EP2965337A2 - Plate stack for a cooling device in installation devices - Google Patents

Plate stack for a cooling device in installation devices

Info

Publication number
EP2965337A2
EP2965337A2 EP14709914.7A EP14709914A EP2965337A2 EP 2965337 A2 EP2965337 A2 EP 2965337A2 EP 14709914 A EP14709914 A EP 14709914A EP 2965337 A2 EP2965337 A2 EP 2965337A2
Authority
EP
European Patent Office
Prior art keywords
plate
plates
stack according
plate stack
spacer elements
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.)
Granted
Application number
EP14709914.7A
Other languages
German (de)
French (fr)
Other versions
EP2965337B1 (en
Inventor
Albert Zacharias
Christian Ruempler
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.)
Eaton Electrical IP GmbH and Co KG
Original Assignee
Eaton Electrical IP GmbH and Co KG
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 Eaton Electrical IP GmbH and Co KG filed Critical Eaton Electrical IP GmbH and Co KG
Publication of EP2965337A2 publication Critical patent/EP2965337A2/en
Application granted granted Critical
Publication of EP2965337B1 publication Critical patent/EP2965337B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H33/10—Metal parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/342—Venting arrangements for arc chutes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/12—Ventilating; Cooling; Heating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/36—Metal parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/52—Cooling of switch parts

Definitions

  • the invention relates to a stack of plates for a cooling device in an electrical installation device.
  • the plates i.a. Fixed on special side walls or enclosures and kept at a distance and also at the same time electrically insulated against each other.
  • the object of the invention to provide cooling plates in a device to installation devices for cooling of exhaust gases, which are designed uniformly and which can be stacked with a narrow defined distance.
  • the solution of the problem is formulated in the main claim. Further advantageous embodiments are specified in subclaims.
  • the essence of the invention is that the plate stack consists of identical plates made of a material of high thermal conductivity, wherein the plates are each provided with the plate spacing corresponding spacers, and wherein the plates are arranged in the stack so that their orientation changes sequentially.
  • the plate stack is arranged in a switching gas cooling device of an installation device.
  • spacer elements are provided on the plates, said plate and spacers are integrally formed.
  • a raised spacer element is created as a bulge by plastic deformation on one side and a depression on the opposite side.
  • the invention assumes that the deep stamping process is performed on only one side of the material, so that bulges only occur on one side of the materials. If the plates were stacked in identical orientation, the raised embossments of one plate would dip into the recesses of the next plate.
  • cooling plates made of good thermal conductivity ceramic can be used, in which, however, only spacers and on the
  • the description of the invention therefore relates primarily to metallic cooling plates.
  • Panels can be stacked on top of each other with uniformly close spacing.
  • the parallel cooling plates are arranged at a close distance in the tenth of a millimeter range. Compliance with this narrow distance is essential to the function crucial for cooling and pressure gradient. Therefore, in the arrangement and fixation of the cooling plates, a design is chosen that allows tight tolerances and is suitable for mass production. Furthermore, the parallel cooling plates should be constructed so that an adequate seal against currents is present, so that possible no
  • the plate stack assembly according to the invention is designed such that position and
  • the change in orientation in the disk stack can be done by
  • the plates usually have a rectangular format. In the case in which the plates are formed square, there is correspondingly another consideration of
  • the plate stack is part of a cooling device and requires for its function both a holding device (frame / housing), which holds the plates together, as well as an adequate seal against lateral, the plate stack passing flows.
  • the plates may preferably be formed such that a window formed in the cooling device is designed to be smooth on the inside as a frame for the stack of plates - ie without insertion grooves.
