EP2906887B1 - A cooling device with a magnet valve - Google Patents

A cooling device with a magnet valve Download PDF

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Publication number
EP2906887B1
EP2906887B1 EP13774117.9A EP13774117A EP2906887B1 EP 2906887 B1 EP2906887 B1 EP 2906887B1 EP 13774117 A EP13774117 A EP 13774117A EP 2906887 B1 EP2906887 B1 EP 2906887B1
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EP
European Patent Office
Prior art keywords
solenoid valve
cable
shell
magnet valve
wall
Prior art date
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EP13774117.9A
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German (de)
French (fr)
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EP2906887A1 (en
Inventor
Hans Gerd Keller
Andreas Kemmer
Michaela Malisi
Berthold Pflomm
Peter Schundner
Roman Stroh
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Priority to PL13774117T priority Critical patent/PL2906887T3/en
Publication of EP2906887A1 publication Critical patent/EP2906887A1/en
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Publication of EP2906887B1 publication Critical patent/EP2906887B1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00General constructional features
    • F25D23/006General constructional features for mounting refrigerating machinery components
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/40Refrigerating devices characterised by electrical wiring

Definitions

  • the present invention relates to a refrigeration appliance, in particular a domestic refrigeration appliance, which uses at least one solenoid valve to control the refrigerant flow.
  • a solenoid valve can serve in a single-circuit refrigeration device to lock in a standstill phase of the compressor and thus to prevent unwanted heat transfer and exchange of refrigerant between condenser and evaporator.
  • Solenoid valves are used in a two-or multi-circuit device to selectively supply refrigerant to one of several evaporators.
  • US2005 / 0173323 A1 discloses another example of the prior art and shows a refrigerator to the housing of two solenoid valves are attached.
  • solenoid valves In a refrigerator, the installation of a solenoid valve in a refrigerator is cumbersome because not only the valve body must be mechanically fixed, but soldered pipe connections and electrical connections must be contacted.
  • the object of the invention is to meet this need.
  • the object is achieved by a refrigeration device with the features of claim 1. Since the shell protects the cable from unforeseen stress, a strain relief is no longer necessary, and the conventionally associated costs continue to fall. A confusion of cables during assembly is due to their lengths locked out. Although the second cable can first be incorrectly mounted on the first solenoid valve, but this error falls at the latest when a contacting of the second solenoid valve is impossible.
  • the necessary electrical contacts of the cable can be made to the connector and the solenoid valve outside of the refrigerator housing, which further simplifies the installation process.
  • the shell has at least one latching contour which can be latched by being plugged in the direction of insertion of the connector on the housing of the refrigerator, a single handle is sufficient to contact the connectors together and at the same time to secure the shell to the housing.
  • the shell preferably has at least one elastic latching hook, which acts on the solenoid valve. So it is sufficient for the anchoring of the solenoid valve to push it into the designated slot in the shell. The effort conventionally associated with the tightening of the solenoid valve is eliminated. Since the shell is a relatively small-sized part and can be made inexpensively from plastic, it is possible with relatively little effort to adapt their shape to that of the solenoid valve that a secure locking is possible.
  • the cable may conveniently be fixed between the first connector and the solenoid valve at least at one point of the shell to ensure that it is completely covered by the shell after insertion from the solenoid valve and shell into the refrigerator and thus protected from contact.
  • the cables connecting the first and second solenoid valves to the first connector are preferably preassembled on the first connector and are first plugged into the assembly of the refrigerator or the assembly to be mounted therein with the solenoid valves.
  • Fig. 1 shows a perspective view of a household refrigerator according to the present invention. Shown here is a combination refrigerator with a
  • Housing 1 comprising a body 2 with two refrigerators, typically a normal refrigerated compartment and a freezer compartment, and two doors 3, 4 for closing the normal refrigeration compartment or the freezer compartment.
  • a machine room 5 is recessed near the bottom, in which a compressor 6 is housed in the usual way.
  • the compressor 6 feeds compressed refrigerant a condenser 7, which is here shown plate-shaped and mounted on the rear wall of the body 2 above the engine room 5, but could find space in a more compact design in the engine room 5 itself.
  • a solenoid valve assembly 8 is connected, the construction and mounting in the engine room 5 on the basis of Fig. 2 to 4 will be explained in more detail.
  • the solenoid valve assembly 8 includes one or more solenoid valves that control the distribution of condensed refrigerant in the condenser 7 on (not shown) evaporator of the normal refrigeration compartment and the freezer compartment.
  • the solenoid valve assembly is mounted in a corner bounded by a sidewall and ceiling of the engine room 5 (and therefore largely obscured), but it is understood that basically any solid surface of the engine room 5, and in particular a rear wall 9 thereof, for mounting the solenoid valve assembly 8 can be considered.
  • Fig. 2 shows the solenoid valve assembly 8 in an enlarged perspective view. It comprises a molded plastic one-piece shell 10, which has slots for two solenoid valves 11, 12 in its interior.
  • the solenoid valves 11, 12 here have a substantially cuboidal body, and on two opposite walls 13, 14 of the shell 10 are each elastically deflectable tongues 15th cut free, carry the locking hooks 16 projecting into the interior of the shell.
  • the latching hooks 16 have chamfered end surfaces, which are initially deflected elastically when the solenoid valves 11, 12 are pushed into their slots, in order subsequently to encompass one edge of the body of the solenoid valves 12, 13 and thus fix the solenoid valves 12, 13 in a form-fitting manner in the shell 10 , Further into the interior of the shell 10 projecting locking hooks 17 serve to secure pipe connections 18 of the solenoid valves.
