EP2263054B1 - Device for fastening the housing of a refrigerant compressor - Google Patents

Abstract

A device for fastening the housing (2) of a refrigerant compressor at a container enclosing a cooling volume, wherein the housing (2) can be fastened to a support element (1) located at the container by way of an arbitrary number of connecting elements (3), wherein at least one connecting element (3) is provided that can be fixed in clamped or latched fashion in at least one corresponding receptacle (4), wherein the at least one connection element (3) and the at least one receptacle (4) can be located either at the housing (2) or at the support element (1). In order to facilitate a simple, fast and nevertheless reliable fastening of the refrigerant compressor at the support element (1), it is provided according to the invention that the housing (2) can be moved from a first mounting position in which the at least one connection element (3) is laid into the at least one receptacle (4) to an operating position in which the connection element (3) is fixed in the receptacle (4) in clamped or latched fashion.

Description

FIELD OF THE INVENTION STATE OF THE ART

The invention relates to a device for fastening the housing of a refrigerant compressor to a container enclosing a cooling volume, wherein the housing can be fastened by means of an arbitrary number of connecting elements to a carrier element arranged on the container, wherein the at least one connecting element or the at least one receptacle optionally can be arranged on the housing or on the carrier element according to the preamble of claim 1.

Such refrigerant compressors have long been known and are mainly used in refrigerators and shelves private and commercial users.

In the course of the refrigerant process, a refrigerant is heated in a known manner by absorbing energy from the space to be cooled in an evaporator and finally superheated and pumped by the refrigerant compressor to a higher pressure level, where it emits heat through a condenser and a throttle, in which a pressure reduction and cooling the refrigerant is carried back to the evaporator.

For this purpose, the refrigerant compressor has a hermetically sealed housing in the interior of which a refrigerant-compressing piston-cylinder-motor arrangement operates, which in the following context, for the sake of simplicity, be referred to as a unit of work. The housing housing the working unit is subsequently positioned on a support element provided for this purpose and connected to the cooling system or to evaporator and capacitor lines of a refrigerator or cooling device.

The carrier element is usually designed plate-shaped and provides a footprint for the housing of the refrigerant compressor. Usually, such support elements are arranged in the region of the bottom or the rear wall of a container enclosing a cooling volume or of the cooling device.

For attachment of the housing on the support element, one uses a connecting element, which is usually designed as a screw connection. For example, arrangements are known from the prior art, in which the angle welded to the housing by means of bolts on the support member are screwed. The distances of the connecting elements or the distances of corresponding, provided on the carrier element receptacles are defined by relevant standards.

However, the assembly of such screw is time consuming and - often associated with considerable difficulties - due to special housing and support elements geometries. The case required use of various assembly tools and a variety of components requires a relatively high installation and cost. Also, a disassembly of the refrigerant compressor housing from the cooling unit or from the carrier element often take place only with damage to the refrigerator or the refrigerant compressor housing, since the screw is rusted.

In addition to screw and adhesive connections for mounting the refrigerant compressor housing on the support element are known. Again, a component-friendly disassembly is hardly possible.

Also clamp connection are known, such as from the WO 2006/092387 A1 on which the preamble of claim 1 is based. However, the preparation of the terminal connections is associated with known refrigerant compressor housings with high installation costs, as well as the disassembly.

The DE 299 05 758 U1 shows a compressor foot plate, which is fixed by means of additional clamping elements 27, which, however, still no determination of the compressor housing takes place. The EP 402 577 A1 shows a latching connection between a compressor housing and a screwed to a cooling container carrier element.

PRESENTATION OF THE INVENTION

It is therefore the object of the present invention to enable a simplified and reliable attachment of the refrigerant compressor housing to the respective carrier element.

In particular, a mounting of the refrigerant compressor housing on the support element with little installation, component and time required to be made possible.

Furthermore, the attachment of the refrigerant compressor housing to the carrier element should be reversible and can be easily solved if necessary.

These objects are achieved by a device according to the characterizing features of claim 1.

According to claim 1, a device for fastening the housing of a refrigerant compressor to a container enclosing a cooling volume comprises any number of connecting elements, by means of which the housing can be fastened to a carrier element arranged on the container, wherein at least one connecting element is provided, which clamps in at least one corresponding receptacle or latching can be fixed, wherein the at least one connecting element or the at least one receptacle can optionally be arranged on the housing or on the carrier element.

According to the invention, the housing is movable from a first mounting position, in which the at least one connecting element is threaded in the at least one receptacle, into an operating position, in which the connecting element is fixed in the receptacle in a clamping or latching manner, the receptacle having a first receiving section, in which a threading of the connecting element in the receptacle is possible, and a second receiving portion, in which the latching or clamping of the connecting element, and the support member has a second receiving portion forming retaining lip, which is increased relative to a housing facing top of the support element , Wherein the foot portion of the connecting element with a front side facing away from the housing on the upper side of the carrier element is slidably and in the retaining lip can be transferred.

In this way, not only the use of screws obsolete by the use of clamping or Verrastungstechnik and thereby the assembly effort over one Attachment by means of screws much easier, but also, compared to conventional clamping and Verrasttechniken, a particularly simple attachment of the housing on the support element allows.

