EP2593736B1 - Refrigerator device with a condenser on the backside - Google Patents

Description

The invention relates to a refrigeration appliance, in particular domestic refrigeration appliance, with a housing which encloses a heat-insulated receiving space for refrigerated goods, wherein at least one condenser is arranged on a rear side of the housing, according to the preamble of claim 1.

Both built-in refrigerators and / or built-in freezers and free-standing refrigerators and / or freezers with one or more receiving spaces for refrigerated goods within a housing are known. At the back of the housing is usually outside a so-called. Condenser, which covers a large area of the back and has at least one pipe for refrigerant. The condenser serves to re-liquefy the previously transferred in the gaseous state of matter refrigerant in thermal exchange with the room air. It is known to screw the condenser, for example, at four corners with the housing, which involves a considerable installation effort. It is also known to set the lower edge region of the condenser in a channel-like receptacle and riveting or screwing the condenser to the housing at the opposite upper edge region, wherein the rivets or screws for tolerance compensation usually pass vertically extending elongated holes of the condenser. Due to manufacturing tolerances, the lower edge of the condenser is often not fixed in the gutter, but is raised against the ground a bit, which can lead to disturbing noise, because the condenser is excited to vibrate during operation. This is perceived by the customer as disturbing, so that frequent costly customer service calls result, in which then only the condenser is pushed back down into the gutter. The cost of these "repairs" is therefore unreasonably high.

The publication EP 0 165 101 A1 relates to a fastening device for a condenser on a refrigeration device. Pipes of a condenser are plugged into fastening devices on a rear side of a refrigeration device. The fastening devices are provided on both an upper side and a lower side of the condenser. The publication EP 0 165 101 A1 discloses a refrigerator according to the preamble of claim 1.

The publication EP 1 229 292 A1 relates to a refrigerator with a housing and a device for supporting a capacitor on a housing. The support device comprises a body having a mounting portion for

Attachment to a refrigerator housing and a support portion for supporting the capacitor has. The section is over from the attachment section. The support device holds the condenser on the rear wall of the refrigerator from the side of the condenser ago.

The publication WO 03/069243 A1 relates to a fastening device for fixing a tube-wire capacitor, which is arranged at the rear of a refrigerator or freezer. The fastening device comprises a pair of legs having respective end portions disposed at T-shaped ends of the legs and having one and a widened end, respectively. The end sections are inserted between adjacent wires of the evaporator.

The invention has for its object to achieve an improvement here.

The invention solves this problem by a refrigerator with the features of claim 1. With regard to advantageous embodiments and further developments of the subject matter of the invention, reference is made to the dependent claims.

Under a refrigeration device is in particular a household refrigeration appliance understood, ie a refrigeration appliance for household management in households or possibly in the

Catering area is used, and in particular serves to store food and / or drinks in household quantities at certain temperatures, such as a refrigerator, a freezer, a fridge-freezer or a wine storage cabinet.

In a refrigeration appliance, in particular domestic refrigeration appliance, with a housing which encloses a heat-insulated receiving space for refrigerated goods, wherein at least one condenser is arranged on a rear side of the housing, the condenser is mounted on the housing in at least one clamping receptacle fixed to the housing. This clamp receptacle can in particular form a latching connection with the condenser. With the invention, a refrigeration device is provided which allows a permanently stable and vibration-damping mounting of the condenser, without increasing the assembly costs.

The condenser has an upper horizontal edge region, a lower horizontal edge region and two lateral vertical edge regions. In particular, the condenser is held with at least one of these edge regions in the clamping receptacle. By the clamping support of at least one edge region of the condenser in at least one fixed relative to the housing clamping receptacle ensures that even by lifting the device on the condenser this can not be lifted out of the holder, but his firm pinched seat, which avoids noise, maintains.

For a simple assembly, it is favorable if the clamping receptacle clamps the edge region in the horizontal direction and not in a possibly vertical pulling direction.

A particularly high degree of security against withdrawal of the condenser from the holder is made possible in that the clamping receptacle has a constrictor engaging in the condenser, which secures the captured edge region against retraction with a component in the direction of the center of the surface occupied by the condenser.

