EP1442259A1 - Sliding rail for wire tubular evaporator - Google Patents

Sliding rail for wire tubular evaporator

Info

Publication number
EP1442259A1
EP1442259A1 EP02785184A EP02785184A EP1442259A1 EP 1442259 A1 EP1442259 A1 EP 1442259A1 EP 02785184 A EP02785184 A EP 02785184A EP 02785184 A EP02785184 A EP 02785184A EP 1442259 A1 EP1442259 A1 EP 1442259A1
Authority
EP
European Patent Office
Prior art keywords
evaporator
rail body
wire
rail
slide rail
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
EP02785184A
Other languages
German (de)
French (fr)
Other versions
EP1442259B1 (en
Inventor
Silvia Gerstner
Siegfried Grasy
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1442259A1 publication Critical patent/EP1442259A1/en
Application granted granted Critical
Publication of EP1442259B1 publication Critical patent/EP1442259B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/08—Parts formed wholly or mainly of plastics materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/006—General constructional features for mounting refrigerating machinery components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F25D25/024—Slidable shelves

Definitions

  • the present invention relates to a slide rail for a wire tube evaporator, an arrangement of a slide rail and such an evaporator and a refrigeration device equipped therewith.
  • a wire tube evaporator is conventionally constructed of an in-plane meandering tube for a refrigerant and a plurality of wires connected thereto at a plurality of points above or below the tube, on the one hand, for a mechanically stable, rigid assembly on the other hand, to increase the effective heat exchange surface area of the evaporator.
  • Such wire tube evaporators are used in particular in freezers, where they are each arranged in planes between two Gefriergut electern to effectively cool their contents.
  • these frozen food containers are mounted in the smallest possible vertical distance from the wire tube evaporator.
  • the frozen food containers When fully loaded, there is a possibility that the frozen food containers will bend slightly, which may result in the bottom of a frozen food container touching the underlying wire tube evaporator.
  • the frozen food container When the frozen food container is pulled out, it dribbles over the evaporator, which can lead to abrasion and premature wear.
  • this is the rear, facing away from the door of the refrigerator edge.
  • the number of parallel pipe sections within the evaporator extending between it and the opposite edge is necessarily straight.
  • the tube sections of the evaporator are evenly distributed over the width thereof, there is either no tube section extending along a center line of the evaporator from the rear wall to the door of the refrigeration device, or the distribution of the tube sections in the width direction of the evaporator is asymmetrical.
  • two slides must be arranged symmetrically, because if only one slide is located away from the center, this causes a sideways twist when pulling out and pushing in the frozen goods and thus the risk that it gets stuck.
  • the object of the present invention is to provide a slide rail for a wire tube evaporator, which can be placed exactly along a center line of the evaporator, even if no section of the refrigerant tube of the evaporator extends along this center line.
  • the laterally projecting arm allows the attachment of the slide with a basically any, the arm length corresponding lateral offset with respect to the pipe section to which the pipe clamp is attached.
  • a slide rail may, in principle, be suitably provided for any arrangement of the refrigerant tube in the wire tube evaporator so as to extend along the center line of the evaporator.
  • at least two arms with pipe clamps attached thereto are provided.
  • These arms are preferably mounted on a same longitudinal side of the rail body. This allows the use of a same slide for wire tube evaporator, in which the distances between parallel pipe sections differ slightly, or if the distance between parallel pipe sections due to production, this does not result in such an arrangement of the arms to a skew orientation of the slide with respect to the midline.
  • a hook is preferably arranged on the rail body with an insertion gap open in the longitudinal direction of the rail body, which accommodates a wire of the evaporator and the rail body so can be supported on this wire in the direction of the tensile or shear force.
