WO1994013117A1 - Tapis electrique - Google Patents

Tapis electrique Download PDF

Info

Publication number
WO1994013117A1
WO1994013117A1 PCT/JP1993/001711 JP9301711W WO9413117A1 WO 1994013117 A1 WO1994013117 A1 WO 1994013117A1 JP 9301711 W JP9301711 W JP 9301711W WO 9413117 A1 WO9413117 A1 WO 9413117A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
peripheral portion
cord
wire
electric heating
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/JP1993/001711
Other languages
English (en)
Japanese (ja)
Inventor
Mitsuhiro Yamamoto
Yukio Suyama
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.)
SVP INDUSTRIES Ltd Pty
Mitsubishi Corp
Original Assignee
SVP INDUSTRIES Ltd Pty
Mitsubishi Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SVP INDUSTRIES Ltd Pty, Mitsubishi Corp filed Critical SVP INDUSTRIES Ltd Pty
Priority to AU55959/94A priority Critical patent/AU5595994A/en
Publication of WO1994013117A1 publication Critical patent/WO1994013117A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D13/00—Electric heating systems
    • F24D13/02—Electric heating systems solely using resistance heating, e.g. underfloor heating
    • F24D13/022—Electric heating systems solely using resistance heating, e.g. underfloor heating resistances incorporated in construction elements
    • 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 [2D] plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional [2D] plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Definitions