  • a connector 19 is anchored in a recess of the wall 14. Of the four poles of the connector 19, two are each associated with the solenoid valves 11 and the solenoid valve 12 and connected via a cable 20 or 21 with the respective solenoid valve 11 and 12 respectively.
  • the cables 20, 21 are pre-assembled on the connector 19 to be inserted together with this in the recess of the wall 14. At their ends remote from the connector 19, the cables 20, 21 each carry two plug-in shoes for attachment to plate-shaped contacts of the solenoid valves 11, 12, which are hidden here in housing projections 22 of the solenoid valves 11, 12.
  • the cables 20, 21 are clamped.
  • the cables 20, 21 are fixed substantially immovably over their entire length, and there is no danger that, if the assembly of the Fig. 2 mounted in the refrigerator, a cable protrudes unprotected from the shell 10 or between the walls of the shell 10 and the wall of the engine room 5 is clamped.
  • the length of the cables 20, 21 is dimensioned so that when the connector 19 is mounted in its recess, not far from a side facing away from the solenoid valve 12 end wall 25 of the shell 10, only the cable 21 is long enough to contact the solenoid valve 12. Consequently, since there is only one way in which the solenoid valves 11, 12 can be electrically contacted, errors in contacting the solenoid valves 11, 12 are excluded.
  • the end wall 25 carries an in Fig. 2 in perspective, in Fig. 3 in a plan view of the end wall shown latching device 26 which serves to anchor the solenoid valve assembly 8 on the refrigerator body 2.
  • the latching device 26 has approximately the shape of a cuboid, which is elongated in the insertion direction of the connector 19 and at one of facing away from the shell front end to facilitate insertion into a locking recess of the body 2 is tapered.
  • Two side walls of the parallelepiped shape are formed by ribs 27 projecting from the end wall 25 and elongated radially to the insertion direction.
  • a latching tongue 28 forms a side facing away from the end wall 25 side of the cuboid.
  • the latching tongue 28 is connected only via its front end with the latching device 26 and elastically deflectable into a free space between the ribs 27 inside. At its rear end, the latching tongue 28 carries a projection 29. At one in the perspective of the Fig. 2 facing away from the viewer back of the projection 29, a recess is formed, in which a tool, such as a screwdriver, can be introduced to deflect the latching tongue 28.
  • Fig. 3 shows the shell 10 in a plan view of the end wall 25. It can be seen a recess 30 of the end wall, which is provided to receive a pipe of the solenoid valve 11 in the assembled state and the connector 19, which projects beyond the contour of the end wall 25 in part to engage in a complementary connector of the body 2.
  • the connector 19 here has a roughly cube-shaped main body 31 made of plastic, projecting from the plurality of sleeves 32, in each of which extends a metallic contact pin.
  • a two-armed lever 33 is formed, of which one arm is formed as a barb 34 and the other arm 35 is accessible through a not visible in the figure window of the wall 14 to pivot by the lever 33, the barb 34 of a Detach locking edge of the complementary, body-side connector.
  • Fig. 4 shows in a perspective view a section of a molded plastic lining of the engine room 5 with a niche for the solenoid valve assembly 8 in the engine room 5.
  • the two outer wall panels 37, 39 each carry two horizontal, mirror image mutually oriented ribs 40. Between the rear wall 9 remote from the ends of the ribs 40 extends a slot 41.
  • the middle wall plate 38 is smaller in size than the two outer wall panels 37th , 39, but like the wall plate 39, is provided with ribs 40 and a slot 41 which are mirrored to the corresponding ribs 40 and the slot 41 of the wall plate 37.
  • the connector 19 complementary, body-side connector 42 with four sockets 43 and a slot 44 in which the barb 34 is latched.
  • the locking means 26 When installing the solenoid valve assembly 8, the locking means 26 are inserted into the formed between the ribs 40 on the wall plates 37, 38 grooves until the tips of the locking devices 26 abut against a stop 45 and the projections 29 of their locking tongues 28 in the slots 41 of the wall panels 37th , 39 engage and the barbs 34 of the connector 19 hooked in the slot 44. Consequently, the shell 10 is anchored at three points on the body 2 and securely fixed. To solve it again, is only possible if at the same time by pressing against the arm 35 of the barb 34 is released and with the aid of a between the wall plates 37, 39 and the end walls 25 of the shell 10 imported tool such as a screwdriver, the projections 29 from the Slits 41 are pulled out.
  • the middle wall plate 38 is in the installation of in Fig. 2 shown solenoid valve assembly 8 functionless.
  • the purpose of the wall panel 38 is that when the engine room lining of the Fig. 4 is installed in another refrigeration unit model, which requires only one solenoid valve, a solenoid valve assembly from in Fig. 5 shown type with a smaller, only one slot having shell 46 between the wall plates 37, 38 and the connector 42 can be latched.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Valve Housings (AREA)

Description

Die vorliegende Erfindung betrifft ein Kältegerät, insbesondere ein Haushaltskältegerät, das zum Steuern des Kältemittelflusses wenigstens ein Magnetventil verwendet. Ein solches Magnetventil kann in einem Einkreis-Kältegerät dazu dienen, in einer Stillstandsphase des Verdichters zu sperren und so einen unerwünschten Wärmetransport und Austausch von Kältemittel zwischen Verflüssiger und Verdampfer zu unterbinden. In einem Zwei- oder Mehrkreisgerät kommen Magnetventile zum Einsatz, um Kältemittel selektiv einem von mehreren Verdampfern zuzuführen.The present invention relates to a refrigeration appliance, in particular a domestic refrigeration appliance, which uses at least one solenoid valve to control the refrigerant flow. Such a solenoid valve can serve in a single-circuit refrigeration device to lock in a standstill phase of the compressor and thus to prevent unwanted heat transfer and exchange of refrigerant between condenser and evaporator. Solenoid valves are used in a two-or multi-circuit device to selectively supply refrigerant to one of several evaporators.

