EP3129731B1 - Domestic refrigeration appliance comprising a compressor having compressor feet - Google Patents

Description

The invention relates to a refrigeration appliance, in particular a household refrigeration appliance, comprising a compressor feet having compressor, which is supported on a support rail via elastic damping body, which are arranged in openings of the compressor feet and held at this on the damping body from below penetrating retaining tabs with the damping body engaging behind securing portions is.

It is known in refrigerators, especially domestic refrigerators such as refrigerators, freezers or fridge-freezer combinations to store the necessary to promote a refrigerant within a refrigerant circuit compressor in the refrigerator vibration damped. A vibration damped storage prevented via the elastic damping body direct contact between the compressor on the one hand and a body of the refrigerator on the other. In this way, a transmission of possible vibrations from the compressor to the body of the refrigerator and thus the formation of disturbing noises is reduced.

From the DE 8627258 U1 , which discloses a household appliance according to the preamble of claim 1, an elastic connection for the vibration-damped storage of a body, in particular a compressor capsule on a mounting rail in the machine compartment of a refrigerator or freezer, known, said provided with perforated support plates compressor capsule with the interposition of in the Breakthrough einknöpfbaren elastic sleeves sitting on the mounting rail and is attached to this aus punching, raised lobes, which penetrate the sleeves from below and set with their over the upper end protruding end portion by the sleeve projecting end portion of the flap by turning directly on the Face of the sleeve hooked fitting this covered so far that he at least partially overlaps with its end occurring even by acting on the compressor capsule lateral force components extreme displacement of their face t. The installation of a compressor in a refrigerator according to the DE 8627258 U1 known elastic connection requires the use of tools to bend the sleeve projecting end portions. In addition, the bending must be done with great care to ensure a secure attachment of the compressor. From the FR 2 643 446 is a similar household appliance known. The present invention has for its object to provide an initially mentioned refrigeration device, in particular a household refrigerator, in which the compressor is mounted simply and inexpensively, in which the compressor is still permanently securely mounted in the refrigerator.

The object is achieved by providing in a refrigeration device mentioned in the beginning, in particular in a domestic refrigeration appliance, that the damping body have protruding end portions of the retaining tabs insertion means which are designed such that the compressor is mounted or can be mounted without plastic deformation of the retaining tabs ,

An essential idea of the invention is that the compressor during its assembly, preferably with already inserted in the openings of the compressor feet damping bodies, can be pushed and snapped on the retaining tabs on the basis of the insertion into its final position. The invention is based on the recognition that the elastic properties of the damping body, which are conventionally provided only for the vibration damping, can be utilized specifically during assembly. The damping body can be elastically deformed during assembly of the compressor so that they can be pushed over the securing portion of the retaining tabs. However, the securing section, which does not plastically deform during assembly, like the entire retaining lug, secures the assembled compressor in that the securing section penetrates and engages behind the damping body from below.

Since it is dispensed with a plastic and preferably also on an elastic deformation of the retaining tabs, results in a high process reliability. Finally, the safety of the compressor, ie the manner of gripping the damping bodies by the securing portion, solely by the geometry chosen, the chosen material and the manufacturing accuracy in producing the retaining tabs, damping body and compressor feet depends, but not by a single fitter.

In addition, the installation of the compressor can be done without tools. Rather, the compressor can be placed on the retaining tabs by hand by a fitter and spent by means of the insertion means in its final position. As a result, the assembly can be accelerated, costs for the procurement and maintenance of tools no longer necessary omitted and eliminates the risk of injury that is basically present in a mounting of the compressor by bending over of metallic sections.

By the retaining tabs connected to the bottom plate engage behind the damping body, which in turn carry the compressor via openings in the compressor feet, can be dispensed with further components for securing the compressor. In particular, no washers between an upper side of the damping body and a lower side of the securing sections or securing forks for locking the retaining tabs relative to the damping bodies are necessary.

Embodiments of the present invention are defined in the subclaims.