  • the present invention relates to an electric heating mat for heating or melting snow. More specifically, it can be installed on the floor or wall of a store or the place where you stand upright, such as in a kitchen, for heating purposes, or installed on a light or frozen shading road or roof to prevent freezing. It relates to an electric heating mat that can be used for preventing or melting snow.
  • floor-standing or wall-mounted electricity is used for floors such as Sanwa clay or outdoor floors where people stand and work on shoes or slippers, or for linoleum floors in kitchens where moisture leaks out.
  • Stoves Oil stoves are placed on the floor or hung on walls to keep them warm with radiant heat.
  • an electric heating cartridge in which an electric heating heater is incorporated in the power unit of the woven fabric is used.
  • the electric stove and the like can warm the body by radiant heat, that is, radiation by infrared rays, but cannot sufficiently warm the feet through which cool air flows. It is also conceivable to use the electric heating cartridge on the floor surface such as outdoors or Sanwa clay. There are problems such as easy soiling, damaging the fabric, and heat escaping down. Cannot use a conventional electric heating cartridge as it is.
  • the present invention applies heat directly to the soles of the feet, as in a conventional electric heating cartridge, even outdoors, and on floors such as Sanwa clay, concrete, and linoleum. Furthermore, the technical issue is to provide an electric heating mat that can provide warmth from the feet even with radiant heat. Another object of the present invention is to provide an electric heating mat which can be easily used for preventing freezing on a road surface which is easily frozen and for melting snow on a roof or the like.
  • an upper layer composed of a plurality of synthetic resin or rubber tubes arranged at an interval on each other; and (b) a lower surface of the upper layer so as to intersect the upper layer tube.
  • an electric heating mat comprising: a lower layer made of a plurality of synthetic resin or rubber wire rods which are arranged and joined at intervals with each other; and (c) a cord heater inserted into the upper layer tube.
  • the cord heater for example, a heater in which a heating wire is spirally wound around the outer periphery of a core wire and an outer jacket is provided on the outer periphery can be adopted.
  • the wire constituting the lower layer is a tube, and furthermore, a component for adjusting the on / off or the magnitude of the current passed through the cord heater according to the temperature generated by the heat generated by the cord heater.
  • a roller is provided.
  • a heat-sensitive wire for sending a temperature signal to the controller together with the cord heater is inserted into the upper tube.
  • Such an integrated code is configured by spirally winding a heating wire around the outer periphery of a core wire, providing an intermediate layer around the outer periphery, spirally winding a heat-sensitive wire around the outer periphery, and further providing an outer jacket around the outer periphery. sell.
  • the cords such as the cord heater and the integrated cord can be taken out from the end of the upper tube and then inserted into the other tube from the end on the same side.
  • Cord and upper and lower tubing It is preferable to provide a peripheral member made of a synthetic resin or rubber for enclosing the end portion.
  • the upper layer tube and the lower layer wire or tube are preferably made of soft polychlorinated bur, for example, by extrusion.
  • the peripheral member for an electric heating mat is made of a synthetic resin or rubber material having an equal cross-sectional length, and has an inner peripheral portion having a flat U-shaped cross section with an open side facing inward, and an outer peripheral portion of the inner peripheral portion. And an outer peripheral portion having a flat triangular cylindrical cross-section provided so that the inclined surface faces outward and upward.
  • a step is formed at an upper or lower corner of the inner part of the inner peripheral part.
  • the peripheral member is manufactured from a soft polychlorinated bur by, for example, combining extrusion molded members in a frame shape.
  • the cord heater When an electric current is applied to the cord heater of the electric heating mat of the present invention, the cord heater generates heat, and the tube in the upper layer, through which the cord heater passes, is heated. Therefore, the person standing on the electric heating box is affected by the heat transmitted through the soles. Further, the radiant heat generated by the upper layer warms the entire foot.
  • the upper layer is supported by the intersecting lower layers, and the lower layer made of synthetic resin or rubber is in contact with the floor, so less heat is transferred from the heated upper layer to the floor and escapes. Furthermore, since the cord heater passes through the upper tube, it is protected from the impact of falling objects from above in combination with the elasticity of the lower layer.
  • the wiring is simple and the manufacture is easy. Further, when the portion of the cord heater protruding from the end of the tube is protected by the peripheral member, disconnection and the like are prevented even when stepping on the cord heater. Furthermore, since the upper layer and the lower layer are physically connected by the peripheral member, even if the welded portion is shallow, it can be assembled tightly.
  • the ends of the upper and lower tubes are inserted into the inner periphery of the U-shaped cross section, and the return cord heater can be wired through the triangular outer periphery. Therefore, the wiring is not complicated, and there is no fear that the cord heaters cross each other to locally generate a high temperature.
  • peripheral member absorbs the step between the upper tube and the lower tube in the step portion, the peripheral member is not only for the side edge where the upper layer end portion is lined up, but also for the side edge where the lower layer end line up Can be mounted reliably and stably.
  • FIG. 1 is a partially cutaway perspective view showing an embodiment of the electric heating mat of the present invention.
  • Fig. 2 is an enlarged perspective view of the main part of the electric heating unit of Fig. 1,
  • FIGS. 3 'and 4 are a sectional view taken along the line II-II
  • FIG. 5 is a cross-sectional view showing one embodiment of a peripheral member in the electrothermal mat of the present invention.
  • FIG. 6 is a perspective view showing one embodiment of a controller in the electrothermal mat of the present invention.