  • An inventively designed plate stack forms by itself a good cohesion and provides the necessary seal against a smooth inner wall of the window.
  • the plates can be made of steel, copper or highly thermally conductive ceramics.
  • the spacer elements are formed as a deep embossing.
  • the spacers are integral with the plate and formed in shape as a knob, as a cone, as a truncated cone, as a cylinder or as a web.
  • the spacers should be formed only on one surface of a plate.
  • the spacers may be formed in the surface of the plate and / or on the edge of the plate.
  • Fig. 1 A plates with 3 nubs at the edges, rotation in the plane;
  • Fig. 1B variant - plate with additional knob in the middle
  • Fig. IC variant - not round knob shape, rotation in the plane
  • Fig. 1D variant - folded out of the plane plates
  • Fig. IE laterally edge webs for sealing
  • Fig. 2 sectional view of a plate stack in a cooling device.
  • Figures 1 A to IE show different variants of the plate formation.
  • Figure 1A For a stack of plates in a cooling device, at least three spacers are required ( Figure 1A) to allow the plates to be clearly defined one above the other at a predetermined distance.
  • the distance of the plates one above the other is determined by the height of the spacer elements, which is achieved by the punching or embossing depth.
  • the spacers 30, 31 are preferably on the
  • Spacers are also provided at a greater distance to the side edges.
  • Fig. 1A shows panels with three nubs 30 at the edges, Fig. 1B showing a second variant having an additional nub in the middle.
  • a third variant is shown, in which the spacer elements 32 have a non-circular shape.
  • the shape of the spacer elements is not limited to round elements, but in principle may be arbitrary.
  • the elements can also be placed directly on the plate edge, as shown by way of example in FIGS. 1C and 1D.
  • Figures 1A and 1C show an asymmetrical arrangement of the spacer elements, so that when the plates are rotated by 180 ° about a vertical axis (perpendicular to the plate plane) the spacer elements of two plates lying over one another do not come to lie above each other.
  • Fig. 1D another type of arrangement is shown.
  • the desired result is achieved by folding through 180 ° of the plates about an axis lying in the plate surface.
  • the stamping or embossing technique can also be used for the production of lateral seals
  • sealing elements 32 are used for the flow-through plate stack.
  • the impressions or punches introduced at the edge must mesh with each other for sealing purposes and must therefore be arranged symmetrically.
  • All cooling plates 15 have the same thickness 16. Preferably between 500 to 1000 ⁇ or for special applications in a narrower range of 700 to 900 ⁇ on average 800 ⁇
  • FIG. 2 is a sectional view with the cooling device 10 cut perpendicularly in the middle (with reference numeral 12 as the cutting plane).
  • reference numeral 12 As the cutting plane.
  • the cooling device 10 cut perpendicularly in the middle (with reference numeral 12 as the cutting plane).
  • the outlet for the switching gases In the front of the drawing is the outlet for the switching gases; the rear area of the cooling device is directed to the switching chamber of the installation device.
  • the cooling plates 15 are transverse to the flow direction 20 and form the cold plate stack.
  • Twenty-two slots 17 are formed between the cooling plates.
  • the space between the cooling plates are slots 17. These have a slot width 18, which is determined by the height of the spacers.
  • the slot width 19 corresponds to the width of the window in the cooling device.
  • the height of the spacers can each be graded according to expected gas mass flow: 100 to 500 ⁇ , or 250 to 400 ⁇ , or even narrower 200 to 300 ⁇ .
  • the total cross section of the passage openings is essentially determined by and dependent on the switching power or nominal current of the
  • the overall cross-section of the passage openings of the design illustrated in Fig. 2 has an order of magnitude of 300 mm 2 , if as slot width (18) 0.2 mm, as a width (19) 20 mm and the number of plates is based on 22.
  • the switching gas cooling device with the plate stack according to the invention can be applied to all electromechanical switching devices which produce a significant blow-out.

