DE10159518A1 - Vacuum insulation panel with an integrated pressure monitoring system comprises a foil cover which also serves as a measuring membrane - Google Patents

Vacuum insulation panel with an integrated pressure monitoring system comprises a foil cover which also serves as a measuring membrane

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Publication number
DE10159518A1
DE10159518A1 DE10159518A DE10159518A DE10159518A1 DE 10159518 A1 DE10159518 A1 DE 10159518A1 DE 10159518 A DE10159518 A DE 10159518A DE 10159518 A DE10159518 A DE 10159518A DE 10159518 A1 DE10159518 A1 DE 10159518A1
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Prior art keywords
vip
insulation panel
vacuum insulation
sensor
film covering
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DE10159518A
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German (de)
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Individual
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Individual
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Priority to DE10159518A priority Critical patent/DE10159518A1/en
Publication of DE10159518A1 publication Critical patent/DE10159518A1/en
Withdrawn legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/78Heat insulating elements
    • E04B1/80Heat insulating elements slab-shaped
    • E04B1/803Heat insulating elements slab-shaped with vacuum spaces included in the slab
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L59/00Thermal insulation in general
    • F16L59/06Arrangements using an air layer or vacuum
    • F16L59/065Arrangements using an air layer or vacuum using vacuum
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00Investigating fluid-tightness of structures
    • G01M3/02Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/32Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
    • G01M3/3236Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
    • G01M3/3272Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/24Structural elements or technologies for improving thermal insulation
    • Y02A30/242Slab shaped vacuum insulation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B80/00Architectural or constructional elements improving the thermal performance of buildings
    • Y02B80/10Insulation, e.g. vacuum or aerogel insulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

The vacuum insulation panel (VIP) with an integrated pressure monitoring system comprises a foil cover which also serves as a measuring membrane.

Description

Stand der TechnikState of the art

Vakuum-Isolations-Paneele (VIP) - wie beispielsweise aus DE 198 14 271 A1 und DE 298 09 807 oder DE 298 11 136.5 bekannt - sind bezüglich ihrer Funktionsfähigkeit auf einen dauerhaften Erhalt des einmal eingestellten Vakuums (Restgasdruckes in der Isolierung) angewiesen. Mit ansteigendem Restgasdruck nimmt das Isoliervermögen ab. Ursache für einen Anstieg des Restgasdruckes (Verschlechterung des Vakuums) kann einerseits eine tatsächliche Leckage in der Umhüllung des VIP sein - die u. U. auch bereits durch Fehler bei der Herstellung bedingt ist - andererseits führen andauernde Diffusions- und Permeationsvorgänge durch die Folienumhüllung immer zu einem Druckanstieg und damit zu einer Begrenzung der Lebensdauer des VIP. Vacuum insulation panels (VIP) - such as from DE 198 14 271 A1 and DE 298 09 807 or DE 298 11 136.5 are known - are with regard to their Functionality on permanent maintenance of the vacuum once set (Residual gas pressure in the insulation). With increasing residual gas pressure the insulating ability decreases. Cause of an increase in the residual gas pressure (Worsening of the vacuum) can cause an actual leak in the one hand Serving the VIP - the u. U. also due to manufacturing errors is conditional - on the other hand permanent diffusion and permeation processes lead the film wrapping always leads to an increase in pressure and thus to a Limiting the lifespan of the VIP.

Für den Hersteller der VIP ist es daher wünschenswert oder gar notwendig, die Funktionsfähigkeit der Isolierpaneele und/oder den exakt eingestellten Restgasdruck im VIP am Ende der Fertigungslinie zu bestimmen. Der Anwender derartiger Isolierungen möchte durch laufende oder zyklische Überwachung verlässliche Vorhersagen zur Restlebensdauer treffen können. For the manufacturer of the VIP it is therefore desirable or even necessary that Functionality of the insulation panels and / or the exactly set residual gas pressure to be determined in the VIP at the end of the production line. The user of such Insulations want reliable or ongoing monitoring Can make predictions about the remaining life.

