂と、を含有した溶液である。導電性金属粒子の具体例としては、例えば、銅（Ｃｕ）、銀（Ａｇ）、カーボン（Ｃ）等を主成分とする導電性金属粒子を例示することができる。バインダ樹脂としては、多価フェノール化合物、フェノール樹脂、アルキッド樹脂、不飽和ポリエステル樹脂、エポキシ樹脂などの熱硬化性樹脂の１種または２種以上の樹脂混合を例示することができる。このとき、バインダ樹脂には水系溶媒、あるいはエタノール、メタノール、２－プロパノールなどのアルコール類、イソホロン、テルピネオール、トリエチレングリコールモノブチルエーテル、ブチルセロソルブアセテートなどの有機系溶媒を分散媒として適量配合される。なお、この溶媒の配合量は、導電性金属粒子のサイズ、形状や製膜条件等に応じて適宜調整される。 The conductive paste for forming the wiring part 20 is a solution containing conductive metal particles and a binder resin that uniformly disperses the conductive metal particles. Specific examples of the conductive metal particles include conductive metal particles mainly composed of copper (Cu), silver (Ag), carbon (C), and the like. Examples of the binder resin include one or a mixture of two or more thermosetting resins such as polyhydric phenol compounds, phenol resins, alkyd resins, unsaturated polyester resins, and epoxy resins. At this time, an appropriate amount of an aqueous solvent or an alcohol such as ethanol, methanol or 2-propanol, or an organic solvent such as isophorone, terpineol, triethylene glycol monobutyl ether or butyl cellosolve acetate is added to the binder resin as a dispersion medium. In addition, the compounding quantity of this solvent is suitably adjusted according to the size, shape, film forming conditions, etc. of electroconductive metal particle.
　導電性ペーストを支持体１０に塗布する方法としては、特に限定されないが、接触塗布法又は非接触塗布法のいずれを用いてもよい。接触塗布法の具体例としては、スクリーン印刷、グラビア印刷、オフセット印刷、グラビアオフセット印刷、フレキソ印刷等を例示することができる。一方、非接触塗布法の具体例としては、インクジェット印刷、スプレー塗布法、ディスペンス塗布法、ジェットディスペンス法等を例示することができる。 Although it does not specifically limit as a method of apply | coating an electrically conductive paste to the support body 10, You may use either a contact coating method or a non-contact coating method. Specific examples of the contact coating method include screen printing, gravure printing, offset printing, gravure offset printing, flexographic printing, and the like. On the other hand, specific examples of the non-contact coating method include inkjet printing, spray coating method, dispense coating method, jet dispensing method and the like.
　また、導電性ペーストを硬化させるための熱源としては、特に限定されないが、電熱オーブン、赤外線オーブン、遠赤外炉（ＩＲ）、近赤外炉（ＮＩＲ）、レーザ照射装置等を例示することができ、これらを組み合わせた熱処理であってもよい。 Further, the heat source for curing the conductive paste is not particularly limited, but examples thereof include an electric heating oven, an infrared oven, a far infrared furnace (IR), a near infrared furnace (NIR), and a laser irradiation device. It may be a heat treatment combining these.
　発熱抵抗体３０は、電圧が印加されることで発熱する抵抗体であり、図６に示すように、配線部２０を覆うように支持体１０の第１の領域１０１の全域に設けられている。この発熱抵抗体３０は、抵抗体ペーストを支持体１０に塗布して硬化させることで形成されている。この発熱抵抗体３０は、上述の配線部２０と同様に、支持体１０に直接形成されており、抵抗体ペーストを支持体１０に塗布した際に当該抵抗体ペーストが支持体１０の貫通孔１４内にも存在することとなる。このため、発熱抵抗体３０は、貫通孔１４内にも存在しており、貫通孔１４を介して支持体１０を貫通して支持体１０の両面を覆っている。なお、発熱抵抗体３０が、支持体１０の片面のみを覆っていてもよい。 The heating resistor 30 is a resistor that generates heat when a voltage is applied, and is provided over the entire first region 101 of the support 10 so as to cover the wiring portion 20 as shown in FIG. . The heating resistor 30 is formed by applying a resistor paste to the support 10 and curing it. The heating resistor 30 is formed directly on the support 10 in the same manner as the wiring portion 20 described above, and when the resistor paste is applied to the support 10, the resistor paste passes through the through holes 14 of the support 10. It will also exist inside. For this reason, the heating resistor 30 is also present in the through hole 14, and covers the both surfaces of the support 10 through the support 10 through the through hole 14. Note that the heating resistor 30 may cover only one side of the support 10.
