WO2017028836A1 - Unité de détection de température et agencement d'un capteur de température sur ou dans un dispositif de thermorégulation - Google Patents

Unité de détection de température et agencement d'un capteur de température sur ou dans un dispositif de thermorégulation Download PDF

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Publication number
WO2017028836A1
WO2017028836A1 PCT/DE2016/000322 DE2016000322W WO2017028836A1 WO 2017028836 A1 WO2017028836 A1 WO 2017028836A1 DE 2016000322 W DE2016000322 W DE 2016000322W WO 2017028836 A1 WO2017028836 A1 WO 2017028836A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature sensor
temperature
thermally conductive
sensor unit
unit according
Prior art date
Application number
PCT/DE2016/000322
Other languages
German (de)
English (en)
Inventor
János OROSZ
Miklós KRAMARICS
Original Assignee
Gentherm Gmbh
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 Gentherm Gmbh filed Critical Gentherm Gmbh
Publication of WO2017028836A1 publication Critical patent/WO2017028836A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/02—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values
    • G01K3/06—Thermometers giving results other than momentary value of temperature giving means values; giving integrated values in respect of space
    • 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
    • B60N2/5678—Heating or ventilating devices characterised by electrical systems
    • B60N2/5685—Resistance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/04—Hand wheels
    • B62D1/06—Rims, e.g. with heating means; Rim covers
    • B62D1/065—Steering wheels with heating and ventilating means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54

