WO2005082651A2 - Temperature sensor and arrangement for regulating the climate in the interior of a motor vehicle - Google Patents

Temperature sensor and arrangement for regulating the climate in the interior of a motor vehicle Download PDF

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Publication number
WO2005082651A2
WO2005082651A2 PCT/EP2005/050030 EP2005050030W WO2005082651A2 WO 2005082651 A2 WO2005082651 A2 WO 2005082651A2 EP 2005050030 W EP2005050030 W EP 2005050030W WO 2005082651 A2 WO2005082651 A2 WO 2005082651A2
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WO
WIPO (PCT)
Prior art keywords
temperature sensor
temperature
sensor
arrangement
interior
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Application number
PCT/EP2005/050030
Other languages
German (de)
French (fr)
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WO2005082651A3 (en
Inventor
Hans-Dieter Heimberger
Bruno Santarossa
Henry Strobel
Josef Werner
Original Assignee
Siemens Aktiengesellschaft
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Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP05701443A priority Critical patent/EP1718483A2/en
Publication of WO2005082651A2 publication Critical patent/WO2005082651A2/en
Publication of WO2005082651A3 publication Critical patent/WO2005082651A3/en

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00Details of thermometers not specially adapted for particular types of thermometer
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/16Special arrangements for conducting heat from the object to the sensitive element
    • G01K1/18Special arrangements for conducting heat from the object to the sensitive element for reducing thermal inertia
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01KMEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K2201/00Application of thermometers in air-conditioning systems
    • G01K2201/02Application of thermometers in air-conditioning systems in vehicles

Definitions

  • the invention relates to a temperature sensor with a temperature-sensitive sensor element and connecting elements for establishing an electrical connection to the sensor element and an arrangement for climate control of a motor vehicle interior with such a temperature sensor.
  • Various sensors for determining actual conditions are used in control and regulating devices for motor vehicle air conditioning systems. Examples are sensors for determining the interior temperature, the outside temperature and the outlet temperature of the air supplied to the interior, and a sun sensor.
  • the temperature sensor for the interior temperature is usually hidden in the control and regulating device. So that the interior temperature can nevertheless be measured correctly, a suction fan is used in such an arrangement, which sucks in air from the interior of the motor vehicle and guides it past the temperature sensor.
  • This arrangement has proven itself in principle in the past, however, for a safe function the running of the suction fan must be constantly monitored in order to be able to recognize its failure in time. Furthermore, the noise caused by the suction fan is perceived as annoying.
  • DE 100 56 694 C2 discloses the arrangement of a non-ventilated temperature sensor in a motor vehicle, the sensor sorsystem includes a thermopile element and a temperature reference element assigned to the thermopile element.
  • the thermopile element detects the thermal radiation emitted by one or more objects within a passenger compartment of the motor vehicle.
  • the measurement signals generated by the thermopile element and the temperature reference element are fed to a control device of an air conditioner of the motor vehicle.
  • the measurement signal of the temperature reference element is used as a reference signal for determining a temperature signal from the measurement value of the thermopile element.
  • the temperature reference element is thermally coupled to a heat-conducting element, which in turn is in close thermal contact with the passenger compartment of the motor vehicle, so that the measurement signal of the temperature reference element is largely proportional to an interior temperature of the passenger compartment.
  • the device disclosed for dp, rt for determining the temperature in the interior of a vehicle is provided with a temperature sensor for arrangement behind a wall adjacent to the interior and a processing unit.
  • the processing unit receives the measurement signal from the temperature sensor and outputs an output signal representing the temperature in the interior of the vehicle.
  • the device has a heat conduction element for detecting the temperature of the air of the interior within its region close to the wall, the heat conduction element being in heat conduction contact with the temperature sensor and being provided for extension through an opening in the wall.
  • the unventilated temperature sensors for measuring the interior temperature in motor vehicles should also not be visible in the passenger compartment and are therefore hidden.
  • the problem of falsification of measured values arises, for example, from the fact that heat generated in the control device acts on the temperature sensor or, more generally speaking, the temperature in the control and regulating device in which the temperature sensor is arranged deviates from the interior temperature.
  • the first-mentioned object is achieved by a temperature sensor with the features of claim 1. Due to the design of the connection elements of the temperature-sensitive sensor element as conductor tracks applied to a flexible film, the connection elements have an extremely small cross-section in comparison to connection wires. On- Due to the extremely small cross-section, the conductor tracks have a high thermal resistance, so that the transfer of heat from a control and regulating device to the sensor element is kept very small.
  • a flexible film also has the advantage of being easy to install. Tolerances between the installation location of the temperature-sensitive sensor element and a rigid printed circuit board, on which the processing of the measurement signal of the temperature sensor and the generation of control or regulating signals of the climate control takes place, can be easily compensated.
  • the sensor element is applied as an unwired sensor element on the same flexible film as the connection elements and directly with
  • the sensor element contains both a temperature-dependent resistor and an infrared sensor.
  • the temperature-dependent resistance can be
  • the infrared sensor can in particular be designed as a semiconductor sensor chip.
  • the sensor element can be provided with a covering for protection.
  • the envelope be opaque in the visible spectral range and transparent in an infrared spectral range.
  • the infrared sensor can be used as a sun sensor for determining the solar radiation in the motor vehicle interior.
  • the conductor tracks are widened in an end region remote from the sensor element as contact points, in particular for a plug connection.
  • the cross section of the conductor tracks is thus increased in the end region in order to facilitate a connection to a rigid printed circuit board. Since this end region only affects a relatively small section of the conductor tracks in relation to the total length of the connection elements, such an increase in the cross section remains without a negative effect on the transmission of undesired heat to the sensor element.
  • the film is reinforced with the contact points in this end region, this makes it easier to establish an electrical connection to the rigid printed circuit board, in particular a plug connection.
  • the temperature sensor according to the invention can advantageously be used to generate a measured value representing the interior temperature of the motor vehicle in an arrangement for climate control of a motor vehicle interior.
  • the temperature sensor is placed in such a way that it projects into or through an opening in a wall delimiting the vehicle interior.
  • the arrangement is arranged in a dashboard or in a central sole arranged front panel with controls, wherein in the front panel or one of the controls there is an opening through or into which the temperature sensor of the temperature sensor protrudes, and the arrangement has a rigid printed circuit board with electronic components arranged behind the front panel, with which the connection elements of the temperature sensor are electrically connected.
  • the sensor element is fastened on a spacer element made of a poorly heat-conducting material, in particular plastic, at a distance from the rigid circuit board, the spacer element being supported on the rigid circuit board.
  • the spacer element is designed as a hollow body.
  • the spacer element itself has only a small material cross section and thus a high thermal conduction resistance. Due to the design of the spacer element as a hollow body ... there is air inside the spacer element, which is known to have poor thermal conductivity.
