EP2457038B1 - Refrigeration appliance, in particular domestic refrigeration appliance comprising a fastening arrangement for a compressor - Google Patents

Description

The invention relates to a refrigeration appliance, in particular domestic refrigeration appliance, comprising a housing with a machine room, in which a compressor is connected via at least one damping element to the housing by a fastening arrangement.

From the DE 295 07 374 U1 is a refrigeration device with a machine compartment for receiving a refrigerant compressor is known which is equipped with support plates which rest with the interposition of damping bodies on a support rail arranged in the machine compartment, which has by the damping body and the support tabs cross tongues, which for fixing the compressor to the support rail interact with a provided on the damping bodies counter bearing. The attachment of the compressor in the engine room is done by a separate sheet metal part. This sheet metal part consists of galvanized sheet steel and is manufactured in a follow-on tool. During compressor assembly, this sheet metal part is fastened to the machine room. JP55069680U and DE29801207U1 disclose a device for mounting a compressor on a compressor carrier. The object of the invention is to provide a refrigeration appliance, in particular household refrigeration appliance, with an improved fastening arrangement.

The object is achieved by a refrigerator, in particular domestic refrigeration appliance, comprising a housing in which a compressor via at least one compressor support element and a damping element is connected to the housing by a fastening arrangement comprising at least one clamping piece, which is connected to the damping element and between two wall sections of the housing is inserted.

A separate sheet metal part can be completely eliminated. The rubber feet and the compressor remain unchanged. The machine room can be changed as described below and it can, for example, three, in particular two planned and a spare pins, in particular plastic pins are molded onto the housing.

To facilitate the mounting of the compressor insertion aids may be provided in the engine room, which may already be molded with. These insertion aids can be designed so high that the feet have a minimum distance to the ground when inserted and, for example, slide two compressor support elements, in other words, foot rails or compressor support rails of the compressor on the insertion. Only when the compressor is fully inserted, it sits on the damping rubber elements.

For example, two resiliently executed hold-down or wall sections may also be molded. The distance between the lower edge of the blank holder and the bottom of the housing can be equal to the height of the rubber feet in the rear of the machine room. In the front area, the distance can be made slightly larger. In the following example three possible variants are shown:
In a first variant, two pins are broken off over a predetermined breaking point in the engine room and pressed from above into the already mounted rear rubber feet. When inserting the compressor via the insertion aids first dive the leading feet without inserted pins in the hold. Due to the recess of the hold-down in the front area, the feet have no contact with the engine room. Shortly before reaching the final position, the rear feet sit backlash-free between hold-down and floor. When inserting the rear feet with mounted pins in the hold-down on a slope, the pins are based on the top of the down and down at the bottom. By a length excess of the pins spring down the springs. Shortly before reaching the end position of the compressor, the pins immerse in holes in the bottom of the engine room. The hold down springs down and press on the rear rubber feet. In this variant, a groove for guiding and supporting the pin may additionally be attached to the hold-down.

In a second variant, the pins are also pressed from above into the feet. The holes for latching the pins are located in the bottom of the machine room or on a lower wall portion of the housing and in the hold-downs or on an upper wall portion of the housing. This improves the leverage and the groove in the hold-down for guiding the pin can be omitted. Depending on the selected Spigot length is a catch only at the top of the hold or in addition still in the bottom of the engine room.

In a third variant, the two pins are pressed from below into the rubber feet. The holes for latching can be located in the hold-downs. To support and guide the pin can be provided in the lower part of a groove.

To disassemble the compressor, the hold-downs are lifted with a tool and the pins are removed from the holes.

With the embodiments according to the invention, a saving of material and time during assembly can result from the omission of the separate sheet metal part. In addition, a mounting relief can result from the insertion of the engine room.

The clamping piece may have a pin penetrating the damping element, the upper pin end portion of which is connected to the first wall portion of the housing and / or the lower pin end portion of which is connected to the second wall portion of the housing. The pin may extend in the direction of the axial extent of the clamping piece. By inserting the pin into a bore of the damping element, the clamping piece is positively connected to the damping element. Separate fasteners can be omitted in this respect.