Definitions

  • the present invention relates to an electrical temperature sensor unit and to an arrangement of an electrical temperature sensor on or in a tempering device, in particular an electric heating device which is part of a vehicle interior.
  • temperature control devices are integrated for different purposes.
  • vehicle seats, steering wheels, seat covers, trim elements of passenger compartments are equipped with temperature control devices.
  • tempering devices may also be incorporated in armchairs, office equipment, battery heaters, aircraft wings, tanks, liquid, gas or other fluid lines.
  • Tempering devices, in particular electrical heating elements and heating conductors are often arranged on curved or contoured surfaces of objects and are often exposed to strong mechanical loads. At the same time, they must be quick and easy to install. To enable temperature monitoring of the temperature control devices, these devices are usually equipped with temperature sensors. In this case, a reliable operation of the temperature sensor is important.
  • Proper and function-oriented mounting and positioning of the temperature sensor are essential in order to obtain correct and reusable measurement data.
  • a faulty arrangement of the temperature sensor with respect to the heating means of a temperature control device can lead to a temperature control devices that are not optimally controlled by a temperature control device, which can affect in particular the comfort of the user of the temperature control device and in the given case also the safety of the temperature control device.
  • DE 10 2012 000 977 A1 describes a temperature control device for surfaces of complex shapes, in which the temperature control device has a heat distribution device which covers at least parts of a surface to be tempered.
  • This heat distribution device may include a heating resistor disposed between two flexible metal layers at least partially over the sides of the Resist heating resistor to sweep over an area that is greater than the base of the heating resistor.
  • NTC sensors negative temperature coefficient sensors
  • NTC sensors are often used to detect the temperature values, which may, for example, be covered with a nonwoven covering or sheathed by it.
  • a defective placement of the sensor in the attachment for example in a transition region between an armrest and a seat cushion of a vehicle seat, which is equipped with a seat heater, as described in Figures 3A to 3C.
  • a temperature control device such a seat heating can be regulated.
  • the differences in placement lead to inconsistent measured values for temperature control devices of the same type in a product series.
  • temperature sensors are usually very sensitive to heat, depending on the placement of the temperature sensor with respect to the heating means of the temperature control device, different heating curves for the temperature control devices result, which can lead to different interval lengths for temperature regulation times of the temperature control device. This results in a certain unreliability of the temperature sensors, since different temperature regulation times result in the control of identically constructed temperature control devices.
  • the object of the invention is seen in providing an improved Temperatursensorpositi- oning and -befest Trent, which allow uniform and reliable measurements within a series of products.
  • the improved temperature sensor unit should also be easy and inexpensive to produce and should be suitable without increased manufacturing costs for a variety of flat heating devices.
  • the invention proposes a temperature sensor unit with at least one temperature sensor for detecting the temperature of an electric temperature control device.
  • This electric temperature control device is arranged on an object to be tempered, which may be part of a vehicle interior, wherein the temperature sensor is at least partially embedded in or surrounded by a temperature compensation zone, which is formed by a thermally conductive material or has such Temperature sensor mechanically fixed and positioned.
  • the invention thus provides a unit for arranging at least one temperature sensor for detecting the temperature. within a tempering device, which is used for temperature control of objects.
  • the tempering unit may in particular be a heating mat or a flat unit which serves for heating, cooling or temperature control of curved or more complex surfaces. Due to the need for exact positioning and stable fixation of the temperature sensor within the temperature control device and to enable a homogeneous detection of the temperature of the temperature control device, the choice of a suitable fastening material is indispensable.
  • a thermally conductive material is used for positioning and fixing the temperature sensor, which forms the temperature compensation zone according to the invention and which has an increased thermal conductivity compared to the means usually used for attachment.
  • the temperature compensation zone or the thermally conductive material extend over at least one, but ideally a plurality of heating means of the temperature control device. Between the temperature sensor and the heating means, a temperature compensation zone is formed due to the heat-conductive material.
  • the thermally conductive material encloses at least partially the temperature sensor.
  • the thermally conductive material and thus the temperature compensation zone can completely enclose the temperature sensor. Due to the temperature equalization zone, the temperature sensor can be mounted with greater placement tolerance tolerance, as the thermally conductive material allows for uniform temperature sensing, even when positioned away from heat conductors. For detecting the temperature, a plurality of temperature sensors may also be located in a temperature compensation zone, which may be distributed over a larger area of the temperature control device.
  • the thermally conductive material may be, for example, a thermally conductive film, a thermally conductive adhesive tape or a thermally conductive foam material.
  • a thermally conductive foam material for positioning and fixing the temperature sensor has proven itself.