This retainer can be divided in several ways and thereby intervene in several interstices of the net-like condenser within the outer edge region. For example, in securing the lower edge region in the clamp and securing (eg, riveting) the upper edge region to the housing, lifting the condenser upwardly when lifting the device at the condenser can be effectively prevented by the retainer which inhibits upward movement or even obstruction. Even if the device is lifted on the condenser, it remains firmly secured in the clamp receptacle.

In this geometry, it is also possible that the clamping receptacle is not only formed itself as an injection molded part and bolted to the rear wall, but forms an integrally molded attachment of a larger unit, in particular advantageously a located in the lower rear area engine room, the total together with the molded on its upper end clamping bracket may be formed as an injection unit.

For stability and mounting security, it is provided that the retainer from the edge region of the condenser latching behind (with a corresponding clicking sound) is engaged. This also helps to ensure that even when lifting the unit on the condenser this can not be released from the clamp.

The frictional clamping can be carried out so that the clamping receptacle has a stop securing the edge region from the rear wall to the outside and an abutment securing the edge region against movement towards the rear wall, thereby causing the horizontal clamping. In this case, the abutment relative to the outer stop in the direction of the center of the area occupied by the condenser - so in the geometry described above - be offset.

For easy threading of the condenser and for vibration damping, it is helpful to form the abutment with an increased elastic deformability relative to the stop. Due to the elasticity, the abutment can also apply a clamping force enhancing press force in the horizontal direction to the condenser and at the same time damp its vibration relative to the housing.

A torque occurring on the condenser due to the offset in height of the abutment and the abutment can be counteracted by firmly securing it to the housing, in particular by riveting or screwing it at its edge region opposite the at least one clamping holder.

Furthermore, it is favorable to provide only one clamping holder which acts centrally on the respective edge region, so that with two fastenings of the opposite edge region a three-point holder is achieved, which is particularly insensitive to manufacturing tolerances in the form of the condenser.

Further advantages and features of the invention will become apparent from the drawing illustrated and described below embodiments of the subject invention.

Fig. 1

eine nur schematische Seitenansicht eines Kältegeräts mit einem rückseitig angeordneten großflächigen Verflüssiger, der mit seinem unteren Kantenbereich in einer Klemmhalterung gehalten ist,

Fig. 2

eine perspektivische Ansicht der Rückseite des Kältegeräts nach Figur 1,

Fig. 3

eine schematische seitliche Detailansicht der Klemmhalterung des Kältegeräts nach Figur 2, jedoch noch vor Montage des Verflüssigers,

Fig. 4

eine ähnliche Ansicht wie Fig. 3 mit zusätzlich angedeuteter Montagerichtung für den Verflüssiger,

Fig. 5

eine ähnliche Ansicht wie Fig. 4 mit eingesetztem Verflüssiger vor dessen Ausrichtung durch Drehung um eine Querachse,

Fig. 6

eine ähnliche Ansicht wie Fig. 5 nach Einschwenken des Verflüssigers in seine vertikale Endstellung durch seine Abstützung am Anschlag und am gegenüberliegenden Widerlager der Klemmhalterung,

Fig. 7

eine Einzelteilansicht der Klemmhalterung in perspektivischer Ansicht von schräg hinten und darunter von schräg vorne,

Fig. 8

die Klemmhalterung in der gleichen Perspektive wie in Fig. 7 unten, jedoch mit montiertem Verflüssiger.

In the drawing shows:

Fig. 1

a schematic side view of a refrigeration device with a large-area condenser arranged at the rear, which is held with its lower edge region in a clamp holder,

Fig. 2

a perspective view of the back of the refrigerator after FIG. 1 .

Fig. 3

a schematic side detail view of the clamp of the refrigerator after FIG. 2 but before the condenser is installed,

Fig. 4

a similar view as Fig. 3 with additionally indicated mounting direction for the condenser,

Fig. 5

a similar view as Fig. 4 with inserted condenser before its orientation by rotation about a transverse axis,

Fig. 6

a similar view as Fig. 5 after pivoting the condenser into its vertical end position by its support on the stop and on the opposite abutment of the clamp,

Fig. 7

an itemized view of the clamp in perspective view obliquely from behind and below obliquely from the front,

Fig. 8

the clamp in the same perspective as in Fig. 7 below, but with mounted condenser.