  • a wire clip may be arranged with an insertion gap open transversely to the longitudinal direction of the rail body for insertion of a wire of the evaporator on the rail body.
  • both the hook and the wire clip are provided on opposite longitudinal ends of the rail body, respectively, so that the slide rail can be conveniently mounted by first placing the hook on a wire of the evaporator and then folding the rail body against the evaporator and clamping the wire clamp onto a wire second wire is attached.
  • the rail body and the at least one arm are preferably molded in one piece from a plastic.
  • the invention also provides an arrangement of a wire tube evaporator and at least one slide, as defined above, and a freezer with such an arrangement.
  • FIG. 1 is a perspective view of a slide rail according to the invention from above.
  • Fig. 2 is a perspective view of the slide rail from below;
  • Fig. 3 is a schematic section through a refrigeration device in which an equipped with slides according to the invention wire tube evaporator can be seen from above.
  • Figs. 1 and 2 The structure of the slide is first with reference to Figs. 1 and 2 described.
  • the free cross-section of the pipe clamp 3 is suitably dimensioned to positively encompass a refrigerant pipe of a wire tube evaporator, which will be discussed in more detail in connection with FIG. 3.
  • top of the arms 2 is slightly lower than the top of the rail body 1, so that in a sliding away a frozen food container over the top of the rail body 1 no risk of sticking of the frozen food at the transversely to the longitudinal direction of the rail body 1 extending edges the arms 2 consists.
  • the arms 2 are respectively stiffened by downwardly projecting webs 5, which give the arms 2 in its central region, between the rail body 1 and the pipe clamp 3, a T-shaped cross-section.
  • the thickness of the crossbar of the T which also corresponds to the thickness of the arm 2 in the region of the opening 4, is equalized to the diameter of the wires of the wire tube evaporator, so that the arm 2 does not protrude above it between two wires of the evaporator between which it extends in the assembled state; the height of the stiffening web 5 can be significantly greater, since this engages after installation in a free space of the wire tube evaporator.
  • each means for fixing the rail body to the wires of the wire tube evaporator are arranged.
  • These means consist on the one hand of a wire clamp 6 with two pairs of opposing tongues 7, which correspond in structure and function to the tongues of the pipe clamp 3, and which are adapted only in their dimensions to the plugging onto a wire of the evaporator.
  • a hook 8 is integrally formed as a means for fixing the rail body.
  • the hook 8 has a rail body 1 parallel to the free end portion 9, which limits an open towards the end of the rail body 1 receiving gap for a wire of the wire tube evaporator.
  • the gap 10 is here open towards the end of the rail body 1; However, it could also be opposite, with the center of the rail body 1 facing opening to be oriented.
  • a hole opposite the free end portion 9 in the rail body 1 allows molding of the rail body 1 and the hook 8 with only two rigid molds.
  • the attachment means could also include more than one hook or clip at each end of the rail body; it could also be provided only wire clips at both ends of the rail body.
  • Fig. 3 shows a schematic horizontal section through a refrigerator with a wire tube evaporator 11, which is equipped with three slide rails 12 according to the invention.
  • the wire tube evaporator 11 has a refrigerant pipe 13 with a total of six parallel to a center line M of the refrigerator from a rear wall of the refrigerator to the door opening extending pipe sections 14.
  • the pipe sections 14 are interconnected by a plurality of transverse to the center line M oriented wires
  • the arrangement of the refrigerant piping 13 is symmetrical with respect to the center line M, so that along the center line M none of the parallel pipe sections 14 extends. Instead, one of the three slide rails 12 is arranged along this center line M. It is held by means of its wire clamp 6 and the hook 8 to the wires 15 in the forward-backward direction and anchored by the pipe clamps 3 also in the transverse direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Supports For Pipes And Cables (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Table Equipment (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