In a particularly preferred, because material-economical embodiment of the invention, the at least one receptacle is arranged on the carrier element, while the at least one connecting element is arranged on the housing.

An inventive attachment of the housing on the support element is reversible, so that in case of need a simple and quick disassembly of the housing can be done.

The connecting element can be fixed both by means of a linear movement, that is to say on a linear path or else by means of a rotational movement, that is to say on a rotational or circular path in the receptacle.

The selection as to whether a linear or translatory or rotationally carried out definition of the / the connecting elements (s) should take place in its / its end position, can be made depending on the existing geometry of the housing and the support element or the cooling device.

In particular, a rotational fixation of the / the connecting elements (s) in the / the corresponding receptacle (s) provides a stable and vibration-resistant grip of the housing on the support element. By the housing is convertible by means of a rotational movement from the mounting position to the operating position, a short and effective mounting movement is made possible.

In a particularly preferred embodiment of the invention, the receptacle has a first receiving portion, in which a threading of the connecting element into the receptacle is possible and a second receiving portion, in which the latching or clamping of the connecting element takes place. The clear width of the first receiving portion is preferably made larger than the clear width of the second receiving portion. In this way, an exact attachment and precise guidance of the connecting element in the receptacle is made possible.

In a special embodiment of the invention, the clear width of the receptacle between the first receiving section and the second receiving section is reduced linearly. In this way, a suitable for clamping the connecting element recording is made.

In a further specific embodiment variant of the invention, it is provided that the clear width of the receptacle at the transition from the first receiving section to the second receiving section is first reduced and then widened. In this way, a suitable for locking the connecting element recording is made.

In a manufacturing technology advantageous embodiment of the invention, each recording consists of two overlapping circular openings.

In a particularly preferred embodiment variant, the connecting element has a shaft section that can be received in the receiving sections of the receptacle and a foot section adjacent thereto. The foot portion is further located to the housing than the shaft portion. Here, the clear width of the first receiving portion is larger than the largest cross-sectional width of the foot portion (and thus allows easy insertion or a Hindurchstecken of the foot portion through the first receiving portion), while the clear width of the second receiving portion is smaller than the largest cross-sectional width of the foot portion.

Such an embodiment of the connecting device allows a simple insertion of the connecting element in the first receiving portion of the receptacle, wherein the connecting element is subsequently conveyed by means of a linear or rotary movement in an operating position of the housing corresponding end position in the second receiving portion. Since the largest cross-sectional width of the foot portion is greater than the clear width of the second receiving portion, no lifting of the housing from the support member is possible upon reaching this end position and the housing is fixed to the carrier element.

With regard to a dimensioning of the receptacle passing through the shaft portion, there are several possibilities.

In a first embodiment, it is provided that the largest cross-sectional width of the shaft portion is dimensioned smaller than the clear width of the second receiving portion. In such a case of execution, there is thus a play between the jacket of the shaft section and the boundary of the second receiving section and the shaft section or the connecting element can easily be moved within the receptacle.

Alternatively, the largest cross-sectional width of the shaft portion may be made smaller than the clear width of the first receiving portion (in which the shaft portion and the connecting element is used in the first mounting position of the housing), but the largest cross-sectional width of the shaft portion is a first Passungsmaß greater than the clear width of the second receiving portion. Thus, if the connecting element according to this configuration is conveyed to its end position in the second receiving section, then a pressing takes place between the second receiving section and the shaft section of the connecting element. In this way, an unintentional return of the connecting element is prevented against the mounting direction to its original position. In particular, can be prevented in this way that the connecting element dissolves due to operational vibration of the refrigerant compressor from its predetermined end position.

A particularly reliable fixing of the connecting element in its end position is made possible by at least the shaft portion of the connecting element is made in a preferred embodiment of an elastically or plastically deformable material. Compression of the elastically or plastically deformable shaft portion during its conveyance to the end position secures the connecting member against being returned to its original position.

A further improvement of the connecting device according to the invention is made possible by the receptacle having a third receiving portion arranged between the first receiving portion and the second receiving portion, the clear width is smaller than the clear width of the second receiving portion and wherein the clear width of the third receiving portion of the other by a second fitting dimension is smaller than the largest cross-sectional width of the shaft portion. Thus, by providing between the first and second receiving portion a waisted passage in the form of the third receiving portion, which the shaft portion during its transport in the Endposition must pass, the connecting element can be securely locked in its final position or in the operating position of the housing.

In a particularly preferred embodiment of the invention, the first receiving portion and the second receiving portion in the form of two keyhole-shaped merging, i. formed in the region of a peripheral segment merging through holes in the support element. A receptacle designed in this way is easy to manufacture in terms of manufacturing technology and enables exact fixing of the connecting element on the carrier element.

In a further production-technically advantageous embodiment variant of the invention, the shank portion and the foot portion of the connecting element are manufactured as separate components, wherein the shank portion has a passage opening through which a fastened to the housing, preferably bolt-shaped adapter portion of the foot portion is passed.