　本実施形態における抵抗体ペーストは、高抵抗導電性ペーストである。こうした抵抗体ペーストの具体例としては、結晶性樹脂と、バインダ樹脂と、導電体と、を含有したペーストを例示することができる。結晶性樹脂としては、例えば、ポリオレフィン系樹脂やビニル系樹脂を例示することができる。バインダ樹脂としては、例えば、イソプロピレンゴム、ブタジエンゴム、ニトリルゴム、エチレンプロピレンゴム、シリコンゴム等の合成ゴム、或いは、熱可塑性エラストマ等を例示することができる。導電体としては、カーボンやグラファイト等を例示することができる。 The resistor paste in this embodiment is a high resistance conductive paste. As a specific example of such a resistor paste, a paste containing a crystalline resin, a binder resin, and a conductor can be exemplified. Examples of the crystalline resin include polyolefin resins and vinyl resins. Examples of the binder resin include synthetic rubbers such as isopropylene rubber, butadiene rubber, nitrile rubber, ethylene propylene rubber, and silicon rubber, or thermoplastic elastomers. Examples of the conductor include carbon and graphite.
　抵抗体ペーストを支持体１０に塗布する方法としては、特に限定されないが、上述の接触塗布法又は非接触塗布法のいずれを用いてもよい。また、抵抗体ペーストを硬化させるための熱源としては、上述の導電性ペーストを硬化させるものと同様のものを用いることができる。 Although it does not specifically limit as a method of apply | coating resistor paste to the support body 10, You may use any of the above-mentioned contact coating method or non-contact coating method. Moreover, as a heat source for hardening a resistor paste, the thing similar to what hardens the above-mentioned conductive paste can be used.
　この発熱抵抗体３０は、支持体１０に形成された配線部２０と直接接触しており、図２、図３及び図６に示すように、介在部分３１と被覆部分３２を含んでいる。 The heating resistor 30 is in direct contact with the wiring portion 20 formed on the support 10, and includes an intervening portion 31 and a covering portion 32 as shown in FIGS.
　介在部分３１は、相互に対向している対向配線部２３，２４の間に介在している部分であり、発熱に寄与する部分である。この介在部分３１は、貫通孔１４内にも存在しており、貫通孔１４を介して支持体１０を貫通して支持体１０の両面を覆っている。 The intervening portion 31 is a portion interposed between the opposing wiring portions 23 and 24 facing each other, and is a portion contributing to heat generation. The intervening portion 31 is also present in the through hole 14 and penetrates the support body 10 through the through hole 14 and covers both surfaces of the support body 10.
　これに対し、被覆部分３２は、介在部分３１の間に介在している部分であり、対向配線部２３，２４を覆うことで当該対向配線部２３，２４を保護する機能を有している。介在部分３１と被覆部分３２とは一体的に形成されている。 On the other hand, the covering portion 32 is a portion interposed between the interposition portions 31, and has a function of protecting the opposing wiring portions 23, 24 by covering the opposing wiring portions 23, 24. The interposition part 31 and the covering part 32 are integrally formed.
　図６に示すように、発熱抵抗体３０において給電配線部２１，２２の端部に対応する部分に開口３３が形成されており、この開口３３を介して給電配線部２１，２２の端部が発熱抵抗体３０から露出している。そして、図１に示すように、この開口３３を介して、給電配線部２１，２２にワイヤハーネス４０の圧着端子４１が接続されている。この圧着端子４１には電線４２の一端が接続されており、当該電線４２の他端にはコネクタ４３が接続されている。ワイヤハーネス４０のコネクタ４３を介して、配線部２０及び発熱抵抗体３０が、特に図示しない電力供給源に接続されている。 As shown in FIG. 6, an opening 33 is formed in a portion of the heating resistor 30 corresponding to the end portions of the power supply wiring portions 21 and 22, and the end portions of the power supply wiring portions 21 and 22 are formed through the openings 33. The heating resistor 30 is exposed. As shown in FIG. 1, the crimp terminal 41 of the wire harness 40 is connected to the power supply wiring portions 21 and 22 through the opening 33. One end of an electric wire 42 is connected to the crimp terminal 41, and a connector 43 is connected to the other end of the electric wire 42. The wiring part 20 and the heating resistor 30 are connected to a power supply source (not shown) via the connector 43 of the wire harness 40.