According to one embodiment, it is provided that the insertion means are each formed by at least one insertion bevel. In a vertical plan view of the retaining tabs, the insertion bevel preferably drops outwards. The insertion bevel is preferably formed on an upper side of the end portions. Preferably, the insertion slope extends over an opening of the damping body through which the retaining tabs penetrate the damping body in the mounted state of the compressor. In particular, the insertion bevel may extend to an outer edge portion of the end portion. It is conceivable that the insertion bevel is formed by a plane, inclined with respect to the horizontal surface. It is also conceivable that the insertion bevel has a curved course. If a plurality of chamfers, in particular two chamfers, are formed at one end portion, it is conceivable that the chamfers in a vertical plan view of the retaining tab in different directions fall outwards.

According to one embodiment, it is provided that the end portions of the retaining tabs are formed by vertically aligned flat material portions. A height of an end portion, ie the vertical extent of a retaining tab measured from a Upper edge of the damping body is thus substantially larger than a thickness of the end portion. Compared to a comparably dimensioned but horizontally aligned flat material section, this embodiment allows a higher area moment of inertia relative to forces acting perpendicularly on the retaining lug, in particular when the compressor or the damping body is placed on top of it. If at least one insertion bevel is provided, this is preferably arranged on an upper side of the flat material blank.

According to the invention, it is provided that the securing sections project beyond the edge regions of the openings in the case of a vertical plan view of the openings. This results in a particularly secure attachment of the compressor on the support rail, since even in the event that the compressor could solve due to high vertical forces of the damping bodies, this can be held directly by the securing sections. Furthermore, in order to enable a mounting of the compressor without plastic deformation and preferably without elastic deformation of the securing sections, it can be provided that a compressor foot is displaceable against a restoring force of the damping body from a rest position to a mounting position and that at least the securing portion of a retaining tab the edge area the opening in the mounting position does not engage behind. In this way, the compressor can first be placed and latched onto a retaining tab or two retaining tabs and then pulled in the direction of another or two other retaining tabs and placed on the retaining tab or these two retaining tabs and latched taking advantage of the elastic deformation of the damping body. Despite the fact that the edge areas of the openings are engaged by the securing sections, it is also provided in this embodiment that the securing sections or other areas of the end sections do not contact the compressor feet at least after the compressor has been mounted in order to enable decoupling of vibrations of the compressor from the mounting rail. In principle, it can be provided that the retaining tabs have a longitudinal web, which is fastened with a Laschenfuß on the support rail and projects from the securing portion. Preferably, the longitudinal web is a flat material section. If the end section is also formed by a flat material section, both flat material sections are preferably located in a plane, in particular in a vertical plane. The securing section preferably projects only within the end section from the longitudinal web. Although it is basically conceivable that the securing portion of the longitudinal web in two directions, for example, two opposite directions, cantilevered. However, a simpler installation with still secure mounting of the compressor results, if it is provided that the securing portion projects from the longitudinal web in only one direction.

A very secure mounting of the compressor on the mounting rail can be achieved if, according to one embodiment, it is provided that the securing sections of two different retaining tabs project from the longitudinal webs in opposite directions. For example, if four retaining tabs are provided, the securing portions of each two retaining tabs in a first direction and the securing portions of the other two retaining tabs in a second, e.g. to the first opposite, projecting direction. If it is alternatively provided that the securing sections of all retaining tabs project from the longitudinal webs in the same direction, the result is a somewhat simpler assembly of the compressor.

Although it is basically sufficient if the securing portions engage behind the damping body in order to prevent a vertical lifting of the damping body and thus also the compressor feet of the retaining tabs. However, in order to completely suppress possible vertical movements of the compressor, it is provided according to an embodiment that the securing portions contact the damping body. It is possible in particular that the securing sections permanently exert pressure on the damping body. Possible minimal movements of the damping bodies generated by vibrations of the compressor, e.g. Rotary movements about a vertical axis of the Dämfungskörper, which could lead to damage due to friction, can be avoided.

In order to further increase the contact between the securing portion and the damping body, it is provided according to an embodiment that the securing portions have bearing edges extending parallel to surfaces of the damping bodies. Preferably, exactly one attachment leg is provided on each securing section. These plant legs can be obtained by bending over a section of the End regions of the retaining tabs are produced and are already present before the assembly of the compressor. Also, the plant legs are not plastically and preferably not elastically deformed during assembly of the compressor on the support rail, since they form part of the retaining tabs. The plant legs are preferably aligned horizontally, in particular formed by horizontally oriented flat material sections. It is possible, in particular, that the end sections of the retaining tabs are formed except for the bearing limbs by vertically oriented flat material sections, of which the bearing limbs project at right angles.

