EP3286536A1 - Dispositif de mesure pour détecter la température d'un enroulement de stator - Google Patents

Dispositif de mesure pour détecter la température d'un enroulement de stator

Info

Publication number
EP3286536A1
EP3286536A1 EP16714897.2A EP16714897A EP3286536A1 EP 3286536 A1 EP3286536 A1 EP 3286536A1 EP 16714897 A EP16714897 A EP 16714897A EP 3286536 A1 EP3286536 A1 EP 3286536A1
Authority
EP
European Patent Office
Prior art keywords
base body
measuring device
stator winding
temperature
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP16714897.2A
Other languages
German (de)
English (en)
Inventor
Andreas Kleindienst
Marcus Menzel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 Volkswagen AG filed Critical Volkswagen AG
Publication of EP3286536A1 publication Critical patent/EP3286536A1/fr
Ceased legal-status Critical Current

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

Definitions

  • the present invention relates to a measuring device, a system and a method for temperature detection of a stator winding of an electrical machine, in particular an electrical machine for a motor vehicle.
  • an arrangement for detecting the temperature of a stator winding of an electrical machine according to DE 10 2013 201 835 A1 is known in the prior art.
  • a temperature sensor disposed on a lance is cantilevered between two stator winding sections.
  • the temperature sensor is arranged via a connection conductor alignment element in a housing of the electrical machine and further protected by an outer plastic shell.
  • the arrangement shown in DE 10 2013 201 835 A1 has a relatively complex construction.
  • a measuring device for measuring a first aspect of the present invention a measuring device for
  • the measuring device has a temperature sensor with a sensor head for detecting a temperature of the stator winding.
  • the sensor head is embedded in a base body and encapsulated by the material of the base body.
  • Such a measuring device is characterized by a particularly simple and safe production.
  • the encapsulation of the sensor head by the material of the body can be performed in a single step.
  • the fact that the sensor head is encapsulated by the material of the body means that the sensor is completely covered by the material of the body
  • the sensor head is sprayed with the material of the body.
  • overmoulded or sprayed means in particular that the composite of sensor head and base body is replaced by a
  • Injection molding process is made, in which the material of the body is sprayed directly onto the sensor head.
  • the encapsulation of the sensor head by the material of the base body can also be realized in a particularly simple manner an effective protection for the sensor head.
  • the sensor head is preferably encapsulated by the material of the base body in such a way that it is self-retainingly embedded in the base body.
  • the material of the body is in a solid state.
  • the main body preferably has a self-supporting structure, whereby it offers a particularly good protective function for the sensor head.
  • the sensor head according to the invention is not limited to a specific head element.
  • the sensor head can be designed both as a separate head piece and as a head portion of a homogeneously extending portion of the temperature sensor.
  • the measuring device according to the invention is also particularly easy in a stator, for example, a clutch housing an electric machine for a hybrid electric drive, mountable. Due to the fact that the sensor head is embedded in the main body, a user can insert the basic body, including the sensor head, in a particularly simple and secure manner Place a stator housing. The sensitive sensor head is reliably protected by the overmolded body.
  • the base body as
  • Elastomer component formed which is at least partially elastically deformable.
  • a measuring device is provided which can be used particularly flexibly for detecting the temperature of the stator winding of the electrical machine. That the body as
  • Elastomer component is formed means that the body preferably made of a
  • Elastomer consists or this has at least as the predominant material component.
  • the main body is preferably elastically deformable such that a corresponding deformation can already be achieved by a person with little exercise of force. Because of that
  • Base body is designed as an elastomeric component, the measuring device can be squeezed, for example, in a stator housing or an opening in the same to excess, whereby the measuring device is securely positioned.
  • the base body has at least one surrounding the main body and elastically deformable sealing lip.
  • the measuring device can be used in a particularly reliable manner in a stator housing for measuring the temperature of the stator winding.
  • the sealing body around the main body and elastically deformable sealing lip the measuring device or the base body, for example, in such a way in the stator housing or the opening are used that a reliable seal between a within the
  • Stator housing lying oil space and the external environment is achieved.