　そして、ワイヤハーネス４０を介して電力供給源から電力が供給されると、対向配線部２３，２４の間に生じた電位差によって、発熱抵抗体３０の介在部分３１に電流が流れ、抵抗加熱によって当該介在部分３１が発熱する。 When power is supplied from the power supply source via the wire harness 40, a current flows through the intervening portion 31 of the heating resistor 30 due to a potential difference generated between the opposing wiring portions 23 and 24, and the resistance heating causes the current to flow. The intervening portion 31 generates heat.
　この際、本実施形態では、配線部２０が支持体１０の貫通孔１４内に存在していると共に支持体１０の両面に設けられているので、配線部２０の大きな断面積が確保されている。このため、ヒータ面積が大きくなることに伴って配線が長くなった場合であっても、配線部２０の電気抵抗値の上昇を緩和すると共に、発熱エリア全域における給電量の平準化を図ることができる。 At this time, in the present embodiment, since the wiring portion 20 exists in the through hole 14 of the support 10 and is provided on both surfaces of the support 10, a large cross-sectional area of the wiring portion 20 is ensured. . For this reason, even when the wiring becomes longer as the heater area increases, the increase in the electrical resistance value of the wiring portion 20 can be mitigated and the power supply amount can be leveled over the entire heat generation area. it can.
　また、本実施形態では、発熱抵抗体３０の介在部分３１が貫通孔１４内に存在していると共に支持体１０の両面に設けられているので、発熱抵抗体３０の大きな断面積が確保されており、昇温速度の向上や発熱の均一化を図ることができる。また、発熱抵抗体３０が表裏対称の構造を有しているので、シートヒータ１の熱変形に対する耐性の向上を図ることもできる。 Moreover, in this embodiment, since the interposition part 31 of the heat generating resistor 30 exists in the through-hole 14 and is provided on both surfaces of the support body 10, a large cross-sectional area of the heat generating resistor 30 is ensured. Therefore, it is possible to improve the temperature rising rate and make the heat generation uniform. Further, since the heating resistor 30 has a symmetrical structure, the resistance of the seat heater 1 to thermal deformation can be improved.
　さらに、本実施形態では、被覆部分３２が対向配線部２３，２４を覆っているので、当該対向配線部２３，２４が保護されている。また、この被覆部分３２が介在部分３１と一体的に形成されているので、支持体１０に対する配線部２０の固着力の向上や配線部２０と発熱抵抗体３０との接触面積の増加を図ることもできる。 Furthermore, in this embodiment, since the covering portion 32 covers the opposing wiring portions 23 and 24, the opposing wiring portions 23 and 24 are protected. Further, since the covering portion 32 is formed integrally with the interposition portion 31, the fixing force of the wiring portion 20 to the support 10 is improved and the contact area between the wiring portion 20 and the heating resistor 30 is increased. You can also.
　さらに、本実施形態のシートヒータ１は、図４及び図６に示すように、相互に対向する対向配線部２３，２４の間に介在部分３１が形成されていない非形成部分３４を有している。この非形成部分３４からは、支持体１０が露出している。この非形成部分３４によって、対向配線部２３，２４の間の電気的な導通が遮断されるため、この非形成部分３４では発熱が生じない。 Further, as shown in FIGS. 4 and 6, the seat heater 1 of the present embodiment has a non-formed portion 34 in which no intervening portion 31 is formed between the opposing wiring portions 23 and 24 facing each other. Yes. The support 10 is exposed from the non-formed portion 34. Since the non-formed portion 34 cuts off electrical conduction between the opposing wiring portions 23 and 24, the non-formed portion 34 does not generate heat.