  • foam material such a positioning and fixing of the temperature sensor can be carried out within a product series, by means of which a uniform and reliable detection of the temperature within the temperature control can be realized.
  • a wrapping of the temperature sensor with a non-woven coating is no longer necessary when using a foam material.
  • foam material is due to its insulating and insulating effect as an insulating material used. Nevertheless, foam material has the advantageous property of high strength and mechanical resistance.
  • the temperature sensor can therefore be partially or completely enclosed uniformly by the foam material.
  • the assembly of the unit is uncomplicated when using the foam material. Even a possibly necessary replacement of the temperature sensor proves to be less expensive when using foam material, since the
  • Foam material can be removed by simply cutting.
  • the foam material is mixed with highly thermally conductive particles.
  • the thermally conductive particles settle upon dislocation in the pores of the foam material.
  • a heat bridge between the heating conductors of the tempering device and the temperature sensor can be built up via the thermally conductive particles, as a result of which homogeneous detection of the temperature of the temperature control device at the temperature sensor can take place.
  • the highly thermally conductive particles are carbon or metal particles, in particular aluminum particles.
  • metal or aluminum particles results in a lack of electrical conductivity between the individual particles. The particles are not in electrically conductive contact due to the offset.
  • thermally conductive foam material can also be used a thermally conductive film for generating a temperature compensation zone for homogeneous detection of the temperature of the temperature control device.
  • the temperature sensor enveloped with a nonwoven coating is placed in the temperature control device by means of a thermally conductive foil. It has proven particularly the use of copper foil, which has ideal thermally conductive properties for this purpose.
  • an adhesive tape with increased conductivity for positioning and fixing the temperature sensor is conceivable.
  • Other materials such as a thermally conductive but electrically insulating tape, for example, an adhesive tape are suitable as temperature compensation zones.
  • FIG. 1 shows a schematic view of different areas of use of a unit according to the invention in the embodiment of a motor vehicle for passenger transport.
  • FIG. 2 shows a schematic illustration of a circuit for controlling at least one tempering device.
  • Figures 3A to 3C show various embodiments of known from the prior art tempering.
  • 4 shows a schematic illustration of a unit according to the invention for arranging a temperature sensor.
  • FIG. 5 shows a schematic illustration of a further exemplary embodiment of a unit according to the invention for arranging a temperature sensor.
  • FIGS. 1 For identical or equivalent elements of the invention, identical reference numerals are used in FIGS. Furthermore, for the sake of clarity, only reference symbols are shown in the individual figures, which are required for the description of the respective figure.
  • the illustrated embodiments are only examples of how the device according to the invention can be configured and do not represent a final limitation.
  • FIG. 1 In the schematic side view of FIG. 1 different application areas of a unit according to the invention for the arrangement of a temperature sensor for detecting the temperature within a temperature control device are shown.
  • Far-reaching areas of application of the unit according to the invention are to be found in particular within a vehicle 8, as shown by way of example in FIG.
  • the vehicle 8 may in principle be a motor vehicle, aircraft, rail vehicle or ship, even if in the representation of FIG. 1 reference is made to a conventional motor vehicle for passenger transport.
  • the vehicle 8 has at least one article 10 to be tempered.
  • the article to be tempered may be, in particular, components 12 with which a user may come into contact, such as a steering device for vehicles, a steering wheel 14, a dashboard, an armrest, a door trim, a seat pad 16, a thermal blanket, a vehicle roof, a cushion, a cover or a seat.
  • components 12 may be, for example, a battery, a fluid line, a mirror, a tank or a memory.
  • the object 10 to be tempered or the component 12 to be tempered preferably comprises at least one tempering device;
  • the term "temperature control device” should be understood as meaning devices that can be used to specifically change the temperature in their environment.
  • the tempering device in the sense of this definition can, for example, be formed by devices having at least one electrical heating resistor, a heat pump, a Peltier element and / or an air movement device such as a fan. Often there is a use of tempering in steering wheel or seat heaters of vehicles. 8
  • FIG. 2 shows a variant of a control for at least one electric tempering device 18.
  • at least one tempering device 18 is arranged in a steering wheel 14 of a vehicle 8 (FIG. 1), wherein in the variant shown in FIG Temperature control devices 18 are each connected via electrical connection lines 20 to a control circuit 22, which supplies the temperature control device 18 with a suitable supply voltage and controls or regulates this to display different temperature values.
  • the control circuit 22 uses the sensor values of at least one temperature sensor unit 24 according to the invention, which is assigned to at least one of the temperature control devices 18.
  • a plurality of temperature control devices 18 or all existing temperature control devices 18 can each be assigned separate temperature sensor units 24.
  • the design and construction of the temperature sensor unit 24 and the tempering device 18 are explained in more detail with reference to Figures 4 and 5.
  • the tempering device 18 is merely indicated in the illustration of FIG. 2 and may in practice preferably extend over the entire steering wheel rim.