Aus US 2006/0260342 A1 ist ein Kältegerät bekannt, bei dem in einer Nische in einer Rückwand eines Kühlraums ein Wassertank und ein den Fluss durch den Wassertank steuerndes Magnetventil hinter einer Abdeckung verborgen sind.Out US 2006/0260342 A1 a refrigeration device is known in which in a niche in a rear wall of a refrigerator, a water tank and a flow through the water tank controlling solenoid valve are hidden behind a cover.

US2005/0173323 A1 offenbart ein weiteres Beispiel aus dem Stand der Technik und zeigt ein Kältegerät an dessen Gehäuse zwei Magnetventile befestigt sind. US2005 / 0173323 A1 discloses another example of the prior art and shows a refrigerator to the housing of two solenoid valves are attached.

Die Montage eines Magnetventils in einem Kältegerät ist mühsam, da nicht nur der Ventilkörper mechanisch fixiert werden muss, sondern Rohranschlüsse verlötet und elektrische Anschlüsse kontaktiert werden müssen. Herkömmlicherweise weisen Magnetventile vielfach Schraubösen für die mechanische Befestigung sowie plättchenförmige elektrische Kontakte auf, die durch Aufstecken eines Steckschuhs eines Versorgungskabels kontaktierbar sind. Sofern das Versorgungskabel nicht seinerseits fest am Gehäuse des Kältegeräts montiert ist, benötigt es eine Zugentlastung, um sicherzustellen, dass ein versehentlich auf das Kabel ausgeübter Zug nicht zu Schäden am Kabel oder zum Freilegen der eventuell Spannung führenden elektrischen Kontakte führen kann. Alle diese Komplikationen beim Einbau machen den Einsatz von Magnetventilen in Haushaltskältegeräten teuer. Es besteht daher der Bedarf nach Lösungen, die den Aufwand beim Einbau der Magnetventile verringern.The installation of a solenoid valve in a refrigerator is cumbersome because not only the valve body must be mechanically fixed, but soldered pipe connections and electrical connections must be contacted. Conventionally, solenoid valves often have screw eyes for the mechanical fastening and plate-shaped electrical contacts, which can be contacted by attaching a plug-in shoe of a supply cable. Unless the power supply cable is firmly mounted to the housing of the refrigerator, it requires a strain relief to ensure that an inadvertent pull on the cable can not damage the cable or expose any live electrical contacts. All of these installation complications make the use of solenoid valves in domestic refrigerators expensive. There is therefore a need for solutions that reduce the effort when installing the solenoid valves.

Aufgabe der Erfindung ist, diesen Bedarf zu befriedigen.The object of the invention is to meet this need.

Die Aufgabe wird gelöst durch ein Kältegerät mit den Merkmalen des Anspruchs 1. Da die Schale das Kabel vor unvorhergesehener Beanspruchung schützt, ist eine Zugentlastung nicht mehr erforderlich, und die damit herkömmlicherweise verbundenen Kosten fallen fort. Eine Verwechslung von Kabeln bei der Montage ist aufgrund ihrer Längen ausgeschlossen. Zwar kann das zweite Kabel zunächst fehlerhaft am ersten Magnetventil montiert werden, doch fällt dieser Fehler spätestens dann auf, wenn eine Kontaktierung des zweiten Magnetventils unmöglich ist.The object is achieved by a refrigeration device with the features of claim 1. Since the shell protects the cable from unforeseen stress, a strain relief is no longer necessary, and the conventionally associated costs continue to fall. A confusion of cables during assembly is due to their lengths locked out. Although the second cable can first be incorrectly mounted on the first solenoid valve, but this error falls at the latest when a contacting of the second solenoid valve is impossible.

Da der erste Steckverbinder, die Schale und das Magnetventil zu einer Baugruppe verbunden sind, können die nötigen elektrischen Kontakte des Kabels zum Steckverbinder und zum Magnetventil außerhalb des Kältegerätegehäuses hergestellt werden, was den Einbauvorgang weiter vereinfacht.Since the first connector, the shell and the solenoid valve are connected to a module, the necessary electrical contacts of the cable can be made to the connector and the solenoid valve outside of the refrigerator housing, which further simplifies the installation process.

Da die Schale wenigstens eine Rastkontur aufweist, die durch Aufstecken in Steckrichtung des Steckverbinders an dem Gehäuse des Kältegeräts verrastbar ist, genügt ein einziger Handgriff, um die Steckverbinder miteinander zu kontaktieren und gleichzeitig die Schale am Gehäuse zu befestigen.Since the shell has at least one latching contour which can be latched by being plugged in the direction of insertion of the connector on the housing of the refrigerator, a single handle is sufficient to contact the connectors together and at the same time to secure the shell to the housing.

Die Schale weist vorzugsweise wenigstens einen elastischen Rasthaken auf, der an dem Magnetventil angreift. So genügt es für die Verankerung des Magnetventils, es in den dafür vorgesehenen Einbauplatz in der Schale hineinzudrücken. Der herkömmlicherweise mit dem Festschrauben des Magnetventils verbundene Aufwand entfällt. Da die Schale ein relativ kleinformatiges Teil ist und aus Kunststoff preiswert hergestellt werden kann, ist es bei ihr mit relativ geringem Aufwand möglich, ihre Form so an die des Magnetventils anzupassen, dass eine sichere Verrastung möglich ist.The shell preferably has at least one elastic latching hook, which acts on the solenoid valve. So it is sufficient for the anchoring of the solenoid valve to push it into the designated slot in the shell. The effort conventionally associated with the tightening of the solenoid valve is eliminated. Since the shell is a relatively small-sized part and can be made inexpensively from plastic, it is possible with relatively little effort to adapt their shape to that of the solenoid valve that a secure locking is possible.