In this case, the upper pin end portion and / or the lower pin end portion can be positively locked in a recess in one of the wall portions of the housing. By engaging the upper pin end portion and / or the lower pin end portion in the recess or the recesses, the damping element is fastened together with the clamping piece to the housing.

The upper pin end portion and / or the lower pin end portion may be frictionally held by means of a resilient wall portion on the first or second wall portion of the housing force or friction.

In all variants of the invention, the clamping piece may have a particular plate-shaped top plate, which in the mounting position on the first or second

Wall section of the housing force or frictionally applied. The top plate ensures a vertical mounting position with respect to the wall sections and forms a large bearing surface for the non-positive or frictional attachment.

Such a clamping piece may have, on its end facing the first or second wall section of the housing, the top plate, which carries a nose which is positively locked in the mounting position in a recess of the first wall section or of the second wall section of the housing. The top plate need not be flat, but may have a projection that forms a spigot end portion or a nose.

The opposite wall portions of the housing can be assigned a running in the direction of insertion guide groove for the top plate. The guide facilitates insertion and ensures a plane-parallel insertion of the clamping piece.

In all variants according to the invention, the first wall section and the second wall section delimit a gap whose clear height in the region of an insertion opening of the gap corresponds at least to the length of the clamping piece or the pin and in the region of the mounting position of the leading in the insertion direction damping element less than or equal to the height of is relaxed damping element. Thus, a field-elastic spreading of the two wall sections is generated and held in the mounting position, the clamping piece form fit.

In general, a support structure may be arranged on a base assigned to the housing, which is designed to hold the compressor, in particular the compressor together with the at least one preassembled clamping piece or pin, at a distance from the bottom during insertion of the compressor into its mounting position. The support structure can additionally or alternatively ensure a guidance of the compressor support elements in the direction of insertion during assembly.

Such a support structure can be formed by at least one, in particular by two protruding from the bottom up ridges. The strips can for example be made of plastic and molded to the bottom of the housing.

In this case, the at least one upwardly projecting bar have a height at which the at least one compressor support element is seated on the bar so that the damping element, in particular together with the clamping piece is held during insertion of the compressor in its mounting position at a distance from the ground.

The strip can end in the direction of insertion before reaching the mounting position or be designed reduced in its height so that the damping element, in particular sits together with the clamping piece in the mounting position on the floor.

• Bereitstellen eines Verdichters, aufweisend wenigstens ein Verdichtertragelement mit Füßen, sowie erste und zweite Dämpfungselemente;
• Verbinden eines Klemmstücks mit mindesten einem zweiten Dämpfungselement;
• Einschieben des Verdichters in den Maschinenraum des Gehäuses in Montagerichtung derart, dass vorauslaufende Füße zusammen mit ihren ersten, insbesondere klemmstücklosen Dämpfungselementen zwischen zwei Wandabschnitten des Gehäuses durch Gleiten der auf einer Tragstruktur aufsitzenden Verdichtertragelemente, insbesondere zwei von dem Boden nach oben vorspringenden Leisten, zunächst in einem Abstand zum Boden des Gehäuses geführt werden, bis die Verdichtertragelemente in der erreichten Montageposition von den Leisten abkommen, so dass die vorauslaufenden Füße mit den ersten Dämpfungselementen auf dem Boden des Gehäuses aufsitzen.

A method according to the invention for mounting a compressor in a housing of a refrigerating appliance, in particular household refrigerating appliance, can have the following steps:

• Providing a compressor, comprising at least one compressor support element with feet, and first and second damping elements;
• Connecting a clamping piece with at least one second damping element;
• Insertion of the compressor in the machine room of the housing in the mounting direction such that leading feet together with their first, in particular Klemmemmlosen damping elements between two wall sections of the housing by sliding the mounted on a support structure compressor support elements, in particular two projecting from the bottom strips, first in one Distance to the bottom of the housing to be performed until the compressor support elements come off in the mounted mounting position of the strips, so that the leading feet sit with the first damping elements on the bottom of the housing.