  • the spacer element can be designed as a hollow cylinder or hollow cone.
  • the cavity can also be subdivided, so that individual air-filled chambers result.
  • the spacer element can also have two or more partial areas which are only connected to one another at points. This results in areas of particularly small cross-section which hinder undesired heat conduction.
  • connection elements of the temperature sensor are electrically conductive with the rigid conductor plate connected, this represents a particularly simple installation option.
  • a further temperature sensor for determining one is on the rigid printed circuit board
  • Correction value for the measured interior temperature and a correction unit for determining the correction value and for correcting the measured interior temperature are available. In this way, any remaining heat input from the climate control device into the temperature sensor can be compensated.
  • Fig. 2 an arrangement of a tempera according to the invention. , door sensor in a control and operating device,
  • Fig. 4 a schematic representation of an air conditioning system of a motor vehicle.
  • FIG. 4 shows the essential components of an air conditioning and ventilation system of a motor vehicle, in which the temperature sensor according to the invention and the arrangement according to the invention for climate control are used.
  • Fresh air flap 2 is sucked in fresh air from the surroundings of the vehicle into the motor vehicle itself.
  • the position of the fresh air flap 2 is dependent on a servomotor 13. speed controlled by electrical signals that are output by the combined control and operating device 7.
  • Air can be drawn in from the passenger compartment 15 of the motor vehicle via the recirculation flap 3, which is controlled via a servomotor 14 as a function of electrical signals from the control and operating device 7. Circulating and fresh air are conveyed into the passenger compartment 15 by the fan 4.
  • the air passes an evaporator 6 of a refrigeration system and, if appropriate - depending on the position of a temperature flap 9 - a heat exchanger 8. In the heating mode, the air is heated by the heat exchanger 8.
  • the possibly cooled or heated air is supplied to the passenger compartment 15 via outflow 10.
  • the air distribution can be regulated with air distribution flaps 11. Several sensors supply actual values for the air conditioning system. In
  • the temperature sensor 1 shows an exemplary embodiment of the temperature sensor 1 according to the invention.
  • the temperature sensor 1 contains a flexible film 20 to which a temperature-dependent resistor 21 as a temperature-sensitive sensor element and an infrared sensor 22 are applied.
  • the temperature-dependent resistor 21 is applied to the film 20 as a non-wired component using thin-film technology.
  • Conductor tracks 23 applied to the film 20 serve as connection elements for establishing an electrical connection to the temperature-dependent resistor 21 and the infrared sensor 22
  • the width and thickness of the conductor tracks 23 are extremely small in relation to their length. While the length of the conductor tracks is typically a few centimeters, the width is of the conductor tracks 23, for example, only about a few 10 ⁇ m. Due to the resulting extremely small cross section of the conductor tracks 23, heat transfer via the conductor tracks 23 to the temperature-dependent resistor 21 and the infrared sensor 22 is largely avoided.
  • the conductor tracks 23 are widened as contact points 25 in an end region remote from the temperature-dependent resistor 21.
  • the flexible film 20 is also reinforced in the end region 24. This can be achieved, for example, by applying one or more further, possibly thicker films to the end region 24.
  • the formation of the conductor tracks 23 in the end region 24 as widened contact points 25 and the reinforcement of the film 20 in the end region 24 make the end region 24 with the contact points 25 suitable for producing a plug connection.
  • a plastic sheath (not shown here) is applied to the temperature-dependent resistor 21 and the infrared sensor 22 for protection, which also acts as a blocking filter for daylight, but is transparent in an infrared spectral range. As a result, daylight is kept away from the infrared sensor 22. Furthermore, the flexible film 20 has also been reinforced in the area 28 in which the temperature-dependent resistor 21 and the infrared sensor 22 are arranged.
  • the control and operating device 7 has a front panel 26 which faces the motor vehicle interior 15 and contains control elements, not shown here, in a known manner.
  • the front panel 26 has an opening 27 into which the temperature sensor 1 extends as far as the force vehicle interior 15 facing side of the front panel 26 protrudes.
  • the opening 27 can be closed with respect to the passenger compartment 15 by a thin film 38 which is impermeable in the visible spectral range and permeable in an infrared spectral range, so that the temperature sensor 1 is not visible to occupants of the vehicle.
  • the area 28 (FIG. 1) of the temperature sensor 1 containing the temperature-sensitive sensor element is arranged on a spacer element 29 designed as a hollow body.
  • the spacer 29 is supported on a rigid circuit board 30.
  • a plurality of components 31, 32, 33 are present on the rigid circuit board 30, which are connected to one another by conductor tracks (not shown in more detail) on the rigid circuit board 20 and form an electrical measuring and control circuit.
  • the component 31 is a further temperature sensor. It is used to determine a correction value for the measured interior temperature by means of the temperature sensor 1. In this way, any remaining influence of a temperature in the control and operating device 7 that differs from the interior temperature on the temperature measurement value of the temperature sensor 1 can be corrected.
  • correction values can be stored in the control unit 7 as a function of the deviation of the temperature measured by the temperature sensor 31 and the temperature measured by the temperature sensor 1.
  • Such a correction value is determined by means of the measurement and control circuit and the measured interior temperature is corrected.
  • the measurement and control circuit contains a microprocessor on which a corresponding correction program runs.
  • the microprocessor simultaneously forms the necessary control signals for the air conditioning system.
  • Corresponding control and regulation programs are known and need not be described in more detail here.
  • the temperature sensor 1 is connected with its area 24 remote from the sensor element to a plug socket 34 attached to the printed circuit board 30. The connection from the plug socket 34 to the components 32, 33 again takes place via conductor tracks (not shown) on the rigid printed circuit board 30.
  • the spacer element 29 accordingly has two partial regions 35, 36, which are connected to one another only at points via webs 37.
  • the only selective connection between the partial areas 35, 36 makes heat transfer between these partial areas and thus to a sensor element attached to the partial area 36 more difficult.
  • the two subregions 35, 36 are again designed in particular as hollow bodies.
  • the temperature sensor according to the invention is preferably part of the control and operating device of the air conditioning system.
  • this can also be arranged in an operating element, for example.
  • the front panel 26 generally forms a technical unit with the control unit and is usually installed in the center console or in the dashboard of the motor vehicle.
  • the actual control device is designed separately from the front panel 26, which is arranged in the center console.
  • Such an application can also be easily covered with the temperature sensor according to the invention by making the flexible film 20 with the conductor tracks 23 correspondingly long.
  • the temperature sensor according to the invention can also be attached outside the front panel 26 in the center console or the dashboard or at another suitable location in the vehicle.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention relates to a temperature sensor, particularly for measuring the interior temperature in an air conditioning unit of a motor vehicle. Said temperature sensor (1) comprises a temperature-sensitive sensor element (21) and connecting elements for establishing an electrical connection to the sensor element (21), the connecting elements being configured as a strip conductor (23) that is applied to a flexible film (20). The inventive embodiment of the connecting elements allows only an extremely small amount of heat to be transferred to the sensor element (21) as a result of thermal conduction via the connecting elements, thus largely preventing measured values from being falsified.