Das Kabel kann zweckmäßigerweise zwischen dem ersten Steckverbinder und dem Magnetventil an wenigstens einer Stelle der Schale fixiert sein, um sicherzustellen, dass es nach dem Einfügen vom Magnetventil und Schale in das Kältegerät von der Schale vollständig abgedeckt und so vor Berührung geschützt ist.The cable may conveniently be fixed between the first connector and the solenoid valve at least at one point of the shell to ensure that it is completely covered by the shell after insertion from the solenoid valve and shell into the refrigerator and thus protected from contact.

Die Kabel, die das erste und das zweite Magnetventil mit dem ersten Steckverbinder verbinden, sind vorzugweise am ersten Steckverbinder vormontiert und werden erst beim Zusammenbau des Kältegeräts oder der darin zu montierenden Baugruppe mit den Magnetventilen steckverbunden.The cables connecting the first and second solenoid valves to the first connector are preferably preassembled on the first connector and are first plugged into the assembly of the refrigerator or the assembly to be mounted therein with the solenoid valves.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen unter Bezugnahme auf die beigefügten Figuren. Aus dieser Beschreibung und den Figuren gehen auch Merkmale der Ausführungsbeispiele hervor, die nicht in den Ansprüchen erwähnt sind. Solche Merkmale können auch in anderen als den hier spezifisch offenbarten Kombinationen auftreten. Die Tatsache, dass mehrere solche Merkmale in einem gleichen Satz oder in einer anderen Art von Textzusammenhang miteinander erwähnt sind, rechtfertigt daher nicht den Schluss, dass sie nur in der spezifisch offenbarten Kombination auftreten können; stattdessen ist grundsätzlich davon auszugehen, dass von mehreren solchen Merkmalen auch einzelne weggelassen oder abgewandelt werden können, sofern dies die Funktionsfähigkeit der Erfindung nicht in Frage stellt. Es zeigen:

  • Fig. 1 eine perspektivische Ansicht eines erfindungsgemäßen Haushaltskältegeräts;
  • Fig. 2 eine Magnetventilbaugruppe des Kältegeräts in perspektivischer Ansicht;
  • Fig. 3 eine Seitenansicht einer Schale der Magnetventilbaugruppe;
  • Fig. 4 eine perspektivische Ansicht einer Einbaunische der Magnetventilbaugruppe am Korpus des Kältegeräts; und
  • Fig. 5 eine Ausführungsform die nicht unter dem Gegenstand der vorliegenden Erfindung fällt und zeigt eine Magnetventilbaugruppe in perspektivischer Ansicht.
Further features and advantages of the invention will become apparent from the following description of embodiments with reference to the accompanying figures. From this description and the figures also show features of the embodiments, which are not mentioned in the claims. Such features may also occur in combinations other than those specifically disclosed herein. Therefore, the fact that several such features are mentioned in the same sentence or in a different type of textual context does not justify the conclusion that they can occur only in the specific combination disclosed; instead, it is generally to be assumed that it is also possible to omit or modify individual ones of several such features, provided this does not call into question the functionality of the invention. Show it:
  • Fig. 1 a perspective view of a household refrigerator according to the invention;
  • Fig. 2 a solenoid valve assembly of the refrigerator in perspective view;
  • Fig. 3 a side view of a shell of the solenoid valve assembly;
  • Fig. 4 a perspective view of an installation niche of the solenoid valve assembly on the body of the refrigerator; and
  • Fig. 5 an embodiment which does not fall under the subject of the present invention and shows a solenoid valve assembly in perspective view.

Fig. 1 zeigt eine perspektivische Ansicht eines Haushaltskältegeräts gemäß der vorliegenden Erfindung. Dargestellt ist hier ein Kombinationskältegerät mit einem Fig. 1 shows a perspective view of a household refrigerator according to the present invention. Shown here is a combination refrigerator with a

Gehäuse 1, das einen Korpus 2 mit zwei Kühlfächern, typischerweise einem Normalkühlfach und einem Gefrierfach, und zwei Türen 3, 4 zum Verschließen des Normalkühlfachs bzw. des Gefrierfachs umfasst.Housing 1, comprising a body 2 with two refrigerators, typically a normal refrigerated compartment and a freezer compartment, and two doors 3, 4 for closing the normal refrigeration compartment or the freezer compartment.