A sliding rail for a wire-tube evaporator has an elongated rail body to be mounted on the evaporator and to protect the latter against abrasion caused by a frozen product container that slides above or on the evaporator. The sliding rail includes at least a tubular clamp for fixing the rail body on a refrigerating pipe of the evaporator. The tubular clamp is mounted on an arm projecting laterally relative to the rail body.

Description

Gleitschiene für einen Drahtrohrverdampfer Slide rail for a wire tube evaporator
Die vorliegende Erfindung betrifft eine Gleitschiene für einen Drahtrohrverdampfer, eine Anordnung aus einer Gleitschiene und einem solchen Verdampfer sowie ein damit ausgestattetes Kältegerät.The present invention relates to a slide rail for a wire tube evaporator, an arrangement of a slide rail and such an evaporator and a refrigeration device equipped therewith.
Ein Drahtrohrverdampfer ist herkömmlicherweise aufgebaut aus einem sich in einer Ebene mäanderartig erstreckenden Rohr für ein Kältemittel und einer Vielzahl von Drähten, die ober- oder unterhalb des Rohrs an einer Mehrzahl von Punkten mit diesem verbunden sind, einerseits, um eine mechanisch stabile, starre Anordnung zu schaffen, andererseits, um die wirksame Wärmeaustauschoberfläche des Verdampfers zu vergrößern.A wire tube evaporator is conventionally constructed of an in-plane meandering tube for a refrigerant and a plurality of wires connected thereto at a plurality of points above or below the tube, on the one hand, for a mechanically stable, rigid assembly on the other hand, to increase the effective heat exchange surface area of the evaporator.
Derartige Drahtrohrverdampfer kommen insbesondere in Gefrierschränken zum Einsatz, wo sie jeweils in Ebenen zwischen zwei Gefriergutbehältern angeordnet sind, um deren Inhalt wirksam zu kühlen.Such wire tube evaporators are used in particular in freezers, where they are each arranged in planes between two Gefriergutbehältern to effectively cool their contents.
Um das verfügbare Innenvolumen des Kältegeräts bestmöglich zu nutzen, werden diese Gefriergutbehälter in einem möglichst geringen vertikalen Abstand vom Drahtrohrverdampfer montiert. Bei voller Beladung besteht die Möglichkeit, dass die Gefriergutbehälter sich geringfügig verbiegen, was dazu führen kann, dass der Boden eines Gefriergutbehälters den darunterliegenden Drahtrohrverdampfer berührt. Wenn der Gefriergutbehälter herausgezogen wird, so schleift er über den Verdampfer, was zu Abrieb und vorzeitigem Verschleiss führen kann.In order to make the best possible use of the available internal volume of the refrigeration device, these frozen food containers are mounted in the smallest possible vertical distance from the wire tube evaporator. When fully loaded, there is a possibility that the frozen food containers will bend slightly, which may result in the bottom of a frozen food container touching the underlying wire tube evaporator. When the frozen food container is pulled out, it dribbles over the evaporator, which can lead to abrasion and premature wear.
Um solchen Abrieb zu vermeiden, ist es bekannt, auf dem Kältemittelrohr des Verdampfers eine Gleitschiene zu befestigen, die sich zwischen dem Verdampfer und einem darü- berliegenden Gefriergutbehälter erstreckt. Sie verhindert den unmittelbaren Kontakt zwischen dem Gefriergutbehälter und dem Verdampfer und verhindert so eine Beschädigung des Verdampfers durch Reibung; außerdem weist sie eine geringe Reibung an der dem Gefriergutbehälter zugewandten Oberfläche auf, so dass auch an diesem Abrieb weitgehend vermieden wird. Derartige Gleitschienen werden herkömmlicherweise unmittelbar auf die Rohre eines Drahtrohrverdampfers aufgeklemmt. Diese Lösung ist jedoch nicht vollauf befriedigend. Um die Verdampfer einfach montieren zu können, ist es nämlich notwendig, dass sich deren Ein- und Auslass für Kältemittel an einer gleichen Kante des im wesentlichen plat- tenförmigen Verdampfers befinden. Vorzugsweise handelt es sich dabei um die hintere, von der Tür des Kältegeräts abgewandte Kante. Die Zahl von parallelen Rohrabschnitten innerhalb des Verdampfers, die sich zwischen dieser und der gegenüberliegenden Kante erstrecken, ist notwendigerweise gerade. Wenn die Rohrabschnitte des Verdampfers über dessen Breite gleichmäßig verteilt sind, so gibt es entweder keinen Rohrabschnitt, der sich entlang einer