Description

Temperatursensor und Anordnung zur Klimaregelung eines KraftfahrzeuginnenraumesTemperature sensor and arrangement for climate control of a motor vehicle interior
Die Erfindung betrifft einen Temperatursensor mit einem temperaturempfindlichen Fühlerelement und Anschlusselementen zur Herstellung einer elektrischen Verbindung zu dem Fühlerelement sowie eine Anordnung zur Klimaregelung eines Kraftfahr- zeuginnenraumes mit einem derartigen Temperatursensor-The invention relates to a temperature sensor with a temperature-sensitive sensor element and connecting elements for establishing an electrical connection to the sensor element and an arrangement for climate control of a motor vehicle interior with such a temperature sensor.
In Steuer- und Regelgeräten für Kraftfahrzeugklimaanlagen werden verschiedene Sensoren zur Ermittlung von Istzuständen eingesetzt. Beispiele sind Sensoren zur Ermittlung der Innen- räumtemperatur, der Außentemperatur und der Ausblastemperatur der dem Innenraum zugeführten Luft sowie ein Sonnensensor. Der Temperatursensor für die Innenraumtemperatur ist zumeist versteckt in dem Steuer- und Regelgerät angeordnet. Damit dennoch die Innenraumtempecatur korrekt gemessen werden kann, wird bei einer solchen Anordnung ein Sauglüfter eingesetzt, der Luft aus dem Innenraum des Kraftfahrzeuges ansaugt und an dem Temperaturfühler vorbeiführt. Diese Anordnung hat sich in der Vergangenheit prinzipiell bewährt, jedoch muss für eine sichere Funktion der Lauf des Sauglüfters ständig überwacht werden, um dessen Ausfall rechtzeitig erkennen zu können. Des Weiteren wird das von dem Sauglüfter verursachte Geräusch teilweise als störend empfunden.Various sensors for determining actual conditions are used in control and regulating devices for motor vehicle air conditioning systems. Examples are sensors for determining the interior temperature, the outside temperature and the outlet temperature of the air supplied to the interior, and a sun sensor. The temperature sensor for the interior temperature is usually hidden in the control and regulating device. So that the interior temperature can nevertheless be measured correctly, a suction fan is used in such an arrangement, which sucks in air from the interior of the motor vehicle and guides it past the temperature sensor. This arrangement has proven itself in principle in the past, however, for a safe function the running of the suction fan must be constantly monitored in order to be able to recognize its failure in time. Furthermore, the noise caused by the suction fan is perceived as annoying.
Aus den genannten Gründen wurde stets versucht, einen so ge- nannten unbelüfteten Temperatursensor zu verwirklichen, bei dem auf einen Sauglüfter verzichtet wird. Aus der DE 100 56 694 C2 ist die Anordnung eines unbelüfteten Temperatursensors in einem Kraftfahrzeug bekannt, wobei das Sen- sorsystem ein Thermopileelement und ein dem Thermopileelement zugeordnetes Temperaturreferenzelement beinhaltet. Das Thermopileelement detektiert die Wärmestrahlung, die von einem oder mehreren Objekten innerhalb eines Fahrgastraums des Kraftfahrzeugs emittiert wird. Die vom Thermopileelement und dem Temperaturreferenzelement erzeugten Messsignale werden einer Regeleinrichtung eines Klimageräts des Kraftfahrzeugs zugeführt. Das Messsignal des Temperaturreferenzelementes wird als Referenzsignals zur Bestimmung eines Temperatursig- nals aus dem Messwert des Thermopileelements verwendet. Des Weiteren ist das Temperaturreferenzelement mit einem Wärmeleitelement thermisch gekoppelt, das seinerseits in engem thermischen Kontakt zu dem Fahrgastraum des Kraftfahrzeugs steht, so dass das Messsignal des Temperaturreferenzelements weitgehend proportional zu einer Innenraumtemperatur des Fahrgastraums ist.For the reasons mentioned, attempts have always been made to implement what is known as a non-ventilated temperature sensor, in which a suction fan is dispensed with. DE 100 56 694 C2 discloses the arrangement of a non-ventilated temperature sensor in a motor vehicle, the sensor sorsystem includes a thermopile element and a temperature reference element assigned to the thermopile element. The thermopile element detects the thermal radiation emitted by one or more objects within a passenger compartment of the motor vehicle. The measurement signals generated by the thermopile element and the temperature reference element are fed to a control device of an air conditioner of the motor vehicle. The measurement signal of the temperature reference element is used as a reference signal for determining a temperature signal from the measurement value of the thermopile element. Furthermore, the temperature reference element is thermally coupled to a heat-conducting element, which in turn is in close thermal contact with the passenger compartment of the motor vehicle, so that the measurement signal of the temperature reference element is largely proportional to an interior temperature of the passenger compartment.
Aus der EP 1 195 275 AI ist eine weitere Ausführungsform eines unbelüfteten Temperatursensors bekannt. Die dp,rt offen- barte Vorrichtung zur Ermittlung der Temperatur im Innenraum eines Fahrzeugs ist mit einem Temperaturfühler zur Anordnung hinter einer an den Innenraum angrenzenden Wand und einer Verarbeitungseinheit versehen. Die Verarbeitungseinheit empfängt das Messsignal des Temperaturfühlers und gibt ein die Temperatur im Innenraum des Fahrzeugs repräsentierendes Ausgangssignal aus. Weiterhin weist die Vorrichtung ein Wärmeleitungselement zur Erfassung der Temperatur der Luft des Innenraums innerhalb von dessen wandnahen Bereich auf, wobei das Wärmeleitungselement in Wärmeleitkontakt mit dem Tempera- turfühler steht und zur Erstreckung durch eine Öffnung in der Wand vorgesehen ist. Des Weiteren ist aus der nicht vorveröffentlichten Deutschen Patentanmeldung 103 16 010.8 ein integrierter Temperatursensor sowie eine Anordnung zur Messung einer Innenraumtemperatur bekannt, wobei ein Temperaturfühler und ein Infrarotsen- sor auf einen gemeinsamen Trägerelement angeordnet sind und der Infrarotsensor und das Trägerelement in ein Gehäuse eingebettet sind, das als Vollkörper ausgeführt ist.Another embodiment of a non-ventilated temperature sensor is known from EP 1 195 275 AI. The device disclosed for dp, rt for determining the temperature in the interior of a vehicle is provided with a temperature sensor for arrangement behind a wall adjacent to the interior and a processing unit. The processing unit receives the measurement signal from the temperature sensor and outputs an output signal representing the temperature in the interior of the vehicle. Furthermore, the device has a heat conduction element for detecting the temperature of the air of the interior within its region close to the wall, the heat conduction element being in heat conduction contact with the temperature sensor and being provided for extension through an opening in the wall. Furthermore, from the unpublished German patent application 103 16 010.8 an integrated temperature sensor and an arrangement for measuring an interior temperature are known, a temperature sensor and an infrared sensor being arranged on a common carrier element and the infrared sensor and the carrier element being embedded in a housing, which is designed as a full body.
Auch die unbelüfteten Temperatursensoren zur Messung der In- nenraumtemperatur in Kraftfahrzeugen sollen im Fahrgastraum nicht sichtbar sein und sind daher versteckt angeordnet. Hierbei ergibt sich jedoch das Problem der Messwertverfälschung beispielsweise dadurch, dass im Regelgerät entstehende Wärme auf den Temperatursensor einwirkt oder allgemeiner ge- sprochen die Temperatur im Steuer- und Regelgerät, in dem der Temperatursensor angeordnet ist, von der Innenraumtemperatur abweicht .The unventilated temperature sensors for measuring the interior temperature in motor vehicles should also not be visible in the passenger compartment and are therefore hidden. Here, however, the problem of falsification of measured values arises, for example, from the fact that heat generated in the control device acts on the temperature sensor or, more generally speaking, the temperature in the control and regulating device in which the temperature sensor is arranged deviates from the interior temperature.
Aufgabe der Erfindung ist es, daher, einen Temperatursensor anzugeben, der keine oder nur eine äußerst geringe Messwertverfälschung aufgrund der Temperatur des Steuer- und Regelgeräts aufweist sowie einfach und kostengünstig aufgebaut und einfach montierbar ist. Eine weitere Aufgabe der Erfindung besteht darin, eine Anordnung zur Klimaregelung eines Kraft- fahrzeuginnenraumes mit einem derartigen Temperatursensor anzugeben.It is therefore the object of the invention to provide a temperature sensor which has no or only an extremely slight falsification of the measured values due to the temperature of the control and regulating device, and which is simple and inexpensive to construct and easy to install. Another object of the invention is to provide an arrangement for controlling the climate of a motor vehicle interior with such a temperature sensor.