An der in der Perspektive der Fig. 1 dem Betrachter zugewandten Rückseite des Korpus 2 ist in Bodennähe ein Maschinenraum 5 ausgespart, in dem in fachüblicher Weise ein Verdichter 6 untergebracht ist. Der Verdichter 6 speist mit verdichtetem Kältemittel einen Verflüssiger 7, der hier plattenförmig und an der Rückwand des Korpus 2 über dem Maschinenraum 5 montiert dargestellt ist, der aber in kompakterer Bauform auch im Maschinenraum 5 selber Platz finden könnte. An einem Auslass des Verflüssigers 6 ist eine Magnetventilbaugruppe 8 angeschlossen, deren Aufbau und Anbringung im Maschinenraum 5 anhand der Fig. 2 bis 4 noch genauer erläutert wird. Die Magnetventilbaugruppe 8 enthält ein oder mehrere Magnetventile, die die Verteilung des im Verflüssiger 7 kondensierten Kältemittels auf (nicht dargestellte) Verdampfer des Normalkühlfachs und des Gefrierfachs steuern. In dem in Fig. 1 gezeigten Beispiel ist die Magnetventilbaugruppe in einer von einer Seitenwand und der Decke des Maschinenraums 5 begrenzten Ecke montiert (und daher großenteils verdeckt), doch versteht sich, dass grundsätzlich jede feste Oberfläche des Maschinenraums 5 und insbesondere eine Rückwand 9 desselben für die Montage der Magnetventilbaugruppe 8 in Frage kommt.At the in the perspective of Fig. 1 the viewer facing the back of the body 2, a machine room 5 is recessed near the bottom, in which a compressor 6 is housed in the usual way. The compressor 6 feeds compressed refrigerant a condenser 7, which is here shown plate-shaped and mounted on the rear wall of the body 2 above the engine room 5, but could find space in a more compact design in the engine room 5 itself. At an outlet of the condenser 6, a solenoid valve assembly 8 is connected, the construction and mounting in the engine room 5 on the basis of Fig. 2 to 4 will be explained in more detail. The solenoid valve assembly 8 includes one or more solenoid valves that control the distribution of condensed refrigerant in the condenser 7 on (not shown) evaporator of the normal refrigeration compartment and the freezer compartment. In the in Fig. 1 As shown, the solenoid valve assembly is mounted in a corner bounded by a sidewall and ceiling of the engine room 5 (and therefore largely obscured), but it is understood that basically any solid surface of the engine room 5, and in particular a rear wall 9 thereof, for mounting the solenoid valve assembly 8 can be considered.

Fig. 2 zeigt die Magnetventilbaugruppe 8 in einer vergrößerten perspektivischen Ansicht. Sie umfasst eine aus Kunststoff einteilig spritzgeformte Schale 10, die in ihrem Innern Steckplätze für zwei Magnetventile 11, 12 aufweist. Die Magnetventile 11, 12 haben hier ein im Wesentlichen quaderförmigen Körper, und an zwei einander gegenüberliegenden Wänden 13, 14 der Schale 10 sind jeweils elastisch auslenkbare Zungen 15 freigeschnitten, die ins Innere der Schale hineinragende Rasthaken 16 tragen. Die Rasthaken 16 haben abgeschrägte Stirnflächen, die beim Eindrücken der Magnetventile 11, 12 in ihre Steckplätze zunächst elastisch ausgelenkt werden, um anschließend eine Kante des Körpers der Magnetventile 12, 13 zu umgreifen und so die Magnetventile 12, 13 formschlüssig in der Schale 10 zu fixieren. Weitere ins Innere der Schale 10 hinein vorspringende Rasthaken 17 dienen der Sicherung von Rohranschlüssen 18 der Magnetventile. Fig. 2 shows the solenoid valve assembly 8 in an enlarged perspective view. It comprises a molded plastic one-piece shell 10, which has slots for two solenoid valves 11, 12 in its interior. The solenoid valves 11, 12 here have a substantially cuboidal body, and on two opposite walls 13, 14 of the shell 10 are each elastically deflectable tongues 15th cut free, carry the locking hooks 16 projecting into the interior of the shell. The latching hooks 16 have chamfered end surfaces, which are initially deflected elastically when the solenoid valves 11, 12 are pushed into their slots, in order subsequently to encompass one edge of the body of the solenoid valves 12, 13 and thus fix the solenoid valves 12, 13 in a form-fitting manner in the shell 10 , Further into the interior of the shell 10 projecting locking hooks 17 serve to secure pipe connections 18 of the solenoid valves.

In einer Aussparung der Wand 14 ist ein Steckverbinder 19 verankert. Von den hier vier Polen des Steckverbinders 19 sind je zwei dem Magnetventile 11 bzw. dem Magnetventil 12 zugeordnet und über ein Kabel 20 bzw. 21 mit dem betreffenden Magnetventil 11 bzw. 12 verbunden. Die Kabel 20, 21 sind am Steckverbinder 19 vorkonfektioniert, um gemeinsam mit diesem in die Aussparung der Wand 14 eingefügt zu werden. An ihren vom Steckverbinder 19 abgewandten Enden tragen die Kabel 20, 21 jeweils zwei Steckschuhe zum Aufstecken auf plättchenförmige Kontakte der Magnetventile 11, 12, die hier in Gehäusevorsprüngen 22 der Magnetventile 11, 12 verborgen sind.In a recess of the wall 14, a connector 19 is anchored. Of the four poles of the connector 19, two are each associated with the solenoid valves 11 and the solenoid valve 12 and connected via a cable 20 or 21 with the respective solenoid valve 11 and 12 respectively. The cables 20, 21 are pre-assembled on the connector 19 to be inserted together with this in the recess of the wall 14. At their ends remote from the connector 19, the cables 20, 21 each carry two plug-in shoes for attachment to plate-shaped contacts of the solenoid valves 11, 12, which are hidden here in housing projections 22 of the solenoid valves 11, 12.

Zwischen ins Innere der Schale 10 vorspringenden Rippen 23 und der Wand 13 sind mehrere Spalte 24 gebildet, in denen die Kabel 20, 21 geklemmt sind. So sind die Kabel 20, 21 auf ihrer gesamten Länge weitgehend unbeweglich fixiert, und es besteht keine Gefahr, dass, wenn die Baugruppe der Fig. 2 im Kältegerät montiert wird, ein Kabel ungeschützt aus der Schale 10 herausragt oder zwischen den Wänden der Schale 10 und der Wand des Maschinenraums 5 geklemmt wird.Between in the interior of the shell 10 projecting ribs 23 and the wall 13 a plurality of gaps 24 are formed, in which the cables 20, 21 are clamped. Thus, the cables 20, 21 are fixed substantially immovably over their entire length, and there is no danger that, if the assembly of the Fig. 2 mounted in the refrigerator, a cable protrudes unprotected from the shell 10 or between the walls of the shell 10 and the wall of the engine room 5 is clamped.