Mittellinie des Verdampfers von der Rückwand zur Tür des Kältegerätes erstreckt, oder die Verteilung der Rohrabschnitte in Breitenrichtung des Verdampfers ist unsymmetrisch. Im ersteren Falle müssen jeweils zwei Gleitschienen symmetrisch angeordnet werden, denn wenn nur eine Gleitschiene abseits der Mitte angeordnet ist, so bewirkt dies einen Seitwärtsdrall beim Herausziehen und Hineinschieben des Gefriergutbehälters und damit die Gefahr, dass dieser steckenbleibt. Im Falle einer asymmetrischen Anordnung der Kältemittelleitung ist es möglich, einen Rohrabschnitt von ihr exakt entlang der Mittellinie zu führen und eine Gleitschiene auf diesem Rohrabschnitt zu befestigen. Diese Lösung ist jedoch wegen ihrer Asymmetrie unter fertigungstechnischen Gesichtspunkten sowie unter dem Aspekt der Verteilung der Kühlleistung innerhalb des Kältegeräts ungünstig.In order to avoid such abrasion, it is known to fasten on the refrigerant pipe of the evaporator a slide rail which extends between the evaporator and an overlying frozen goods container. It prevents direct contact between the frozen food container and the evaporator and thus prevents damage to the evaporator by friction; In addition, it has a low friction on the frozen goods container facing surface, so that also largely avoided at this abrasion. Such slide rails are conventionally clamped directly onto the tubes of a wire tube evaporator. However, this solution is not fully satisfactory. In order to be able to mount the evaporators simply, it is necessary for their inlet and outlet for refrigerants to be located at the same edge of the essentially plate-shaped evaporator. Preferably, this is the rear, facing away from the door of the refrigerator edge. The number of parallel pipe sections within the evaporator extending between it and the opposite edge is necessarily straight. When the tube sections of the evaporator are evenly distributed over the width thereof, there is either no tube section extending along a center line of the evaporator from the rear wall to the door of the refrigeration device, or the distribution of the tube sections in the width direction of the evaporator is asymmetrical. In the former case, two slides must be arranged symmetrically, because if only one slide is located away from the center, this causes a sideways twist when pulling out and pushing in the frozen goods and thus the risk that it gets stuck. In the case of an asymmetrical arrangement of the refrigerant line, it is possible to guide a pipe section of it exactly along the center line and to secure a slide rail on this pipe section. However, this solution is unfavorable because of their asymmetry under manufacturing aspects and in terms of the distribution of cooling capacity within the refrigerator.
Aufgabe der vorliegenden Erfindung ist, eine Gleitschiene für einen Drahtrohrverdampfer anzugeben, die exakt entlang einer Mittellinie des Verdampfers platzierbar ist, auch wenn sich entlang dieser Mittellinie kein Abschnitt des Kältemittelrohrs des Verdampfers erstreckt.The object of the present invention is to provide a slide rail for a wire tube evaporator, which can be placed exactly along a center line of the evaporator, even if no section of the refrigerant tube of the evaporator extends along this center line.
Die Aufgabe wird gelöst durch eine Gleitschiene mit den Merkmalen des Anspruchs 1.The object is achieved by a slide with the features of claim 1.
Der seitlich abstehende Arm erlaubt die Befestigung der Gleitschiene mit einem im Prinzip beliebigen, der Armlänge entsprechenden seitlichen Versatz in Bezug auf den Rohrabschnitt, an dem die Rohrklammer befestigt wird. Eine solche Gleitschiene kann im Prinzip für eine beliebige Anordnung des Kältemittelrohrs in dem Drahtrohrverdampfer passend so geschaffen werden, dass sie sich entlang der Mittellinie des Verdampfers erstreckt. Um ein Schwenken der Gleitschiene um die versetzt am Rohr angreifende Rohrklammer unter Zugbelastung durch einen darauf schleifenden Gefriergutbehälter zu vermeiden, sind vorzugsweise wenigstens zwei Arme mit daran angebrachter Rohrklammer vorgesehen.The laterally projecting arm allows the attachment of the slide with a basically any, the arm length corresponding lateral offset with respect to the pipe section to which the pipe clamp is attached. Such a slide rail may, in principle, be suitably provided for any arrangement of the refrigerant tube in the wire tube evaporator so as to extend along the center line of the evaporator. In order to avoid pivoting of the slide rail about the pipe clamp engaging the pipe under tensile loading by a frozen goods container grinding thereon, preferably at least two arms with pipe clamps attached thereto are provided.