Gängige, aus der Vakuumtechnik bekannte Druckmessmethoden scheiden zur Überwachung von Serienprodukten von vornherein aus, weil derartige Meßsysteme aufwändig und teuer sind und zudem immer mit einem Durchbruch durch die vakuumdichte Umhüllung des VIP - und damit einer zusätzlichen, potentiellen Leckage verbunden sind. Common pressure measurement methods known from vacuum technology are excluded Monitoring of series products from the outset, because such measuring systems are complex and expensive and also always with a breakthrough vacuum-tight wrapping of the VIP - and thus an additional, potential Leakage are connected.

Wegen der physikalisch gegebenen Abhängigkeit und Charakteristik zwischen Druck und spezifischer Wärmeleitfähigkeit ist auch eine Funktionsüberwachung mittels Wärmeleitfähigkeitsmessung und/oder Wärmebildgebungsverfahren sehr aufwändig und deswegen als Qualitätsprüfungsmethode nicht tauglich. Because of the physically given dependency and characteristics between pressure and specific thermal conductivity is also a function monitoring by means of Thermal conductivity measurement and / or thermal imaging method very complex and therefore not suitable as a quality inspection method.

Als relativ einfache Prüfmethode hat sich im Fertigungsbereich bislang ein Verfahren etabliert, bei dem die VIP nach dem Evakuieren und Verschließen in einem Autoklaven mit einem Hüllvakuum beaufschlagt werden. Sobald das umhüllende Vakuum in etwa den Restgasdruck im Innern des VIP erreicht hat, beginnt die Hüllfolie des VIP abzuheben, was beispielsweise über einen Laser gemessen werden kann. Die Methode liefert allerdings nur relativ ungenaue Ergebnisse und keine gesicherten Erkenntnisse bei kleineren Leckagen (oder es müssen längere Lagerzeiten zwischen der Fertigstellung und der Prüfung des VIP eingehalten werden). Außerdem lässt sich ein solches Verfahren nicht zur laufenden Überwachung von bereits im Einsatz befindlichen VIP einsetzen. So far, a method has proven to be a relatively simple test method in the production area established, in which the VIP after evacuation and sealing in one Autoclave with an envelope vacuum. Once the enveloping Vacuum has approximately reached the residual gas pressure inside the VIP, the begins Take off the VIP's wrapping film, which was measured using a laser, for example can be. However, the method only delivers relatively imprecise results and no reliable knowledge in the case of minor leaks (or longer ones are necessary) Storage times between completion and the examination of the VIP are observed become). In addition, such a procedure cannot be carried out Use monitoring of VIPs already in use.

Beschreibungdescription

Aufgabe der vorliegenden Erfindung ist es, ein einfaches und kostengünstiges Meßsystem und -Verfahren zu etablieren, welches die Bestimmung des Restgasdruckes im VIP (und damit dessen Funktionsfähigkeit) zu jedem beliebigen Zeitpunkt sowohl nach der Herstellung als auch während des Betriebs ermöglicht. The object of the present invention is a simple and inexpensive Establish measuring system and method, which determines the determination of the Residual gas pressure in the VIP (and thus its functionality) to any one This is possible both after production and during operation.

Versuche haben überraschenderweise gezeigt, dass sich der Restgasdruck im VIP mit hinreichender Genauigkeit aus der Vorspannung der Folienumhüllung der VIP bestimmen lässt. Durch die Differenz aus dem umgebenden Atmosphärendruck und dem Vakuum im innern des VIP verhält sich die Folienumhüllung wie eine eingespannte, belastete Membran. Annähernd gleichbleibenden Umgebungsdruck vorausgesetzt, lässt der Spannungszustand der Folie Rückschlüsse auf den Restgasdruck im VIP zu. Der Spannungszustand der Folie lässt sich zuverlässig z. B. mittels Dehnungsmessstreifen bestimmen. Wird ein solcher Sensor unmittelbar nach der Fertigstellung des VIP auf die Folienumhüllung aufgeklebt, kann dieser Ausgangszustand als optimaler Druck festgehalten werden und Änderungen im Druckzustand sind entsprechend messbar. Surprisingly, tests have shown that the residual gas pressure in the VIP with sufficient accuracy from the pre-tensioning of the film wrapping of the VIP can be determined. By the difference from the surrounding atmospheric pressure and the vacuum inside the VIP, the foil wrapper behaves like one clamped, loaded membrane. Almost constant ambient pressure assuming the tension state of the film allows conclusions to be drawn about the Residual gas pressure in the VIP too. The tension state of the film can be reliably z. B. determine using strain gauges. Will such a sensor immediately after the VIP can be glued to the foil wrapping when it is finished Initial state can be recorded as optimal pressure and changes in the Pressure conditions can be measured accordingly.