Die Länge der Kabel 20, 21 ist so bemessen, dass, wenn der Steckverbinder 19 in seiner Aussparung, unweit einer vom Magnetventil 12 abgewandten Stirnwand 25 der Schale 10 montiert ist, nur das Kabel 21 lang genug ist, um das Magnetventil 12 zu kontaktieren. Da es folglich nur eine Art und Weise gibt, wie die Magnetventile 11, 12 elektrisch kontaktiert werden können, sind Fehler beim Kontaktieren der Magnetventile 11, 12 ausgeschlossen.The length of the cables 20, 21 is dimensioned so that when the connector 19 is mounted in its recess, not far from a side facing away from the solenoid valve 12 end wall 25 of the shell 10, only the cable 21 is long enough to contact the solenoid valve 12. Consequently, since there is only one way in which the solenoid valves 11, 12 can be electrically contacted, errors in contacting the solenoid valves 11, 12 are excluded.

Die Stirnwand 25 trägt eine in Fig. 2 perspektivisch, in Fig. 3 in einer Draufsicht auf die Stirnwand gezeigte Rasteinrichtung 26, die zur Verankerung der Magnetventilbaugruppe 8 am Kältegerätekorpus 2 dient. Die Rasteinrichtung 26 hat in etwa die Form eines Quaders, der in Steckrichtung des Steckverbinders 19 langgestreckt und an einem von der Schale abgewandten vorderen Ende zur Erleichterung des Einführens in eine Rastaussparung des Korpus 2 verjüngt ist. Zwei Seitenwände der Quaderform sind durch von der Stirnwand 25 abstehende, radial zur Steckrichtung langgestreckte Rippen 27 gebildet. Eine Rastzunge 28 bildet eine von der Stirnwand 25 abgewandte Seite des Quaders. Die Rastzunge 28 ist nur über ihr vorderes Ende mit der Rasteinrichtung 26 verbunden und elastisch in einen Freiraum zwischen den Rippen 27 hinein auslenkbar. An ihrem rückwärtigen Ende trägt die Rastzunge 28 einen Vorsprung 29. An einer in der Perspektive der Fig. 2 vom Betrachter abgewandten Rückseite des Vorsprungs 29 ist eine Aussparung gebildet, in die ein Werkzeug, z.B. ein Schraubenzieher, eingeführt werden kann, um die Rastzunge 28 auszulenken.The end wall 25 carries an in Fig. 2 in perspective, in Fig. 3 in a plan view of the end wall shown latching device 26 which serves to anchor the solenoid valve assembly 8 on the refrigerator body 2. The latching device 26 has approximately the shape of a cuboid, which is elongated in the insertion direction of the connector 19 and at one of facing away from the shell front end to facilitate insertion into a locking recess of the body 2 is tapered. Two side walls of the parallelepiped shape are formed by ribs 27 projecting from the end wall 25 and elongated radially to the insertion direction. A latching tongue 28 forms a side facing away from the end wall 25 side of the cuboid. The latching tongue 28 is connected only via its front end with the latching device 26 and elastically deflectable into a free space between the ribs 27 inside. At its rear end, the latching tongue 28 carries a projection 29. At one in the perspective of the Fig. 2 facing away from the viewer back of the projection 29, a recess is formed, in which a tool, such as a screwdriver, can be introduced to deflect the latching tongue 28.

Fig. 3 zeigt die Schale 10 in einer Draufsicht auf die Stirnwand 25. Man erkennt eine Aussparung 30 der Stirnwand, die vorgesehen ist, um im montierten Zustand eine Rohrleitung des Magnetventils 11 aufzunehmen sowie den Steckverbinder 19, der zum Teil über den Umriss der Stirnwand 25 übersteht, um in einen komplementären Steckverbinder des Korpus 2 einzugreifen. Der Steckverbinder 19 hat hier einen in etwa würfelförmigen Grundkörper 31 aus Kunststoff, von dem mehrere Hülsen 32 abstehen, in denen sich jeweils ein metallischer Kontaktstift erstreckt. An den Grundkörper 31 ist ein zweiarmiger Hebel 33 angeformt, von dem ein Arm als Widerhaken 34 geformt ist und der andere Arm 35 durch ein in der Figur nicht sichtbares Fenster der Wand 14 zugänglich ist, um durch Schwenken des Hebels 33 den Widerhaken 34 von einer Rastkante des komplementären, korpusseitigen Steckverbinders lösen zu können. Fig. 3 shows the shell 10 in a plan view of the end wall 25. It can be seen a recess 30 of the end wall, which is provided to receive a pipe of the solenoid valve 11 in the assembled state and the connector 19, which projects beyond the contour of the end wall 25 in part to engage in a complementary connector of the body 2. The connector 19 here has a roughly cube-shaped main body 31 made of plastic, projecting from the plurality of sleeves 32, in each of which extends a metallic contact pin. To the main body 31, a two-armed lever 33 is formed, of which one arm is formed as a barb 34 and the other arm 35 is accessible through a not visible in the figure window of the wall 14 to pivot by the lever 33, the barb 34 of a Detach locking edge of the complementary, body-side connector.