　本実施形態では、発熱抵抗体３０の図中上側の領域にスリット状の４つの非形成部分３４が設けられており、これらの非形成部分３４は、全体として、略半円形の形状を有している。この非形成部分３４は、乗員の大腿部の間の間隙に対応しており、発熱抵抗体３０において加温不要箇所に対応する部分の発熱を禁止している。すなわち、本実施形態では、発熱抵抗体３０において発熱するエリアの形状を加温必要箇所の形状に近似させることで、省電力化を図っている。なお、非形成部分３４の形状は、特に限定されない。 In this embodiment, four slit-shaped non-formed portions 34 are provided in the upper region of the heating resistor 30 in the figure, and these non-formed portions 34 have a substantially semicircular shape as a whole. ing. The non-formed portion 34 corresponds to a gap between the thighs of the occupant, and prohibits heat generation in a portion corresponding to a portion that does not require heating in the heating resistor 30. That is, in the present embodiment, power saving is achieved by approximating the shape of the heat generating area in the heating resistor 30 to the shape of the portion requiring heating. In addition, the shape of the non-formation part 34 is not specifically limited.
　また、この非形成部分３４では、発熱抵抗体３０が形成されておらず支持体１０のみが存在しているので、発熱抵抗部３０の柔軟性も向上する。 Further, in this non-formed portion 34, since the heating resistor 30 is not formed and only the support 10 is present, the flexibility of the heating resistor 30 is also improved.
　図９は本実施形態における配線部の変形例を示す平面図である。なお、この図９は上述の図５に対応する図であり、発熱抵抗体３０や保護部材５１，５２はこの図９に図示されていない。また、図１０はこの図９のX-X線に沿った断面図である。 FIG. 9 is a plan view showing a modification of the wiring portion in the present embodiment. FIG. 9 corresponds to FIG. 5 described above, and the heating resistor 30 and the protection members 51 and 52 are not shown in FIG. FIG. 10 is a sectional view taken along line XX in FIG.
　なお、図９及び図１０に示すように、シートヒータ１が、帯状の金属箔２５，２６を備えていてもよい。この金属箔２５，２６は、例えば、銅、アルミニウム、或いは、それらの合金等の導電性に優れた金属材料から構成されており、特に限定されないが、３５μｍ程度の厚さを有している。なお、金属箔２５，２６に代えて、極細線ワイヤ、或いは、樹脂繊維に金属箔を巻き付けた導電糸を用いてもよい。 In addition, as shown in FIG.9 and FIG.10, the sheet | seat heater 1 may be provided with the strip | belt-shaped metal foil 25,26. The metal foils 25 and 26 are made of, for example, a metal material having excellent conductivity such as copper, aluminum, or an alloy thereof, and have a thickness of about 35 μm, although not particularly limited. In place of the metal foils 25 and 26, a fine wire or a conductive yarn obtained by winding a metal foil around a resin fiber may be used.
　この金属箔２５は、第１の給電配線部２１と重複するように設けられている。この金属箔２５は、配線部２０を形成する前に支持体１０の第１の領域１０１に配置されており、金属箔２５を覆うように支持体１０上に第１の給電配線部３１を形成することで、金属箔２５と第１の給電配線部３１が接続されている。 The metal foil 25 is provided so as to overlap with the first power supply wiring portion 21. The metal foil 25 is disposed in the first region 101 of the support 10 before forming the wiring part 20, and the first power supply wiring part 31 is formed on the support 10 so as to cover the metal foil 25. Thus, the metal foil 25 and the first power supply wiring portion 31 are connected.
　同様に、金属箔２６は、第２の給電配線部２２と重複するように設けられている。この金属箔２６は、配線部２０を形成する前に支持体１０の第１の領域１０１に配置されており、金属箔２６を覆うように支持体１０上に第２の給電配線部３２を形成することで、金属箔２６と第１の給電配線部３２が接続されている。 Similarly, the metal foil 26 is provided so as to overlap the second power supply wiring portion 22. The metal foil 26 is disposed in the first region 101 of the support 10 before forming the wiring portion 20, and the second power supply wiring portion 32 is formed on the support 10 so as to cover the metal foil 26. As a result, the metal foil 26 and the first power supply wiring portion 32 are connected.
　なお、この場合には、発熱抵抗体３０の開口３３に加えて、給電配線部２１，２２にも開口２１１，２２１を形成しておくことで、ワイヤハーネス４０の電線４１を金属箔２５，２６に直接ハンダ接続してもよい。 In this case, in addition to the opening 33 of the heating resistor 30, the openings 211 and 221 are also formed in the power supply wiring portions 21 and 22 so that the wire 41 of the wire harness 40 is connected to the metal foils 25 and 26. Direct soldering may be used.