In a further preferred embodiment of the invention, the shaft portion has a spacer portion which is arranged in the operating position of the housing between the housing and the carrier element, wherein the largest cross-sectional width of the spacer portion is both greater than the clear width of the first receiving portion and larger than the clear width of the second receiving section. In particular, when this spacer is made of a vibration-damping material, a vibration transfer from the housing to the support member can be prevented or at least damped.

In order to achieve a further protection of the connecting device according to the invention against unwanted loosening, it is provided in a preferred embodiment that a distance measured between the spacer section and the foot section is smaller by a third fitting dimension the thickness of the area of the carrier element having the receiving sections.

As already mentioned, the connecting element can be fixed in the receptacle both by means of a linear movement, ie also by means of a rotational movement. In the latter case, the trajectory of the connecting element need not necessarily have a circular arc shape, but may also have an arbitrarily curved, e.g. Have parabolic shape, which may allow easier or more flexible installation depending on the application.

In a further preferred embodiment of the invention, at least two, preferably three receptacles are provided along with corresponding connecting elements. The provision of at least two receptacles or connecting elements enables a very stable attachment of the housing to the support element. In particular, under Providence of three shots or fasteners is offered in terms of their static certainty particularly balanced mounting option.

In a special embodiment variant of the invention, the receptacles are offset along a pitch circle, preferably offset from one another equidistant from one another, arranged on the carrier element. This allows easy installation and a balanced weight distribution of the housing on the support element.

In one embodiment with retaining lip, it is provided in a development of the invention that the support member has a suspension portion which is displaceable during transfer of the connecting element foot portion in the retaining lip from an unloaded position to a holding position in which fixed the connecting element in the receptacle is. By provid- ing such a suspension section, undesired loosening of the connecting element from its end position (in which the housing is fixed in the operating position) is reliably prevented.

In a particularly preferred embodiment, it is provided that the suspension section rises in its unloaded position on the top of the support element and contacted in its holding position, the end face of the connecting element foot section at least in sections. As a result of the pressure effect of the suspension section on the foot section-which is thus held in a clamping manner between the retaining lip and the suspension section-unwanted release of the connection element from its end position (in which the housing is fixed in the operating position) can be prevented.

In a production technology particularly easy to implement embodiment of the suspension portion is formed in the form of an integrally formed with the carrier element web, which is preferably bent in the direction of the carrier element to be fastened to the housing.

BRIEF DESCRIPTION OF THE FIGURES

Fig. 1

eine schematische Darstellung eines erfindungsgemäß an einem Trägerelement festgelegten Kältemittelverdichter- Gehäuses in Schrägansicht

Fig.2

eine Draufsicht auf ein erfindungsgemäßes Trägerelement

Fig.3

ein Detail "B" aus Fig.2

Fig.4

ein erfindungsgemäß an einem Trägerelement festgelegtes Kältemittelverdichter-Gehäuse aus Fig.1 in Seitenansicht

Fig.5

eine Schnittdarstellung entlang Linie A-A in Fig.4

Fig.6

das erfindungsgemäß an einem Trägerelement festgelegte Kältemittelverdichter-Gehäuse aus Fig.1 in Unteransicht

Fig.7

eine Draufsicht auf ein erfindungsgemäßes Trägerelement in alternativer Bauweise

Fig.8

ein erfindungsgemäß an einem Trägerelement gemäß Fig.7 festgelegtes Kältemittelverdichter-Gehäuse in Seitenansicht

Fig.9

eine Schnittdarstellung entlang Linie A-A in Fig.8

Fig.10

eine Schrägansicht eines erfindungsgemäß an einem Trägerelement gemäß Fig.7 festgelegten Kältemittelverdichter-Gehäuses

Fig.11

das am Trägerelement festgelegte Kältemittelverdichter- Gehäuse aus Fig.10 in Unteransicht

Fig.12 eine

Detailansicht eines Aufnahmen-Federungsabschnitts gemäß Blickrichtung B in Fig.7

The invention will now be explained in more detail with reference to an embodiment. Showing:

Fig. 1

a schematic representation of an inventively defined on a support member refrigerant compressor housing in an oblique view

Fig.2

a plan view of an inventive carrier element

Figure 3

a detail "B" off Fig.2

Figure 4

an inventively defined on a support member refrigerant compressor housing Fig.1 in side view

Figure 5

a sectional view taken along line AA in Figure 4

Figure 6

the inventively defined on a support member refrigerant compressor housing Fig.1 in bottom view

Figure 7

a plan view of an inventive carrier element in an alternative construction

Figure 8

an invention according to a support element according to Figure 7 fixed refrigerant compressor housing in side view

Figure 9

a sectional view taken along line AA in Figure 8

Figure 10

an oblique view of an according to the invention on a support element according to Figure 7 specified refrigerant compressor housing

Figure 11

the set on the carrier element refrigerant compressor housing Figure 10 in bottom view

Fig.12 a

Detail view of a recording suspension section according to viewing direction B in Figure 7

WAYS FOR CARRYING OUT THE INVENTION

Fig.1 shows a refrigerant compressor with a hermetically sealed housing 2, which is fixed in accordance with the invention on a support element

The plate-shaped in the present embodiment support member 1 is part of a refrigerator or a cooling volume enclosing container and arranged for example in the bottom or the rear wall area. The Carrier element 1 has an upper side 17 facing the housing 2 and a lower side 18 which faces away from the housing 2.

