EP2347200B1 - Household cooling device with a machine room - Google Patents

Description

The invention relates to a household refrigerator with at least one machine room for accommodating one or more units involved in the cooling capability of the household refrigerating appliance according to the preamble of claim 1.

There are both built-in refrigerators and / or freezers and stand alone fridge and / or freezers, which are all summarized here under the term household refrigeration appliance, with a located below and / or back of one or more receiving spaces for cooling Good engine room known. This serves to receive at least one, preferably cooperating with the cooling, aggregate, in particular for receiving a relatively large-volume compressor, and is usually open at least on one side for a good exchange with the ambient air.

It is also known to specify such an aggregate at bearing points, for example via feet, at the bottom of the machine room. Such feet can even be bolted to the ground, which means a considerable installation effort, or a retaining bar, the feet over and under the ground, clamped. Then, however, the fixing of the retaining strip on the ground nor their screwing to the bottom or another abutment of the housing is required, so that again here a considerable assembly time is incurred and in addition matching screws must be kept.

The EP 0 957 323 A2 discloses a cooling device with a support means for supporting a compressor. The suspension element is fastened by means of screws. A household refrigerator according to the preamble of claim 1 is in the document EP 0957323 A2 be revealed.

The US 2 257 374 A discloses a refrigerator with a compressor disposed on a base plate and screwed to the base plate transverse bars.

The EP 0 126 956 A2 discloses a method for installing a motor compressor in a niche of a refrigerator. For this purpose, a holding plate is inserted into the niche, on which the compressor is loosely put on. The retaining plate is first inserted into the niche and then removed.

The invention is based on the problem of achieving a simplification of assembly.

The invention solves this problem by a household refrigerator with the features of claim 1. With regard to advantageous refinements and developments of the subject matter of the invention and its advantages, reference is made to the further claims 2 to 13.

By the invention, neither a screwing of feet of an aggregate, such. a compressor, with the bottom of the engine room still only a screwing a retaining strip that holds feet of an aggregate on this floor, required. Their mounting is done solely by positive locking, which can be achieved for example by a simple click behind a locking projection. The assembly is thereby considerably simplified and accelerated. Personnel costs can be reduced. Additional parts, such as screws, which can be lost over time, are dispensable from the start.

If the elongate retaining strip at its first longitudinal end according to an advantageous embodiment of the invention, a retaining web for positive engagement behind an abutment of the housing and the other end, i. has at its second longitudinal end a recess for positive locking on a Rastanformung of the housing, the mounting of the securing retaining strip can be done in an advantageous manner by simple pressure movements. So it can very easily a desired position of the respective position to be secured aggregate, which automatically secures the correct adjustment, in particular be enabled by the holding web is inserted into the recess, for example, up to a stop, and subsequently the retaining strip to this connection in a horizontal plane is pivoted, so that it is locked without further alignment measures the retaining strip on the Rastanformung.

In particular, a Rastanformung be optically unobtrusive and mechanically advantageous associated with the bottom of the machine room, for example, lie on a lateral end of this floor and thus secure a lateral end of the retaining strip. Advantageously, the Rastanformung extends from the ground pointing downwards and thus allows the formation of a retaining abutment for the at least one base in the upper part holding bar.

Advantageously, the size dimensions of the Rastanformung, in particular latching lug, with respect to the Rastanformungsfläche and / or latching nose height selected such that a secure fixation of the retaining strip can be ensured on the housing. A stable mechanical support is advantageously ensured if the Rastanformung viewed in plan view is formed in particular rectangular. For this purpose, it may preferably occupy, for example, an area of at least five square centimeters. Next is It is particularly advantageous if this surface takes the form of a rectangle lying approximately parallel to the housing outer edge of the machine room in order to prevent the extract of the retaining strip over the extension of the longitudinal edges can. In general terms, this Rastanformung thus forms a crossbar against a horizontal extension or movement direction of the position to be secured aggregate.

The retaining strip itself may be metallic, for example as a steel profile, formed according to an expedient development of the invention for a high mechanical stability, and still allow the bottom itself is formed of weight-saving plastic. For a high stability, this may advantageously be reinforced constructively, in particular by the formation of ribs or the like.