This in FIG. 1 illustrated refrigeration unit HK is a household refrigerator and may be a pure refrigerator or a pure freezer or a combination of these. It has a housing G which, by way of example only, comprises exactly two receiving spaces AR for refrigerated goods, which are closable on the front side of doors T in each case. At least one condenser V, which covers a total of a partial area F of the rear side R, is arranged on the rear side R of the refrigeration device HK. The condenser V is located on the outside of the housing G and is thus in thermal contact with the ambient air.

The condenser V comprises a conduit RL for coolant contained therein, which is here formed by way of example in horizontal meanders. This is not mandatory. Between the meanders of the pipe RL are connecting webs VS, via which the meanders of the pipe RL are stabilizingly connected to each other. These connecting webs VS are designed here as the pipe RL on both sides enclosing double webs.

Overall, the here a condenser V covers a rectangular area F, which is bounded by an upper and a lower transverse edge region OR, UR and two laterally projecting edge regions, a left edge LR and a right edge RR.

According to the invention, at least one edge region of the condenser V is held in at least one clamping receptacle K fixed relative to the housing G. Here, the lower edge region UR is held in the clamping receptacle (s) K. In this case, for example, two lateral clamping receptacles K may be provided. On the other hand, according to the drawing, exactly one transverse mount K is provided, so that a three-point mount for the condenser V results with two rivets or similar fastenings N at the top.

In the clamping receptacle K, the lower edge region UR is clamped in such a way that the force direction of the clamp acts with a component in the horizontal direction and surrounds the lower edge region UR between a stop A and an opposite abutment WL.

In the embodiment of the clamping receptacle K shown here, this has a stop A secured to the lower edge region UR of the liquefier V away from the rear wall R of the refrigeration device HK and an abutment WL securing the edge region UR against movement towards the rear wall R. In this case, the abutment WL is offset from the stop A in the direction of the center of the surface F occupied by the condenser V, here So up. This would result in a tilting tendency of the condenser V to the rear without further action, but counteract the upper fasteners N of the upper edge of the condenser OR OR V. The determination of the upper edge OR therefore supports the frictionally tight clamping clamping for the lower edge region UR, so that this is spielterfrei halterbar.

On the assembly of the condenser V initially in oblique direction will be discussed below separately.

In order not only to clamp the condenser in the horizontal direction, but also to prevent its separation with a component in the direction of the center of the area F occupied by the condenser V, ie, upwards, the clamping receptacle K has a retainer RH engaging in the condenser, which can be engaged behind by the edge region UR of the condenser, that is to say can not be grasped here. This underreaching happens here latching, since the retainer RH has on its underside a locking projection RV, so as to achieve during assembly a correctness of the mounting confirming clacking noise. The retainer RH has a nose-like overall shape in side view so as not to present an obstacle to the condenser during assembly.

Like in FIG. 8 is recognizable, the retainer RH is divided in several vertically vertically and shows several gaps between its protruding tines. While the projecting prongs engage in a plurality of interstices of the net-like condenser within the area F bounded by the outer, here lower, edge area UR, the connecting webs VS can thereby engage in the gaps. Thus, a backup against lateral movement is achieved.

During installation ( Fig. 3 to Fig. 6 ), the condenser V is first inserted obliquely from above in the direction of the rear wall R, that it is guided past the retainer RH with the lower edge UR

Subsequently ( FIG. 5 ), the condenser V is pivoted about the abutment WL as a first pivot point 1 and the upper approach of the retainer RH as a second pivot point 2 in the direction of arrow 3 by a few to a few degrees, so that it in the in FIG. 6 shown vertical end position passes while engaging with its lowest pipe RL behind the locking projection RV latching and thus kept aligned in the vertical direction.

After latching then the condenser V is on the abutment WL and the opposite stop A. The abutment WL may have a relative to the stop A increased elastic deformability by, for example, comparatively thin wing tips ( Fig. 7 ) form the abutment WL.

In order to secure the vertical position at the end of assembly, then the at least one clamping bracket K opposite edge region is firmly secured to the housing G, in particular riveted or screwed with this, so that the condenser V immovable and without the possibility of relative movement, cause the noise could, is held in the terminal receptacle K. Here, the condenser V is held by two laterally outer rivets N, so that with the one lower clamping bracket K total results in the said three-point bearing.