Fig. 4 zeigt in einer perspektivischen Ansicht einen Ausschnitt einer aus Kunststoff geformten Auskleidung des Maschinenraums 5 mit einer Einbaunische für die Magnetventilbaugruppe 8 im Maschinenraum 5. In einer von der Decke 35 und der Seiten- oder Rückwand 9 des Maschinenraums 5 begrenzten Ecke springen drei Wandplatten 37, 38, 39 vor. Die beiden äußeren Wandplatten 37, 39 tragen jeweils zwei horizontale, spiegelbildlich zueinander orientierte Rippen 40. Zwischen den von der Rückwand 9 abgewandten Enden der Rippen 40 erstreckt sich ein Schlitz 41. Die mittlere Wandplatte 38 ist von den Abmessungen kleiner als die beiden äußeren Wandplatten 37, 39, ist aber wie die Wandplatte 39 mit Rippen 40 und einem Schlitz 41 versehen, die den entsprechenden Rippen 40 und dem Schlitz 41 der Wandplatte 37 spiegelbildlich gegenüberliegen. Zwischen den Wandplatten 37, 38 befindet sich der bereits erwähnte, zum Steckverbinder 19 komplementäre, korpusseitige Steckverbinder 42 mit vier Buchsen 43 und einem Schlitz 44, in dem der Widerhaken 34 verrastbar ist. Fig. 4 shows in a perspective view a section of a molded plastic lining of the engine room 5 with a niche for the solenoid valve assembly 8 in the engine room 5. In a bounded by the ceiling 35 and the side or rear wall 9 of the engine room 5 corner three wall plates 37, 38th , 39 before. The two outer wall panels 37, 39 each carry two horizontal, mirror image mutually oriented ribs 40. Between the rear wall 9 remote from the ends of the ribs 40 extends a slot 41. The middle wall plate 38 is smaller in size than the two outer wall panels 37th , 39, but like the wall plate 39, is provided with ribs 40 and a slot 41 which are mirrored to the corresponding ribs 40 and the slot 41 of the wall plate 37. Between the wall plates 37, 38 is the already mentioned, to the connector 19 complementary, body-side connector 42 with four sockets 43 and a slot 44 in which the barb 34 is latched.

Beim Einbau der Magnetventilbaugruppe 8 werden die Rasteinrichtungen 26 in die zwischen den Rippen 40 an den Wandplatten 37, 38 gebildeten Nuten eingeschoben, bis die Spitzen der Rasteinrichtungen 26 gegen einen Anschlag 45 stoßen und die Vorsprünge 29 ihrer Rastzungen 28 in die Schlitze 41 der Wandplatten 37, 39 einrasten und der Widerhaken 34 des Steckverbinders 19 sich im Schlitz 44 verhakt. Folglich ist die Schale 10 an drei Punkten am Korpus 2 verankert und sicher fixiert. Sie wieder zu lösen, ist nur möglich, wenn gleichzeitig durch Drücken gegen den Arm 35 der Widerhaken 34 gelöst wird und mit Hilfe eines zwischen die Wandplatten 37, 39 und die Stirnwände 25 der Schale 10 eingeführten Werkzeugs wie etwa eines Schraubenziehers die Vorsprünge 29 aus den Schlitzen 41 herausgezogen werden.When installing the solenoid valve assembly 8, the locking means 26 are inserted into the formed between the ribs 40 on the wall plates 37, 38 grooves until the tips of the locking devices 26 abut against a stop 45 and the projections 29 of their locking tongues 28 in the slots 41 of the wall panels 37th , 39 engage and the barbs 34 of the connector 19 hooked in the slot 44. Consequently, the shell 10 is anchored at three points on the body 2 and securely fixed. To solve it again, is only possible if at the same time by pressing against the arm 35 of the barb 34 is released and with the aid of a between the wall plates 37, 39 and the end walls 25 of the shell 10 imported tool such as a screwdriver, the projections 29 from the Slits 41 are pulled out.

Die mittlere Wandplatte 38 ist beim Einbau der in Fig. 2 gezeigten Magnetventilbaugruppe 8 funktionslos. Der Zweck der Wandplatte 38 liegt darin, dass sie, wenn die Maschinenraumauskleidung der Fig. 4 in einem anderen Kältegerätemodell verbaut wird, das nur ein Magnetventil benötigt, eine Magnetventilbaugruppe vom in Fig. 5 gezeigten Typ mit einer kleineren, nur einen Steckplatz aufweisenden Schale 46 zwischen den Wandplatten 37, 38 und am Steckverbinder 42 verrastet werden kann.The middle wall plate 38 is in the installation of in Fig. 2 shown solenoid valve assembly 8 functionless. The purpose of the wall panel 38 is that when the engine room lining of the Fig. 4 is installed in another refrigeration unit model, which requires only one solenoid valve, a solenoid valve assembly from in Fig. 5 shown type with a smaller, only one slot having shell 46 between the wall plates 37, 38 and the connector 42 can be latched.

BEZUGSZEICHENREFERENCE NUMBERS

11
Gehäusecasing
22
Korpuscorpus
33
Türdoor
44
Türdoor
55
Maschinenraumengine room
66
Verdichtercompressor
77
Verflüssigercondenser
88th
MagnetventilbaugruppeSolenoid valve assembly
99
Rückwandrear wall
1010
SchaleBowl
1111
Magnetventilmagnetic valve
1212
Magnetventilmagnetic valve
1313
Wandwall
1414
Wandwall
1515
Zungetongue
1616
Vorsprunghead Start
1717
Rasthakenlatch hook
1818
RohrleitungsanschlussPipe connection
1919
SteckverbinderConnectors
2020
Kabelelectric wire
2121
Kabelelectric wire
2222
Gehäusevorsprunghousing projection
2323
Ripperib
2424
Spaltgap
2525
Stirnwandbulkhead
2626
Rasteinrichtunglocking device
2727
Ripperib
2828
Rastzungecatch tongue
2929
Vorsprunghead Start
3030
Aussparungrecess
3131
Grundkörperbody
3232
Hülseshell
3333
Hebellever
3434
Widerhakenbarb
3535
Armpoor
3636
Deckeceiling
3737
Wandplattewall plate
3838
Wandplattewall plate
3939
Wandplattewall plate
4040
Ripperib
4141
Schlitzslot
4242
SteckverbinderConnectors
4343
Buchsensockets
4444
Schlitzslot
4545
Anschlagattack
4646
SchaleBowl