The housing 2 is designed in two parts in the present embodiment and comprises a lower housing half 2a and an upper housing half 2b. In the interior 7 of the housing 2, a working unit in the form of a driven by an electric motor piston-cylinder unit is arranged, which compresses a transported via inlets and outlets refrigerant in a known manner. To accommodate the supply and discharge lines, the housing 2 has various openings 9. Since the components arranged in the interior 7 of the housing 2 and their connection to the inlets and outlets leading to an evaporator and a condenser of the refrigerator are not relevant to the understanding of the present invention, their illustration has been omitted.

The housing 2 can be fastened to the carrier element 1 by means of a connecting device 10 according to the invention, which comprises at least one connecting element 3 arranged on the housing 2, which can be fixed in a clamping or latching manner in at least one corresponding receptacle 4 provided on the carrier element 1.

Alternatively, it would also be possible to arrange the at least one connection element 3 on the support element 1 of the cooling device and the at least one receptacle 4 on the housing 2, e.g. in that a plate 4 having the receptacles 4 is attached to the housing 2 (not shown).

According to the present exemplary embodiment, the carrier element 1 has at least three receivers 4, while the housing 2 is provided with three corresponding connecting elements 3 which can be inserted into the receivers 4.

However, it would also be possible to provide a different number of receptacles 4 or connecting elements 3, e.g. two or four receptacles 4 / connecting elements 3. The provision of only one receptacle 4 and one e.g. Centric at the bottom of the lower housing part 2a arranged connecting element 3 would be conceivable.

As in an individual representation of the carrier element 1 according to the invention Fig.2 can be seen, the receptacles 4 along a pitch circle 11 are arranged offset. The receptacles 4 are each offset by 120 ° to each other, so that there is an equidistant arrangement of the receptacles 4 to each other.

Corresponding to the position of the receptacles 4 on the carrier element 1, the connecting elements 3 are arranged on the housing 2. The connecting elements 3 are arranged equidistant from one another along a pitch circle (not shown).

In Figure 3 is a detailed representation of a receptacle 4 can be seen, which are formed in the form of two different sized through holes 15, 16 through the support member 1. The centers of the holes 15, 16 are each arranged on the pitch circle 11, wherein the two holes 15, 16 merge together in the region of a bore peripheral segment, so that therefore the receptacle 4 has a substantially keyhole-shaped boundary.

The first bore 15 corresponds to a first receiving portion 4 a of the receptacle 4, while the second bore 16 corresponds to a second receiving portion 4 a of the receptacle 4.

In other words, the cross sections of the first receiving portion 4a and the second receiving portion 4b are formed in the form of two overlapping circular shapes or openings.

The receiving portions 4a, 4b of the receptacle 4 can of course also have a different geometric shape than shown in the present embodiment, it is only essential that receptacle 4 has a first portion which is suitable for receiving or for passing the arranged on the housing 2 connecting element 3 is, as well as a narrowing towards this first section second section.

According to Figure 3 is the clear width 4a 'of the first receiving portion 4a larger than the clear width 4b' of the second receiving portion 4b.

The manner of attachment of the connecting element 3 on the support element 1 is in consideration of Figure 5 showing a detail of a side view of the refrigerant compressor according to FIG Figure 4 shows, understandable. The lower housing half 2a has several - in the present embodiment three - bulges 8, on which the already mentioned connecting elements 3 are arranged, for example, welded or screwed. Also, a one-piece design of the connecting elements 3 with the housing 2 is possible.

The connecting element 3 has a shaft section 5 adjoining the housing 2 and a foot section 6 arranged in an end region of the shaft section 5 facing away from the housing 2, the shaft section 5 and the foot section 6 having a cylindrical shape or disk shape.

The first receiving portion 4a has an in Figure 3 drawn clear width 4a '(which corresponds to the diameter of the first bore 15 in the present embodiment), which is greater than the largest cross-sectional width 6' and the diameter of the in Figure 5 marked foot portion 6. In this way, a trouble-free recording or a below described in more detail passing the foot portion 6 is made possible by the first receiving portion 4a.

A clear width 4b 'of the second receiving portion 4b and the diameter of the second bore 16, however, is smaller than the cross-sectional width 6' and the diameter of the foot portion. 6

In the Figure 5 drawn largest cross-sectional width 5 'of the shaft portion 5 is selected so that the shaft portion 5 can be moved under manual force application easily both in the first receiving portion 4a and in the second receiving portion 4b.

Regardless of the specific geometric configuration of the receptacle 4, the first receiving portion 4 a each allow threading of the connecting element 3 in the receptacle 4.