Landscapes

  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

The invention relates to a plate stack in a cooling device (10) for hot gases generated in electric installation devices, preferably in low-voltage power switches. The plate stack is arranged in the flow path (20) of the hot switching gases into a window (13), said plate stack consisting of identical plates (15) made of a material with a high heat conductivity. Each of the plates (15) is provided with spacer elements (30) which correspond to the spacing of the plates, and the plates are arranged in the stack such that the orientation of the plates changes one after the other.

Description

PLATTENSTAPEL FÜR KÜHLVORRICHTUNG IN INSTALLATIONSGERÄTEN Die Erfindung betrifft einen Plattenstapel für eine Kühlvorrichtung in einem elektrischen Installationsgerät.  PLATE STACK FOR COOLING DEVICE IN INSTALLATION DEVICES The invention relates to a stack of plates for a cooling device in an electrical installation device.
In der Elektrotechnik sind parallele Plattenanordnungen mit definiertem Abstand In electrical engineering are parallel plate arrangements with a defined distance
typischerweise als Löschblechpakete bekannt. Hierbei werden die Platten (Löschbleche) i.a. über spezielle Seitenwände oder Einfassungen fixiert und auf Abstand gehalten und auch dabei gleichzeitig gegeneinander elektrisch isoliert. typically known as splitter stacks. Here, the plates (quenching plates) i.a. Fixed on special side walls or enclosures and kept at a distance and also at the same time electrically insulated against each other.
Es ist eine Kühlvorrichtung in Niederspannungsleistungsschaltern bekannt, bei der ein engmaschiges metallisches Netz oder Gitter eingesetzt wird (EP 0817223 Bl). It is a cooling device in low-voltage circuit breakers known in which a close-meshed metallic mesh or grid is used (EP 0817223 Bl).
Auch andere Erfindungen setzen sich mit der Kühlung der Ausblasung auseinander; Other inventions deal with the cooling of the blow-out;
beispielsweise in US 7488915 B2 oder in DE 102010034264 B3. Bei diesen Lösungen wird jedoch die Strömung mehrfach umgelenkt. Nachteile dieser Anordnungen sind, dass ein Druckaufbau durch die Strömungsumlenkung entlang der Kühlvorrichtung entsteht, welcher nachteilig auf das Schalt verhalten zurückwirkt. Will man diese Rückwirkung vermeiden, muss eine Querschnittsvergrößerung vorgenommen werden. Durch die komplexe for example in US 7488915 B2 or in DE 102010034264 B3. In these solutions, however, the flow is deflected several times. Disadvantages of these arrangements are that a pressure build-up is created by the flow deflection along the cooling device, which adversely affects the switching behavior. If you want to avoid this reaction, a cross-sectional enlargement must be made. Through the complex
Strömungsführung (u.a. viele Umlenkungen) und den filigranen Aufbau kann es bei den engmaschigen Kühlgeflechten (EP 0817223 AI) zu Verstopfungen der Strömungskanäle durch Partikel in der Ausblasung und zu Schädigungen des Geflechts kommen. Flow guidance (inter alia, many deflections) and the filigree structure can occur in the close-meshed cooling braids (EP 0817223 AI) to blockages of the flow channels by particles in the blowout and damage to the braid.
Es ist die Aufgabe der Erfindung Kühlplatten in einer Vorrichtung an Installationsgeräten zum Kühlen von Ausblasgasen anzugeben, die einheitlich gestaltet sind und die mit engem definierten Abstand gestapelt werden können. Die Lösung der Aufgabe wird im Hauptanspruch formuliert. Weitergehende vorteilhafte Ausgestaltungen sind in Unteransprüchen angegeben. Der Kern der Erfindung besteht darin, dass der Plattenstapel aus identischen Platten aus einem Material hoher Wärmeleitfähigkeit besteht, wobei die Platten jeweils mit dem Plattenabstand entsprechenden Abstandselementen versehen sind, und wobei die Platten im Stapel derart angeordnet sind, dass ihre Orientierung aufeinanderfolgend wechselt. Der Plattenstapel ist in einer Schaltgas-Kühlvorrichtung eines Installationsgeräts angeordnet. It is the object of the invention to provide cooling plates in a device to installation devices for cooling of exhaust gases, which are designed uniformly and which can be stacked with a narrow defined distance. The solution of the problem is formulated in the main claim. Further advantageous embodiments are specified in subclaims. The essence of the invention is that the plate stack consists of identical plates made of a material of high thermal conductivity, wherein the plates are each provided with the plate spacing corresponding spacers, and wherein the plates are arranged in the stack so that their orientation changes sequentially. The plate stack is arranged in a switching gas cooling device of an installation device.
Zum Aufbau der Plattenanordnung sind an den Platten Abstandselemente vorhanden, wobei Platte und Abstandselemente einstückig ausgebildet sind. For the construction of the plate assembly spacer elements are provided on the plates, said plate and spacers are integrally formed.