In operation, it proves to be noise and vibration retardant when the unit has one or more feet, which are held in an advantageous manner to associated vibration dampers as bearings.

According to an expedient development of the invention, at least part of the one or more bearing points overlapped with the standing on them feet with at least one grip part of the retaining strip, the bottom of the machine room at least in a machine room entrance side edge zone over the opening width of the engine room considered on a partial width or overall width with at least one under-grip part under attack and the respective located between the respective over-grip part and associated under-grip part of the retaining strip bearing point be subjected to clamping force. It can therefore very advantageous overlapped by the retaining strip at least a portion of one or more bearings with the upstanding feet on them and at the same time the bottom of the engine room are partially or completely under attacked with at least one under-grip part. The intervening bearings can be forcefully clamped in their rubber-like design interpretation and thus provide the necessary restoring force to securely hold the retaining strip on the housing, in particular at the bottom of the engine room.

A particularly simple construction provides according to a further advantageous embodiment of the invention, that several, in particular four bearing points for a Aggregate, for example, a compressor, are provided, of which a first group of several with respect to the housing inwardly located bearings, in particular two with respect to the housing inwardly located bearings in shoe-shaped receptacles of the bottom against a pull-out or lifting movement and a second group of several outwardly located bearings, in particular two outwardly located bearings, are secured by the retaining bar against a pull-out or lifting movement. The backup in the inner shoe-shaped receptacles is then carried out in an advantageous manner solely by pushing the unit, without it being necessary to provide further securing means. The outer bearings then hold in an advantageous manner the feet of the unit located thereon also without further securing means alone by clamping the retaining strip. The retaining strip thus acts as a crossbar or securing bracket, which has at least one locking element for locking with a corresponding counter element on the housing.

Further advantages of the invention and its developments are explained in more detail with reference to drawings.

Fig. 1

ein Haushaltskühlgerät in schematischer Seitenansicht mit einem in dieser Ansicht von außen eigentlich nicht sichtbaren und daher nur gestrichelt eingezeichneten Maschinenraum,

Fig. 2

ein Haushaltskühlgerät mit einem nach hinten offenen Maschinen-raum wie in Figur 1 in Ansicht von hinten,

Fig. 3

eine Einzelteilansicht eines im Maschinenraum anzuordnenden Aggregats, hier eines Verdichters, der über Standfüße am Boden des Maschinenraums halterbar ist,

Fig. 4

eine Ansicht von hinten in den offenen und hier noch unbestückten Maschinenraum,

Fig. 5

eine Teilansicht des Maschinenraums nach Figur 4, nämlich des Bodenbereichs, nach Einbringen eines Verdichters und während der Montage eine vorteilhafte Ausführungsvariante einer erfindungsgemäß konstruierten Halteleiste bzw. -schiene,

Fig. 6

eine Ausschnittsansicht des auf dem Boden des Maschinenraums gehaltenen Verdichters vor Montage der ihn sichernden Halteleiste von Figur 5,

Fig. 7

eine Ansicht von schräg unten auf den Maschinenraum mit darin angeordnetem Verdichter während der Montage der Halteschiene vor ihrer Festlegung an einer vorteilhaft ausgebildeten Rastanformung am Unterboden des Maschinenraums der Figuren 1 mit 6,

Fig. 8

eine ähnliche Ansicht wie Figur 7, jedoch nach Festlegung der Halteleiste an der Rastanformung und dadurch klemmender Halterung der Standfüße des Verdichters,

Fig. 9

einen Schnitt durch den Maschinenraum und die daran anmontierte Halteleiste der Figur 5, 7 und 8,

Fig. 10

eine perspektivische Einzelteilansicht der Halteleiste der Figuren 5, 7, 8, 9, und

Fig. 11

eine Ansicht der Halteleiste aus der Richtung, die in montierter Stellung dem Maschinenraum zugewandt ist.