An assembly of the housing 2 on the carrier element 1 is carried out in the following manner:

First, the housing 2 is brought into a position in which the connecting elements 3 above the first receiving portion 4a are located (in the present embodiment, the longitudinal axis 20 of the aligned Connecting element 3 with the axis of the first bore 15). Then threading of the foot section 6 takes place in the receptacle 4 in an in Fig.1 and Figure 5 Plotted first mounting direction 14 (first assembly movement). The first mounting direction 14 extends in the axial direction of the connecting elements 3 or substantially normal to the upper side 17 of the carrier element 1.

Once the connecting elements 3 are threaded into the corresponding first receiving portions 4a of the receptacles 4, the housing 2 is in a first mounting position.

As a result, the housing 2 together with the connecting elements 3, following a second mounting direction 19, is rotated into an operating position (second assembly movement - see also FIG Fig.2 ). The second mounting direction 19 extends substantially normal to the first mounting direction 14 and substantially parallel to the top 17 of the support element 1 (which is arranged horizontally in the present embodiment). The second mounting direction 19 further extends substantially normal to the longitudinal axis 20 of the connecting element 3. Looking from a bird's eye view of the in Fig.1 shown arrangement, so a rotation of the housing 2 is completed clockwise.

During this second assembly movement, the connecting elements 3 are conveyed from a starting position in which the longitudinal axes 20 of the connecting elements 3 are located within the first receiving section 4a to an end position in which the longitudinal axes 20 of the connecting elements 3 are located within the second receiving section 4b. When the connecting elements 3 have been transported to their final position, is also the housing 2 in its operating position and is fixed in this on the support element 1 (see also Figure 6 ).

Since the clear width 4b 'of the second receiving section 4b or the diameter of the second bore 16 is made smaller than the largest cross-sectional width 6' or the diameter of the foot section 6, the foot section 6, which is displaced to its end position during the second assembly movement, ensures the housing 2 against lifting from the support element. 1

As in Figure 3 As can be seen, the receptacle 4 has a third receiving section 4c arranged between the first receiving section 4 and the second receiving section 4b, whose clear width 4c 'is smaller than the clear width 4b' of the second receiving section 4b, the clear width 4c 'of this third receiving section 4c is further smaller by a second mating dimension than the cross-sectional width 5 'of the shank portion 5. Like Figure 3 shows, those areas in which the two receiving portions 4a and 4b flow into each other and in which the third receiving portion 4c is located, provided with curves 12, to allow an ideal conveying the shaft portion 5 in its end position.

During its transport from the starting position to its end position, therefore, the shaft section 5 of the connecting element 3 must pass through a waisted passage in the form of the third receiving section 4c. After one of the second mounting direction 19 subsequent passing of the third receiving portion 4c of the shaft portion 5 of the connecting element 3 and thus the entire housing 3 is prevented from moving back against the second mounting direction 19. Since the connecting element 3 now securely clamped in its final position or is locked, a particularly effective protection against turning back of the housing 3 is achieved in its first mounting position.

If the connecting element 3 is to be conveyed back to its starting position or the housing 3 is released from its operating position in the course of disassembly, then a movement cycle must take place counter to the second and first mounting directions 19 and 14 described above.

The cross-sectional width 5 'of the shaft portion 5 can be configured in different ways.

Thus, it is provided in a first embodiment that the (largest) cross-sectional width 5 'of the shaft portion 5 is dimensioned smaller than the clear width 4b' of the second receiving portion 4b. In such a case of execution, there is thus a clearance between the jacket of the shaft section 5 and the boundary of the second receiving section 4b, and the shaft section 5 or the connecting element 3 can be moved within easy reach throughout the receptacle 4 (unless the clear width 4c 'of the third Receiving portion 4c is selected smaller than the largest cross-sectional width 5 'of the shaft portion 5).

Alternatively, the cross-sectional width 5 'of the shaft portion 5 may be made smaller in a second embodiment than the clear width 4a' of the first receiving portion 4a, but the cross-sectional width 5 'of the shaft portion 5 is made larger by a first fit dimension than the clear width 4b 'of the second receiving portion 4b. Thus, if the connecting element 3 according to the second embodiment is conveyed to its end position in the second receiving section 4b, a pressure is applied between the second receiving section 4b and the second receiving section 4b Shank portion of the connecting element or it is opposite to the second assembly movement in the mounting direction 19 a significant resistance. Connecting element 3 According to the second embodiment variant of the connecting element shaft section 5, an unintentional or vibration-related return movement of the connecting element 3 against the second mounting direction 19 into its starting position is prevented.

It should be noted that the widths 4a ', 4b', 4c 'and 5' of the receptacle 4 and of the connecting element 3 are always measured orthogonal to the path along which the connecting element 3 is guided during the second assembly movement. Also, in the event that the receptacle 4 according to the invention is not designed as a bore or from circular sections but has a different geometry, those opening dimensions of the receptacle 4 measured orthogonally to the second mounting direction 19 are always relevant.