Eine weitere Möglichkeit der Bestimmung des Spannungszustandes stellen sogenannte Piezofolien aus hochpolarisiertem Polyvinylfluorid (PVDF) dar. Gegenüber den DMS haben diese Folien im vorliegenden Fall den Vorteil, dass sie einfacher aufgebaut sind und auf dem VIP nicht auftragen. Another possibility to determine the state of tension so-called piezo films made of highly polarized polyvinyl fluoride (PVDF). In the present case, these foils have the advantage over the DMS that they are simpler and do not apply to the VIP.

Derartige Foliensensoren können entweder aufgeklebt oder fest mit der Folienumhüllung des VIP verschweißt werden. Entsprechend dem erwarteten Spannungszustand sowie der erforderlichen Messwertauflösung sind die messaktiven Folien mit Linien- Punkte- oder Matrixrastern zu versehen. Such film sensors can either be glued or fixed to the Foil wrapping of the VIP are welded. According to the expected The voltage state and the required measurement resolution are the to provide measurement-active foils with line, dot or matrix grids.

Wie praktische Versuche ergeben haben, lässt sich die Genauigkeit der Meßmethode und die Signalauswertung weiter verbessern, wenn im Stützkörper des VIP am Applikationsort des Sensors eine Vertiefung eingearbeitet wird, so dass die Folienumhüllung des VIP in diesem Bereich (durch die Druckdifferenz) stärker vorgespannt wird (s. Fig. 1) As practical tests have shown, the accuracy of the measurement method and the signal evaluation can be further improved if a recess is worked into the support body of the VIP at the application site of the sensor, so that the film wrapping of the VIP is pre-tensioned in this area (by the pressure difference) ( see Fig. 1)

Für die eigentliche Messwerterfassung besteht einerseits die Möglichkeit, die Messelektronik direkt am Sensor anzuschließen. Dies bedeutet allerdings, dass die zu überwachenden VIP und deren Meß-Sensoren frei zugänglich sind - die Drucküberwachung ist also in der Regel nicht am eingebauten VIP möglich. On the one hand, there is the possibility for the actual measurement value acquisition Connect measuring electronics directly to the sensor. However, this means that the to be monitored VIP and their measuring sensors are freely accessible - the Pressure monitoring is therefore generally not possible on the built-in VIP.

Deshalb wurde eine andere Möglichkeit der Messwerterfassung untersucht und erprobt. Direkt am Sensor wird ein spezieller Transponder appliziert, der sowohl die Messbrückenschaltung/Verstärker als auch Speichereinheit und Sende-/Empfangs- Antenne beinhaltet. Speisespannung für die Messbrückenschaltung sowie Steuersignale können jetzt von außen mittels einer Sende-/Empfangseinheit übertragen werden und entsprechende Meß-Signale werden auf gleichem Wege empfangen. Außerdem ist ein Vergleich mit den im Transponder gespeicherten Werten aus vergangenen Messperioden möglich. Therefore another possibility of data acquisition was examined and tested. A special transponder is applied directly to the sensor Measuring bridge circuit / amplifier as well as memory unit and transmit / receive Antenna included. Supply voltage for the measuring bridge circuit as well Control signals can now be transmitted from the outside using a transmitter / receiver unit are transmitted and corresponding measurement signals are sent in the same way receive. There is also a comparison with those saved in the transponder Values from past measurement periods possible.

Auf diese Art und Weise ist eine langzeitige Drucküberwachung sowohl an freiliegenden als auch an verbauten VIP möglich. In this way, long-term pressure monitoring is both on Exposed as well as built-in VIP possible.