Es sollen metallische Platten eingesetzt werden, an denen Abstandselemente durch Tiefprägen erzeugt worden sind. It should be used metallic plates on which spacers have been produced by stamping.
Beim Tiefprägeprozess an dünnen Werkstoffen entsteht durch plastische Verformung auf einer Seite als Aufwölbung ein erhabenes Abstandselement und auf der gegenüberliegenden Seite eine Vertiefung. Die Erfindung geht davon aus, dass der Tiefprägeprozess nur auf einer Seite des Werkstoffs vorgenommen wird, so dass Aufwölbungen nur auf einer Seite der Werkstoffe auftreten. Würden die Platten in identischer Orientierung gestapelt, so tauchen die erhabenen Prägungen einer Platte in die Vertiefungen der nächsten Platte ein. In the case of the deep stamping process on thin materials, a raised spacer element is created as a bulge by plastic deformation on one side and a depression on the opposite side. The invention assumes that the deep stamping process is performed on only one side of the material, so that bulges only occur on one side of the materials. If the plates were stacked in identical orientation, the raised embossments of one plate would dip into the recesses of the next plate.
Als erfindungsgemäße Alternative können Kühlplatten aus gut wärmeleitfähiger Keramik eingesetzt werden, bei denen allerdings nur Abstandselemente und auf der As an alternative of the invention, cooling plates made of good thermal conductivity ceramic can be used, in which, however, only spacers and on the
gegenüberliegenden Seite keine Vertiefungen ausgebildet sind. opposite side no depressions are formed.
Die Beschreibung de Erfindung bezieht sich daher vor allem auf metallische Kühlplatten. The description of the invention therefore relates primarily to metallic cooling plates.
Mit der Erfindung können folgende Vorteile erreicht werden With the invention, the following advantages can be achieved
• Platten sind mit einheitlichem engen Plattenabstand übereinander stapelbar.  • Panels can be stacked on top of each other with uniformly close spacing.
• Einhaltung eines eng definierten Plattenabstands.  • Compliance with a narrow plate spacing.
• Minimaler Druckaufbau in der Schaltkammer, bei optimaler Abstimmung von  • Minimal pressure build-up in the switching chamber, with optimum coordination of
Plattendicke und Plattenabstand.  Plate thickness and plate spacing.
• Serientauglicher Lösungsansatz zur Umsetzung.  • Production-ready solution for implementation.
Die parallel liegenden Kühlplatten sind in einem engen Abstand im Zehntel Millimeter Bereich angeordnet. Die Einhaltung dieses engen Abstands ist für die Funktion, insbesondere für Kühlung und Druckgefälle entscheidend. Daher ist bei Anordnung und Fixierung der Kühlplatten eine Konstruktion gewählt, die enge Toleranzen erlaubt und serientauglich ist. Des Weiteren sollen die parallel liegenden Kühlplatten so aufgebaut sein, dass eine ausreichende Abdichtung gegen Strömungen vorhanden ist, so dass möglich keine The parallel cooling plates are arranged at a close distance in the tenth of a millimeter range. Compliance with this narrow distance is essential to the function crucial for cooling and pressure gradient. Therefore, in the arrangement and fixation of the cooling plates, a design is chosen that allows tight tolerances and is suitable for mass production. Furthermore, the parallel cooling plates should be constructed so that an adequate seal against currents is present, so that possible no
Ausblasgase an der Kühlvorrichtung vorbei ungekühlt das Schaltgerät verlassen. Blow-off gases leave the cooling device without refrigeration the switching device.
Die erfindungsgemäße Plattenstapelanordnung ist derart ausgebildet, dass Lage und The plate stack assembly according to the invention is designed such that position and
Dimension toleranzunempfindlich gestaltet sind. Vorteilhaft ist, dass eine gegenseitige Isolierung der Platten nicht benötigt wird. Damit die durch Tiefprägen hergestellten Abstandselemente auch tatsächlich als Dimension tolerance insensitive are designed. It is advantageous that a mutual insulation of the plates is not needed. Thus, the spacer elements produced by deep stamping actually as
Abstandselemente dienen können, muss die Anordnung der Abstandselemente aufeinander folgender Platten unterschiedlich ausgeführt sein. Dies könnte im Prinzip durch mindestens zwei verschiedene Plattenausführungen mit unterschiedlicher Anordnung der  Serve spacer elements, the arrangement of the spacers of successive plates must be made different. This could be done in principle by at least two different plate designs with different arrangement of
Abstandselemente erreicht werden. Erfindungsgemäß wird jedoch nur eine identische Ausführung verwendet, wobei die Platten im Stapel derart angeordnet sind, dass ihre Orientierung aufeinanderfolgend wechselt. Distance elements are achieved. According to the invention, however, only an identical embodiment is used, wherein the plates are arranged in the stack so that their orientation changes sequentially.