Diese Arme sind vorzugsweise an einer gleichen Längsseite des Schienenkörpers angebracht. Dies erlaubt die Verwendung einer gleichen Gleitschiene für Drahtrohrverdampfer, bei denen sich die Abstände zwischen parallelen Rohrabschnitten geringfügig unterscheiden, bzw. wenn der Abstand zwischen parallelen Rohrabschnitten fertigungsbedingt streut, so führt dies bei einer solchen Anordnung der Arme nicht zu einer Schrägorientierung der Gleitschiene in Bezug auf die Mittellinie.These arms are preferably mounted on a same longitudinal side of the rail body. This allows the use of a same slide for wire tube evaporator, in which the distances between parallel pipe sections differ slightly, or if the distance between parallel pipe sections due to production, this does not result in such an arrangement of the arms to a skew orientation of the slide with respect to the midline.
Um zu verhindern, dass eine beim Herausziehen oder Hereinschieben eines Gefriergutbehälters auf die Gleitschiene wirkende Reibungskraft zu einer Verschiebung derselben führen kann, ist vorzugsweise an dem Schienenkörper ein Haken mit einem in Längsrichtung des Schienenkörpers offenen Einführspalt angeordnet, der einen Draht des Verdampfers aufnehmen und den Schienenkörper so an diesem Draht in Richtung der Zugoder Schubkraft abstützen kann. Zum gleichen Zweck kann eine Drahtklammer mit einem quer zur Längsrichtung des Schienenkörpers offenen Einführspalt zum Einführen eines Drahts des Verdampfers am Schienenkörper angeordnet sein.In order to prevent that a frictional force acting on the slide rail when pulling out or pushing in a frozen goods container can lead to a displacement thereof, a hook is preferably arranged on the rail body with an insertion gap open in the longitudinal direction of the rail body, which accommodates a wire of the evaporator and the rail body so can be supported on this wire in the direction of the tensile or shear force. For the same purpose, a wire clip may be arranged with an insertion gap open transversely to the longitudinal direction of the rail body for insertion of a wire of the evaporator on the rail body.
Vorzugsweise sind sowohl der Haken als auch die Drahtklammer an jeweils entgegengesetzten Längsenden des Schienenkörpers vorhanden, so dass die Gleitschiene bequem montiert werden kann, indem zunächst der Haken an einem Draht des Verdampfers angeordnet wird und dann der Schienenkörper gegen den Verdampfer geklappt und die Drahtklammer auf einen zweiten Draht aufgesteckt wird.Preferably, both the hook and the wire clip are provided on opposite longitudinal ends of the rail body, respectively, so that the slide rail can be conveniently mounted by first placing the hook on a wire of the evaporator and then folding the rail body against the evaporator and clamping the wire clamp onto a wire second wire is attached.
Der Schienenkörper und der wenigstens eine Arm sind vorzugsweise einteilig aus einem Kunststoff geformt.The rail body and the at least one arm are preferably molded in one piece from a plastic.
Gegenstand der Erfindung ist auch eine Anordnung aus einem Drahtrohrverdampfer und wenigstens einer Gleitschiene, wie oben definiert, sowie ein Gefriergerät mit einer solchen Anordnung. Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels mit Bezug auf die beigefügten Figuren. Es zeigen:The invention also provides an arrangement of a wire tube evaporator and at least one slide, as defined above, and a freezer with such an arrangement. Further features and advantages of the invention will become apparent from the following description of an embodiment with reference to the accompanying figures. Show it:
Fig. 1 eine perspektivische Ansicht einer erfindungsgemäßen Gleitschiene von oben;1 is a perspective view of a slide rail according to the invention from above.
Fig. 2 eine perspektivische Ansicht der Gleitschiene von unten; undFig. 2 is a perspective view of the slide rail from below; and