Die erstgenannte Aufgabe wird durch einen Temperatursensor mit den Merkmalen des Anspruchs 1 gelöst. Durch die Ausbil- düng der Anschlusselemente des temperaturempfindlichen Fühlerelements als auf eine flexible Folie aufgebrachte Leiterbahnen weisen die Anschlusselemente im Vergleich zu An- schlussdrahten einen äußerst geringen Querschnitt auf. Auf- grund des äußerst geringen Querschnitts weisen die Leiterbahnen einen hohen thermischen Widerstand auf, so dass die Übertragung von Wärme eines Steuer- und Regelgerätes auf das Fühlerelement sehr klein gehalten wird. Eine flexible Folie hat 5 zudem den Vorteil einer einfachen Montage. Toleranzen zwischen dem Einbauort des temperaturempfindlichen Fühlerelements und einer starren Leiterplatte, auf der die Verarbeitung des Messsignals des Temperatursensors und die Erzeugung von Steuer- oder RegelSignalen der Klimaregelung erfolgt, 10 können auf einfache Weise ausgeglichen werden.The first-mentioned object is achieved by a temperature sensor with the features of claim 1. Due to the design of the connection elements of the temperature-sensitive sensor element as conductor tracks applied to a flexible film, the connection elements have an extremely small cross-section in comparison to connection wires. On- Due to the extremely small cross-section, the conductor tracks have a high thermal resistance, so that the transfer of heat from a control and regulating device to the sensor element is kept very small. A flexible film also has the advantage of being easy to install. Tolerances between the installation location of the temperature-sensitive sensor element and a rigid printed circuit board, on which the processing of the measurement signal of the temperature sensor and the generation of control or regulating signals of the climate control takes place, can be easily compensated.
In einer bevorzugten Ausführungsform ist das Fühlerelement als unbedrahtetes Fühlerelement auf derselben flexiblen Folie aufgebracht wie die Anschlusselemente und unmittelbar mitIn a preferred embodiment, the sensor element is applied as an unwired sensor element on the same flexible film as the connection elements and directly with
15 diesen verbunden. Auf den Einsatz bedrahteter Fühlerelemente wird bei dieser Ausführungsform vollständig verzichtet. Ein derartiger Temperatursensor lässt sich daher kostengünstig durch Aufbringen des Fühlerelements und der Leiterbahnen auf _- die flexible Folie herstellen. Das Fühlerelement wird dabei15 connected this. The use of wired sensor elements is completely dispensed with in this embodiment. Such a temperature sensor can therefore be produced inexpensively by applying the sensor element and the conductor tracks to the flexible film. The sensing element will
20 insbesondere durch einen temperaturabhängigen Widerstand und/oder einen Infrarotsensor gebildet, wobei in einer besonders bevorzugten Ausführungsform das Fühlerelement sowohl einen temperaturabhängigen Widerstand als auch einen Infrarotsensor enthält. Der temperaturabhängige Widerstand kann kos-20 formed in particular by a temperature-dependent resistor and / or an infrared sensor, wherein in a particularly preferred embodiment the sensor element contains both a temperature-dependent resistor and an infrared sensor. The temperature-dependent resistance can be
25. tengünstig als Dünnschicht auf die Folie aufgebracht sein. Der Infrarotsensor kann insbesondere als Halbleitersensorchip ausgeführt sein. Durch den vollständigen Verzicht auf bedrahtete Anschlusselemente wird dabei der unerwünschte Wärmeübergang über die Anschlusselemente weitgehend reduziert.25. be applied inexpensively as a thin layer on the film. The infrared sensor can in particular be designed as a semiconductor sensor chip. By completely dispensing with wired connection elements, the undesired heat transfer via the connection elements is largely reduced.
30 Zum Schutz kann das Fühlerelement mit einer Umhüllung versehen sein. Insbesondere bei einer Ausführungsform, bei der das Fühlerelement einen Infrarotsensor enthält, kann die Umhül- lung im sichtbaren Spektralbereich undurchlässig und in einem Infrarotspektralbereich durchlässig ausgebildet sein. Der Infrarotsensor kann dabei als Sonnensensor zur Ermittlung der Sonneneinstrahlung in den Kraftfahrzeuginnenraum genutzt wer- den.30 The sensor element can be provided with a covering for protection. In particular in an embodiment in which the sensor element contains an infrared sensor, the envelope be opaque in the visible spectral range and transparent in an infrared spectral range. The infrared sensor can be used as a sun sensor for determining the solar radiation in the motor vehicle interior.
In einer besonderen Ausführungsform ist vorgesehen, dass die Leiterbahnen in einem dem Fühlerelement fernen Endbereich verbreitert als Kontaktstellen, insbesondere für eine Steck- Verbindung ausgebildet sind. Der Querschnitt der Leiterbahnen wird somit in dem Endbereich zur Erleichterung einer Verbindung mit einer starren Leiterplatte erhöht. Da dieser Endbereich in Bezug auf die Gesamtlänge der Anschlusselemente nur einen relativ kleinen Abschnitt der Leiterbahnen betrifft, bleibt eine derartige Erhöhung des Querschnitts ohne negative Auswirkung auf die Übertragung unerwünschter Wärme auf das Sensorelement .In a special embodiment it is provided that the conductor tracks are widened in an end region remote from the sensor element as contact points, in particular for a plug connection. The cross section of the conductor tracks is thus increased in the end region in order to facilitate a connection to a rigid printed circuit board. Since this end region only affects a relatively small section of the conductor tracks in relation to the total length of the connection elements, such an increase in the cross section remains without a negative effect on the transmission of undesired heat to the sensor element.
Wird die Folie- in diesem Endbereich mit den Kontaktstellen ._ verstärkt ausgebildet, so wird hierdurch die Herstellung einer elektrischen Verbindung zu der starren Leiterplatte, insbesondere einer Steckverbindung, erleichtert.If the film is reinforced with the contact points in this end region, this makes it easier to establish an electrical connection to the rigid printed circuit board, in particular a plug connection.
Der erfindungsgemäße Temperatursensor kann vorteilhaft zur Erzeugung eines die Innenraumtemperatur des Kraftfahrzeugs repräsentierenden Messwerts in einer Anordnung zur Klimaregelung eines Kraftfahrzeuginnenraums eingesetzt werden. Insbesondere wird der Temperatursensor dabei so platziert, dass er in eine oder durch eine Öffnung in einer den Fahrzeuginnen- räum begrenzenden Wand ragt.The temperature sensor according to the invention can advantageously be used to generate a measured value representing the interior temperature of the motor vehicle in an arrangement for climate control of a motor vehicle interior. In particular, the temperature sensor is placed in such a way that it projects into or through an opening in a wall delimiting the vehicle interior.
In einer bevorzugten Ausführungsform ist vorgesehen, dass die Anordnung eine in einem Armaturenbrett oder einer Mittelkon- sole angeordnete Frontblende mit Bedienelementen aufweist, wobei in der Frontblende oder einem der Bedienelemente eine Öffnung vorhanden ist, durch die oder in die der Temperaturfühlers des Temperatursensors ragt, und die Anordnung eine hinter der Frontblende angeordnete starre Leiterplatte mit elektronischen Bauelementen aufweist, mit der die Anschlusselemente des Temperatursensors elektrisch leitend verbunden sind.In a preferred embodiment it is provided that the arrangement is arranged in a dashboard or in a central sole arranged front panel with controls, wherein in the front panel or one of the controls there is an opening through or into which the temperature sensor of the temperature sensor protrudes, and the arrangement has a rigid printed circuit board with electronic components arranged behind the front panel, with which the connection elements of the temperature sensor are electrically connected.
In einer besonderen Ausführungsform ist vorgesehen, dass das Fühlerelement auf einem Abstandselement aus einem schlecht Wärme leitenden Material, insbesondere Kunststoff, in Abstand von der starren Leiterplatte befestigt ist, wobei sich das Abstandselement auf der starren Leiterplatte abstützt . Insbe- sondere ist das Abstandselement als Hohlkörper ausgebildet.In a special embodiment it is provided that the sensor element is fastened on a spacer element made of a poorly heat-conducting material, in particular plastic, at a distance from the rigid circuit board, the spacer element being supported on the rigid circuit board. In particular, the spacer element is designed as a hollow body.