Since the receiving sections 4a, 4b can each have any desired geometric shape or can have a continuous or discontinuous width course along the respective movement path of the connecting element 3, the clear width 4a 'of the first receiving section 4a is understood to mean that width of the first receiving section 4a the connecting element 3 in its initial position (and the housing 3 in its first mounting position) is positionable, while the clear width 4b 'of the second receiving portion 4b that width of the second receiving portion 4b is understood, at which the connecting element 3 in its end position (and the housing 3 in its operating position) is positionable. Of course, in this context, as the cross-sectional widths of the connecting element 3 and the shaft portion 5, the foot portion 6 and the Distance section 5a each to understand the largest cross-sectional widths of these component sections, which are guided during the assembly movements in the receiving portions 4a, 4b.

The shank portion 5 of the connecting element 3 is made in a preferred embodiment of the invention of an elastically or plastically deformable material. In particular, when the connecting element shaft portion 5 is designed according to the described second embodiment and is therefore compressed during its transport into its end position in the receptacle 4 and in the second receiving portion 4b, a reliable fixing of the connecting element 3 in its end position and thus of the housing 2 are enabled in its operating position. A secure fixing of the connecting element 3 is ensured, in particular, if the shaft section 6 is made of an elastically deformable material, since such an elastic shaft section 6 is briefly compressed during the passage of the third receiving section 4c and then completely in its end position in the second receiving section 4b or partially relax to its original size.

Of course, the entire connecting element 3 together with the foot section 6 may be made of an elastically or plastically deformable material.

The shank portion 5 may be made in one piece with the foot portion 6 of the connecting element 3. In a preferred embodiment according to Figure 5 However, the shaft portion 5 and the foot portion 6 of the connecting element 3 are made as separate components, wherein the shaft portion 5 has a through hole 13, through which a bolt-shaped adapter section 6a of the foot section 6, which can be fastened to the housing 2, is passed.

In a further preferred embodiment of the invention, the shaft portion 5 of the connecting element 3 is provided with a spacer portion 5a. The e.g. Cylindrically shaped spacer portion 5a contacted with a first end faces the top 17 of the support member 1, while with a second end face, the bulges 8 of the so arranged between the housing 2 and the support member 1 and these distanced from each other. Here, the largest cross-sectional width of the spacer portion 5a and its diameter is both greater than the clear width 4a 'of the first receiving portion 4a and larger than the clear width 4b' of the second receiving portion 4b configured.

The spacer portion 5a is preferably made of a vibration damping material, e.g. made of rubber or other plastic to prevent a vibration transfer from the housing 2 to the support member 1.

Of course, the spacer portion 5a does not need to be integrally formed with the shaft portion of the connecting member 3 as shown in the present embodiment, but may be made as a separate member.

In order to achieve a further protection of the connecting device 10 against unwanted loosening, provision may be made for the underside of the spacer section 5a facing one of the top side 17 of the carrier element 1 and a top side of the foot section 6 assigned to the underside 18 of the carrier element 1 to measure the distance 22 smaller by a third Maßungsmaß the thickness of the receiving portions 4a, 4b having region of the support element. 1

From the previously described geometry of the receptacles 4 according to the invention, it follows that the second assembly movement of the connecting elements 3 along the second mounting direction 19 is a rotational movement (see FIG Fig.2 and 3 ). The center of this rotational movement or arcuate path would be to think in a center of the pitch circle 11. The rotational path along which each of the connecting elements 3 is moved thus extends from the center of the first bore 15 and the first receiving portion 4a to the center of the second bore 16 and the second receiving portion 4b.

Instead of a circular arc-shaped path, which performs the connecting element 3 during the second assembly movement, it would of course also conceivable to use an arbitrarily curved, e.g. parabolic course or recording 4 provide.

Alternatively, however, it is also possible to arrange the receptacles 4 on the carrier element 1 and the connecting elements 3 on the housing 2 so that a linear path for fixing the connecting elements 3 in the receptacles 4 is realized or that the connecting elements 3 by means of a linear assembly movement in the recordings 4 can be specified (see Fig.7-11 ).

Figure 7 shows a preferred embodiment of a support element 1 with three receptacles 4, in which the connecting elements 3, following a linear trajectory, can be fixed. In this case, the carrier element 1 in the region of each receptacle 4 has a holding lip 23 forming the second receiving portion 4b.

This retaining lip 23, which is embodied essentially in the form of an open half shell in the present exemplary embodiment, is raised in relation to the upper side 17 of the carrier element 1 facing the housing 2. The retaining lip 23 is designed in the present embodiment in one piece with the carrier element 1, wherein the increase of the retaining lip 23 over the top 17 of the support element 1, e.g. produced by a deep-drawing process.

The representation according to Figure 7 becomes more understandable when an in Figure 9 shown sectional view is considered. Figure 9 shows a vertically extending through the inventive connecting device 10 section according to section AA in Figure 8 , wherein the connecting element 3 is already in its fixed end position in the receptacle 4.

The foot portion 6 of the connecting element 3 is slidable with a facing away from the housing 2 end face 25 on the upper side 17 of the support element 1 and is first (together with the housing 2) in the region of in Figure 7 positioned first receiving portion 4a positioned. This positioning can be carried out in the course of a first assembly movement of the connecting element 3 taking place in a first mounting direction 14. Unlike the ones based on Fig.2 Recordings 4 described are the recordings 4 according to Figure 7 designed open or have no closed circumferential contour. Although formed by the retaining lip 23 second receiving portion 4b in the embodiment according to Figure 7 again designed as a bore, however, this hole or the second receiving portion 4b is open.