Die Fig. 1 zeigt ein Vakuum-Isolationspaneel mit der erfindungsgemäßen Druckmesseinrichtung. Die Komponenten sind im einzelnen wie folgt bezeichnet: 1 vakuumdichte Folienumhüllung
1a Siegelnaht
2 Stützmaterial des VIP
3 Vertiefung im Stützmaterial
4 Sensor
5 Meßgerät
6 Transponder
Fig. 1 shows a vacuum insulation with the inventive pressure measurement device. The individual components are identified as follows: 1 vacuum-tight film wrapping
1 a sealed seam
2 VIP support material
3 recess in the support material
4 sensor
5 measuring device
6 transponders

Weitere Möglichkeiten der Ausgestaltung sind in den Fig. 2 und 3 dargestellt. Further design options are shown in FIGS. 2 and 3.

Claims (10)

1. Vakuum-Isolationspaneel (VIP) mit integrierter Drucküberwachung dadurch gekennzeichnet, daß die Folienumhüllung des VIP gleichzeitig als Meß- Membran (1) dient. 1. Vacuum insulation panel (VIP) with integrated pressure monitoring, characterized in that the film covering of the VIP also serves as a measuring membrane ( 1 ). 2. Vakuum-Isolationspaneel (VIP) nach Anspruch 1 dadurch gekennzeichnet, dass der Stützkörper (2) des VIP an einer Stelle eine runde, ca. 5 mm tiefe Ausarbeitung (3) besitzt und dadurch eine definierte Vorspannung der Folienumhüllung (1) erreicht wird, sobald das VIP evakuiert ist. 2. Vacuum insulation panel (VIP) according to claim 1, characterized in that the support body ( 2 ) of the VIP at one point has a round, approximately 5 mm deep elaboration ( 3 ) and thereby a defined bias of the film covering ( 1 ) is achieved as soon as the VIP is evacuated. 3. Vakuum-Isolationspaneel (VIP) nach den Ansprüchen 1 und 2 dadurch gekennzeichnet, dass zur Bestimmung des vom Differenzdruck abhängigen Spannungszustandes der Folienumhüllung ein Sensor (4) fest mit der Folienumhüllung (1) des VIP verbunden ist. 3. Vacuum insulation panel (VIP) according to claims 1 and 2, characterized in that a sensor ( 4 ) is fixedly connected to the film covering ( 1 ) of the VIP to determine the voltage state of the film covering dependent on the differential pressure. 4. Vakuum-Isolationspaneel (VIP) nach den Ansprüchen 1 bis 3 dadurch gekennzeichnet, dass es sich bei dem Sensor (4) um einen Dehn-Meß- Streifen handelt. 4. Vacuum insulation panel (VIP) according to claims 1 to 3, characterized in that the sensor ( 4 ) is a strain gauge. 5. Vakuum-Isolationspaneel (VIP) nach den Ansprüchen 1 bis 3 dadurch gekennzeichnet, dass es sich bei dem Sensor (4) um eine Piezofolie aus hochpolarisiertem PVC handelt. 5. Vacuum insulation panel (VIP) according to claims 1 to 3, characterized in that the sensor ( 4 ) is a piezo film made of highly polarized PVC. 6. Vakuum-Isolationspaneel (VIP) nach den Ansprüchen 1 bis 5 dadurch gekennzeichnet, dass der Sensor (4) flächig mit einem elastischen Kleber auf die Umhüllung (1) des VIP geklebt wird. 6. Vacuum insulation panel (VIP) according to claims 1 to 5, characterized in that the sensor ( 4 ) is glued flat with an elastic adhesive to the envelope ( 1 ) of the VIP. 7. Vakuum-Isolationspaneel (VIP) nach den Ansprüchen 1 bis 5 dadurch gekennzeichnet, dass der Sensor (4) vollflächig an der Folienumhüllung (1) anliegende und am Rand des Sensors (4) umlaufend mit der Folienumhüllung (1) verschweißt wird. 7. Vacuum insulation panel (VIP) according to claims 1 to 5, characterized in that the sensor ( 4 ) over the entire surface of the film covering ( 1 ) and at the edge of the sensor ( 4 ) is welded all round to the film covering ( 1 ). 8. Vakuum-Isolationspaneel (VIP) nach den Ansprüchen 1 bis 5 dadurch gekennzeichnet, dass der Sensor (4) zur Druckmessung galvanisch mit einer entsprechenden Messbrückenschaltung (5) und einem Anzeigegerät verbunden wird. 8. Vacuum insulation panel (VIP) according to claims 1 to 5, characterized in that the sensor ( 4 ) for pressure measurement is galvanically connected to a corresponding measuring bridge circuit ( 5 ) and a display device. 9. Vakuum-Isolationspaneel (VIP) nach den Ansprüchen 1 bis 5 dadurch gekennzeichnet, dass der Sensor (4) dauerhaft und galvanisch mit einem Transponder (6) verbunden ist. 9. Vacuum insulation panel (VIP) according to claims 1 to 5, characterized in that the sensor ( 4 ) is permanently and galvanically connected to a transponder ( 6 ). 10. Vakuum-Isolationspaneel (VIP) nach den Ansprüchen 1 bis 5 und 9 dadurch gekennzeichnet, dass der Transponder (6) mindestens eine Messbrückenschaltung, einen Messwertspeicher und eine Antenne zur induktiven Kopplung mit einem externen Messgerät beinhaltet. 10. Vacuum insulation panel (VIP) according to claims 1 to 5 and 9, characterized in that the transponder ( 6 ) contains at least one measuring bridge circuit, a measured value memory and an antenna for inductive coupling with an external measuring device.
DE10159518A 2001-12-04 2001-12-04 Vacuum insulation panel with an integrated pressure monitoring system comprises a foil cover which also serves as a measuring membrane Withdrawn DE10159518A1 (en)

