WO2013060511A1 - Ensemble capteur à précontrainte mécanique - Google Patents

Ensemble capteur à précontrainte mécanique Download PDF

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Publication number
WO2013060511A1
WO2013060511A1 PCT/EP2012/066820 EP2012066820W WO2013060511A1 WO 2013060511 A1 WO2013060511 A1 WO 2013060511A1 EP 2012066820 W EP2012066820 W EP 2012066820W WO 2013060511 A1 WO2013060511 A1 WO 2013060511A1
Authority
WO
WIPO (PCT)
Prior art keywords
sensor
carrier element
sensor arrangement
carrier
arrangement according
Prior art date
Application number
PCT/EP2012/066820
Other languages
German (de)
English (en)
Inventor
Markus Bahr
Matthias LETZGUS
Klaus Lindner
Denis Kern
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2013060511A1 publication Critical patent/WO2013060511A1/fr

Links

Classifications

    • 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
    • G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching

Definitions

  • the present invention relates generally to measurement technology in vehicles.
  • the present invention relates to the positioning of a
  • the present invention relates to a
  • Hybrid vehicle with a mechanical bias and an electric machine and a vehicle, comprising an inventive
  • Convenience features a large number of different sensor elements that provide the control electronics of the vehicle current measurements.
  • sensor elements may be acceleration sensors for an ESP or ABS control, pressure sensors for hydraulic components of the vehicle or even temperature sensors.
  • These sensors are usually arranged at a defined position in the vehicle and thus set up to detect a local measured variable. For this purpose, it may be necessary for the respective sensor system to assume a specific, defined position, in order thereby to record a required measured value
  • conventional temperature sensors are placed directly on or on an element whose temperature is to be detected by the sensors.
  • the sensors can be mounted directly on or on the component and are therefore sensitive to external influences.
  • sensors like sensors with a material, such as a mounting material overmoulded, but this can result in a significantly increased space requirement.
  • Another implementation may lie in the use of a so-called slide, which, however, is also very process sensitive. Under sled is a plastic sprayed
  • Support member with relatively thick walls, as minimum wall thicknesses must be met, to understand, can be mounted in the sensitive sensor elements. Due to the sensitivity of certain
  • One aspect of the present invention may be in the safe and defined
  • the sensor element may in this case be e.g. be introduced into a substantially rectangular shaped carrier film, which is constructed for example of two carrier element halves, the sensor element and a possible conductive connection to another
  • the sensor element can preferably be arranged in a defined manner, while at the same time it can be protected from external influences by the carrier element.
  • a suitable choice of a material for the carrier element a fast reaction time of the sensor element can be ensured.
  • Sensor elements as a temperature sensor can / can be used here as, for example, NTC Temperature sensor, for example in S MD design, as a glass bead or mixed, be executed.
  • Carrier element in which the sensor elements are arranged, the sensor elements with surrounding elements or
  • Components are in contact and thereby absorb a required measure.
  • a carrier element substantially consists of a flexible foil
  • a direct arrangement on a component to be measured for example the support or the contact of the sensor element on the component for temperature determination, can not always be ensured.
  • the carrier element for example embodied as a flexible foil element, can have a resilient region, which is set up in this way, a sensor element in one direction out of its
  • Extension plane of the support element to put out and thus hang up, for example, to a nearby element or
  • the resilient region can thus also be understood as a deformation, in particular with a mechanical bias, which is suitable for contacting an adjacent component with the sensor element.
  • Sensor element always returns a substantially correct temperature reading by its permanent contact with the element to be measured.
  • a kind of spring element or a resilient region can be generated, which in addition to the mechanical
  • Preload for placement on a defined point compensate for component tolerances or can adapt the three-dimensional shape of the support member to nearby components for assembly.
  • the resilient region or the mechanical bias can be realized, for example, by a preformed three-dimensional configuration of the carrier element.
  • Such carrier elements may e.g. through a
  • thermoformed thermoforming process for example, be formed from a thermoforming sheet.
  • the carrier element consists of at least two carrier element halves
  • they can be glued against each other, so that a three-dimensional shaping of the carrier element results.
  • the foils can not be laid flat, but slightly displaced relative to one another or glued or glued or welded, so that a wavy or curved three-dimensional structure results, which provides the resilient region or the mechanical prestress.
  • such a three-dimensional deformation in the form of a shaft can only be realized locally at the position of the sensor element or it can also detect the carrier element over a large area.
  • Mechanical bias does not necessarily have to be realized at the actual position of the sensor element. It can also attack at another point or at another element, but still ensure that the sensor element is placed on a defined point due to the continuous, one-piece design of the support element.
  • a rib or wave shape of the carrier element may make it possible to direct liquid fillers or fluids, such as casting resin, preferably around the carrier element and thus allow a simple encapsulation of elements or components with a sensor arrangement arranged close to it.
  • the support element can also openings or
