DE10327366A1 - Motor vehicle windscreen heater testing system in which an inductive sensor head is passed over the wires of the heater in order to detect inductive current peaks corresponding to each heater wire - Google Patents
Motor vehicle windscreen heater testing system in which an inductive sensor head is passed over the wires of the heater in order to detect inductive current peaks corresponding to each heater wire Download PDFInfo
- Publication number
- DE10327366A1 DE10327366A1 DE2003127366 DE10327366A DE10327366A1 DE 10327366 A1 DE10327366 A1 DE 10327366A1 DE 2003127366 DE2003127366 DE 2003127366 DE 10327366 A DE10327366 A DE 10327366A DE 10327366 A1 DE10327366 A1 DE 10327366A1
- Authority
- DE
- Germany
- Prior art keywords
- test system
- conductors
- heater
- sensor
- evaluation unit
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/023—Industrial applications
- H05B1/0236—Industrial applications for vehicles
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/035—Electrical circuits used in resistive heating apparatus
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
Für die Überprüfung der Stromdurchgängigkeit der Leiter einer beheizten Scheibe, insbesondere einer Kraftfahrzeugscheibe, wird ein Prüfsystem vorgeschlagen, bei dem die Stromdurchgängigkeit der leiter induktiv überprüft wird.For checking the current continuity of the conductors of a heated window, in particular a motor vehicle window, a test system is proposed in which the current continuity of the conductors is checked inductively.
Description
Die Erfindung betrifft ein Prüfsystem für elektrische Leiter, die in Scheiben, insbesondere in Glasscheiben von Kraftfahrzeugen, verlaufen.The invention relates to a test system for electrical Conductors in panes, in particular in panes of motor vehicles, run.
Scheiben, insbesondere Scheiben von Kraftfahrzeugen, sind häufig mit eingebetteten elektrischen Leitern versehen. Vor allem gilt dies für beheizte Heckscheiben von Kraftfahrzeugen, die als Glasscheiben eingebettete, meist als Heizfäden bezeichnete Leiter aufnehmen, welche in Parallelanordnung beabstandet zueinander vor allem im sichtrelevanten mittleren Bereich der Heckscheiben vorgesehen sind und in Fahrzeugquerrichtung zwischen den in Fahrzeuglängsrichtung verlaufenden Sammelschienen verlaufen, von denen die Versorgungsanschlüsse ausgehen.Discs, in particular discs from Motor vehicles are common provided with embedded electrical conductors. Most importantly this for heated rear windows of motor vehicles as glass panes embedded, mostly as filaments Pick up designated conductors, which are spaced in parallel arrangement to each other, especially in the view-relevant middle area of the rear windows are provided and in the vehicle transverse direction between those in the vehicle longitudinal direction running busbars from which the supply connections originate.
Die Überprüfung solcher beheizbarer Scheiben auf vollständige Funktion, d. h. auf Durchgängigkeit aller Heizleiter im Wege der Widerstandsprüfung, ist grundsätzlich zwar möglich, erlaubt aufgrund der schwankenden Widerstandswerte der einzelnen Heizleiter aber keine sichere Aussage darüber, ob alle Heizleiter Stromdurchgang haben.The review of such heated panes on complete Function, d. H. for consistency all heating conductors by means of resistance testing, is basically possible, allowed due to the fluctuating resistance values of the individual heating conductors but not a sure statement about whether all heating conductors have continuity.
Bei einer anderen Prüfmethode werden die beheizten Scheiben mit einer Wärmebildkamera und einer nachgeordneten Auswerteeinheit überprüft. Damit lassen sich zwar sichere Prüfergebnisse gewährleisten, der hierfür notwendige Zeitaufwand ist aber hoch, so dass, schon aus Kostengründen, dieses Verfahren nur für Einzelüberprüfungen oder bei sehr hochwertigen Scheiben in Frage kommt.With another test method are the heated panes with a thermal imager and a subordinate Evaluation unit checked. In order to reliable test results can be achieved guarantee, the one for this However, the time required is high, so that, for cost reasons alone, this Procedure only for Individual reviews or with very high quality panes.