Der Wechsel in der Orientierung im Plattenstapel kann dadurch erfolgen, dass The change in orientation in the disk stack can be done by
aufeinanderfolgende Platten jeweils in einer zur Plattenfläche parallelen Ebene um 180° zueinander gedreht bzw. um eine Kante der Platten um 180° geklappt angeordnet sind. Dies wird durch eine asymmetrische Anordnung der Abstandselemente auf den Platten ermöglicht (Drehunsymmetrie bezüglich 180°). successive plates each rotated in a plane parallel to the plate surface by 180 ° to each other or arranged folded around an edge of the plates by 180 °. This is made possible by an asymmetrical arrangement of the spacer elements on the plates (rotational asymmetry with respect to 180 °).
Die Platten haben in der Regel ein rechteckiges Format. Im Falle, in dem die Platten quadratisch ausgebildet sind, ergibt sich entsprechend eine andere Betrachtung der The plates usually have a rectangular format. In the case in which the plates are formed square, there is correspondingly another consideration of
Drehunsymmetrie, bzw der Anordnung der Abstandselemente. Drehunsymmetrie, or the arrangement of the spacer elements.
Der Plattenstapel ist Teil einer Kühlvorrichtung und erfordert für seine Funktion sowohl eine Haltevorrichtung (Rahmen/Gehäuse), die die Platten zusammenhält, als auch eine ausreichende Abdichtung gegen seitliche, am Plattenstapel vorbeiführende Strömungen. Die Platten können vorzugsweise derart ausgebildet sein, dass ein in der Kühlvorrichtung ausgebildetes Fenster als Rahmen für den Plattenstapel innenseitig glatt ausgebildet ist - also ohne Einführrnuten. Ein erfindungsgemäß ausgebildeter Plattenstapel bildet von sich aus einen guten Zusammenhalt und liefert die nötige Abdichtung gegen eine glatte Innenwand des Fensters. The plate stack is part of a cooling device and requires for its function both a holding device (frame / housing), which holds the plates together, as well as an adequate seal against lateral, the plate stack passing flows. The plates may preferably be formed such that a window formed in the cooling device is designed to be smooth on the inside as a frame for the stack of plates - ie without insertion grooves. An inventively designed plate stack forms by itself a good cohesion and provides the necessary seal against a smooth inner wall of the window.
Vorteilhafte Ausgestaltungen sind durch folgende Merkmale charakterisiert, wobei die Merkmale einzeln oder gemeinsam - soweit zutreffend - ausgebildet sein können. Advantageous embodiments are characterized by the following features, wherein the features can be formed individually or jointly - if applicable.
Die Platten können aus Stahl, Kupfer oder aus hoch wärmeleitfähiger Keramik bestehen. The plates can be made of steel, copper or highly thermally conductive ceramics.
In Platten aus metallischem Werkstoff sind die Abstandselemente (und Dichtelemente) als Tiefprägung ausgebildet. In plates of metallic material, the spacer elements (and sealing elements) are formed as a deep embossing.
Die Abstandselemente sind einstückig mit der Platte und in ihrer Form als Noppe, als Kegel, als Kegelstumpf, als Zylinder oder als Steg ausgebildet. The spacers are integral with the plate and formed in shape as a knob, as a cone, as a truncated cone, as a cylinder or as a web.
Die Abstandselemente sollen nur auf einer Fläche einer Platte ausgebildet sein. The spacers should be formed only on one surface of a plate.
Die Abstandselemente können in der Fläche der Platte und/oder am Rand der Platte ausgebildet sein. The spacers may be formed in the surface of the plate and / or on the edge of the plate.
Unsymmetrische Anordnung der Abstandselemente auf der Plattenfläche bezüglich Unsymmetrical arrangement of the spacers on the plate surface with respect to
Drehsymmetrie von 180° um eine auf der Plattenfläche stehenden Drehachse. 180 ° rotational symmetry about a rotation axis standing on the plate surface.
Unsymmetrische Anordnung der Abstandselemente auf der Plattenflächen bezüglich Unsymmetrical arrangement of the spacers on the plate surfaces with respect to
Drehsymmetrie von 180° um eine parallel zu einer Kante der Platte stehende Drehachse. Am Rand einer Platte können einstückig mit der Platte Dichtelemente ausgebildet sein. Die Höhe der Dichtelemente sollte größer ausgebildet sein als die Größe des Plattenabstands. 180 ° rotational symmetry about a rotation axis parallel to an edge of the plate. At the edge of a plate can be integrally formed with the plate sealing elements. The height of the sealing elements should be made larger than the size of the plate spacing.
Dimensionen der Platten in Dicke, Breite und Länge (und Anzahl) sind abhängig von der gewünschten Kühlleistung und damit abhängig von der Geräteklasse des Installationsgeräts ausgebildet. Dimensions of plates in thickness, width and length (and number) are dependent on the desired cooling capacity and thus formed depending on the device class of the installation device.