  • Perforationslöcher to allow a flow of a fluid.
  • An embedding of a sensor arrangement realizes here a reduction of the sensitivity of the sensor element, for example against breakdown at high voltage.
  • a possible creepage of a current in this case is more predictable and much better to implement compared to known paint or powder coatings, or other insulating materials.
  • That side of the sensor element which faces away from the element to be measured may be provided with a shield element which ensures that actions which could influence a measured value are essentially only from the side of the component to be measured act on the sensor element.
  • a shield element which ensures that actions which could influence a measured value are essentially only from the side of the component to be measured act on the sensor element.
  • this may be, for example, a temperature shield, so that a measured temperature is substantially only from the side not covered by the temperature shield.
  • One application of the sensor arrangement according to the invention is in an electrical machine, e.g. in their stator region to determine the temperature of the windings of the electric machine.
  • the stator can be soaked in a dip tank with a casting resin and thus shed, so that the sensor arrangement according to the invention remains in the casting resin.
  • Carrier element allow an improved backflow or flow through a fluid to or through the support element.
  • the sensor arrangement can also be used as a subsequently introduced element, in particular according to
  • the support element itself can also provide insulation of the sensor element or possibly existing conductors, for example flexible foil conductors, for connecting the sensor element to a further wiring.
  • a suitable embodiment of the carrier element can be realized by an end face or by its dimensions, length and width, as well as the known arrangement of the sensor element on the support member, a positioning on or on a component, so that the sensor assembly by attaching or plugging on / in a suitable holder due to the dimensions of the carrier element, the sensor element on the known or desired
  • FIGS. 1 a, b show an exemplary embodiment of a sensor arrangement according to the present invention
  • FIGS. 2a, b show exemplary embodiments of the carrier element according to the present invention.
  • FIG. 3 shows an exemplary application scenario of a
  • FIG. 1 a shows a plan view of a sensor arrangement 2 according to the invention, while FIG. 1 b shows a lateral cross section through the cross-sectional line A-A.
  • a sensor element 4 is arranged in a region of the sensor arrangement 2 and, shown only schematically, with flexible guide elements or foil conductors 12 with a conductor element 10, designed as an example as a pair
  • Guide elements 12 are in this case designed as a film with integrated conductor tracks. In a connection region 14, the guide elements 12 are electrically conductively connected to the conductor elements 10 and thereby connect sensor element 4 to the conductor elements 10.
  • Ladder elements 10 may now be laid arbitrarily in the vehicle,
  • Carrier element 6 has an essentially rectangular cross-section in FIG. 1a by way of example.
  • the lower side or else the further, lateral sides can be designed as a stop 18.
  • the carrier element can be on a defined edge or in a defined opening or arrange column and thus arrange sensor element 4 defined with respect to this edge.
  • the sensor element can rest on a component at a defined point in order to determine a desired sensor value there.
  • sensor element 4 may rest on a component and determine a temperature of the component there.
  • the carrier element has no continuous planar configuration, but has a resilient
  • Carrier element 6, thus the resilient region 8, can be realized on the one hand by a corresponding three-dimensional design of the carrier element 6 or by using substantially planar
  • Carrier element halves 6a, b which under mechanical tension
  • the sensor arrangement 2 can press the sensor element 4 onto a defined point of a component or contact it substantially flush, so that a preferred measured value determination, for example the temperature of the component, can be realized.
  • Sensor assembly 2 and the component to be measured can thus be compensated via the resilient region 8 using the bias voltage 8.
  • the resilient region 8 ensures that the sensor element 4 rests flush and conclusive on the component to be measured.
  • FIG. 2a shows a shaping of the carrier element 6 in the form of a shaft.
  • a shaping can in turn be realized by using a three-dimensional configuration of the carrier element, for example by using a thermoforming film or else by a continuously varying bonding of the individual carrier element halves to one another, whereby a corresponding wave structure can be realized.
  • a corrugated structure makes it possible, for example in a casting process, for a fluid to better circulate or flow behind the carrier element.
  • Perforation holes or openings 16 provided in the carrier element 6.
  • a fluid pass the support member 6 better via a waveform, it can also flow through the openings 16 therethrough to the rear. Air pockets or places where after a
  • FIG. 3 shows a part of an electric machine 20 for a vehicle.
  • FIG. 3 shows a stator of the electric machine 20 with individual coil windings 24 arranged in a housing 22.
  • a sensor arrangement 2 is arranged as an example between two windings 24.
  • the carrier element is in this case inserted between the coil windings 24 and protrudes only with an upper portion between the coil windings 24.
  • the sensor element 4 is thus located between the coil windings 24, lies in particular on a coil winding due to the mechanical
  • Preload 8 of the resilient portion 8 flush.
  • a preferred detection of a temperature of a coil winding 24 using the sensor element 4 can be realized.
  • Guide elements 12 lead in the carrier element 6 to conductor element 10, which subsequently in the vehicle e.g. connected to a suitable control unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