Dies hat den Vorteil, dass das Abstandselement selbst nur einen geringen Materialquerschnitt und somit einen hohen Wärmeleitungswiderstand aufweist. Durch die Ausbildung des Abstandselements als Hohlkörper...befindet sich im Inneren des Abstandelements Luft, die bekanntermaßen eine schlechte Wärmeleitfähigkeit aufweist. Insbesondere kann das Abstandselement als Hohlzylinder oder Hohlkegel ausgebildet sein. Zudem kann der Hohlraum noch unterteilt sein, so dass sich einzelne luftgefüllte Kammern ergeben.This has the advantage that the spacer element itself has only a small material cross section and thus a high thermal conduction resistance. Due to the design of the spacer element as a hollow body ... there is air inside the spacer element, which is known to have poor thermal conductivity. In particular, the spacer element can be designed as a hollow cylinder or hollow cone. In addition, the cavity can also be subdivided, so that individual air-filled chambers result.
Zur Verminderung der Wärmeleitung zu dem Fühlerelement kann das Abstandselement zudem zwei oder mehr Teilbereiche aufweisen, die nur punktuell miteinander verbunden sind. Hierdurch ergeben sich Bereiche besonders geringen Querschnittes, die eine unerwünschte Wärmeleitung behindern.In order to reduce the heat conduction to the sensor element, the spacer element can also have two or more partial areas which are only connected to one another at points. This results in areas of particularly small cross-section which hinder undesired heat conduction.
Werden die Anschlusselemente des Temperatursensors über eine Steckverbindung elektrisch leitend mit der starren Leiter- platte verbunden, so stellt dies eine besonders einfache Montagemöglichkeit dar.If the connection elements of the temperature sensor are electrically conductive with the rigid conductor plate connected, this represents a particularly simple installation option.
In einer weiteren Ausführungsform ist auf der starren Leiter- platte ein weiterer Temperatursensor zur Bestimmung einesIn a further embodiment, a further temperature sensor for determining one is on the rigid printed circuit board
Korrekturwertes für die gemessene Innenraumtemperatur und eine Korrektureinheit zur Bestimmung des Korrekturwertes und zur Korrektur der gemessenen Innenraumtemperatur vorhanden. Auf diese Weise kann ein dennoch verbleibender Wärmeeintrag von dem Klimasteuergerät in den Temperatursensor kompensiert werde .Correction value for the measured interior temperature and a correction unit for determining the correction value and for correcting the measured interior temperature are available. In this way, any remaining heat input from the climate control device into the temperature sensor can be compensated.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels und der Zeichnung näher beschrieben. Es zeigen:The invention is described below with reference to an embodiment and the drawing. Show it:
Fig. 1: einen erfindungsgemäßen Temperatursensor,1: a temperature sensor according to the invention,
Fig. 2: eine Anordnung eines erfindungsgemäßen Tempera- . , tursensors in einem Steuer- und Bediengerät,Fig. 2: an arrangement of a tempera according to the invention. , door sensor in a control and operating device,
Fig. 3: ein Abstandselement zur Verwendung mit dem Temperatursensor,3: a spacer for use with the temperature sensor,
Fig. 4: eine schematische Darstellung einer Klimaanlage eines Kraftfahrzeugs.Fig. 4: a schematic representation of an air conditioning system of a motor vehicle.
Fig. 4 zeigt die wesentlichen Komponenten einer Klimatisie- rungs- und Belüftungsanlage eines Kraftfahrzeugs, in der der erfindungsgemäße Temperatursensor und die erfindungsgemäße Anordnung zur Klimaregelung zum Einsatz kommen. Über die4 shows the essential components of an air conditioning and ventilation system of a motor vehicle, in which the temperature sensor according to the invention and the arrangement according to the invention for climate control are used. About the
Frischluftklappe 2 wird Frischluft aus der Umgebung des Fahrzeugs in das Kraftfahrzeug selbst angesaugt. Die Stellung der Frischluftklappe 2 wird von einem Stellmotor 13 in Abhängig- keit von elektrischen Signalen gesteuert, die vom kombinierten Steuer- und Bediengerät 7 ausgegeben werden. Über die Um- luftklappe 3, die in Abhängigkeit von elektrischen Signalen des Steuer- und Bediengeräts 7 über einen Stellmotor 14 ange- steuert wird, kann Luft aus dem Fahrgastraum 15 des Kraftfahrzeugs angesaugt werden. Durch den Ventilator 4 werden Um- und Frischluft in den Fahrgastraum 15 befördert. Auf dem Weg in den Fahrgastraum 15 passiert die Luft einen Verdampfer 6 einer Kälteanlage sowie gegebenenfalls - abhängig von der Stellung einer Temperaturklappe 9 - einen Wärmetauscher 8. Im Heizbetrieb wird die Luft durch den Wärmetauscher 8 erwärmt. Über Ausströmer 10 wird die gegebenenfalls gekühlte oder erwärmte Luft dem Fahrgastraum 15 zuge ührt. Die Luftverteilung kann hierbei mit Luftverteilerklappen 11 reguliert werden. Mehrere Sensoren liefern Istwerte für die Klimaanlage. InFresh air flap 2 is sucked in fresh air from the surroundings of the vehicle into the motor vehicle itself. The position of the fresh air flap 2 is dependent on a servomotor 13. speed controlled by electrical signals that are output by the combined control and operating device 7. Air can be drawn in from the passenger compartment 15 of the motor vehicle via the recirculation flap 3, which is controlled via a servomotor 14 as a function of electrical signals from the control and operating device 7. Circulating and fresh air are conveyed into the passenger compartment 15 by the fan 4. On the way into the passenger compartment 15, the air passes an evaporator 6 of a refrigeration system and, if appropriate - depending on the position of a temperature flap 9 - a heat exchanger 8. In the heating mode, the air is heated by the heat exchanger 8. The possibly cooled or heated air is supplied to the passenger compartment 15 via outflow 10. The air distribution can be regulated with air distribution flaps 11. Several sensors supply actual values for the air conditioning system. In
Fig. 4 ist von diesen Sensoren nur der Innenraumtemperatur- sensor 1 dargestellt. Sollwerte können über Bedienelemente eingestellt werden, die am Steuer- und Bediengerät 7 angebracht sind.4 of these sensors, only the interior temperature sensor 1 is shown. Setpoints can be set using controls that are attached to the control and operating device 7.
Fig. 1 zeigt ein Ausführungsbeispiel des erfindungsgemäßen Temperatursensors 1. Der Temperatursensor 1 beinhaltet eine flexible Folie 20, auf die ein temperaturabhängiger Widerstand 21 als temperaturempfindliches Fühlerelement und ein Infrarotsensor 22 aufgebracht sind. Der temperaturabhängige Widerstand 21 ist als unbedrahtetes Bauelement in Dünnschichttechnik auf die Folie 20 aufgebracht. Als Anschlusselemente zur Herstellung einer elektrischen Verbindung zu dem temperaturabhängigen Widerstand 21 und dem Infrarotsensor 22 dienen auf die Folie 20 aufgebrachte Leiterbahnen 23. Die1 shows an exemplary embodiment of the temperature sensor 1 according to the invention. The temperature sensor 1 contains a flexible film 20 to which a temperature-dependent resistor 21 as a temperature-sensitive sensor element and an infrared sensor 22 are applied. The temperature-dependent resistor 21 is applied to the film 20 as a non-wired component using thin-film technology. Conductor tracks 23 applied to the film 20 serve as connection elements for establishing an electrical connection to the temperature-dependent resistor 21 and the infrared sensor 22
Breite und Dicke der Leiterbahnen 23 ist im Verhältnis zu ihrer Länge äußerst gering. Während die Länge der Leiterbahnen typischerweise einige Zentimeter beträgt, beträgt die Breite der Leiterbahnen 23 beispielsweise nur etwa einige 10 um. Durch den daraus resultierenden äußerst geringen Querschnitt der Leiterbahnen 23 wird eine Wärmeübertragung über die Leiterbahnen 23 zu dem temperaturabhängigen Widerstand 21 und dem Infrarotsensor 22 weitgehend vermieden.The width and thickness of the conductor tracks 23 are extremely small in relation to their length. While the length of the conductor tracks is typically a few centimeters, the width is of the conductor tracks 23, for example, only about a few 10 μm. Due to the resulting extremely small cross section of the conductor tracks 23, heat transfer via the conductor tracks 23 to the temperature-dependent resistor 21 and the infrared sensor 22 is largely avoided.
Die Leiterbahnen 23 sind in einem dem temperaturabhängigen Widerstand 21 fernen Endbereich verbreitert als Kontaktstellen 25 ausgebildet. Im Endbereich 24 ist die flexible Folie 20 zudem verstärkt. Dies kann beispielsweise durch Aufbringen einer oder mehrerer weiterer, ggf. dickerer Folien auf den Endbereich 24 erreicht werden. Durch die Ausbildung der Leiterbahnen 23 im Endbereich 24 als verbreiterte Kontaktstellen 25 und die Verstärkung der Folie 20 im Endbereich 24 ist der Endbereich 24 mit den Kontaktstellen 25 zur Herstellung einer Steckverbindung geeignet .The conductor tracks 23 are widened as contact points 25 in an end region remote from the temperature-dependent resistor 21. The flexible film 20 is also reinforced in the end region 24. This can be achieved, for example, by applying one or more further, possibly thicker films to the end region 24. The formation of the conductor tracks 23 in the end region 24 as widened contact points 25 and the reinforcement of the film 20 in the end region 24 make the end region 24 with the contact points 25 suitable for producing a plug connection.