　こうした金属箔２５，２６を給電配線部２１，２２と重ねておくことで、ヒータ面積が大きくなることに伴って配線が長くなった場合であっても、給電配線部２１，２２の電気抵抗値の上昇を一層緩和すると共に、発熱エリア全域における給電量の平準化を一層図ることができる。 By superimposing these metal foils 25 and 26 on the power supply wiring sections 21 and 22, even when the wiring becomes longer as the heater area increases, the electric resistance value of the power supply wiring sections 21 and 22 is increased. Can be further mitigated, and the amount of power supply in the entire heat generation area can be further leveled.
　図１～図４に戻り、第１及び第２の保護部材５１，５２は、支持体１０全面を覆っており、第２の領域１０２で当該支持体１０に貼り付けられている。すなわち、本実施形態のシートヒータ１は、保護部材５１，５２が支持体１０に固定されることで形成された固定部５３をその外縁部に有している。 1 to 4, the first and second protective members 51 and 52 cover the entire surface of the support 10 and are attached to the support 10 in the second region 102. That is, the seat heater 1 of the present embodiment has a fixing portion 53 formed by fixing the protection members 51 and 52 to the support 10 at the outer edge portion.
　こうした保護部材５１，５２の一例としては、例えば、ポリエステル繊維からなる厚さ１．０ｍｍ程度のニードルフェルト（不織布）を例示することができる。また、保護部材５１，５２を支持体１０に貼り付ける接着剤としては、例えば、シリコン系樹脂等の接着剤を例示することができる。 As an example of such protective members 51 and 52, for example, a needle felt (nonwoven fabric) made of polyester fiber and having a thickness of about 1.0 mm can be exemplified. Moreover, as an adhesive agent which affixes the protection members 51 and 52 to the support body 10, adhesive agents, such as a silicon-type resin, can be illustrated, for example.
　なお、保護部材５１，５２として、ポリエステル以外の繊維からなる不織布、或いは、織布を用いてもよい。例えば、シートクッション１１０のシート表皮１２０側の保護部材５１として、熱伝導性の高いカーボン繊維を含む不織布を用いてもよい。これにより、ヒータ稼働時の熱伝搬ロスを低減して加温性能を高めることができる。因みに、上側の保護部材５１が十分なクッション性を有しているような場合には、シート表皮１２０下のワディング１４０を不要としてもよい。 In addition, as the protection members 51 and 52, you may use the nonwoven fabric which consists of fibers other than polyester, or a woven fabric. For example, as the protective member 51 on the seat skin 120 side of the seat cushion 110, a non-woven fabric containing carbon fibers having high thermal conductivity may be used. Thereby, the heat propagation loss at the time of heater operation can be reduced and heating performance can be improved. Incidentally, when the upper protection member 51 has sufficient cushioning properties, the wadding 140 under the seat cover 120 may be unnecessary.
　また、シートクッション１１０のシートパッド１３０側の保護部材５２として、摩擦係数の大きな表面を有する不織布を用いてもよい。これにより、シートパット１３０に対するシートヒータ１の密着性を高めることができ、シートヒータ１の設置作業性の向上を図ることができる。 Further, as the protective member 52 on the seat pad 130 side of the seat cushion 110, a nonwoven fabric having a surface with a large friction coefficient may be used. Thereby, the adhesiveness of the seat heater 1 with respect to the seat pad 130 can be improved, and the installation workability of the seat heater 1 can be improved.
　なお、接着剤を用いずに、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）、ポリアミド（ＰＡ）等の熱溶融接着性を有する繊維を用いて保護部材５１，５２を構成し、当該保護部材５１，５２を部分的に溶融させることで、保護部材５１，５２を支持体１０に貼り付けてもよい。 In addition, the protective members 51 and 52 are comprised using the fiber which has hot-melt adhesiveness, such as a polypropylene (PP), polyethylene (PE), and polyamide (PA), without using an adhesive agent, The said protective members 51 and 52 The protective members 51 and 52 may be affixed to the support 10 by partially melting.
　この固定部５３では、第１及び第２の保護部材５１，５２が支持体１０に貼り付けられているので、支持体１０によって第１及び第２の保護部材５１，５２の伸縮が抑制される。このため、例えば、粘着材等を用いずに、この固定部５３でシートヒータ１をシート１００のシート表皮１２０の裏面に直接縫い付けることが可能となるので、シートヒータ１の取付位置の精度向上や使用時の位置ズレの抑制を図ることができる。 In the fixing portion 53, since the first and second protection members 51 and 52 are attached to the support body 10, expansion and contraction of the first and second protection members 51 and 52 is suppressed by the support body 10. . For this reason, for example, the seat heater 1 can be directly sewn to the back surface of the seat skin 120 of the seat 100 without using an adhesive material or the like, so that the accuracy of the mounting position of the seat heater 1 is improved. And misalignment during use can be suppressed.