An additional step of the assembly method may provide that the clamping piece connected to the second damping element is provided on a trailing foot and has a size by which a clear height of a gap space of the two wall portions of the housing in the region of an insertion opening during the insertion of the compressor resiliently spread is and upon reaching the mounting position, at least one pin end portion of the clamping piece in a recess the first wall portion and / or the second wall portion latched so that the spread-wall sections relax resiliently and the leading, in particular pinchless feet are clamped with the first damping elements between the wall sections.

A further step for one of the assembly methods according to the invention can provide that the at least one clamping piece is provided integrally with the housing via at least one predetermined breaking point and is broken off from the housing before the clamping piece is attached to an associated second damping element.

An exemplary embodiment of the invention is based on the FIGS. 1 to 6 described. From the detailed description of this specific embodiment, there are also other general features and advantages of the present invention.

Figur 1

eine perspektivische Ansicht eines beispielhaften Kältegeräts mit einem Maschinenraum für einen Verdichter;

Figur 2a

eine perspektivische Teilansicht eines Gehäuseabschnitts des Kältegeräts mit einer erfindungsgemäßen Befestigungsanordnung vor der Montage;

Figur 2b

eine perspektivische Teilansicht des Gehäuseabschnitts gemäß Fig. 2a mit der Befestigungsanordnung während der Montage mit entspanntem Wandabschnitt;

Figur 2c

eine perspektivische Teilansicht des Gehäuseabschnitts gemäß Fig. 2a mit der Befestigungsanordnung während der Montage mit federvorgespanntem Wandabschnitt;

Figur 2d

eine perspektivische Teilansicht des Gehäuseabschnitts gemäß Fig. 2a mit der Befestigungsanordnung in der endgültigen Montageposition;

Figur 3

eine vergrößerte perspektivische Teilansicht des Gehäuseabschnitts gemäß Fig. 2a mit einem Ausbruch, der einen Rücksprung in dem oberen Wandabschnitt zeigt;

Figur 4

eine vergrößerte perspektivische Teilansicht des Gehäuseabschnitts gemäß Fig. 2a mit einem Ausbruch, der einen Rücksprung in dem unteren Wandabschnitt zeigt;

Figur 5

eine perspektivische Teilansicht des Gehäuseabschnitts gemäß Fig. 2a im Bereich des Maschinenraums mit erfindungsgemäßer Tragstruktur und zusätzlicher Führungsnut;

Figur 6

eine perspektivische Teilansicht des Gehäuseabschnitts mit einem erfindungsgemäß angeformten Klemmstück.

Show it:

FIG. 1

a perspective view of an exemplary refrigeration device with a machine room for a compressor;

FIG. 2a

a partial perspective view of a housing portion of the refrigerator with a mounting arrangement according to the invention prior to assembly;

FIG. 2b

a partial perspective view of the housing portion according to Fig. 2a with the mounting arrangement during assembly with relaxed wall section;

Figure 2c

a partial perspective view of the housing portion according to Fig. 2a with the mounting assembly during assembly with spring-biased wall portion;

Figure 2d

a partial perspective view of the housing portion according to Fig. 2a with the mounting assembly in the final mounting position;

FIG. 3

an enlarged partial perspective view of the housing portion according to Fig. 2a with an eruption showing a rebound in the upper wall portion;

FIG. 4

an enlarged partial perspective view of the housing portion according to Fig. 2a with an eruption showing a rebound in the lower wall portion;

FIG. 5

a partial perspective view of the housing portion according to Fig. 2a in the area of the machine room with inventive support structure and additional guide groove;

FIG. 6

a partial perspective view of the housing portion with a molded according to the invention clamping piece.

An in Fig. 1 exemplified refrigeration device 1 has a body 2 with an inner container 3. The inner container 3 is divided into a freezer compartment 4 arranged at the top and a cooling compartment 5 arranged at the bottom. The freezer compartment 4 is generally used for freezing frozen food at about minus 18 degrees Celsius. The freezer compartment 4 is associated with a first evaporator 6, which is arranged behind a freezer compartment rear wall 7. The freezer compartment 4 is accessible when the freezer compartment door 9 is open. To open, the freezer compartment door 9 has a first handle 10.