Die Erfindung und vorteilhafte Ausgestaltungen sind in Figuren dargestellt, welche im Einzelnen zeigen. Fig. 1 A: Platten mit 3 Noppen an den Rändern, Drehung in der Ebene; The invention and advantageous embodiments are shown in figures, which show in detail. Fig. 1 A: plates with 3 nubs at the edges, rotation in the plane;
Fig. 1B: Variante - Platte mit zusätzlicher Noppe in der Mitte; Fig. 1B: variant - plate with additional knob in the middle;
Fig. IC: Variante - nicht runde Noppenform, Drehung in der Ebene; Fig. IC: variant - not round knob shape, rotation in the plane;
Fig. 1D: Variante - aus der Ebene geklappte Platten, Fig. 1D: variant - folded out of the plane plates,
Fig. IE: seitlich Randstege zur Abdichtung und Fig. IE: laterally edge webs for sealing and
Fig. 2: Schnittbild eines Plattenstapels in einer Kühlvorrichtung.  Fig. 2: sectional view of a plate stack in a cooling device.
Die Figuren 1 A bis IE zeigen verschiedene Varianten der Plattenausbildung. Für einen Plattenstapel in einer Kühlvorrichtung sind mindesten drei Abstandselemente erforderlich (Fig. 1A), damit die Platten eindeutig definiert mit vorgegebenem Abstand übereinander zu liegen kommen. Der Abstand der Platten übereinander (Schlitzweite 18 im Fenster 13 der Kühlvorrichtung) wird durch die Höhe der Abstandselemente bestimmt, was durch die Stanzoder Prägetiefe erzielt wird. Die Abstandselemente 30, 31 sind vorzugsweise an den Figures 1 A to IE show different variants of the plate formation. For a stack of plates in a cooling device, at least three spacers are required (Figure 1A) to allow the plates to be clearly defined one above the other at a predetermined distance. The distance of the plates one above the other (slot width 18 in the window 13 of the cooling device) is determined by the height of the spacer elements, which is achieved by the punching or embossing depth. The spacers 30, 31 are preferably on the
Seitenrändern oder in deren Nähe angeordnet, damit die Schaltgasströmung 20 möglichst wenig beeinflusst wird. Wird die Einhaltung des Plattenabstands durch eine größere Side edges or in the vicinity arranged so that the switching gas flow 20 is influenced as little as possible. If the compliance of the plate spacing by a larger
Ausdehnung der Platten aufgrund von Durchbiegungen schwierig, können weitere Expansion of the plates due to deflections difficult, more can
Abstandselemente auch in größerem Abstand zu den Seitenrändern vorgesehen werden. Spacers are also provided at a greater distance to the side edges.
Die Fig. 1A zeigt Platten mit drei Noppen 30 an den Rändern, wobei die Fig. 1B eine zweite Variante darstellt, welche einen zusätzlichen Noppen in der Mitte aufweist. Fig. 1A shows panels with three nubs 30 at the edges, Fig. 1B showing a second variant having an additional nub in the middle.
In der Fig. IC ist eine dritte Variante dargestellt, in der die Abstandselemente 32 eine nichtrunde Form haben. Das heißt, dass die Form der Abstandselemente nicht auf runde Elemente beschränkt ist, sondern im Prinzip beliebig sein kann. Zudem können die Elemente auch direkt an den Plattenrand gelegt sein, wie beispielhaft in Fig. IC und 1D dargestellt. DieIn the Fig. IC a third variant is shown, in which the spacer elements 32 have a non-circular shape. This means that the shape of the spacer elements is not limited to round elements, but in principle may be arbitrary. In addition, the elements can also be placed directly on the plate edge, as shown by way of example in FIGS. 1C and 1D. The
Figuren 1A und IC zeigen eine unsymmetrische Anordnung der Abstandselemente, so dass bei Drehung der Platten um 180° um eine Hochachse (senkrecht auf Plattenebene) die Abstandselemente zweier über einander liegender Platten nicht über einander zu liegen kommen. Figures 1A and 1C show an asymmetrical arrangement of the spacer elements, so that when the plates are rotated by 180 ° about a vertical axis (perpendicular to the plate plane) the spacer elements of two plates lying over one another do not come to lie above each other.
In Fig. 1D ist eine andere Art der Anordnung gezeigt. Hier wird durch Klappen um 180° der Platten um eine in der Plattenfläche liegende Achse das gewünschte Ergebnis erreicht. Die Stanz- oder Prägetechnik kann auch zur Herstellung seitlicher AbdichtungenIn Fig. 1D, another type of arrangement is shown. Here, the desired result is achieved by folding through 180 ° of the plates about an axis lying in the plate surface. The stamping or embossing technique can also be used for the production of lateral seals