Claims (4)

  1. Cooling device with a first magnet valve (11), which is fastened to a housing (1) of the cooling device and is connected to electrical terminals (43) of the housing (1) via a first cable (20), wherein a tray (10; 46) covers the magnet valve (11) and the first cable (20), wherein the tray (10) also covers a second magnet valve (12), wherein the first cable (20) supports a first plug connector (19) and a second plug connector (42) which complements the first plug connector (19) is provided on the housing (1), wherein the second magnet valve (12) is connected to the first plug connector (19) via a second cable (21), wherein the first plug connector (19), the tray (10) and the magnet valves (11, 12) are connected to form a module (8), characterised in that the tray (10) has at least one locking device (26), which can be locked on the housing (10) by insertion in the plug direction of the plug connector (19) and that the first cable (20) is shorter than the shortest path between the first plug connector (19) and the second magnet valve (12).
  2. Cooling device according to claim 1, characterised in that the tray has at least one elastic locking hook (15), which engages with the magnet valve (11).
  3. Cooling device according to claim 1 or 2, characterised in that the cable between the first plug connector (19) and the magnet valve (11) is fixed at at least one point (24) to the tray (10).
  4. Magnet valve according to claim 1, 2 or 3, characterised in that the cable (20, 21) is preassembled on the first plug connector (19) and is plug-connected to the magnet valves (11, 12).
EP13774117.9A 2012-10-10 2013-10-02 A cooling device with a magnet valve Active EP2906887B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13774117T PL2906887T3 (en) 2012-10-10 2013-10-02 A cooling device with a magnet valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012218407.4A DE102012218407A1 (en) 2012-10-10 2012-10-10 Refrigeration unit with solenoid valve
PCT/EP2013/070537 WO2014056778A1 (en) 2012-10-10 2013-10-02 Refrigerator with magnetic valve

Publications (2)

Publication Number Publication Date
EP2906887A1 EP2906887A1 (en) 2015-08-19
EP2906887B1 true EP2906887B1 (en) 2019-04-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13774117.9A Active EP2906887B1 (en) 2012-10-10 2013-10-02 A cooling device with a magnet valve

Country Status (6)

Country Link
EP (1) EP2906887B1 (en)
CN (1) CN104769372B (en)
DE (1) DE102012218407A1 (en)
PL (1) PL2906887T3 (en)
TR (1) TR201906562T4 (en)
WO (1) WO2014056778A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016225721A1 (en) * 2016-12-21 2018-06-21 Robert Bosch Gmbh valve device
DE102020207645A1 (en) * 2020-06-19 2021-12-23 BSH Hausgeräte GmbH Household appliance with electronic module specifically installed in the machine room, as well as assembly method

Citations (2)

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Publication number Priority date Publication date Assignee Title
US20050173323A1 (en) * 2003-10-28 2005-08-11 Meuleners William J. Designs for filtration systems within appliances
DE102006049385A1 (en) * 2005-10-21 2007-05-24 Samsung Electronics Co., Ltd., Suwon cooling unit

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Publication number Priority date Publication date Assignee Title
US2727361A (en) * 1952-12-06 1955-12-20 Admiral Corp Refrigerator system and assembly
JPH06294577A (en) * 1993-04-08 1994-10-21 Matsushita Refrig Co Ltd Refrigerator
JPH0763473A (en) * 1993-08-26 1995-03-10 Matsushita Refrig Co Ltd Refrigerator
DE10037251A1 (en) * 2000-07-31 2002-02-14 Bsh Bosch Siemens Hausgeraete Bistable solenoid valve
US7568357B2 (en) * 2005-05-18 2009-08-04 Maytag Corporation Freeze tolerant waterline valve for a refrigerator
US20090289536A1 (en) * 2006-07-06 2009-11-26 Lg Electronics Inc. Refrigerator
DE102007029177A1 (en) * 2007-06-25 2009-01-08 BSH Bosch und Siemens Hausgeräte GmbH Cable bushing for a refrigeration device
CN101688726B (en) * 2007-06-25 2011-05-04 Bsh博世和西门子家用器具有限公司 Light/fan unit for a refrigeration device
DE102011004590A1 (en) * 2011-02-23 2012-08-23 BSH Bosch und Siemens Hausgeräte GmbH The refrigerator
DE102011004594A1 (en) * 2011-02-23 2012-08-23 BSH Bosch und Siemens Hausgeräte GmbH Refrigeration unit with compressor condenser

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050173323A1 (en) * 2003-10-28 2005-08-11 Meuleners William J. Designs for filtration systems within appliances
DE102006049385A1 (en) * 2005-10-21 2007-05-24 Samsung Electronics Co., Ltd., Suwon cooling unit

Also Published As

Publication number Publication date
WO2014056778A1 (en) 2014-04-17
TR201906562T4 (en) 2019-05-21
PL2906887T3 (en) 2019-09-30
CN104769372A (en) 2015-07-08
EP2906887A1 (en) 2015-08-19
CN104769372B (en) 2016-11-09
DE102012218407A1 (en) 2014-04-24

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