  • FIGS. 7 and 8 each show another embodiment of the electric heating mat of the present invention. Part plan view,
  • Fig. 9 is a perspective view of the connector in the electric heating mat of Fig. 8,
  • FIG. 10 is a side view showing one embodiment of the combination code according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
  • the electrothermal mat A shown in FIG. 1 includes a rectangular net-shaped mat body 1, a peripheral member 2 covering the periphery thereof, and a controller 3 attached to a part of a corner.
  • the mat body 1 is welded to a lower surface side of an upper layer 5 composed of a number of synthetic resin tubes 4 arranged in parallel at relatively small intervals. It comprises a lower layer 7 composed of a number of synthetic resin tubes 6.
  • the tubes 6 of the lower layer 7 are arranged at a distance W 2 larger than the distance W i of the tubes 4 of the upper layer 5 so as to be orthogonal to the tubes 4 of the upper layer and parallel to each other. ing. '
  • the materials of the upper and lower tubes 4, 6 are selected in consideration of the operating temperature range of the electric heating mat.
  • synthetic resins such as heat-resistant soft polychlorinated vinyl and polyethylene, or synthetic rubbers such as SBR and NBR, as well as fluorine rubber and fluorine resin are used.
  • Tubes 4 and 6 are joined by heat welding or bonding.
  • the outer diameter of the tube is, for example, about 5 to 15 mm, and the inner diameter is about 3 to 10 mm. It is preferable that the engagement S between the upper and lower tubes 4, 6 is shallower, and at least the cavity (4a in FIG. 4) of the upper tube 4 is not so much collapsed.
  • the engagement S is preferably about 2 to 6 mm.
  • a solid rod may be used for the lower layer 7 instead of the tube 6.
  • a mat obtained by welding the upper layer tube 4 and the lower layer tube 6 is commercially available from Mitsuboshi Co., Ltd. (imported and sold from Australia), or is used as it is or with some modifications. be able to.
  • a cord tube 8 is inserted into the tube 4 of the upper layer 5 except for the tube covered by the peripheral member 2.
  • the cord 8 coming out of the controller 3 enters at one end of the tube 4, exits once from the other end, is bent into a U-shape, and ends on the same side of the adjacent tube 4. It is inserted again from the part. As a whole, it passes through the tubes 4 of the upper layer 5 arranged in parallel while being alternately turned back and forth.
  • the cord heater 8 a coming out of the end of the final tube 4 on the controller side passes through the inside of the peripheral member 2 and returns to the controller 3. That is, one cord heater 8 is wired in a closed loop.
  • the cord heaters 8 may be provided, for example, every one or two tubes without passing through all the tubes 4.
  • a code heater such as a resistance wire made of a copper-tin alloy coated with a polychlorinated valve or the like can be used.
  • a cord or the like in which such a resistance wire (heating wire) is spirally wound around the outer periphery of a synthetic resin core wire and a jacket is provided on the outer periphery may be used.
  • a cord-shaped temperature sensor 9 is wired to the tube 4 together with a cord heater 8.
  • the temperature sensor 9 may be wired for each tube 4, but in the case of FIG.
  • a sensor whose resistance value changes with temperature for example, a nickel wire can be used.
  • a temperature sensor for detecting a partial temperature such as a bimetal type or a thermocouple type may be provided at one or several places.
  • the temperature sensor 9 is connected via an amplifying element in the controller 3 to a switching element for switching the current flowing through the code heater 8 on and off.
  • the current is cut off when the temperature of the electrothermal mat A rises above a predetermined upper limit temperature, and the current flows again when the temperature falls below the lower limit.
  • the lower limit can be adjusted with the operation lever 10 or the like. Therefore, the temperature of the electric heating mat A can be adjusted according to the temperature set by the operating lever 10 so as to maintain a desired temperature.
  • a temperature control mechanism can prevent abnormally high temperature of the electrothermal mat A, and is safe.
  • the same one as used in a conventional hot power unit or the like can be employed.
  • FIG. 6 is a perspective view showing an embodiment of the controller.
  • Controller 3 is divided into upper and lower cases, 11 and 12, control board 14 housed in bulkhead 13 of lower case 12 and outside of upper case 11 It consists of an operation lever (10 in Fig. 1).
  • a cylindrical boss 15 for passing a screw is formed at each corner of the partition wall 13.
  • the L-shaped portion 16 outside the partition wall 13 is a portion for connecting the controller 3 to the mat body 1 with a part of the corner of the mat body 1 and an end of the peripheral member 2 interposed therebetween. .
  • a semicircular notch 18 for passing the lower tube 6 is formed in one side 17 of the lower case 1 in accordance with the pitch of the lower tube 6, and the other side 1 9 has a semicircular notch 20 for sandwiching the upper tube 4.
  • an upright wall 21 is also provided inside the side wall 19 of the upper case 12, and one lower tube 6 is provided between the side wall 19 and the upright wall 21. I try to pinch it.
  • the upper tube 4 is passed through the notch 20 on the upper edge of the side 19 and the notch 22 on the upper edge of the standing wall 21.
  • the upper case 1 also has an upright wall to hold one lower tube 6 23, notches 24, bosses 25 for screws to pass through, etc. are provided.
  • the boss 25 is fitted into the boss 15 of the lower case 12 and functions as an alignment pin.
  • An operation lever 10 is slidably provided in a slit formed between the upper case 11 and the lower case 12.
  • a tubular body 27 that is open at the top is used to support an indicator that indicates the on / off state of the current (for example, a light-emitting diode mounted on the control board) so that it can be exposed to the outside. It is erected.
  • the wide cutouts 28, 29 of the upper case 11 and the lower case 12 are for inserting the ends of the peripheral member 3 respectively, and the narrow cutouts 28a, 29 a is for passing the power cord 29 b.
  • the symbol SW is an on / off switch for power supply.
  • the peripheral member 3 has a rectangular frame-like planar shape, and one corner is cut out to accommodate the controller 3. The end faces of the cutout portions are in contact with the partition walls 13 of the controller 3.