According to one embodiment, it is provided that the retaining tabs are formed integrally with the support rail. Preferably, the support rail is a sheet metal part. The retaining tabs can be punched out of the mounting rail except for a tab foot and bent into its final position. Typically, the mounting rail is arranged substantially horizontally, while the retaining tabs protrude from the mounting rail substantially vertically upwards. The retaining tabs may have reinforcing beads. Preferably, the reinforcing beads extend vertically upwardly from a tab foot along a longitudinal ridge of the retaining tabs. More preferably, the reinforcing beads terminate in front of the end portion of the retaining tabs, for example, the reinforcing beads may extend to about half the vertical extent of the retaining tabs from the tab leg.

The compressor feet are part of the compressor. The compressor feet are preferably non-destructive to be removed from the compressor. According to one embodiment, it is provided that the compressor feet are integrally connected to a compressor housing. In particular, the compressor feet may be welded to the compressor housing. Typically, the compressor has two compressor feet, each with two openings for receiving the damping body. Preferably, the openings of the compressor feet, e.g. the four openings, in a horizontal plane.

The information vertical and horizontal in the entire disclosure always refer to a refrigeration device according to the use, in particular household refrigeration appliance.

Fig. 1

eine perspektivische Ansicht eines Haushaltskältegerätes,

Fig. 2

eine perspektivische Teilansicht einer Rückseite des Haushaltskältegerätes aus Fig. 1,

Fig. 3

eine schematische Detailansicht aus Fig. 2,

Fig. 4

eine schematische Schnittdarstellung durch eine Haltelasche,

Fig. 5

einen Ausschnitt der in Fig. 2 verwendeten Tragschiene,

Fig. 6

einen Ausschnitt einer Tragschiene für ein zweites Ausführungsbeispiel der Erfindung und

Fig. 7

eine Haltelasche für ein drittes Ausführungsbeispiel der Erfindung.

Embodiments of the present invention are illustrated in the accompanying drawings. Show

Fig. 1

a perspective view of a household refrigerator,

Fig. 2

a partial perspective view of a back of the household refrigerator Fig. 1 .

Fig. 3

a schematic detail view Fig. 2 .

Fig. 4

a schematic sectional view through a retaining tab,

Fig. 5

a section of in Fig. 2 used mounting rail,

Fig. 6

a section of a mounting rail for a second embodiment of the invention and

Fig. 7

a retaining tab for a third embodiment of the invention.

The same or functionally identical elements are provided in the figures with the same reference numerals.

Fig. 1 shows an example of a refrigerator according to the invention a household refrigerator 1 in the form of a fridge-freezer.

A body 2 of the household refrigerating appliance 1 limits, at least in sections, a freezer compartment 3 arranged in the vertical direction Z at the top and a refrigeration compartment 4 arranged vertically underneath, both of which can be closed by separate doors 5, 6 attached to the carcass. Both the freezer compartment 3 and the refrigerating compartment 4 are cooled by means of evaporators 7, 8, which are arranged behind corresponding rear walls 9, 10. The evaporators 7, 8 are connected to a compressor 11. The compressor 11 is arranged in a machine room 12, wherein for illustrative purposes in FIG Fig. 1 a part of the engine room 12 to the cooling compartment 4 limiting wall is cut out.

Fig. 2 shows a partial perspective view of a back of the household refrigerator 1 Fig. 1 , The compressor 11 is arranged in the machine room 12 on a mounting rail 13. For this purpose, two compressor feet 14, 15 have openings in which elastic damping bodies 16, 17, 18 are arranged. In each of the two compressor feet 14, 15 two damping bodies are arranged in each case, wherein in Fig. 2 only three damping body 16, 17, 18 are visible. The compressor feet 14, 15 are welded to a compressor housing 19. The support rail 13 is arranged horizontally and is formed as a sheet metal part, in this embodiment as a punched and bent part.