Each show schematically:

Fig. 1

a domestic refrigerator in a schematic side view with a in this view from the outside actually not visible and therefore only dashed line engine room,

Fig. 2

a household refrigerator with a machine room open to the rear as in FIG. 1 in view from behind,

Fig. 3

an itemized view of an assembly to be arranged in the engine room, here a compressor, which can be supported on feet on the floor of the engine room,

Fig. 4

a view from the back into the open and here still empty engine room,

Fig. 5

a partial view of the engine room after FIG. 4 , namely the bottom region, after introduction of a compressor and during assembly, an advantageous embodiment variant of a retaining strip or rail constructed according to the invention,

Fig. 6

a sectional view of the held on the floor of the engine room compressor before mounting the retaining strip of it securing FIG. 5 .

Fig. 7

a view obliquely from below on the engine room with compressor arranged therein during assembly of the support rail before its attachment to an advantageously formed Rastanformung on the underbody of the engine room FIGS. 1 with 6,

Fig. 8

a similar view as FIG. 7 but after fixing the retaining strip to the Rastanformung and thereby clamped mounting the feet of the compressor,

Fig. 9

a section through the engine room and attached thereto retaining strip of the FIG. 5 . 7 and 8th .

Fig. 10

an itemized perspective view of the retaining strip of Figures 5 . 7 . 8th . 9 , and

Fig. 11

a view of the retaining strip from the direction that faces the engine room in the mounted position.

Elements with the same function and mode of action are in the FIGS. 1 11 each provided with the same reference numerals.

This in FIG. 1 shown household cooling device HK has a housing G, which includes, for example, a room for cooling and a freezer compartment. These can be closed by a common door or - as here - by several doors. Also, more cold rooms or the formation of only a refrigerator or freezer is possible. The household refrigerator can thus also be a pure freezer.

In the lower area and on the rear side, the housing G is provided with a machine room MR for receiving one or more units AG serving for cooling, in particular a compressor, as shown in the drawing. The machine room MR may be an integral part of the housing G or may be formed by, for example, a one-piece plastic molded part introduced therein, which is mounted on walls of the housing G. Even then, the engine room itself can be considered a part of the housing G. The plastic may be formed, for example, by a TPE ("thermoplastic elastomer"). Optionally, a fiber reinforcement is possible.

The unit AG can be supported on a floor B of the machine room MR. For this purpose, the unit AG on two laterally mounted feet SF, which are advantageously held on one or more vibration dampers VD. These serve as bearings LS for supporting the unit AG with respect to the ground B. The feet SF of the compressor are according to the FIG. 3 as a lateral, in the depth direction of the engine room extending flanges of the unit, in particular compressor, integrally formed on this or welded to the housing.

In order to prevent that so standing on the vibration dampers VD unit AG can move with a horizontally outwardly facing and / or vertically upward directional component, for example, during transport, a retaining strip HL is provided to secure the unit AG, at least a part of the bearings LS overlaps with the upstanding feet SF with an overlap part OF and at the same time engages under the bottom B of the engine room MR with a lower grasping part UF, so that the located between the lower grasping part UF and the overlapping part OF bearings LS are subjected to force and by their elasticity exercise a vertical force such that the feet of the unit AG are pressed firmly from below against the retaining strip.

In the embodiment shown here four bearing points LS are provided with vibration dampers VD for the unit AG by way of example. As in the FIGS. 4 to 6 are two, with respect to the housing G inwardly located, on both sides of the unit AG arranged bearing points LSe inserted into shoe-shaped receptacles A of the engine room MR, so that they are secured there against a lifting movement upwards. In order to secure this against a pull-out movement to the rear from the receptacles A of the engine room MR out and against tilting, the unit AG is further on two outward, especially at the rear edge, located on both sides of the aggregate bearing LSa by the retaining strip HL against secured a pull-out or lifting movement. The inner bearings LSe are thus secured solely by inserting the compressor without further assembly steps. The shoe-shaped receptacles A can be formed as an integral part of a one-piece engine room, for example an injection-molded part.