Auf den temperaturabhängigen Widerstand 21 und den Infrarotsensor 22 ist zum Schutz eine hier nicht dargestellte Kunst- stoffhülle aufgebracht, die zudem als Sperrfilter für Tageslicht wirkt, in einem infraroten Spektralbereich jedoch durchlässig ist. Hierdurch wird Tageslicht vom Infrarotsensor 22 ferngehalten. Weiterhin ist die flexible Folie 20 im Bereich 28, in dem der temperaturabhängige Widerstand 21 und der Infrarotsensor 22 angeordnet sind, ebenfalls verstärkt worden.A plastic sheath (not shown here) is applied to the temperature-dependent resistor 21 and the infrared sensor 22 for protection, which also acts as a blocking filter for daylight, but is transparent in an infrared spectral range. As a result, daylight is kept away from the infrared sensor 22. Furthermore, the flexible film 20 has also been reinforced in the area 28 in which the temperature-dependent resistor 21 and the infrared sensor 22 are arranged.
Fig. 2 zeigt einen vereinfachten Querschnitt durch das Steuer- und Bediengerät 7. Das Steuer- und Bediengerät 7 weist eine Frontblende 26 auf, die dem Kraftfahrzeuginnenraum 15 zugewandt ist und in bekannter Weise hier nicht dargestellte Bedienelemente enthält. Die Frontblende 26 weist eine Öffnung 27 auf, in die der Temperatursensor 1 bis an die dem Kraft- fahrzeuginnenraum 15 zugewandte Seite der Frontblende 26 hineinragt. Die Öffnung 27 kann durch einen im sichtbaren Spektralbereich undurchlässige und in einem infraroten Spektralbereich durchlässige dünne Folie 38 gegenüber dem Fahrgastraum 15 geschlossen sein, so dass der Temperatursensor 1 für Insassen des Fahrzeuges nicht sichtbar ist. Der das temperaturempfindliche Fühlerelement enthaltende Bereich 28 (Fig. 1) des Temperatursensors 1 ist auf einem als Hohlkörper ausgebildeten Abstandselemen't 29 angeordnet. Das Abstandselement 29 stützt sich auf einer starren Leiterplatte 30 ab.2 shows a simplified cross section through the control and operating device 7. The control and operating device 7 has a front panel 26 which faces the motor vehicle interior 15 and contains control elements, not shown here, in a known manner. The front panel 26 has an opening 27 into which the temperature sensor 1 extends as far as the force vehicle interior 15 facing side of the front panel 26 protrudes. The opening 27 can be closed with respect to the passenger compartment 15 by a thin film 38 which is impermeable in the visible spectral range and permeable in an infrared spectral range, so that the temperature sensor 1 is not visible to occupants of the vehicle. The area 28 (FIG. 1) of the temperature sensor 1 containing the temperature-sensitive sensor element is arranged on a spacer element 29 designed as a hollow body. The spacer 29 is supported on a rigid circuit board 30.
Auf der starren Leiterplatte 30 sind mehrere Bauelemente 31, 32, 33 vorhanden, die durch nicht näher dargestellte Leiterbahnen auf der starren Leiterplatte 20 miteinander verbunden sind und eine elektrische Mess- und Regelschaltung bilden.A plurality of components 31, 32, 33 are present on the rigid circuit board 30, which are connected to one another by conductor tracks (not shown in more detail) on the rigid circuit board 20 and form an electrical measuring and control circuit.
Das Bauelement 31 ist ein weiterer Temperatursensor. Er dient zur Bestimmung eines Korrekturwertes für die gemessene Innenraumtemperatur mittels des Temperatursensors 1. Hierdurch kann ein noch verbleibender Einfluss einer von der Innenraum- temperatur abweichenden Temperatur im Steuer- und Bediengerät 7 auf den Temperaturmesswert des Temperatursensors 1 korrigiert werden. Beispielsweise können hierzu in dem Steuergerät 7 Korrekturwerte in Abhängigkeit von der Abweichung der durch den Temperatursensor 31 gemessenen Temperatur und der durch den Temperatursensor 1 gemessenen Temperatur abgelegt sein.The component 31 is a further temperature sensor. It is used to determine a correction value for the measured interior temperature by means of the temperature sensor 1. In this way, any remaining influence of a temperature in the control and operating device 7 that differs from the interior temperature on the temperature measurement value of the temperature sensor 1 can be corrected. For example, for this purpose correction values can be stored in the control unit 7 as a function of the deviation of the temperature measured by the temperature sensor 31 and the temperature measured by the temperature sensor 1.
Mittels der Mess- und RegelSchaltung wird ein solcher Korrekturwert bestimmt und eine Korrektur der gemessenen Innenraumtemperatur vorgenommen. Die Mess- und Regelschaltung enthält dabei einen Mikroprozessor, auf dem ein entsprechendes Kor- rekturprogramm abläuft. Der Mikroprozessor bildet gleichzeitig die erforderlichen Steuer- bzw. Regelsignale für die Klimaanlage. Entsprechende Steuer- und Regelprogramme sind bekannt und müssen hier nicht näher beschreiben werden. Der Temperatursensor 1 ist mit seinem dem Fühlerelement fernen Bereich 24 mit einer auf der Leiterplatte 30 angebrachten Steckerbuchse 34 verbunden. Die Verbindung von der Steckerbuchse 34 zu den Bauelementen 32, 33 erfolgt wieder über nicht näher dargestellte Leiterbahnen auf der starren Leiterplatte 30.Such a correction value is determined by means of the measurement and control circuit and the measured interior temperature is corrected. The measurement and control circuit contains a microprocessor on which a corresponding correction program runs. The microprocessor simultaneously forms the necessary control signals for the air conditioning system. Corresponding control and regulation programs are known and need not be described in more detail here. The temperature sensor 1 is connected with its area 24 remote from the sensor element to a plug socket 34 attached to the printed circuit board 30. The connection from the plug socket 34 to the components 32, 33 again takes place via conductor tracks (not shown) on the rigid printed circuit board 30.
Fig. 3 zeigt eine besondere Ausführungsform des Abstandselements 29. Das Abstandselement 29 weist demgemäß zwei Teilbe- reiche 35, 36 auf, die über Stege 37 nur punktuell miteinander verbunden sind. Durch die nur punktuelle Verbindung zwischen den Teilbereichen 35, 36 wird eine Wärmeübertragung zwischen diesen Teilbereichen und somit zu einem auf dem Teilbereich 36 angebrachten Sensorelement erschwert. Die bei- den Teilbereiche 35, 36 sind insbesondere wieder als Hohlkörper ausgebildet.3 shows a special embodiment of the spacer element 29. The spacer element 29 accordingly has two partial regions 35, 36, which are connected to one another only at points via webs 37. The only selective connection between the partial areas 35, 36 makes heat transfer between these partial areas and thus to a sensor element attached to the partial area 36 more difficult. The two subregions 35, 36 are again designed in particular as hollow bodies.
Der erfindungsgemäße Temperatursensor ist - wie zuvor beschrieben - vorzugsweise Bestandteil des Steuer- und Bedien- gerätes der Klimaanlage. Neben einer Anordnung des temperaturempfindlichen Fühlerelements in einer Öffnung 27 der Frontblende 26 kann dieses beispielsweise auch in einem Bedienelement angeordnet sein. Die Frontblende 26 bildet dabei in der Regel eine gerätetechnische Einheit mit dem Steuerge- rät und ist zumeist in der Mittelkonsole oder im Armaturenbrett des Kraftfahrzeugs eingebaut. Sie sind jedoch davon abweichend auch Ausführungsformen möglich, bei denen das eigentliche Steuergerät getrennt von der Frontblende 26, die in der Mittelkonsole angeordnet ist, ausgebildet ist. Auch ein derartiger Einsatzfall kann mit dem erfindungsgemäßen Temperatursensor leicht abgedeckt werden, indem die flexible Folie 20 mit den Leiterbahnen 23 entsprechend lang ausgebildet wird. Weiterhin kann der erfindungsgemäße Temperatursensor auch außerhalb der Frontblende 26 in der Mittelkonsole oder dem Armaturenbrett oder an einer anderen geeigneten Stelle im Fahr- zeug angebracht werden. As described above, the temperature sensor according to the invention is preferably part of the control and operating device of the air conditioning system. In addition to an arrangement of the temperature-sensitive sensor element in an opening 27 of the front panel 26, this can also be arranged in an operating element, for example. The front panel 26 generally forms a technical unit with the control unit and is usually installed in the center console or in the dashboard of the motor vehicle. However, deviating from this, they are also possible embodiments in which the actual control device is designed separately from the front panel 26, which is arranged in the center console. Such an application can also be easily covered with the temperature sensor according to the invention by making the flexible film 20 with the conductor tracks 23 correspondingly long. Furthermore, the temperature sensor according to the invention can also be attached outside the front panel 26 in the center console or the dashboard or at another suitable location in the vehicle.