(Dichtelemente 32) für den durchströmten Plattenstapel verwendet werden. Dazu wird vorgeschlagen, seitlich an den Platten weitere Prägungen oder Stanzungen vorzunehmen, wie in der Fig. IE beispielhaft dargestellt. Im Gegensatz zu den Abstandselementen müssen die am Rand eingebrachten Prägungen oder Stanzungen zur Abdichtung ineinander greifen und sind daher symmetrisch anzuordnen. Des Weiteren ist für die Dichtwirkung hilfreich, wenn die seitlich angeordneten Prägungen tiefer ausfallen als die Höhe 18 der Abstandselemente. (Sealing elements 32) are used for the flow-through plate stack. For this purpose, it is proposed to make further embossing or punching on the side of the plates, as shown by way of example in FIG. In contrast to the spacer elements, the impressions or punches introduced at the edge must mesh with each other for sealing purposes and must therefore be arranged symmetrically. Furthermore, it is helpful for the sealing effect if the laterally arranged embossments are lower than the height 18 of the spacer elements.
Alle Kühlplatten 15 haben dieselbe Dicke 16. Vorzugsweise zwischen 500 bis 1000 μιη oder für besondere Anwendungsfälle auch in einem schmaleren Bereich von 700 bis 900 μιη im Mittel 800 μιη All cooling plates 15 have the same thickness 16. Preferably between 500 to 1000 μιη or for special applications in a narrower range of 700 to 900 μιη on average 800 μιη
Figur 2 ist eine Schnittdarstellung, wobei die Kühlvorrichtung 10 senkrecht in der Mitte geschnitten ist (mit Bezugszeichen 12 als Schnittebene). Vorn in der Zeichnung befindet sich die Austrittsöffnung für die Schaltgase; der hintere Bereich der Kühlvorrichtung ist zur Schaltkammer des Installationsgeräts gerichtet. Figure 2 is a sectional view with the cooling device 10 cut perpendicularly in the middle (with reference numeral 12 as the cutting plane). In the front of the drawing is the outlet for the switching gases; the rear area of the cooling device is directed to the switching chamber of the installation device.
Die Kühlplatten 15 liegen quer zur Strömungsrichtung 20 und bilden den Kühlplattenstapel. In der zeichnerisch dargestellten Ausführung nach Fig. 2 befinden sich dreiundzwanzig Kühlplatten, die zusammen mit dem Rahmen 14 nach Masse, Volumen und Material die Wärmekapazität der Kühlvorrichtung bilden. Zwischen den Kühlplatten sind zweiundzwanzig Schlitze 17 ausgebildet. The cooling plates 15 are transverse to the flow direction 20 and form the cold plate stack. In the illustrated embodiment of FIG. 2 there are twenty-three cooling plates which, together with the frame 14, form the heat capacity of the cooling device in terms of mass, volume and material. Twenty-two slots 17 are formed between the cooling plates.
Der Zwischenraum zwischen den Kühlplatten sind Schlitze 17. Diese haben eine Schlitzweite 18, die durch die Höhe der Abstandselemente bestimmt ist. Die Schlitzbreite 19 entspricht der Breite des Fensters in der Kühlvorrichtung. Die Höhe der Abstandselemente kann jeweils nach zu erwartenden Gasmassestrom abgestuft betragen: 100 bis 500 μιη, oder 250 bis 400 μιη, oder noch enger 200 bis 300 μιη. Der Gesamtquerschnitt der Durchtrittsöffhungen ist im Wesentlichen bestimmt durch und abhängig von Schaltleistung bzw. Nennstrom des The space between the cooling plates are slots 17. These have a slot width 18, which is determined by the height of the spacers. The slot width 19 corresponds to the width of the window in the cooling device. The height of the spacers can each be graded according to expected gas mass flow: 100 to 500 μιη, or 250 to 400 μιη, or even narrower 200 to 300 μιη. The total cross section of the passage openings is essentially determined by and dependent on the switching power or nominal current of the
Installationsgeräts. Der Gesamtquerschnitt der Durchtrittsöffnungen der zeichnerisch in Fig. 2 dargestellten Ausführung hat eine Größenordnung von 300 mm2, wenn als Schlitzweite (18) 0,2 mm, als Breite (19) 20 mm und die Anzahl der Platten mit 22 zugrunde gelegt wird. Prinzipiell kann die Schaltgas-Kühlvorrichtung mit dem erfindungsgemäßen Plattenstapel auf alle elektromechanischen Schaltgeräte, die eine nennenswerte Ausblasung erzeugen, angewendet werden. Vorteilhaft bei Leistungsschaltern, Leitungsschutzschaltern und Installation device. The overall cross-section of the passage openings of the design illustrated in Fig. 2 has an order of magnitude of 300 mm 2 , if as slot width (18) 0.2 mm, as a width (19) 20 mm and the number of plates is based on 22. In principle, the switching gas cooling device with the plate stack according to the invention can be applied to all electromechanical switching devices which produce a significant blow-out. Advantageous for circuit breakers, circuit breakers and
Motorschutzschaltern im Niederspannungsbereich. Motor circuit breakers in the low voltage range.
Bezugszeichen reference numeral
12 Schnittebene 12 cutting plane
13 Fenster  13 windows
14 Rahmen  14 frames
15 Kühlplatte  15 cooling plate
16 Plattendicke  16 plate thickness
17 Schlitz  17 slot
18 Schlitzweite, Höhe Abstandselement  18 slot width, height spacer
19 Plattenbreite, Schlitzbreite  19 plate width, slit width
20 Schaltgasstrom  20 switching gas flow
30 Abstandselement (zylindrisch)  30 spacer element (cylindrical)
31 Abstandselement (Steg)  31 spacer element (bridge)
32 Dichtelement  32 sealing element