　図１１は本実施形態におけるシートヒータの設置例を示す断面図である。 FIG. 11 is a sectional view showing an installation example of the seat heater in the present embodiment.
　以上に説明したシートヒータ１は、図１１に示すように、自動車等の車両のシート１００に設置される。このシート１００は、例えば、当該シート１００に着座した乗員の臀部を支持するシートクッション１１０と、乗員の背部を支持するシートバック１５０と、を備えている。また、シートバック１５０には、乗員の頭部を支持するヘッドレスト１６０が装着されている。 The seat heater 1 described above is installed on a seat 100 of a vehicle such as an automobile as shown in FIG. The seat 100 includes, for example, a seat cushion 110 that supports an occupant's buttocks seated on the seat 100 and a seat back 150 that supports an occupant's back. The seat back 150 is equipped with a headrest 160 that supports the head of the occupant.
　このシートヒータ１は、上述のように、対向配線部２３，２４への通電によって発熱抵抗体３０を抵抗加熱することで乗員を加温する。この際、本実施形態では、一対の対向配線部２３，２４の間に介在部分３１が設けられていない非形成部分３４をシートヒータ１が有しているので、加温が必要な箇所に対して発熱エリアを最適化することができ、省電力化を図ることができる。 As described above, the seat heater 1 heats the occupant by resistance heating the heating resistor 30 by energizing the opposing wiring portions 23 and 24. At this time, in the present embodiment, since the seat heater 1 has the non-formed portion 34 in which the interposition portion 31 is not provided between the pair of opposing wiring portions 23 and 24, the portion where heating is required Thus, the heat generation area can be optimized and power saving can be achieved.
　なお、以上説明した実施形態は、本発明の理解を容易にするために記載されたものであって、本発明を限定するために記載されたものではない。したがって、上記の実施形態に開示された各要素は、本発明の技術的範囲に属する全ての設計変更や均等物をも含む趣旨である。 The embodiment described above is described for easy understanding of the present invention, and is not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.
　例えば、上述の実施形態では、車両のシート１００に設置するシートヒータについて説明したが、シートヒータ１の用途は、特に車両に限定されず、例えば、車両以外で使用される座席やベッド等に用いられてもよい。 For example, in the above-described embodiment, the seat heater installed on the seat 100 of the vehicle has been described. However, the use of the seat heater 1 is not particularly limited to the vehicle, and for example, used for a seat or a bed used outside the vehicle. May be.
１…シートヒータ
　１０，１１０Ｂ…支持体
　　　１０１…第１の領域
　　　１０２…第２の領域
　　１１…経糸
　　　１１１…絶縁性繊維
　　１２…緯糸
　　　１２１…絶縁性繊維
　　１３…絶縁性繊維
　　１４…貫通孔
　２０…配線部
　　２１…第１の給電配線部
　　２２…第２の給電配線部
　　　２１１，２２１…開口
　　２３…第１の対向配線部
　　２４…第２の対向配線部
　　２５，２６…金属箔
　３０…発熱抵抗体
　　３１…介在部分
　　３２…被覆部分
　　３３…開口
　　３４…非形成部分
　４０…ワイヤハーネス
　　４１…圧着端子
　　４２…電線
　　４３…コネクタ
　５１，５２…第１，第２の保護部材
　　５３…固定部
１００…シート
　１１０…シートクッション
　　１２０…シート表皮
　　１３０…シートパッド
　　１４０…ワディング
　１５０…シートバック
　１６０…ヘッドレスト DESCRIPTION OF SYMBOLS 1 ... Sheet heater 10, 110B ... Support body 101 ... 1st area | region 102 ... 2nd area | region 11 ... Warp 111 ... Insulating fiber 12 ... Weft 121 ... Insulating fiber 13 ... Insulating fiber 14 ... Through-hole 20 ... Wiring Part 21: First power supply wiring part 22 ... Second power supply wiring part 211, 221 ... Opening 23 ... First counter wiring part 24 ... Second counter wiring part 25, 26 ... Metal foil 30 ... Heating resistor 31 ... Intervening part 32 ... Covering part 33 ... Opening 34 ... Non-forming part 40 ... Wire harness 41 ... Crimp terminal 42 ... Electric wire 43 ... Connector 51, 52 ... First and second protective members 53 ... Fixing part 100 ... Sheet 110 ... Seat cushion 120 ... Seat skin 130 ... Seat pad 140 ... Wadding 150 ... Seat back 160 ... Headrest