On the retaining lip 23, two in the direction of the first receiving portion 4a facing end portions 23a, 23b are provided, which of the in the course of a second Assembly movement along the linear second mounting direction 19 moved shaft portion 5 of the connecting element 3 is first contacted and then passed before the shaft portion 5 and the connecting element 3 is conveyed to its end position in the second receiving portion 4b.

The foot section 6 of the connecting element 3 slides with an end face 25 remote from the housing during the entire second assembly movement along the second mounting direction 19 on the upper side 17 of the carrier element 1.

Specifically, the first receiving portion 4a of the receptacle 4 in this embodiment is defined only by the two end portions 23a, 23b of the holding lip 23, while the first receiving portion 4a is otherwise open. At this point it should be noted that of course in the embodiment according to the Figures 1-6 an open receptacle 4 can be provided or it does not necessarily have to have a peripheral contour that is closed on all sides.

The already on the basis of Figures 1-6 described dimensioning possibilities of the receptacle 4 and the connecting element 3, in particular the dimensioning of in Figure 7 drawn widths 4b ', 4c' and 5 'of the receptacle 4 and the shaft portion 5 are also in the embodiment according to the Figures 7-11 applicable.

In the embodiment according to the Figures 7-11 the latching-enabling third receiving section 4c results in that region of the receptacle 4 in which the end sections 23a, 23b of the retaining lip 23 open into the second receiving section 4b (see FIG Figure 7 ), while as a clear width of the second receiving portion 4b turn the Diameter of the second receiving portion 4b forming hole is measured.

In order to secure the foot portion 6 of the connecting element 3 and thus the housing 2 securely on the support element 1, the support element is further provided with a suspension portion 24 (see plan view Figure 7 ). The suspension portion 24 is displaceable during a transfer of the connecting element foot portion 6 in the retaining lip 23 from an unloaded position to a holding position in which the connecting element 3 is fixed in the receptacle 4.

Preferably, this suspension portion 24 rises in an unloaded position 26, as in a side view Fig. 12 shown, over the top 17 of the support member 1 and is displaceable during attachment of the housing 2 on the support member 1 in the mounting direction 19 according to an engagement of the fastener foot section 6 in the retaining lip 23 in a tensioned position 27 (the tensioned position 27 corresponds in this case the holding position of the suspension portion 24). If the connecting element foot section 6 has been transferred into the retaining lip 23, then the end face 25 of the connecting element foot section 6 is contacted in sections by an end section of the suspension section 24 facing the receptacle 4 under tension and the connecting element foot section 6 between the retaining lip 23 and the suspension section 24 clamped. This has the consequence that the connecting element 3 is fixed in its end position in the receptacle 4 and thus the housing 2 in its operating position on the support element 1.

In the unloaded state 26, the suspension portion 24 by a first angle α of up to 45 ° relative to the Top 17 of the support member 1 raise, while the suspension portion 24 in its holding position or in the cocked position 27 by a second angle β of up to 45 ° relative to the top 17 in a direction away from the housing 2 direction can bend ( Figure 12 ). The second angle β can also be approximately zero, so that the suspension portion 24 is in its tensioned position 27 substantially in a plane with the carrier element.

In a preferred embodiment, the suspension portion 24 is formed in the form of a web formed integrally with the carrier element 1. This web can be bent in the direction of the housing 2 to be fastened to the carrier element 1 (see above in FIG Fig. 12 shown unloaded state 26). Of course, the suspension section 24 can also be a separate component which can be attached to the carrier element 1.

As an alternative to a clamping contact of the end face 25 of the connecting element foot section 6 by the suspension section 24 located in its holding position, it is also possible for the foot section 6 to come to lie in its holding position next to the foot section 6 or next to the shaft section 5, wherein preferably a peripheral region of the foot portion 6 or the shaft portion 5 of the connecting member 3 is contacted by an end portion of the suspension portion 24 (see FIG Figure 9 shown). Again, the suspension portion 24, before it enters its holding position, first of the foot portion 6 of the connecting element 3 from an unloaded position - in which the suspension portion 24 above or below, but preferably at the same height with the support member 1 is (the angle α and β are in the latter case almost zero) - in a strained Position 27 displaced ( Figure 12 ). However, after complete conveyance of the connecting element 3 into its end position, the suspension section 24 snaps back into a holding position from the tensioned position 27, in which the suspension section 24 is again above or below, but preferably at the same height as the carrier element 1 (the angles α and β are close to zero in the latter case).

It is understood that the retaining lip 23 overlaps the foot portion 6 of the connecting element 3 in each case so far that a reliable hold of the connecting element 3 in the receptacle 4 is ensured.

Instead of a described with reference to the present figures, latching fixing the connecting elements 3 in the receptacles 4 and a clamping fixing of the connecting elements 3 in the receptacles 4 is possible by the receptacle 4, for example. along the second mounting direction 19 is linearly tapered and the shaft portions 5 of the connecting elements 3 are successively clamped during transport from its initial position to its end position in the receptacle 4 and in the second receiving portion 4b.