Fig. 3 einen schematischen Schnitt durch ein Kältegerät, in dem ein mit erfindungsgemäßen Gleitschienen ausgestatteter Drahtrohrverdampfer von oben zu sehen ist.Fig. 3 is a schematic section through a refrigeration device in which an equipped with slides according to the invention wire tube evaporator can be seen from above.
Der Aufbau der Gleitschiene wird zunächst mit Bezug auf die Figs. 1 und 2 beschrieben. Man erkennt einen langgestreckten, plattenartigen Schienenkörper 1 mit einer glatten Oberseite. Von einer Längskante des Schienenkörpers 1 aus erstrecken sich rechtwinklig zwei Arme 2, die an ihrer Unterseite jeweils zwei nach unten vorspringende, eine Rohrklammer 3 bildende Zungen tragen. Der freie Querschnitt der Rohrklammer 3 ist passend bemessen, um eine Kältemittelleitung eines Drahtrohrverdampfers, auf den in Verbindung mit Fig. 3 noch genauer eingegangen wird, formschlüssig zu umgreifen. Eine an der O- berseite jedes Arms 2 zwischen den Zungen der Rohrklammer 3 gebildete Öffnung 4 erleichtert zum einen, in dem sie den Arm 2 mechanisch schwächt, ein Auseinanderspreizen der Zungen und damit das Aufstecken der Rohrklammer 3 auf das Kältemittelrohr und zum anderen das Formen der gesamten Gleitschiene einschließlich von einander zugewandten Vorsprüngen 16 der Zungen mit Hilfe von nur zwei Formwerkzeugen, die keine beweglichen Teile aufweisen müssen.The structure of the slide is first with reference to Figs. 1 and 2 described. One recognizes an elongated, plate-like rail body 1 with a smooth top. From a longitudinal edge of the rail body 1 extending at right angles two arms 2, each carrying two downwardly projecting, forming a pipe clamp 3 tongues on its underside. The free cross-section of the pipe clamp 3 is suitably dimensioned to positively encompass a refrigerant pipe of a wire tube evaporator, which will be discussed in more detail in connection with FIG. 3. An opening 4 formed on the upper side of each arm 2 between the tongues of the pipe clamp 3, on the one hand, in which it mechanically weakens the arm 2, facilitates spreading the tongues apart and thus attaching the pipe clamp 3 to the refrigerant pipe and, on the other hand, molding the entire slide including mutually facing projections 16 of the tongues by means of only two molds, which need not have any moving parts.
Die in Fig. 1 sichtbare Oberseite der Arme 2 liegt geringfügig tiefer als die Oberseite des Schienenkörpers 1 , so dass bei einem Hinweggleiten eines Gefriergutbehälters über die Oberseite des Schienenkörpers 1 keine Gefahr des Hängenbleibens des Gefriergutbehälters an den sich quer zur Längsrichtung des Schienenkörpers 1 erstreckenden Kanten der Arme 2 besteht.The visible in Fig. 1 top of the arms 2 is slightly lower than the top of the rail body 1, so that in a sliding away a frozen food container over the top of the rail body 1 no risk of sticking of the frozen food at the transversely to the longitudinal direction of the rail body 1 extending edges the arms 2 consists.
Wie in Fig. 2 zu erkennen ist, sind die Arme 2 jeweils durch nach unten vorspringende Stege 5 versteift, die den Armen 2 in ihrem mittleren Bereich, zwischen dem Schienenkörper 1 und der Rohrklammer 3, einen T-förmigen Querschnitt verleihen. Die Dicke des Querbalkens des T, der auch der Dicke des Arms 2 im Bereich der Öffnung 4 entspricht, ist dem Durchmesser der Drähte des Drahtrohrverdampfers angeglichen, so dass der Arm 2 nicht zwischen zwei Drähten des Verdampfers, zwischen denen er sich im montierten Zustand erstreckt, über diese hinaus nach oben vorsteht; die Höhe des versteifenden Steges 5 kann deutlich größer sein, da dieser nach der Montage in einen freien Raum des Drahtrohrverdampfers eingreift.As can be seen in Fig. 2, the arms 2 are respectively stiffened by downwardly projecting webs 5, which give the arms 2 in its central region, between the rail body 1 and the pipe clamp 3, a T-shaped cross-section. The thickness of the crossbar of the T, which also corresponds to the thickness of the arm 2 in the region of the opening 4, is equalized to the diameter of the wires of the wire tube evaporator, so that the arm 2 does not protrude above it between two wires of the evaporator between which it extends in the assembled state; the height of the stiffening web 5 can be significantly greater, since this engages after installation in a free space of the wire tube evaporator.