At the outer bearings LSa the aggregate AG on the retaining strip HL to be attached is securable. In this case, according to the invention, the retaining strip HL is fastened to the housing G so that it can not be screwed or positively locked, in which case the machine room MR, irrespective of its concrete design, is considered part of the housing. The retaining strip HL is dimensionally stable in itself and, for example, metallic and folded several times around a longitudinal edge in an approximately C-shaped or U-shaped profile cross-sectional shape. As a result, in the upper part, an upper flange or leg is formed as an overlapping part OF, which overlaps in the mounted position, the bearings LS and the feet SF, whereas a lower flange engages under the bottom B of the engine room MR as the lower grip part UF.

To make the assembly as simple as possible, extending over the width of the machine room MR holding strip HL at a first longitudinal end a holding web HS for positive engagement in an abutment W of the housing G. At the other end, ie at the opposite end of the retaining strip HL this is provided with at least one - here exactly one - recess AN. This is arranged on a horizontal, lower flange UF of the retaining strip HL. This recess AN is used for positive locking on a downwardly projecting Rastanformung RA of the housing G. The mounting of the retaining strip can be done by machine, but also very quickly by hand and thus with only a small amount of personnel. In particular, the recess AN is provided on the underside of the retaining strip HL at a position r, which corresponds to the local position of the Rastanformung RA in the Rastendposition the retaining strip.

In this embodiment, the retaining strip HL can be inserted to its mounting with the retaining web HS in the housing-side abutment W, so that this end is secured against a horizontal extension. To the resulting with this compound pivot bearing the retaining strip HL is then pivoted in a horizontal plane in the direction of the introduced into the machine room MR unit AG and latched at the end of the pivoting movement with its opposite, free longitudinal end of the Rastanformung RA. As a result, the retaining strip HL then sits automatically in a positive, permanent securing position without the need for a screw connection. It forms a holding or locking bracket for the unit against its possible movement in the horizontal and / or vertical direction.

For this purpose, the Rastanformung RA is assigned to the bottom B of the engine room MR at a location spaced from the abutment W point. It is preferably in the lateral direction, i. over the clear width or width of the machine room offset from the abutment W, in particular in the region of the abutment opposite end portion of the retaining strip HL. The Rastanformung RA points from the bottom B downwards, so that during the assembly pushed under the bottom B lower flange or leg UF of the retaining strip HL with its recess AN underneath the Rastanformung RA and snaps behind it. In particular, for the Rastanformung, in particular locking lug a height of more than 3mm appropriate. Their height is generally considered chosen so that the retaining strip can be attached in a secure manner to the housing and is reliably held there by the at least one positive locking connection. The Rastanformung RA typically extends a few millimeters to about one or two inches down. It can be easily formed integrally with the bottom B manufacturing technology.

The Rastanformung RA takes in plan view a rectangular area, in particular of at least five or advantageously more square centimeters, to allow a reliable positive locking of the retaining strip HL at this. In particular, it has a substantially cuboid geometry shape spatially. Here in the embodiment, the latch has a rectangular shape of about 7 mm times 20 mm area. Appropriately, the size dimensions of the locking lug with respect to the Rastanformfläche and / or latch height are chosen such that a secure fixation of the retaining strip can be ensured on the housing. Advantageously, the Rastanformung RA in plan view a rectangular outline shape, so that a long side of the rectangle with several centimeters in length can be engaged behind by the inner edge of the recess AN ( FIG. 8 ) and against extract of the retaining strip HL is effective. The surface and shape of Rastanformung RA suitably correspond at least almost the surface and shape of the recess AN of the retaining strip HL, so as to ensure a substantially backlash-free support of the retaining strip HL. A conventional bore BO, as in FIG. 7 is still drawn on the edge of the bottom B, no longer needs to be used for the introduction of a fixing or fastening screw in the end face for the attachment or fixing the retaining strip HL. Such a bore BO is thus completely unnecessary.

This also contributes to the fact that the soil B constructive in spite of its possible lightweight and cost-effective training plastic, in particular by forming ribs R ( FIG. 7 . 8th ) or the like, and thus a deformation of Rastanformung RA, which could lead to a release of the latched retaining strip HL, prevents.