  • the schematic detail views of FIGS. 3A to 3C show various examples of a positioning of temperature sensors 24 in temperature-controllable cushions, as known from the prior art, for example for use as seat heaters.
  • the temperature sensor 24, for example be provided with a nonwoven coating 26 or embedded there, via which the temperature sensor 24 is positioned and secured.
  • the shown tempering device 18 has a plurality of heating means in the form of heating conductors 28, which are arranged meandering on a support 30, and provide the heat supply for the temperature control device 18.
  • the temperature sensor 24 When positioning the temperature sensors 24, substantial placement deviations can occur within a product series.
  • the temperature sensor 24 is mounted directly on one of the heating conductors 28.
  • the temperature sensor 24 In FIG. 3B, the temperature sensor 24 is located between two heating conductors 28.
  • the temperature sensor 24 in FIG. 3C is arranged at a considerable distance from the heating conductors 28 or more or less far away from the heating conductors 28.
  • mutually different heating curves of the temperature control devices 18 are measured which do not always reliably reflect their actual temperatures. As a result, different interval lengths may result for regulation times of a respective temperature controller 22.
  • it may be the case that incorrect temperature values are set which do not correspond to the selected temperature values or set setpoint values.
  • FIG. 4 shows a detail of a schematic structure of a temperature sensor unit 24 according to the invention.
  • the tempering device 18 has at least one support 30 on which strand-shaped heating conductors 28 (ie heating resistors) are preferably arranged for dissipating heat.
  • the carrier 30 may be, for example, a carrier 30 made of textile, knitted fabric, knitted fabric, woven fabric, fleece, of a flexible thermoplastic material, of air-permeable material and / or a z. B. knobbed or stamped foil act.
  • the heating resistors 28 may, for example, run meander-shaped on the carrier 30.
  • the temperature sensor unit 24 is provided, which may in particular comprise a temperature sensor 32 in the form of an NTC sensor.
  • the temperature sensor 32 of the temperature sensor unit 24 is at least partially covered by a covering device 26A, which at least partially projects beyond the sensor base surface in order to act as a fastening and as a heat-distributing device.
  • the temperature sensor 32 is preferably enclosed by a thermally conductive foam 34 which positions and fixes the temperature sensor 32.
  • the foam 34 may preferably be mixed with thermally conductive carbon particles, but within the Foam 34 have virtually no electrical conductivity, since they are each spaced from each other in the foam 34 embedded.
  • foam structure 34 When using such a foam structure 34 may optionally be dispensed with a non-woven coating 26 of the temperature sensor 32.
  • Foam 34 represents a temperature compensation zone 36. Via the temperature compensation zone 36, a largely homogeneous heat transfer between the heating conductors 28 of the tempering device 18 and the temperature sensor 32 or the temperature sensor unit 24 can be produced.
  • a thermally conductive film 38 such as a copper foil or a thermally conductive adhesive tape 40 may be used. In this case, larger deviations in the placement of the temperature sensor 32 within the unit 24 or with respect to the heating conductors 28 can take place without inconsistency occurring between heating curves of a plurality of temperature control units 18 of a product series.
  • FIG. 5 shows a further exemplary embodiment of a schematic structure of a temperature sensor unit 24 according to the invention for connecting a temperature sensor 32 to a temperature control device 18, as can be used in a steering wheel 14, a seat support 16 of a vehicle seat or another component 12 to be tempered ,
  • the tempering device 18 shown here is again designed as a flat, flexible heating element.
  • the tempering device 18 has at least one support 30 on which heating conductors 28 are arranged, which run on the support 30 in meandering fashion for heat emission.
  • a unit 24 comprising a temperature sensor 32, mounted.
  • the temperature sensor 32 is completely surrounded by a thermally conductive foam 34, which positions and fixes the temperature sensor 32.
  • thermally conductive foam 34 forms the desired temperature compensation zone 38.
  • a largely homogeneous heat transfer can take place between the heating conductors 28 of the tempering device 18 and the temperature sensor 32 of the temperature sensor unit 24.
  • larger deviations in the placement of the temperature sensor 32 within the unit 24 or with respect to the heating conductors 28 can take place without inconsistency occurring between heating curves of a plurality of temperature control units 18 of a product series.
  • the invention has been described with reference to a preferred embodiment.
  • the electric heating device has at least one planar carrier 30.
  • the carrier 30 has at least one strand-shaped heating conductor 28 arranged thereon and at least one temperature sensor 32. It is provided that the temperature sensor 32 is at least partially covered by a heat-conducting covering device 26A.
  • Particularly advantageous as covering means is a sheet which is at least partially formed from a foamed material.
  • carbonaceous particles, in particular graphite are embedded in the foamed material.
  • the carbonaceous foam material is at least partially additionally coated with copper or an electrically or thermally conductive adhesive tape.
  • This coating is preferably arranged on a side of the cover device 26A facing an electrical heating conductor.
  • the capping means 26A covers at least parts of the temperature sensor 32 and parts of a heating conductor 28.
  • the capping means 26A covers at least two spaced-apart portions of a heating conductor 28 or parts of at least two heating conductors 28.
  • Temperature control device electrical temperature control device connection line, electrical connection line
  • Temperature sensor temperature sensor unit