An den Längsenden des Schienenkörpers 1 sind jeweils Mittel zur Befestigung des Schienenkörpers an den Drähten des Drahtrohrverdampfers angeordnet.At the longitudinal ends of the rail body 1 each means for fixing the rail body to the wires of the wire tube evaporator are arranged.
Diese Mittel bestehen hier zum einen aus einer Drahtklammer 6 mit zwei Paaren von einander gegenüberliegenden Zungen 7, die in Aufbau und Funktion den Zungen der Rohrklammer 3 entsprechen, und die lediglich in ihren Abmessungen an das Aufstecken auf einen Draht des Verdampfers angepasst sind.These means consist on the one hand of a wire clamp 6 with two pairs of opposing tongues 7, which correspond in structure and function to the tongues of the pipe clamp 3, and which are adapted only in their dimensions to the plugging onto a wire of the evaporator.
Am zweiten, in Figs. 1 und 2 vom Betrachter abgewandten Ende des Schienenkörpers 1 ist ein Haken 8 als Mittel zur Befestigung des Schienenkörpers einteilig ausgeformt. Der Haken 8 weist einen zum Schienenkörper 1 parallelen freien Endabschnitt 9 auf, der einen zum Ende des Schienenkörpers 1 hin offenen Aufnahmespalt für einen Draht des Drahtrohrverdampfers begrenzt. Der Spalt 10 ist hier zum Ende des Schienenkörpers 1 hin offen; er könnte jedoch auch entgegengesetzt, mit der Mitte des Schienenkörpers 1 zugewandter Öffnung, orientiert sein. Ein dem freien Endabschnitt 9 im Schienenkörper 1 gegenüberliegendes Loch erlaubt das Formen des Schienenkörpers 1 und des Hakens 8 mit nur zwei starren Formwerkzeugen.At the second, in Figs. 1 and 2 facing away from the viewer end of the rail body 1, a hook 8 is integrally formed as a means for fixing the rail body. The hook 8 has a rail body 1 parallel to the free end portion 9, which limits an open towards the end of the rail body 1 receiving gap for a wire of the wire tube evaporator. The gap 10 is here open towards the end of the rail body 1; However, it could also be opposite, with the center of the rail body 1 facing opening to be oriented. A hole opposite the free end portion 9 in the rail body 1 allows molding of the rail body 1 and the hook 8 with only two rigid molds.
Selbstverständlich könnten die Befestigungsmittel auch mehr als einen Haken oder eine Klammer an jedem Ende des Schienenkörpers umfassen; es könnten auch nur Drahtklammern an beiden Enden des Schienenkörpers vorgesehen werden.Of course, the attachment means could also include more than one hook or clip at each end of the rail body; it could also be provided only wire clips at both ends of the rail body.
Fig. 3 zeigt einen schematischen horizontalen Schnitt durch ein Kältegerät mit einem Drahtrohrverdampfer 11, der mit drei Gleitschienen 12 gemäß der Erfindung ausgestattet ist. Der Drahtrohrverdampfer 11 weist eine Kältemittel-Rohrleitung 13 mit insgesamt sechs sich parallel zu einer Mittellinie M des Kältegeräts von einer Rückwand des Kältegeräts zu dessen Türöffnung erstreckenden Rohrabschnitten 14 auf. Die Rohrabschnitte 14 sind untereinander durch eine Vielzahl von quer zur Mittellinie M orientierten DrähtenFig. 3 shows a schematic horizontal section through a refrigerator with a wire tube evaporator 11, which is equipped with three slide rails 12 according to the invention. The wire tube evaporator 11 has a refrigerant pipe 13 with a total of six parallel to a center line M of the refrigerator from a rear wall of the refrigerator to the door opening extending pipe sections 14. The pipe sections 14 are interconnected by a plurality of transverse to the center line M oriented wires
15 verbunden und versteift.15 connected and stiffened.
Die Anordnung der Kältemittel-Rohrleitung 13 ist symmetrisch in Bezug auf die Mittellinie M, so dass sich entlang der Mittellinie M keiner der parallelen Rohrabschnitte 14 erstreckt. Statt dessen ist entlang dieser Mittellinie M eine der drei Gleitschienen 12 angeordnet. Sie ist mit Hilfe ihrer Drahtklammer 6 und des Hakens 8 an den Drähten 15 in Vorwärts-Rück- wärts-Richtung festgehalten und durch die Rohrklammern 3 auch in Querrichtung verankert. The arrangement of the refrigerant piping 13 is symmetrical with respect to the center line M, so that along the center line M none of the parallel pipe sections 14 extends. Instead, one of the three slide rails 12 is arranged along this center line M. It is held by means of its wire clamp 6 and the hook 8 to the wires 15 in the forward-backward direction and anchored by the pipe clamps 3 also in the transverse direction.