Claims (14)

1. Device for fastening the housing (2) of a refrigerant compressor on a container enclosing a cooling volume, wherein the housing (2) can be fastened by means of an arbitrary number of connection elements (3) on a carrier element (1) arranged on the container and at least one connection element (3) is provided that can be fastened in a clamping or latching manner in at least one corresponding receptacle (4), wherein the at least one connection element (3) or the at least one receptacle (4) can be arranged selectively on the housing (2) or on the carrier element (1), wherein the housing (2) can be moved from a first mounting position in which the at least one connection element (3) is threaded into the at least one receptacle (4) to an operating position in which the connection element (3) is fastened in a clamping or latching manner in the receptacle (4), characterized in that the receptacle (4) has a first receptacle section (4a) in which the connection element (3) can be threaded into the receptacle (4) and a second receptacle section (4b) in which the connection element (3) is latched or clamped, and that the carrier element (1) has a retaining lip (23) that forms the second receptacle section (4b) and is elevated relative to a top side (17) of the carrier element (1) pointing toward the housing (2), wherein the foot section (6) of the connection element (3) can slide with an end face (25) facing away from the housing (2) on the top side (17) of the carrier element (1) and can be transferred into the retaining lip (23).
2. Device according to Claim 1, characterized in that each receptacle (4) is made from two overlapping, circular openings.
3. Refrigerant compressor according to one of Claims 1 or 2, characterized in that the receptacle (4) has a first receptacle section (4a) in which the connection element (3) can be threaded into the receptacle (4) and a second receptacle section (4b) in which the connection element (3) is latched or clamped, and that the connection element (3) has a shaft section (5) that can be held in the receptacle sections (4a, 4b) of the receptacle (4) and a foot section (6) adjacent to the shaft section, wherein the open width (4a') of the first receptacle section (4a) is greater than the greatest cross-sectional width (6') of the foot section (B), while the open width (4b') of the second receptacle section (4b) is less than the greatest cross-sectional width (6') of the foot section (6).
4. Refrigerant compressor according to Claim 3, characterized in that the greatest cross-sectional width (5') of the shaft section (5) is less than the open width (4b') of the second receptacle section (4b).
5. Refrigerant compressor according to Claim 3 or 4, characterized in that the greatest cross-sectional width (5') of the shaft section (5) is less than the open width (4a') of the first receptacle section (4a), but is greater by a first dimension of fit than the open width (4b') of the second receptacle section (4b).
6. Refrigerant compressor according to one of Claims 3 to 5, characterized in that at least the shaft section (5) of the connection element (3) is produced from a material that can be deformed elastically or plastically.
7. Refrigerant compressor according to one of Claims 3 to 6, characterized in that the receptacle (4) has a third receptacle section (4c) arranged between the first receptacle section (4a) and the second receptacle section (4b), wherein the open width (4c') of the third section is less than the open width (4b') of the second receptacle section (4b) and wherein the open width (4c') of the third receptacle section (4c) is smaller additionally by a second dimension of fit than the greatest cross-sectional width (5') of the shaft section (5).
8. Refrigerant compressor according to one of Claims 3 to 7, characterized in that the shaft section (5) and the foot section (6) of the connection element (3) are made as separate components, wherein the shaft section (5) has a passage opening (13) through which an advantageously bolt-shaped adapter section (6a) of the foot section (6) is guided, wherein this adapter section can be fastened on the housing (2).
9. Refrigerant compressor according to one of Claims 3 to 8, characterized in that the shaft section (5) comprises a spacer section (5a) advantageously made from vibration-damping material that is arranged, in the operating position of the housing (2), between the housing (2) and the carrier element (1), wherein the greatest cross-sectional width of the spacer section (5a) is both greater than the open width (4a') of the first receptacle section (4a) and also greater than the open width (4b') of the second receptacle section (4b).
10. Refrigerant compressor according to one of Claims 1 to 9, characterized in that the connection element (3) can be fastened in the receptacle (4) along a curved path.
11. Refrigerant compressor according to Claim 10, characterized in that at least two, advantageously three receptacles (4) are provided together with corresponding connection elements (3) and that the receptacles (4) are arranged on the carrier element (1) offset along a reference circle (11), advantageously offset equidistant to each other.
12. Refrigerant compressor according to Claim 1, characterized in that the carrier element (1) has a spring section (24) that can be displaced during a transfer of the connection element foot section (6) into the retaining lip (23) from an unloaded position (26) into a retained position in which the connection element (3) is fastened in the receptacle (4).
13. Refrigerant compressor according to Claim 12, characterized in that, in its unloaded position (26), the spring section (24) is raised above the top side (17) of the carrier element (1) and, in its retained position, contacts the end face (25) of the connection element foot section (6) at least in some sections.
14. Refrigerant compressor according to Claim 12 or 13, characterized in that the spring section (24) is constructed in the form of a web that is constructed integrally with the carrier element (1) and that is advantageously bent in the direction of the housing (2) to be fastened on the carrier element (1).

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