Ein solches Verfahren eignet sich insbesondere auch nicht dazu, gegebenenfalls weitere in die jeweilige Scheibe eingebettete Leiter, wie z. B. Antennenschleifen, mit der gleichen Methode zu überprüfen.Such a method is suitable in particular not to do so, if necessary, further in each Disk embedded conductors, such as B. antenna loops with same method to check.
Der Erfindung liegt die Aufgabe zugrunde, ein Prüfsystem für in und an Scheiben vorgesehene elektrische Leiter aufzuzeigen, das die Überprüfung aller Leiter, insbesondere aber von Heizleitern schnell und zuverlässig ermöglicht.The invention is based on the object Test System for in and to provide electrical conductors provided on disks, the checking everyone Conductors, especially heating conductors, quickly and reliably.
Erreicht wird dies bei einem Prüfsystem der eingangs genannten Art mit einer induktiven Überprüfung der Durchgängigkeit, die sich bei geringem zeitlichen und apparativen Aufwand von Hand oder automatisiert durchführen lässt und die sich daher auch für eine generelle Überprüfung von mit elektrischen Leitern versehenen Scheiben eignet.This is achieved with a test system of the type mentioned at the beginning with an inductive check of the continuity, which can be done by hand with little expenditure of time and equipment or perform automated lets and which is therefore also for a general review of discs provided with electrical conductors are suitable.
Besonders zweckmäßig ist das erfindungsgemäße Prüfsystem in Verbindung mit beheizbaren Scheiben einzusetzen, die zumindest bereichsweise parallel verlaufende Heizleiter aufweisen, wie dies häufig bei beheizten Heckscheiben gegeben ist, indem die jeweilige Scheibe in ihrem Bereich mit überschneidungsfrei verlaufenden Heizleitern mit einem Sensor überstrichen wird, der an eine Auswerteeinheit angeschlossen ist, welche bevorzugt eine Zähleinheit umfasst.The test system according to the invention is particularly expedient use in conjunction with heated panes, at least have in some areas parallel heating conductors, as is often the case with heated rear windows is given by the respective window in their area with no overlap running heating conductors with a sensor that is connected to a Evaluation unit is connected, which is preferably a counting unit includes.
Über die Auswerteeinheit werden die bei Überstreichen der Leiter mit dem Sensor auftretenden Spannungsspitzen erfasst, wobei zweckmäßigerweise die über die Auswerteeinheit erfasste Zahl der Spannungsspitzen gegen die Zahl der zu überprüfenden Leiter als Richtzahl abgeglichen wird. Zweckmäßig ist es in diesem Zusammenhang der Auswerteeinheit auch eine Signaleinrichtung zuzuordnen, die Abweichungen von der Richtzahl und damit Fehler anzeigt.about the evaluation unit becomes the same when the conductor is swept over voltage peaks occurring to the sensor are detected, expediently the above the evaluation unit recorded the number of voltage peaks against the Number of conductors to be checked is compared as a guideline. It is useful in this context to assign a signal device to the evaluation unit, which Indicates deviations from the target number and thus errors.
Es liegt aber im Rahmen der Erfindung, bei Erfassung der in der Scheibe verlaufenden Leitungen in ihrer Abfolge, bereits im Prüfverfahren einen jeweiligen, als fehlerhaft erkannten Leiter zu registrieren und gegebenenfalls auch zu markieren, beispielsweise durch Aufbringung einer Farbmarke.However, it is within the scope of the invention when detecting the lines running in the disc in their Sequence, already in the test procedure to register a respective conductor identified as faulty and if necessary, also to mark, for example by application a color mark.