The cooling space 5 is generally used for frost-free cooling of refrigerated goods, preferably at temperatures between plus 4 and plus 8 degrees Celsius. However, the cooling space 5 can also be designed as a zero-degree compartment, in particular for keeping fruit or vegetables fresh. The refrigerator compartment 5 has a rear wall 11, behind which the first evaporator 6 for the freezer compartment 4 is arranged. A second evaporator 12 serves to cool the cooling space 5. The cooling space 5 is accessible when the refrigerator door 14 is open. To open the refrigerator door 14 has a second handle 15.

A single evaporator, or the first evaporator 6 and the second evaporator 12, or any number of evaporators may be connected to a compressor 8. The compressor 8 is inserted from the back, ie behind the rear wall 11 of the refrigeration device 1 into a machine room 13 of the housing 16. The attachment of the compressor 8 in the engine room 13 or in the housing 16 of the refrigeration device 1 by means of a fastening arrangement 17, as shown in a partial view of a portion of the housing 16 in Fig. 2a is shown.

In Fig. 2a the fastening arrangement 17 is shown in more detail. The fastening arrangement 17 has one or more compressor support elements 18. In the illustrated embodiment, the compressor 8 is mounted by means of two compressor support elements 18 in the engine room 13 of the housing 16. In the Fig. 2a an example of one of the two compressor support elements 18 is shown. The compressor support member 18 has two receiving bores 19a and 19b, in which the compressor 8 is fixed. The compressor support element 18 may be firmly connected to the compressor 8 so far. At the compressor support member 18, two damping elements 20a and 20b are mounted. The damping elements 20a and 20b may be made of an elastomer and in particular rubber feet, which are received positively in recesses of the compressor support member 18. In the exemplary embodiment, the damping elements 20a and 20b bores 21a and 21b. As in Fig. 2a is shown in the bore 21a of the damping element 20a, an inventive clamping piece 22 is inserted. The clamping piece has in the example shown a plate-shaped head plate 23, to which a pin 24 connects. The top plate 23 is designed circular disk-shaped. The top of the top plate 23 forms an upper pin end portion 26. From the center of the circular disk-shaped bottom surface of the top plate 23 extends in the axial direction of the pin 24 downwards. The pin 24 may be cylindrical and in particular at its lower pin end portion 25 have a chamfer or slightly tapered. In the final assembly position ( Fig. 2d ), the upper pin end portion 26 is connected to a first wall portion 27 of the housing 16 and the lower pin end portion 25 is connected to a second wall portion 28 of the housing 16. The clamping piece 22 or the pin 24 is used between the two wall sections, ie the first wall section 27 and the second wall section 28. The upper pin end portion 26 is so far connected via the top plate 23 with the first wall portion 27. On the upper side of the top plate 23 may also be formed a pin-like, in particular short nose, which engages in a recess on the underside of the first wall portion 27.

First, the clamping piece 22 and the pin 24 is inserted into the damping element 20a in the vertical direction of the arrow and then the compressor support member 18 in the horizontal direction of the arrow between the first wall portion 27 and the second wall portion 28 of the housing 16, as in Fig. 2b shown, inserted. During the assembly process, the compressor 8 together with the example. Two compressor support elements 18th as a preassembled module inserted between the wall sections 27 and 28. For a better overview is in the FIGS. 2a to 2d the attached to the compressor support elements 18 compressor 8 hidden.

Once not only the top plate 23 of the clamping piece 22 under the first wall portion 27, as in Fig. 2b is placed, but also, as in Fig. 2c shown, the lower pin end portion 25 of the clamping piece 22 is seated on the lower wall portion 28, the upper wall portion 27, ie, in the region of a resilient wall portion 30 of the upper wall portion 27 resiliently bent upwards. In the lower wall portion 28, a recess 29 is provided, in which the lower pin end portion 25 or a nose 31 of the clamping piece 22 engages in its mounting position. The recess 29 may be formed as a blind bore, a blind hole, or as a through hole or through hole in the lower wall portion 28 extent. The recess 29 is adapted to the shape of the lower pin end portion 25 of the clamping piece 22, so that it is positively and in particular almost free of play used. The recess 29 may be formed in particular by injection molding on the lower wall portion 28. When the lower pin end portion 25 of the clamping piece 22 in its mounting position, as in Fig. 2d shown, penetrates into the recess 29, the clamping piece 22 is pressed into the recess 29 due to the spring force of the top pushing from the top first wall portion 27 down and the resilient wall portion 30 relaxes. In this case, a certain spring force is maintained, which presses frictionally on the upper pin end portion 26 and the top plate 23 and thus fixes the clamping piece from above. However, the top plate 23 may also, as in Fig. 3 shown having an upper pin end portion 26 or a nose 32 which engages in a recess 29 on the underside of the upper wall portion 27.