  • the peripheral member 3 has an inner peripheral portion 30 having a flat U-shaped cross section for inserting the upper tube 4 and the lower tube 6, and an outer peripheral portion 3 having a flat triangular cylindrical shape.
  • It is a long material made of synthetic resin or rubber, which is integrally formed from 1. Note that the material is preferably soft polyvinyl chloride. This material can be formed into a rectangular frame by forming a long material having an equal cross section by extrusion molding, cutting the ends at 45 °, and welding them together.
  • the upper surface 32 and the lower surface 33 of the inner peripheral portion 30 having the U-shaped cross section are made relatively thin so that they do not feel too uncomfortable when stepped on.
  • the outer peripheral part 31 of the triangular cylindrical shape is also for providing an inclined surface outside so that the corner part does not give a feeling of strangeness.
  • the diameter of the lower tube 3 is the same as the diameter of the lower tube 6 at the inner lower part of the inner peripheral part, that is, at the corner of the inner surface of the wall 30 a and the lower surface 33 that separates the inner peripheral part 30 and the outer peripheral part 31.
  • a height step 30b is provided. Therefore, on the mat body 1 When covering the side of the tube 4 on the side where the end faces of the tubes 4 are lined up (short side in Fig.
  • the reason why the outer peripheral portion 31 is hollow is to accommodate the return portions 8 a and 9 a of the code heater 8 and the temperature sensor 9. Since the return portions 8a and 9a are arranged in a plane so as not to intersect with other portions as described above, it is possible to avoid a partial rise in temperature at the intersection. Further, since the partial high temperature is prevented, the softener is prevented from moving from the coating of the cord heater 8 to the tube side, and the curing of the cord heater 8 can be prevented. A normal conductor can be used for the return portions 8a and 9a of the cord heater 8 and the temperature sensor 9.
  • the power supply cord is directly connected to the force mat body 1 for fixing the controller 3 provided with the switching element and the operation lever 10 to the mat body 1, and the plug is simply removed.
  • a simple configuration in which the on / off operation is performed by insertion can also be adopted.
  • the controller 3 may be connected via a cord (cord heater and a temperature sensor or its conductor) 34 connected to the mat body 1. In that case, the code 34 can be extended so that the controller 3 is hung on a wall.
  • the cord 34 is further detachably connected to a connector 135 provided on the mat body 1 by a plug 35a.
  • a connector 135 provided on the mat body 1 by a plug 35a.
  • the plug 35a can be removed and used simply as a mat.
  • the cord 34, the controller 3 and the main unit 1 can be stored separately, which is convenient.
  • FIG. 9 shows one embodiment of such a connector 35. You. On the side surface of the connector 35, there is provided a triangular prism-shaped projection 36 which can be fitted into the triangular cylindrical outer peripheral portion 31 of the peripheral member 2, for connecting the connector 35 to the mat body 1. I'm sure.
  • the integrated code 36a is composed of a core 37 made of synthetic resin, a heating wire 38 spirally wound around the outer periphery thereof, and an intermediate covering 39 made of heat-resistant synthetic resin covering the outer periphery thereof. It consists of a heat-sensitive wire 40 spirally wound around the outer periphery, and a jacket 41 further covering the outer periphery.
  • the core 37 can be made of, for example, a line of polyethylene terephthalate having a diameter of 0.3 to 0.6 nun.
  • the heating wire 38 is preferably a copper-tin alloy wire having a specific resistance of about 3 to 5 u ⁇ cm. This is, for example, a ribbon having a thickness of 0.03 to 0.06 mm and a width of 0.2 to (! 4 mm), and is spirally wound around the core 37 at a winding pitch of about 0.6 to 1.2 mm. Is formed of, for example, a polyamide resin, and is coated with a thickness of about 0.2 to 0.3 ⁇ .
  • the heat-sensitive wire 40 has a specific diameter of about 0.08 to It is preferably about 0.12 mm, which has a winding pitch of about 0.7 to 0.8 mm, and is spirally wound in the opposite direction to the heating wire 38.
  • the jacket 41 is preferably made of heat-resistant polychlorinated rubber, for example, after finishing.
  • the diameter of the electric heating mat A is 1.5 to 3.0 nun
  • the electric heating mat A constructed as above is used for standing work places, kitchens, factories, etc. where ordinary heating equipment cannot provide sufficient heating action, such as a shop in a station yard. It can be warm from your feet when used on floors where standing work is required. In some cases, it can be used by hanging it on a wall. When used on the floor, it is preferable to use a size of about 450 mm x 100 Omm, 900 Omm x 120 mm. It can be longer and larger.
  • the rectangular mat body is shown in terms of ease of manufacture and the like.
  • the shape of the electric heating mat of the present invention is not particularly limited to a rectangle, and its use is not particularly limited.
  • Various shapes, such as a circle and a triangle, can be adopted depending on the location.
  • the upper tube may be arranged in a spiral shape, and the lower tube or wire may be arranged in the radial direction.
  • the upper and lower tubes may be welded so as to cross each other diagonally, and the upper tube may be arranged in a spiral shape.
  • the peripheral member it is preferable to cover the peripheral member according to the shape.
  • the upper layer tube may contain ceramic particles to improve the heating effect by the radiant heat of far infrared rays.
  • a sealing material may be interposed or filled in a gap between the peripheral member and the tube of the mat body to improve waterproofness.
  • the electric heating mat according to the present invention has high air permeability and moderate elasticity. And it has a certain degree of waterproofness, and since the cord tube is inserted into the upper layer of tubes, it can be used comfortably as a heater to warm from the feet in shops, outdoors, and kitchens. Furthermore, because of its high breathability and elasticity, it can be used in all seasons.
  • It can also be used as a simple anti-freezing device for road surfaces that are easily frozen, or as a snow melting device for roofs and roads.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Heating Systems (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Road Paving Structures (AREA)