  • the measuring device can also be clearly defined or positioned in a correspondingly designed stator housing. More precisely, the measuring device can be by simply pressing in one
  • the sealing lip is preferably designed as a radially surrounding the base body and elastically deformable sealing lip.
  • the temperature sensor has a PTC or NTC resistor. This can be a particularly cost-effective
  • the PTC or NTC resistor is preferably encapsulated by the material of the main body. PTC or NTC resistors are particularly easy to overmold. According to the present invention, it is further possible that the temperature sensor has a connection portion which is embedded in the base body and connected to the sensor head, wherein the connection portion is curved in the base body such that the connection portion and / or the sensor head parallel or substantially parallel to an end face of the base body are arranged. Due to the parallel arrangement of
  • connection portion and / or the sensor head of the temperature sensor to the end face of the body a large effective area of the sensor head as close to the end face of the body can be arranged, in particular on an end face, which faces the stator winding in the installed state of the measuring device. This allows the
  • the sensor head is in this case preferably formed at least in sections flat or at least partially encloses a defined surface, said surface or the flat portion is arranged parallel or substantially parallel to the end face of the base body.
  • Connecting portion is curved, for example, in a range of 60 to 120 degrees, preferably in a range of 70 to 1 10 degrees, more preferably in a range of 80 to 100 degrees.
  • the curvature is not in the context of the present invention on the
  • connection section is limited.
  • the connecting portion or a part of the connecting portion is not curved but to the sensor head or a corresponding head portion at an angle of 60 to 120 degrees, preferably from 70 to 1 10 degrees, particularly preferably from 80 to 100 degrees is arranged.
  • the base body has a cylindrical shape or substantially cylindrical shape with two end faces and a jacket surface and the temperature sensor has a connection portion which is embedded in the base body and connected to the sensor head, wherein the connection portion of the lateral surface of the base body penetrates.
  • a particularly short and thus space-saving measuring device can be provided. Furthermore, such a measuring device can be used particularly easily in a corresponding system for temperature detection. A person who uses the measuring device, for example, impressed, can load the measuring device on the front sides of the same unlimited, without having to pay attention to any kinking cables or other connection sections.
  • Base is not limited to a circular cylindrical shape.
  • the base body has an elliptical or prismatic cylindrical shape.
  • the base body is configured cuboid, wherein the longer sides of the cuboid define a lateral surface and the
  • Connecting portion of this lateral surface of the cuboid base body on a penetrates corresponding longitudinal side.
  • the cylindrical or cuboid base body has beveled end faces, wherein the connecting element penetrates a beveled end side such that it is orthogonal to a lateral surface of the base body or in the section of the penetration of the bevelled end face
  • Penetration of the body does not extend beyond the length thereof.
  • the system according to the invention has the measuring device described above, wherein the base body is at least partially positively arranged in an opening of a housing of the electric machine and on the stator winding.
  • Measuring device can be achieved, in which the measuring device is simply pushed or plugged from outside the electric machine in the opening of the housing.
  • Under the housing of the electric machine is in particular a stator housing or a
  • the temperature sensor is already embedded in the body and thus protected accordingly.
  • the main body of the measuring device is arranged in the system such that it forms a positive connection between the stator winding and the housing or the opening of the housing.
  • the base body may have a further sealing lip or a further circumferential projection, which is arranged between the stator winding and the housing.
  • the further or second sealing lip is in contrast to the at least one first sealing lip preferably not or substantially not in an elastically deformed state. That is, when the main body of the
  • the at least one first sealing lip is preferably in an elastically deformed state in the opening of the housing and by means of the second sealing lip is or is made by the main body a positive connection between the housing and the stator winding.
  • the second sealing lip is in this case preferably partially or completely outside the opening of the housing. It is a further advantage here if the second sealing lip in the undeformed state has a greater height, preferably at least twice as high as the first sealing lip in the undeformed state. This allows the measuring device particularly safe in the Place opening of the housing, which in turn can be guaranteed a reliable temperature detection of the stator winding.