In addition or in addition to a resilient spreading of the upper wall portion 27 through the length of the clamping piece 22 and the pin 24 may be provided to facilitate insertion of a support structure 33 which carries the compressor support member 18 at a distance from the bottom 34. A resilient spreading of the upper wall portion 27 is caused in this respect by the support structure 33, which holds the compressor support member 18 at a distance from the bottom 34 and presses from below against the upper wall portion 27. The support structure 33 may be formed as a strip 35 be. In Fig. 2c the compressor support element 18 is still supported by the support structure 33 and the bar 35. In Fig. 2d is the compressor support member 18 in the mounting position in which the compressor support member 18 behind the rear end of the support structure 33 and the bar 35 is no longer supported by the support structure 33 and the bar 35, but offset down in the mounting position comes to rest in which the lower pin end portion 25 of the clamping piece 22 and the nose 31 is engaged in the recess 29.

As in Fig. 3 As shown, an upper head plate 23a may have an upper pin end portion 26 or a nose 32 which has a recess 29 at the bottom of the upper wall portion 27. In addition or as an alternative to an upper head plate 23a with the upper pin end portion 26 may, as in Fig. 4 illustrated a lower head plate 23 b may be provided with a lower pin end portion 25 or a nose 32 which is engaged in a recess 29 at the bottom of the lower wall portion 28 a. The recess 29 may be a through hole or a blind hole.

The Fig. 5 shows a portion of the housing 16 in the region of the machine room 13 with a support structure 33 according to the invention, which comprises two strips 35 in the embodiment. In addition to the strips 35, for example, on the housing 16 or the wall sections 27, 28 first guide grooves 36 for the top plate 23, 23 a, 23 b of the clamping piece 22 may be attached. In addition or as a substitute to the first guide grooves 36 for the top plate 23, 23 a, 23 b, second guide grooves 37 may be provided for the compressor support elements 18.

In the Fig. 6 For example, a clamping piece 22 is represented representatively for one or more clamping pieces, which is formed on at least one, in the example shown via two predetermined breaking points 38 on the housing 16. By turning the pin 24 of the clamping piece 22, for example, in the direction of the arrow, the clamping piece 22 can be broken off before its assembly of the housing 16 to which it is formed.

Claims (15)