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Steering Controls (AREA)
  • Seats For Vehicles (AREA)

Abstract

La présente invention concerne une unité de détection de température (24) comprenant au moins un capteur de température (32) pour détecter la température d'un dispositif de thermorégulation électrique (18). L'unité (24) est disposée sur un objet (10) à thermoréguler qui fait notamment partie d'un équipement intérieur de véhicule. Le capteur de température (32) est au moins partiellement noyé dans une zone d'équilibrage de température (36) ou entouré par celle-ci, ladite zone étant formée par un matériau thermoconducteur ou présentant un matériau thermoconducteur qui par ailleurs immobilise mécaniquement et positionne le capteur de température (32).
PCT/DE2016/000322 2015-08-18 2016-08-17 Unité de détection de température et agencement d'un capteur de température sur ou dans un dispositif de thermorégulation WO2017028836A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015010606.6 2015-08-18
DE102015010606.6A DE102015010606A1 (de) 2015-08-18 2015-08-18 Temperatursensoreinheit und Anordnung eines Temperatursensors an bzw. in einer Temperierungseinrichtung

Publications (1)

Publication Number Publication Date
WO2017028836A1 true WO2017028836A1 (fr) 2017-02-23

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PCT/DE2016/000322 WO2017028836A1 (fr) 2015-08-18 2016-08-17 Unité de détection de température et agencement d'un capteur de température sur ou dans un dispositif de thermorégulation

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DE (1) DE102015010606A1 (fr)
WO (1) WO2017028836A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111247406A (zh) * 2017-12-20 2020-06-05 全耐塑料高级创新研究公司 包括温度传感器的燃料储箱

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017102688A1 (de) 2017-02-10 2018-08-16 Trw Automotive Safety Systems Gmbh Lenkrad und Verfahren zur Herstellung eines Lenkrads
DE102018203305A1 (de) * 2018-03-06 2019-09-12 Volkswagen Aktiengesellschaft Integration von Sensoren in Fahrzeugsitzen

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GB2200806A (en) * 1987-02-09 1988-08-10 Tocksfors Verkstads Ab Method and device for adjusting the heat flow in heated seats
DE19851979A1 (de) * 1998-11-11 2000-05-25 Daimler Chrysler Ag Temperaturfühler für einen klimatisierten Fahrzeugsitz
GB2387232A (en) * 2002-03-30 2003-10-08 Bosch Gmbh Robert Thermistor mounting arrangement for battery temperature sensor
DE102012000977A1 (de) 2011-04-06 2012-10-11 W.E.T. Automotive Systems Ag Heizeinrichtung für komplex geformte Oberflächen
DE202015103789U1 (de) * 2015-07-17 2015-07-31 Abb Technology Ag Oberflächentemperaturfühler

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CA1261236A (fr) * 1984-09-27 1989-09-26 Toyota Jidosha Kabushiki Kaisha Volant de direction
US6093910A (en) * 1998-10-30 2000-07-25 Tachi-S Engineering, Usa Inc. Electric seat heater
US6392195B1 (en) * 2000-11-27 2002-05-21 Breed Automotive Technology, Inc. Heated steering wheel
US7205510B2 (en) * 2004-03-22 2007-04-17 W.E.T. Automotive Systems Ltd. Heater for an automotive vehicle and method of forming same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2200806A (en) * 1987-02-09 1988-08-10 Tocksfors Verkstads Ab Method and device for adjusting the heat flow in heated seats
DE19851979A1 (de) * 1998-11-11 2000-05-25 Daimler Chrysler Ag Temperaturfühler für einen klimatisierten Fahrzeugsitz
GB2387232A (en) * 2002-03-30 2003-10-08 Bosch Gmbh Robert Thermistor mounting arrangement for battery temperature sensor
DE102012000977A1 (de) 2011-04-06 2012-10-11 W.E.T. Automotive Systems Ag Heizeinrichtung für komplex geformte Oberflächen
DE202015103789U1 (de) * 2015-07-17 2015-07-31 Abb Technology Ag Oberflächentemperaturfühler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111247406A (zh) * 2017-12-20 2020-06-05 全耐塑料高级创新研究公司 包括温度传感器的燃料储箱
US11345229B2 (en) 2017-12-20 2022-05-31 Plastic Omnium Advanced Innovation And Research Fuel tank comprising a temperature sensor

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