Weitere Einzelheiten und Merkmale der Erfindung ergeben sich aus den Ansprüchen. Ferner wird die Erfindung nachstehend anhand eines schematisierten Ausführungsbeispieles erläutert, wobeiFurther details and features the invention result from the claims. Furthermore, the invention explained below using a schematic embodiment, wherein
In
Mit dem Einbau derartiger beheizter
Heckscheiben
Dem wird durch das erfindungsgemäße Prüfsystem
abgeholfen, bei dem die Durchgängigkeit
der Heizleiter
Der Sensor
Der Arbeitskopf
Ferner weist der tubenförmige Ansatz
Für
die Prüfung
der Stromdurchgängigkeit der
Heizleiter
So können im Rahmen der Erfindung
sowohl jeweils beim Überkreuzen
der Heizleiter
Im Ausführungsbeispiel ist die Auswerteeinheit
Der Sensor
Claims (13)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003127366 DE10327366A1 (en) | 2003-06-16 | 2003-06-16 | Motor vehicle windscreen heater testing system in which an inductive sensor head is passed over the wires of the heater in order to detect inductive current peaks corresponding to each heater wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003127366 DE10327366A1 (en) | 2003-06-16 | 2003-06-16 | Motor vehicle windscreen heater testing system in which an inductive sensor head is passed over the wires of the heater in order to detect inductive current peaks corresponding to each heater wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10327366A1 true DE10327366A1 (en) | 2004-09-02 |
Family
ID=32798191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2003127366 Withdrawn DE10327366A1 (en) | 2003-06-16 | 2003-06-16 | Motor vehicle windscreen heater testing system in which an inductive sensor head is passed over the wires of the heater in order to detect inductive current peaks corresponding to each heater wire |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10327366A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017071918A1 (en) * | 2015-10-26 | 2017-05-04 | Osram Gmbh | Converter device and irradiation device having such a converter device |
| CN107167688A (en) * | 2017-05-05 | 2017-09-15 | 福耀玻璃工业集团股份有限公司 | A kind of detection means of vehicle glass conductive printed wire |
| CN114264918A (en) * | 2020-09-16 | 2022-04-01 | 柏研时代航发科技(北京)有限公司 | Device and method for detecting electric heating assembly of airplane windshield glass |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1960103A1 (en) * | 1969-11-29 | 1971-06-03 | Volkswagenwerk Ag | Method for testing the electrical continuity of parallel-connected heating filaments embedded in a pane |
| US4610710A (en) * | 1983-05-05 | 1986-09-09 | Ppg Industries, Inc. | Method for utilizing magnetic field sensing means for detecting discontinuities in a conductor member associated with a glass sheet |
-
2003
- 2003-06-16 DE DE2003127366 patent/DE10327366A1/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1960103A1 (en) * | 1969-11-29 | 1971-06-03 | Volkswagenwerk Ag | Method for testing the electrical continuity of parallel-connected heating filaments embedded in a pane |
| US4610710A (en) * | 1983-05-05 | 1986-09-09 | Ppg Industries, Inc. | Method for utilizing magnetic field sensing means for detecting discontinuities in a conductor member associated with a glass sheet |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017071918A1 (en) * | 2015-10-26 | 2017-05-04 | Osram Gmbh | Converter device and irradiation device having such a converter device |
| US10788196B2 (en) | 2015-10-26 | 2020-09-29 | Osram Beteiligungsverwaltung Gmbh | Converter device and irradiation device having such a converter device |
| CN107167688A (en) * | 2017-05-05 | 2017-09-15 | 福耀玻璃工业集团股份有限公司 | A kind of detection means of vehicle glass conductive printed wire |
| CN107167688B (en) * | 2017-05-05 | 2019-07-05 | 福耀玻璃工业集团股份有限公司 | A kind of detection device of vehicle glass conductive printed wire |
| CN114264918A (en) * | 2020-09-16 | 2022-04-01 | 柏研时代航发科技(北京)有限公司 | Device and method for detecting electric heating assembly of airplane windshield glass |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAV | Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1 | ||
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8130 | Withdrawal |