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Application Number Priority Date Filing Date Title
DE10159518A DE10159518A1 (en) 2001-12-04 2001-12-04 Vacuum insulation panel with an integrated pressure monitoring system comprises a foil cover which also serves as a measuring membrane

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004010695U1 (en) * 2004-07-07 2005-08-18 Porextherm-Dämmstoffe Gmbh Vacuum insulation panels, to be locked together to form an insulation board, have a gas-tight shrouding of a thermal insulation material around the core held by an adhesive bond
DE102004014248A1 (en) * 2004-03-24 2005-10-13 Gencer, Erhan, Dr. Vacuum insulation panel comprising cover plates, grid structures and distance pieces encased in a plastic cover is joined to a vacuum pump and a pressure regulator, and is maintained at a specified internal pressure
DE102006042426A1 (en) * 2006-09-09 2008-03-27 Va-Q-Tec Ag Non-contact verification of adequate vacuum in insulation panels, employs radio frequency transponder and pressure switch in panel, with external detection instrument
DE202009003677U1 (en) 2009-03-17 2010-04-29 Porextherm-Dämmstoffe Gmbh Indicator for detecting the ingress of air and / or moisture into a vacuum, pressure or protective gas packaging
NL2007415C2 (en) * 2011-09-14 2013-03-18 Iq Prof B V BUILDING ELEMENT.
WO2013116843A1 (en) * 2012-02-03 2013-08-08 Caralon Global Limited Vacuum insulation panel quality control systems and methods for using same
CN103575459A (en) * 2012-08-08 2014-02-12 苏州维艾普新材料有限公司 Device for measuring internal pressure of vacuum insulating panel and testing method thereof
EP2614194B1 (en) * 2010-09-10 2015-06-17 BSH Hausgeräte GmbH Refrigerator with vacuum body
WO2016062894A1 (en) 2014-10-24 2016-04-28 Thermosecure Medical Equipment Gmbh Thermally insulated transport container comprising thermal insulation resting against the walls, and wall structure of a container of said type
WO2017167697A1 (en) 2016-03-29 2017-10-05 Basf Se Transport container with remote surveillance capability
WO2018137897A1 (en) * 2017-01-25 2018-08-02 Va-Q-Tec Ag Method for preparing a transport container
CN108488547A (en) * 2018-06-07 2018-09-04 苏州宏久航空防热材料科技有限公司 A kind of compound insulation structure of intelligence temperature-controllable
DE102018109629A1 (en) 2018-04-23 2019-10-24 Va-Q-Tec Ag Method for checking the functioning of a vacuum insulation panel
EP3978890A1 (en) 2020-10-01 2022-04-06 König Metall GmbH & Co. KG Device for monitoring a vacuum