Claims (6)

  1. 　複数の貫通孔を有するシート状の支持体と、
    　前記支持体に設けられ、相互に対向する一対の対向配線部と、
    　前記支持体に設けられ、前記対向配線部よりも電気的な抵抗の高い発熱抵抗体と、を備えたシートヒータであって、
    　前記発熱抵抗体は、前記対向配線部の間に設けられた介在部分を含み、
    　前記介在部分は、前記支持体を覆っており、
    　前記シートヒータは、前記対向配線部の間に前記介在部分が設けられていない非形成部分を有するシートヒータ。     A sheet-like support having a plurality of through holes;
    A pair of opposing wiring portions provided on the support and facing each other;
    A heating heater provided on the support and having a heating resistor having a higher electrical resistance than the opposing wiring portion,
    The heating resistor includes an interposition portion provided between the opposing wiring portions,
    The intervening portion covers the support;
    The seat heater has a non-formed portion in which the interposition portion is not provided between the opposing wiring portions.
  2. 　請求項１に記載のシートヒータであって、
    　　前記介在部分は、前記貫通孔内にも存在しているシートヒータ。     The seat heater according to claim 1,
    The intervening portion is a seat heater that also exists in the through hole.
  3. 　請求項２に記載のシートヒータであって、
    　前記対向配線部は、前記貫通孔を介して前記支持体を貫通して前記支持体の両面を覆っており、
    　前記発熱抵抗体の前記介在部分も、前記貫通孔を介して前記支持体を貫通して前記支持体の両面を覆っているシートヒータ。     The seat heater according to claim 2,
    The counter wiring portion passes through the support through the through hole and covers both surfaces of the support.
    The seat heater in which the intervening portion of the heating resistor also penetrates the support through the through hole and covers both surfaces of the support.
  4. 　請求項１～３のいずれか一項に記載のシートヒータであって、
    　前記発熱抵抗体は、前記対向配線部を覆うと共に前記介在部分と一体的に形成された被覆部分を含むシートヒータ。     The seat heater according to any one of claims 1 to 3,
    The heating resistor includes a covering portion that covers the counter wiring portion and is integrally formed with the interposition portion.
  5. 　請求項１～４のいずれか一項に記載のシートヒータであって、
    　前記シートヒータは、
    　前記支持体に設けられ、前記対向配線部と一体的に形成された給電配線部と、
    　前記給電配線部と重複するように設けられた金属箔又は金属線と、を含むシートヒータ。     The seat heater according to any one of claims 1 to 4,
    The seat heater is
    A power supply wiring portion provided on the support and integrally formed with the counter wiring portion;
    A sheet heater including a metal foil or a metal wire provided so as to overlap with the power supply wiring portion.
  6. 　請求項１～５のいずれか一項に記載のシートヒータであって、
    　前記シートヒータは、前記発熱抵抗体を覆うように前記支持体の両面に積層された第１及び第２の保護部材を備え、
    　前記第１及び前記第２の保護部材は、前記支持体の外縁部で固定されているシートヒータ。     The seat heater according to any one of claims 1 to 5,
    The seat heater includes first and second protective members laminated on both surfaces of the support so as to cover the heating resistor,
    The first and second protection members are seat heaters fixed at an outer edge portion of the support.
PCT/JP2019/011480 2018-05-31 2019-03-19 Seat heater WO2019230146A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-105297 2018-05-31
JP2018105297A JP2019208658A (en) 2018-05-31 2018-05-31 Seat heater