Claims

Patentansprüche claims
1. Plattenstapel, welcher in einer Schaltgas-Kühlvorrichtung eines elektrischen Schaltgeräts angeordnet ist, umfassend identische Platten (15) aus einem Material hoher A stack of plates, which is arranged in a switching gas cooling device of an electrical switching device, comprising identical plates (15) made of a material higher
Wärmeleitfähigkeit, welche mit einheitlichem Plattenabstand (18) gestapelt sind, Thermal conductivity stacked with uniform plate spacing (18),
wobei die Platten jeweils mit dem Plattenabstand (18) entsprechenden Abstandselementen (30, 31) versehen sind, und wherein the plates are each provided with the plate spacing (18) corresponding spacer elements (30, 31), and
wobei die Platten (15) im Stapel derart angeordnet sind, dass ihre Orientierung wherein the plates (15) are arranged in the stack such that their orientation
aufeinanderfolgend wechselt. successively changes.
2. Plattenstapel nach Anspruch 1, dadurch gekennzeichnet, dass die Platten (15) aus Stahl, Kupfer oder hoch wärmeleitfähiger Keramik bestehen. 2. plate stack according to claim 1, characterized in that the plates (15) made of steel, copper or highly thermally conductive ceramic.
3. Plattenstapel nach Anspruch 2, dadurch gekennzeichnet, dass in Platten (15) aus metallischem Werkstoff die Abstandselemente (30) als Tiefprägung ausgebildet sind. 3. plate stack according to claim 2, characterized in that in plates (15) made of metallic material, the spacer elements (30) are formed as a deep embossing.
4. Plattenstapel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abstandselemente (30) einstückig mit der Platte (15) und in ihrer Form als Noppe, als Kegel, als Kegelstumpf, als Zylinder (30) oder als Steg (31) ausgebildet sind. 4. plate stack according to one of the preceding claims, characterized in that the spacer elements (30) integral with the plate (15) and in its form as a knob, as a cone, as a truncated cone, as a cylinder (30) or as a web (31) are.
5. Plattenstapel nach Anspruch 4, dadurch gekennzeichnet, dass die Abstandselemente (30) nur auf einer Fläche einer Platte (15) ausgebildet sind. 5. plate stack according to claim 4, characterized in that the spacer elements (30) are formed only on one surface of a plate (15).
6. Plattenstapel nach Anspruch 5, dadurch gekennzeichnet, dass die Abstandselemente (30) in der Fläche der Platte und/oder am Rand der Platte (15) ausgebildet sind. 6. plate stack according to claim 5, characterized in that the spacer elements (30) in the surface of the plate and / or on the edge of the plate (15) are formed.
7. Plattenstapel nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass eine Anordnung der Abstandselemente (30) auf einer der Plattenflächen abweichend von einer Drehsymmetrie von 180 ° um eine auf der Plattenfläche stehenden Drehachse ausgebildet ist. 7. plate stack according to claim 5 or 6, characterized in that an arrangement of the spacer elements (30) is formed on one of the plate surfaces other than a rotational symmetry of 180 ° about an axis of rotation on the plate surface.
8. Plattenstapel nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass eine Anordnung der Abstandselemente (30) auf einer der Plattenflächen abweichend von einer Drehsymmetrie von 180 ° um eine parallel zu einer Kante der Platte (15) stehende Drehachse ausgebildet ist. 8. plate stack according to claim 5 or 6, characterized in that an arrangement of the spacer elements (30) is formed on one of the plate surfaces deviating from a rotational symmetry of 180 ° about a parallel to an edge of the plate (15) standing axis of rotation.
9. Plattenstapel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass am Rand einer Platte (15) einstückig mit der Platte Dichtelemente (32) ausgebildet sind. 9. plate stack according to one of the preceding claims, characterized in that at the edge of a plate (15) integral with the plate sealing elements (32) are formed.
10. Plattenstapel nach Anspruch 9, dadurch gekennzeichnet, dass die Dichtelemente (32) als Tiefprägung ausgebildet sind. 10. plate stack according to claim 9, characterized in that the sealing elements (32) are formed as a deep stamping.
11. Plattenstapel nach Anspruch 9 oder 10, dadurch gekennzeichnet, dass die Höhe der Dichtelemente (32) größer ausgebildet ist als die Größe des Plattenabstands (18). 11. plate stack according to claim 9 or 10, characterized in that the height of the sealing elements (32) is formed larger than the size of the plate spacing (18).
12. Plattenstapel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass Dimensionen und Anzahl der Platten einem Fenster (13) in der Schaltgas-Kühlvorrichtung angepasst ist. 12. plate stack according to one of the preceding claims, characterized in that the dimensions and number of plates is adapted to a window (13) in the switching gas cooling device.
EP14709914.7A 2013-03-06 2014-03-06 Plate stack for a cooling device in installation devices Active EP2965337B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361773289P 2013-03-06 2013-03-06
PCT/EP2014/054360 WO2014135641A2 (en) 2013-03-06 2014-03-06 Plate stack for a cooling device in installation devices

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EP2965337A2 true EP2965337A2 (en) 2016-01-13
EP2965337B1 EP2965337B1 (en) 2017-04-19

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EP (1) EP2965337B1 (en)
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Publication number Publication date
US20160035517A1 (en) 2016-02-04
EP2965337B1 (en) 2017-04-19
CN105637604B (en) 2018-11-30
US9761392B2 (en) 2017-09-12
WO2014135641A3 (en) 2016-01-14
CN105637604A (en) 2016-06-01
WO2014135641A2 (en) 2014-09-12

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