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004014248A1 (en) * 2004-03-24 2005-10-13 Gencer, Erhan, Dr. Vacuum insulation panel comprising cover plates, grid structures and distance pieces encased in a plastic cover is joined to a vacuum pump and a pressure regulator, and is maintained at a specified internal pressure
DE202004010695U1 (en) * 2004-07-07 2005-08-18 Porextherm-Dämmstoffe Gmbh Vacuum insulation panels, to be locked together to form an insulation board, have a gas-tight shrouding of a thermal insulation material around the core held by an adhesive bond
DE102006042426A1 (en) * 2006-09-09 2008-03-27 Va-Q-Tec Ag Non-contact verification of adequate vacuum in insulation panels, employs radio frequency transponder and pressure switch in panel, with external detection instrument
DE102006042426B4 (en) * 2006-09-09 2011-09-15 Va-Q-Tec Ag Device for non-contact control of vacuum insulation panels by means of RFID technology
DE202009003677U1 (en) 2009-03-17 2010-04-29 Porextherm-Dämmstoffe Gmbh Indicator for detecting the ingress of air and / or moisture into a vacuum, pressure or protective gas packaging
WO2010105811A1 (en) 2009-03-17 2010-09-23 Porextherm-Dämmstoffe Gmbh Indicator for detecting penetration of air and/or dampness into a vacuum, pressure or modified atmosphere packaging
EP2614194B1 (en) * 2010-09-10 2015-06-17 BSH Hausgeräte GmbH Refrigerator with vacuum body
NL2007415C2 (en) * 2011-09-14 2013-03-18 Iq Prof B V BUILDING ELEMENT.
WO2013116843A1 (en) * 2012-02-03 2013-08-08 Caralon Global Limited Vacuum insulation panel quality control systems and methods for using same
US8994555B2 (en) 2012-02-03 2015-03-31 Caralon Global Limited Vacuum insulation panel quality control systems and methods for using same
CN103575459A (en) * 2012-08-08 2014-02-12 苏州维艾普新材料有限公司 Device for measuring internal pressure of vacuum insulating panel and testing method thereof
CN103575459B (en) * 2012-08-08 2016-07-13 苏州维艾普新材料股份有限公司 The measurement apparatus of a kind of vacuum heat-insulating plate internal pressure and method of testing thereof
WO2016062894A1 (en) 2014-10-24 2016-04-28 Thermosecure Medical Equipment Gmbh Thermally insulated transport container comprising thermal insulation resting against the walls, and wall structure of a container of said type
DE102015113693A1 (en) 2014-10-24 2016-04-28 Thermosecure Medical Equipment Gmbh Thermally insulated transport container with heat insulation applied to the walls and wall construction of such a container
US10883759B2 (en) 2016-03-29 2021-01-05 Basf Se Transport container with remote surveillance capability
WO2017167697A1 (en) 2016-03-29 2017-10-05 Basf Se Transport container with remote surveillance capability
WO2018137897A1 (en) * 2017-01-25 2018-08-02 Va-Q-Tec Ag Method for preparing a transport container
US11204195B2 (en) 2017-01-25 2021-12-21 Va-Q-Tec Ag Method for preparing a transport container
DE102018109629A1 (en) 2018-04-23 2019-10-24 Va-Q-Tec Ag Method for checking the functioning of a vacuum insulation panel
WO2019206519A1 (en) 2018-04-23 2019-10-31 Va-Q-Tec Ag Method for checking the operational reliability of a vacuum insulation panel
DE102018109629B4 (en) 2018-04-23 2023-05-17 Va-Q-Tec Ag Procedure for checking the functionality of a vacuum insulation panel
CN108488547A (en) * 2018-06-07 2018-09-04 苏州宏久航空防热材料科技有限公司 A kind of compound insulation structure of intelligence temperature-controllable
EP3978890A1 (en) 2020-10-01 2022-04-06 König Metall GmbH & Co. KG Device for monitoring a vacuum

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