  • the base body is at least
  • At least one encircling the base body and elastically deformable sealing lip of the base body is elastically deformed in the arrangement of the main body in the opening of the housing. That is, according to this development, not the entire body must be in an elastically deformed or crimped state in the opening of the housing, but it is sufficient if the designated sealing lip is crimped or elastically deformed to a certain extent or is ,
  • the sealing lip is preferably designed as a ring-shaped or annular projection which extends around the base body. In the case of a cylindrical base body, the sealing lip is preferably designed as a radially surrounding the base body and elastically deformable sealing lip.
  • the method according to the invention brings about the same advantages as have been described in detail with reference to the device according to the invention.
  • the present measuring device is therefore preferably inserted into the opening of the housing such that the base body of the measuring device is elastically deformed at least in sections.
  • FIG. 1 shows a measuring device according to an embodiment of the present invention
  • FIG. 2 shows a system according to an embodiment of the present invention in a side sectional view
  • FIG. 3 shows a system according to another embodiment of the present invention
  • FIG. 4 is a flowchart for illustrating a method for
  • FIG. 1 shows a measuring device 10 for temperature detection of a stator winding 120 of an electric machine according to a first embodiment of the present invention.
  • the measuring device 10 illustrated in FIG. 1 has a temperature sensor 20 with a sensor head 22 for detecting a temperature of the stator winding 120.
  • the sensor head 22 is embedded in a main body 30 and thereby encapsulated by the material of the main body 30. More specifically, the temperature sensor 20 shown in FIG. 1 is overmolded with an elastomer which forms the main body 30.
  • the main body 30 has, according to FIG. 1, a cylindrical shape with two end faces 26 and a lateral surface 24.
  • the temperature sensor further has a connection section 28 in the form of two connecting wires, which converge in the sensor head 22.
  • the sensor head 22 shown in FIG. 1 is designed as a wire section with an integrated sensor head 22.
  • Of the Connecting portion 28 is curved in the region of an end face in the base body 30 such that the connection portion 28 and / or the sensor head 22 are arranged parallel or substantially parallel to the end face 26 of the base body 30.
  • the connection portion 28 and / or the sensor head 22 are arranged parallel or substantially parallel to the end face 26 of the base body 30.
  • the base body 30 shown in FIG. 1 also has two first sealing lips 32 that rotate radially around the main body 30 and are elastically deformable.
  • the main body 30 shown in Fig. 1 has a radially around the base body 30 encircling and elastically deformable second sealing lip 34 which has a greater height than the two first sealing lips.
  • FIG. 2 shows a system 100 for detecting the temperature of the stator winding 120.
  • the system has the measuring device according to the invention, wherein the base body 30 is arranged in sections in a form-fitting manner in an opening 12 of a housing 110 of the electric machine and on the stator winding 120. More precisely, the base body according to FIG. 2 is arranged in the opening 12 of the housing 110 such that the first sealing lips 32 are elastically deformed or crimped.
  • the second sealing lip 34 is not or hardly elastically deformed and contributes to the positive connection of the base body 30 between the housing 1 12 and the stator winding 120 at.
  • FIG. 3 shows the system 100 according to the invention according to another embodiment of the present invention.
  • the system shown in FIG. 3 is characterized in particular by the fact that the temperature sensor 10 has a PTC or NTC resistor and the sensor head 22 is designed accordingly.
  • Connecting portion 28 shortly before reaching the sensor head 22 are in this case arranged parallel or substantially parallel to the end face 26 of the base body 30. That the
  • Connecting portion 28 or a portion of the connecting portion is arranged parallel or substantially parallel to the end face 26 of the base body 30 means that it is parallel or substantially parallel, in particular not orthogonal, to the end face 26.
  • the measuring device 10 For temperature detection of the stator winding 120 of the electric machine, the measuring device 10 is first placed in the opening 1 12 of the housing 1 10 of the system 100 in a first step S1 that the main body 30 at least partially positively in the opening 1 12 of the housing 1 10 of electric machine and on the stator winding 120 is arranged. In a subsequent step S2, the temperature of the stator winding 120 can now be detected by means of the measuring device 10. List of reference measuring device