Fig. 3 shows a schematic detail view Fig. 2 with regard to the compressor foot 15. For illustrative purposes, the damping body necessary for mounting the compressor on the mounting rail 13 is not shown on the right side.

The two retaining tabs 20, 21 are integrally formed with the support rail 13 and are from the horizontally arranged support rail 13 vertically upwards. The support rail 13 with the retaining tabs 20, 21 was made as a stamped and bent part of a thin metal sheet.

End portions 22, 23 of the retaining tabs 20, 21, ie those portions of the retaining tabs 20, 21, which project beyond the damping body 17 vertically upward, are formed by vertically oriented flat material portions. The end sections 22, 23 have securing sections 24, 25 which engage behind the damping bodies 17. A securing portion 24 rests with a vertically downwardly directed surface on a collar 26 of the damping body 17.

At each end portion 22, 23 are each two insertion bevels 27 a, 27 b, 28 a, 28 b provided as an introduction means, so that the compressor 11 could be mounted without plastic deformation of the retaining tabs 20, 21. The insertion bevels 27a, 27b, 28a, 28b are designed as inclined surfaces of the vertically oriented flat material section and fall off to the outside.

As shown by the retaining tab 21 right in Fig. 3 can be seen, the securing portion 25 protrudes beyond an edge 29 of the opening 30 of the compressor foot, to form an additional backup of the compressor 11 against a vertical lifting. The securing portion 25 projects beyond the edge 29 but only so far that at one of the in Fig. 3 shown rest position of the compressor 11 against the restoring forces of the Dämfungselemente 17 shifted in a mounting position Compressor 11, the securing portion 25, the edge 29 no longer surmounted. In the illustration after Fig. 3 the compressor 11 can be moved to the right for this purpose.

The retaining tab 21 is connected via a tab leg 31 with the support rail 13 and has a longitudinal web 32. Starting at the tab foot 31, a reinforcing bead 33 is formed on the retaining tab 21, which runs vertically over half the vertical extent of the retaining tab 21. The securing section 25 projects from the longitudinal web 32. The two securing portions 24, 25 thereby project in different, namely in opposite directions. The retaining tabs 20, 21 are surrounded by cup-shaped recesses 34, 35, which hinder a displacement of the damping body 17 in a horizontal plane.

Fig. 4 shows a schematic sectional view through the retaining tab 20 along a vertically aligned cutting plane.

The rotationally symmetrical damping body 17 has a constriction 36, in which the compressor foot 15 is held over its opening. For this purpose, the damping body 17 can be pressed through the opening by means of a rotationally symmetric chamfer 37. A lifting of the compressor foot 15 in the vertical direction, starting from the in Fig. 4 illustrated rest position, thus initially only by the damping body 17 is prevented. Only with very high forces directed vertically upward on the compressor foot 15, for example in the case of an improper removal attempt of the compressor 11, the compressor foot 15 could slip out of the constriction 36. In this case, the securing portion 24 projecting beyond the edge of the opening would contact the compressor foot 15 and prevent further vertical lifting of the compressor 11.

The damping body 17 has an opening 38 which is arranged concentrically to the rotational symmetry axis 39 and which is formed in the form of a through hole. An inner diameter of the opening 38 is dimensioned such that the longitudinal web 40 of the retaining tab 20 is contacted.

In the embodiment shown, the damping body 17 contacts the securing portion 24 exclusively via the collar 26. If on the Securing portion 24 is arranged at a right angle projecting plant leg (see Fig. 7 ), this could rest on an annular contact surface 41.

Fig. 5 shows a section of the support rail 13 of the embodiment according to the Fig. 1 to 4 with all four retaining tabs 20, 21, 42, 43. In each case two retaining tabs which cooperate with a compressor foot, so retaining tabs 20 and 21 and retaining tabs 42 and 43, have securing portions which are aligned in opposite directions.

Fig. 6 shows a section of a support rail 44 for use in a refrigeration device according to the invention according to a second embodiment. In contrast to the mounting rail 13 off Fig. 5 the retaining tabs 45, 46, which cooperate with a compressor foot on securing portions which are aligned in the same direction.