In FIG. 7 It can further be seen that the clamping receptacle K can be formed overall as a one-piece injection-molded part and can thereby comprise the stop A and here two abutments WL integrally in one component. Likewise, the unit shown there may also be formed as an integrally molded attachment of a larger unit and thus need no separate attachment. For example, the clamping receptacle K can be injection-molded onto an engine room MR located in the lower rear area, which makes assembly particularly easier. An attachment of the terminal receiving a separate component on this or on the rear wall R is of course possible in alternative training.

LIST OF REFERENCE NUMBERS

HK

The refrigerator

T

door

AR

accommodation space

MR

engine room

V

condenser

F

area occupied by the liquefier

RL

Pipes of the condenser

VS

Connecting webs of the condenser

K

terminal receiving

G

casing

R

rear wall

A

attack

WL

abutment

OR

upper edge area

UR

lower edge area

LR

left border area

RR

right edge area

N

clinch

RH

restrainer

RV

catch projection

1

pivot point

2

pivot point

3

pan direction

Claims (7)

1. Refrigerator device (HK), in particular domestic refrigerator device, with a housing (G) which encloses a thermally-insulating holding space (AR) for refrigerated goods, wherein on a backside (R) of the housing (G) at least one condenser (V) is arranged, the condenser (V) is retained on the housing (G) in at least one clamping holder (K) which is fixed in relation to the housing (G), the condenser (V) has an upper horizontal edge region (OR), a lower horizontal edge region (UR) and two lateral vertical edge regions (LR; RR), and the condenser (V) is retained in the clamping holder (K) with at least one of said edge regions (UR; OR; LR; RR), wherein the edge region (OR; UR; RR; LR) opposite to the at least one clamp mounting (K) is secured to the housing (G) in a permanent manner, in particular is riveted or screwed thereto, wherein the clamping holder (K) has a stop element (A) securing the edge region (UR; OR; LR; RR) from the back wall (R) outwardly and an abutment (WL) securing the edge region (UR; OR; LR; RR) against movement towards the back wall (R), wherein the clamping holder (K) has a retainer (RH) engaging into the condenser (V), which retainer (RH) secures the held edge region (UR; OR; LR; RR) against a retraction with a component in the direction of the centre of the area (F) occupied by the condenser (V), characterised in that the retainer (RH) has a latching projection (RV) on its underside, wherein the condenser (V) has reached a vertical end position and in doing so engages behind the latching projection (RV) in a latching manner with its lowermost pipeline (RL) and is thus also retained so as to be aligned in the vertical direction, wherein the condenser (V) abuts the abutment (WL) and the opposite stop element (A) following the latching, wherein the abutment (WL) is offset in relation to the outer stop element (A) in the direction towards the centre of the area (F) occupied by the condenser and the abutment (WL) has an increased elastic deformability in relation to the stop element (A).
2. Refrigerator device according to claim 1, characterised in that the clamping holder (K) surrounds the edge region (UR; OR; LR; RR) in a clamping manner in the horizontal direction.
3. Refrigerator device according to claim 1 or 2, characterised in that the retainer (RH) is divided into a plurality of intrinsic sections and engages into a plurality of intermediate spaces of the condenser (V) within the outer edge region (UR; OR; LR; RR).
4. Refrigerator device according to one of the preceding claims, characterised in that the lower edge region (UR) is secured in the clamp mounting (K) and the upper edge region (OR) is secured to the housing (G) in a permanent manner.
5. Refrigerator device according to one of the preceding claims, characterised in that the clamping holder (K) is embodied as an injection-moulded part or as an attachment, insert-moulded in one piece, of a larger component.
6. Refrigerator device according to claim 5, characterised in that the larger component is formed by a machine space (MR) lying in the lower backside region.
7. Refrigerator device according to one of the preceding claims, characterised in that there is provision for only one clamp mounting (K) engaging in the centre on the respective edge region (UR; OR; LR; RR), so that a three-point mounting for the condenser (V) is formed with the two fasteners (N) of the opposite edge region (OR; UR; RR; LR).

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