Claims

Patentansprüche claims
1. Temperatursensor (1) mit einem temperaturempfindlichen Fühlerelement und Anschlusselementen zur Herstellung einer elektrischen Verbindung zu dem Fühlerelement, dadur ch ge kenn z e i chnet , dass die An- schlusselemente als auf eine flexible Folie (20) aufgebrachte Leiterbahnen (23) ausgebildet sind.1. Temperature sensor (1) with a temperature-sensitive sensor element and connection elements for establishing an electrical connection to the sensor element, so that the connection elements are designed as conductor tracks (23) applied to a flexible film (20).
2. Temperatursensor nach Anspruch 1, dadur ch gekenn z ei chnet , dass das Fühlerelement als unbedrahtetes Fühlerelement auf derselben flexiblen Folie (20) aufgebracht ist wie die Anschlusselemente und unmittelbar mit diesen verbunden ist.2. Temperature sensor according to claim 1, characterized in that the sensor element is applied as an unwired sensor element on the same flexible film (20) as the connection elements and is directly connected to them.
3. Temperatursensor nach einem der vorhergehenden Ansprüche, dadurch ge kenn z e i chnet , dass das Fühlerelement durch einen temperaturabhängigen Widerstand (21) und/oder einen Infrarotsensor (22) gebil- det wird.3. Temperature sensor according to one of the preceding claims, characterized in that the sensor element is formed by a temperature-dependent resistor (21) and / or an infrared sensor (22).
4. Temperatursensor nach Anspruch 3, dadurch gekenn z ei chnet , dass der temperaturabhängige Widerstand (21) als Dünnschicht auf die flexible Folie (20) aufgebracht ist.4. Temperature sensor according to claim 3, characterized in that the temperature-dependent resistor (21) is applied as a thin layer to the flexible film (20).
5. Temperatursensor nach Anspruch 3 oder 4, dadur ch gekennz e i chnet , dass der Infrarotsensor (22) als Halbleiter-Sensorchip ausgeführt ist.5. Temperature sensor according to claim 3 or 4, characterized in that the infrared sensor (22) is designed as a semiconductor sensor chip.
6. Temperatursensor nach einem der vorhergehenden Ansprüche, d a du r c h g e k en n z e i c h n e t , dass das Fühlerelement eine im sichtbaren Spektralbereich undurchlässige und in einem infraroten Spektralbereich durchlässige Umhüllung aufweist.6. Temperature sensor according to one of the preceding claims, since you rchgek en noted that the sensor element in the visible spectral range has an impermeable envelope that is transparent in an infrared spectral range.
Temperatursensor nach einem der vorhergehenden Ansprüche, dadur ch ge kenn z ei chnet , dass die Leiterbahnen (23) in einem dem Fühlerelement fernen Endbereich (24) verbreitert als Kontaktstellen (25) , insbesondere für eine Steckverbindung, ausgebildet sind.Temperature sensor according to one of the preceding claims, characterized in that the conductor tracks (23) are widened in an end region (24) remote from the sensor element as contact points (25), in particular for a plug connection.
8. Temperatursensor nach Anspruch 5, dadur ch gekenn z ei chnet , dass die flexible Folie (20) in dem Endbereich (24) mit den Kontaktstellen (25) verstärkt ist.8. Temperature sensor according to claim 5, characterized in that the flexible film (20) is reinforced in the end region (24) with the contact points (25).
9. Anordnung zur Klimaregelung eines Kraftfahrzeug- Innenraums mit einem Temperatursensor (1) nach einem der vorhergehenden Ansprüche zur Erzeugung eines die Innenraumtemperatur des Kraftfahrzeugs repräsentieren- den Messwerts.9. Arrangement for climate control of a motor vehicle interior with a temperature sensor (1) according to one of the preceding claims for generating a measured value representing the interior temperature of the motor vehicle.
10. Anordnung nach Anspruch 9, dadurch gekennz ei chnet , dass der Temperatursensor (1) in eine oder durch eine Öffnung (27) in einer den Fahrzeugin- nenraum (15) begrenzenden Wand ragt.10. The arrangement according to claim 9, characterized in that the temperature sensor (1) projects into or through an opening (27) in a wall delimiting the vehicle interior (15).
11. Anordnung nach Anspruch 9 oder 10, dadur ch gekennz e i chnet , dass die Anordnung eine in einem Armaturenbrett oder einer Mittelkonsole angeord- nete Frontblende (26) mit Bedienelementen aufweist, wobei in der Frontblende (26) oder einem der Bedienelemente eine Öffnung (27) vorhanden ist, durch die oder in die der Temperaturfühler des Temperatursensors (1) ragt, und die Anordnung eine hinter der Frontblende (26) angeordnete starre Leiterplatte (30) mit elektronischen Bauelementen (31-33) aufweist, mit der die An- schlusselemente des Temperatursensors elektrisch lei- tend verbunden sind.11. Arrangement according to claim 9 or 10, characterized in that the arrangement has a front panel (26) with operating elements arranged in a dashboard or a center console, with an opening () in the front panel (26) or one of the operating elements. 27) is present, through or into which the temperature sensor of the temperature sensor (1) protrudes, and the arrangement has a rigid printed circuit board (30) with electronic components (31-33) arranged behind the front panel (26), to which the connection elements of the temperature sensor are connected in an electrically conductive manner.
12. Anordnung nach Anspruch 11, dadurch gekenn z ei chnet , dass das Fühlerelement auf einem Abstandselement (29) aus einem schlecht Wärme lei- tenden Material in Abstand von der starren Leiterplatte (30) befestigt ist, wobei sich das Abstandselement (29) auf der starren Leiterplatte (30) abstützt.12. The arrangement according to claim 11, characterized in that the sensor element is fastened on a spacer element (29) made of a poorly heat-conducting material at a distance from the rigid printed circuit board (30), the spacer element (29) being on the rigid circuit board (30) supports.
13. Anordnung nach Anspruch 12, dadurch g e - kenn z ei chnet , dass das Abstandselement (29) als Hohlkörper ausgebildet ist.13. Arrangement according to claim 12, characterized in that the spacer element (29) is designed as a hollow body.
14. Anordnung nach Anspruch 13, dadur ch gekenn z ei chnet , dass -das Abstandselement (29) als Hohlzylinder oder Hohlkegel ausgebildet ist.14. Arrangement according to claim 13, characterized in that the spacer element (29) is designed as a hollow cylinder or hollow cone.
15. Anordnung nach einem der Ansprüche 12 bis 14, dadurch gekennz ei chnet , dass das Abstandselement (29) zwei oder mehr Teilbereiche (35, 36) aufweist, die nur punktuell miteinander verbunden sind.15. Arrangement according to one of claims 12 to 14, characterized gekennz ei chnet that the spacer element (29) has two or more partial areas (35, 36) which are only connected to one another at points.
16. Anordnung nach einem der vorhergehenden Ansprüche, dadu rch ge kenn z ei chnet , dass die An- schlusselemente des Temperatursensors (1) über eine Steckverbindung elektrisch leitend mit der starren Leiterplatte (30) verbunden sind. 16. Arrangement according to one of the preceding claims, so that the connection elements of the temperature sensor (1) are electrically conductively connected to the rigid printed circuit board (30) via a plug connection.
7. Anordnung nach einem der vorhergehenden Ansprüche, dadu rch ge kenn z ei chnet , dass auf der starren Leiterplatte (30) eine weiterer Temperatursensor (31) zur Bestimmung eines Korrekturwertes für die gemessene Innenraumtemperatur und eine Korrektureinheit zur Bestimmung des Korrekturwertes und zur Korrektur der gemessenen Innenraumtemperatur vorhanden ist. 7. Arrangement according to one of the preceding claims, dadu rch ge kenn z ei chnet that on the rigid circuit board (30) a further temperature sensor (31) for determining a correction value for the measured interior temperature and a correction unit for determining the correction value and for correcting the measured indoor temperature is present.
PCT/EP2005/050030 2004-02-27 2005-01-05 Temperature sensor and arrangement for regulating the climate in the interior of a motor vehicle WO2005082651A2 (en)