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

La présente invention concerne un dispositif de mesure (10), destiné à détecter la température d'un enroulement de stator (120) d'une machine électrique, comprenant un capteur de température (20) pourvu d'une tête de capteur (22) destinée à détecter la température de l'enroulement de stator (120). La tête de capteur (22) est noyée dans un corps de base (30) et enrobée par le matériau du corps de base (30). La présente invention concerne en outre un système (100), destiné à détecter la température d'un enroulement de stator (120) d'une machine électrique, comprenant le dispositif de mesure de l'invention (10). Le corps de base (30) est disposé par complémentarité de formes au moins par endroits dans une ouverture (112) d'un boîtier (110) de la machine électrique ainsi qu'au niveau de l'enroulement de stator (120). Le dispositif de mesure de l'invention et le système permettent de détecter la température d'un enroulement de stator d'une machine électrique de manière particulièrement simple, peu coûteuse et sûre.
EP16714897.2A 2015-04-24 2016-04-06 Dispositif de mesure pour détecter la température d'un enroulement de stator Ceased EP3286536A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015106377.8A DE102015106377A1 (de) 2015-04-24 2015-04-24 Messvorrichtung zur Temperaturerfassung einer Statorwicklung
PCT/EP2016/057540 WO2016169770A1 (fr) 2015-04-24 2016-04-06 Dispositif de mesure pour détecter la température d'un enroulement de stator

Publications (1)

Publication Number Publication Date
EP3286536A1 true EP3286536A1 (fr) 2018-02-28

Family

ID=55697193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16714897.2A Ceased EP3286536A1 (fr) 2015-04-24 2016-04-06 Dispositif de mesure pour détecter la température d'un enroulement de stator

Country Status (4)

Country Link
EP (1) EP3286536A1 (fr)
CN (1) CN107532946B (fr)
DE (1) DE102015106377A1 (fr)
WO (1) WO2016169770A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019121189A1 (de) * 2019-04-26 2020-10-29 Schaeffler Technologies AG & Co. KG Elektrische Maschine
EP3790174A1 (fr) 2019-09-06 2021-03-10 Vestas Wind Systems A/S Stator d'une machine electrique avec capteur de temperature amovible

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4117290C2 (de) * 1991-05-27 2000-05-31 Mannesmann Vdo Ag Temperaturgeber
JP2921752B2 (ja) * 1996-09-18 1999-07-19 ファナック株式会社 電動機の巻線温度検出素子の取付け方法および取付け具
EP1221601B1 (fr) * 2001-01-04 2008-02-13 VWH Vorrichtungs- und Werkzeugbau Herschbach GmbH Méthode pour fabriquer un élément électrique, ainsi que ledit élément
DE10130982A1 (de) * 2001-06-27 2003-01-16 Ephy Mess Ges Fuer Elektro Phy Temperaturfühler für die Statorwicklung von Elektromotoren
JP3699025B2 (ja) * 2001-09-19 2005-09-28 株式会社日立製作所 電動機の巻線温度検出素子の取付け構造及びそれを用いた電動機
WO2006100839A1 (fr) * 2005-03-23 2006-09-28 Toyota Jidosha Kabushiki Kaisha Sonde de temperature et structure anti-ecoulement pour matiere de fixation
JP5193986B2 (ja) * 2009-11-27 2013-05-08 日立オートモティブシステムズ株式会社 温度センサおよび回転電機
DE102010030968B4 (de) * 2010-07-06 2012-02-02 Zf Friedrichshafen Ag Temperatursensor und Anordnung zur Erfassung einer Temperatur einer elektrischen Maschine mit einem Temperatursensor
DE102011084229A1 (de) * 2011-10-10 2013-04-11 Robert Bosch Gmbh Temperatursensor mit integriertem Toleranzausgleich und Haltekraft
DE102012011004A1 (de) * 2012-06-02 2013-12-05 Volkswagen Aktiengesellschaft Elektromotor sowie Verfahren zur Bildung eines Aufnahmeraums für einen Temperatursensor in einem Elektromotor
DE102013201835A1 (de) 2013-02-05 2014-08-21 Zf Friedrichshafen Ag Anordnung zur Temperaturerfassung einer Statorwicklung einer elektrischen Maschine
CN204104237U (zh) * 2014-09-26 2015-01-14 韩长庆 一种水族箱水体温度测量装置的密封结构

Also Published As

Publication number Publication date
CN107532946B (zh) 2020-08-07
WO2016169770A1 (fr) 2016-10-27
CN107532946A (zh) 2018-01-02
DE102015106377A1 (de) 2016-10-27

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