Claims

Patentansprüche claims
1. Gleitschiene (12) für einen Drahtrohrverdampfer (11), mit einem langgestreckten Schienenkörper (1) und wenigstens einer Rohrklammer (3) zur Befestigung des Schienenkörpers (1) an einem Rohr (14) des Verdampfers (11), dadurch gekennzeichnet, dass die Rohrklammer (3) an einem vom Schienenkörper (1) seitlich abstehenden Arm (2) angebracht ist.A slide rail (12) for a wire tube evaporator (11), comprising an elongated rail body (1) and at least one pipe clamp (3) for fixing the rail body (1) to a pipe (14) of the evaporator (11), characterized in that the pipe clamp (3) is attached to an arm (2) projecting laterally from the rail body (1).
2. Gleitschiene nach Anspruch 1 , dadurch gekennzeichnet, dass sie wenigstens zwei Arme (2) mit daran angebrachter Rohrklammer (3) aufweist.2. Slide rail according to claim 1, characterized in that it comprises at least two arms (2) with attached thereto pipe clip (3).
3. Gleitschiene nach Anspruch 2, dadurch gekennzeichnet, dass die Arme (2) an einer gleichen Längsseite des Schienenkörpers (1) angebracht sind.3. Slide rail according to claim 2, characterized in that the arms (2) on a same longitudinal side of the rail body (1) are mounted.
4. Gleitschiene nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass an dem Schienenkörper (1) ein Haken (8) mit einem in Längsrichtung des Schienenkörpers (1) offenen Einführspalt (10) für einen Draht (15) des Verdampfers (11) angeordnet ist.4. Slide rail according to one of the preceding claims, characterized in that on the rail body (1) a hook (8) with an in the longitudinal direction of the rail body (1) open insertion gap (10) for a wire (15) of the evaporator (11) is.
5. Gleitschiene nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass an dem Schienenkörper (1) eine Drahtklammer (6) mit einem quer zur Längsrichtung des Schienenkörpers (1) offenen Einführspalt (10) für einen Draht (15) des Verdampfers (11) angeordnet ist.5. Slide rail according to one of the preceding claims, characterized in that on the rail body (1) a wire clamp (6) with a transversely to the longitudinal direction of the rail body (1) open insertion gap (10) for a wire (15) of the evaporator (11) is arranged.
6. Gleitschiene nach Anspruch 4 und Anspruch 5, dadurch gekennzeichnet, dass der Haken (8) und die Drahtklammer (6) an entgegengesetzten Längsenden des Schienenkörpers (1) angeordnet sind.6. Slide rail according to claim 4 and claim 5, characterized in that the hook (8) and the wire clamp (6) at opposite longitudinal ends of the rail body (1) are arranged.
7. Gleitschiene nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schienenkörper (1) und der wenigstens eine Arm (2) einteilig aus einem Kunststoff geformt sind. 7. Slide rail according to one of the preceding claims, characterized in that the rail body (1) and the at least one arm (2) are integrally formed from a plastic.
8. Anordnung aus einem Drahtrohrverdampfer (11) und wenigstens einer Gleitschiene (12) nach einem der vorhergehenden Ansprüche.8. Arrangement of a wire tube evaporator (11) and at least one slide rail (12) according to one of the preceding claims.
9. Gefriergerät mit wenigstens einer Anordnung nach Anspruch 8 und einem über der Anordnung verschiebbar montierten Gefriergutträger. 9. freezer with at least one arrangement according to claim 8 and a slidably mounted on the arrangement Gefgutgutträger.
EP02785184A 2001-10-23 2002-10-09 Sliding rail for wire tubular evaporator Expired - Lifetime EP1442259B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20117578U DE20117578U1 (en) 2001-10-23 2001-10-23 Slide rail for a wire tube evaporator
DE20117578U 2001-10-23
PCT/EP2002/011320 WO2003036195A1 (en) 2001-10-23 2002-10-09 Sliding rail for wire tubular evaporator

Publications (2)

Publication Number Publication Date
EP1442259A1 true EP1442259A1 (en) 2004-08-04
EP1442259B1 EP1442259B1 (en) 2009-04-08

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EP02785184A Expired - Lifetime EP1442259B1 (en) 2001-10-23 2002-10-09 Sliding rail for wire tubular evaporator

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US (1) US6997011B2 (en)
EP (1) EP1442259B1 (en)
CN (1) CN100402955C (en)
AT (1) ATE428095T1 (en)
BR (1) BR0213385A (en)
DE (2) DE20117578U1 (en)
ES (1) ES2323578T3 (en)
RU (1) RU2269729C2 (en)
WO (1) WO2003036195A1 (en)

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Also Published As

Publication number Publication date
DE20117578U1 (en) 2002-01-17
DE50213432D1 (en) 2009-05-20
CN100402955C (en) 2008-07-16
WO2003036195A1 (en) 2003-05-01
RU2269729C2 (en) 2006-02-10
CN1575400A (en) 2005-02-02
RU2004111688A (en) 2005-05-20
US6997011B2 (en) 2006-02-14
US20040226315A1 (en) 2004-11-18
BR0213385A (en) 2005-01-11
ES2323578T3 (en) 2009-07-21
EP1442259B1 (en) 2009-04-08
ATE428095T1 (en) 2009-04-15

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