Publications (1)

Publication Number Publication Date
WO2019230146A1 true WO2019230146A1 (en) 2019-12-05

Family

ID=68696925

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/011480 WO2019230146A1 (en) 2018-05-31 2019-03-19 Seat heater

Country Status (2)

Country Link
JP (1) JP2019208658A (en)
WO (1) WO2019230146A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7348058B2 (en) * 2019-12-25 2023-09-20 株式会社フジ医療器 Massage machine
CN116061784B (en) * 2023-03-20 2023-12-26 江苏九州电器有限公司 Over-temperature protection structure of vehicle seat heater

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003109803A (en) * 2001-09-28 2003-04-11 Matsushita Electric Ind Co Ltd Flexible ptc sheetlike heating element and its manufacturing method
JP2011003330A (en) * 2009-06-17 2011-01-06 Panasonic Corp Planar heating element and seat using the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003109803A (en) * 2001-09-28 2003-04-11 Matsushita Electric Ind Co Ltd Flexible ptc sheetlike heating element and its manufacturing method
JP2011003330A (en) * 2009-06-17 2011-01-06 Panasonic Corp Planar heating element and seat using the same

Also Published As

Publication number Publication date
JP2019208658A (en) 2019-12-12

Similar Documents

Publication Publication Date Title
KR100759648B1 (en) Flexible ptc heating element
EP2127473B1 (en) Sheet heating element
WO2019230146A1 (en) Seat heater
WO2017006303A1 (en) Radiant heater for vehicle
JP2008269914A (en) Flat heating element
KR20140029245A (en) Electrical heating device
JP2012218734A (en) Device for heating complexly formed surface
CN109952810B (en) Radiant heating device
KR20200072317A (en) Sheet type heating element and armrest for vehicle door including the same
JP5440378B2 (en) Cloth material
JP5444886B2 (en) Skin material for vehicle seats
WO2019230145A1 (en) Sensor-equipped seat heater
JPH10335051A (en) Toilet seat heater
JPH1197160A (en) Sheet heater
JP3823744B2 (en) Planar heating element
JP2019026232A (en) Seat heater and seat cover containing the same
US20220039213A1 (en) Flexible and stretchable heater based on conductive textile or conductive polymeric foam
CN112703817A (en) Robust printed heater connection for automotive applications
JP7546140B2 (en) Planar heating element
KR100762344B1 (en) A sheet heater
JP2011004936A (en) Skin material of vehicle seat
JP5516614B2 (en) Planar heating element
JP7574873B2 (en) Wiring materials
JP4729862B2 (en) Planar heating element
KR101401539B1 (en) a heat transfer sheet for preventing electromagneticwave

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19811997

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19811997

Country of ref document: EP

Kind code of ref document: A1