LIST OF REFERENCE NUMBERS

HK

Household refrigerator,

MR

Engine room,

AG

Physical,

G

Casing,

B

Floor of the engine room,

LS

Depository,

LSe

inward locations,

LSA

outlying campsites,

HL

Retaining strip,

HS

Holding web,

A

Admission,

VD

Vibration damper,

AT

Recess of the retaining strip,

UF

lower flange of the retaining strip,

RA

Rastanformung of the soil,

W

Abutment,

BO

drilling

Claims (13)

1. Household refrigeration appliance (HK) having at least one housing (G), which in the lower region comprises a machine chamber (MR) to accommodate one or more units (AG), in particular a compressor, used for cooling, wherein the household refrigeration appliance (HK) has at least one unit (AG), which is supported indirectly or directly on one or more support points (LS) on a base (B) of the machine chamber (MR), characterised in that the at least one unit (AG) is secured in place against movement in a horizontally outward and/or vertically upward direction by means of a retainer strip (HL) passed over at least one support point (LS),
   wherein the retainer strip (HL) is held on the housing (G) in a screwless and form-fit manner.
2. Household refrigeration appliance according to claim 1,
   characterised in that
   the retainer strip has a retainer web (HS) at one end for a form-fit engagement behind a counter-bearing (W) of the housing (G).
3. Household refrigeration appliance according to one of claims 1 or 2, characterised in that
   the retainer strip (HL) has at least one cutout (AN) at the other end for a form-fit latching onto at least one assigned moulded latch (RA) of the housing (G).
4. Household refrigeration appliance according to claims 2 and 3,
   characterised in that
   to assemble the retainer strip (HL) its end retainer web (HS) can be introduced into a cutout in a counter-bearing (W) and the retainer strip (HL) can then be pivoted in about this connection between its retainer web (HS) and the counter-bearing (W) in a horizontal plane and can be latched to the moulded latch (RA).
5. Household refrigeration appliance according to at least one of claims 3 or 4,
   characterised in that
   the moulded latch (RA) is assigned to the base (B) of the machine chamber (MR).
6. Household refrigeration appliance according to claim 5,
   characterised in that
   the moulded latch (RA) extends down from the base (B) of the machine chamber (MR).
7. Household refrigeration appliance according to one of claims 3 to 6,
   characterised in that
   the moulded latch (RA) has an essentially rectangular contour configuration when viewed from above.
8. Household refrigeration appliance according to at least one of the preceding claims,
   characterised in that
   the retainer strip (HL) is configured essentially of metal.
9. Household refrigeration appliance according to at least one of the preceding claims,
   characterised in that
   the base (B) is configured from plastic and is reinforced structurally, in particular by the configuration of ribs (R) or the like.
10. Household refrigeration appliance according to at least one of the preceding claims,
    characterised in that
    the retainer strip (HL) features a U-shaped or C-shaped cross-sectional profile.
11. Household refrigeration appliance according to at least one of the preceding claims,
    characterised in that
    the respective unit (AG) features one or more feet (SF), which are held on one or more vibration dampers (VD) as support points (LS).
12. Household refrigeration appliance according to claim 11,
    characterised in that
    the retainer strip (HL) is passed over at least some of the one or more support points (LS) with the feet (SF) positioned thereon with at least one top part (OF), at least one bottom part (UF) is passed below the base (B) of the machine chamber (MR) at least in a peripheral zone on the machine chamber entrance side over part of or the entire width when viewed over the width of the opening of the machine chamber and a clamping force is applied to the support point (LS) located respectively between the respective top part (OF) and the assigned bottom part (UF) of the retainer strip (HL).
13. Household refrigeration appliance according to at least one of the preceding claims,
    characterised in that
    four support points (LS) are provided for a unit (AG), of which two support points (LSe) located inward in relation to the housing (G) are secured in place in shoe-type holders of the base (B) against an outward or lifting movement and two outward support points (LSa) are secured in place by the retainer strip (HL) against an outward or lifting movement.

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