Fig. 7 shows a retaining tab 47 for use in a refrigeration device according to the invention according to a third embodiment. The securing portion has an angled away from this and extending plant leg 48. <B> LIST OF REFERENCES </ b> 1 Household refrigerator 26 Federation 2 corpus 27a chamfer 3 freezer 27b chamfer 4 refrigerated compartment 28a chamfer 5 door 28b chamfer 6 door 29 edge 7 Evaporator 30 opening 8th Evaporator 31 Laschenfuß 9 rear wall 32 longitudinal web 10 rear wall 33 reinforcing bead 11 compressor 34 deepening 12 engine room 35 deepening 13 rail 36 constriction 14 Compressor foot 37 chamfer 15 Compressor foot 38 opening 16 damping body 39 Rotational symmetry axis 17 damping body 40 longitudinal web 18 damping body 41 contact surface 19 compressor housing 42 retaining tab 20 retaining tab 43 Haltellasche 21 retaining tab 44 rail 22 end 45 retaining tab 23 end 46 retaining tab 24 safety section 47 retaining tab 25 safety section 48 contact leg

Claims (11)

1. Domestic appliance, in particular a domestic refrigeration appliance (1), comprising a compressor (11) having compressor feet (14, 15), which is supported on a support rail (13, 44) by way of elastic damping bodies (16, 17, 18) that are arranged in openings (30) of the compressor feet (14, 15), and which is held to said support rail (13, 44) by way of retaining tabs (20, 21, 42, 43, 45, 46, 47) penetrating the damping bodies (16, 17, 18) from below and having securing portions (24, 25) engaging the damping bodies (16, 17, 18) from behind, characterised in that end portions (22, 23) of the retaining tabs (20, 21, 42, 43, 45, 46, 47) projecting over the damping bodies (16, 17, 18) have insertion means which are designed such that the compressor (11) is or can be installed without any plastic deformation of the retaining tabs (20, 21, 42, 43, 45, 46, 47), wherein the damping bodies are elastically deformed during the installation of the compressor such that they can be pushed over the securing portion of the retaining tabs, and wherein the securing portions (24, 25) project over edge regions of the openings (30) in a plan view of the openings (30) of the compressor feet (14, 15).
2. Domestic appliance according to claim 1, characterised in that the insertion means are formed in each case by at least one insertion chamfer (27a, 27b, 28a, 28b).
3. Domestic appliance according to claim 1 or 2, characterised in that the end portions (22, 23) of the retaining tabs (20, 21, 42, 43, 45, 46, 47) are formed by vertically aligned flat material portions.
4. Domestic appliance according to one of the preceding claims, characterised in that a compressor foot (14, 15) can be displaced counter to a reset force of the damping bodies (16, 17, 18) from a rest position to an installed position and that at least the securing portion (24, 25) of a retaining tab (20, 21, 42, 43, 45, 46, 47) does not engage the edge region of the opening (30) in the installed position from behind.
5. Domestic appliance according to one of claims 1 to 4, characterised in that the securing portions (24, 25) of two different retaining tabs (20, 21, 42, 43, 45, 46, 47) protrude in opposite directions from longitudinal webs (32, 40).
6. Domestic appliance according to one of claims 1 to 4, characterised in that the securing portions (24, 25) of all retaining tabs (20, 21, 42, 43, 45, 46, 47) protrude in the same direction from longitudinal webs (32, 40).
7. Domestic appliance according to one of the preceding claims, characterised in that the securing portions (24, 25) contact the damping bodies (16, 17, 18).
8. Domestic appliance according to claim 7, characterised in that the securing portions (24, 25) have contact arms (48) extending parallel to surfaces of the damping bodies (16, 17, 18).
9. Domestic appliance according to one of the preceding claims, characterised in that the securing portions (24, 25) do not contact the compressor feet (14, 15).
10. Domestic appliance according to one of the preceding claims, characterised in that the retaining tabs (20, 21, 42, 43, 45, 46, 47) are designed to be integral with the support rail (13, 44).
11. Domestic appliance according to one of the preceding claims, characterised in that the compressor feet (14, 15) are connected by substance bonding to a compressor housing (19).

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