L'invention concerne un ensemble capteur (2) comprenant un élément capteur (4) et un élément porteur (6), l'élément capteur (4) étant disposé sur l'élément porteur (6), caractérisé en ce que l'élément porteur (6) présente une précontrainte mécanique (8) et l'élément porteur (6) est conçu pour placer l'élément capteur (4) sur un point défini au moyen de la précontrainte mécanique (8).
PCT/EP2012/066820 2011-10-24 2012-08-30 Ensemble capteur à précontrainte mécanique WO2013060511A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011085064.3 2011-10-24
DE102011085064A DE102011085064A1 (de) 2011-10-24 2011-10-24 Sensoranordnung mit mechanischer Vorspannung

Publications (1)

Publication Number Publication Date
WO2013060511A1 true WO2013060511A1 (fr) 2013-05-02

Family

ID=46980903

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/066820 WO2013060511A1 (fr) 2011-10-24 2012-08-30 Ensemble capteur à précontrainte mécanique

Country Status (2)

Country Link
DE (1) DE102011085064A1 (fr)
WO (1) WO2013060511A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014210724A1 (de) 2014-06-05 2015-12-31 Em-Motive Gmbh Sensoranordnung für einen Stator einer elektrischen Maschine sowie Stator
KR101602218B1 (ko) 2014-12-18 2016-03-10 두산중공업 주식회사 고정자 슬롯 온도센서 및 그 제조 방법
DE102018206985A1 (de) * 2017-08-11 2019-02-14 Em-Motive Gmbh Elektromotor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537053A (en) * 1966-01-19 1970-10-27 Robertshaw Controls Co Flexible temperature sensor for motor protection
DE19630794A1 (de) * 1996-07-31 1998-02-05 Bosch Gmbh Robert Temperaturmeßvorrichtung
EP2066008A1 (fr) * 2007-11-29 2009-06-03 Siemens Aktiengesellschaft Stator d'une machine dynamométrique doté de moyens d'enregistrement de la température

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3537053A (en) * 1966-01-19 1970-10-27 Robertshaw Controls Co Flexible temperature sensor for motor protection
DE19630794A1 (de) * 1996-07-31 1998-02-05 Bosch Gmbh Robert Temperaturmeßvorrichtung
EP2066008A1 (fr) * 2007-11-29 2009-06-03 Siemens Aktiengesellschaft Stator d'une machine dynamométrique doté de moyens d'enregistrement de la température

Also Published As

Publication number Publication date
DE102011085064A1 (de) 2013-04-25

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