1. Refrigeration appliance, in particular domestic refrigeration appliance, having a housing (16) having a machine space (13), in which a compressor (8) is connected to the housing (16) by a fastening arrangement (17) via at least one compressor support element (18) and an absorbing element (20a, 20b), which fastening arrangement includes at least one clamping piece (22), which is separate from the compressor support element and which is connected to the absorbing element (20a, 20b) and is inserted between two wall segments (27, 28) of the housing (16).
2. Refrigeration appliance according to claim 1, characterised in that the clamping piece (22) has a pin (24) which penetrates the absorbing element (20a, 20b), the upper pin end segment (26) of which is connected to the first wall segment (27) of the housing (16) and/or the lower pin end segment (25) of which is connected to the second wall segment (28) of the housing (16).
3. Refrigeration appliance according to claim 2, characterised in that the upper pin end segment (26) and/or the lower pin end segment (25) is/are latched in a form-fit fashion in an offset (29) in one of the wall segments (27, 28) of the housing (16).
4. Refrigeration appliance according to claim 2 or 3, characterised in that the upper pin end segment (26) and/or the lower pin end segment (25) is/are held in a force-fit or frictionally-engaged fashion against the first wall segment (27) or second wall segment (28) of the housing (16) by means of a spring elastic wall segment (30).
5. Refrigeration appliance according to one of claims 1 to 4, characterised in that the clamping piece (22) has an in particular dish-like face plate (23), which, in the assembly position, rests in a force-fit or frictionally-engaged fashion against the first wall segment (27) or second wall segment (28) of the housing (16).
6. Refrigeration appliance according to claim 5, characterised in that the clamping piece (22) has the face plate (23) at its end facing the first wall segment (27) or second wall segment (28) of the housing (16), said face plate supporting a lug (31), which, in the assembly position, is latched in a form-fit fashion in an offset (29) of the first wall segment (27) or of the second wall segment (28) of the housing (16).
7. Refrigeration appliance according to claim 5 or 6, characterised in that a guide groove (36) running in the direction of insertion is assigned to the opposite wall segments (27, 28) of the housing (16) for the face plate (23).
8. Refrigeration appliance according to one of claims 1 to 7, characterised in that the first wall segment (27) and the second wall segment (28) delimit a gap, the clear height of which in the region of an insertion opening of the gap corresponds to at least the length of the clamping piece (22) or of the pin (24) and is less than or equal to the height of the relaxed absorbing element (20b) in the region of the assembly position of the absorbing element (20b) in the direction of insertion.
9. Refrigeration appliance according to one of claims 1 to 8, characterised in that a support structure (33) is arranged on a base (34) assigned to the housing (16), said support structure being embodied to hold the compressor (8), in particular the compressor (8), together with the at least one preassembled clamping piece (22) or pin (24), at a distance from the base (34) during insertion of the compressor (9) into its assembly position.
10. Refrigeration appliance according to claim 9, characterised in that the support structure (33) is formed by at least one, in particular by two strips (35) projecting upwards from the base (34).
11. Refrigeration appliance according to claim 10, characterised in that the at least one upwardly projecting strip (35) is of a height with which the at least one compressor support element (18) rests on the strip (35) such that the absorbing element (20a, 20b), in particular together with the clamping piece (22), is held at a distance from the base (34) in its assembly position during insertion of the compressor (8).
12. Refrigeration appliance according to claim 11, characterised in that the strip (35) ends in the direction of insertion before reaching the assembly position or is embodied with a reduced height such that the absorbing element (20a, 20b), in particular together with the clamping piece (22), rests on the base (34, 28) in the assembly position.
13. Method for assembling a compressor (8) in a machine space (13) of a housing (16) of a refrigeration appliance (1), in particular a domestic refrigeration appliance having the steps:

    - providing a compressor (8), having at least one compressor support element (18) having feet, and first (20b) and second (20a) absorbing elements;

    - connecting a clamping piece (22) to at least one second absorbing element (20a);

    - inserting the compressor (8) into the machine space (13) of the housing (16) in the assembly direction such that leading feet are guided together with their first, in particular clamping piece-free absorbing elements (20b) between two wall segments (27, 28) of the housing (16) by sliding the compressor support elements (18) resting on a support structure (33), in particular two strips (35) projecting upwards from the base (34), initially at a distance from the base (34) of the housing (16), until the compressor support elements (18) deviate from the strips (35) in the assembly position reached, so that the leading feet with the first absorbing elements (20b) rest on the base (34) of the housing (16).
14. Method according to claim 13, in which the clamping piece (22) connected to the second absorbing element (20a) is provided on a trailing foot and is of a size by means of which a clear height of a gap of the two wall segments (27, 28) of the housing (16) is spring elastically spread in the region of an insertion opening during the insertion of the compressor (8) and upon reaching the assembly position, at least one pin end segment (25, 26) of the clamping piece (22) latches in an offset (29) of the first wall segment (27) and/or of the second wall segment (28) so that the spread wall segments (27, 28) relax in a spring elastic fashion and the leading, in particular clamping piece-free feet with the first absorbing elements (20b) are fixedly clamped between the wall segments (27, 28).
15. Method according to claim 13 or 14, in which the at least one clamping piece (22) is provided moulded on the housing (16) for assembly purposes by way of at least one predetermined breaking point (38) and is broken off from the housing (16) before attaching the clamping piece (22) to an assigned second absorbing element (20a).

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