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EP05701443A EP1718483A2 (en) 2004-02-27 2005-01-05 Temperature sensor and arrangement for regulating the climate in the interior of a motor vehicle

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DE102004009605A DE102004009605A1 (en) 2004-02-27 2004-02-27 Temperature sensor and arrangement for climate control of a motor vehicle interior
DE102004009605.8 2004-02-27

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KR (1) KR20070004659A (en)
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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006040664A1 (en) * 2006-08-30 2008-03-13 Valeo Klimasysteme Gmbh Compartment temperature determination
DE102008053827A1 (en) 2008-10-30 2010-05-12 Technolas Perfect Vision Gmbh Apparatus and method for providing a laser shot file
DE102010015657A1 (en) 2010-04-20 2011-10-20 Valeo Schalter Und Sensoren Gmbh Sensor assembly for detecting the temperature in the interior of a vehicle and device for determining the temperature in the interior of a vehicle
KR101287498B1 (en) * 2011-12-29 2013-07-19 우진 일렉트로나이트(주) Temperature probe enabling multiple measuring
DE102016110458B4 (en) * 2016-06-07 2023-11-09 Valeo Schalter Und Sensoren Gmbh Control device for an automatic air conditioning system of a motor vehicle, automatic air conditioning system and motor vehicle
CN108749572A (en) * 2018-04-11 2018-11-06 航天科技控股集团股份有限公司 A kind of vehicle outer temperature display modification method on automobile instrument
DE102018116277A1 (en) * 2018-07-05 2020-01-09 Valeo Schalter Und Sensoren Gmbh Device for detecting an interior temperature of a vehicle with an infrared light guide element and a radiation sensor, and air conditioning device for a motor vehicle
KR102603059B1 (en) * 2018-09-21 2023-11-16 현대자동차주식회사 Apparatus and method for measuring interior temperature of vehicle
CN109632123A (en) * 2018-12-07 2019-04-16 苏州长风航空电子有限公司 A kind of flexible paste chip temperature sensor
DE102019107338A1 (en) * 2019-04-03 2020-10-08 Valeo Schalter Und Sensoren Gmbh Sensor device, method of manufacturing a sensor device and vehicle
DE102021117871A1 (en) * 2021-07-12 2023-01-12 Valeo Schalter Und Sensoren Gmbh Temperature measuring device, overhead control device and system for providing a temperature value for an air conditioning system of a motor vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3939165C1 (en) * 1989-11-27 1990-10-31 Heraeus Sensor Gmbh, 6450 Hanau, De Temp. sensor with measurement resistance - has ceramic disk with thin metallic coating as resistance layer, and plastic sheet conductor plate
EP1039281A1 (en) * 1999-03-24 2000-09-27 Techem Aktiengesellschaft & Co. Measuring insert for resistance thermometer
JP2001091360A (en) * 1999-09-17 2001-04-06 Matsushita Electric Works Ltd Radiation temperature detecting element
DE10056693A1 (en) * 2000-11-15 2002-05-29 Siemens Ag IR sensor arrangement for automobile climate control device, provides signal proportional to temperature within passenger compartment
EP1413463A2 (en) * 2002-10-24 2004-04-28 Preh-Werke GmbH & Co. KG Arrangement for the determination of the interior temperature

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2792377B2 (en) * 1993-02-18 1998-09-03 松下電工株式会社 Semiconductor device
DE10049979C5 (en) * 2000-10-06 2005-12-22 Behr-Hella Thermocontrol Gmbh Device for determining the temperature in the interior of a vehicle
DE10302285B4 (en) * 2003-01-22 2006-05-04 Preh Gmbh Method for determining the interior temperature of a motor vehicle passenger compartment, arrangement for carrying out the method and temperature sensor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3939165C1 (en) * 1989-11-27 1990-10-31 Heraeus Sensor Gmbh, 6450 Hanau, De Temp. sensor with measurement resistance - has ceramic disk with thin metallic coating as resistance layer, and plastic sheet conductor plate
EP1039281A1 (en) * 1999-03-24 2000-09-27 Techem Aktiengesellschaft & Co. Measuring insert for resistance thermometer
JP2001091360A (en) * 1999-09-17 2001-04-06 Matsushita Electric Works Ltd Radiation temperature detecting element
DE10056693A1 (en) * 2000-11-15 2002-05-29 Siemens Ag IR sensor arrangement for automobile climate control device, provides signal proportional to temperature within passenger compartment
EP1413463A2 (en) * 2002-10-24 2004-04-28 Preh-Werke GmbH & Co. KG Arrangement for the determination of the interior temperature

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN Bd. 018, Nr. 624 (P-1833), 28. November 1994 (1994-11-28) & JP 06 241889 A (MATSUSHITA ELECTRIC WORKS LTD), 2. September 1994 (1994-09-02) *
PATENT ABSTRACTS OF JAPAN Bd. 2000, Nr. 21, 3. August 2001 (2001-08-03) & JP 2001 091360 A (MATSUSHITA ELECTRIC WORKS LTD), 6. April 2001 (2001-04-06) *

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EP1718483A2 (en) 2006-11-08
KR20070004659A (en) 2007-01-09
WO2005082651A3 (en) 2007-05-24
CN101133306A (en) 2008-02-27
DE102004009605A1 (en) 2005-09-15

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