Abstract

L'invention concerne un appareil de chauffage utilisable en extérieur, lequel permet de chauffer les pieds. Un tapis électrique (A) comprend un corps de tapis (1) tridimensionnel en forme de treillis, dans lequel des tubes (6) formant une couche inférieure sont soudés aux surfaces sous-jacentes de tubes (4) formant une couche supérieure, de manière à se croiser mutuellement, des dispositifs de chauffage (8) à cordon insérés dans les tubes (4) formant la couche supérieure, ainsi qu'un élément de bordure périphérique (2) destiné à recouvrir des parties exposées des tubes (4) des dispositifs de chauffage (8) à cordon, ainsi que les bords périphériques du corps du tapis (1).
PCT/JP1993/001711 1992-11-21 1993-11-22 Tapis electrique Ceased WO1994013117A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU55959/94A AU5595994A (en) 1992-11-21 1993-11-22 Electric mat

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4/335164 1992-11-21
JP33516492A JP3209813B2 (ja) 1992-11-21 1992-11-21 電熱マット

Publications (1)

Publication Number Publication Date
WO1994013117A1 true WO1994013117A1 (fr) 1994-06-09

Family

ID=18285487

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1993/001711 Ceased WO1994013117A1 (fr) 1992-11-21 1993-11-22 Tapis electrique

Country Status (3)

Country Link
JP (1) JP3209813B2 (fr)
AU (1) AU5595994A (fr)
WO (1) WO1994013117A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2138740C1 (ru) * 1996-02-26 1999-09-27 Ду Ниун Ким Способ и устройство для обогрева комнаты при помощи трубы с электрически нагретой водой
GB2338294A (en) * 1998-06-11 1999-12-15 James Joseph Walsh Heated floor mat

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3400334A4 (fr) * 2016-01-04 2019-06-19 nVENT SERVICES GMBH Passerelle antigivre avec commande intégrée et commutation
JP6704114B2 (ja) * 2016-03-30 2020-06-03 パナソニックＩｐマネジメント株式会社 電気採暖具のコントローラ

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036147U (fr) * 1973-07-27 1975-04-16
JPS5030095Y2 (fr) * 1971-03-12 1975-09-04
JPS5220034U (fr) * 1975-07-31 1977-02-12
JPS6027187U (ja) * 1983-07-29 1985-02-23 住金鋼材工業株式会社 流雪溝用融雪パネル
JPS6292586U (fr) * 1985-11-30 1987-06-13

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5030095Y2 (fr) * 1971-03-12 1975-09-04
JPS5036147U (fr) * 1973-07-27 1975-04-16
JPS5220034U (fr) * 1975-07-31 1977-02-12
JPS6027187U (ja) * 1983-07-29 1985-02-23 住金鋼材工業株式会社 流雪溝用融雪パネル
JPS6292586U (fr) * 1985-11-30 1987-06-13

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2138740C1 (ru) * 1996-02-26 1999-09-27 Ду Ниун Ким Способ и устройство для обогрева комнаты при помощи трубы с электрически нагретой водой
GB2338294A (en) * 1998-06-11 1999-12-15 James Joseph Walsh Heated floor mat
GB2338294B (en) * 1998-06-11 2000-06-21 James Joseph Walsh Heated floor mat

Also Published As

Publication number Publication date
JPH06341653A (ja) 1994-12-13
AU5595994A (en) 1994-06-22
JP3209813B2 (ja) 2001-09-17

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